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摘要：本文研究了氨纶废丝固相醇解制备再生聚氨酯橡胶，并以三元尼龙为改性剂改性再生聚氨酯橡胶。通过改变醇解条件，设计正交试验，分析得出最佳醇解条件。改变三元尼龙添加量，研究不同三元尼龙添加量对聚氨酯机械性能的影响，并进行了不同三元尼龙添加量的阿克隆磨耗测试。综合上述研究结果得出，当醇解时间40min、醇解温度为190℃、醇解剂为5%(PEG6000)、催化剂为2%(CaO)、 4%三元尼龙时可得到性能最佳的改性聚氨酯橡胶。拉伸强度为20.12MPA，硬度78A，撕裂45.06KN/m。22800
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毕业论文关键词：再生聚氨酯；改性；三元尼龙；醇解
Study on modified and regeneration polyurethane with ternary nylon
Abstract: The renewable polyurethane rubber was prepared by solid alcoholysis of spandex silk and modified by ternary nylon in the study. By changing the conditions of alcohol solution, different orthogonal experiment was designed to study the effects of different conditions on the alcohol solution of the mechanical properties of polyurethane. By changing the amount of ternary nylon, studying the effects of different amounts of ternary nylon on the mechanical properties of polyurethane, and having different akron abrasion tests. The results show that when the kneading time is 40mins ,the kneading temperature is 190 ℃, alcoholysis agent is 5%,the catalysator is 2%(CaO) and the ternary nylon is 4%, the overall performance of the renewable polyurethane rubber is best., and the tensile strength is 20.12MPA, hardness is 78A, tearing is 45.06KN/m in this condition.
Keywords: renewable polyurethane; modified; ternary nylon; alcoholysis
目录
1 绪论 1
1.1 聚氨酯概述 1
1.2 氨纶废丝的回收与再利用研究 1
1.2.1 聚氨酯水解法 1
1.2.2 聚氨酯醇解法 1
1.2.3 醇解法化学原理 2
1.3 聚氨酯改性 3
1.3.1 有机硅改性聚氨酯 3
1.3.2 丙烯酸酯改性聚氨酯 3
1.3.3 环氧改性聚氨酯 3
1.3.4 异氰脲酸酯改性聚氨酯 3
1.3.5 天然产物改性聚氨酯 4
1.4 三元尼龙改性 4
1.4.1 三元尼龙改性氯化聚乙烯 4
1.4.2 三元尼龙改性丁腈橡胶 4
1.5 三元尼龙改性聚氨酯 5
2 本论文研究的目的、意义及内容 5
2.1 研究目的及意义 5
2.1.1 研究目的 5
2.1.2 回收废旧聚氨酯的意义 5
2.2 研究内容 6
3 实验部分 7
3.1 实验原料及仪器 7
3.2 氨纶废丝固相醇解制备聚氨酯橡胶 8
3.2.1 氨纶醇解 8
3.3 三元尼龙改性再生聚氨酯橡胶 9
3.4 实验步骤 9
3.5 性能测试 9
3.5.1 拉伸性能测试 9
3.5.2 撕裂强度测试 10
3.5.3 阿克隆磨耗测定 10
3.5.4 硬度测试 10