Comparison of mechanical properties and interfacial interactions of polypropylene composites filled with talc， calcium carbonate， and barium sulfate

doi:10.19491/j.issn.1001-9278.2022.08.006

Abstract

Abstract:

Polypropylene （PP）?matrix composites were prepared through melt blending with three types of white mineral powders including granular calcium carbonate （CaCO₃） and barium sulfate （BaSO₄） and lamellar talc as fillers. The effects of three types of mineral powders on the mechanical properties， flow properties and fracture morphology of the resultant composites were investigated. In addition， Turcasanyi formula was used to calculate the interface interaction between the PP matrix and mineral fillers. The results indicated that the composites showed a decrease in tensile strength with the addition of mineral powders. The tensile strength of the PP/talc composite was significantly higher than those of the PP/CaCO₃and PP/BaSO₄ composites. The addition of talc significantly enhanced the tensile and bending moduli of PP and also increased its bending strength. However， the addition of CaCO₃ and BaSO₄ reduced the bending strength of PP. CaCO₃ exhibited the most obvious effect to improve the elongation at break of PP and the notch impact strength of cantilever beam. The addition of talc improved the fluidity of the composites， whereas the addition of granular CaCO₃ and BaSO₄ showed few effects on the process ability. CaCO₃ and BaSO₄ were agglomerated in PP due their poor compati?bility with PP and obvious interface defects. The interface between talc and PP was vague， and there was a strong bon?ding effect between talc and PP.

Key words: polypropylene, white mineral filler, composite, mechanical property, flow property

CLC Number:

TQ325.1⁺4

ZHANG Taozhong, CHEN Xiaolong, HAO Xiaoyu, YU Fujia. Comparison of mechanical properties and interfacial interactions of polypropylene composites filled with talc， calcium carbonate， and barium sulfate[J]. China Plastics, 2022, 36(8): 36-41.

Figures/Tables 10

PP 含量	矿物粉体含量	PE蜡含量	芥酸酰胺含量	抗氧剂1010 含量	抗氧剂168 含量
90	10	0.5	0.2	0.01	0.02
80	20	0.5	0.2	0.01	0.02
70	30	0.5	0.2	0.01	0.02
60	40	0.5	0.2	0.01	0.02

Tab.1. Formula of the composite materials

Fig.1. Effect of mineral filler content on tensile strength of the composites

Fig.2. Effect of mineral filler content on elongation at break of the composites

Fig.3. Effect of mineral filler content on tensile modulus of the composites

Fig.4. Effect of mineral filler content on flexural strength of the composites

Fig.5. Effect of mineral filler content on flexural modulus of the composites

Fig.6. Effect of mineral filler content on notched impact strength of the composites

Fig.7. Effect of mineral filler content on MFR of the composites

Fig.8. SEM images of PP composites filled with mineral fillers of different shapes

Fig.9. Linear fitting curves of Turcsányi equations for PP composites filled with mineral fillers

References 13

1	洪定一. 聚丙烯——原理、工艺与技术［M］. 北京：中国石化出版社， 2011：1⁃3.
2	Ana M. Díez⁃Pascual， Mohammed Naffakh， Carlos Marco，et al. Multiscale fiber⁃reinforced thermoplastic composi⁃tes incorporating carbon nanotubes： a review［J］. Current Opinion in Solid State & Materials Science，2014，18（2）： 62⁃80.
3	吴磊，何雪莲，刘柏平. 纳米CaCO₃增强增韧PP/弹性体复合材料的研究［J］. 工程塑料应用， 2016， 44（4）：6.
	WU L， HE X l， LIU B P. Investigations on nano⁃CaCO₃ reinforced and toughening polypropylene/elastomer composites［J］. Engineering Plastics Application，2016， 44（4）：6.
4	YaoZ.T.， ChenT.， LiH.Y.， et al. Zheng. Mechanical and thermal properties of polypropylene （PP） composites filled with modified shell waste［J］. Journal of Hazardous Materials，2013，262： 212⁃217.
5	李洋，韩常玉，于彦存，等.聚丙烯与丙烯⁃乙烯共聚物的共混改性研究［J］.塑料科技，2018，46（07）：46⁃50.
	LI Y， HAN C Y， YU Y C， et al.Study on blending modification of polypropylene and propylene ethylene copolymer［J］. Plastics Science and Technology，2018，46（7）：46⁃50.
6	Dasari A.， Misra R.D.K.. The role of micrometric wollastonite particles on stress whitening behavior of polypropylene composites［J］. Acta Materialia，2003，52（6）： 1 683⁃1 697.
7	Yang K， Yang Q， Li G， et al. Mechanical properties and morphologies of polypropylene with different sizes of calcium carbonate particles［J］. Polymer Composites， 2010， 27（4）：443⁃450.
8	Li Dang， NaiXueying， Xin Liu， et al. Effect of magnesium oxysulfate （MOS） morphology on the crystallization， mechanical， and rheological properties of polypropylene/MOS composites［J］. Journal of Thermoplastic Composite Materials，2019，32（5）： 710⁃726.
9	巫少龙，魏小华，徐建亮.纳米云母改性聚丙烯复合材料的制备及性能研究［J］.塑料工业，2020，48（6）：61⁃67，134.
	WU S L， WEI X H， XU J L. Study on the preparation and properties of polypropylene⁃modified nano⁃mica composites［J］. China Plastics Industry. 2020，48（6）：61⁃67，134.
10	党力，乃学瑛，朱东海，等.碱式硫酸镁形貌对碱式硫酸镁/聚丙烯复合材料力学性能的影响［J］.复合材料学报，2017，34（7）：1 517⁃1 525.
	DANG L， NAI X Y， ZHU D H，et al.Effect of magnesium oxysulfate morphology on the mechanical properties of magnesium oxysulfate/polypropylene composites［J］. Acta Materiae Compositae Sinica，2017，34（7）：1 517⁃1 525.
11	潘巍. 滑石粉、硅藻土改性PP复合材料的性能研究［D］.北京：北京化工大学，2016.
12	Li Dang， Nai Xue⁃ying， Xin Liu，et al.Effects of different compatibilizing agents on the interfacial adhesion properties of polypropylene/magnesium oxysulfate whisker composites［J］.Chinese Journal of Polymer Science，2017，35（9）：1 143⁃1 155.
13	LiangJ. Z.， WuC. B.. Effects of the glass bead content and the surface treatment on the mechanical properties of polypropylene composites［J］. Journal of Applied Polymer Science， 2012，123（5）： 3 054⁃3 063.

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