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尊敬的新老客户您好，本公司国庆放假通知如下：2025年10月1日- 10月8日，10月9日正式上班，因放假期间带来的不便，敬请谅解！若情况紧急，可添加段经理微信留言，谢谢配合！
天元航材是一家生产销售端羟基聚丁二烯（HTPB、Hydroxyl-terminated polybutadiene）等化工原材料的厂家，其中端羟基聚丁二烯的英文名称为Hydroxyl-terminated polybutadiene，端羟基聚丁二烯是一种液体遥爪聚合物，是一种新型液体橡胶。那么您足够了解Hydroxyl-terminated polybutadiene吗？今天小编给大家介绍一下吧！
Hydroxyl-terminated polybutadiene (HTPB) is an oligomer of butadiene terminated at each end with a >hydroxyl functional group. It reacts with isocyanates to form polyurethane polymers.
HTPB is a translucent liquid with a color similar to wax paper and a viscosity similar to corn syrup. The properties vary because HTPB is a mixture rather than a pure compound, and it is manufactured to meet customers' specific requirements. A typical HTPB is R-45HTLO. This product consists of oligomeric units typically containing 40–50 butadiene molecules bonded together, with each end of the chain terminated with a hydroxyl [OH] group.
R-45HTLO has a functionality of 2.4-2.6, which means that there is (approximately) one additional hydroxyl group located along the chain for every two oligomeric units. This provides side-to-side linkage for a stronger cured product. HTPB is usually cured by an addition reaction with di- or poly-isocyanate compounds.
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Project Name |
Hydroxyl-terminated polybutadiene |
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| I型 | I型-改 | II型 | III型 | IV型 | |
|
羟值，mmol/g |
0.47-0.53 |
0.54-0.64 |
0.65-0.70 |
0.71-0.80 |
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|
水质量分数，% |
≤0.050 |
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过氧化物质量分数，以pO2计，% |
≤0.040 |
≤0.050 |
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|
粘度(40℃)，Pa·s |
≤9.5 |
≤8.5 |
≤4.0 |
≤3.5 |
|
|
数均分子量(×103)(VPO)(GPC) |
3.80-4.60 |
4.00-4.60 |
3.30-4.10 |
3.00-3.60 |
2.70-3.30 |
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挥发物质量分数，% |
≤0.5 |
≤0.65 |
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|
HTPB Appearance |
Colorless or light yellow transparent liquid, no visible impurities |
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Hydroxyl-terminated polybutadiene Complaint
Flash Point:113 °C
天元航材是一家生产销售端羟基聚丁二烯（HTPB、Hydroxyl-terminated polybutadiene）等化工原材料厂家，产品厂家直销，送货速度快，质量有保障，价格更实惠，欢迎来电咨询！
参考来源：https://zh.wikipedia.org/wiki/%E7%AB%AF%E7%BE%9F%E5%9F%BA%E8%81%9A%E4%B8%81%E4%BA%8C%E7%83%AF
段经理:186-9619-5531（产品咨询）
