智能運動手環(huán)用聚氨酯熱熔膠脫粘原因分析

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關(guān)鍵詞：智能運動手環(huán)；聚氨酯熱熔膠；脫粘原因中圖分類號： 文獻標(biāo)志碼：A

文章編號：1001-5922（2025）05-0053-03

Abstract：The failed sample is a smart sports bracelet from a manufacturer，andthe screen and shellare bonded together by hotmeltadhesive，and the material is polyurethane.During use，the screen and the shellappear to be disbonded.Inorder to find thereason for the debonding of the screen and the shell，the electronic morphologyand principal component comparison of the scree surface and the shellsurface of the debonded screen and the unused sports bracelet were carried out，and the components were compared by solution extraction.The results showed that thereason for the debonding of the screen and the shell wasthat the hot melt adhesive was attackedby squalene，oleicacidand other substances inartificial sweat，which ledtothedecreaseof theadhesive adhesion of the hot melt adhesiveand causeddebonding.Finally，through verification，it was confirmedthat artificialsweat would indedreduce the adhesion of polyurethane hot melt adhesive，and it is recommended to choose polybutylene adipate glycol polyurethane with high content，which is not easy to be eroded.

Key words：smart sports bracelets； polyurethane hot-melt adhesive ；detachment reason

運動手環(huán)廣泛應(yīng)用于人們?nèi)粘Ｉ畹谋O(jiān)測中，從嬰幼兒游泳、幼兒園運動游戲、小學(xué)生體能發(fā)展到大學(xué)生睡眠質(zhì)量與體質(zhì)監(jiān)測，甚至應(yīng)用到孕婦有氧運動和松弛訓(xùn)練的監(jiān)測以及糖尿病人的血糖監(jiān)測，運動手環(huán)都起到了至關(guān)重要的作用，為人們的健康

保駕護航[1-7]

在使用過程中，運動手環(huán)會出現(xiàn)各種各樣的失效，其中屏幕與殼體脫粘是其中的一種，此次分析的樣品某廠家運動手環(huán)，為了查找屏幕與殼體脫粘的原因，委托方提供未使用的運動手環(huán)進行對比分析，

找到脫粘的原因。（剩余3425字）