CN103359966A - 一种复合钢筋阻锈剂及其制备方法 - Google Patents

一种复合钢筋阻锈剂及其制备方法 Download PDF

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CN103359966A
CN103359966A CN2013102802924A CN201310280292A CN103359966A CN 103359966 A CN103359966 A CN 103359966A CN 2013102802924 A CN2013102802924 A CN 2013102802924A CN 201310280292 A CN201310280292 A CN 201310280292A CN 103359966 A CN103359966 A CN 103359966A
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amine
steel bar
reinforcing steel
amino alcohol
corrosion inhibitor
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郭文瑛
杨医博
陈峭卉
莫海鸿
王恒昌
梁松
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Guangdong Building Material Research Institute
South China University of Technology SCUT
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    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1018—Coating or impregnating with organic materials
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/14—Nitrogen-containing compounds
    • C23F11/141—Amines; Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/14—Nitrogen-containing compounds
    • C23F11/141—Amines; Quaternary ammonium compounds
    • C23F11/142—Hydroxy amines
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/60—Agents for protection against chemical, physical or biological attack
    • C04B2103/61—Corrosion inhibitors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/26—Corrosion of reinforcement resistance

Abstract

本发明公开了一种复合钢筋阻锈剂及其制备方法，以原料的质量百分比计，该复合钢筋阻锈剂由如下组份组成：氨基醇10～25%、胺2～10%、苯甲酸钠1～10%；余量为水；所述的氨基醇为乙醇胺、二乙醇胺、三乙醇胺、N‐甲基乙醇胺、N，N‐二甲基乙醇胺、N‐乙基乙醇胺、N，N‐二乙基乙醇胺、三异丙醇胺、N‐（2‐羟乙基）乙二胺和N，N‐二羟乙基乙二胺中的一种或多种；所述的胺为甲基胺、二甲胺、乙二胺、苯胺、苯甲胺和二环己胺中的一种或多种。制备时，将按质量比例称取的氨基醇、胺、苯甲酸钠依次加入水中搅拌均匀即可。本发明的复合钢筋阻锈剂阻锈效果好，且对混凝土性能无不良影响。

Description

一种复合钢筋阻锈剂及其制备方法
技术领域
本发明涉及一种钢筋阻锈剂，特别是特别涉及一种复合钢筋阻锈剂及其制备方法；属于建筑材料领域。
背景技术
氯盐环境下钢筋锈蚀导致的混凝土结构性能退化乃至失效破坏，已成为全世界普遍关注并日益突出的一大灾害，我国沿海工程由于钢筋锈蚀导致的破坏情况也非常严重。
氯盐环境下提高混凝土结构耐久性的途径包括基本措施和附加措施，基本措施是采用高性能混凝土和提高保护层厚度，附加措施包括耐腐蚀钢筋、环氧涂层钢筋、阴极保护、混凝土表面涂层和钢筋阻锈剂等，其中使用钢筋阻锈剂是应用最广的附加措施之一。
近年来钢筋阻锈剂在我国得到了快速发展，相关研究和应用逐年增加。按不同的分类方法，钢筋阻锈剂可分为水剂和粉剂；无机、有机和复合阻锈剂；控制阳极和控制阴极等多种类型。
由于无机亚硝酸盐阻锈剂存在环保方面的问题，近年来有机阻锈剂得到了快速发展。掺入型有机阻锈剂通常有胺类、炔醇类、醛类、有机类化合物、有机硫化合物、羧酸及其盐类、磺酸及其盐类、杂环化合物等。但有机阻锈剂在钢筋阻锈和影响混凝土性能方面难以兼容；一般的有机阻锈剂会影响混凝土的性能，使得混凝土强度降低。
发明内容
为解决上述问题，本发明的目的在于提供一种阻锈效果好，且对混凝土性能无不良影响的复合钢筋阻锈剂。
本发明另一目的在提供上述复合钢筋阻锈剂的制备方法。
本发明的目的通过以下技术方案实现：
一种复合钢筋阻锈剂，以原料的质量百分比计，由如下组份组成：
氨基醇：10～25%
胺：2～10%
苯甲酸钠：1～10%
余量为水；
所述的氨基醇为乙醇胺、二乙醇胺、三乙醇胺、N‐甲基乙醇胺、N，N‐二甲基乙醇胺、N‐乙基乙醇胺、N，N‐二乙基乙醇胺、三异丙醇胺、N‐（2‐羟乙基）乙二胺和N，N‐二羟乙基乙二胺中的一种或多种；
所述的胺为甲基胺、二甲胺、乙二胺、苯胺、苯甲胺和二环己胺中的一种或多种。
优选地，以质量百分比计，原料中所述氨基醇含量为15‐20%。原料中所述胺含量为5‐8%。原料中所述苯甲酸钠含量为3‐5%。
一种复合钢筋阻锈剂的制备方法：将按质量比例称取的氨基醇、胺、苯甲酸钠依次加入水中搅拌均匀即可。
与现有技术相比，本发明具有如下优点：
本发明的复合钢筋阻锈剂可有效防止混凝土中钢筋的锈蚀，而且对混凝土性能无不良影响，可广泛应用于氯盐环境下的混凝土结构。
具体实施方式
下面结合实施例，对本发明作进一步地详细说明，但本发明的实施方式不限于此。
实施例1
称取乙醇胺10kg，二环己胺10kg，苯甲酸钠10kg，上述原料依次加入到70kg水中，搅拌均匀即可。
实施例2
称取N‐甲基乙醇胺20kg，乙二胺5kg，苯甲酸钠1kg，上述原料依次加入到74kg水中，搅拌均匀即可。
实施例3
称取N‐甲基乙醇胺10kg，N，N‐二羟乙基乙二胺5kg，甲基胺2kg，苯甲酸钠5kg，上述原料依次加入到78kg水中，搅拌均匀即可。
实施例4
称取N，N‐二羟乙基乙二胺5kg，三异丙醇胺5kg，二甲胺3kg，乙二胺3kg，苯甲酸钠4kg，上述原料依次加入到80kg水中，搅拌均匀即可。
实施例5
称取N‐（2‐羟乙基）乙二胺2kg，N，N‐二羟乙基乙二胺8kg，N，N‐二乙基乙醇胺5kg，二甲胺2kg，苯胺1kg，苯甲胺2kg，苯甲酸钠5kg，上述原料依次加入到75kg水中，搅拌均匀即可。
在同样组成的混凝土中，分别掺加实施例1‐5制备的复合钢筋阻锈剂，并以亚硝酸钠和不掺钢筋阻锈剂的混凝土为对比，钢筋阻锈剂掺量为胶凝材料量的3%。表1中，胶凝材料组成为50%的硅酸盐水泥、30%的矿渣微粉和20%的粉煤灰。表1的砂为河砂，二区中砂。表1中石子为粒径5‐20mm连续级配碎石。亚硝酸钠为粉剂，化学纯。水剂的钢筋阻锈剂等质量取代水。减水剂为聚羧酸减水剂，固含量20%。
混凝土配合比见表1，表1中，配合比kg/m3是指每方混凝土中的原材料用量。按GB/T50080‐2002测定的混凝土工作性能和按GB/T50081‐2002测定的混凝土强度，见表2。
表1混凝土配合比
Figure BDA00003464786700031
表2混凝土工作性能和强度
由表2可见，掺加本发明3%的复合钢筋阻锈剂，混凝土初始坍落度以及1h后坍落度均较对比样0好，且坍落度损失较小，本发明的复合钢筋阻锈剂对混凝土工作性能无不良影响。掺加本发明3%的复合钢筋阻锈剂，混凝土强度与对比样0基本相同，本发明的复合钢筋阻锈剂对混凝土强度无不良影响。
将预先埋置钢筋且掺加胶凝材料质量3%NaCl的混凝土试件在露天环境下放置2年后，参照ASTM C876‐2009进行半电池电位检测，并据此评估钢筋阻锈剂性能，见表3。
表3钢筋阻锈剂的阻锈性能
Figure BDA00003464786700042
由表3可见，掺加本发明3%复合钢筋阻锈剂或亚硝酸钠阻锈剂后，阻锈效果好，且均明显好于不掺钢筋阻锈剂的样品0，5种复合钢筋阻锈剂均有良好的阻锈效果。
上述实施例为本发明部分的实施方式，但本发明的实施方式并不受所述实施例的限制，其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均应为等效的置换方式，都包含在本发明的保护范围之内。

Claims (5)

1.一种复合钢筋阻锈剂，其特征在于，以原料的质量百分比计，由如下组份组成：
氨基醇：10～25%
胺：2～10%
苯甲酸钠：1～10%
余量为水；
所述的氨基醇为乙醇胺、二乙醇胺、三乙醇胺、N‐甲基乙醇胺、N，N‐二甲基乙醇胺、N‐乙基乙醇胺、N，N‐二乙基乙醇胺、三异丙醇胺、N‐（2‐羟乙基）乙二胺和N，N‐二羟乙基乙二胺中的一种或多种；
所述的胺为甲基胺、二甲胺、乙二胺、苯胺、苯甲胺和二环己胺中的一种或多种。
2.根据权利要求1所述的复合钢筋阻锈剂，其特征在于，以质量百分比计，原料中所述氨基醇含量为15‐20%。
3.根据权利要求1所述的复合钢筋阻锈剂，其特征在于，以质量百分比计，原料中所述胺含量为5‐8%。
4.根据权利要求1所述的复合钢筋阻锈剂，其特征在于，以质量百分比计，原料中所述苯甲酸钠3‐5%。
5.权利要求1‐4所述的复合钢筋阻锈剂的制备方法，其特征在于，将按质量比例称取的氨基醇、胺、苯甲酸钠依次加入水中搅拌均匀。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104402285A (zh) * 2014-10-27 2015-03-11 李铭梁 一种复合型钢筋混凝土阻锈剂
CN104529218A (zh) * 2014-11-24 2015-04-22 江苏苏博特新材料股份有限公司 一种多功能有机阻锈剂及其制备方法
CN109811346A (zh) * 2019-01-11 2019-05-28 东南大学 一种气相阻锈剂及其制备方法和在建筑钢筋腐蚀防护方面的应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102153312A (zh) * 2011-05-13 2011-08-17 河北铁园科技发展有限公司 混凝土阻锈剂
CN103172290A (zh) * 2013-02-25 2013-06-26 洛阳理工学院 一种环保型钢筋阻锈剂

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102153312A (zh) * 2011-05-13 2011-08-17 河北铁园科技发展有限公司 混凝土阻锈剂
CN103172290A (zh) * 2013-02-25 2013-06-26 洛阳理工学院 一种环保型钢筋阻锈剂

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104402285A (zh) * 2014-10-27 2015-03-11 李铭梁 一种复合型钢筋混凝土阻锈剂
CN104402285B (zh) * 2014-10-27 2017-02-08 青岛文创科技有限公司 一种复合型钢筋混凝土阻锈剂
CN104529218A (zh) * 2014-11-24 2015-04-22 江苏苏博特新材料股份有限公司 一种多功能有机阻锈剂及其制备方法
CN109811346A (zh) * 2019-01-11 2019-05-28 东南大学 一种气相阻锈剂及其制备方法和在建筑钢筋腐蚀防护方面的应用

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Application publication date: 20131023