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TPU材料手機殼會發黃嗎

相關標簽:臺灣三晃 TPU、泰科納 TPU、意大利API TPU原料、壓延 TPU、耐水解性 TPU、擠出級 TPU原料

隨著TPU越來越多的被人們了解和接受,現在手機殼和外套大部分都是使用TPU來生產制作的,但是有很多人的手機殼在使用了一段時間短則半年長則2年發現會變黃,而且普通方法洗刷、擦拭都無法去掉,那么是什么導致TPU材質的手機殼變黃的呢?下面小編將跟大家一起分享。
首先TPU變黃是由于PU材質在紫外線的照射下會發生黃變,這種現象是不可逆的所以普通方法根本就不可能讓變黃的手機殼恢復透明。那么這樣才能避免或者延緩TPU手機殼變黃的時間呢?
1.需要在使用手機殼的時候盡量避免手機殼直接暴露在太陽光下,可以使用塑料袋封裝放置陰涼條件下儲存。
2.噴涂耐黃漆,也就是在TPU制品的表面噴上一層耐黃變材質,形成保護層之后能有效降低TPU產品的黃變概率。
3.在TPU材料中增加抗黃變助劑,原理就是能吸收大部分的紫外線,減少TPU制品吸收紫外線的指標。 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/

延伸閱讀—TPU 諾譽化工 58133應用案列
其它 其它 注塑
保護罩和波紋管、汽車零部件、消費品、草坪和園林設備、娛樂運動產品、工業產品
熔融強度高、尺寸穩定、彈性良好、撕裂強度高、結晶度高,循環周期短、產品適合多種吹塑成型方式
參考數據
性能項目 試驗條件[狀態] 測試方法 測試數據
比重 ASTM D-792 1.23
伸長率 ASTM D-412(ASTM D-638) 500 %
彎曲模量 ASTM D-790 25000 Psi
拉伸強度 ASTM D-412(ASTM D-638) 5700 Psi
壓縮調整 ASTM D-395 20 %
肖氏硬度 ASTM D-2240 55D
維卡軟化點 ASTM D-1525 284
Tg -36
Taber ASTM D-3389B 4.0
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