两步辐射接枝法制备抗熔滴涤纶织物

陈旭; 王月; 彭静; 李久强; 翟茂林

doi:10.11777/j.issn1000-3304.2017.16184

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两步辐射接枝法制备抗熔滴涤纶织物

研究论文 | 更新时间：2021-05-18

- 两步辐射接枝法制备抗熔滴涤纶织物
- Anti-dripping PET Fabrics Prepared by Two Steps Radiation-induced Grafting
- 高分子学报 2017年第4期页码：669-675
- 作者机构：
  
  北京大学化学与分子工程学院教育部高分子化学与物理重点实验室北京分子科学国家实验室北京 100871
- 作者简介：
  
  翟茂林, E-mail: mlzhai@pku.edu.cn Mao-lin Zhai, E-mail: mlzhai@pku.edu.cn
- 基金信息：
  
  国际原子能机构协作项目(RAS1014)
- DOI：10.11777/j.issn1000-3304.2017.16184
  中图分类号：
- 纸质出版日期：2017-4-20，
  
  收稿日期：2016-5-23，
  
  修回日期：2016-6-15，
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陈旭, 王月, 彭静, 李久强, 翟茂林. 两步辐射接枝法制备抗熔滴涤纶织物[J]. 高分子学报, 2017,(4):669-675.

Xu Chen, Yue Wang, Jing Peng, Jiu-qiang Li, Mao-lin Zhai. Anti-dripping PET Fabrics Prepared by Two Steps Radiation-induced Grafting[J]. Acta Polymerica Sinica, 2017,(4):669-675.
陈旭, 王月, 彭静, 李久强, 翟茂林. 两步辐射接枝法制备抗熔滴涤纶织物[J]. 高分子学报, 2017,(4):669-675. DOI： 10.11777/j.issn1000-3304.2017.16184.

Xu Chen, Yue Wang, Jing Peng, Jiu-qiang Li, Mao-lin Zhai. Anti-dripping PET Fabrics Prepared by Two Steps Radiation-induced Grafting[J]. Acta Polymerica Sinica, 2017,(4):669-675. DOI： 10.11777/j.issn1000-3304.2017.16184.

摘要

以涤纶（PET）为基材，利用两步

辐射接枝法在PET织物表面依次引发甲基丙烯酸缩水甘油酯（GMA）/二乙烯苯（DVB）和乙烯基磷酸二甲酯（DMVP）接枝共聚，制备了新型抗熔滴PET织物.接枝率随吸收剂量和单体浓度的增加而增加，随剂量率增加而下降.傅里叶红外（FTIR）、X射线光电子能谱（XPS）和热重分析（TGA）的分析结果表明在PET织物上成功引入目标接枝聚合物.相比PET织物，辐射改性PET织物的拉伸强度以及断裂伸长率均有所提高.通过引入交联网状结构以及促进成炭的含磷接枝聚合物，PET织物的抗熔滴特性得到了明显改善，燃烧过程中平均产生一滴熔滴的时间：PET为3.0 s/n，PET接枝PGMA/DVB后延长为17.0 s/n，而进一步接枝PDMVP后在整个燃烧过程中均不产生熔滴.这种新型的方法有望用于PET织物防护服抗熔滴性能的改善.

Abstract

Novel anti-dripping polyethylene terephthalate (PET) fabrics were successfully prepared by two-step gamma radiation-induced grafting polymerization of glycidyl methacrylate (GMA)/divinylbenzene (DVB) and dimethyl vinylphosphonate (DMVP) onto the surface of PET fabrics. The grafting yield increased with the increase of absorbed dose; under the absorbed dose of 21 kGy and 200 kGy

it reached 105.9% and 10.2% for GMA/DVB and DMVP

respectively. Similarly

it was noted that the grafting yield increased with monomer concentration while decreased with the dose rate. Moreover

it was confirmed by FTIR

XPS and TGA analyses that PET fabrics had been successfully modified. FTIR result showed the characteristic vibration absorption peaks of epoxy group and P―O for modified PET at 905 and 1041 cm

-1

respectively. Through XPS

the characteristic peaks of phosphorus were recognized

including P2s and P2p. TGA experiment indicated that after PDMVP grafting

thermal stability of the fabric was enhanced by the introduced phosphorus and also the formed protecting carbon layer. Compared with original PET fabrics

the tensile strength of modified PET fabrics was increased by 0.79 kN/m and 0.82 kN/m for grafting of PGMA/DVB and PDMVP

and their elongation at break increased by 11.68% and 9.69%

respectively. The results indicated that the mechanical properties of modified PET fabrics were improved at a certain extent. Additionally

the performance of anti-dripping was improved remarkably after radiation modification due to the introduction of crosslinking network and phosphorus-containing PDMVP chain. The time of per droplet generation during the combustion of PET was 3.0 s/n

and that of PET-

-PGMA/DVB was 17.0 s/n; there was no droplet after further grafting of PDMVP. The morphologies of PET fabrics before and after radiation modification as well as after combustion were observed by SEM and it was found that the modified PET fabrics by grafting of PGMA/DVB and PDMVP retained the fabric structure after combustion.

关键词

抗熔滴PET织物甲基丙烯酸缩水甘油酯乙烯基磷酸二甲酯辐射接枝

Keywords

Anti-drippingPET fabricsGMADMVPRadiation-induced grafting

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