问题
问答题 简答题
为什么要测定PVC树脂的挥发分？
答案
参考答案：
因为树脂中挥发分大小，直接影响成型加工工序的效率和塑料制品质量，如水分超过0.3%则难于过筛，而且在成型加工中易于产生气泡。所以成品树脂挥发分要控制在一定范围之内。
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为什么要测定PVC树脂的挥发分？
参考答案：
因为树脂中挥发分大小，直接影响成型加工工序的效率和塑料制品质量，如水分超过0.3%则难于过筛，而且在成型加工中易于产生气泡。所以成品树脂挥发分要控制在一定范围之内。
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