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涂層附著力案程供應商 免費提供附著力不良方案
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2016/05/20

  涂層附著不良,涂層附著力案程供應商免費提供附著力促進劑方案,良率可達到80%。


塑料件噴涂后,可獲得如下效果:

1.可遮蓋成型后制件的表面缺陷;

2.因塑料件本身著色比較困難,可利用噴涂獲得多種色

3.使塑料件的靜電性能得到改善,減少灰塵吸附;

4.增強了塑料件的硬度和耐擦傷性;

5.提高了塑料件的耐候性;

6.使塑件件表面的光澤任意調整;

7.砂紋漆、絨毛漆等一些特殊漆,可獲得較好的外觀及手感。


  另外,塑料成型后表面狀態對外觀質量有很大的影響。要求成型后的表面平整光滑,均勻一致,不應有劃傷、飛邊、毛刺、凹坑、斑點、氣泡和明顯的熔接線。但是有些素材表面極性差,吸附力度弱導致油漆從表面脫落,附著不好。


  涂層固化過程中由于體積收縮而形成內應力,在反復的冷熱,干濕循環,由于涂層和基體脹縮不一致,也會產生破壞性應力,如果內應力大于附著力涂層便脫開,如果小于附著力而大于內聚力,涂層會開裂,片狀或纖維顏料,填料可以降低涂層的內應力。


  附著力不良可使用附著力促進劑在素材表面先打一層底,然后在噴油漆。

附著力促進劑廣泛應用于各種化纖、木材、塑膠、金屬、陶瓷、玻璃、ABS、PVC等基材,以大幅度提高膜層與底材的附著力。


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