Preparation of Fluorinated Natural Rubber Latex and Its UV and Ozone Resistance of Latex Film

Shi-hong Cheng; Huan Liu; Jia-jun Cai; Song-yang Li; Fu-chun Zhao; Shuang-quan Liao

doi:10.11777/j.issn1000-3304.2023.23026

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Preparation of Fluorinated Natural Rubber Latex and Its UV and Ozone Resistance of Latex Film

Research Article | 更新时间：2023-09-25

- Preparation of Fluorinated Natural Rubber Latex and Its UV and Ozone Resistance of Latex Film
- ACTA POLYMERICA SINICA Vol. 54, Issue 8, Pages: 1253-1261(2023)
- 作者机构：
  
  海南大学材料科学与工程学院热带岛屿资源先进材料教育部重点实验室海口 570228
- 作者简介：
  
  Fu-chun Zhao, E-mail: psfczhao@hainanu.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2023.23026
  CLC：
- Published：20 August 2023，
  
  Published Online：29 May 2023，
  
  Received：31 January 2023，
  
  Accepted：24 March 2023
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程仕泓,刘欢,蔡嘉俊等.氟修饰天然胶乳的制备及其乳胶膜的耐紫外与耐臭氧特性研究[J].高分子学报,2023,54(08):1253-1261.

Cheng Shi-hong,Liu Huan,Cai Jia-jun,et al.Preparation of Fluorinated Natural Rubber Latex and Its UV and Ozone Resistance of Latex Film[J].ACTA POLYMERICA SINICA,2023,54(08):1253-1261.
程仕泓,刘欢,蔡嘉俊等.氟修饰天然胶乳的制备及其乳胶膜的耐紫外与耐臭氧特性研究[J].高分子学报,2023,54(08):1253-1261. DOI： 10.11777/j.issn1000-3304.2023.23026.

Cheng Shi-hong,Liu Huan,Cai Jia-jun,et al.Preparation of Fluorinated Natural Rubber Latex and Its UV and Ozone Resistance of Latex Film[J].ACTA POLYMERICA SINICA,2023,54(08):1253-1261. DOI： 10.11777/j.issn1000-3304.2023.23026.

摘要

为了解决天然橡胶(natural rubber

NR)中不饱和双键结构所造成的耐老化性能差的问题，基于引入具有优异稳定性的含氟丙烯酸酯组分的策略，在温和条件下，以天然胶乳(NRL)为原料，以甲基丙烯酸十二氟庚酯为单体，在乳液聚合反应体系中制备了氟修饰天然胶乳(FNRL). 结果表明，FNRL具有良好的基本质量指标和稳定性. FNR硫化乳胶膜(FNR-V)具有良好的耐紫外线、耐臭氧性能. 经加速紫外老化试验后，FNR-V乳胶膜的裂纹宽度仅为NR硫化乳胶膜(NR-V)的1/3. 在臭氧老化试验后，FNR-V乳胶膜的表面开裂评价达到1a级，而NR-V乳胶膜的为4c级. 本文在温和条件下成功制备了氟修饰天然胶乳，其硫化乳胶膜相较于纯NR具有显著提高的耐紫外、耐臭氧性，展示出了在更严苛的紫外、臭氧环境条件下的良好应用前景.

Abstract

Based on a strategy of combining fluorinated components with excellent stability

fluorinated natural rubber latex (FNRL) was synthesized by emulsion polymerization with NR latex (NRL) using fluorinated acrylates as monomers under mild conditions to solve the problem of poor ageing resistance caused by the unsaturated structure in natural rubber (NR). The fluorination of NRL resulted in the synthesis of FNRL with high stability and FNR latex films with excellent UV and ozone resistance. The results show that FNRL has high stability and its mechanical stability and thermal stability are qualified

which is slightly better than that of the commercial concentrated latex. FNR vulcanized (FNR-V) latex film has better UV and ozone resistance than those of NR vulcanized (NR-V) latex film. After accelerated UV aging test

the crack width of the FNR-V latex film is only 1/3 of that of the NR-V latex film. After ozone aging test

the surface cracking of FNR-V latex films is evaluated at level 1a

while that of NR-V is level 4c. This study provides a feasible way of fluorinated NRL

whose vulcanized latex film has significant improvements in UV and ozone resistance compared to NR latex film

and FNR-V latex film is expected to be widely used under more severe climatic conditions (UV and ozone).

关键词

氟修饰天然胶乳稳定性耐紫外耐臭氧

Keywords

Fluorinated NR latexStabilityUV resistanceOzone resistance

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