基于聚氨酯高压发泡装置,以异氰酸酯(NCO)和聚醚多元醇(—OH)为原料,在各助剂催化作用下对反应合成聚氨酯的过程进行模拟。利用Aspen Plus软件平台,对聚氨酯高压发泡工艺建立流程模型。考察了异氰酸酯指数(R)、反应温度、催化剂复配比例等因素对聚氨酯工艺的影响。利用Energy Analyzer对数据进行灵敏度分析,得出优化后的工艺操作参数:R=1.2～1.3,反应器温度为60℃,催化剂DMCHA和T-12质量分数分别为2%和0.05%时。在最优参数条件下,工艺时间缩短了12.37%,产品转化率提升了12.19%。这为聚氨酯材料工艺生产提供了非常重要的理论基础和现实意义。
Based on the polyurethane high-pressure foaming system,the process of synthesizing polyurethane using isocyanate (NCO) and polyether polyol (—OH) as raw materials was simulated under the catalytic action of various additives.Using the Aspen Plus software platform,a process model for the high-pressure foaming of polyurethane was established.The effects of isocyanate index (R),reaction temperature,and catalyst ratio on the polyurethane process were investigated.Sensitivity analysis of the data was conducted using Energy Analyzer,leading to optimized operating parameters:R=1.2～1.3,reactor temperature at 60℃,and the mass fractions of catalyst DMCHA and T-12 were 2% and 0.05%,respectively.Under optimal conditions,the process time was reduced by 12.37%,and the product conversion rate increased by 12.19%.This provides a very important theoretical foundation and practical significance for the production process of polyurethane materials.
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基金资助
省产学研合作项目(2035082310);国家自然科学基金(51675248)
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