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Several advantages of flame retardant masterbatch
2021 / 09 / 18
Because of the flame retardant efficiency, environmental protection, efficiency, convenience and so on, the flame retardant masterbatch has become an effective substitute for the traditional flame retardant and has been widely used in the various aspects of plastic granulation, extrusion, injection molding and other aspects. The effective flame retardant masterbatch is also known as the flame retardant masterbatch for modified plastics plant. The following advantages of using functional flame retardant masterbatch in modification plant. 1. Reduce cost With the progress of science and technology, the continuous development of carrier plastics and equipment, high concentration, high dispersion and high compatibility are possible. A small amount of carrier is no longer the main cause affecting the flame retardancy. Thus, the ideal condition of the exchange of flame retardant and powdery flame retardant is realized, and the flame retardant effect is not constant, and the flame retardancy efficiency is improved. Together with the organic combination of the fire-retardant masterbatch, the cost is reduced by the collective purchase, and the cost advantage of the flame retardant masterbatch is guaranteed, so that the cost can be effectively reduced after the customer is used. 2. improve efficiency The use of flame-retardant masterbatch makes the material more convenient, shorten the time, improve the working efficiency, and improve the mixi
2021 / 09 / 16
Lubricants are divided into two areas, internal and external lubricants. The transition between external and internal lubricating effect is fluid, however, – internal lubricants often also have a certain external lubrication effect and vice versa. Lubricants having both effects are therefore called [combined lubricants". Internal lubricants reduce the frictional forces occurring between the PVC molecule chains, thus reducing melt viscosity. They are polar and thus are highly compatible with PVC. They help achieve excellent transparency even at high dosages and do not tend to exudate, which helps optimizing welding, gluing, and printing properties of the final product. External lubricants reduce the adhesion between PVC and metal surfaces. They are mostly non-polar such as paraffin and polyethylene waxes. The external lubrication effect is largely determined by the length of the hydrocarbon chain, its branching and its functional group. At high dosages they can lead to cloudiness and exudation.
What is PVC Lubricants in china
2021 / 09 / 16
PVC Lubricantsare divided into two areas, internal and external lubricants. Internal lubricants effect1.A reduction in friction heat, 2.reducing melt viscosity. 3.Postpone gelation 4.Improved flow charateristics. External lubricants effect 1.Delayed gelation 2.Improved gloss 3.Reduced friction 4.Provide release propertiesInternal lubricant used on PVC mainly including:Stearic acid, Calcium stearate,GMS,DMG,n-butyl stearate,Novista TL60.TL16.TL32External lubricants used on PVC mainly including: PE wax,Paraffin wax,loxiol TL70S,TL74 and so on for more inquiry, mandyzhang@novistagroup.com
Test methods on flame retardant
2021 / 09 / 11
Common flame retardant tests include combustion tests, limit oxygen index, glow wire tests, and smoke test. The purpose of the flame retardant test is to evaluate the burning characteristics of the material, that is, to test the sample using conditions that simulate actual combustion, and evaluate the burning characteristics of the sample from different dimensions such as ignitability, ignitability, fumes, and flammability. First. Burning test The combustion test refers to igniting the sample by means of an open flame, and comprehensively evaluating the flammability of the sample according to indicators such as burning speed, flame duration, and presence or absence of molten droplets. Because of its scientific evaluation method and universality, UL94 is widely used in flame retardant evaluation of various materials. Most of the combustion test standards are based on and improved based on the UL94 combustion evaluation method. Second, the limit oxygen index test The limiting oxygen index evaluates the flammability of the sample. Under the specified test conditions, the minimum oxygen concentration that can just maintain the material's combustion is determined. The test method is to fix the sample vertically in the combustion cylinder and fill it with a certain concentration of oxygen and nitrogen, ignite the top of the sample with an igniter, observe the sample combustion, and adjust the oxygen concentration accordingly, until the measurement sample just maintains the lowest level of equilibrium combustion. Oxygen concentration, expressed as a percentage of oxygen content. Third, the glow wire test
EEE Products that Use Flame Retardants
2021 / 09 / 11
The use of electrical and electronic equipment (EEE) is pervasive everywhere we live, work and do business. We rely on these products and devices to work properly-and safely-and we rarely think about how they are made. Flame retardants are incorporated into a wide variety of electrical and electronic products used by consumers, businesses, and the medical and transportation industries to meet fire safety standards. These include complex electrical and electronic devices that demand high performance electrical properties, but must also have important fire-resistant characteristics, such as those used in military applications. The diverse EEE applications and product uses, from the USB ports and insulated cables we plug into our computers to the printed wiring boards in the control panels of jets, all have different flame retardant needs. As a result, flame retardant solutions are carefully matched to the materials used in each application. Learn more about how flame retardants work. Some of the many examples of products that rely on flame retardants to achieve flammability standards include: Consumer electronics (i.e., smart phones, TV sets, DVRs, laptops) Communication and information technology (IT) equipment (i.e., microprocessors, computer servers, modems, printers, copy machines, fax machines, radio
Why are flame retardants still necessary?
2021 / 09 / 11
According to the National Fire Protection Association (NFPA), the number of reported fires in the United States decreased by seven percent from 2008 to 2009. In addition, between 1977 and 2009, civilian fire deaths declined from 7,395 to 3,010 respectively. Flame retardants have played a key role in reducing the incidence of fire. Unfortunately, despite the perceptions of some that fires are no longer a cause for concern, fire dangers continue to exist. The NFPA reported that in 2009: 1,348,500 fires were reported in the United States These fires caused 3,010 civilian deaths and 17,050 civilian injuries. All fires caused $12.5 billion in property damage. A fire department responded to a fire every 23 seconds. One civilian fire injury was reported every 31 minutes. One civilian fire death occurred every two hours and 55 minutes. Flame retardants have proven to work and continue to be an important component in the overall effort to address the dangerous consequences of fire, prevent fire-related injuries and protect lives. The use of flame retardants in upholstered furniture is a clear example of how flame retardants c
MBS Additives in china of future
2021 / 09 / 10
As one of the most important impact modifiers for PVC, MBS resin can not only toughen PVC, but also keep the transparency of PVC to the maximum extent. At the same time, compared with other impact modifiers, MBS resin can also greatly improve the toughness of products at the same dosage. Therefore, MBS resin is widely used in the processing and application of engineering plastics such as PVC and PBT / PC.
ASA High Rubber Powder introduction
2021 / 09 / 10
This is our self-developed product,it is a ternary graft copolymer which is made up of acrylonitrile (A), styrene (S) and acrylate(A).Due to the introduction of excluding double bond of acrylic ester rubber replaced the butadiene rubber, the weather resistance has a substantial improvement,about 10 times higher than ABS high rubber powder and mechanical properties, process ability, electrical insulation,chemical resistance character is also improved.In addition, ASA resin made from high rubber content ASA has good coloration. Due to its excellent weather fastness, ASA resin can be dyed into various bright colors without fading easily.Products processed with ASA resin do not need surface protection such as spray painting or electroplating, but can be directly used outdoors and exposed to the sun for 9 to 15 months. The impact strength and elongation hardly decrease, and the color hardly changes.
ASA High Rubber Powder Application
2021 / 09 / 10
ASA High Rubber Powder Application 1. Application in architecture and bathroom ASA has excellent oil and chemical resistance, so it can be used to make water tank, drains pipe and pipe fittings, swimming pool pumps and filter shells, hot springs, pool steps and other products. At the same time, ASA has excellent weather resistance and good color stability. It is also used to make signboards, posting boxes, light household wall panels, flowerpots, louver frame and and decorations. 2. Application in automobiles and motorcycles ASA has excellent weather resistance, even after a long time of exposure to the sun and rain,it will not appear gray, and it has excellent chemical resistance and environmental stress cracking resistance, can withstand hot water treatment and detergent cleaning. It is mainly used in the rear reflector, radiator grille, door column decorative plate, window frame, roof vent fence, streamline cover and lamp shell of automobile. ASA is also used more and more in interiors decoration , such as instrument and decorative panels, as well small low-seat and streamlined covers motorcycles. For example, Honda, TVS, Suzuki and other locomotive brands are widely used. 3. Application in electronic and electrical engineering ASA has good weather resistance,because the satellite antenna is placed in the open air, strong winds and changing climate will cause serious erosion to the external parts of the antenna, and unsuitable materials will rust and brittle. The mobile antenna, TV antenna parts,cable connection box and the protective case of satellite electronic device made by ASA solve the problem well. At the same time, because of its excellent chemical resistance, heat resistance, coloring stability, excellent oil resistance and other characteristics, it can be used to make washing machine panel, refrigerator handle, sewing machine, microwave oven and other household dur
2021 / 09 / 04
A smoldering cigarette could turn an apartment without flame retardant protection into an inferno in less than 3 minutes. However, if the chair, bedding, or carpet where the cigarette lay, had flame retardant, the fire might never have started. And if a fire did start, the flame retardants would have reduced the heat and spread of the fire, taking 10-15 minutes to be deadly. Flame retardants provide time: time to leave in safety. It's been proven many times that flame retardants save lives. Here are a couple excerpts from the video below asking "Do Flame Retardants Work?" produced by American Chemistry. "There's plenty of evidence that flame retardants work. There have been numerous studies that have concluded that when you put the right amount of the right type of flame retardant with the right material, they make a massive difference in terms of heat release, which is the principal property of a fire. A study at the National Bureau of Standards comparing products treated with flame retardants, against those that were not treated, found a significant increase in the amount of time for escape and rescue." - Marco Hirshler, President & Technical Director, GBH International "A recent Air France flight that crashed, off the runway in Paris, 353 people aboard. the plane was completely destroyed by fire, but all 353 passengers were able to get off unhurt, because the interior of the plane was heavily flame retarded, which gave them time for escape."
2021 / 09 / 04
Three components must be present in order for a fire to occur: oxygen (or an oxidizing agent), heat and fuel. This is often represented by the "fire triangle" or "combustion triangle." The fire tetrahedron represents the addition of a component, the chemical chain reaction, to the three already present in the fire triangle. After the fire ignites, an exothermic chain reaction keeps the fire going until something is introduced into the fire that blocks it. Water is one of the most common choices of fire suppressants. But in some cases, water will not suppress the fire, and may even make it worse. Flame retardant chemicals were developed to block the other elements that were part of the "fire triangle." Flame retardant chemicals may block the oxygen (foams), hydrated flame retardant chemicals release water (aluminum trihydrate and magnesium hydroxide) and halogenated flame retardant chemicals (bromine and chlorine) remove free radicals and create a barrier of inert gas that suppresses the chemical reaction creating the fire. Most items will release flammable gases when they burn, which are a catalyst for the fire. The fire is aided with the oxygen in the air. Some materials, like wood, do not produce gases when they burn. Instead, they produce a "char" as the result of smoldering, and often times can extinguish themselves. Natural charring has been adopted in some flame retardants, allowing them to create a char on the product that is burning. Much like the wood that stops burning from the char, these materials will self-extinguish when the char forms and smothers the fire.
Halogen free flame retardant for glass fibre nylon of original color, light color
2021 / 09 / 04
Novista®PN2131C is equivalent to Exolit OP1312, used for GF nylon6/PA6 Novista®PN4131C is equivalent to Exolit OP1314, used for GF nylon66/PA66 Novista®PN5131 is equivalent to Exolit OP1400, used for 9T nylon, 10T nylon, PPA. Flame-retardant nylon is one of many modified varieties of nylon. It can be used in automobile ignition system components, solar photovoltaic cell components, home appliance plugs and sockets, electrical circuit breakers and so on. The flame retardant rating of nylon before modification is around UL94 V-2. By adding flame retardant to nylon for modification, the flame retardant rating after modification can reach UL94V-0. The processing temperature of nylon is relatively high. For example, the melting temperature of PA6 is 230-280
Flexibility of CPVC Compounds in china
2021 / 09 / 02
CPVC resins require compounding with a variety of additives in order to make them processable into parts. These additives can take a number of forms: - Heat stabilizers - to protect the polymer during high-temperature processing - UV stabilizers - to protect the polymer for outdoor applications - Impact modifiers - to improve durability and strength - Processing aid
2021 / 09 / 02
How PVC, CPVC, and PEX Are Used in the Home? Plumbing pipe is primarily used in three ways in your home, to: Bring water from the local water utility to your house through water service lines. Deliver hot and cold drinking water to your faucets, showers, toilets and appliances through water distribution systems inside your home. Collect and remove water, sewer gases and waste from toilets, showers, sinks and appliances through drain-waste-vent (DWV) systems. Based on these three functions, PVC, CPVC and PEX may work for some applications, but not others. While PVC is excellent for water service lines and DWV applications, it`s not recommended for hot-water distribution systems because it can only withstand temperatures up to 140℉. CPVC and PEX, however, can withstand temperatures up to 200℉. Most water heaters are set to heat water to no more than 140℉. Average Lifespan PVC, CPVC and PEX have been in use in residential plumbing applications for decades. Historical information, as well as independent research studies, indicate that PVC, CPVC and PEX can have a 50+ year life when installed correctly under the proper conditions. Are CPVC, PVC & PEX Safe for Drinking Water? All plastics used in potable water systems must be tested regularly and certified by a third-party certifier as meeting the strict public health requirements of NSF/ANSI/CAN 61. NSF International is an independent, accredited organization that develops public health standards and certification programs to help protect the world`s food, water, consumer products and environment. This testing ensures that drinking water carried by plastic pipe meets the strictest health effects standards. You can look for the NSF (or other third party) certification to rest assured that y
2021 / 09 / 02
In 1960, CPVC (Chlorinated Polyvinyl Chloride) was developed as a tough, reliable plumbing material. Today, millions of homes and businesses around the world trust our products to deliver clean, safe drinking water. Chlorinated Polyvinyl chloride (CPVC) is a specially engineered thermoplastic polymer widely used for the transportation of potable Hot & Cold water in plumbing applications, water in fire sprinklers piping, and chemicals in industrial applications. CPVC is a modified version of PVC. PVC is a higher polar polymer that allows working with a wide range of additives that permit a broad range of physical property characteristics. This allows many different compositions of PVC compounds and allows a great diversity of applications from rigid PVC used in pipes to flexible PVC used in packaging etc. As CPVC is a modified version of PVC, it has a higher level of chlorine than PVC. CPVC becomes an even higher polar polymer, and this polarity permits the use of a wide range of additives that can be incorporated into it. However, due to the higher chlorine content, the use of additives becomes very selective and hence needs more precision.
Flame retardant (HFFR) in glass fiber reinforced PA6
2021 / 08 / 28
PA6 glass fiber reinforced composite material uses glass fiber as a filler, which does not improve the flame resistance of the composite material because of the high flame retardant properties of glass fiber. Easier to burn. The wick effect of PA6 glass fiber reinforced material The so-called "candle wick" effect means that the candle needs a wick to burn. It originated from the research and explanation of the "spontaneous combustion" of the human body in academia. The PA6 material contains amide bonds, which is flammable. When ignited, it melts into droplets and then ignites. The flame is yellow and emits a paste smell similar to that of wool and nails. After the PA6 glass fiber reinforced material is ignited, the resin matrix is first melted, and the filled glass fiber is like the wick of a candlestick. The nearby melted PA6 melt is transported to the flame with the highest temperature to be gasified, which accelerates the cycle of combustion. Therefore, the flame retardancy of PA6 glass fiber reinforced materials is worse than that of pure PA6, especially PA6 reinforced with long glass fibers is more flammable. Traditional flame retardants, such as brominated polystyrene and brominated epoxy resins, can be used for flame retardant treatment of glass fiber reinforced PA6, but the application of such flame retardants is increasingly restricted due to the toxicity of halogen after combustion. , New halogen-free flame retardants, melamine cyanurate, melamine polyphosphate, organic hypophosphite, etc., and their
2021 / 08 / 28
As the name suggests, flame retardants are used to prevent materials from being ignited and to inhibit the spread of fire. They are mainly designed for flame retardant polymer materials. Generally speaking, flame retardants mainly play the role of heat absorption, covering, chain inhibition and asphyxiation of non-combustible gases to achieve flame retardant effects. The material processed with flame retardant can effectively prevent and delay the spread of flame when it is attacked by external fire sources.Flame retardants are divided into two categories: organic flame retardants and inorganic flame retardants. Among them, organic flame retardants include organic phosphorus flame retardants and organic halogen flame retardants, and representative products of organic halogen flame retardants It is an organic bromine flame retardant; inorganic flame retardants are mainly various metal oxides. The classification of flame retardant products is shown in the figure below: Flame retardant classification The three major categories of organic halogen, organic phosphorus and inorganic flame retardants have great differences in performance, flame retardant efficiency and environmental protection, and their application fields are also different. The specific differences of the three types of flame retardants are shown in the following table:Various flame retardant properties Compared with organic halogen flame retardants, organophosphorus flame retardants are characterized by low toxicity, less smoke, low corrosion, good
Flame Retardants: Preventing Fires and Protecting Consumers
2021 / 08 / 28
As consumer products continue to evolve and improve, from lighter and faster computers to energy-saving building materials and construction methods to more fuel-efficient cars, fire safety technology allows these products to comply with domestic safety standards and laws. Flame retardants are materials that can be used in products, made from plastics, textiles, foams or wood, to reduce the chances of a fire starting and to delay the spread of fire once it starts. Flame retardant compounds help mitigate fire danger - Increase plastic`s ignition resistance - Reduce the speed of flame spread - Reduce heat release - Reduce smoke & fume generation Novista Group produce flame retardant APP (ammonium polyphosphate), MCA (melamine cyanurate)and DBDPE (Decabromodiphenyl Ethane), good quality and favorable price. REACH and RoHS certificated. Novista Group supplies DBDPE, BDDP, FR245, SR130 to global market.
HOW FUSION IS PROMOTED BY PROCESS AIDS DURING PVC PROCESSING?
2021 / 08 / 27
Introduction: Process aids (PA) are unique additives that dramatically improve the processability of PVC, at relatively lower concentration. Besides, they are used to achieve processing improvements, higher productivity, and better product quality. Nature of process aids: Process aids are random copolymers, whose major component is methyl methacrylate. Other component may be styrene or acrylonitrile. They are PVC compatible. Process aids are produced by emulsion polymerization. Processing aids have two categories – 1. That promotes fusion and adds rubber elasticity during processing, and 2. That adds lubricity during processing. Processing Aids that promotes fusion – They are acrylic polymer, high molecular weight MMA copolymers (MMA / styrene) or Acrylonitrile styrene. Modified rheology (Viscosity & Elasticity) and morphology (how primary particles arrange – fuse together) of PVC compound during processing is a function of molecular weight of process aid. No alt text provided for this image Selection of molecular weight of process aids depend upon the process: Lower the molecular weight of process aids and softening temperature, greater is the effect on fusion. They are used in rigid extrusion. Medium molecular weight processing aids are used for calendaring process. Medium – high molecular weight processing aids are used in injection moulding as well as thermoformed products. High molecular weight process aids are used in
What Are The Functions Of PVC Processing Aids?
2021 / 08 / 27
PVC processing aids as the name suggests, it is a help PVC processing products, its use can make our processing better. Now let's have a look its functions.Due to the poor ductility of PVC melt, it is easy to cause the melt to break, and the PVC melt to relax, which easily leads to the defects of rough and dull surface.Therefore, in order to improve the melt defects, PVC processing aids are often added in PVC processing. There are three main action modes of processing aids: promoting resin melting, improving melt rheological properties and giving lubricating properties.It plays a lot of roles in our processing. Our processing is inseparable from it, but we still need to choose good products and use them correctly.
New trends in PVC stabilizers for PVC pipe
2021 / 08 / 25
The PVC pipes are currently manufactured using a wide range of stabilizer systems. European market was historically based on Lead stabilizers that have been entirely replaced by COS (Organic-based and/or Calcium-Zinc stabilizer) systems thanks to the Voluntary Commitment of the European Stabilizer Producers Association within the Vinyl 2010–Vinyl Plus initiative. The North American market is historically predominantly using Tin based stabilizers whilst in South America, Lead stabilizers are primarily replaced by COS stabilizers. The Asian market is still mainly using Lead based stabilizers but the use of COS systems is developing in this area. The stabilizer market is currently moving toward the design, manufacture and use of efficient, effective, safe and more environmentally benign chemical products and processes. The toxicological and eco-toxicological profile of the stabilizer has no impact on the final article and on consumers as it is firmly embedded into the polymer matrix. However, it has an impact in the sustainability of the supply chain upstream of finished pipe and has to be taken into account properly.
Three Surprising Benefits of Using Flame Retardant at your House
2021 / 08 / 20
Flame retardants are products in a home that contain chemicals to decrease or eliminate their flammability, and they work in three different ways to inhibit or minimize the severity of a fire. A flame retardant will decrease the presence of oxygen as well as gasses located close to items that are burning. It will inhibit a material`s ability to ignite. Flame retardants also provide a layer of fire resistant material on a product. 1. Fire Prevention Flame retardants are able to provide a number of consumers products with an essential layer of fire protection. According to FireTect, flame retardants are able to stop fires from starting as well as limit their spread and decrease the amount of damage resulting from a fire. Some are designed to work on their own and others act as a synergist. This means they can increase the fire protective abilities of other types of flame retardants. Product manufacturers use a variety of flame retardants. The materials are very different in their chemical composition and physical nature. Various flame retardants react in different ways with fire. This is why so much care is taken to carefully match a flame retardant to the correct material. They all interact at various stages of a fire`s cycle. A home today contains a number electronic devices such as computers, televisions, microwaves and more. This has resulted in high amounts of composite and plastic materials available in a home. It has significantly increased the fire hazard potential. Flame retardants are becoming increasingly essential to minimize fire damage. They have be
Lead stabilizer in PVC production
2021 / 08 / 19
Polyvinyl chloride (PVC), is the most produced plastic polymer in the world after polyethylene and polypropylene. The polymer was discovered in 1872 by Eugen Baumann when he observed that some vinyl chloride in a flask had started to polymerize in a white solid during exposure to the sun. However, the use of PVC in commercial products became more widespread only after the B.F. Goodrich Company had developed a method to plasticze the rigid, brittle polymer by blending PVC with several additives. PVC is a relatively low cost polymer with good chemical and biological resistance and excellent workability. However, the unmodified polymer must always be converted into a compound by blending it with additives such as heat and UV stabilizers, flame retardants, smoke surpressants, plasticizers, processing aids, impact modifiers, thermal modifiers, pigments and fillers. The choice of additives depends on the required functionality, dictated by the respective application. When exposed to heat (> 100o C), HCl is eliminated from the polymer backbone. This HCl triggers a further autocatalytic degradation process, causing rapid discoloration and embrittlement of the PVC. Heat stabilizers can greatly increase the heat stability by various mechanisms, such as scavenging of released HCl molecules. The type of heat stabilizer that is used depends on the application and required heat stability. Lead compounds were among the first stabilizers to be adopted by the PVC industry. Although the use has been decreasing, they still represent nearly 50% of total stabilizers used in PVC applications. A number of different lead compounds are used in PVC formulations in order to provide optimum performance in a particular application.
Characteristics of additives used in the processing of PVC
2021 / 08 / 18
PVC processing requires the use of many additives, thanks to which it is possible to obtain products for different purposes and with different levels of flexibility.PVC is very easily modified and therefore its properties can be freely customized to very different requirements depending on the intended use.Modification is accomplished through the appropriate selection of PVC blend components.A variety of stabilizers, plasticizers, impact and flow modifiers, fillers, and other additives are used to produce PVC plastics. A feature that distinguishes PVC from other thermoplastic materials is the ability to modify its physical and mechanical properties via plasticizing, which has long been a widely used means of modification.Plasticizers are added to PVC in order to achieve the required level of flexibility of the end product.Their main task is to decrease the Tg (the glass transition temperature) of the PVC, which in turn leads to a lowering of the gelling and moulding temperature during processing.This also leads to a permanent improvement of the properties of the polymer, including itsflexibility, impact resistance and resistance to low temperatures.Plasticizers, which this article provides a general overview of, are one of the wide array of additives used in PVC processing. They will be discussed in more detail in subsequent articles.Plasticizers can be classified based on different criteria, such as: - process characteristics (high-temperature, low-temperature plasticizers), - type of chemical (phthalates, phosphates, polyesters etc.), - molecular weight (monomeric, polymeric). The most common plasticizer groups include:
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