ANALYSIS OF REACTION INJECTION-MOLDING PROCESS OF POLYURETHANE-UNSATURATED POLYESTER BLENDS .1. COMPUTER-SIMULATION

被引：17

作者：

KIM, JH ^{[1
]}

KIM, SC ^{[1
]}

机构：

[1] KOREA ADV INST SCI & TECHNOL,DEPT CHEM ENGN,SEOUL 131,SOUTH KOREA

来源：

POLYMER ENGINEERING AND SCIENCE | 1987年 / 27卷 / 16期

关键词：

COMPUTER SIMULATION - MATHEMATICAL MODELS - POLYESTERS - Blending - POLYURETHANES - Blending;

D O I：

10.1002/pen.760271607

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A computer simulation model was developed to analyze the reaction injection molding (RIM) process of polyurethane and unsaturated polyester blends. The reaction kinetics and viscosity functions of each component were obtained through actual experiments, and a mathematical scheme for numerical calculation was set up in cylindrical coordinates to predict the temperature and conversion profiles within a disc-type mold. The temperature change calculated from the simulation was compared with the temperature rise measured in actual RIM experiments. The effects of the feed temperature, wall temperature, and catalyst levels on the maximum exothermic temperature and the demolding time were evaluated in a search for the optimum processing conditions.

引用

页码：1243 / 1251

页数：9

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