POSS改性环氧树脂制备与性能研究[设计、开题、综述]

BI YE SHE JI

（20 届）

POSS改性环氧树脂制备与性能研究

所在学院

专业班级化学工程与工艺

学生姓名学号

指导教师职称

完成日期年月

摘要：POSS具有三维笼状立体结构的有机—无机纳米杂化材料，可以有效提高环氧树脂的使用温度、抗氧化性能等。本文采用氯甲基POSS(CM-POSS)对E-51树脂/甲基四氢苯酐(简记为E-51/MeTHPA/TEA)体系进行改性研究。化学流变学研究表明：E-51环氧树脂经CM-POSS改性后室温粘度显著增加，而CM-POSS的引入只对E-51/MeTHPA/TEA体系的初始粘度有影响，对低温反应初始阶段的粘度变化影响并不明显。在反应的初始阶段，粘度不高于1500mPa·s时，E-51/MeTHPA/TEA/CM-POSS体系的化学粘度变化符合双Arrhenius经验公式。

关键词：环氧树脂；POSS；有机-无机杂化纳米复合材料；流变性能。

Abstract：POSS is a organic-inorganic hybrid nanocomposites , can improve the thermal properties and oxidation resistance of epoxy systems. In this paper, the triglycidyl p-aminophenol epoxy resin (E-51) was first modified by chloromethyl oligomeric silsesquioxanes (CM-POSS) and then cured by a kinds of curing agents, 4-methyl-tetrahydrophthalic anhydride (MeTHPA) arespectively. The chemo-rheology investigation indicates that the viscosity of E-51 resin was greatly increased after modified with CM-POSS, and the present of CM-POSS in E-51/MeTHPA/TEA had little influence on the initial viscosity, but no evidence was found that it had influence on the viscosity at the initial reaction stage. A rheological model based on dual-Arrhenius equation was established and used to simulate chemo-rheological behavior of the E-51/MeTHPA/TEA/CM-POSS system. The viscosity estimated by the model was in good agreement with that of the experiment results at the initialization reaction stage.

Key words：Epoxy Resin; POSS; Organic-inorganic Hybrid Nanocomposites; Rheological Properties

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目录

摘要.......................................................................................................................................................... I Abstract .................................................................................................................................................. II 1 绪论.................................................................................................................................................... I

1.1 前言......................................................................................................................................... I

1.2 环氧树脂改性进展 (2)

1.2.1 聚合物改性环氧树脂 (2)

1.2.2 无机纳米离子改性环氧树脂 (2)

1.2.3 聚硅氧烷共聚改性环氧树脂 (2)

1.3 POSS改性环氧树脂研究进展 (3)

1.3.1 POSS简介 (3)

1.3.2 POSS改性环氧树脂历史进展 (4)

1.3.3 POSS改性环氧树脂机理 (5)

1.3.4 POSS改性环氧树脂研究现状 (5)

1.3.5 POSS改性环氧树存在的问题 (6)

1.4 POSS纳米结构化合物及聚合物应用领域 (7)

1.5 本课题研究的意义和目标 (7)

2 实验部分 (9)

2.1 仪器、试剂 (9)

2.2 实验步骤 (9)

2.3.1 CM-POSS改性环氧树脂流变特性研究 (9)

2.3.2 CM-POSS的加入量对E-51/MeTHPA/TEA体系粘度影响 (9)

2.3.3 E-51/MeTHPA/CM-POSS/TEA体系化学流变学研究 (10)

3 结果与讨论 (11)

3.1 E-51环氧树脂固化剂用量的确定 (11)

3.1.1 固化剂理论用量的确定 (11)

3.1.2 实际固化剂用量的确定 (11)

3.2 促进剂用量的确定 (11)

3.3 CM-POSS的加入对E-51环氧树脂室温粘度的影响 (12)