Study of different process additives applied to polypropylene
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Characterization of Minerals, Metals, and Materials. TMS
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There are several additives aimed on improving the processing characteristics as well as mechanical properties of the plastic materials. Being polypropylene is one of the main polymers used in the plastic processing industry due to its easy processability and application versatility, was chosen as the base resin for this study. Additives can aid the processing of polypropylene, either by promoting a better slip between the chains (lubricants), or by contributing to nucleation and crystallinity (nucleating). In this study, the raw materials copolymer polypropylene, lubricant (internal and external action), organic nucleating agent (metallic salt) and inorganic nucleating agent (metallic oxide) were considered. Mechanical tensile tests, Charpy impact and spiral flow to verify melt index were performed to characterize the samples with additives and standard (copolymer polypropylene). The interference of these additives with polymeric matrix was observed.
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POVEDA, PATRICIA N.S.; MOLARI, JULIANA A.; BRUNELLI, DEBORAH D.; SILVA, LEONARDO G.A. e. Study of different process additives applied to polypropylene. In: LI, BOWEN (ed.); LI, JIAN (ed.); IKHMAYIES, SHADIA (ed.); ZHANG, MINGMING (ed.); KALAY, YUNUS E. (ed.); CARPENTER, JOHN S. (ed.); HWANG, JIANN-YANG (ed.); MONTEIRO, SERGIO N. (ed.); FIRRAO, DONATO (ed.); BROWN, ANDREW (ed.); BAI, CHENGUANG (ed.); PENG, ZHIWEI (ed.); ESCOBEDO-DIAZ, JUAN P. (ed.); GOSWAMI, RAMASIS (ed.); KIM, JEONGGUK (ed.). Characterization of Minerals, Metals, and Materials. TMS. Cham, CZ, Switzerland: Springer International Publishing AG, 2018. p. 661-667. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-319-72484-3_70. Disponível em: http://repositorio.ipen.br/handle/123456789/28876. Acesso em: 30 Dec 2025.
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