氟化甲基丙烯酸酯改性压力敏感材料的制备及性能研究  

Fabrication and properties of fluorinated methacrylate-modified pressure-sensitive materials

作　　者：刘家楹 魏春华 杨瑜珂 蒋海林 杨军校 梁磊[2] Liu Jiaying;Wei Chunhua;Yang Yuke;Jiang Hailin;Yang Junxiao;Liang Lei(State Key Laboratory of Environment-friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010;China Aerodynamics Research and Development Center,Mianyang 621000)

机构地区：[1]西南科技大学环境友好能源材料国家重点实验室,绵阳621010 [2]中国空气动力研究与发展中心,绵阳621000

出　　处：《化工新型材料》2025年第3期101-106,共6页New Chemical Materials

基　　金：国家重点研发计划项目(2020YFA0405700);国家自然科学基金(12202476);四川省自然科学基金项目(2022NSFSC0032);西南科技大学环境友好能源材料国家重点实验室基金项目(21fksy03和20fksy03)。

摘　　要：氟化丙烯酸酯聚合物因其对氧气的敏感性高,光降解率低及温度敏感性低等优点在压力敏感涂料(PSP)中的应用越来越广。为了改善聚对叔丁基苯乙烯用作PSP基体聚合物的性能,采用自由基聚合法制备了氟化甲基丙烯酸酯单体与对叔丁基苯乙烯共聚物,通过核磁氢谱(^(1)H-NMR)、凝胶渗透色谱(GPC)等测试手段对聚合物的结构和性能进行了表征。将共聚物与氧探针混合并喷涂制备了压力敏感涂层,对其氧传感性、压力敏感性、温度敏感性以及光降解性能进行了研究,筛选出最适合用作PSP基体聚合物衬底。结果表明:甲基丙烯酸六氟异丙酯与对叔丁基苯乙烯的共聚物综合性能最为优异,压力敏感性高(S_(p)=0.7154%/kPa),温敏感性低(S_(T)=-0.4978%/℃),光降解性较低(I_(d)=9.92%/h)。Fluorinated acrylate polymers are widely used in pressure-sensitive coatings(PSP),attributing to their high sensitivity for oxygen,low photodegradation rate and low temperature sensitivity.Target to improve the performance of poly(p-tert-butylstyrene) as PSP matrix polymer,the copolymers deriving from fluorinated methacrylate monomers and p-tert-butylstyrene monomers were synthesized by free radical polymerization.^(1)H-NMR and GPC were employed to characterize the structures and properties of the copolymers.The pressure-sensitive coatings were prepared by blending the copolymer with an oxygen probe and spraying.Their oxygen sensing,pressure sensitivity,temperature sensitivity and photodegradation properties were investigated,and the optimum substrate for PSP was screened out.The results indicated that the copolymer deriving from hexafluoroisopropyl methacrylate and p-tert-butylstyrene exhibited the optimal comprehensive properties,with high pressure sensitivity(S_(p)=0.7154%/kPa),low temperature sensitivity(S_(T)=-0.4978%/℃) and low photodegradation(I_(d)=9.92%/h).

关 键 词：压力敏感材料 氟化聚合物 铂卟啉 喷涂薄膜 

分 类 号：TQ638[化学工程—精细化工]