植物油多元醇与L赖氨酸乙酯二异氰酸酯原位单体反应型增韧聚乳酸

doi:10.19491/j.issn.1001-9278.2018.10.008

中国塑料 ›› 2018, Vol. 32 ›› Issue (10): 50-57.DOI: 10.19491/j.issn.1001-9278.2018.10.008

植物油多元醇与L赖氨酸乙酯二异氰酸酯原位单体反应型增韧聚乳酸

陈宁^1,2,单鹏嘉^1,2,刘宏治^1,2,赵兴科³,陈金周⁴

1. 浙江农林大学工程学院
2. 浙江省竹资源与高效利用协同创新中心
3. 合肥学院化工与材料工程系 4.郑州大学材料科学与工程学院

收稿日期:2018-04-12 修回日期:2018-09-06 出版日期:2018-10-26 发布日期:2018-10-26
基金资助:
浙江省自然科学基金（LY15E030007）；国家自然科学基金（51573169）；中国科学院工程塑料重点实验室（化学研究所）开放课题；浙江农林大学科研发展基金（2013FR088）

Study on Toughening of Poly(lactic acid) with Vegetable Oil Polyol and L-lysine Diisocyanate Through In-situ Reactive Blending

Received:2018-04-12 Revised:2018-09-06 Online:2018-10-26 Published:2018-10-26
Supported by:

摘要/Abstract

摘要： 以可生物降解的植物油多元醇（HM10100）和L-赖氨酸乙酯二异氰酸酯（LDI）作为反应性增韧单体，熔融共混过程中原位形成与聚乳酸（PLA）基体相容性良好、且分散均匀的交联聚氨酯弹性体增韧相，最终制备出一种新型全生物降解的增韧PLA材料，分别研究了2种反应型增韧单体总质量含量和它们之间异氰酸酯基团与羟基的等当量比（nNCO/nOH）对PLA共混物力学、结晶性能及冲击断面形貌的影响规律。结果表明，当2种增韧单体总含量为40 %（质量分数，下同）且nNCO/nOH =1:0.8时，共混物的缺口冲击强度最高，约为纯PLA的3.5倍；随着2种增韧单体总含量和官能团摩尔比的增加，共混物中PLA组分的冷结晶温度(Tcc)和玻璃化转变温度(Tg)增加。

Abstract: A novel type of fully biodegradable PLA compounds were prepared by using biobased and biodegradable soybean polyol (HM10100) and L-lysine diisocyanate (LDI) as reactivetoughening monomers via reactive blending.The effects of contents of two reactive monomers and the molar ratio of isocyanate groups (—NCO) and hydroxyl groups (—OH) on the mechanical properties and morphologies of the compounds were investigated.The results indicated that the PLA compounds achieved a maximum value in notched impact strength at the NCO/OH equivalent ratio of 1:0.8 (mol/mol) and the PLA/HM10100 & LDI weight ratio of 60/40.The notched impact strength was improved by a factor of 2.5 compared to that of pure PLA.Thermal analysis results indicated that the cold crystallization temperature and glass transition temperature of the compounds increased with an increase in the content of toughening monomers and the molar ratio of functional groups.

陈宁单鹏嘉刘宏治赵兴科陈金周. 植物油多元醇与L赖氨酸乙酯二异氰酸酯原位单体反应型增韧聚乳酸[J]. 中国塑料, 2018, 32(10): 50-57.

参考文献

[1] Liu H, Zhang J. Research progress in toughening modification of poly(lactic acid) [J]. Journal of Polymer Science Part B: Polymer Physics ,2011, 49(15):1051-1083.
[2] Kfoury G, Raquez J-M, Hassouna F, et al. Recent advances in high performance poly(lactide): from “green” plasticization to super-tough materials via (reactive) compounding [J]. Frontiers in
Chemistry , 2013, 1(1):1-46.
[3] Shi Y-Y, Du X-C, Yang J-H, et al. Super toughened poly(L-lactide)/thermoplastic polyurethane blends achieved by adding dicumyl peroxide [J]. Polymer-Plastics Technology and Engineering ,
[4] Xiu H, Huang C, Bai H, et al. Improving impact toughness of polylactide/poly(ether)urethane blend via designing the phase morphology assisted by hydrophilic silica nanoparticles [J]. Polymer ,2014, 55(6):1593-1600.
[5] Shi Y, Zhang W, Yang J, et al. Super toughening of the poly(L-lactide)/thermoplastic polyurethane blends by carbon nanotubes [J]. RSC Advances , 2013, 3（48）:26271-26282.
[6] Anderson KS, Lim SH, Hillmyer MA. Toughening of polylactide by melt blending with linear low-density polyethylene [J]. Journal of Applied Polymer Science ,2003, 89(14):3757-3768.
[7] Liu G-C, He Y-S, Zeng J-B, et al. In situ formed crosslinked polyurethane toughened polylactide [J]. Polymer Chemistry : 2014, 5(7):2530-2539.
[8] He Y-S, Zeng J-B, Liu G-C, et al. Super-tough poly(L-lactide)/crosslinked polyurethane blends with tunable impact toughness [J]. RSC Advances : 2014, 4(25):12857-12866.
[9] Fang G, Jiang F, Wu Q, et al. Supertough polylactide materials prepared through in situ reactive blending with PEG-based diacrylate monomer [J]. ACS Applied Materials & Interfaces : 2014, 6(16): 13552-13563.
[10] Harada M， Ohya T, Iida K, et al. Increased impact strength of biodegradable poly(lactic acid)/poly(butylene succinate) blend composites by using isocyanate as a reactive processing agent [J]. Journal of Applied Polymer Science : 2007, 106(3): 1813-1820.
[11] Wang R， Wang S, Zhang Y, et al. Toughening modification of PLLA/PBS blends via in situ compatibilization [J]. Polymer Engineering and Science : 2009, 49(1):26-33.
[12] Ojijo V, Ray SS, Sadiku R. Toughening of biodegradable polylactide/poly(butylene succinate-co-adipate) blends via in situ reactive compatibilization [J]. ACS Applied Materials & Interfaces :2013, 5(10):4266? 4276
[13] Noda I, Satkowski MM, Dowrey AE, et al. Polymer alloys of Nodax copolymers and poly(lactic acid) [J]. Macromolecular Bioscience : 2004, 4(3):269-275.
[14] Schreck KM, Hillmyer MA. Block copolymers and melt blends of polylactide with NodaxTM microbial polyesters: preparation and mechanical properties [J]. Journal of Biotechnology : 2007, 132(3): 287-295.
[15] Robertson ML, Chang K, Gramlich WM, et al. Toughening of polylactide with polymerized soybean oil [J]. Macrmolecules : 2010, 43(4):1807-1814.
[16] Robertson ML, Gramlich WM, Hillmyer MA. Reactive compatibilization of poly(L-lactide) and conjugated soybean oil [J]. Macrmolecules : 2010, 43(5):2313-2321.
[17] Robertson L, Paxton JM, Hillmyer MA. Tough blends of polylactide and castor oil [J]. ACS Applied Materials & Interfaces : 2011, 3(9): 3402-3410.
[18] Vijayarajan S, Selke SEM, Matuana LM. Continuous blending approach in the manufacture of epoxidized soybean-plasticized poly(lactic acid) sheets and films [J]. Macromolecular Materials and Engineering : 2014, 299(5):622-630.
[19] 卢彬,罗钟瑜,修玉英. 植物油多元醇的研究进展 [J]. 聚氨酯工业: 2007, 22(6):10-13.
[20] 韩健,叶霖,张爱英，等. 聚(ε-己内酯)/赖氨酸二异氰酸酯基可降解聚氨酯的合成与表征及其电纺丝研究 [J]. 生物医学工程学杂志 : 2010, 27(6):1274-1279.

植物油多元醇与L赖氨酸乙酯二异氰酸酯原位单体反应型增韧聚乳酸

Study on Toughening of Poly(lactic acid) with Vegetable Oil Polyol and L-lysine Diisocyanate Through In-situ Reactive Blending

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