前国内外文献报道的微发泡聚合物材料加工主要采用物理发泡的技术路线，而化学微发塑工艺的研究报道很少。
Microcellular polymer material processing technology at home and abroad literatures mainly uses the physical foaming, and micro chemical research reports rarely plastic process.
介绍了原料、配方、工艺、设备等因素对采用化学发泡剂进行PVC 发泡挤出成型的影响，对实际生产有一定的指导意义。
The influence of the materials, recipe, technology and equipments on extrusion of PVC foam by using chemical foamer are introduced. And it is significant for practical production.
本课题主要研究了用一步法化学交联挤出发泡工艺成型PP发泡材料的原理、配方、工艺条件及其成型装置的组合与优化。
In the study, the theory, formula, technology and combination and optimization of apparatus for the crosslinked pp extruding foam in one-step were discussed.
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