The influence of blowing agent addition, talc filler content, and injection velocity on selected properties, surface state, and structure of polypropylene injection molded parts

IF 1.3 4区医学 Q4 MATERIALS SCIENCE, BIOMATERIALS

Cellular Polymers Pub Date : 2020-01-01 DOI:10.1177/0262489319873642

Paweł Palutkiewicz, M. Trzaskalska, E. Bociąga

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引用次数: 12

Abstract

The effects of blowing agent, talc, and injection velocity on properties of polypropylene molded parts were presented. Blowing agent was dosed to plastic in amounts 1–2% and talc 10–20%. The results of selected properties, such as weight, thickness, hardness, impact strength, tensile strength, and gloss, were presented. The article also presents microscopic investigations. The blowing agent and talc content have a large impact on mechanical properties and gloss of parts than addition of blowing agent. The use of the blowing agent in an amount of 2 wt% will allow the reduce injection cycle time by reducing the hold pressure and hold time. Addition of blowing agents lowers of tensile strength, hardness, impact strength, and significantly affected the gloss. Talc filler contributes to a significant increase in the weight of parts, a decrease in hardness, impact strength, and tensile strength. The injection velocity has no significant effect on parts properties.

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研究了发泡剂添加量、滑石填料含量和注射速度对聚丙烯注塑件的性能、表面状态和结构的影响

研究了发泡剂、滑石粉和注射速度对聚丙烯模塑件性能的影响。发泡剂用量为塑料的1-2%，滑石粉用量为10-20%。给出了所选性能的结果，如重量、厚度、硬度、冲击强度、拉伸强度和光泽度。文章还介绍了微观研究。发泡剂和滑石含量对零件的机械性能和光泽度的影响比发泡剂的添加量大。发泡剂的用量为2wt %，可以通过降低保持压力和保持时间来减少注射周期时间。发泡剂的加入降低了拉伸强度、硬度、冲击强度，并显著影响了光泽度。滑石填料有助于显著增加零件的重量，降低硬度，冲击强度和抗拉强度。注射速度对零件性能无显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cellular Polymers 工程技术-材料科学：生物材料

CiteScore

3.10

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Cellular Polymers is concerned primarily with the science of foamed materials, the technology and state of the art for processing and fabricating, the engineering techniques and principles of the machines used to produce them economically, and their applications in varied and wide ranging uses where they are making an increasingly valuable contribution. Potential problems for the industry are also covered, including fire performance of materials, CFC-replacement technology, recycling and environmental legislation. Reviews of technical and commercial advances in the manufacturing and application technologies are also included. Cellular Polymers covers these and other related topics and also pays particular attention to the ways in which the science and technology of cellular polymers is being developed throughout the world.