描述

尼龙66树脂耐高温、高强度、阻燃、增韧、抗寒-40摄氏度

耐高温尼龙66树脂

产品详细信息

尼龙66树脂耐高温性

在聚酰胺材料中，PA66塑料的熔点较高。它是一种半结晶材料。PA66即使在更高的温度下也能保持强大的强度和刚度。PA66塑料成型后仍具有吸湿性，吸湿程度主要取决于材料组成、壁厚和环境条件。在产品设计中，必须考虑吸湿对几何稳定性的影响。PA66塑料粘度低，所以流动性好（但不如PA6）。此属性可用于处理非常薄的组件。它的粘度对温度变化非常敏感。PA66的收缩率在1%~2%之间，加入玻璃纤维添加剂可使收缩率降至0.2%~1%。收缩率在流动方向和垂直于流动方向的方向上差异很大。PA66塑料的热性能，熔点是晶体熔化的温度。对于结晶聚合物PA66塑料，它显示了一个明确的熔点。根据所采用的试验方法，熔点在259~267℃范围内波动。通常，通过差热分析测得的PA66塑料熔点为264°C。如果将体积膨胀系数显示最大值的温度视为熔点，尼龙66的熔点温度范围为246至263°C。接近259°C的理论熔点。PA66塑料的注射特性。干燥处理：如果材料在加工前已密封，则无需干燥。但是，如果打开储存容器，建议在85℃的热空气中干燥。如果湿度大于0.2%，则需要在105°C下真空干燥12小时

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Nylon 66 Resin High Temperature Resistance

High temperature,
high strength,
fire retardant，
Toughening,
anti-cold -40 degrees centigrade.

Nylon 66 Resin High Temperature Resistance

Product Details

Nylon 66 resin high temperature resistance

PA66 plastic has a higher melting point among polyamide materials. It is a semi-crystalline-crystalline material. PA66 can maintain strong strength and rigidity even at higher temperatures. PA66 plastic still has hygroscopicity after molding, the degree of which mainly depends on the composition of the material, wall thickness and environmental conditions. In product design, the influence of moisture absorption on geometric stability must be considered. PA66 plastic has low viscosity, so it has good fluidity (but not as good as PA6). This property can be used to process very thin components. Its viscosity is very sensitive to temperature changes. The shrinkage rate of PA66 is between 1%~2%, adding glass fiber additives can reduce the shrinkage rate to 0.2%~1%. The shrinkage rate differs greatly in the direction of the flow and the direction perpendicular to the direction of the flow. The thermal properties of PA66 plastic, the melting point is the temperature at which the crystal melts. For the crystalline polymer PA66 plastic, it shows a clear melting point. According to the adopted test method, the melting point fluctuates in the range of 259~267℃. Generally, the melting point of PA66 plastic measured by differential thermal analysis is 264°C. If the temperature at which the volume expansion coefficient shows the maximum value is regarded as the melting point, the melting point temperature of nylon-66 ranges from 246 to 263°C. Close to the theoretical melting temperature of 259°C. The injection characteristics of PA66 plastic. Drying treatment: If the material is sealed before processing, then there is no need to dry it. However, if the storage container is opened, it is recommended to dry it in 85C hot air. If the humidity is greater than 0.2%, vacuum drying at 105°C for 12 hours is required.

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