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© 《China Plastics》
© 《China Plastics》
China Plastics ›› 2022, Vol. 36 ›› Issue (12): 86-91.DOI: 10.19491/j.issn.1001-9278.2022.12.013
• Processing and Application • Previous Articles Next Articles
LI Haifeng1(), QIAO Pengcheng1, SUN Rui2
Received:
2022-09-20
Online:
2022-12-26
Published:
2022-12-20
CLC Number:
LI Haifeng, QIAO Pengcheng, SUN Rui. Research and development of glass fiber reinforced polypropylene composite parking wedge[J]. China Plastics, 2022, 36(12): 86-91.
材料 | 外观 | 密度/g·cm-3 | 拉伸强度/MPa | 弯曲强度/MPa | 弯曲模量/MPa | 断裂伸长率/% | GF含量/% |
---|---|---|---|---|---|---|---|
PP/30 %GF | 黄色细长颗粒 | ≤1.13 | ≥100 | ≥140 | ≥5 500 | ≥6 | 30±5 |
检测标准 | 目测 | GB/T 1033 | GB/T 1040 | GB/T 9341 | GB/T 9341 | GB/T 1040 | GB/T 9345.1 |
材料 | 外观 | 密度/g·cm-3 | 拉伸强度/MPa | 弯曲强度/MPa | 弯曲模量/MPa | 断裂伸长率/% | GF含量/% |
---|---|---|---|---|---|---|---|
PP/30 %GF | 黄色细长颗粒 | ≤1.13 | ≥100 | ≥140 | ≥5 500 | ≥6 | 30±5 |
检测标准 | 目测 | GB/T 1033 | GB/T 1040 | GB/T 9341 | GB/T 9341 | GB/T 1040 | GB/T 9345.1 |
检测项目 | 检测方法 | 技术要求 | 检测结果 |
---|---|---|---|
静压试验 | 设备加载力为7.68 T(相当于零件承载20 T), 试验机压头直径ϕ150 mm,受力面积约0.046 m2 | 承载20 T时无开裂、破损 | 43 T时无开裂、破损 |
冷热循环 | 80 ℃/4 h→室温/0.5 h→-40 ℃/1.5 h→室温/0.5 h→ 70 ℃95 %RH/3 h→室温/0.5 h→-40 ℃/1.5 h→室温/0.5 h;上述为一个循环,共4个循环 | 不得出现开裂、变形、发黏、变色等异常现象 | 无异常 |
落球冲击 | 低温-40 ℃/2 h, 落锤质量535 g,高度50 cm | 不得出现龟裂、破损现象 | 无龟裂、破损现象 |
检测项目 | 检测方法 | 技术要求 | 检测结果 |
---|---|---|---|
静压试验 | 设备加载力为7.68 T(相当于零件承载20 T), 试验机压头直径ϕ150 mm,受力面积约0.046 m2 | 承载20 T时无开裂、破损 | 43 T时无开裂、破损 |
冷热循环 | 80 ℃/4 h→室温/0.5 h→-40 ℃/1.5 h→室温/0.5 h→ 70 ℃95 %RH/3 h→室温/0.5 h→-40 ℃/1.5 h→室温/0.5 h;上述为一个循环,共4个循环 | 不得出现开裂、变形、发黏、变色等异常现象 | 无异常 |
落球冲击 | 低温-40 ℃/2 h, 落锤质量535 g,高度50 cm | 不得出现龟裂、破损现象 | 无龟裂、破损现象 |
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