Preparation of Nanometer Calcium Carbonate Masterbatch with Different Processing Methods and Its Effect on Structure and Properties of Polylactic Acid Compounds

doi:10.19491/j.issn.1001-9278.2019.03.013

Abstract

Abstract: Nano-CaCO3 masterbatch was prepared by using continuous mixer and twin-screw extruder and then were added to polylactic acid (PLA) for injection molding. The effect of processing methods of the masterbatch on the dispersion of Nano-CaCO3 in the PLA matrix was investigated by thermogravimetric analysis, scanning electron microscopy and rotational rheometer. The results indicated that the masterbatch prepared by a continuous mixing method was more advantageous to the dispersion of Nano-CaCO3 in the PLA matrix, which could reduce the complex viscosity of the compounds and increase their crystallinity. At the same amount of masterbatch, the compounds obtained a less decrease in tensile strength but a more significant reinforement effect when using the masterbatch prepared by a continuous mixing method.

References

[1]Tekinalp H L, Kunc V, Velez-Garcia G M, et al.Highly oriented carbon fiber–polymer composites via additive manufacturing[J]. Composites Science & Technology, 2014, 105:144–150.[J].Composites Science & Technology, 2014, (105):144-150
[2]Wang Y R, Chen G X, Yang S Y, et al.Barbaloin loaded polydopamine-polylactide-TPGS (PLA-TPGS) nanoparticles against gastric cancer as a targeted drug delivery system: Studies in vitro and in vivo[J].Biochemical and Biophysical Research Communications, 2018, 499(1):8-16
[3]Armentano?I, Bitinis N, Fortunati ?E, et al.Multifunctional nanostructured PLA materials for packaging and tissue engineering[J].Progress in Polymer Science, 2013, 38(10-11):1720-1747
[4]Hayes D G, Wadsworth L C, Sintim H Y, et al.Effect of diverse weathering conditions on the physicochemical properties of biodegradable plastic mulches[J]. Polymer Testing, 2017, 62 :454-467.[J].Polymer Testing, 2017, (62):454-467
[5]Liang J Z, Tang C Y, Zhou L, et al.Melt density and flow property of PDLLAnano-CaCO3 bio-composites[J].Composites Part B: Engineering, 2011, 42(7):1897-1900
[6]马祥艳, 王翔宇, 李莉, et al.PLA/PBAT/纳米碳酸钙三元复合材料的微观形貌与性能[J]. 塑料, 2017(5):93-97..[J].塑料, 2017, (5):93-97
[7]MA X Y, Wang X Y, Li L, et al.Morphologies and Properties of PLA/PBAT/nano-CaCO3 Ternary Composite[J]. Plastics, 2017..[J].Plastics, 2017, (5):93-97
[8]Jin F L, Pang Q Q, Zhang T Y, et al.Synergistic reinforcing of poly(lactic acid)-based systems by polybutylenesuccinate and nano-calcium carbonate[J]. Journal of Industrial & Engineering Chemistry, 2015, 32 :77-84.[J].Journal of Industrial & Engineering Chemistry, 2015, (35):77-84
[9]张国勋, 谢林生, 韩晶杰, 等.双转子连续混炼机制备再生胶的结构与性能[J].高分子材料科学与工程, 2011, 27(3):109-111
[10]ZHANG G X, XIE L S, HAN J J, et al.Preparing Reclaimed Rubber by Two-Rotor Continuous Mixe[J].Journal of Industrial & Engineering Chemistry, 2011, 27(3):109-111
[11]Ammarcha C, Gatumel C, Dirion J L, et al.Transitory powder flow dynamics during emptying of a continuous mixer[J].Chemical Engineering & Processing Process Intensification, 2013, 65(7):68-75
[12]张海燕, 何雪涛, 杨卫民, 等.不同转子的双转子连续混炼机混炼效果的比较[J]. 中国塑料, 2009 (7):96-100.[J].高分子材料科学与工程, 2011, 27(3):109-111
[13]ZHANG H Y, HE X T, YANG W M, et al..Mixing simulation of twin-rotor continuous mixer with different rotors [J]. China Rubber/plastics Technology & Equipment, 2009 (7):96-100.[J].Journal of Industrial & Engineering Chemistry, 2011, 27(3):109-111
[14]王振华, 王佩璋.PMMA基稀土发光母料的制备及其性能研究[J]. 中国塑料, 2009 (9) :16-20.[J].中国塑料, 2009, 23(9):16-20
[15]WANG Z H, WANG P T.Preparation and Properties of PMMA-based Rare Earth Luminescent Masterbatch[J].China Plastics, 2009, 23(9):16-20
[16]徐杰, 历伟, 赵传壮, 等.“半稀溶液”中超高分子量聚乙烯链缠绕结构的演变行为[J]. 高分子通报, 2015 (7) :43-51.[J].高分子通报, 2015, (7):43-51
[17]XU J, LI W, ZHAO C Z, et al.Emergence of Chain Entanglement of UHMWPE in“Semi-Dilute Solution”[J].Polymer Bulletin, 2009, 23(9):16-20
[18]Nekhamanurak B, Patanathabutr P, Hongsriphan N.The Influence of Micro-Nano-CaCO3 on Thermal Stability and Melt Rheology Behavior of Poly(Lactic Acid)[J].Energy Procedia, 2014, 56(56):118-128
[19]马传国, 容敏智, 章明秋.纳米碳酸钙及其表面处理对等规聚丙烯结晶行为的影响[J].高分子学报, 2003, 1(3):381-386
[20]MA C G, RONG M Z, ZHANG M Q.Influence of nano-CaCO3 and surface modification on the crystallization behavior of isotactic polypropylene[J].Acta Polymerica Sinica, 2003, 138(3):381-386
[21]马沛岚, 苑会林, 李军.聚丙烯/纳米碳酸钙原位聚合复合材料的结晶特性研究[J]. 中国塑料, 2003 (9) :16-19.[J].中国塑料, 2003, (9):16-19
[22]MA P L, YUAN H L, LI J.Study on Crystallization Characteristics of PP/Nano-CaCO3 In-Situ Polymerized Composites[J]. China Plastics, 2003 (9) :16-19.[J].China Plastics, 2003, (9):16-19