English full name: TPU THERMOPLASTIC URETHANE
Chinese name: THERMOPLASTIC polyurethane yan
color: transparent
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 segments to increase 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
transparent中文意思 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
viscosity performance: viscosity decrease with the increase of shear
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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. Increase the demoulding viscosity.
2. The molding time (lower mold temperature and prolonging cooling time, reduce the injection pressure, shorten the holding time, etc.).
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).
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