美国首诺PA66 VYDYNE 21SPC 产品说明:
Vydyne 21SPC is a general-purpose PA66 resin. Available in natural color. It is designed principally for injection-molding fabrication. This resin offers a well balanced combination of engineering properties characterized by high strength; rigidity; good toughness; high melt point; good surface lubricity; abrasion resistance; and resistance to many chemicals, machine and motor oils, solvents and gasoline.
Vydyne 21SPC permits production of molded parts with good initial color plus good property and color retention when using regrind. This resin is recognized by Underwriters Laboratories and conforms to the requirements of many industrial, federal and military specifications for premium-quality, general-purpose PA66 resins.
Internally and externally lubricated for improved machine feed and exceptional mold release. Vydyne 21SPC is intended for use in high-productivity applications. In many applications, the molding cycle can be reduced because parts may be removed from the cavity at higher temperatures. In difficult molds where parts have a tendency to stick in the cavity, Vydyne 21SPC can reduce or eliminate the need for mold release sprays. Critical molded-part dimensions should be checked against specifications before implementing shorter molding cycles on a routine production basis.
物理性能 | 干燥 | 调节后的 | 单位制 | 测试方法 |
---|---|---|---|---|
密度 | 1.14 | -- | g/cm3 | ISO 1183 |
收缩率 | ISO 294-4 | |||
垂直流动方向 : 23°C, 2.00 mm | 1.7 | -- | % | ISO 294-4 |
流动方向 : 23°C, 2.00 mm | 1.8 | -- | % | ISO 294-4 |
吸水率 | ISO 62 | |||
23°C, 24 hr | 1.2 | -- | % | ISO 62 |
平衡, 23°C, 50% RH | 2.4 | -- | % | ISO 62 |
室外适用性 | f2 | -- | UL 746C |
机械性能 | 干燥 | 调节后的 | 单位制 | 测试方法 |
---|---|---|---|---|
拉伸模量 (23°C) | 3100 | 1400 | MPa | ISO 527-2 |
拉伸应力 | ISO 527-2 | |||
屈服, 23°C | 82.0 | 55.0 | MPa | ISO 527-2 |
断裂, 23°C | 55.0 | 45.0 | MPa | ISO 527-2 |
拉伸应变 (屈服, 23°C) | 5.0 | 25 | % | ISO 527-2 |
标称拉伸断裂应变 (23°C) | 25 | > 50 | % | ISO 527-2 |
弯曲模量 (23°C) | 2900 | 1500 | MPa | ISO 178 |
弯曲强度 (23°C) | 80.0 | 50.0 | MPa | ISO 178 |
泊松比 | 0.40 | -- | ISO 527 |
尼龙中的主要品种是尼龙6和尼龙66,占绝对主导地位,尼龙6为聚己内酰胺,而尼龙66为聚己二酸己二胺,尼龙66比尼龙6要硬l2%;其次是尼龙11,尼龙12,尼龙610,尼龙612,另外还有尼龙1010、尼龙46、尼龙7、尼龙9、尼龙13,新品种有尼龙6I、尼龙9T和特殊尼龙MXD6(阻隔性树脂)等,尼龙的改性品种数量繁多,如增强尼龙、单体浇铸尼龙(MC尼龙)、反应注射成型(RIM)尼龙、芳香族尼龙、透明尼龙、高抗冲(超韧)尼龙、电镀尼龙、导电尼龙、阻燃尼龙,尼龙与其他聚合物共混物和合金等,满足不同特殊要求,广泛用作金属,木材等传统材料代用品。
PA特性
尼龙作为大用量的工程塑料,广泛用于机械、汽车、电器、纺织器材、化工设备、航空、冶金等领域。
成为各行业中不可缺少的结构材料,其主要特点如下:
1.优良的力学性能。尼龙的机械强度高,韧性好。
2.自润性、耐摩擦性好。尼龙具有很好的自润划性,摩擦系数小,从而,作为传动部件其使用寿命长。
3.优良的耐热性。如尼龙46等高结晶性尼龙的热变形温度很高,可在150℃下长期期使用。PA66经过
玻璃纤维增强以后,其热变形温度达到250℃以上。
4.优异的电绝缘性能。尼龙的体积电阻很高,耐击穿电压高,是优良的电气、电器绝缘材料。
5.优良的耐气候性。
6.吸水性。尼龙吸水性大,饱和吸水可达到3%以上。在一定程度影响制件的尺寸稳定性。