硅酸盐水泥用水性环氧乳液的制备及性能评价
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摘要
硅酸盐水泥自身存在的收缩性大、脆性大、易开裂以及耐腐蚀性弱等缺陷,造成水泥石存在很多耐久性问题。在外界荷载、环境等因素的反复作用下,造成水泥基材料出现各种问题。针对于此,制备了一种粒径小,抗盐稳定性好的水性环氧乳液,并将其掺入到硅酸盐水泥中,研究了水性环氧乳液改性硅酸盐水泥的力学性能、抗渗性和耐腐蚀性能。研究结果表明,制备水性环氧乳液能有效地加强水泥的力学性能、抗渗性和耐腐蚀性能。
Due to the defects of large shrinkage, brittleness, easy cracking and weak corrosion resistance, the cement stone has many durability problems. Effected significantly by external mechanical loads and various environments, the cement-based materials appear various problems. In this article, a waterborne epoxy emulsion with small particle size and good salt resistant stability is prepared and incorporated into Portland cement. The mechanical properties, impermeability and corrosion resistance of the epoxy emulsion modified Portland cement were studied. The research results show that the epoxy?resin emulsion can effectively improve the corrosion resistance and compressive properties of the cement.
Due to the defects of large shrinkage, brittleness, easy cracking and weak corrosion resistance, the cement stone has many durability problems. Effected significantly by external mechanical loads and various environments, the cement-based materials appear various problems. In this article, a waterborne epoxy emulsion with small particle size and good salt resistant stability is prepared and incorporated into Portland cement. The mechanical properties, impermeability and corrosion resistance of the epoxy emulsion modified Portland cement were studied. The research results show that the epoxy?resin emulsion can effectively improve the corrosion resistance and compressive properties of the cement.
引文
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[7]徐峰,刘林军.聚合物水泥基建材与应用[M].北京:中国建筑工业出版社,2010.
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[9]张新贵,孔新民,王美洁,等.固井水泥浆胶乳的合成及性能评价[J].长江大学学报(自科版),2016,13(23):49-53.
[10]阎培渝,岳蕾,代丹,等.环氧树脂乳液对油井水泥石水化过程和力学性能的影响[J].硅酸盐通报,2016,35(7):2019-2023.
[2]符军放,赵琥,项先忠.一种固井合成水泥石的研制与室内评价[J].钻井液与完井液,2015,32(2):61-63.
[3]代丹,罗宇维,赵琥,等.油气田防腐固井用水性环氧乳液的制备及应用研究[J].涂料工业,2016,46(6):17-22.
[4]MORRIS K A,DEVILLE J P,JONES P.Resin-based cement alternatives for deep water well construction[J].SPE,155613,2012.
[5]YOUNG S,CHEW A,METTACH S,et al.Thermosettable cross-linked polymer system for optimization of wellbore stability and zonal isolation[J].OMC-2013-103,2013.
[6]肖力光,李海军,焦长军.新型环氧树脂乳液改性水泥砂浆性能的研究[J].混凝土,2006(11):46-49.
[7]徐峰,刘林军.聚合物水泥基建材与应用[M].北京:中国建筑工业出版社,2010.
[8]黄洪春,郑新权,刘爱萍.“三高”气田固井水泥体系研究[J].中国石油大学学报(自然科学版),2011,35(1):77-81,88.
[9]张新贵,孔新民,王美洁,等.固井水泥浆胶乳的合成及性能评价[J].长江大学学报(自科版),2016,13(23):49-53.
[10]阎培渝,岳蕾,代丹,等.环氧树脂乳液对油井水泥石水化过程和力学性能的影响[J].硅酸盐通报,2016,35(7):2019-2023.