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Radici Compounds AC90GR25L BK20
乙缩醛（POM）共聚物
Radici Plastics USA, Inc.
Technical Data
产品说明
AC90GR25L BK20 is an acetal copolymer reinforced with 25% glass fiber, coupled to achieve optimum adhesion at the glass fiber/polymer interface and incorporating 2% finely dispersed carbon black. The inclusion of carbon black provides excellent protection against the effects of exposure to prolonged outdoor weathering or to other sources of ultra-violet light. Coupling of the glass fiber results in outstanding strength and rigidity, maintained even at higher temperatures, combined with excellent practical toughness. Incorporation of glass fiber also further improves dimensional stability over a broad temperature range.
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.
Typical of all acetal copolymer formulations, AC90GR25L BK20 exhibits excellent resistance to the effects of a broad range of chemicals, oils, solvents and greases, as well as very low moisture absorption.
AC90GR25L BK20 should be considered for applications where the fundamental benefits of using acetal are required, but where the outstanding strength and rigidity, especially at high temperature, and dimensional stability benefits of this reinforced compound, are required, combined with resistance to prolonged outdoor weathering exposure.
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
填料/增强材料 • 玻璃纤维增强材料, 25% 填料按重量
添加剂 • 碳黑 (2%)
• 尺寸稳定性良好 • 良好的强度 • 热稳定性，良好
• 共聚物 • 耐化学性良好
• 韧性良好
性能特点 • 结晶 • 耐气候影响性能良好
• 吸潮性差
• 抗溶解性 • 耐油性能
• 中等硬度
• 抗紫外线性能良好 • 耐油脂性能
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 1.58g/cm³ ASTM D792
收缩率 ASTM D955
流动: 3.18 mm 0.40%
横向流动: 3.18 mm 1.4%
吸水率 (24 hr) 0.27% ASTM D570
机械性能 额定值单位制 测试方法
抗张强度 (屈服, 23°C) 121MPa ASTM D638
伸长率 (断裂, 23°C) 2.0 到 3.0% ASTM D638
弯曲模量 (23°C) 8270MPa ASTM D790
弯曲强度 (23°C) 186MPa 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) 85J/m ASTM D256
硬度 额定值单位制 测试方法
洛氏硬度 (M 计秤) 84 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) 160°C ASTM D648
熔融温度 160 到 165°C ASTM D789
注射 额定值单位制
干燥温度 93.3 到 104°C
干燥时间 3.0hr
建议注入量 40 到 70%
1 / 3 文件号： TDS-66748-zh
Radici Compounds AC90GR25L BK20
乙缩醛（POM）共聚物
Radici Plastics USA, Inc.
注射 额定值单位制
螺筒后部温度 210°C
螺筒中部温度 210°C
螺筒前部温度 210°C
加工（熔体）温度 193 到 227°C
模具温度 93.3 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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