CAJ | 학술논문

采用聚合物动态流变测试仪研究了含回收料的人造草丝熔体的流变性能,探讨了回收料用量、温度、口模长径比对熔体表观黏度和挤出胀大比的影响.结果表明,人造草丝熔体属于假塑性熔体,其表观黏度随剪切速率和回收料用量的增加而降低.在剪切速率<500 s~(-1)时,回收料用量越低,熔体的表观黏度降低越明显;剪切速率>1 800s~(-1)时,熔体的表观黏度变化平缓且较为接近.对于100%回收料草丝熔体,其表观黏度随温度的升高和口模长径比的减小而降低;挤出胀大比则随温度的升高和口模长径比的增大而降低.
채용취합물동태류변측시의연구료함회수료적인조초사용체적류변성능,탐토료회수료용량、온도、구모장경비대용체표관점도화제출창대비적영향.결과표명,인조초사용체속우가소성용체,기표관점도수전절속솔화회수료용량적증가이강저.재전절속솔<500 s~(-1)시,회수료용량월저,용체적표관점도강저월명현;전절속솔>1 800s~(-1)시,용체적표관점도변화평완차교위접근.대우100%회수료초사용체,기표관점도수온도적승고화구모장경비적감소이강저;제출창대비칙수온도적승고화구모장경비적증대이강저.
The rheological properties of recovery artificial turf melt were studied by polymer dynamic theological tester, discussed the effects of the content of artificial turf waste (ATW), temperature and length-diameter ratio of die on the apparent viscosity and die swell ratio. The results showed that artificial turf melt can he identified as pseudo plastic fluid and the apparent viscosity of melt decreased as the content of ATW increasing. When the shear rate was lower than 500 s~(-1), the less ATW content, the more the apparent viscosity of melt decreased. When the shear rate was higher than 1 800 s~(-1), the apparent viscosity varied gently. While the apparent viscosity of melt decreased with the increasing of the temperature and reducing of the length-diameter ratio of capillary, with the temperature and length-diameter ratio of capillary increasing, the die swell ratio of melt reduced.