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PE plastic (polyethylene)
English name: Polyethylene
Specific gravity: 0.94-0.96 g/cubic centimeter molding shrinkage rate: 1.5-3.6% Molding temperature: 140-220℃ Drying conditions: low water absorption, can not be dried before processing.
The physical and chemical properties
1. Corrosion resistance, excellent electrical insulation (especially high frequency insulation), chlorination, irradiation modification, glass fiber reinforcement. 1. Crystallization material, moisture absorption is small, does not need to be fully dry, excellent fluidity, fluidity is sensitive to pressure, molding should be injected with high pressure, uniform material temperature, fast filling speed, full pressure retention. It is not suitable to use a direct gate to prevent uneven contraction and increase internal stress. Pay attention to the gate location to prevent shrinkage and deformation.
The shrinkage range and shrinkage value are large, the direction is obvious, and the deformation is easy to warp. Cooling speed should be slow, mold set cold material hole, and cooling system.
⒊ heating time should not be too long, otherwise it will decompose and burn.
When soft plastic parts have shallow side grooves, they can be forced to release.
5. Melt rupture may occur, and it is not suitable to contact with organic solvents to prevent cracking.
The classification of the PE
Low density polyethylene (also known as high pressure polyethylene)
Linear low density polyethylene
Medium density polyethylene
High density polyethylene (also called low pressure polyethylene)
Ultra high molecular weight polyethylene
⑹ Modified polyethylene
Chlorinated polyethylene (CPE), cross-linked polyethylene (PEX)
⑺ ethylene copolymer
Ethylene-propylene copolymer (plastic), EVA, ethylene-butene copolymer, ethylene-other olefin (such as octene POE, cycloolefin) copolymer, ethylene-unsaturated ester copolymer (EAA, EMAA, EEA, EMA, EMMA, EMAH). Polyethylene with a molecular weight of 3 million to 6 million is called ultra-high molecular weight polyethylene (UHMWPE). Ultra-high molecular weight polyethylene is so strong that it can be used to make body armor.
Processing and application
It can be processed by blow molding, extrusion, injection molding and other methods, and is widely used in the manufacture of films, hollow products, fibers and daily sundries. In the actual production, in order to improve the stability of polyethylene to ultraviolet light and oxidation, and improve the processing and use performance, a small amount of plastic additives should be added. Commonly used UV absorbers are o-hydroxydiphenyl ketone or its alkoxy derivatives, etc. Carbon black is an excellent UV shielding agent. In addition, antioxidants, lubricants, colorants, etc. are added to expand the application scope of polyethylene.
Guangzhou Yayan Plastic Products Co., LTD. Spot supply: PEEK board/rod, PPS board/rod, PVDF board/rod, PTFE board/rod, PSU board/rod, PEI board/rod, PI board/rod, PAI board/rod, PPO board / bar, PBT board/bar, CPVC board/bar, UPE board/bar, PETP board/bar, PC board/bar, POM board/bar, ABS board/bar, PMMA board/bar, PP board/bar, PE board / bar, imported PU board/bar, German PES board/bar, domestic PVC board/bar, Swiss engineering PBI board/bar, German PA nylon series board/bar/piece, MC nylon series board. Insulation materials: Taiwan red, black electric board, cold stamping board, phenolic laminated cloth bar board, heat insulation board, epoxy glass fiber bar board, epoxy board (FR-4) asbestos board, etc. Anti-static products: anti-static POM board/bar, anti-static organic board, anti-static PC board. Anti static PVC board/bar, anti static nylon board/bar synthetic SLATE and so on.
Welcome to call and visit to negotiate!
For more information, call 020-36228290
Mobile phone: 180 2748 2446
Contact person: Miss Huang
Guangzhou Yaliyan Plastic Co. , Ltd. is specialized in all kinds of engineering plastic semi-finished products. Product, Insulation Material Technology Research and development, production and sales of integrated enterprises. The company has always maintained a good partnership with professional manufacturers of engineering plastics and insulating materials at home and abroad, acting as agents for Taiwan, Germany, the United States, Korea, Japan, in order to meet the various development needs of our customers, switzerland and other countries of various, engineering plastics, insulation material plate, bar. Pipe. The company has always been adhering to the “Brand-first, technology-oriented, quality-oriented, Standard Development”business philosophy, customer satisfaction-oriented business philosophy and high-quality philosophy, committed to consolidating the brand, continuous development of new products, integrity services, quality and credit-based. To strengthen cooperation with the majority of customers, establish good relations. Our products include all kinds of plastic board, plastic sheet, plastic rod, industrial plastic products, anti-static plastic plate Rod and so on a series of plastic materials. IMPORTED PLASTIC MATERIALS: Peek Plate/stick, PVDF Plate/stick, PPS plate/stick, CPVC PLATE/PTFE plate/stick, Pei plate/stick, PBI plate/stick, Pai Plate/stick, Pi Plate/stick, PSU plate/stick, PES plate/stick, PPO plate/stick, PETP plate/stick, PBT plate/stick, UPE plate/stick, ABS plate/stick, POM Plate/stick, POM-esd plate/stick, PA plate/stick, PE plate/stick, PP plate/stick, Pu plate/stick, PC plate/stick, etc. . General Engineering Plastics: Acrylic Plate, plexiglass plate, ABS plate/bar, POM Plate/bar, PP plate/bar, PE Plate/bar, PS Plate/bar, PVC Plate/bar, etc. Plate, Bar, pipe. HIGH TEMPERATURE INSULATION MATERIALS: Red And black bakelite board, epoxy, cloth Bakelite, cold punching, phenolic laminate, FR-4 fiberboard, etc. , welcome to call to discuss contact telephone: 020-86214867 mobile phone wechat: 13501519803 fax: 020-86214867QQ: 2818809206 contact: Miss Huang
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