地铁疏散平台用酚醛玻璃钢的拉挤成型工艺及性能研究

Study on Pultrusion Process and Properties of Phenolic Glass Fiber Reinforced Resin for Subway Evacuation Platform

摘要:

为优化地铁疏散平台用酚醛玻璃钢的拉挤制备工艺，提高生产效率和增强其综合力学性能，对其材料体系的配比及拉挤工艺的优化开展研究工作。首先采用DSC对酚醛树脂体系进行测试，确定了体系的凝胶温度为180 ℃、拉挤速率为250 mm?min^-1。对上述工艺条件下生产的酚醛玻璃钢的弯曲性能进行测试。结果表明，采用偶联剂能有效地提高产品的弯曲强度，最大弯曲强度高达450 MPa。说明，通过控制拉挤温度和速度，可实现酚醛玻璃钢疏散平台的稳定高效生产。

Abstract:

In order to optimize the pultrusion process of the phenolic glass fiber reinforced resin evacuation platform， improve the production efficiency and comprehensive mechanical properties. The research is carried out through the ratio the materials system and the optimization of the pultrusion process. Firstly， differential scanning calorimetry （DSC） was used to test the phenolic resin system for pultrusion process， and the gel and curing temperature of the system were determined. By measuring the gel time at different temperatures， the appropriate process temperature （180 ℃）and pultrusion speed plan， which is 250 mm?min^-1， were formulated. The bending properties of the evacuation platform produced under this process condition is tested. The results show that the use of coupling agent can effectively improve the bending strength of the product， and the maximum bending strength is as high as 450 MPa. By controlling the pultrusion temperature and speed， stable and efficient production of phenolic FRP evacuation platforms can be achieved.