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2023 / 03 / 25
CPVC (Chlorinated Polyvinyl Chloride) compound is a thermoplastic material that is used in a variety of applications, including piping systems, electrical insulation, and industrial coatings. It is a highly versatile material that offers excellent chemical resistance, high temperature resistance, and good mechanical properties. To produce high-quality CPVC compound, attention must be paid to several key factors. These include: 1. Raw Materials: The quality of the raw materials used in the production of CPVC compound is critical. High-quality resins, stabilizers, and other additives must be used to ensure that the final product meets the required specifications. 2. Processing Conditions: The processing conditions used during the production of CPVC compound are also important. The temperature, pressure, and time of processing must be carefully controlled to ensure that the material is properly melted, mixed, and cooled. 3. Quality Control: Quality control measures must be in place to ensure that the final product meets the required specifications. This includes testing the material for chemical resistance, mechanical properties, and oth
2023 / 03 / 25
1. Application: The first step in choosing PVC compound is to determine the intended application. Different applications require different properties, such as flexibility, durability, chemical resistance, and UV resistance. For example, PVC compounds used in electrical cables require high electrical insulation properties. 2. Type of PVC: There are various types of PVC compounds, such as rigid PVC, flexible PVC, and semi-rigid PVC. Each type has its own characteristics and properties. For instance, rigid PVC is used for building materials, while flexible PVC is used for medical tubing and inflatable products. 3. Additives: PVC compounds can be customized by adding various additives, such as plasticizers, stabilizers, colorants, and fillers. These additives can enhance the properties of the PVC compound, such as increasing flexibility or improving weather resistance. 4. Processing method: The processing method used for the PVC compound can also affect the choice of the compound. For example, extrusion and injection molding require different properties and characteristics. 5. Regulatory compliance: PVC compounds used in certain applicati
Analysis of three kinds of flame retardants
2023 / 03 / 25
1) Organic halogen flame retardant Organic halogenated flame retardants refer to organic flame retardants with halogen as the main flame retardant components. Due to their high flame retardant efficiency, low consumption and small impact on the properties of materials, they have been widely used in the flame retardant market since the 1960s. Brominated flame retardants are the representative of organic halogenated flame retardants. Among all the sales of organic halogenated flame retardants, the sales volume of brominated flame retardants has been ranked first. In particular, about 70% of the flame retardants used in electronic and electrical products are brominated flame retardants. The representative products of brominated flame retardants are tetrabromobisphenol A and decabromodiphenylethane, which account for about 50% of the total production of brominated flame retardants. However, the disadvantages of brominated flame retardants in environmental protection and safety are also increasingly apparent. Because most of the flame retardant mechanisms of brominated flame retardants are gas phase flame retardants, a lot of smoke, corrosive gases and toxic gases will be produced when they are used as flame retardants, Some brominated flame retardants will release hydrogen halide gas and dioxins (polybrominated dibenzo-dioxins and polybrominated dibenzofuran) which are harmful to human body and environment during the combustion process. Most of the
Common polypropylene(PP)flame retardant systems and application characteristics
2023 / 03 / 25
As a common modified material, flame retardant polypropylene is mainly used in small household appliances, electronic appliances, automobiles and other fields. It has the advantages of high cost performance, large room for performance adjustment, and easy molding. At present, there are many researches and applications on flame retardant polypropylene, but the common flame retardant systems on the market are nothing more than the following four categories: (1) PP resin + bromine + antimony Novista@B044+Novista@ATO (2) PP resin + expanded carbon flame retardant system (APP system) Novista@PNPO (3) PP resin + new type of expanded carbon flame retardant system (non-APP system) Novista@PNPO-G1 (4) PP resin + phosphorus-nitrogen-bromine high-efficiency flame retardant (V2 system) Novista@EFBPP101
What is halogen free? Are halogen-free flame retardants completely halogen-free?
2023 / 03 / 25
1. What is the concept of halogen-free? Halogens are listed in Group VIIA of the periodic table and belong to non-metallic elements, including five elements: Fluorine, Chlorine, Bromine, Iodine, and Astatine. Halogen often refers to the four elements of fluorine, chlorine, bromine and iodine, which usually exist in the form of organic compounds in products, especially in polymer materials. 2. The origin of the halogen-free concept. Halogen Free or Non-Halogen, according to the requirements of regulations IEC 61249-2-21: bromine and chlorine content are less than 900ppm respectively, and the sum of bromine and chlorine content is less than 1500ppm, it is halogen-free. Therefore, halogen-free is not really halogen-free, but the halogen content in the product is below a certain value. 3. Why put forward the concept of halogen-free? Halogens are often used as flame retardants in electronic components and materials, product casings, plastics, etc. Halogen flame retardants are almost difficult to recycle and release harmful substances during combustion and heating, threatening human health, the environment and future generations. Therefore, corresponding halogen restriction requirements have been formed in various countr
2023 / 03 / 18
Flame retardants help prevent and slow fires, protect property and save lives. They are an important tool in the overall [tool box" of fire safety measures that help reduce fire risk and meet fire safety standards. Flame retardants can provide an important layer of fire protection by: · Preventing and delaying ignition; · Slowing the combustion process; and · Making a material self-extinguishing. A foremost benefit of flame retardants in product design is they can stop small ignition events from turning into larger fires. Have you ever noticed sparks, overheating, melting, or smoke f
2023 / 03 / 18
Flame retardants are derived from naturally-sourced elements and are incorporated into materials such as plastics, textiles, foams, and paints. Flame retardants can be liquids or solids. They can be chemically transformed to create a new fire resistant material (reactive) or physically incorporated into a material (additive). Reactive flame retardants are incorporated into the polymer or material via a chemical reaction. Once reacted, reactive flame retardants cease to exist as separate chemical entities because they have been transformed into a new fire resistant material. They are engineered to become a new fire protected material, and therefore are a permanent part of the material itself. Additive flame retardants are incorporated into and encased by the material they are designed to protect by physical mixing. Novista Group supplies equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market.
Not all flame retardants are the same
2023 / 03 / 18
Manufacturers include specific flame retardants in their products based on the product`s attributes, properties, use, and potential ignition threats. Product manufacturers use flame retardants to protect materials from igniting. The term [flame retardant" refers to a function, not a distinct family of chemicals. Many different chemistries, with different properties and molecular structures, act as flame retardants. A variety of flame retardants are necessary because materials and products that need to be made fire-resistant are chemically and physically different and have different uses and performance requirements. Flame retardants are generally classified by their chemical makeup. The most common flame retardant classes Halogenated (a compound that includes a halogen, e.g., chlorine,
Introduction of NOVISA's PVC Heat Stabilizers-1
2023 / 03 / 17
NOVISTA is one leading PVC heat stabilizer manufacturers from China, involved in the production of PVC heat stabilizers of premium quality. Starting from a single reactor the company now has grown multi-fold to be the leading PVC additives manufacturer. One of the key players in the PVC additives industry, we have been the preferred PVC heat stabilizer suppliers in the world, supplying high performance stabilizers to a large number of PVC manufacturing companies across the world. We are committed to providing our customers best quality products at competitive prices. With fast and reliable supplies, we have grown into the most reliable brand in the industry, established trust based relations with leading PVC processors worldwide, and have become a leading PVC heat stabilizers suppliers and exporters in the world. THE PRODUCT - PVC HEAT STABILIZERS We provide PVC Heat Stabilizers (one packs - lead based & calcium-zinc non-toxic) in powder and flakes form. In PVC Processing (extrusion, injection molding, etc.), the polymer is subjected to a high temperature which can lead to burning (degradation or breaking of polymer chains). Heat stabilizers are lead compounds that are added to prevent burn
Introduction of NOVISA's PVC Heat Stabilizers-2
2023 / 03 / 17
Conventionally, a combination of three chemicals, TBLS, DBLS, and LS (Tribasic lead sulphate, dibasic Lead stearate, and Lead stearate) were used as heat stabilizers along with Calcium Stearate as a co-stabilizer. NOVISTA Group is the leading manufacture of these single stabilizers in the highest purity and performance. Nowadays, one–pack stabilizer is used in place of the three chemicals as a heat stabilizer. It is made by in-situ reaction of lead oxide with stearic acid along with many other components like waxes, antioxidants, inorganic stabilizers etc, which were not there in the conventional system of single stabilizers above. Its performance depends on two things: The lead oxide content which provides stabilization by deactivating the chloride radical formed during heated melt processing of PVC during extrusion and by providing lubrication so that the residence time inside the screw extruder (heated zone) is reduced, so less deterioration is there. NOVISTA Group
Introduction of NOVISA's PVC Heat Stabilizers-3
2023 / 03 / 17
WHY CHOOSE US AS YOUR PVC HEAT STABILIZERS SUPPLIERS? NOVISTA has been a leading name as PVC heat stabilizer manufacturers in the world, known for providing products that are backed by a superior quality guarantee and that conform to international standards. We have a fully-equipped, in-house laboratory with trained and experienced specialists who work with customers to develop products as per specific needs and requirements. Our PVC laboratory has two roll mixing mills, Rheometers, moulding press for making sheet, Congo red testers, VR/ IR testers, pilot extrusion lines etc... The application lab helps us in developing value added products and providing technical support to our customers. We are a company that thrives on providing technical support to cater the customer needs. We make sure that our products pass a series of quality control checks before they reach our customers. Our stringent quality checks procedures are inspected regularly in order to maintain the highest international standards. Our R&D constantly strives hard to produce only the best quality products.
How to choose titanium dioxide?
2023 / 03 / 11
How to choose titanium dioxide? First, the color Color is an important technical indicator for marking pigments. Titanium dioxide is known as "the king of white pigments", and the color index of titanium dioxide is whiteness. Even titanium dioxide with the same chemical composition will have different colors due to differences in process routes, raw materials, equipment, and technical levels. Although the color light depends on the chemical composition, the more important and often decisive factor is its color. Particle shape, size, particle size distribution, crystal form, impurity content, etc. Second, the hiding power The optical nature of opacity results from the difference in the refractive index of the pigment and the medium in which it exists. The refractive index of rutile type titanium dioxide is 2.71, and that of anatase type is 2.55, which is the white pigment with the highest hiding power. The covering effect is mainly due to the scattering caused by titanium dioxide, or the absorption caused by the presence of colored substances, or when the intensity of incident light is reduced due to the above two reasons, the covering phenomenon occurs. Therefore, the main reason for determining the hiding power of titanium dioxide is not only the chemical composition and crystal form, but also the particle shape, particle size and particle size distribution of titanium dioxide. Third, coloring power Tinting strength is an important characteristic index of titanium dioxide, which is the ability of the mixture to display its own pigment after mixing titanium dioxide with another pigment. That is to say, for a white pigment, after it is mixed with a dark pigment, the lighter the color of the mixture, the stronger its tinting power (color reduction power). Fourth, oil absorption Oil absorption is also one of the important pigment properties of titaniu
2023 / 03 / 11
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 t
Flame Retardants: Preventing Fires and Protecting Consumers
2023 / 03 / 11
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 equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market.
2023 / 03 / 11
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.
2023 / 03 / 11
Titanium dioxide is divided into two types: rutile type and anatase type. According to international practice, the rutile type is represented by the first letter R of its English Rutile, which is called R type; the anatase type is represented by the first letter A of its English Anatase, and is called A type. The rutile type and anatase type without post-treatment are called R1 and A1 types, respectively; the post-treated rutile type and anatase type are called R2, R3, and A2 types, respectively. The anatase titanium dioxide used for plastics is called AP type; the anatase titanium dioxide used for chemical fibers is called AH type. Application of titanium dioxide Titanium dioxide is not only used as a colorant in the rubber industry, but also has the functions of reinforcement, anti-aging and filling. Adding titanium dioxide to white and colored rubber products, under sunlight, it is resistant to sunlight, does not crack, does not change color, has high elongation and acid and alkali resistance. Titanium dioxide for rubber is mainly used in automobile tires, rubber shoes, rubber flooring, gloves, sports equipment, etc., and generally anatase is the main type. However, for the production of automobile tires, a certain amount of rutile products are often added to enhance the anti-ozone and anti-ultraviolet capabilities. Titanium dioxide is also widely used in cosmetics. Because titanium dioxide is non-toxic and far superior to lead white, almost all kinds of fragrance powder use titanium dioxide to replace lead white and zinc white.
2023 / 03 / 04
CPVC compound is a type of plastic material that is used in the manufacturing of pipes and other plumbing fixtures. It is made up of a blend of polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC). CPVC is more resistant to heat than regular PVC, making it ideal for hot water applications. It is also more resistant to chemicals, making it a popular choice for industrial applications.
2023 / 03 / 04
The China CPVC compound market is expected to witness a significant growth over the forecast period. It is projected to grow at a CAGR of 8.4% from 2020 to 2025. The growth of the CPVC compound market in China is mainly driven by the increasing demand for CPVC compounds from various end-use industries such as construction, automotive, and electrical & electronics. The increasing demand for CPVC compounds from these industries is attributed to their excellent properties such as high temperature and chemical resistance, low thermal expansion, and flame retardancy. Moreover, the growing investments in the construction sector, the increasing demand for electric vehicles, and the increasing demand for electrical & electronics products are some of the other factors driving the growth of the CPVC compound market in China. In terms of region, the market is segmented into East China, South China, and North China. East China is expected to be the largest market for CPVC compounds in China, due to the presence of major end-use industries such as construction, automotive, and electrical & electronics. Moreover, the presence of major CPVC compound manufacturers in East China is also driving the growth of the market in this region. The major players operating in the China CPVC compound market are BASF SE, L
Do flame retardants actually stop the spread of fires?
2023 / 03 / 04
To answer that question, let`s use flame retardant furniture as an example. The number of upholstered furniture fires in the home environment dropped by 84 percent from 1980, the first year that data were available, to 2009, according to NFPA. While several factors have contributed to that sharp decline, the timeframe coincides with the use of flame retardants to meet flammability standards imposed in California in 1976. In the absence of a national requirement, the California standards were broadly followed by the US furniture industry over the following 20 years. Similar findings have been reported in the United Kingdom where flammability standards also are in place for furniture. Despite this substantial progress, upholstered furniture remains a significant contributor to home fire deaths, according to NFPA. During the period from 2005 to 2009, while upholstered furniture was the item first ignited in 2 percent of reported home fires, these fires resulted in 19 percent of the home fire deaths. Looking at U.S. home fires that originated with upholstered furniture between 2005 and 2009, the NFPA reports, [Together, candles, matches and lighters were involved in 21 percent of the fires and 12 percent of th
Several advantages of flame retardant masterbatch
2023 / 03 / 04
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
four principles of halogen-free flame retardants
2023 / 03 / 04
Halogen free flame retardants have low smoke emission and no toxic or corrosive gases. Halogen free flame retardant additives are mainly phosphorus compounds and metal hydroxides. These two compounds do not volatilize and do not produce corrosive gases when burning. They are known as nuisance free flame retardants. The following is a brief introduction to the flame retardant principle of halogen free flame retardants. 1. endothermic action: any burning heat released in a shorter time is limited. If a portion of the heat released from the fire source is absorbed in a shorter time, the flame temperature will decrease, radiating to the burning surface and acting on the heat of cracking the combustible molecules that have been vaporized into free radicals, and the combustion reaction will be reduced. To a certain degree of inhibition. Under the high temperature conditions, the flame retardant has a strong endothermic reaction, absorbs some of the heat released from the combustion, reduces the temperature of the combustible surface, effectively inhibits the formation of combustible gas and prevents the spread of the combustion. The flame retardant mechanism of Al (OH) 3 flame retardant is to increase the heat capacity of the polymer, so that it absorbs more heat before it reaches the thermal decomposition temperature, thus improving its flame retardancy. These flame retardants give full play to their characteristics of absorbing large amounts of heat when combined with water vapor and improve their own flame retardancy. 2. coverage: after adding flame retardant in combustible materials, the flame retardant can form glass or stable foam cover layer at high temperature, isolate oxygen, heat insulation, prevent ox
2023 / 03 / 04
CPVC Compound is a type of plastic that is used in a wide variety of applications. It is a thermoplastic, which means it can be easily melted and formed into different shapes. CPVC compound is made from a combination of chlorinated polyvinyl chloride and other additives. This type of plastic is highly durable, corrosion resistant, and is able to withstand high temperatures. It is often used in plumbing, electrical, and industrial applications. CPVC compound is a great choice for a variety of applications. It is often used in the manufacture of pipes and fittings, as it is able to resist corrosion and high temperatures. It is also used in the electrical industry, as it is a great insulator and is able to withstand extreme temperatures. In addition, CPVC compound is often used in the production of medical equipment, as it is non-toxic and does not leach any harmful chemicals. CPVC compound is also used in the production of many consumer products. It is often used in the manufacture of shower curtains, as it is able to resist mildew and mold growth. It is also used in the production of food packaging and containers, as it is able to resist chemicals and other contaminants. CPVC compound is easy to work with and can be molded into almost any shape. It is also relatively inexpensive and is available in a wide variety of colors. This type of plastic is also very durable and can withstand extreme temperatures. Overall, CPVC compound is a great choice for a variety of applications. It is durable, corrosion resistant, and able to withstand high temperatures. It is also relatively inexpensive and is available in a wide variety of colors. If you are looking for a durable and reliable plastic for your project, then CPVC compound is definitely worth considering.
Why is Calcium Stearate So Significant in PVC? -3
2023 / 02 / 25
Why Choose NOVISTA for Calcium Stearate? NOVISTA has been one leading exporter of integrated PVC & different polymer additives. We have a strong manufacturing and deep research base in PVC additives, including PVC impact modifiers, processing aids, Lubricants, stabilizers... And we can offer you customized PVC additives and CPVC compounds in high quantity as and when required by the customers. Conclusion Above, we have explained the various characteristics and applications of calcium stearate, including Calcium Stearate Uses in PVC. In case you still have any queries regarding calcium stearate PVC Stabilizer, feel free to contact us.
Why is Calcium Stearate So Significant in PVC? -2
2023 / 02 / 25
Calcium Stearate Uses in PVC The chief uses of Calcium Stearate in PVC include the following: Calcium Stearate curtails friction between PVC grains during refining when used as an internal lubricant. It is generally used in melt-processed or plasticized PVC. It is crucial as an external lubricant in rigid PVC, particularly in the absence of plasticizers. Apart from these, calcium stearate has several other vital applications in various industries, which are listed in the section below. Calcium Stearate Applications The different applications of Calcium Stearate are listed below:
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