纺织学报 ›› 2021, Vol. 42 ›› Issue (04): 55-61.doi: 10.13475/j.fzxb.20200800207

• 纤维材料 • 上一篇    下一篇

聚乙烯醇增强氯化聚乙烯-受阻酚阻尼复合材料的制备及其性能

姜生1,2(), 吉利梅1,2   

  1. 1.江苏工程职业技术学院 科技处, 江苏 南通 226001
    2.江苏省先进纺织工程中心, 江苏 南通 226001
  • 收稿日期:2020-08-03 修回日期:2021-01-05 出版日期:2021-04-15 发布日期:2021-04-20
  • 作者简介:姜生(1971—),男,教授,博士。主要研究方向为橡塑功能材料的研发。E-mail: jiangsheng2437@126.com。
  • 基金资助:
    江苏南通市科技局基础科学研究计划项目(JC2018107)

Polyvinyl alcohol as reinforcement in damping composites consisting of chlorinated polyethylene and hindered phenol

JIANG Sheng1,2(), JI Limei1,2   

  1. 1. Division of Science and Technology, Jiangsu College of Engineering and Technology, Nantong, Jiangsu 226001, China
    2. Jiangsu Advanced Textile Engineering Technology Center, Nantong, Jiangsu 226001, China
  • Received:2020-08-03 Revised:2021-01-05 Online:2021-04-15 Published:2021-04-20

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摘要：

为拓宽聚乙烯醇(PVA)的应用领域,以聚乙烯醇为增强体,氯化聚乙烯(CPE)和4,4'-甲撑双(2,6-二叔丁基苯酚)(AO 4426)的混合物为基体制备了一系列阻尼复合材料。借助动态热机械分析仪、差示扫描量热仪、傅里叶红外光谱仪、扫描电子显微镜和力学试验机对复合材料的性能和微观形态进行测试与表征。结果表明:添加PVA后复合材料仍保持CPE-AO 4426的双阻尼峰特性,且储能模量和阻尼温域内损耗模量曲线下的面积随PVA质量分数的增大而增大,表明复合材料的阻尼性能获得了较大的改善;PVA的羟基与AO 4426的羟基间形成了氢键,且随着PVA的添加使复合材料的断裂应力和应变均呈先上升后下降趋势。

关键词: 聚乙烯醇, 氯化聚乙烯, 4,4'-甲撑双(2,6-二叔丁基苯酚), 微晶富集, 阻尼性能, 阻尼复合材料

Abstract:

A series of damping composites consisting of polyvinyl alcohol (PVA) acted as reinforcement and the mixture of chlorinated polyethylene (CPE) and 4,4'-methylene-bis-(2,6-dis-tert-butylph-enol) (AO 4426) acting as the matrix were prepared in order to broaden the application field of PVA. The properties and microstructure of the composites were measured and characterized by means of dynamic thermomechanical analyzer, differential thermal analyzer, Fourier infrared spectrometer, scanning electron microscope and mechanical test equipment. The results show that the composites still maintains characteristics of two damping peaks of CPE-AO 4426 composite after adding PVA,and the storage modulus and area under loss modulus curve at the damping temperature range of composites increased with the increase of PVA mass fraction, indicating that the damping performance of composites obtained greater improvement. The hydrogen bonds were formed between hydroxyl group of PVA and hydroxyl group of AO 4426. The fracture stress and the strain of the composite both demonstrate an increase and then a decrease with increase of PVA.

Key words: polyvinyl alcohol, chlorinated polyethylene, 4,4'-methylene-bis-(2,6-di-tert-butylphenol), microcrystalline enrichment, damping property, damping composite

中图分类号: 

  • TQ327.11

图1

调浆装置示意图"

表1

PVA/(CPE-AO 4426)膜的制备配方"

试样编号 PVA质量分数/% CPE-AO 4426质量分数/%
1# 0 100
2# 10 90
3# 20 80
4# 30 70
5# 40 60

图2

PVA质量分数对PVA/(CPE-AO 4426)复合材料储能模量的影响"

图3

PVA质量分数对PVA/(CPE-AO 4426)损耗因子的影响"

图4

不同PVA质量分数PVA/(CPE-AO 4426)复合材料的扫描电镜照片(×3 000)"

图5

PVA质量分数对PVA/(CPE-AO 4426)复合材料LA值的影响"

图6

AO 4426及PVA/(CPE-AO 4426)复合材料的红外光谱图"

图7

AO 4426及PVA/(CPE-AO 4426)复合材料的DSC曲线"

图8

不同PVA质量分数的PVA/(CPE-AO 4426)复合材料的应力-应变曲线"

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