The viscosity of PVC decreases and the liquidity increases with the addition of the AC blowing agent increasing. The viscosity will increase when the addition is more than 0.8 phr.
随AC复合发泡剂用量增加，物料粘度下降，流动性提高，用量超过0.8份时，物料的粘度会提高；
The foaming process is controlled easily since the viscosity of composite melts is quite great, without the addition of viscosity-increasing agent.
由于复合材料熔体自身粘度较大，不需要采用任何增粘措施，发泡工艺简单，易于操作。
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