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如何提高雪弗板質量？

文章出處：南京歐格人氣：发布时间：2020/12/16 16:39:58

　　提高PVC發泡板质量是PVC發泡板厂家一直以来的目标，这关系到客户的切身利益，也是与同行竟争取胜关键。下面欧格PVC發泡板厂家根据自己多年的生产经验和实践总结，来跟大家简单谈一下：

PVC發泡板

　　一、PVC發泡板的工艺控制

　　首先是PVC發泡板的工艺控制，因为塑料发泡成型分为一下几个过程：①气泡核的形成②气泡核的膨胀和泡体的固化。对于添加化学发泡剂的PVC发泡片材来说，气泡核的膨胀对发泡片材的质量起决定性影响。PVC属于直链分子，分子链较短，熔体强度低，在气泡核膨胀成气泡过程中，熔体不足以包覆住气泡，气体易溢出合并成大泡，降低发泡片材的产品质量。

　　二、提高PVC的熔體強度

　　提高PVC發泡片材質量的主要因素是提高PVC的熔體強度。從高分子材料加工特性分析，提高PVC熔體強度的方法有多種，但是有效的方式是添加提高熔體強度的助劑和降低加工溫度。

　　PVC屬于非晶材料，隨熔體溫度的提高熔體強度降低，反之隨熔體溫度降低熔體強度提高，但降溫的作用有限僅起到輔助作用。ACR類加工劑都有提高熔體強度的作用，其中發泡調節劑有效果。熔體強度隨發泡調節劑含量增加而提高。一般而言，只要螺杆有足夠的分散混合能力，添加高黏度的發泡調節劑對提高熔體強度效果更明顯。

　　欧格PVC發泡板厂家一直致力于提高其的使用质量，正好符合购买者的有的愿望，花zui少的钱买到货真价实的产品也是消费者希望的，如果只看外表，价格，不考其产品的质量，使用效果和使用寿命会大打折扣。虽然上在我们说了那么多，但这些因素不是购买者用肉眼看到的东西，大家还不知道什么样的产品才是质量好的，下面这篇文章我们教你怎么选择质量好的产品。

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