Mainly used in the production of higher hardness, good elasticity of polyurethane products.
Can be used for hand, also suitable for casting machine operation, chain extender for MOCA or other chain extender.
Product parameters
高回弹型
HC-6590N
HC-5295
HC-2290N
预聚体
常温外观(25℃)
蜡状固体
蜡状固体
蜡状固体
NCO含量(%)
4.5~5.0
7.5~8.5
8.5~9.5
使用配比(PHR)
13.0~14.5
7.6~8.6
8.6~9.7
釜中寿命
(75~78℃/min)
8~10
5~7
6~8
成品物性
硬度(邵D)
90±5
95±5
90±5
拉伸强度(MPa)
48.2
57.2
57.7
撕裂强度(kN/m)
112.0
135.7
143.5
扯断伸长率(%)
380
498
514
冲击回弹(%)
55
58
58