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Radici Compounds AC90W
乙缩醛（POM）共聚物
Radici Plastics USA, Inc.
Technical Data
产品说明
AC90W is an acetal copolymer with a viscosity suitable for general purpose injection molding, containing a finely dispersed stabilizer system. This composition provides excellent protection against the effects of prolonged exposure to outdoor weathering or other sources of ultra-violet light. It is internally lubricated for ease of mold release. The natural color of the base resin is not affected, so that AC90W can be made available in a full range of colors.
Acetal copolymer is a highly crystalline engineering thermoplastic based on trioxane, polymerized with a comonomer to provide exceptional thermal stability both in processing and for molded parts which may be exposed to high temperature environments. Acetal copolymer exhibits the characteristics of a true engineering material: predictability of performance in a wide range of environments and for long periods of time. Performance characteristics combine excellent strength, rigidity and toughness, a unique resilience, outstanding static and dynamic fatigue resistance, natural lubricity and resistance to a very wide range of solvents, oils, greases and chemicals, including strong alkalis. Extremely low moisture absorption results in excellent dimensional stability, and therefore an ability to hold precision tolerances in parts exposed to a wide range of humidity.
Versatility and reliability make acetal copolymer the cost effective material of choice for a wide range of applications in all major end-use categories.
The use of AC90W should be considered for applications where resistance to the effects of UV exposure is required, but where the use of a black pigmented compound is not acceptable.
总体
材料状态 • 已商用：当前有效
资料 1 • Technical Datasheet (English)
Search for UL Yellow Card • Radici Plastics USA, Inc.
供货地区 • 北美洲
添加剂 • 润滑剂 • 紫外线稳定剂
• 尺寸稳定性良好 • 耐碱 • 脱模性能良好
• 共聚物 • 耐疲劳性能
• 吸潮性差
• 经润滑 • 耐油性能
性能特点 • 一般目的
• 抗溶解性 • 耐油脂性能
• 有弹性
• 良好的强度 • 热稳定性，良好
• 中等硬度
• 耐化学性良好 • 韧性良好
用途 • 一般目的
外观 • 可用颜色 • 自然色
形式 • 颗粒料
加工方法 • 注射成型
物理性能 额定值单位制 测试方法
比重 1.41g/cm³ ASTM D792
收缩率 ASTM D955
流动: 3.18 mm 2.5%
横向流动: 3.18 mm 1.8%
吸水率 (24 hr) 0.16% ASTM D570
机械性能 额定值单位制 测试方法
抗张强度 (屈服, 23°C) 62.7MPa ASTM D638
伸长率 (断裂, 23°C) 25 到 35% ASTM D638
弯曲模量 (23°C) 2480MPa ASTM D790
弯曲强度 (23°C) 91.4MPa ASTM D790
冲击性能 额定值单位制 测试方法
悬壁梁缺口冲击强度 (23°C, 3.18 mm) 59 到 69J/m ASTM D256
硬度 额定值单位制 测试方法
洛氏硬度 (M 计秤) 80 ASTM D785
热性能 额定值单位制 测试方法
热变形温度 (1.8 MPa, 未退火) 110°C ASTM D648
熔融温度 160 到 165°C ASTM D789
1 / 3 文件号： TDS-66752-zh
Radici Compounds AC90W
乙缩醛（POM）共聚物
Radici Plastics USA, Inc.
注射 额定值单位制
干燥温度 76.7 到 87.8°C
干燥时间 1.0 到 2.0hr
建议注入量 40 到 70%
螺筒后部温度 188°C
螺筒中部温度 193°C
螺筒前部温度 199°C
加工（熔体）温度 193 到 204°C
模具温度 82.2 到 116°C
背压 0.345MPa
螺杆转速 40 到 80rpm
垫层 3.18 到 6.35mm
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