TMC-300对PLLA/PPC合金性能的影响

doi:10.11896/j.issn.1005-023X.2018.10.020

《材料导报》期刊社

2018, Vol. 32

Issue (10): 1672-1677 https://doi.org/10.11896/j.issn.1005-023X.2018.10.020

材料研究

TMC-300对PLLA/PPC合金性能的影响

齐亚平¹,罗发亮¹,王克智²,沈志远¹,武学坚¹,王迪然¹

1 宁夏大学省部共建煤炭高效利用与绿色化工国家重点实验室,银川 750021;
2 山西化工研究所,太原 030021

Effect of TMC-300 on the Performance of PLLA/PPC Alloy

QI Yaping¹, LUO Faliang¹, WANG Kezhi², SHEN Zhiyuan¹, WU Xuejian¹, WANG Diran¹

1 State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021;
2 Shanxi Provincial Institute of Chemical Industry, Taiyuan 030021

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摘要为了改善聚L-乳酸(PLLA)/聚碳酸亚丙酯(PPC)合金的结晶等性能,利用熔融共混法在合金中添加PLLA专用酰肼类成核剂TMC-300。采用差示扫描量热仪(DSC)、广角X射线衍射仪(WAXD)、小角X射线散射仪(SAXS)、偏光显微镜(POM)、扫描电子显微镜(SEM)及力学分析方法考察了PLLA专用酰肼类成核剂TMC-300对PLLA/PPC合金的结晶及力学性能的影响。结果显示,添加质量分数为0.5%的TMC-300对PLLA/PPC合金之间的相容性影响甚微,但可提高PLLA/PPC合金的结晶度,使合金中PLLA的长周期减小,且添加TMC-300的合金中PLLA晶核数目增多,球晶尺寸减小。此外,添加0.5%的TMC-300可提高PLLA/PPC合金整体的断裂伸长率。在质量比为80/20的PLLA/PPC合金中加入0.5%的TMC-300后,该三元共混材料的冲击韧性达到最佳。

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	齐亚平
	罗发亮
	王克智
	沈志远
	武学坚
	王迪然

关键词: 聚L-乳酸聚碳酸亚丙酯 TMC-300 结晶性能力学性能

Abstract: In order to improve the crystallization properties of poly (L-lactic acid) (PLLA)/poly (propylene carbonate) (PPC) alloy, a PLLA-specific hydrazide nucleating agent TMC-300 was added into the alloy by melt blending. Differential scanning calori-meter (DSC), wide angle X-ray diffraction (WAXD), small angle X-ray scattering (SAXS), polarized optical microscopy (POM), scanning electron microscopy (SEM) and mechanical analysis were utilized to investigate the effects of TMC-300 on the properties of PLLA/PPC alloy. The results manifested that the addition of 0.5% TMC-300 had little effect on the compatibility between PLLA/PPC alloys, but the crystallinity of PLLA/PPC alloy increased, and the long period of PLLA in the alloy decreased. The number of PLLA nuclei in the alloy increased after adding in TMC-300, which the size of the spherulite decreased. In addition, the elongation at break of the PLLA/PPC alloy was increased with added 0.5% of TMC-300. The impact toughness of the alloy improved and its ma-ximal value corresponded to PLLA/PPC alloy of 80/20 mass ratio with addition of 0.5% TMC-300.

Key words: poly(L-lactic acid) poly(propylene carbonate) TMC-300 crystallization properties mechanical properties

出版日期: 2018-05-25 发布日期: 2018-07-06

ZTFLH:

O631

基金资助: 国家自然科学基金(51063004);宁夏回族自治区化学工程与技术国内一流学科资助(NXYLXK2017A04)

通讯作者: 罗发亮:通信作者,男,1976年生,博士,教授,硕士研究生导师,主要从事高分子材料结构、性能及改性研究 E-mail:flluo@iccas.ac.cn

作者简介: 齐亚平:女,1992年生,硕士研究生,主要研究方向为高分子材料改性 E-mail:820966382@qq.com

引用本文:

齐亚平,罗发亮,王克智,沈志远,武学坚,王迪然. TMC-300对PLLA/PPC合金性能的影响[J]. 《材料导报》期刊社, 2018, 32(10): 1672-1677.
QI Yaping, LUO Faliang, WANG Kezhi, SHEN Zhiyuan, WU Xuejian, WANG Diran. Effect of TMC-300 on the Performance of PLLA/PPC Alloy. Materials Reports, 2018, 32(10): 1672-1677.

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https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.10.020 或 https://www.mater-rep.com/CN/Y2018/V32/I10/1672

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