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中国塑料 ›› 2021, Vol. 35 ›› Issue (4): 5-11.DOI: 10.19491/j.issn.1001-9278.2021.04.002
收稿日期:
2020-09-17
出版日期:
2021-04-26
发布日期:
2021-04-21
基金资助:
WU You, WANG Bohua, SUN Jianjian, JIN Yujuan()
Received:
2020-09-17
Online:
2021-04-26
Published:
2021-04-21
Contact:
JIN Yujuan
E-mail:jinyujuan@th.btbu.edu.cn
摘要:
以端环氧基型超支化聚合物(EHBP)为改性剂,采用熔融共混法制备了聚碳酸亚丙酯(PPC)/聚丁二酸丁二醇酯(PBS)/ EHBP共混物;通过动态热机械分析仪、热失重分析仪、力学性能测试、旋转流变仪、扫描电子显微镜等对其进行表征。结果表明,加入EHBP使PPC和PBS间的玻璃化转变温度差(ΔTg)减小,表明其界面相容性得到改善;当添加0.5 %的EHBP时,PPC/PBS/EHBP共混物的拉伸强度提升了68.7 %,冲击强度提升了81.2 %;当添加1.0 %的EHBP时,断裂伸长率增加了74.9 %;共混物的复数黏度随EHBP添加量的增加而减小。
中图分类号:
吴悠, 王博华, 孙健健, 靳玉娟. 端环氧基型超支化聚合物对PPC/PBS共混物的改性研究[J]. 中国塑料, 2021, 35(4): 5-11.
WU You, WANG Bohua, SUN Jianjian, JIN Yujuan. Study on Modification of PPC/PBS Blends with Epoxy⁃terminated Hyperbranched Polymer[J]. China Plastics, 2021, 35(4): 5-11.
样品 编号 | PPC 含量/% | PBS 含量/% | EHBP 含量/% | DDM 含量/% |
---|---|---|---|---|
1# | 70.000 | 30.000 | 0.0 | 0.00 |
2# | 69.895 | 29.955 | 0.1 | 0.05 |
3# | 69.475 | 29.775 | 0.5 | 0.25 |
4# | 68.950 | 29.550 | 1.0 | 0.50 |
5# | 68.425 | 29.325 | 1.5 | 0.75 |
6# | 67.900 | 29.100 | 2.0 | 1.00 |
样品 编号 | PPC 含量/% | PBS 含量/% | EHBP 含量/% | DDM 含量/% |
---|---|---|---|---|
1# | 70.000 | 30.000 | 0.0 | 0.00 |
2# | 69.895 | 29.955 | 0.1 | 0.05 |
3# | 69.475 | 29.775 | 0.5 | 0.25 |
4# | 68.950 | 29.550 | 1.0 | 0.50 |
5# | 68.425 | 29.325 | 1.5 | 0.75 |
6# | 67.900 | 29.100 | 2.0 | 1.00 |
样品 | Tg1/oC | Tg2/oC | ΔTg /oC |
---|---|---|---|
1# | -42.0 | 35.0 | 77.0 |
2# | -38.0 | 34.2 | 72.2 |
3# | -37.5 | 33.6 | 71.1 |
4# | -40.0 | 33.0 | 73.0 |
5# | -39.7 | 32.7 | 72.4 |
6# | -39.2 | 31.5 | 70.7 |
样品 | Tg1/oC | Tg2/oC | ΔTg /oC |
---|---|---|---|
1# | -42.0 | 35.0 | 77.0 |
2# | -38.0 | 34.2 | 72.2 |
3# | -37.5 | 33.6 | 71.1 |
4# | -40.0 | 33.0 | 73.0 |
5# | -39.7 | 32.7 | 72.4 |
6# | -39.2 | 31.5 | 70.7 |
样品 | T5%/℃ | T50%/℃ | Tmax1/℃ | Tmax2/℃ | 500 ℃ 残炭率/% |
---|---|---|---|---|---|
1# | 277.0 | 310.2 | 302.3 | 399.1 | 3.344 |
2# | 276.9 | 311.8 | 298.7 | 395.6 | 3.516 |
3# | 272.4 | 307.4 | 292.7 | 385.5 | 4.143 |
4# | 271.6 | 303.4 | 287.1 | 374.9 | 4.054 |
5# | 271.0 | 302.8 | 286.6 | 370.9 | 4.102 |
6# | 270.8 | 302.8 | 285.1 | 370.4 | 3.399 |
样品 | T5%/℃ | T50%/℃ | Tmax1/℃ | Tmax2/℃ | 500 ℃ 残炭率/% |
---|---|---|---|---|---|
1# | 277.0 | 310.2 | 302.3 | 399.1 | 3.344 |
2# | 276.9 | 311.8 | 298.7 | 395.6 | 3.516 |
3# | 272.4 | 307.4 | 292.7 | 385.5 | 4.143 |
4# | 271.6 | 303.4 | 287.1 | 374.9 | 4.054 |
5# | 271.0 | 302.8 | 286.6 | 370.9 | 4.102 |
6# | 270.8 | 302.8 | 285.1 | 370.4 | 3.399 |
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