为高值化利用茶产业剩余物资源,以废弃茶生物质(Tea biomass,TB)为填料,聚丙烯(Polypropylene, PP)为基体,采用密炼-注塑工艺制备了TB/PP复合材料,考察了茶生物质填料种类、处理方式及其添加量对复合材料结构、形态及性能的影响。实验结果显示,以茶树枝为生物质填料制备的复合材料力学性能最佳,茶梗次之,茶叶最差；茶梗填料经水煮和马来酸酐接枝聚丙烯增容处理后,复合材料的拉伸强度、弯曲强度、拉伸模量及弯曲模量分别提高了23.4%、9.0%、16.9%和13.9%。SEM图片显示茶梗填料与基体界面相容性提高。随茶梗填料用量的增加,复合材料的拉伸模量、弯曲模量逐渐增大,而拉伸强度及断裂伸长率缓慢下降,吸水率增加,热性能得到改善。当TS添加量为30%(质量分数)时,复合材料的拉伸强度比PP减小7.3%,但弯曲强度、弯曲模量及拉伸模量则分别提高11%、86.1%和54.7%。浸水80 h后吸水率为0.89%。
Aimed to make high-valued use of the wasted tea biomass,tea biofiller/polypropylene composites were manufactured by internal mixing and inj ection molding machine.The effects of filler species,treatments and con-tents on the structure,morphology and properties were studied.The results showed that the composites made with tea fillers from the tree branch showed the best mechanical properties,followed by tea stalk and then tea leaf.The tea stalk treated with boiling water and MAPP couping agent showed an improvement of 23.4% in tensile strength,9.0%in bending strength,16.9% in tensile modulus,and 13.9% in flexural modulus,respectively.Scanning electron mi-croscope indicated that the complex treatment enhanced interfacial adhesion between tea stalk and PP.The stiffness of the TS/PP composites was significantly improved with the increase in TS content,while the strength and toughness slowly decreased.The thermal properties were improved with the addition of TS.When mass fraction of TS was 30%,the tensile strength was reduced by 7.3%,but the bending strength,modulus and tensile modulus was im-proved by 11%,86.1% and 54.7%,respectively,compared to PP.The water adsorption was 0.89% when the com-posites were soaked in water for 80 h.
参考文献
| [1] | HPS Abdul Khalil;MA Tehrani;Y Davoudpour.Natural fiber reinforced poIy(vinyi chloride) composites: A review[J].Journal of Reinforced Plastics and Composites,20135(5):330-356. |
| [2] | Meysam Zahedi;Hamidreza Pirayesh;Hossein Khanjanzadeh;Mohsen Mohseni Tabar.Organo-modified montmorillonite reinforced walnut shell/polypropylene composites[J].Materials & design,2013Oct.(Oct.):803-809. |
| [3] | Feng Yan-Hong;Li Xiang-Li;Jin Gang;Qu Jin-Ping;He He-Zhi.Preparation and properties of several Chinese herbal residue/polylactic acid composites[J].Journal of Thermoplastic Composite Materials,20152(2):214-224. |
| [4] | 侯人鸾;何春霞;薛娇;于旻;窦川川.麦秸秆粉/PP木塑复合材料紫外线加速老化性能[J].复合材料学报,2013(5):86-93. |
| [5] | J. Sahari;S.M. Sapuan;E.S. Zainudin;M.A. Maleque.Mechanical and thermal properties of environmentally friendly composites derived from sugar palm tree[J].Materials & design,2013Aug.(Aug.):285-289. |
| [6] | 谢枫;金玲莉;涂娟;乐美旺;王璠.茶废弃物综合利用研究进展[J].中国农学通报,2015(1):140-145. |
| [7] | Chirangano Mangwandi;Ahmad B. Albadarin;Liu JiangTao.Development of a value-added soil conditioner from high shear co-granulation of organic waste and limestone powder[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,2014:33-41. |
| [8] | Peksen A.;Yakupoglu G..Tea waste as a supplement for the cultivation of Ganoderma lucidum.[J].World Journal of Microbiology & Biotechnology,20094(4):611-618. |
| [9] | Atsuko Adachi;Aya Ioku;Kana Taniyama;Toshio Okano.Use of Tea or Coffee Lees as Adsorbent for Removal of Benzene from Wastewater[J].Journal of health science,20084(4):478-481. |
| [10] | 林维晟;叶翻彩;李素琼;龚新怀.废弃茶梗基活性炭的制备与性能研究[J].重庆理工大学学报（自然科学版）,2013(10):54-58. |
| [11] | Hacer Icen;Metin Guru.Extraction of caffeine from tea stalk and fiber wastes using supercritical carbon dioxide[J].The Journal of Supercritical Fluids,20093(3):225-228. |
| [12] | Shi Jin-shu;Li Jian-zhang;Fan Yong-ming;Ma Hong-xia.Preparation and properties of waste tea leaves particleboard[J].中国林学(英文版),2006(01):41-45. |
| [13] | 于学领;宋剑斌;杨文斌;杨江帆.KH-550含量对茶梗粉／HDPE 性能的影响[J].森林与环境学报,2015(1):92-96. |
| [14] | Anna Masek;Marian Zaborski;Anna Kosmalska.Eco-friendly elastomeric composites containing Sencha and Gun Powder green tea extracts[J].Comptes Rendus Chimie,20124(4):331-335. |
| [15] | Takahashi, Tetsuya;Aso, Yuji;Kasai, Wakako;Kondo, Tetsuo.Improving the antibacterial activity against Staphylococcus aureus of composite sheets containing wasted tea leaves by roasting[J].Journal of wood science,20105(5):403-410. |
| [16] | 刘如;曹金珍;彭尧.木粉组分对木塑复合材料性能的影响研究进展[J].化工进展,2014(8):2072-2083. |
| [17] | Y.W. Leong;M.B. Abu Bakar;Z.A. Mohd Ishak;A. Ariffin.Characterization of talc/calcium carbonate filled polypropylene hybrid composites weathered in a natural environment[J].Polymer Degradation and Stability,20043(3):411-422. |
| [18] | Shouhai Li;Chunpeng Wang;Xiaowei Zhuang;Yong Hu;Fuxiang Chu.Renewable Resource-Based Composites of Acorn Powderand Polylactide Bio-Plastic: Preparation and PropertiesEvaluation[J].Journal of polymers and the environment,20111(1):301-311. |
| [19] | Douglas D.Stokke;Douglas J.Gardner.Fundamental aspects of wood as a component of thermoplastic composites[J].Journal of Vinyl & Additive Technology,20032(2):96-104. |
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