塑料科技2024，Vol.52Issue(9)：32-37,6.DOI:10.15925/j.cnki.issn1005-3360.2024.09.006
大分子受阻酚功能化碳纳米管改性聚氨酯网状泡沫塑料的制备及性能研究
Preparation and Property study of Polyurethane Reticulated Foam Modified by Macromolecular Hindered Phenol Functionalized Carbon Nanotubes
王瑞欣 1杨瑞宁 1尚磊 2张博1
作者信息
- 1. 中国航空制造技术研究院,北京 100024
- 2. 沈阳飞机设计研究所,辽宁沈阳 110035
- 折叠
摘要
Abstract
Poly(2-hydroxyethyl methacrylate)(PHEMA)was grafted onto γ-aminopropyl trimethoxysilane(APTMS)functionalized carbon nanotubes(CNTs)by surface-initiated oxidation-reduction polymerization.Then 3,5-di-tert-butyl-4-hydroxybenzoic acid(CNTs-PHEMA-g-AO-e)was grafted by esterification.The effects of CNTs-PHEMA-g-AO-e on the apparent density,mechanical properties,antistatic and aging resistance of polyurethane(PU)reticulated foam were studied in detail.The results showed that functionalized CNTs with grafting rate of AO-e of 8%were successfully prepared by surface-initiated oxidation-reduction polymerization and esterification.With the increase of CNTs-PHEMA-g-AO-e content,the apparent density was gradually increased before and after netting,the density difference was decreased first and then increased,the tensile strength and compressive strength was first increased and then decreased,the compression set was first decreased and then increased,and the elongation at break decreased obviously.When the content of CNTs-PHEMA-g-AO-e was 4%,the tensile strength of PU reticulated foam was 262.6 kPa,the elongation at break was 122.7%,the compressive strength at 65%set deformation was 8.6 kPa and the compression set was 15.6%.Compared with PU network foam directly added with AO-e,the antistatic property was improved,the volume resistivity was decreased by 10 orders of magnitude,and the aging resistance was significantly enhanced in the presence of CNTs-PHEMA-g-AO-e.关键词
碳纳米管/聚氨酯网状泡沫/大分子抗氧剂/抗静电性能/耐老化性能Key words
Carbon nanotube/Polyurethane reticulated foam/Macromolecular antioxidant/Antistatic performance/Aging resistance分类
化学化工引用本文复制引用
王瑞欣,杨瑞宁,尚磊,张博..大分子受阻酚功能化碳纳米管改性聚氨酯网状泡沫塑料的制备及性能研究[J].塑料科技,2024,52(9):32-37,6.
