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納米纏繞膜不合格会造成哪些危害

作者：兴亚缠绕膜閱讀量：发布日期：2022/9/13 15:07:54

信息摘要：

納米纏繞膜的生产颗粒是生产缠绕膜的必需品，但是有时候购买的颗粒形状大小不合格，如果使用会对其产生哪些危害呢？有什么解决措施呢？

一、顆粒不整齊

PE顆粒外形應巨細基本持平，因爲造粒機部分模孔産生阻塞,使PE樹脂不能均勻擠出，切成的顆粒呈巨細不均現象,構成模孔阻塞有模板溫度、體系平穩與純淨、顆粒冷卻水溫度及供應時刻和操作質量等多方面原因。

二、絮狀物和塑化片與拉絲産生的首要原因

为切刀模板之间距离大(大于0.2 mm)、不平行及切刀与模板自身缺陷和操作控制不当。尽管絮状物、塑化片和拉丝均不会进人产品中,但损害很大,若处理措施不恰当，易构成频繁停车.严重影响納米纏繞膜出产并产生较多的残次产品。

三、顆粒全體過大和部分過大

納米纏繞膜出産操作中切粒機轉速過低構成的PE顆粒就長,在升高轉速後仍有部分大顆粒存在,說明有斷刀現象。隨斷刀數量添加,大顆粒長度、數量相應添加,高熔體流動速率和混煉過度的樹脂因流動性好尤爲顯著，嚴重時可能構成管線阻塞。

以上就是納米纏繞膜不合格会造成的一些危害，所以我们在选购缠绕膜时要仔细考察，擦亮眼睛，选到高质量的产品。

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