牌号简介 About |
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Hylar® 5000 HG是聚偏氟乙烯(PVDF)的结晶高分子量粉末形式,专门为溶剂型涂料设计,以提高光泽。它形成了机械强度高、硬度大、使用温度范围广的薄膜。这些薄膜对包括伽马辐射在内的大多数环境条件都有很高的抵抗力,并且对紫外线辐射基本上是透明的。Hylar® 5000 HG-27涂层的耐候性使其长期性能优异。Hylar 5000只能通过指定Hylar® 5000 HG涂层成分的许可计划获得。适当配制的饰面含有足够的颜料,使薄膜在建议的标称1密耳(0.001英寸)薄膜厚度下完全不透明,不受紫外线辐射影响。安全Hylar® 5000 HG在最高600°F(316°C)的温度下稳定。当其长期处于600°F(316°C)以上的温度下时,氟化氢(HF)开始演化,在700°F(371°C)以上的温度下,HF迅速演化。Hylar® 5000 HG具有优异的阻燃性;但是,在发生火灾时,可能会形成氢氟烃和少量潜在有毒的碳氟化合物。HF具有腐蚀性,接触后会导致烧伤,美国政府工业卫生学家会议(ACGIH)的阈值(TLV-TWA)为3 ppm(2.5 mg/m³)(1984年)。如果温度控制不当,在烘箱中也可能发生Hylar® 5000 HG到HF的热分解。如果发生火灾,使用NIOSH认可的自给式呼吸器和皮肤保护装置,以防止挥发性分解产物。Hylar® 5000 HG可在批准的土地填料中处理,但不得焚烧,除非适用法律允许并规定吸收HF。 Hylar® 5000 HG is a crystalline high molecular weight powder form of polyvinylidene fluoride (PVDF)specifically designed for solvent-based coatings to provide improved gloss. It forms mechanically strong and tough films that have a broad useful temperature range. These films are highly resistant to most environmental conditions including gamma radiation and are essentially transparent to ultraviolet radiation. The weathering characteristics of Hylar® 5000 HG coatings lead to excellent performance for the long term. Hylar® 5000 is available only via a licensing program that specifies the composition of Hylar® 5000 HG coatings. A properly formulated finish contains sufficient pigment to make the film totally opaque to ultraviolet radiation at the nominal one mil (0.001 inch) film thickness suggested. SAFETY Hylar® 5000 HG is stable at temperatures up to 600°F (316°C). When it is subjected to temperatures above 600°F (316°C) for extended periods of time, hydrogen fluoride (HF) begins to evolve, and at temperatures above 700°F (371°C) HF evolution becomes rapid. Hylar® 5000 HG exhibits excellent flame resistance; however, in case of fire, HF and traces of potentially toxic fluorocarbons can be formed. HF is corrosive, causes burns on contact, and has an American Conference Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV-TWA) of 3 ppm (2.5 mg/m³) (1984). Thermal decomposition of Hylar® 5000 HG to HF can also occur in a bake oven in the event that temperatures are not controlled properly. In the event of fire, use NIOSH approved self-contained breathing apparatus and skin protection to protect against volatile decomposition products. Hylar® 5000 HG can be disposed of in an approved land fill, but should not be incinerated unless permitted by applicable law and provision is made for absorption of HF. |
技术参数 Technical Data | |||
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热性能 THERMAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
熔融温度 Melting temperature |
164 到 167 | ℃ | ASTM D3418 |
光学性能 optical performance |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
光泽度 gloss |
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60° 60° |
40.0 | min | ASTM D523 |
补充信息 Supplementary information |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
分解温度 decomposition temperature 4 |
382 到 393 | ℃ | TGA |
细度 fineness |
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分散 disperse |
5.50 到 6.00 | ASTM D1210 | |
物理性能 PHYSICAL |
额定值 Nominal Value |
单位 Units |
测试方法 Test Method |
密度 Density 2 |
1.75 到 1.77 | g/cm³ | ASTM D792 |
吸水率 Water absorption rate |
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平衡 balance |
% | ASTM D570 | |
纯度 purity |
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PVDF PVDF |
% | ||
含水量 water content 3 |
% | ||
熔体表观粘度 Apparent viscosity of melt |
Pa·s | ASTM D3835 |
备注 |
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1 一般属性:这些不能被视为规格。 |
2 23/23°C |
3 非吸湿性 |
4 1% 重量,损失在空气中 |
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