UV固化扬声器中心胶的制备及性能研究  

Preparation and performance study of UV curing speaker center adhesive

作　　者：曾柳惠 汪尧双 陆信航 王世伟 谢守华 Zeng Liuhui;Wang Yaoshuang;Lu Xinhang;Wang Shiwei;Xie Shouhua(GuoGuang Electric Company Limited,Guangdong Provincial Key Laboratory of Electroacoustic Electronic Technology R&D and Application,Guangzhou 510800,Guangdong,China)

机构地区：[1]国光电器股份有限公司,广东省电声电子技术研发与应用企业重点实验室,广东广州510800

出　　处：《中国胶粘剂》2025年第2期43-47,63,共6页China Adhesives

摘　　要：采用液化改性4,4'-二苯基甲烷二异氰酸酯(MDI)、聚丙二醇(PPG-2000)和丙烯酸羟乙酯(HEA)等原料制备聚氨酯丙烯酸酯预聚体(P)。再以4-丙烯酰吗啉(ACMO)和三甲基环己基丙烯酸酯(TMCHA)为主要稀释剂单体,搭配光引发剂和助剂,得到UV固化胶粘剂。分别对ACMO和TMCHA的添加量和复配比例进行探讨,使复配所得的单体不但能够增加胶粘剂的硬度,也能使胶粘剂具备较好的粘接力。研究结果表明:(1)红外光谱表明,已经成功制备了预期产物聚氨酯丙烯酸酯。(2)通过研究单体的添加量及复配比例对胶粘剂的硬度和各种基材粘接性能的影响,得出ACMO添加量为15%,TMCHA添加量为30%时为最优配方(UV5)。此时PI/PC的剥离强度为1.95 N/mm,硬度为40D。(3)将最优配方UV5与市售AB胶(5705GB)进行基础粘接性能以及各种音膜材料粘接性能的对比,得出在PC/PET、PC/特多龙、玻片/特多龙的粘接上,UV5更为优异。而且在基础粘接性能的对比上,UV5的PC/PC、PC/Zn以及PC/Al的剪切强度要比市售AB胶(5705GB)的好。(4)通过承重胶水耐温试验的分析,在80~130℃的范围下进行粘接样条的挂重,发现UV5和市售5705GB耐温性均比较好,耐温均能够达到130℃。(5)根据声学性能曲线,发现配方UV5粘接的喇叭样品符合各项声学性能要求,且比市售5705GB产品性能更好。Polyurethane acrylate prepolymer(P)was prepared by using liquefied modified 4,4'-diphenylmethane diisocyanate(MDI),polypropylene glycol(PPG-2000),and hydroxyethyl acrylate(HEA)as raw materials.UV curing adhesive was then obtained by using 4-acryloylmethiolane(ACMO)and trimethylcyclohexyl acrylate(TMCHA)as the main diluent monomers,combined with photoinitiators and additives.The addition amount and compounding ratio of ACMO and TMCHA were explored respectively,so that the monomers obtained from compounding could not only increase the hardness of adhesive,but also made the adhesive have good adhesion.The research results showed that,(1)The infrared spectrum indicated that the expected product polyurethane acrylate was successfully prepared.(2)By studying the effects of monomer addition amount and compounding ratio on the hardness of adhesive and the bonding performance of various substrates,it was found that the optimal formula(UV5)was obtained when the ACMO addition amount was 15%and the TMCHA addition amount was 30%.At this time,the peel strength of PI/PC was 1.95 N/mm and the hardness was 40D.(3)Comparing the basic bonding performance of the optimal formula UV5 with commercially available AB adhesive(5705GB)and the bonding performance of various acoustic membrane materials,it was found that UV5 was superior in the bonding of PC/PET,PC/Tedroson,and glass slide/Tedroson.Moreover,in terms of basic adhesive performance comparison,the shear strength of UV5 on PC/PC,PC/Zn,and PC/Al was better than that of commercially available AB adhesive(5705GB).(4)Through the analysis of the temperature resistance test of the load-bearing adhesive,the hanging weight of the adhesive strip was carried out in the range of 80-130℃.It was found that UV5 and the commercially available 5705GB had good temperature resistance,both of which could reach 130℃.(5)According to the acoustic performance curve,it was found that the speaker sample bonded with formula UV5 met various acoustic performance requirements and performed better than the

关 键 词：UV胶粘剂 稀释剂单体 中心胶 音膜 

分 类 号：TQ433.43[化学工程]