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2022 Hot Sale PI Plastic raw material Polyimide
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PI, commonly known as Polyimide in Chinese, is an aromatic heterocyclic polymer compound with a molecular structure containing an imide chain section, and its English name is Polyimide(abbreviated as PI). It can be divided into four categories: homobenzene PI, soluble PI, polyamide-imide (PAI) and polyethereimide (PEI).
Introduction to PI Plastic Materials
PI is the engineering plastics in the heat resistance of plastic raw materials in one of the best varieties, some varieties can long-term under 290 ℃ high temperature short time under the high temperature of 490 ℃, and mechanical properties, fatigue resistance, fire resistance, dimension stability, electric performance is good, molding shrinkage of small, they can withstand oil, acid and organic solvent, alkali resistant, has excellent resistance to friction and abrasion performance.
PI plastic raw material characteristics
1, mechanical properties, good fatigue resistance, good self-lubricity; The tensile strength of the polyimide film can reach 170 MPa for the homobenzene type and 400MPa for the biphenyl type
2, wear resistance, friction coefficient is small and not affected by wet, temperature, high impact strength, but sensitive to notch.
3, excellent heat resistance, can be in -260 (not brittle) ~ 330oC long-term use, thermal deformation temperature up to 343oC.
4, good radiation resistance, no cold flow, no cracking, excellent electrical insulation, flame retardant.
5, small shrinkage, linear expansion coefficient, good dimensional stability, low water absorption.
6, good chemical stability, ozone resistance, bacterial erosion resistance, good solubility, but vulnerable to alkali, pyridine and other erosion
PI plastic raw material molding method
Compression molding, impregnation, injection molding, extrusion, die casting, coating, casting, lamination, foaming, transfer molding.
PI plastic raw material application field
PI materials are used in aviation, automotive, electronic and electrical appliances, industrial machinery and other aspects. They can be used as engine fuel supply system parts, jet engine components, compressor and generator parts, fasteners, splines joints and electronic connectors, and automobile engine parts, bearings, piston sleeves, timing gears. In the electronic industry, it does printed circuit boards, insulation materials, heat-resistant cables, terminal posts, sockets, and in the mechanical industry, it does high-temperature self-lubricating bearings, compressor blades and piston machines, sealing rings, equipment heat shields, thrust washers, bushings, etc. High temperature self-lubricating bearings, compressor piston rings, tobacco machinery accessories, printer automation accessories, gripper, gasket, sleeve and other fields.
Polyimides are classified as follows:
Dupont Vespel is the most typical representative of polyimide (PI) plastic series.
Vespel-sp1 (brown) : Basic specification with highest mechanical strength and electrical properties.
Vespel-sp21 (black) : 15% graphite filled specification to provide wear characteristics and heat resistance.
VESPEL-SP211 (black) : The lowest static friction coefficient is obtained by adding 15% graphite and 10%PTFE filling. Suitable for medium temperature environment.
Vespel-sp22 (black) : Add 40% graphite to fill specifications for minimum expansion coefficient and highest creep resistance impedance.
VESPEL-SP3 (black) : 15% molybdenum disulfide filling specification, suitable for vacuum or inert gas friction sliding requirements.
PI plate specification: 5-80*300*300MM
PI bar specification: 6.3-82.5*960MM
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
- Guangzhou Yaliyan Plastic Co. , Ltd.
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