| 环氧树脂／PHMCD体系相区尺寸分布与冲击强度 |
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| 引用本文： | 陈同薏,白耀文,孙仁慧.环氧树脂／PHMCD体系相区尺寸分布与冲击强度[J].材料研究学报,1998,12(5):487-491. |
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| 作者姓名： | 陈同薏 白耀文 孙仁慧 |
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| 作者单位： | 天津大学!天津市，300072 |
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| 摘 要： | 用扫描隧道显微镜，扫描电子显微镜，透射电子显微镜，差示扫描量热分析等研究了环氧树奚（ＥＰ）／聚六亚甲基碳酸酯二醇（ＰＨＭＣＤ）增韧体系（ＥＰ／ＰＨＭＣＤ）的粒径分布与冲击强度的关系。结果表明，一步加料法得到的固化物中的ＰＨＭＣＤ的粒径呈单峰分布；予反应法得到的固化物中ＰＨＭＣＤ的粒径呈双峰分布，而且固化物的冲击强度较高。
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| 关 键 词： | 环氧树脂 PHMCD 增韧 粒径分布 冲击强度 |
| 收稿时间： | 1998-10-25 |
| 修稿时间： | 1998-10-25 |
RELATIONSHIP BETWEEN IMPACT STRENGTH AND DOMAIN SIZE DISTRIBUTION OF EPOXY RESIN/PHMCD SYSTEMS |
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| CHEN Tonghui,BAI Yaowen,SUN Renhui.RELATIONSHIP BETWEEN IMPACT STRENGTH AND DOMAIN SIZE DISTRIBUTION OF EPOXY RESIN/PHMCD SYSTEMS[J].Chinese Journal of Materials Research,1998,12(5):487-491. |
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| Authors: | CHEN Tonghui BAI Yaowen SUN Renhui |
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| Affiliation: | CHEN Tonghui,BAI Yaowen,SUN Renhui(Department of Applied Chemistry,Tianjin University,Tianjin,) |
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| Abstract: | Epoxy resin (EP)/Polyhexamethylene Carbonate Diol (PHMCD) systems were pre-pared by empolying two types of mixing methods. The reIationship between PHMCD size distribution and impact Strenght of EP/PHMCD was investigated by scanning tunneI microscoPy (STM), scan-ning eleCtron microscopy (SEM) and differential scanning caIorimetry (DSC). The resuIts show thatthe size of PHMCD region appears a unimodal distribution if the samples are prepared by one-stepmixing method. Howevre, in the case of prereaction method, the size distribution of PHMCD region isbimodal. The impact Strength of the epoxy with bimodal distribution of PHMCD region is higher thanthat of the epoxy with unimodal diStribution. |
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| Keywords: | epoxy resin polyhexamethylene carbonate diol toughen domain size distribution |
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