用马来酸酐(MAH)在碳酸钙(CaCO3)表面引入双键,通过原位固相接枝法将聚丙烯蜡(PPW)化学键合在CaCO3表面,制得3种接枝率的CaCO3-MAH-PPW.将这3种改性CaCO3填充聚丙烯(PP)制备复合材料,研究了PP/CaCO3界面作用对复合材料强度的影响.结果表明,CaCO3表面经PPW接枝改性后在PP中的分散性提高,与PP相容性变好;随着改性CaCO3表面PPW接枝率的提高,CaCO3与PP之间界面作用逐渐增强.当PPW接枝率为4.48 mg PPW/g CaCO3时,CaCO3与PP之间的界面作用最强,复合材料拉伸强度下降最小,杨氏模量提升最大,当m(PP)∶m(CaCO3)=100∶50时,杨氏模量达0.86 GPa,是纯PP的1.63倍;而PPW化学接枝率为2.49 mg PPW/g CaCO3时,CaCO3与PP之间的界面作用适中,复合材料缺口冲击强度提升最大,且当m(PP)∶m(CaCO3)=100∶10时,缺口冲击强度达3.91 kJ/m2,是纯PP的1.35倍.
参考文献
| [1] | Zebarjad S M,Sajjadi S A,Tahani M.Modification of Fracture Toughness of Isotactic Polypropylene with a Combination of EPR and CaCO3 Particles[J].J Mater Process Tech,2006,175(1/3):446-451. |
| [2] | Zokaei S,Lesan Khosh M R,Bagheri R.Study of Scratch Resistance in Homo-and Co-polypropylene Filled with Nanometric Calcium Carbonate[J].Mater Sci Eng A,2007,445/446:526-536. |
| [3] | QIAO Fang,ZHU Xiaoguang,GUAN Shumin,et al.Criterion of Interracial Adhesion for Filler Toughening Polyolefin Composites[J].Polym Mater Sci Eng,1996,12 (6):63-67 (in Chinese).乔放,朱晓光,关淑敏,等.硅灰石增韧聚合物的界面粘接判据[J].高分子材料科学与工程,1996,12(6):63-67. |
| [4] | FU Zheng.Polymer Material Strength and Failure Analysis[M].Beijing:Chemical Industry Press,2005:110-111 (in Chinese).傅政.高分子材料强度及破坏行为[M].北京:化学工业出版社,2005,6:110-111. |
| [5] | Wang Y H,Shen H,Li G,et al.Effect of Interfacial Interaction on the Crystallization and Mechanical Pproperties of PP/ Nano-CaCO3 Composites Modified by Compatibilizers[J].J Appl Polym Sci,2009,113 (3):1584-1592. |
| [6] | WANG Yuhai,ZHANG Zitao,SHEN Hao.Investigation on Interfacial Interaction in Nano-CaCO3/Compatibilizer/ Polypropylene Composites[J].Acta Polym Sin,2010,(12):1444-1450(in Chinese).王玉海,章自涛,沈浩.纳米CaCO3/相容剂/PP中的界面相互作用研究[J].高分子学报,2010,(12):1444-1450. |
| [7] | JIN Jinping,ZHANG Hengjing,JIANG Hui.Effect of Compatibilizer on the Properties and Morphology of PP/PP-g-MAH/ CaCO3 Composites[J].Plast Sci Technol,2011,39 (8):55-58 (in Chinese).金建平,张恒靖,蒋辉.增容剂对PP/PP-g-MAH/CaCO3复合材料性能与形态的影响[J].塑料科技,2011,39(8):55-58. |
| [8] | JIA Runli,MING Yan,WAN Shun.Reactive Compatibilization and Its Application in Polymer Modification[J].Polym Bull,2003,(3):71-79(in Chinese).贾润礼,明艳,万顺.几种反应型相容剂及其在聚合物共混改性中的应用[J].高分子通报,2003,(3):71-79. |
| [9] | SHENG Yu,ZHU Deqin,WANG Jianfeng.A Preparation Method to Inorganic Powder with "Core-Shell" Structure Through Surface Modification:CN,200710144038.6[P],2010-11-8(in Chinese).生瑜,朱德钦,王剑峰.一种经表面改性制备具有“核-壳”结构的无机粉体的方法:中国,200710144038.6[P],2007-12-18. |
| [10] | SHENG Yu,ZHU Deqin,WANG Jianfeng,et al.Calcium Carbonate Surface Coating Modification and Its Effect on the Mechanical Properties of Filled Polypropylene[J].Acta Polym Sin,2008,(8):813-817(in Chinese).生瑜,朱德钦,王剑峰,等.CaCO3表面包覆改性及其对填充PP力学性能的影响[J].高分子学报,2008,(8):813-817. |
| [11] | GB/T 1040-2006.Plastics-Determination of Tensile Properties[S].Beijing:China Standards Press,2006(in Chinese).GB/T 1040-2006.塑料拉伸性能的测定[S].北京:中国标准出版社,2006. |
| [12] | GB/T1043-2008.Plastics-Determination of Charpy Impact Properties[S].Beijing:China Standards Press,2008 (in Chinese).GB/T1043-2008.塑料简支梁冲击性能的测定[S].北京:中国标准出版社,2008. |
| [13] | Zhang Q X,Yu Z Z,Xie X L,et al.Crystallization and Impact Energy of Polypropylene/CaCO3 Nanocomposites with Nonionic Modifier[J].Polymer,2004,45(17):5985-5994. |
| [14] | Demjén Z,Pukánszky B,Nagy J.Evaluation of Interfacial Interaction in Polypropylene/Surface Treated CaCO3 Composites[J].Compos Part A:Appl Sci Manuf,1998,29(3):323-329. |
| [15] | Guth E.Theory of Filler Reinforcement[J].JAppl Phys,1945,16(1):20-25. |
| [16] | Zhang Q X,Yu Z Z,Xie X L,et al.Crystallization and Impact Energy of Polypropylene/CaCO3 Nanocomposites with Nonionic Modifier[J].Polymer,2004,45 (17):5985-5994. |
| [17] | Maiti S N,Lopez B H.Tensile Properties of Polypropylene/kaolin Composites[J].J Appl Polym Sci,1992,44(2):353-360. |
| [18] | Kucera J,Nezbedova E.Poly(propylene) with Micro-fillers-the Way of Enhancement of Toughness[J].Polym Adv Tech,2007,18(2):112-116. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%