挡风玻璃用聚氨酯胶粘剂的研究目录1.引言1.1聚氨酯胶粘剂简介图1.1聚氨酯胶粘剂分子结构软硬链段模型1.2本课题研究的背景1.3本课题研究的内容2.实验理论分析3.实验部分4.结果分析与讨论4.2正交试验结果分析与讨论表4.2剪切强度测试结果的极差分析表试验号/列号1234K114.4114.5314.8912.99剪K214.0714.0914.2014.30切K314.3614.2213.7515.55强k14.804.844.964.33度k24.694.704.734.77k34.794.744.585.18极差R0.340.441.142.56因素主次:DCBA优方案:D3C1B1A1（剪切强度越大越好）表4.3拉伸强度测试结果的极差分析表试验号/列号1234K122.8423.0423.7521.24拉K223.1722.9923.0722.93伸K323.1123.0922.3024.95强k17.617.687.927.08度k27.727.667.697.64k37.707.707.438.32极差R0.330.101.453.71因素主次：DCAB优方案：D3C1A2B3（拉伸强度越大越好）表4.4断裂伸长率测试结果的极差分析表试验号/列号1234断K11556.871564.031586.571647.62裂K21536.501527.151543.251539.27伸K31539.031541.221502.581445.51长k1518.96521.34528.86549.21率k2512.17509.05514.42513.09k3513.01513.74500.86481.84极差R20.3736.8883.99202.11因素主次：DCBA优方案：D1C1B1A1（断裂伸长率越大越好）表4.5吸水率测定结果的极差分析表试验号/列号1234K115.4515.9213.8215.55吸K215.2115.4315.3615.25水K315.4714.7816.9515.33率k15.155.314.615.18k25.075.145.125.08k35.164.935.655.11极差R0.261.143.130.30因素主次：CBDA优方案：C1B3D2A2(吸水率越小越好)对于考察的四个指标来说，重要性程度由大到小依次为剪切强度、拉伸强度、断裂伸长率和吸水率，在确定因素主次和选择因素水平时要以重要性程度为依据来进行。通过综合平衡法选取的最优合成条件为：聚醚多元醇类型为N330，预聚体中异氰酸酯基含量为3%，反应时间为1.5h，反应温度为70℃。5.结论6.存在的不足与建议