Effect of polyvinyl alcohol emulsion modification on performance of hemp straw fiber/cementitious composite

WANG Chunhong; ZUO Qi; ZHI Zhongxiang; XU Lei; SARANI Zakaria; SHERAZ Hussain Siddique Yousfani

doi:10.13801/j.cnki.fhclxb.20200827.002

Volume 38 Issue 5

May 2021

Turn off MathJax

Article Contents

Article Navigation > Acta Materiae Compositae Sinica > 2021 > 38(5): 1567-1575

WANG Chunhong, ZUO Qi, ZHI Zhongxiang, et al. Effect of polyvinyl alcohol emulsion modification on performance of hemp straw fiber/cementitious composite[J]. Acta Materiae Compositae Sinica, 2021, 38(5): 1567-1575. doi: 10.13801/j.cnki.fhclxb.20200827.002

Citation:

WANG Chunhong, ZUO Qi, ZHI Zhongxiang, et al. Effect of polyvinyl alcohol emulsion modification on performance of hemp straw fiber/cementitious composite[J]. Acta Materiae Compositae Sinica, 2021, 38(5): 1567-1575. doi: 10.13801/j.cnki.fhclxb.20200827.002

Citation:

PDF( 1796 KB)

Effect of polyvinyl alcohol emulsion modification on performance of hemp straw fiber/cementitious composite

doi: 10.13801/j.cnki.fhclxb.20200827.002

1.
School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
2.
Key Laboratory of advanced textile composite materials, Tiangong University, Tianjin 300387, China
3.
Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
4.
Textile Engineering Department, NED University of Engineering & Technology, Karachi 999010, Pakistan

Received Date: 2020-07-06
Accepted Date: 2020-08-14

Available Online: 2020-08-28

Publish Date: 2021-05-01

Abstract

Abstract

In order to solve the problem of poor mechanical properties of hemp straw fiber/cementitious composite, a modified method of hemp straw fiber/cementitious composite by polyvinyl alcohol (PVA) emulsion was proposed. After optimizing the particle size and mixing amount of hemp straw fiber, PVA emulsion was blended with hemp straw fiber and cement to form the modified hemp straw fiber/cementitious composite. The effects of PVA emulsion with different mass ratios on the flexural strength, density, specific strength and flexural toughness of modified hemp straw fiber/cementitious composite were studied. The modification mechanism was revealed by moisture content, water absorption and fourier infrared spectroscopic analysis. The results show that when the particle size is 1700 μm and the mixing amount is 12%, the hemp straw fiber has the best reinforced effect on hemp straw fiber/cementitious composite. With the mass ratio of PVA emulsion increasing, the density of the modified hemp straw fiber/cementitious composite declines and the flexural toughness improves gradually. When the mass ratio of PVA emulsion is 4.8%, the flexural strength and specific strength of the modified hemp straw fiber/cementitious composite are increased by 17.17% and 20.50%, respectively, compared with the unmodified hemp straw fiber/cementitious composite. The interface between straw fiber and cement in hemp straw fiber/cementitious composite is improved and the negative effect of hemp straw fiber on hydration reaction is alleviated.
- hemp straw fiber,
- cementitious composite,
- polyvinyl alcohol (PVA) emulsion,
- interface,
- hydration reaction
Long Abstrsct
Innovation Points

FullText(HTML)

References(24)

References

[1]	王新玲, 杨广华, 钱文文, 等. 高强不锈钢绞线网增强工程水泥基复合材料受拉应力-应变关系[J]. 复合材料学报, 2020, 37(12): 3220-3228. WANG Xinling, YANG Guanghua, QIAN Wenwen, et al. Tensile stress-strain relationship of engineered cementitious composites reinforced by high-strength stainless steel wire mesh[J]. Acta Materiae Compositae Sinica, 2020, 37(12): 3220-3228(in Chinese).
[2]	张聪, 夏超凡, 袁振, 等. 混杂纤维增强应变硬化水泥基复合材料的拉伸本构关系[J]. 复合材料学报, 2020, 37(7): 1754-1762. ZHANG Cong, XIA Chaofan, YUAN Zhen, et al. Tension constitutive relation of hybrid fiber reinforced strain hardening cementitous composites[J]. Acta Materiae Compositae Sinica, 2020, 37(7): 1754-1762(in Chinese).
[3]	吴丽丽, 王云飞, 谢灵慧, 等. 玻璃纤维增强聚合物复合材料筋与工程水泥基复合材料黏结性能[J]. 复合材料学报, 2020, 37(3):696-706. WU Lili, WANG Yunfei, XIE Linghui, et al. Bonding behavior between glass fiber reinforced polymer composite bars and engineered cementitious composite[J]. Acta Materiae Compositae Sinica,2020,37(3):696-706(in Chinese).
[4]	MUKHERJEE A, MACDOUGALL C. Structural benefits of hempcrete infill in timber stud walls[J]. International Journal of Sustainable Building Technology and Urban Development,2013,4(4):295-305. doi: 10.1080/2093761X.2013.834280
[5]	DICK K J, PINKOS J. Thermal, moisture and energy performance of a hempcrete test structure in the Northern Prairie Climate of Manitoba, Canada[J]. Key Engineering Materials,2014,600:475-482. doi: 10.4028/www.scientific.net/KEM.600.475
[6]	ELFORDY S, LUCAS F, TANCRET F, et al. Mechanical and thermal properties of lime and hemp concrete (“hempcrete”) manufactured by a projection process[J]. Construction & Building Materials,2008,22(10):2116-2123.
[7]	张蓓蓓, 马颖, 耿维, 等. 中国油菜秸秆资源的生物质能源利用潜力评价[J]. 可再生能源, 2017, 35(1):126-134. ZHANG Beibei, MA Ying, GENG Wei, et al. Assessment of rape straw resources for biomass energy production in China[J]. Renewable Energy Resources,2017,35(1):126-134(in Chinese).
[8]	王金武, 唐汉, 王金峰. 东北地区作物秸秆资源综合利用现状与发展分析[J]. 农业机械学报, 2017, 48(5):1-21. WANG Jinwu, TANG Han, WANG Jinfeng. Comprehensive utilization status and development analysis of crop straw resource in Northeast China[J]. Transactions of the Chinese Society for Agricultural Machinery,2017,48(5):1-21(in Chinese).
[9]	CESAR N, AMZIANE S, CHATEAUNEUF A, et al. Variability of the mechanical properties of hemp concrete[J]. Materials Today Communications,2016,7:122-133. doi: 10.1016/j.mtcomm.2016.03.003
[10]	宋丽贤, 张平, 姚妮娜, 等. 木粉粒径和填量对木塑复合材料力学性能影响研究[J]. 功能材料, 2013, 44(17):2451-2454. SONG Lixian, ZHANG Ping, YAO Nina, et al. Study on effect of particle diameter and filling quantity of wood flour on mechanical properties of wood-plastics composite[J]. Journal of Functional Materials,2013,44(17):2451-2454(in Chinese).
[11]	王春红, 支中祥, 任子龙, 等. 稻壳纤维粒径和掺量分数对水泥复合材料性能的影响[J]. 复合材料学报, 2018, 35(6):1582-1589. WANG Chunhong, ZHI Zhongxiang, REN Zilong, et al. Effect of rice husk fiber particle size and content on the properties of cement composite[J]. Acta Materiae Compositae Sinica,2018,35(6):1582-1589(in Chinese).
[12]	张琳, 刘福胜, 任淑霞, 等. 小麦秸秆纤维水泥基材料性能试验研究[J]. 混凝土, 2013(9):74-76. ZHANG Lin, LIU Fusheng, REN Shuxia, et al. Research on properties of cementitious wheat straw fiber composite[J]. Concrete,2013(9):74-76(in Chinese).
[13]	SINGH S M. Alkali resistance of some vegetable fibers and their adhesion with Portland-cement[J]. Research and Industry,1985,30(2):121-126.
[14]	CANOVAS M F, SELVA N H, KAWICHE G M. New economical solutions for improvement of durability of Portland cement mortars reinforced with sisal fibres[J]. Materials & Structures,1992,25(7):417-422.
[15]	SAVASTANO H, WARDEN P G, COUTTS R S P. Potential of alternative fibre cements as building materials for developing areas[J]. Cement & Concrete Composites,2003,25(6):585-592.
[16]	陈国新, 慈军, 秦岷, 等. 不同界面处理法棉花秸秆水泥基砌块力学性能影响研究[J]. 混凝土, 2013(11):139-141. CHEN Guoxin, CI Jun, QIN Min, et al. Study on mechanical impact of cotton stalk cement-based block with different surface modification methods[J]. Concrete,2013(11):139-141(in Chinese).
[17]	熊德胜. 高聚物改性稻壳—水泥复合材料研究[D]. 哈尔滨: 东北林业大学, 2012. XIONG Desheng. Study on polymer modified rice husk-cement composites[D]. Harbin: Northeast Forestry University, 2012(in Chinese).
[18]	中国国家标准化管理委员会. 纤维水泥制品试验方法: GB/T 7019—2014[S]. 北京: 中国标准出版社, 2014. Standardization Administration of the People’s Republic of China. Test methods for fiber cement prdoucts: GB/T 7019—2014[S]. Beijing: China Standards Press, 2014(in Chinese).
[19]	HAN J G, YAN P Y. Influence of fiber type on concrete flexural toughness[J]. Advanced Materials Research,2011,287-290:1179-1183. doi: 10.4028/www.scientific.net/AMR.287-290.1179
[20]	刘巧玲. 秸秆基混凝土的性能研究[D]. 长沙: 湖南农业大学, 2013. LIU Qiaoling. Study on the characteristics of straw-based[D]. Changsha: Hunan Agricultural University, 2013(in Chinese).
[21]	胡洁琼, 赵国栋, 刘开平, 等. 改性秸秆纤维对水泥砂浆韧性的影响研究[J]. 工程建设与设计, 2017(2):72-74. HU Jieqiong, ZHAO Guodong, LIU Kaiping, et al. Effects of modified wheat straw fibers on the toughness of the cement mortar[J]. Construction & Design for Project,2017(2):72-74(in Chinese).
[22]	王继博, 刘玮雯, 罗作球, 等. 不同表面处理麦秸秆对水泥基材料力学性能的影响[J]. 商品混凝土, 2017(12):27-31. WANG Jibo, LIU Weiwen, LUO Zuoqiu, et al. Effects of wheat straw treated with different surface treatments on mechanical properties of cement-based materials[J]. Eady-Mixed Concrete,2017(12):27-31(in Chinese).
[23]	DENIS D, CHRISTINE L. 水泥水化与水化硅酸钙的结构和化学组成之间的相互作用[J]. 硅酸盐学报, 2015, 43(10):1324-1330. DENIS D, CHRISTINE L. Mutual interaction between hydration of portland cement and structure and stoichiometry of hydrated calsium silicate[J]. Journal of the Chinese Ceramic Society,2015,43(10):1324-1330(in Chinese).
[24]	JOSHI V S, JOSHI M J. FTIR spectroscopic, thermal and growth morphological studies of calcium hydrogen phosphate dihydrate crystals[J]. Crystal Research & Technology,2003,38(9):817-821.