废旧聚酯织物原位反应增粘制备再生聚酯单丝研究  

Fabrication of recycled polyester monofilament based on waste polyester from textiles via in-site reaction induced tackifying technology

作　　者：吴文君 孙晓丽 张飞鹏 钱庆荣[1] 陈庆华[1] WU Wenjun;SUN Xiaoli;ZHANG Feipeng;QIAN Qingrong;CHEN Qinghua(Engineering Research Center of Polymer Green Recycling of Ministry of Education,Fujian Key Laboratory of Pollution Control&Resource Reuse,College of Environmental Science and Engineering,Fujian Normal University,Fuzhou 350007,China;Fujian Baichuan Resources Recycling Science&Company,Quanzhou 362000,China)

机构地区：[1]福建师范大学聚合物资源绿色循环利用教育部工程研究中心,福建省污染控制与资源循环利用重点实验室,福建师范大学环境科学与工程学院,福建福州350007 [2]福建省百川资源再生科技股份有限公司,福建泉州362000

出　　处：《再生资源与循环经济》2022年第5期25-29,共5页Recyclable Resources and Circular Economy

基　　金：国家重点研发计划项目(2019YFC1904500);国家自然科学基金项目(21801251);福建省自然科学基金项目(2021J01199)。

摘　　要：针对废旧聚酯织物杂质含量高、粘度波动大、再生产品附加值低的问题,采用原位反应增粘技术,通过“微醇解-自缩聚”工艺实现了废旧聚酯织物再生制备聚酯单丝。以聚酯泡泡料为原料,整个工艺过程包括熔融过滤、反应增粘、熔体输送和纺丝等工序,可实现再生聚酯单丝的连续化生产。研究对比了“微醇解-自缩聚”工艺过程各个阶段再生料的特性粘度和热性能,结果表明该工艺可提升泡泡料的特性粘度达到0.65 dL/g,热性能良好,满足纺丝要求,再生聚酯单丝可应用于生产聚酯拉链,产品性能满足标准QB/T 2173—2014要求。Due to high impurities content and unstable viscosity,waste polyester from textiles have weak process ability.In order to achieve the high-value recycling of waste polyester from textiles,we investigated the in-site reaction induced tackifying technology to produce recycled polyester monofilament via controlled alcoholysis and self-condensation method.The whole process included melting,filtration,reaction induced viscosity increasing,melt conveying and spinning,etc.,which can realize the continuous production of recycled polyester monofilament using waste polyester textiles as raw material.The intrinsic viscosity and thermal properties of the recycled materials in each stage of the process were compared.The results showed that this technology could improve the intrinsic viscosity and thermal performance of waste polyester to meet the spinning requirements.The obtained recycled polyester monofilament was used to produce polyester zippers,which meets the standard requirements of QB/T 2173-2014.

关 键 词：废涤纶纺织品 微醇解 缩聚 原位反应增粘技术 再生聚酯单丝 

分 类 号：X791[环境科学与工程—环境工程]