Plastics Products
Insulating Material
You are here：Home＞MATERIALS
Cast polyurethane(PU) is a new composite material between plastic and rubber .PU is formed after chemical reaction of polymer polyalcohol and isocyanate through chain extension and cross linkage ,it is divided into polyether (PPG) and polyester according to its backbone chain.
Features:
High load bearing capacity;More durable than conventional elastomers;Can be machined, drilled, sawn, turned and shaped;Wide range of physical properties ;
High impact resistance;Low unlubricated coefficient of friction;Good water resistance;Resists cracking under repeated flexure;Remains flexible at very low temperatures
Applications ,Conveyor drive and idle rollers ;Hydraulic and pneumatic seals ;Pump impellers ;Bearing pads , rollers , gear wheels , bushes ;Crane wheels ;Conveyor belt scraping blades ;Wear parts ;Printing rollers ;Cyclone nozzles
Technical Data
Property | Unit | PPG | Polyester | ||
Hardness | Shore A | 80±2 | 90±2 | 75±2 | 90±2 |
Density | g/cm3 | 1.1 | 1.1 | 1.23 | 1.23 |
NCO Content | % | 4.0±0.1 | 5.2±0.1 | 2.5±0.1 | 4.1±0.1 |
Viscosity | --- | 400~600 | 150~250 | 1300~1800 | 1200~1700 |
Tensile Strength | MPA | 15~17 | 25~28 | 32~35 | 45~50 |
Tear Strength | KV/M | 50~55 | 80~90 | 60~70 | 100~110 |
100% Modulus | MPA | 3.6 | 6.6 | 2.3 | 6.7 |
300% Modulus | MPA | 6.1 | 12.1 | 3.7 | 12.8 |
Elongation at Break | % | 590~630 | 450~500 | 850~900 | 630~700 |
Abrasion Wear | mm3/1.61h | ≤0.06 | ≤0.05 | ≤0.025 | ≤0.013 |
Compression Defromation | % | 40 | 45 | 25 | 26 |
HOME 丨 ABOUT US丨 PRODUCTS丨 MATERIALS丨 NEWS丨 CONTACT US
©Copyright 2024 Xincere Plastics Co.
Technical support: HuaXia ShangWu
Add: NO.196 Zhengyang road,Chengyang dis.,Qingdao,China 266109.
Tel:86-0532-87725064 Fax:86-0532-88561787 E-mail: info@xinplast.com skype tsingphy.s
whatsapp 0086-13793226695 鲁ICP备16031739号
