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2022 / 07 / 30
Do you remember as a kid shoving play dough into the red and yellow toy to squeeze out a [rope" shaped like a star or a flower? Well, that defines Extrusion: a process used to create objects of a fixed cross-sectional profile. Commonly extruded materials include metals, polymers, ceramics, concrete, modeling clay, and foods, such as macaroni and cheese puffs. Here we will focus on the high output use of plastic extrusion to form plastic parts that we use on an everyday basis and for industrial and medical processes. Plastics Extrusion in advanced manufacturing is not simply choosing different colors to push through several basic shapes- Custom Plastic Extrusion can combine the properties of advanced materials to enable specific performance characteristics for plastic tubing or plastic parts, and can form multi-lumen tubing or complex profiles to fit a wide range of applications for commercial, industrial, food processing, filtration, automotive, military and medical/pharmaceutical industries. The extrusion process starts by feeding plastic material (pellets, granules, flakes or powders) from a hopper into t
HOW FUSION IS PROMOTED BY PROCESS AIDS?
2022 / 07 / 29
ntroduction: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, and2. 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.
2022 / 07 / 29
AIM – Acrylic Impact Modifiers Acrylic impact modifiers (AIM) with varying ranges in gloss and impact capability are available, including one-packs with process aids. We stock many grades of acrylic impact modifiers depending on your exact needs. Under the right circumstances it is also possible to customize a new product for a customer based on their needs. Acrylic impact modifiers for clear applications are available as well. CPE – Chlorinated Polyethylene Rigid grade chlorinated polyethylene impact modifiers (CPE) products produced with unique practices to provide superior performance at competitive pricing. Traditionally, chlorinated polyethylene impact modifiers are used in non-weatherable applications. In some instances, CPE can serve the dual function of a process aid as well as an impact modifier. Multiple chlorinated polyethylene impact modifier products are available, some with extremely high elongation for niche applications. MBS – Methyl Methacrylate Butadiene Styrene Polymer Methyl Methacrylate Butadiene Styrene polymer (MBS) impact modifiers, provide superb cold temperature impacts for extrusion, injection molding and calendering. Due to its composition, a MBS impact modifier is used in non-weatherable applications. Both clear and opaque versions of MBS impact modifiers are available.
2022 / 07 / 29
Specialized processing techniques,Weifang we supply the industry leading ultra-high molecular weight plastic processing aids, PVC process aids, acrylic processing aids, and more. We offer traditional acrylic and plastic process aids to complement the UHMW, LMW, and MMW products.LMW: These lower molecular weight process aids primarily provide metal release and are used in all PVC manufacturing processes for clear and opaque products. Grades with FDA approval are also available.MMW: These process aids can aid in fusion, metal release and melt strength. They are available in varying molecular weight ranges. Can be used in all PVC manufacturing processes for clear and opaque products. Grades with FDA approval are also available.UHMW: Ultra high molecular weight process aid products that provide excellent melt strength as well as significant usage reductions. These are products are targeted for cellular PVC applications. PVC Impact Modifier PVC Additives PVC Processing Aid Acrylic Impact Modifier Acrylic Processing Aid PVC Heat Stabilizer PVC Lubricant CPVC Compound CPVC Additives
Flame retardant is indispensable
2022 / 07 / 23
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 APP, MCA, aluminium hydroxide,magnesium hydroxide to global market.
2022 / 07 / 23
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 equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market.
Flammability characterization methods
2022 / 07 / 23
Flame retardancy process can be characterized either in gas phase, by investigating present pyrolysis species, or in solid phase, by studying the morphology and composition of the char layer. There are numerous macro and micro fire characterization methods. Limiting oxygen index (LOI), UL-94, cone calorimetry, microscale calorimetry, and thermogravimetric analysis (TGA) are of the most common fire characterization methods. LOI is one of the primary methods that has been used for many years to investigate the relative flammability of materials. Material with LOI less than 21% can burn easily whereas materials with LOI greater than 21% exhibit reduced flammability after removal from ignition source. LOI requires a cost-effective setup and small sample size. However, due to the high oxygen index simulation and small scale input heat, it is not very suitable for determining the real extent of fire performance. UL-94 tests have been considered for measuring burning rate and characteristics of plastics. UL94 vertical test is widely used for determination of ignitability and flame spread rate of plastic materials. In this test, the specimen is burnt using specific flame conditions for a certain time period. The time required for the fire to be extinguished (after-flame removal) is an indication of fire retardancy properties of the specimen. As one of the most important fire characterization methods for polymeric materials, cone calorimetry measures the reducing oxygen concentration in the combustion gasses of a specimen subjected to a given heat
2022 / 07 / 16
PVC Modifier Usage advice When the manufacturers adopt PVC modifier Novista system, all formulas keep the same, except the change of ACR, MBS and CPE. According to the original formula of MBS, ACR, CPE and ACM modification system, as per technical requirement of the products, users should adjust the quantity correspondingly to achieve the best using effect. When using products of impact modifier WS-E system, as without adding CPE, users should decrease the quantity of both internal and external lubricant in formula to achieve the best plasticizing effect.
PVC Modifier Product of futures
2022 / 07 / 16
PVC Modifier Product futuresThe PVC modifier has excellent modification effect with less dosage, which conforms to EU ROHS Directive, eco-friendly and without secondary pollution. The impact PVC modifier has good compatibility and doesn`t precipitate, which is the preferred choice of environmental protection efficient modifier in PVC industry.The PVC impact modifier has good modification effect, excellent processing performance, make the products appearance gloss improved greatly, with moderate hardness and the synergistic effect of thermal stability enhanced. It also have functions of antioxidant and light stability, which can improve the weather resistance and heat resistance of various PVC products.To adopt the modifier of acrylic modification, fundamentally changed the current CPE modified method, which is in line with international advanced technology. It can decrease the rest chlorine of CPE products erode screw and other equipments.
Impact Modifier MBS Resin For PVC
2022 / 07 / 16
MBS additives are commonly known as MBS resin. As one of the most important impact modifiers of PVC, MBS resin can maintain the transparency of PVC at the same time as toughening, and at the same time, compared with other impact modifiers, Can be more substantial to enhance the toughness of products, which is widely used in PVC and PBT / PC and other engineering plastics processing applications. MBS resin is a functional polymer material synthesized on the basis of particle design concept. It is a ternary polymer prepared by emulsion graft polymerization. The submicron morphology has a typical core-shell structure. The core of the particle is that it is subjected to mild crosslinking With a low shear volume of styrene-butadiene rubber core, mainly to improve the role of polymer impact toughness. The shell is the hard shell formed by grafting styrene and methyl methacrylate. The main role of MMA in the shell is to improve its compatibility with PVC, so that MBS can be uniformly dispersed in PVC body; St is mainly to improve the MBS Resin refractive index to MBS has a similar refractive index with PVC, so MBS resin is a typical particle dispersion toughening modifier. It is semi-compatible with PVC two phases, that is, with PVC resin has a good interface compatibility, but also in the PVC / MBS system to maintain the integrity of the particle shape. MBS added a small amount of good dispersion in the PVC ball particles, not a decentralized "sea - island" structure, can not achieve the role of impact energy, material toughening effect is not good. With the addition of MBS resin, the dispersed particles gradually coalesce to form the island structure. When the material is subjected to external impact, the rubber core in the MBS resin is the stress concentration point, causing it to deform, and in the surrounding induced crazing and shear zone, through the crazing and shear zone to disperse and absorb the impact energy, forming the material From brittle fra
Different Products Require Different Chemical Compounds
2022 / 07 / 16
Not all flame retardants are the same. Plastics and other materials where flame retardants are used are widely different in their inherent properties and in roles they serve in their products. Similarly, flame retardants are a widely diverse set of chemicals that vary by functionality and application. They all help to inhibit or suppress fire ignition - no ignition, no fire. Specific flame retardants are included in electronics products based on product attributes, properties, use, and potential ignition threats. Novista Group supplies equivalent of FP-2100JC, FP-2200S, FP-2500S, Exolit OP1230, OP930, OP1312, OP1314 to global market.
Common mistakes in the use of flame retardants
2022 / 07 / 16
Misunderstanding 1: The larger the amount of flame retardant, the better the flame retardant effect. The limiting oxygen index (LOI) and UL-94 test results show that the flame retardant performance of the material is related to the flame retardant dosage. With the increase of flame retardant content, the flame retardant effect first increases and then decreases. Too much flame retardant can have a significant impact on the mechanical properties of the material. Misunderstanding 2: The higher the flame retardant rating, the better. In general, people always want their materials to have a higher flame rating. However, in fact, various flame retardant test methods have limitations, and their conclusions are relative. For example, UL94 V-0 is better than V-2, however, some electrical products require arc ignitable materials and V-2 is better than V-0. Since V-2 plastic does not form conductivity and coke under the action of electricity, the possibility of fire is greatly reduced, but V-0 plastic is the complete opposite. Novista Group supplies DBDPE, BDDP, FR245, TTBP,SR130 to global market.
Effects of Flame Retardant and Glass Fiber on the Properties of PA66
2022 / 07 / 16
Due to the needs of electronic product applications, PA66 must have certain flame retardancy and relative tracking index (CTI) properties. Also, depending on product strength requirements, it may be necessary to add glass fibers to the PA66 material. Commonly used flame retardants are nitrogen flame retardants, bromine flame retardants and red phosphorus. (1) Under normal circumstances, the flame retardant grade of pure nylon PA66 is UL94V-2, and the CTI value can reach CTI600. (2) When glass fiber is added to pure PA66 to increase the strength, the glass fiber is used as the core, which reduces the flame retardant grade of the material and becomes UL94-HB grade. (3) Using nitrogen-based flame retardant for PA66 and no glass fiber, it can reach UL94V-0, and the CTI value can reach 600V. (4) When glass fiber is used in PA66 and nitrogen-based flame retardant is added, the flame retardant performance of the material will also deteriorate and reach HB level. (5) PA66 also becomes UL94V-0 flame retardant grade when brominated flame retardant is added, and in the case of glass fiber reinforced material, it becomes UL94V-0 grade. However, the addition of bromide greatly reduces the CTI index of the material. Basically CTI175 or CTI250 grade. Low CTI limits the application of PA66. All Glow Wire 750 PA66 materials required by the industry are brominated flame retardants. Of course, the CTI value is not high. (6)
Difference between tube and pipe - 1
2022 / 07 / 15
It is generally thought that plastic tube and plastic pipe are the same thing. These words are often used interchangeably, because tubes and pipes are both long hollow cylinders. But they are actually quite different. Here we explain the difference between tube and pipe. What is a plastic tube? Plastic tube is a long hollow cylinder that is defined by its outside diameter (OD). The size of the bore, which is the hollow area in the middle of the tube, isn`t critical to the end use, whereas the OD is the most important measurement. Within this definition, plastic tube is not suitable for transporting liquids and gases or for applications involving pressure. For such applications plastic pipe is more suitable. Tubing is more commonly used for general purpose applications such as modelling, crafts, packaging, flags, conduit, display applications, and the construction of simple frames and structures. What is a plastic pipe?
Difference between tube and pipe - 2
2022 / 07 / 15
What is the difference between tubing and pipes? There is an important but often misunderstood difference between tube and pipe. The difference is essentially how the hollow cylinders are manufactured and measured. For pipes, the inside diameter (ID) matters a great deal because that determines the capacity of the pipe. Conversely, for tubes the outside diameter (OD) is more important and is usually the measurement that is the deciding factor. This leads to the question of why can't both the ID and OD be defined? The manufacturing process plays an important prole in answering this. It is possible to have a consistent bore, which is the ID. And it is possible to have a consistent OD. But during the extrusion process the wall thickness varies, and the manufacturer can either control the ID or OD. But not both, or at least not to a high precision. Pipe and tube are two words for hollow cylinders, but they are not the same. In si
2022 / 07 / 09
PVC processing aids have played a very good role in the processing of our PVC pure resin. It can help us add auxiliary materials to improve its performance during processing. There are also some classifications about its types, let's take a look together below.First, ACR processing aid: ACR is a copolymer of methyl methacrylate and monomers such as acrylate and styrene. It can be used as both processing aids and modifiers. The important role of ACR processing aids is to promote the plasticization of PVC, shorten its plasticization time, improve the uniformity of melt plasticization and reduce the plasticization temperature. Second, light stabilization processing aids: Most PVC profile products are exposed to light and other various light. Adding a certain amount of light stabilization aids during processing according to the application environment of the product can prevent and relieve the decomposition and aging of the product and prolong the product Service life.
2022 / 07 / 09
MBS (Methylmetharylate-Butadiene-Styrene) is a new type of polymer material synthesized under the concept of particle design. It is prepared by emulsion graft polymerization of methyl methacrylate (M), butadiene (B) and styrene (S). It has a typical core-shell structure in submicroscopic morphology. The core is a spherical rubber core with a diameter of 10 nm ~ 100 mm, and the outside is a shell composed of styrene and methyl methacrylate. Because the dissolution parameters of methyl methacrylate and polyvinyl chloride (PVC) are similar, it plays the role of interface adhesive between PVC resin and rubber particles, forms homogeneous phase in the process of processing and mixing with PVC, and gives the product excellent impact resistance. MBS / PVC is widely used in the composition of MBS / PVC molding materials and PVC sheet materials, as well as the impact resistance and tughness of MBS / PVC composite materials, which are similar to those of other types of molding materials and PVC sheet materials. According to different transparency, MBS impact modifiers can be divided into transparent MBS and non transparent MBS. When 5% - 10% MBS resin is added to PVC, the impact strength of the product can be increased by 4-15 times. At the same time, the cold resistance and processing fluidity of the product can be improved. Its refractive index is similar to that of PVC. Using MBS as PVC impact modifier will not affect the transparency of PVC. MBS is the best material to improve the impact resistance of PVC and manufacture transparent products. Almost all transparent PVC products use it as impact modifier. Generally speaking, MBS has appropriate compatibility when blending with PVC, and improves the stability of the blend system. The glass transition temperature of MBS is relatively low, so it can improve the impact resistance of PVC within a certain low temperature limit. Improving the toughness and processability of PVC
2022 / 07 / 09
CRA impact modifier is the interpenetration network copolymer of slightly chlorinated HDPE and acrylate- - -CRA resin, which overcomes the weakness of high vitrification temperature and poor dispersion of CPE, and the effect of low temperature impulse resistance modification is obvious.CRA is used in the same way as CPE. During the use process, the extruder current and torque may decrease slightly, and the amount of external lubricant must be reduced until the current and torque of ACM are the same or slightly higher as that of CPE.Performance comparison of CRA traditional acrylate resistance.The low-temperature impact resistance strength of the new refractory modifying agent CRA is higher than that of the traditional CPE, the fracture elongation rate is also higher than that of CPE, and the Visa softening point is lower than that of CPE.Therefore, we can believe that the new impulse modifier modified PVC products have good low temperature impact resistance strength, excellent room temperature toughness, and excellent thermal stability and ultraviolet resistance, the new impulse modifier is an ideal PVC impulse resilience.
Flame Retardant Furniture and Vehicle
2022 / 07 / 09
Preventing fires and extending escape time are of utmost importance when people are in a confined and not easily vacated space. From airplanes to cars to trains, flame retardants can play a key role in protecting travelers from the devastation of fire. Upholstered furniture and mattresses can be a major contributor to fires. They are often some of the first products to ignite in a house fire, and they are often the largest fuel source in the room. Fires that start on upholstered furniture and mattresses frequently spread beyond the room in which the fire originated. The addition of flame retardants to the fillings and fibers used in furniture and mattresses can help provide individuals with an extra layer of fire protection and increase critical escape time in case of a fire. Novista Group supplies APP, MCA, aluminium hydroxide,magnesium hydroxide to global market.
Flame Retardant Plastics in Electronics
2022 / 07 / 09
Among the many uses of flame retardants in electrical and electronic equipment, additive, non-polymeric organohalogen flame retardants play a critical fire safety role in the plastic casings of electronics. Studies demonstrate that flame retardants in the plastic casings of electronic products increase consumer product safety by regularly preventing short circuits and overheating components from becoming fires. Flame Retardants Are an Important Tool to Help Reduce Electronics Fire Risk The average home contains more than 20 electronic products, including televisions, smartphones, computers, gaming systems and tablets.5 These devices are embedded into our everyday lives, yet they could not be used safely if it weren`t for flame retardants. Have you ever noticed sparks, overheating, melting, or smoke from an electrical device? Flame retardants are one of the key reasons these failures may not escalate into something more serious like a home or office fire. Flame retardants not only reduce the risk of a fire starting, but also the risk of the fire spreading, leaving more time for people to escape and more time for emergency personnel to respond.
Fire Retardant Building Materials
2022 / 07 / 09
Among the many products used to build a home or office, one of the most critical uses of flame retardants in the building environment is insulation. Insulation is widely used in modern buildings to improve energy efficiency. It is thin, light, and has many technical properties that appeal to architects and builders. It is a lightweight, versatile and easy to use material that architects and builders recognize as highly useful in enabling them to realize their designs. Of course of high importance is that insulation helps to reduce energy consumption, which is essential to lowering greenhouse gas emissions Flame retardants help insulation manufacturers meet important fire safety requirements dictated in building codes. They are added to insulation to prevent fires from starting or limiting their spread. For example, insulation that meets fire safety requirements can help prevent or slow fires that result from short circuits or other electrical malfunctions in a home or building`s electrical wiring. Fire Retardant Insulation Building insulation products provide energy efficiency and include flame retardants to satisfy fire safety standards while supporting the health and safety of occupants and workers.
Shipping industry news - Russian forwarders set up liner services to Asia
2022 / 07 / 08
Russian forwarders have launched their own liner services linking their domestic ports to China and India as most global liners, with the notable exception of China`s Cosco, have drastically reduced their operations in the country since the conflicts. Two companies, Swift Line and Inteco Lines, have set up shipping lines for container services between the Russian Far East and China. The services operated by Swift Line, a marine line of Swift Transport Group, offer direct connections from the Port of Vostochny to the Chinese ports of Tianjin and Taicang two to three times a month, utilising the 2007-built multipurpose vessel Sol Hongkong, capable of carrying more than 650 teu, including 30 reefer containers. Meanwhile, Inteco Lines, part of the Inteco freight forwarder group, links Vostochny to Qingdao via the 489 teu Shun Yue 19, while the 264 teu Shun Yue 13 and Shun Yue 18 call at Ningbo. The company said it would increase vessel capacity on these services as well as expand its reach by launching a regular service to Shenzhen.
Foam board and Its Applications in Nowaday Industry-1
2022 / 07 / 08
Foam board is one of the most popular and versatile materials in today`s advertising industry. This material provides affordable and high-quality solutions for individuals and businesses in all sectors. It features a short application life of around 6-12 months, recyclable properties, and highly competitive costs. Foam Board is considered as an ideal material for temporary projects with tight budgets that don`t want to sacrifice quality. Foam Board has a variety of applications, including: - Informative Displays - Trade Show Advertising - Promotional Events - POP Signage - Display Systems UV Flatbed Printing for Business UV Flatbed printing is a form of digital printing that uses ultra-violet lights to dry or cure ink as it is printed. As the printer distributes ink on the surface of substrate material, specially designed UV lights follow close behind, curing or drying the ink instantly. Because of the outstanding smooth surface and versatility of this material, foam board is used for high-quality photo printing in photography, and in the office for meeting presentations. Another good example of this is indoor art projects, which demand high-quality output images and an extraordinary finish. Individuals and companies choose foam board UV printing when they want to create affordable yet vibrant artworks, mainly aimed to decorate interior spaces where they can be appreciated in detail. Making a School Fun Printing on foam board allows small companies and schools to make fantastic visual impact on viewers. Pop-up displays are an excellent example of this, often used by businesses in point-of-sale advertising to increase results and in school projects and exhibitions. Besides the high-quality images that can be printed on foam board, we must also conside
Foam board and Its Applications in Nowaday Industry-2
2022 / 07 / 08
Trade Show Displays Big or small companies cut costs by strategically planning to cater to the expected turnout of a given show, the size of your booth, and your primary sales objectives. For some events, they will want to take up as much visual real estate as possible and pull out all the stops to attract the most attention. They need to look for cost-effective, efficient, good-looking advertising materials when they showcase at trade fairs under a tight budget. Product durability isn`t truly a key factor since people will likely use them once or twice during a short period of their trade show displays. Foam board is one kind of easy-process advertising material. It can be sculpted by CNC cutter, framed on easels and also be hung with 3M double-sided Velcro tape. It`s a fact that foam core board doesn`t last for a long time, but its affordability allows wide ranges of applications, and it`s lightweight enough to save the work on transportation and installation process. The assembling and disassembling work will also save more manual labor. Foam board is exciting stuff. Restaurant Business Promotion What is today`s best recommendation? Do you have any hot new products that have been just landed
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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.