聚乙烯醇修饰Sb<sub>2</sub>O<sub>3</sub>/氯丁胶乳复合材料的制备及其分散稳定性

谢艳霞; 毕松梅; 王东强; 马明明; 吴飞

doi:10.13801/j.cnki.fhclxb.20171128.003

聚乙烯醇修饰Sb₂O₃/氯丁胶乳复合材料的制备及其分散稳定性

安徽工程大学纺织服装学院, 芜湖 241000

基金项目: 安徽省高等教育提升计划省级科学研究项目（TSKJ2016B30）；安徽工程大学引进人才科研启动基金（2016YQQ006）；地方高校国家级大学生创新创业训练计划项目（201510363124）

详细信息

通讯作者:
谢艳霞,博士,高级工程师,研究方向为高分子复合材料和功能性纳米纤维E-mail:xie_yanxia@ahpu.edu.cn

中图分类号: TQ135.3;TQ337+.1
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出版历程
- 收稿日期: 2017-08-27
- 修回日期: 2017-11-18
- 刊出日期: 2018-09-14

Preparation and dispersion stability of Sb₂O₃/chloroprene latex composite modified with polyvinyl alcohol

School of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, China

摘要

摘要: 制备水基亚微米Sb₂O₃浆液，用聚乙烯醇（PVA）作空间稳定剂对Sb₂O₃表面修饰后，与氯丁胶乳（CRL）复合制备一种阻燃的PVA修饰Sb₂O₃/CRL（Sb₂O₃-PVA/CRL）复合材料。探究了最优修饰工艺及其对Sb₂O₃-PVA/CRL分散稳定性的影响规律，从粒径分布、FTIR和DTA-TGA等角度探讨PVA修饰明显提升Sb₂O₃分散稳定性的作用机制。结果表明，研钵研磨使Sb₂O₃粒径微细化，是制备亚微米Sb₂O₃的有效手段；PVA修饰Sb₂O₃粉末在3 447 cm^-1处的—OH伸缩振动特征峰减弱，1 091 cm^-1处的C—O特征吸收峰消失，推测化学键力是PVA包覆Sb₂O₃粉末的重要方式；获得最优分散稳定性的修饰工艺为：PVA与Sb₂O₃质量比为2%、反应温度为90℃、反应时间为30 min；采用最优修饰工艺制备的Sb₂O₃-PVA/CRL复合材料静置6 h内有好的分散稳定性。
- 胶乳复合材料 /
- 亚微米 Sb₂O₃ /
- PVA修饰 /
- 分散稳定性
Abstract: Water-based suspension of submicron Sb₂O₃ was prepared, and then modified with polyvinyl alcohol (PVA) as a steric stabilizer, the modified Sb₂O₃ was composed with chloroprene latex (CRL) for preparing the flame retardant latex composite (Sb₂O₃-PVA/CRL). The modification parameters and their influences on dispersion stability were investigated. The mechanism of the improved dispersion stability produced with PVA interface modification was estimated in terms of distribution of particle size, FTIR and DTA-TGA analysis. The results show that the grinding of mortar is an effective means of preparing the submicron Sb₂O₃ via micronization action. The stretching vibration peak of -OH groups being weaker at 3 447 cm^-1and the peak of C-O groups disappearing at 1 091 cm^-1 in the FTIR spectra of Sb₂O₃ modified with PVA, concluding that the chemical-bonding plays an important role in the modification. The optimum modification parameters of the best dispersion stability are PVA to Sb₂O₃ mass ratio of 2%, reaction temperature of 90℃ and reaction time of 30 min. The suspension of Sb₂O₃-PVA/CRL has good dispersion stability when it has been stored for 6 h.
- latex composites /
- submicron Sb₂O₃ /
- polyvinyl alcohol modification /
- dispersion stability

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