美国杜邦PA66 103HSL批发价格 货源充足
价格：26.00起
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产品数量：
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关 键 词：103HSL批发价格,美国杜邦PA66
行 业：塑料 通用/工程塑料 工程塑料
发布时间：2021-06-23
PA66简介：尼龙（Nylon），中文名聚酰胺，英文名称Polyide（简称PA），是分子主链上含有重复酰胺基团—[NHCO]—的热塑树脂总称。其命名由合成单体具体的碳原子数而定。是美国的化学工业公司──杜邦公司化学家卡罗瑟斯和他的科研小组发明的。 尼龙PA66；聚己二酰己二胺；英文名：Polyide 66，缩写 nylon 66。 CAS编号：32131-17-2 尼龙PA66是PA系列中机械强度、应用广的品种,因其结晶度高,故其刚、耐热都较高.
PA66 process: drying: if the material is sealed before processing, there is no need to dry. However, if the storage container is opened, drying in hot air at 85 ℃ is recoended. If the humidity is higher than 0.2%, vacuum drying at 105 ℃ for 12 hours is required. Melting temperature: 260 ~ 290 ℃. For gss additive products, 275 ~ 280 ℃. The melting temperature should not be higher than 300 ℃.
The development of PA66: in the te 1940s, Dopont company in the United States realized the industrial production of PA66. At present, there are more than 20 kinds of nylon resins in the world aording to their structures, with more than 800 brand numbers. The product ne is determined by the number of carbon atoms in the repeating unit of nylon macromolecule. The general formu can be written as nylon or Pa. There are PA6, PA66, PA11, PA12, PA610, pa612, PA1010, PA46, PA6T, PA9T, etc. ong them, PA6 and PA66 are the main varieties, aounting for about 92% of the total ount of PA engineering pstics.
Runner and gate of PA66 processing: because the solidification time of PA66 is very short, the location of gate is very important. The gate dieter should not be less than 0.5 * t (where t is the thickness of the pstic part). If a hot runner is used, the gate size should be smaller than that of a conventional runner, as the hot runner can help prevent premature solidification of the material. If a submerged gate is used, the minimum dieter of the gate should be 0.75.
PA66基本物：PA66至今仍是重要的品种。PA66的熔点、抗张强度、抗弯强度以及硬度都是尼龙家族中的，所以被广泛用于各个领域，随着聚合物-无机纳米复合材料研究的深入。在较高温度也能保持较强的强度和刚度。PA66的熔点：260℃ ；它是一种半晶体-晶体材料。PA66对许多溶剂具有抗溶，但对酸和其它一些氯化剂的抵抗力较弱。 PA66的收缩率在1%~2%之间，加入玻璃纤维添加剂可以将收缩率降低到0.2%-1%。PA66的粘较低，因此流动很好。这个质可以用来加工很薄的元件。它的粘度对温度变化很敏感。在成型后仍然具有吸湿，其程度主要取决于材料的组成、壁厚以及环境条件。在产品设计时，一定要考虑吸湿对几何稳定的影响。
PA66应用领域：
1、广泛应用于机械、仪器仪表、汽车部件、电子电气、铁路、家电、通讯、纺机、休闲用品、油管、油箱及一些精密工程制品。
2、电子电器：连接器、卷线轴、计时器、护盖断路器、开关壳座
汽车： 散热风扇、门把、油箱盖、进气隔栅、水箱护盖、灯座
3、工业零件：椅座、输框、溜冰鞋底座、纺织梭、踏板、滑输
