2. The preparation technology and its effect factors for polyvinyl formal foam plastic by way of mechanical
foaming method were studied.
本文论述了用机械发泡法制备聚乙烯醇缩甲醛泡沫塑料的工艺及其影响因素。
3. This paper introduces the structure of polymer molecule and the
foaming plastics and analyzes the influence of molecule structure and dynamic forming factors on the
foaming process.
介绍了高聚物的分子结构和塑料的发泡成型,从微观的角度分析了高聚物的分子结构及动态加工因素对发泡成型的影响。