Chlorinated Polyethylene CPE135A
Product Description
Chlorinated polyethylene CPE is a high molecular elastomeric material that is chlorinated by HDPE. It is white powder and innocuous. It has excellent anti-flaming, weatherability, lower-temperature flexibility and impact strength, etc. It can be blended with other plastics and rubber, mainly used as PVC impact modifier.
Physicochemical Properties
Item Unit Index
Chlorine Content % 35 ±1
Thermal Decomposition Temperature 165
Bulk Density g/ml 0.5
Volatiles content % 0.3
Particle size % 99
Impurity Particle PC/50g 10
Shore Hardness 70
Tensile Strength MPa 13
Elongation at break % 700
Product Benefits and Application
It is widely used in PVC profiles, pipes, pipe fitting, sheets, etc.
Storage, Packing & Transportation
Packaged in 25kg airproof plastic bag, then in woven bags with quality certificate, the outside of bags is marked with brand, company name, net weight of products, lot identification mark . Avoid insolation , drench.
Stored in cool and draughty place, shelf life: Two years.
Description
Hydrotalcite is a layered double hydroxide, and layered compounds refer to a class of compounds with a layered structure, interlayer ions, and exchangeability. Due to its unique layered structure and excellent physical and chemical properties, it has efficient acid absorption performance and good thermal stability, when combined with calcium zinc additives, it has a good doubling effect on thermal stability.
Product Advantage
High acid absorption performance and stable acid absorption effect can maintain good acid absorption performance even at high temperatures, which helps to delay the degradation process of materials. Good thermal stability, adding hydrotalcite to the polymer can significantly improve the thermal stability of the material, maintain structural stability, and extend its service life.
As an inorganic material, hydrotalcite is a green and environmentally friendly functional material, it can
replace traditional toxic stabilizers and reduce the harm to the environment and health. ï??Hydrotalcite utilizes infrared absorption function and also has good thermal insulation and flame retardancy. The layered structure is adjustable, and by adjusting the synthesis conditions, its interlayer spacing and
chemical composition can be adjusted to customize its performance to meet different needs. Application
Hydrotalcite is widely used in PVC products, calcium zinc stabilizers, plastics, rubber, coatings, Medicine , and environmental protection etc., and is also used as a catalyst, flame retardant and acid absorbent.
MBS (methyl methacrylate butadiene styrene copolymer) impact modifier is an important polymer material additive,
Application in different plastics:
Polyvinyl chloride (PVC):
MBS is a commonly used impact modifier for hard PVC. It can significantly improve the impact strength of PVC without affecting its transparency, making it suitable for products that require both transparency and impact resistance, such as transparent packaging films, heat shrink films, twisted films, etc.
In soft PVC, MBS can also improve its flexibility and impact resistance, while having minimal impact on other properties.
Engineering plastics:
MBS can improve the impact resistance and processing performance of polycarbonate (PC) and its alloys. For example, in PC/ABS alloys, MBS can enhance the toughness of the alloy, making it suitable for fields such as electronics and electrical enclosures that require high material performance.
For polyester engineering plastics such as PBT and PET, MBS can be used as a toughening agent to improve their impact resistance at low temperatures and expand their application range.
Advantages and Characteristics:
Good transparency: MBS has a refractive index similar to PVC and other plastics, so when used as an impact modifier, it will not affect the transparency of plastics, which is of great significance for the production of transparent plastic products.
Good compatibility with the matrix resin: MBS has solubility parameters similar to various plastics and can be uniformly mixed with the matrix resin to form a stable system, effectively exerting its impact modification effect.
Small impact on other properties: While improving the impact resistance of plastics, MBS has little effect on other mechanical properties such as tensile strength, elongation at break, as well as thermal stability, chemical stability, etc., and can maintain the comprehensive performance of plastics.
The impact on processing performance:
Improving processing flowability: MBS can reduce the melt viscosity of plastics, enhance their processing flowability, make plastics easier to form during processing, and reduce processing difficulty and energy consumption.
Good processing stability: MBS has good thermal and chemical stability, and is not easily decomposed or undergoes chemical reactions during plastic processing, ensuring the stability of the processing process and product quality.
Lubricants are used in plastic processing to enhance the demolding properties of products and prevent defects caused by adhesion within the machine or mold. Usually added to the molding compound or coated on the surface of the mold cavity. Common lubricants include fatty acids and their salts, as well as long-chain fatty hydrocarbons. According to the different mechanisms of lubricant action, it can be divided into external lubricants and internal lubricants.
(1) External lubricant: This lubricant has poor compatibility with molding resins, so it is commonly used in molding processing machinery or molds. It forms a lubricating layer between the lubricant and the resin, which facilitates resin flow and product demolding, such as paraffin.
(2) Internal lubricant: This type of lubricant has good compatibility with resin and is often mixed into the resin to reduce its melt viscosity and improve its flowability. Such as butyl stearate, lead stearate, etc. Stearates are both good lubricants and effective stabilizers.
Polyethylene wax (PE wax), also known as polymer wax, abbreviated as polyethylene wax. Due to its excellent cold resistance, heat resistance, chemical resistance, and wear resistance, it has been widely used. In normal production, this wax can be directly added as an additive to polyolefin processing, which can increase the gloss and processing performance of the product. As a lubricant, it has stable chemical properties and good electrical performance. Polyethylene wax has good compatibility with polyethylene, polypropylene, polyvinyl acetate, ethylene propylene rubber, and butyl rubber. Can improve the flowability of polyethylene, polypropylene, ABS, and the demolding properties of polymethyl methacrylate and polycarbonate. Compared to other external lubricants, polyethylene wax has a stronger internal lubrication effect on PVC.
We are China biggest oxidized polyethylene wax manufacturer with capacity 15,000MT per year,we have been in production of OPE wax more than 20 years.
With the high and stable quality,currently we have taken China biggest market share in pvc foam board,WPC,SPC and pvc stabilizer.We also have taken India 1st market share since 2017 which could be seen from the India custom data.
We have advantages in high density oxidized polyethylene wax , Our OA series OPE wax can completely replace Honeywell and BASF products with more competitive price widely used in the PVC products and PVC stabilizer industry. We have also established long-term cooperation with international stabilizer manufacturers such as Baerlocher and Sunace in some advantage products like
OA716 which has high melt point and good fusion,it can be used in most pvc products to replace Honeywell AC316.
OA719 which has high viscosity and high melt point to replace Honeywell AC307,with the highest viscosity it take good dispersivity in high filler formulation and promote good fusion to have better surface in pvc products.
OA316A+ our R&D work out the advantage catalyst same as A-C 316A, it is the only grade in the market could totally replace Honeywell A-C 316A in most application like PVC products, PVC foam board, calcium zinc stabilizer, PVC stabilizer, color masterbatch, coating, cable,emulsion , printing, dyeing and textile, asphalt modification, etc.
ACM IMPACT MODIFIER is an unique impact modifier which is an interpenetrating network copolymer (IPN ) with the structure of CPE grafted Polyacrylate . It has balance impact strength and toughness which endow it better performance than other general type impact modifiers like CPE and MBS.
Excellent impact strength under low temperature
Excellent toughness and hardness for PVC products.
Better weather-resistance
better surface glossiness for PVC finished products
Introduction to PVC processing aids
PVC processing aid is a chemical substance specifically used to improve the processing performance of polyvinyl chloride (PVC) plastic products. They play a crucial role in the production process of PVC plastic products, significantly improving product quality and production efficiency.
Definition and Function
PVC processing aids are multilayer ultra-high molecular weight polymers made of acrylate monomers through multi-stage lotion polymerization. Their main functions include:
Improving processing performance: By improving the flowability, thermal strength, and ductility of PVC melt, plasticization time and productivity can be increased.
Improve product quality: reduce mold expansion phenomenon, enhance resistance to elongation or stretching deformation, increase solution viscosity, and improve internal and surface quality.
Types and Applications
Common PVC processing aids include:
ACR: The best impact modifier developed in recent years, suitable for outdoor PVC plastic products, with good processing performance, smooth surface, and good aging resistance.
CPE: Chlorinated polyethylene, commonly used in the production of PVC pipes and profiles, with a dosage of 5-15 parts per square meter.
MBS: It has good compatibility with PVC and is commonly used in transparent products, but its price is relatively high and it is not suitable for long-term outdoor use.
ABS: The usual dosage is 5-20 parts, but it has poor weather resistance and is not suitable for long-term outdoor use.
EVA: Often used in combination with other impact resistant resins, but it is difficult to obtain transparent products.
History and Development
PVC processing aids were first developed by the American company Rohm and Haas in 1958, and similar products were subsequently developed by countries such as Japan, South Korea, and Germany. With the widespread application of PVC products, processing aids have been widely used since the 1970s.
Market and application areas
At present, the world's major manufacturers of PVC processing aids include Mitsubishi from Japan, Zhongyuan Chemical, Rohm and Haas from the United States, and Bear from Germany. The Beijing Institute of Chemical Technology and Shanxi Institute of Chemical Technology were among the earliest to engage in research on PVC processing aids in China. Shanghai Shanhu Chemical Plant was the first to achieve industrial production in the early 1980s.
In summary, PVC processing aids play an important role in the production of PVC plastic products, significantly improving production efficiency and product performance by improving processing performance and product quality.
The main function of PVC impact modifier is to improve the impact resistance of PVC plastic products, enhance their toughness and hardness. PVC belongs to low-temperature brittle materials, which are prone to forming notches or cracks under stress impact. Therefore, adding impact modifiers can effectively improve these problems.
Common PVC impact modifiers and their effects
CPE (Chlorinated Polyethylene): CPE is one of the commonly used PVC impact modifiers, which has the characteristics of wide source and low price. It not only can toughen PVC, but also has cold resistance, weather resistance, and chemical resistance. CPE is widely used in the production of PVC pipes and profiles, with a typical addition amount of 5-15 parts.
ACR (methyl methacrylate acrylate copolymer): ACR is one of the best impact modifiers developed in recent years, which can significantly improve the impact strength of materials. ACR is particularly suitable for PVC plastic products used outdoors due to its excellent aging resistance and processing performance.
MBS (methyl methacrylate butadiene styrene copolymer): MBS has good compatibility with PVC and can significantly improve the impact strength of PVC while maintaining its transparency. MBS is commonly used for transparent PVC products, but its weather resistance is poor and it is not suitable for long-term outdoor use.
Application scenarios and advantages and disadvantages of different impact modifiers
CPE: It has a wide range of sources and low prices, but the use of chlorine containing components is limited in European and American countries, and its impact resistance is generally .
ACR: It has the best impact resistance, good weather resistance, and is suitable for outdoor use, but its price is relatively high.
MBS: Good transparency, but poor weather resistance, not suitable for outdoor use, high price
