抑冰融雪涂层的制备与性能研究
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摘要
为了研制具有黏结性好、疏水性强以及融冰雪性好的涂层,按正交设计将偶联剂、盐化物、疏水剂加入乳化沥青中制备抑冰融雪涂层,通过黏结性试验、冰黏附力试验、疏水性能试验研究各组分对涂层性能的影响,采用矩阵分析法优化得到涂层的最佳配比,最后验证了涂层的抑冰和融雪性能。研究结果表明:偶联剂对涂层的黏结性能影响最大,偶联剂掺量的增加使涂层附着力先增大后减小,当掺量为1.0%时涂层附着力达到最大为2.18 MPa;盐化物对冰黏附力影响最大,盐化物掺量增加会显著降低冰黏附力,掺量从5%增加到14%时冰黏附力降低了60.5%;疏水剂对接触角影响最大,疏水剂掺量的增加使接触角先增大后减小,在4%掺量时接触角达到最大为87.72°;优化得到涂层的最佳配比为5%疏水剂、1.0%偶联剂和14%盐化物,具有良好的抑冰融雪效果。
In order to develop a coating with good adhesion,strong hydrophobicity and good ice-snow melting properties,coupling agents,salts and hydrophobic agents are added into the emulsified asphalt to prepare ice-suppression and snow-melting coatings according to orthogonal design.The influence of each component on the performance of the coating is studied by bonding test,ice adhesion test and hydrophobic test.The optimum proportion of the coating is obtained by matrix analysis method.Finally,the icing and snowmelt performance of the coating are verified.The results show that coupling agent has the greatest influence on the adhesion of the coating.The adhesion increases first and then decreases with the increase of coupling agent content.The maximum adhesion reaches 2.18 MPa when the content of coupling agent is1.0%;salt has the greatest influence on the ice adhesion force;the ice adhesion force decreased by 60.5%when the salt content increased from 5%to 14%;hydrophobic agent has the greatest influence on contact angle;the contact angle increases firstly and then decreases with the increase of hydrophobic agent content;the maximum contact angle reaches 87.72 degree when the content of hydrophobic agent is 4%;and the optimum proportion of the coating is 5% hydrophobic agent,1.0% coupling agent and 14% salt compound which has good ice-snow melting effect.
In order to develop a coating with good adhesion,strong hydrophobicity and good ice-snow melting properties,coupling agents,salts and hydrophobic agents are added into the emulsified asphalt to prepare ice-suppression and snow-melting coatings according to orthogonal design.The influence of each component on the performance of the coating is studied by bonding test,ice adhesion test and hydrophobic test.The optimum proportion of the coating is obtained by matrix analysis method.Finally,the icing and snowmelt performance of the coating are verified.The results show that coupling agent has the greatest influence on the adhesion of the coating.The adhesion increases first and then decreases with the increase of coupling agent content.The maximum adhesion reaches 2.18 MPa when the content of coupling agent is1.0%;salt has the greatest influence on the ice adhesion force;the ice adhesion force decreased by 60.5%when the salt content increased from 5%to 14%;hydrophobic agent has the greatest influence on contact angle;the contact angle increases firstly and then decreases with the increase of hydrophobic agent content;the maximum contact angle reaches 87.72 degree when the content of hydrophobic agent is 4%;and the optimum proportion of the coating is 5% hydrophobic agent,1.0% coupling agent and 14% salt compound which has good ice-snow melting effect.
引文
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[14]孟定宇.低冰点雾封层材料设计及性能评价[D].哈尔滨:哈尔滨工业大学,2016.
[15]彭超,张滈,等.超疏水涂层对沥青路面防冰性能的影响[J].建筑材料学报,2018,2(21):281-285.
[2] RAMAKRISHNA D M,VIRARAGHAVAN T.Environmental impact of chemical deicers-areview[J].Water,Air,and Soil Pollution,2005,166(1/2/3/4):49-63.
[3]杨全兵.盐及融雪剂种类对混凝土剥蚀破坏影响的研究[J].建筑材料学报,2006,9(4):464-467.
[4]严霞,李法云,等.化学融雪剂对生态环境的影响[J].生态学杂志,2008,27(12):2209-2214.
[5]曾德亮,马志君.抗凝冰涂料应用技术研究[J].新型建筑材料,2011,4(10):56-57.
[6]李福建.薄冰易除型路面涂层应用技术研究[D].南京:东南大学,2012.
[7]蒋松利.环保型沥青路面融冰雪涂层研究[D].西安:长安大学,2012.
[8]李福普,王志军.长效型主动融雪沥青混合料路用性能试验[J].公路交通科技,2012,29(3):7-11.
[9]邓爱军.基于疏水表面的沥青路面抗凝冰性能研究[D].南京:东南大学,2013.
[10]姚运仕,陈团结,等.环保型长效自融冰雪路面涂层试验[J].交通运输工程学报,2013,13(4),8-15.
[11]陈拴发,刘状壮,等.融雪抑冰材料疏水性能影响因素研究[J].建筑材料学报,2013,16(6):1053-1057.
[12]陈瑶,单丽岩,等.沥青路面抗凝冰损伤防护材料研究[J].建筑材料学报,2014,17(2):340-343.
[13] Nejad F M,Tanzadeh J.Performance Evaluation of the Impact of Modified Silica Nano-materials on the Hydrophobicity of Hot-mix Asphalt[C]//2016International Conference on Transportation and Development:Projects and Practices for Prosperity.2016.
[14]孟定宇.低冰点雾封层材料设计及性能评价[D].哈尔滨:哈尔滨工业大学,2016.
[15]彭超,张滈,等.超疏水涂层对沥青路面防冰性能的影响[J].建筑材料学报,2018,2(21):281-285.
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