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案例詳情
/ Case details
TPU附著力處理劑應用實例之TPU材質藍牙耳機噴橡膠漆
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2022/05/11
文章出處:

  TPU材質因具有外觀色彩調整廣、耐磨及耐油、耐寒等特點被廣泛應用于3C電子數碼產品的零部件中,為了進一步達到外觀及使用體驗等功能其表面處理通常會噴涂橡膠漆。但是橡膠漆噴漆除了百格測試之外,手摳及拉伸測試不爆漆是基本要求。下面我們就分享TPU噴橡膠漆掉漆問題的解決方法中,TPU附著力處理劑的應用實例。

  案例工藝:

  TPU材質藍牙耳機噴橡膠漆

  問題現象:

  TPU底材表面噴涂橡膠漆后進行指摳測試,合模線位置橡膠漆起粉起皮脫落

  解決方案:

  TPU材質屬于熱屬性彈性體,具有很好的回彈性及伸縮性,因此在出現掉漆問題時,一般會說油漆的硬度高了可以調整油漆的硬度。但是其主要的原因在于橡膠漆涂層無法與TPU基材之間形成分子間滲透結合,因此出現油漆脫落的現象較為常見。TPU附著力處理劑則通過打底使用方法,在TPU基材與橡膠漆之間搭建分子間滲透結合通道,承上啟下之外,還能夠形成化學鍵合作用,使得橡膠漆漆膜更加牢固的附著于TPU底材上,在進行拉伸及手摳等測試時,不出現起粉及漆膜脫落等問題。

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  原創內容作者:炅盛處理劑,原創內容鏈接:http://www.cjieyu.cn/5207.html,發布時間:16:18:32,轉載請注明出處。

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