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Do you know the basics of PVC foaming regulators?
2022 / 07 / 02
[Summary]: A PVC foaming regulator is actually an acrylic resin based processing aid that has all the basic functions of a PVC processing aid, with the difference compared to conventional processing aids. PVC foaming regulator has higher molecular weight and higher viscosity As a common product, PVC foaming regulator, how much do you know about its basic knowledge? Let's take a look at the basic knowledge of PVC foaming regulators. 1. The chemical composition of PVC foaming regulator. A PVC foaming regulator is actually an acrylic resin based processing aid that has all the basic functions of a PVC processing aid, with the difference compared to conventional processing aids. PVC foaming regulators have higher molecular weight and higher viscosity. 2. The main function of foaming regulator in PVC foam products. Promote the plasticization of PVC, and improve the melt strength of PVC foam materials, prevent bubble coalescence, and obtain a uniform foamed product. Preventing insufficient melt strength results in foam sheet foaming, longitudinal pimples and ensuring good melt flow for good product appearance. 3. A simple and effective method for checking melt strength. To determine whether the melt strength is insufficient, the direct method is to wrap the fingers in the middle roll of the sheet and press the three rolls back, the melt strength is good, and the elasticity can be felt when pressing. If the press is hard to bounce back, it indicates poor melt strength.
Reasons why CPE can be used as an impact modifier
2022 / 07 / 02
As an excellent impact modifier, CPE chlorinated polyethylene thermoplastic resin is used in various aspects, which can greatly improve the impact resistance of rigid PVC impact modifiers and improve processing fluidity. At the same time, CPE chlorinated polyethylene also has good chemical resistance, low temperature performance, high filling performance, excellent weather resistance and compatibility. At present, the most widely used and most economical impact modifier in the PVC pipe profile industry is CPE chlorinated polyethylene resin, which can improve impact resistance and aging properties, especially for large-diameter pressure-resistant liquid pipelines. Chlorinated polyethylene is mostly used to improve the pressure bearing capacity and increase the service life. In addition to that CPE resin acts as an impact modifier. Compatibilizers are used in flame retardant ABS, SAN, HDPE and PP to improve the impact resistance and flame retardant effect of impact modifiers.
What are the effects of ACR processing aids?
2022 / 07 / 02
ACR (Acrylic copolymer) is an acrylate copolymer with a core-shell structure, and is a PVC impact modifier with excellent comprehensive properties. Usually people call the additives used for the purpose of improving the toughness of plastics as impact modifiers, and the additives used for the purpose of improving processing properties are called processing modifiers. ACR is a plastic additive with dual functions of impact resistance modification and processing modification. Due to its core/shell structure, its PVC products have excellent impact resistance, low temperature toughness, compatibility with PVC, weather resistance, Stability, processability, and moderate performance and price ratio, can significantly improve the fluidity and thermal deformation of PVC melt, promote plasticization, and make the product surface smooth and beautiful. It is mainly used in rigid and semi-rigid PVC products, especially chemical building materials, such as profiles, pipes and fittings, plates, foam materials, etc., and is especially suitable for outdoor products. It is a type of impact modifier that is used in large quantities today and will be developed in the future. PVC is one of the plastic varieties with the largest production and consumption. It has many valuable properties, but it also has many shortcomings. Poor toughness is one of its major shortcomings. In order to improve its toughness without damaging its tensile strength and other physical properties, PVC impact modifier came into being.
2022 / 07 / 02
Flame retardants provide an important layer of fire protection by helping to prevent or slow the spread of fire. Flame retardants inhibit or suppress the combustion process. They reduce the amount of heat released from a fire and the potential for a fire to spread. Flame retardants can also reduce the amount of smoke produced by a fire.1 The use of flame retardants is especially important today, as the large volume of electrical and electronic equipment in today`s buildings, coupled with increasingly larger volumes of combustible materials in our homes and offices, can increase the potential for fire hazards. Flame retardants can provide occupants of a home or building additional life-saving time to escape a fire, as well as time for firefighters to respond to a fire. They can also safeguard against property damage and loss associated with the fire itself or from water damage, whether from automated sprinklers or the response from local authorities.
2022 / 07 / 02
According to the National Fire Protection Association, in 2014 the total cost of fire was $328.5 billion, which was 1.9% of U.S. Gross Domestic Product (GDP). Over the years 1980 to 2014, the total cost of fire increased by 50.3%.1 Of course, preventing injury or loss of life is the most important component of fire safety, but we also need to recognize that the costs of fires go well beyond our physical well-being. Property loss can be devastating even if there are no physical victims. Photos and family heirlooms are priceless and often irreplaceable, and losing such precious items and memories associated with the home can be quite emotional. Furthermore, loss of business, retail costs, rebuilding costs, etc., can all add up to the point where a business or individual may not be able to recover, and therefore deeply impactful. Novista Group supplies equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market. PVC Impact Modifier PVC Additives PVC Processing Aid Acrylic Impact Modifier Acrylic Processing Aid PVC Heat Stabilizer PVC Lubricant CPVC Compound CPVC Additives
FLAME RETARDANTS HELP KEEP HOMES SAFE
2022 / 07 / 02
The average home now contains more than 20 electronic products, including televisions, smartphones, computers, gaming systems, and tablets1 . Electronics also include refrigerators, dishwashers, and other appliances. Today`s electronics contain more electrical components than in past years. Electronics, however, as energized devices, present fire threats, which is why manufacturers work so hard to meet protective safety standards. One of the most important benefits of flame retardants in product design is they can stop small ignition events from turning into larger fires - no ignition, no fire. Flame retardants are an essential tool for meeting fire safety standards and keeping people and property safe. Novista Group supplies DBDPE, BDDP, FR245, TTBP,SR130 to global market.
Performance advantages of ordinary PVC Wood Plastic Composites
2022 / 07 / 01
PVC Wood Plastic sheet has better tensile strength, flexural strength, flexural modulus, and impact strength compared with other sheets. The reason is that there is a strong chemical reaction ability between lignin and PVC, that is, between proton donor and acceptor. In addition, the interaction between carbonyl groups on lignin molecules and hydrogen atoms on PVC molecules or between hydroxyl functional groups on lignin molecules and chlorine atoms on PVC molecules is conducive to the improvement of mechanical properties. At present, the application of wood-based panels is mainly in the interior decoration and furniture industry. The wood-based panels used are mainly plates with urea-formaldehyde resin as the adhesive ( Such as particleboard, medium-density fiberboard, plywood, etc.). Compared with these traditional wood-based panels, wood-plastic panels mainly have the following advantages and characteristics: Firstly, Urea-formaldehyde resin is not used in the production of wood-plastic composites. There is no release of formaldehyde adhesives. This formaldehyde-free product is in line with national environmental protection policy. They are really environmentally friendly materials for human health, which is incomparable to ordinary wood-based panels.
What is PVC wood-plastic foam board, and what are the application fields of wood plastic composite?
2022 / 07 / 01
PVC wood plastic foam board is a PVC core layer foam board with continuous hard skin and closed cell structure in the core, which is chemically foamed by the [Celuka" method. It is a new structural plate with uniform thickness made of various mixed PVC raw materials, wood fibers, and functional additives through a special wood plastic extruder at a specific temperature and pressure. Its skin is shaped by the sudden cooling of the external mold to form a new plate with non-foaming skin and foaming structure in the core layer. Wood-plastic composites have a wide range of applications. Wood-plastic composites can be used to replace wood or wood materials. Building structural materials: indoor and outdoor planks, fences, building templates, moisture-proof partitions, stair boards, handrails, door and window frames, water buildings, road boards, etc PVC wood plastic foam board has been successfully used as building formwork in urbanization projects, square tunnels, and other projects. Automobile manufacturing: door trim panel, bottom plate, seatback, instrument panel, armrest, seat, base, top plate, etc.
PVC furniture board and its prospect-1
2022 / 07 / 01
PVC furniture board has the characteristics of anti-corrosion, moisture-proof, mildew-proof, low water absorption, drilling, sawing, routing, easy to thermoforming & hot bending, and so on. It is widely used in furniture, cabinet, bath cabinet, exhibition frame board, box substrates, indoor and outdoor decorations, building materials, chemical industry, and other fields. PVC furniture board refers to the skin foaming board with PVC as the primary raw material, which can be made into PVC products according to the design and processing of wood furniture. The surface can be printed, embossed, laminated, with features of flame-resistant, moisture-proof, acid and alkali resistance, and long application life. Product performance and advantages: 1. waterproof, flame retardant, acid and alkali resistant, mothproof, lightweight, heat preservation, sound insulation, shock absorption 2. It has the same processing as wood, and its processing performance is far better than wood
PVC furniture board and its prospect-2
2022 / 07 / 01
The prospect of PVC furniture board At present, the PVC industry is developing rapidly all over the world with broad prospects. All countries are optimistic about the potential of PVC and its benefits to the ecological environment. PVC is proving to the world that its role and status can not be replaced by any other products with its superior and unique properties. Social development needs it and environmental protection needs it. It is the inevitable trend of the progress of human civilization. At a time when the PVC industry is booming all over the world, however, it is a pity that the market share of PVC furniture materials (including cabinets) in some countries is less than 10%. Many consumers have not even heard of PVC as a furniture material, let alone know what PVC is. When German people have treated PVC as a high-grade, non-toxic, and pollution-free environmental protection material, why market share in some countries is still so small? Of course, there is the problem of consumption level, but it is mainly related to our consumers` lack of correct understanding of PVC. It hindered the large-scale PVC furniture production. I believe that through the joint efforts of our companions and t
2022 / 06 / 25
PE WaxPolyethylene wax or PE Wax is a low molecular weight polyethylene polymer used for enhancing the process parameters and properties of the finished products. It is used in diverse applications across the plastic industry.Features:High softening pointExcellent thermal stabilityHigh chemical resistanceProvides perfect lubricationHas high compatibility with wax varieties.Benefits:Acts as external lubricant for PVC processing
OPE Wax introduction of future
2022 / 06 / 25
OPE WaxOxidized Polyethylene Wax (OPE Wax) is widely used in U-PVC and CPVC applications.Features:OPE Wax is used as processing auxiliaries for PVC shapes, pipes and plates to increase the surface smoothness of the processed products with an amount of 0.3-0.5%.Benefits:Improves thermal stability
2022 / 06 / 25
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 from an electrical device?
2022 / 06 / 25
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.
Not all flame retardants are the same
2022 / 06 / 25
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, bromine, fluorine) Tetrabromobisphenol A (TBBPA)
Lubricants Manufacturer in China future
2022 / 06 / 25
Lubricants are an integral part of PVC formulation. Novista manufactures both internal and external lubricants. The internal lubricants are used for the reduction of the friction between the molecules of PVC by lowering the melt viscosity. The external lubricants help in the metal release effect, mould release effect, reduction in the friction, and in the delay of fusion. internal lubricants help in the conversion of mechanical energy into heat. External lubricants provide an excellent surface finish by giving a shining end product.
What is Foam Board and PVC Foam Board?-1
2022 / 06 / 24
People are often confused by some of the names and terms of the rigid substrate in the signage industry. Two of the more common rigid substrates utilized in signage are foam board and PVC foam board. But, there are some misconceptions and misunderstandings about them. Here, we`ll try to clarify some of their information that you might have puzzled over, and explain some of the primary advantages and disadvantages to each. Foam Board : Interior Solution Foam board is used for a wide range of applications, including interior signage, point-of-purchase displays, posters, presentations, and in model settings. Typically consisting of an extruded polystyrene foam core with a paper liner on both sides, foam board is very lightweight but relatively strong. It can be propped against an easel without any support. It is a sturdy alternative to standard posterboard. This cost effective substrate is very suitable for digital direct printing, whether using UV inks, eco-solvent inks, solvent inks, aqueous inks. And it`s easy to cut with a razor-type knife or a digital cutting machine. However, because of foam board`s exterior paper liner, it should mainly be used only for indoor signage – it won`t perform well to rain or other inclement weather. Plus, because it`s lightweight, it requires extra anchoring if utilized outdoors. Foam board won`t withstand a lot of physical damage – it`s relatively easy to bend or pierced with thumbtacks, so you should be careful in how and where you display it. Because foam board is lightweight, it`s easily displayed. If you don`t wish to prop it on a freestanding easel, you`ll add an easel back within the production process. Other alternatives include hook-and-loop patches like Velcro, or adhesives like 3M Command Strips.
The primary raw materials of PVC foam board and their functions -1
2022 / 06 / 24
The primary raw materials of PVC foam board and their functionsPVC resin powderIt is the primary raw material, foaming base material, producing PVC foamed sheet generally adopts Model SG-8 PVC resin. When processing, the gelatinization speed is fast, the processing temperature is relatively low, the product quality is stable, and the density is easy to control. In order to improve product quality and strictly control the fluctuation of product density and thickness, SG-8 PVC resin is often used in the production of free foam and Celuka foam PVC sheets.PVC stabilizerIn order to fully plasticize the material during the process of PVC foam board, the material is often at high temperatures. In addition, the foaming agent also produces decomposition heat in the process of decomposition. These factors require that the stabilizer have sufficient thermal stability to ensure the quality of products and long-term stable production.Foaming regulatorIt is made of methyl methacrylate, ethyl acrylate, butyl acrylate, and styrene. Its molecular structure is a core-shell structure. As a processing aid in the formulation system, it can effectively reduce the plasticizing temperature, promote the plasticizing effect, improve the plasticizing efficiency, improve the melt strength, reduce the melt pulsation, prevent the melt fracture, and significantly improve the surface smoothness of products.
The primary raw materials of PVC foam board and their functions -2
2022 / 06 / 24
The selection principle of the foaming regulator includes plasticizing speed, melt strength, and melt fluidity. Because of different process conditions, foaming regulator models should be selected according to the various product property characteristics, such as foamed sheet, thick foamed sheet, thin foamed sheet, wood plastic foamed sheet, etc. They can ensure the uniformity of the melt and good board surface quality. Besides that, we need to choose good quality internal and external lubricants and add enough heat stabilizers to the formula. Foaming agent The foaming agent is the material that makes the object material into a cell structure. It can be divided into the chemical foaming agent, physical foaming agent, and surfactant. It is mainly used to control the density and measurement of PVC foaming boards. Filler In the formula system, the general dosage of light calcium carbonate is 10 ~ 40 phr. Filler can not only be used as a foaming nucleating agent but also reduce the material cost. However, excessive dosage of light calcium carbonate will make the cell uniformity worse, then affect the appearance and product quality. It finally makes the product density difficult to control, increases the total cost, and reduces the product hardness. Pigment It is used for coloring the board, mainly in white, red, yellow, blue, green, black, gray, etc.
What is Foam Board and PVC Foam Board? -2
2022 / 06 / 24
Another advantage of foam board being lightweight: It`s convenient to transportation – which may are available handy if you`re shipping signage to events, conferences, trade shows, etc. And it`s economical – so if you need a large quantity, you won`t spend a lot of money. PVC Foam Board: Interior and Exterior Solution If you would like a sturdier alternative to foam board – and one which will perform well in outdoor and indoor – you would like look no further than PVC foam board. Sometimes called expanded PVC board (foamed PVC, Sintra board), this substrate provides better sturdiness. PVC foam board comes in a wide range of thickness, density and color. It is commonly utilized in the sign and graphic industries because it is lightweight, printable (digital and screen), has excellent screw retention, and is in a position to be die-cut. Foam PVC has superior UV performance and fire resistance which allows it to be used for both indoor and outdoor applications. PVC foam board is durable – it has good resistance to dents, scratches. It also holds up quite well under extreme weather. PVC foam board is resistant to chemicals, which comes in handy for simple cleaning. For outdoor applications, thicker is better. Like foam board, PVC foam board are often printed onto directly with digital print technologies, including UV inks, eco-solvent inks, solvent inks, aqueous inks, etc. And it`s very machinable: P
Production principle and process flow of PVC foam board
2022 / 06 / 24
PVC foam board, Known as Chevron board or Andy board, or referred to as Sintra board, Foamex, PVC foam as well, PVC foam board comprises the chemical composition of Poly Vinyl Chloride, light calcium carbonate, foaming agents, etc. It can be used for both indoor and outdoor applications. PVC foam board is manufactured through a series of production processes. Next, we will introduce the PVC foam board`s production principle and process flow. Raw material mixing includes two steps: cold mixing and hot mixing. After weighing the PVC resin and various auxiliary materials, put them into the hot mixing pot to stir evenly and automatically put them into the cold mixing pot to mix and cool. After cold mixing, the materials are sieved by the screening machine and stored. The powdered material enters the extruder from the hopper on the extrusion line, with the continuous forward movement and the temperature change in the extrusion process. The material slowly changes from solid to viscous flow state, and the foaming agent decomposes. Due to the high pressure in the extruder and die, the gas released from the decomposition of the foaming agent dissolves into the PVC melt under high pressure. After PVC melt is extruded from the die, the gas dissolved in the melt expands and foams rapidly due to the sudden loss of pressure of the melt. It immediately enters the calibration units for cooling and calibrating and then enters the water tank for further cooling. Finally, the product is cut into a certain length after passing through the haul-off machine. Production process flow: In China, PVC foam board is mainly produced by domestic PVC skinned foam board production lines. Its production process is as follows: Raw material allocation – mixing by high-speed mixer – extrusion by extruder – foaming – cooling a
2022 / 06 / 18
Fire hazard is a general term that is a combination of different factors, including ignitability, amount of heat release, ease of extinction, weight-loss, flame spread, smoke index, and toxicity. Modern life is surrounded by a wide variety of readily combustible materials, such as, cellulosic materials and man-made polymers. Synthetic polymers alone may not be a fire hazard, but they are factors that contribute to ignition and the rapid spread of fire in vehicles, residential buildings, and other facilities. According to the U.S. Fire Administration annual report, during 2017 in the U.S. alone there were more than 1 million residential fires, injuring 14,000 people, and killing more than 3000 individuals along with billions of dollars financial loss. Unfortunately, statistics did not change much in 2018, where public fire departments responded to 1,318,500 fires, only 1000 fewer than 2017.11. Novista Group supplies APP, MCA, aluminium hydroxide,magnesium hydroxide to global market.
The importance of flame retardants
2022 / 06 / 18
In order to meet fire safety requirements and diminish fire hazards, different solutions have been developed. Various chemical and physical strategies have evolved to prevent polymers from burning or to lower the heat release amount. Recently, flame retardants (FRs) have been widely recognized as fire safety tools capable of lowering the number of fire injuries and death. The term flame retardant refers to a diverse group of chemicals that are added to synthesis materials, such as, plastics to prevent or slow down the combustion process. Adding flame retardants to polymers, fibers, and papers are an expanding trend that can protect the final product from burning. Therefore, it is clear that flame retardants are an important part of polymer composite formulations. Role of FRs is significant for those cases that polymers have a high chance of being exposed to the ignition source (like in electronics and electrical applications), and those where polymers can ignite and spread fire quickly (like in residential and industrial buildings, limiting evacuation, and transportation) Novista Group supplies equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market.
2022 / 06 / 18
According to their specific mechanisms, fire retardants interrupt polymer pyrolysis in one or more steps. Three of the most common flame retardancy mechanisms are described in previous studies. Gas phase inhibition mechanism, where the FRs react with the polymer under combustion in the gas phase with hydroxyl or oxygen agents at the molecular level and extinguish the combustion. Halogenated and phosphorous FRs are common in this category. Hydrated minerals (halogen free) decompose in an endothermic reaction when exposed to fire, using a cooling mechanism. They release water molecules that cool down the combustion environment of polymers. Char forming polymers (e.g. cellulose or carbon family FRs) react to combustion in a solid phase. these FRs crosslink to the polymer matrix in elevated temperatures and create a barrier layer that hinders the heat transfer and release of additional gasses. They react to form a porous carbonaceous 3D-char layer that insulate the polymer surface and slow down the pyrolysis. Intumescent FRs, such as, melamine compounds and phosphorous compounds are from this category. Novista Group supplies DBDPE, BDDP, FR245, TTBP,SR130 to global market.
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Mr. Ron Han
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Fax:86-536-8206750
Mobile Phone:+8615336365800
Email:manager.han@novistagroup.com
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.