摘要
通过研究脲醛树脂/竹粉复合材料的流变性能,解决了模压生产过程中流动性不足的问题。选取复合材料中的竹粉目数、热熔胶粉用量、试验温度和施加在复合材料上的压力为正交试验的试验因素。确定优选的工艺参数为:竹粉目数80目、热熔胶粉用量6%、温度145℃、压力30 MPa。复合材料优化试验的测定结果为:剪切速率231.85 s-1,表观黏度793 Pa?s,非牛顿指数0.15,黏流活化能420.40 kJ/mol。
To solve the problem of short of liquidity during molding process, rheological property of ureaformaldehyde resin/bamboo powder composite was studied. Four parameters including particle size of bamboo powder, amount of hot melt adhesive powder, temperature and pressure applied in the composite materials were used as factors of orthogonal experiment. After the experiment and data analysis, optimal parameters are as follows： particle size of bamboo powder is 80 meshes, amount of hot melt adhesive powder is 6%, temperature is 145 ℃ and pressure is 30 MPa. Under these conditions, shearing speed of the composite is 231.85 s-1, apparent viscosity is 793 Pa？s, non-Newtonian index is 0.15 and the apparent viscous activation energy is 420.40 kJ/mol.
出处
《塑料科技》
CAS
北大核心
2014年第8期91-94,共4页
Plastics Science and Technology
基金
河北农业大学青年科学基金
林业公益性行业科研专项(201104004)
关键词
脲醛树脂
竹粉
热熔胶粉
流变性能
Urea-formaldehyde resin
Bamboo powder
Hot melt adhesive powder
Rheological properties
