2,6-单取代芳香酚醛树脂及其复合膜的可逆热敏变色性能  

Reversible Thermochromic Properties of 2,6-Monosubstituted Aromatic Phenolic Resin and Its Composite Film

作　　者：王晓辉[1,2] 董黎明 冯玉[1] 魏瑞 么冰 陈艳 李靖[1] WANG Xiao-hui;DONG Li-ming;FENG Yu;WEI Rui;YAO Bing;CHEN Yan;LI Jing(School of Materials and Chemical Engineering,Xuzhou University of Technology,Xuzhou 221111,China;Jiangsu Luyuan Rubber Resource Recycling Innovation Center,Pizhou 221300,China)

机构地区：[1]徐州工程学院材料与化学工程学院,江苏徐州221111 [2]江苏绿源橡胶资源循环利用创新中心,江苏邳州221300

出　　处：《塑料科技》2023年第11期10-15,共6页Plastics Science and Technology

基　　金：国家自然科学基金项目(51873232)。

摘　　要：文章采用双酚A(BPA)、对苯二甲醛(TPD)、间苯二甲醛(IPD)为共缩聚单体,基于开放体系和溶液缩聚方法,微波辅助制备了2,6-单取代芳香酚醛树脂(IPD-BPA-TPD),以树脂为显色剂制备可逆热敏变色镍系顺丁橡胶膜。采用凝胶渗透色谱仪、核磁共振氢谱仪、核磁共振碳谱仪、热重分析仪、热分析仪等测试树脂,采用热重分析仪、热分析仪、分光色差仪、偏光显微镜测试复合膜,研究膜的热敏变色性质、热稳定性、热循环稳定性和微观形貌等。结果表明:IPD-BPA-TPD的M_(n)为1.133×10^(3)g/mol,PDI为1.005。复合膜在恒速降温相变的低温段(12~38℃)的总色差(ΔE)达到90左右,吸收/散射色深差Δ(K/S)在480~600 nm、600~660 nm可见光区达到15和40左右,且具有良好的热稳定性和热循环稳定性。2,6-monosubstituted aromatic phenolic resin(IPD-BPA-TPD) was prepared by microwave-assisted method using bisphenol A(BPA),terephthalaldehyde(TPD) and isophthalaldehyde(IPD) as co-condensation monomers based on an open system and solution polycondensation method.A reversible thermochromic nickel-based butadiene rubber film was prepared using resin as a chromogenic agent.The resin was tested by a gel permeation chromatograph,a nuclear magnetic resonance hydrogen spectrometer,a nuclear magnetic resonance carbon spectrometer,a thermogravimetric analyzer and a thermal analyzer.The composite film was tested by a thermogravimetric analyzer,a thermal analyzer,a spectrophotometer and a polarizing microscope.The thermochromic properties,thermal stability,thermal cycle stability and microstructure of the film were studied.The results show that the M_(n) of IPD-BPA-TPD is 1.133×10^(3) g/mol,the PDI is 1.005.The total color difference ΔE of the composite film reaches about 90 in the low temperature section(12~38 ℃) of the constant-rate cooling phase transition,and the absorption/scattering color depth difference Δ(K/S) reach about 15 and 40 in the visible regions of 480~600 nm and 600~660 nm,and film has good thermal stability and thermal cycle stability.

关 键 词：2 6-单取代芳香酚醛树脂 可逆热敏变色 热稳定性 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业] TB34[一般工业技术—材料科学与工程]