高炉渣纤维酸碱腐蚀性及制品憎水性研究
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摘要
将酸度系数为1.2,1.4,1.6的高炉渣纤维分别浸入酸、碱溶液和去离子水中,浸泡24 h,研究了酸、碱环境对不同酸度系数的高炉渣纤维的影响,主要是质量变化和微观形貌变化。分别采用pH值=8的硅溶胶溶液和pH值=6的聚乙烯醇溶液为粘结剂制备了矿渣纤维板,测量了两种矿渣纤维板润湿角的大小。结果发现,高炉渣纤维的耐酸性较差,在pH值=0的酸性溶液中质量损失最大,纤维表面腐蚀严重,Mk值越小的纤维的耐腐蚀性越差。对比两种粘结剂制备的纤维板的润湿角发现,硅溶胶为粘结剂制备的纤维板润湿角为110.3°,憎水性较好,而聚乙烯醇为粘结剂制备的纤维板的润湿角为91.4°,憎水性较差,表明粘结剂的酸碱性会直接影响纤维制品的性能。
The effects of acid and alkali corrosion on the blast furnace slag fibers and the hydrophobicity of fiber products were studied in this paper. The blast furnace slag fibers were immersed into acid solution, alkali solution and deionized water respectively for 24 h and the acidity coefficient of the fibers were 1.2, 1.4 and 1.6 respectively. Both the mass lose and the morphologies of the fiber surface after the treatment were analyzed. Fiber products were produced by using polyvinyl alcohol solution of pH=6 and silica sol solution of pH=8 as binder and the wetting angle of the two kinds of fiber products were tested. The results showed that the acid resistance of the blast furnace was worse. The mass loss was the largest in the acid solution of pH=0 and the corrosion on the surface of the fiber was serious. It was discovered that the corrosion resistance of the fiber with a smaller acidity coefficient was worse. A comparison of the wetting angle of the two kinds of fiber products showed that the hydrophobicity of fiber board using silica sol as binder was better and the wetting angle of the fiber board was 114.6° while the wetting angle of the fiber board using polyvinyl alcohol as binder was 95.6°. It indicated that the acidity and the alkalinity of the binder would directly influence the performance of fiber products.
The effects of acid and alkali corrosion on the blast furnace slag fibers and the hydrophobicity of fiber products were studied in this paper. The blast furnace slag fibers were immersed into acid solution, alkali solution and deionized water respectively for 24 h and the acidity coefficient of the fibers were 1.2, 1.4 and 1.6 respectively. Both the mass lose and the morphologies of the fiber surface after the treatment were analyzed. Fiber products were produced by using polyvinyl alcohol solution of pH=6 and silica sol solution of pH=8 as binder and the wetting angle of the two kinds of fiber products were tested. The results showed that the acid resistance of the blast furnace was worse. The mass loss was the largest in the acid solution of pH=0 and the corrosion on the surface of the fiber was serious. It was discovered that the corrosion resistance of the fiber with a smaller acidity coefficient was worse. A comparison of the wetting angle of the two kinds of fiber products showed that the hydrophobicity of fiber board using silica sol as binder was better and the wetting angle of the fiber board was 114.6° while the wetting angle of the fiber board using polyvinyl alcohol as binder was 95.6°. It indicated that the acidity and the alkalinity of the binder would directly influence the performance of fiber products.
引文
[1] Samet B,Chaabouni M.Characterization of the Tunisian blast-furnace slag and its application in the formulation of a cement[J].Cement & Concrete Research,2004,34(7):1153-1159.
[2] Kumar S,Kumar R,Bandopadhyay A,et al.Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement[J].Cement and Concrete Composites,2008,30(8):679-685.
[3] Zhao Y,Chen D,Bi Y,et al.Preparation of low cost glass-ceramics from molten blast furnace slag[J].Ceramics International,2012,38(3):2495-2500.
[4] ?irok B,Bizjan B,Orbani■,et al.Mineral wool melt fiberization on a spinner wheel[J].Chemical Engineering Research and Design,2014,92(1):80-90.
[5] Zhang Zunqian,Zhang Yuzhu,Xing Hongwei,et al.Preparation and properties of blast furnace slag wool insulation board[J].Journal of Functional Materials,2014,45(4):149-152(in Chinese).张遵乾,张玉柱,邢宏伟,等.高炉渣棉保温板的制备及性能研究[J].功能材料,2014,45(4):149-152.
[6] Wang T M,Hou K H,Chang Y T,et al.The preparation of slag fiber and its application in heat resistant friction composites[J].Materials & Design,2010,31(9):4296-4301.
[7] Zafar A,Schj?dt-Thomsen J,Sodhi R,et al.Investigation of the ageing effects on phenol-urea-formaldehyde binder and alkanol amine-acid anhydride binder coated mineral fibres[J].Polymer Degradation and Stability,2013,98(1):339-347.
[8] Kumosa L,Armentrout D,Kumosa M.An evaluation of the critical conditions for the initiation of stress corrosion cracking in unidirectional E-glass/polymer composites[J].Composites Science & Technology,2001,61(4):615-623.
[9] Liu J,Jiang M,Wang Y,et al.Tensile behaviors of ECR-glass and high strength glass fibers after NaOH treatment[J].Ceramics International,2013,39(8):9173-9178.
[10] Nasir V,Karimipour H,Taheri-Behrooz F,et al.Corrosion behaviour and crack formation mechanism of basalt fibre in sulphuric acid[J].Corrosion Science,2012,64:1-7.
[11] Gu H.Tensile behaviour of some high performance filaments after sulphuric acid treatment[J].Materials and Design,2008,29(8):1671-1674.
[12] Gu H.Tensile behaviours of quartz,aramid and glass filaments after NaCl treatment[J].Materials & Design,2009,30(3):867-870.
[13] Gu H.Tensile behaviours of some high performance filaments after NaOH treatment[J].Materials & Design,2008,29(10):1893-1896.
[14] Dong Z J,Li X K,Yuan G M,et al.Tensile strength,oxidation resistance and wettability of carbon fibers coated with a TiC layer using a molten salt method[J].Materials & Design,2013,50(17):156-164.
[15] Quentin Bénard,Fois M,Grisel M.Roughness and fibre reinforcement effect onto wettability of composite surfaces[J].Applied Surface Science,2007,253(10):4753-4758.
[16] An F,Lu C,Guo J,et al.Preparation of vertically aligned carbon nanotube arrays grown onto carbon fiber fabric and evaluating its wettability on effect of composite[J].Applied Surface Science,2011,258(3):1069-1076.
[2] Kumar S,Kumar R,Bandopadhyay A,et al.Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement[J].Cement and Concrete Composites,2008,30(8):679-685.
[3] Zhao Y,Chen D,Bi Y,et al.Preparation of low cost glass-ceramics from molten blast furnace slag[J].Ceramics International,2012,38(3):2495-2500.
[4] ?irok B,Bizjan B,Orbani■,et al.Mineral wool melt fiberization on a spinner wheel[J].Chemical Engineering Research and Design,2014,92(1):80-90.
[5] Zhang Zunqian,Zhang Yuzhu,Xing Hongwei,et al.Preparation and properties of blast furnace slag wool insulation board[J].Journal of Functional Materials,2014,45(4):149-152(in Chinese).张遵乾,张玉柱,邢宏伟,等.高炉渣棉保温板的制备及性能研究[J].功能材料,2014,45(4):149-152.
[6] Wang T M,Hou K H,Chang Y T,et al.The preparation of slag fiber and its application in heat resistant friction composites[J].Materials & Design,2010,31(9):4296-4301.
[7] Zafar A,Schj?dt-Thomsen J,Sodhi R,et al.Investigation of the ageing effects on phenol-urea-formaldehyde binder and alkanol amine-acid anhydride binder coated mineral fibres[J].Polymer Degradation and Stability,2013,98(1):339-347.
[8] Kumosa L,Armentrout D,Kumosa M.An evaluation of the critical conditions for the initiation of stress corrosion cracking in unidirectional E-glass/polymer composites[J].Composites Science & Technology,2001,61(4):615-623.
[9] Liu J,Jiang M,Wang Y,et al.Tensile behaviors of ECR-glass and high strength glass fibers after NaOH treatment[J].Ceramics International,2013,39(8):9173-9178.
[10] Nasir V,Karimipour H,Taheri-Behrooz F,et al.Corrosion behaviour and crack formation mechanism of basalt fibre in sulphuric acid[J].Corrosion Science,2012,64:1-7.
[11] Gu H.Tensile behaviour of some high performance filaments after sulphuric acid treatment[J].Materials and Design,2008,29(8):1671-1674.
[12] Gu H.Tensile behaviours of quartz,aramid and glass filaments after NaCl treatment[J].Materials & Design,2009,30(3):867-870.
[13] Gu H.Tensile behaviours of some high performance filaments after NaOH treatment[J].Materials & Design,2008,29(10):1893-1896.
[14] Dong Z J,Li X K,Yuan G M,et al.Tensile strength,oxidation resistance and wettability of carbon fibers coated with a TiC layer using a molten salt method[J].Materials & Design,2013,50(17):156-164.
[15] Quentin Bénard,Fois M,Grisel M.Roughness and fibre reinforcement effect onto wettability of composite surfaces[J].Applied Surface Science,2007,253(10):4753-4758.
[16] An F,Lu C,Guo J,et al.Preparation of vertically aligned carbon nanotube arrays grown onto carbon fiber fabric and evaluating its wettability on effect of composite[J].Applied Surface Science,2011,258(3):1069-1076.