改性聚l -丙交酯的热性能和加工性:苯乙酸酰肼衍生物的作用

IF 1.1 4区工程技术 Q4 POLYMER SCIENCE

Polimery Pub Date : 2022-09-20 DOI:10.14314/polimery.2022.9.3

Hao Huang, Yanhua Cai, Lisha Zhao

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引用次数: 0

摘要

研究了苯乙酸酰肼（NAPAH）衍生物含量、熔体温度（170−200°C）和冷却速度（1−20°C/min）对聚L-丙交酯（PLLA）成核的影响。增加NAPAH的含量（0.5−3.0 wt.%）对PLLA结晶有积极影响，而增加冷却速率和加热温度则有消极影响。在长时间（180分钟）等温结晶的情况下，熔融过程仅取决于结晶温度。NAPAH还影响了冷结晶温度，降低了热稳定性并提高了PLLA的可加工性（MFR）。

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Thermal properties and processability of modified poly(L-lactide): the role of phenylacetic acid hydrazide derivative

The influence of phenylacetic acid hydrazide (NAPAH) derivative content, melt temperature (170−200°C) and cooling rate (1−20°C/min) on poly (L-lactide) (PLLA) nucleation were investigated. Increasing the content of NAPAH (0.5−3.0 wt.%) had a positive effect on PLLA crystallization, while an increase in the cooling rate and heating temperature had a negative effect. In the case of isothermal crystallization carried out for a long time (180 min), the melting process depended only on the crystallization temperature. NAPAH also influenced the cold crystallization temperature, reduced thermal stability and improved PLLA processability (MFR).

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来源期刊

Polimery Materials Science-Polymers and Plastics

CiteScore

2.90

自引率

6.20%

发文量

审稿时长

1 months

期刊介绍： The "Polimery" journal, of international circulation, is publishing peerreviewed scientific and technical research papers covering polymer science and technology in the field of polymers, rubbers, chemical fibres and paints. The range of topics covered are raw materials, polymer synthesis, processing and applications of polymers. Apart from scientific and technical research papers the monthly includes technical and commercial information such as reports from fairs and exhibitions as well as home, world and technical news. “Polimery "- an international journal covering the following topics: polymers, rubber, chemical fibres and paints. The Journal is addressed to scientists, managers and engineering staff of universities, Polish Academy of Sciences, R&D institutions, industry, specializing in polymer chemistry, physical chemistry, technology and processing. “Polimery” publishes original, reviewed research, scientific and technology papers in the field of polymer synthesis, analysis, technology and modification, processing, properties, applications and recycling.