English full name: TPU THERMOPLASTIC URETHANE
Chine name: THERMOPLASTIC polyurethane yan
color: transparent
思念家乡的诗词features: 1. The THERMOPLASTIC polyurethane for hot plasticity resin.
2. The oil resistant heat resisting abrasion resistance, but poor water resistance to cold.
3. The hard gments to increa its mechanical qualitative change, but reduce the compression strain and elastic.
4. Can make foam, elasticity of the material.
5. Its good gloss coating easily.
Mechanical：properties (ordinary) heat resistance
tensile strength: 440-490 KGF/cm ^ 2
hardness: 90-98Hs(JIS a)Shore D
young's modulus (JIS a) : 120-190 ekgf/cm ^ 2
tensile elongation: 900%
the thermal properties of softening point: 114 ℃ to 131 ℃
forming processability
手工红包viscosity performance: viscosity decrea with the increa of shear
shear rate | 溫度變化範圍 | 黏度變化情形(g/cm．c) 济公全传 | 10^ 1 | 185→225℃ | 1.684*10^4→1.180*10^3移动支付英语 | 10^ 2 | 曾几的诗185→225℃ 1965年什么命 | 5.130*10^3→8.815*10^2 | 5*10^ 3 | 烤羊排做法 185→225℃ | 1.570*10^3→5.265*10^2 | | | |
|
|
specific gravity: 1.12
Application Description
machinery: conveyor belt, gear, cars (filter tank cover), zero accessories of loom.Other aspects: wires, adhesive, paint, tires, leather goods manufacturing.
Daily necessities: sole, synthetic leather, leather belt, etc.
TPU processing problem
The mucous membrane of the moulded part
1. Increa the demoulding viscosity.
2. The molding time (lower mold temperature and prolonging cooling time, reduce the injection pressure, shorten the holding time, etc.).
糯米蛋
Shrink warp
1. The design of multipoint feeding door.
2. Mold temperature uniformity.
3. Adjust the molding conditions (improve tree refers to the temperature, mold temperature, reduce injection pressure).
