WO2014032203A1 - 抗碳化外墙保护剂及其制备方法 - Google Patents
抗碳化外墙保护剂及其制备方法 Download PDFInfo
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- WO2014032203A1 WO2014032203A1 PCT/CN2012/001148 CN2012001148W WO2014032203A1 WO 2014032203 A1 WO2014032203 A1 WO 2014032203A1 CN 2012001148 W CN2012001148 W CN 2012001148W WO 2014032203 A1 WO2014032203 A1 WO 2014032203A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
Definitions
- the invention relates to an external wall protection agent, in particular to an anti-carbonization external wall protection agent and a preparation method thereof.
- the object of the present invention is to provide an anti-carbonization external wall protection agent and a preparation method thereof, which can effectively protect the external wall, the roof and the ground of the building, and solve the problem that the building in the prior art is exposed to the atmosphere and the rain water environment for a long time. Caused by water seepage, carbonization and powdering of the substrate, loosening and peeling defects.
- An anti-carbonization exterior wall protector comprising:
- the mixture of the organosilicon germanium and the siloxane nanomolecule has a nanometer molecular particle diameter of less than 2 nm
- the mixture includes silicon germanium and siloxane
- the silane is a nano small molecule silane
- the siloxane includes different sizes.
- the siloxane molecule, the number of repeating units in the siloxane molecules is 20-60;
- the terpene hydrocarbon is a C5-C16 paraffin or cycloalkane, and the olefin is a C5-C18 olefin or ring Olefins.
- the silicone silane and siloxane nano-molecular mixture may be commercially available coating silicone or the like, ⁇
- the hydrocarbon and olefin mixture may be of commercial grade, and the dearomatization solvent may be various types of dearomatization solvents commercially available.
- the macromolecular siloxane comprises a silicone silicone body.
- the organic group may be a methyl group, a longer fluorenyl group, a fluoroalkyl group, a phenyl group, a vinyl group, and/or some other group.
- a method for preparing an anti-carbonization exterior wall protecting agent comprises mixing 10-20% of a mixture of silicone silicon germanium and silicon silicate nano molecules, 15-25% mixture of alkane and olefin and 55-65% dearomatization solvent for high speed Stir until uniform, and the resulting mixture is an anti-carbonization exterior wall protectant.
- the silicone nano-molecular permeable substrate in the protective agent of the present invention forms a waterproof layer, has strong binding force with the substrate, and can strengthen the surface strength of the external wall brick surface;
- the protective agent of the invention can make the exterior wall of the building resistant to ultraviolet rays, high temperature, freeze-thaw resistance, alkali resistance and acid rain resistance, and has gas permeability;
- the protective agent of the invention can effectively prevent water seepage in the building and protect the external wall from the chalking, loosening and mildew caused by carbonization;
- the protective agent of the invention can penetrate the substrate 2-4 mm, and the appearance is transparent and has no coating feeling; fifth, the protective agent of the invention can be uniformly coated by spraying, coating, immersing, etc., or directly coating the surface of the outer wall. Great convenience for the repair and protection of buildings;
- the protective agent of the present invention comprises high-quality silicone nano materials and has stable product characteristics, and is an ideal green waterproof and weatherproof protective agent.
- the anti-carbonization exterior wall protectant of the present embodiment comprises: 15% of a commercially available silicone silicon germanium and a siloxane nanomolecular mixture, 25% alkane and olefin mixture, 60% dearomatization solvent, wherein the organosilane and The nanometer molecular particle diameter of the siloxane nano-molecular mixture is less than 2 nm, and the mixture includes silane and siloxane, the silicon germanium is a nano-small molecular silicon germanium, and the siloxane includes silicon oxysulfide molecules of different sizes, The number of repeating units in the siloxane molecules is 20-60; the silicone siloxane body is included in the large siloxane molecules in the mixture of the silicone silicon germanium and the siloxane nano molecules.
- the alkane is a C5-C16 chain olefin
- the olefin is a C5-C18 olefin.
- the anti-carbonization outer wall protecting agent of the present embodiment is prepared by mixing 15% of a mixture of silicone silicon germanium and a siloxane nano-molecular mixture, 25% of an alkane and an olefin mixture and a 60% dearomatizing solvent, and stirring at a high speed to obtain a uniformity.
- the mixture is an anti-carbonization exterior wall protectant.
- the obtained anti-carbonization exterior wall protectant was tested and characterized, including the appearance change, volume change, mass loss, strength change, water absorption rate and carbonization depth of the sprayed concrete under simulated acid rain.
- simulated acid rain is a solution having a pH of 4 and a ratio of nitrate to sulfate of 1:9; the test method is: immersing the concrete sprayed with the protective agent of the present embodiment in simulated acid rain, and taking it out after 6 days, naturally After one day of drying, the sample was corroded by acid rain for 7 days, and the process was repeated, that is, the soaking-drying-soaking process was repeated.
- the pH is measured weekly and adjusted to the original acidity.
- the effect on quality is shown in Table 2 below.
- the concrete sprayed with the protective agent of the present embodiment has a lower mass loss rate after the acid rain cycle dipping than the concrete to which the protective agent of the present embodiment is not sprayed.
- the effect on volume is shown in Table 3 below.
- the concrete sprayed with the protective agent of the present embodiment has a volume change rate lower than that of the concrete to which the protective agent of the present embodiment is not sprayed after the acid rain cycle is immersed.
- the effects on carbonation resistance are shown in Table 5 below.
- the carbonation resistance is characterized by the depth of carbonization.
- the depth of carbonation is essentially the depth of H penetration in acid rain, reflecting to some extent the degree of erosion of concrete by acid rain. Taking the immersion for 90 days as an example, the carbonization depth of the concrete sprayed with the protective agent of the present embodiment is significantly smaller than that of the concrete not coated with the protective agent of the present embodiment after the acid rain cycle immersion.
- the concrete strength under the acid rain erosion condition is reduced to 85%, that is, the number of years required to reach the service life, as shown in Table 6 below.
- the anti-carbonization exterior wall protecting agent of the invention can significantly improve the water seepage phenomenon of the outer wall, and the resulting strength drop and the like, and the water absorption rate is obviously reduced, and the carbonization resistance is improved.
- the anti-carbonization exterior wall protectant of the present embodiment comprises: 10% of a commercially available organosilicon silane and a siloxane nano-molecular mixture, 25% a mixture of a hydrazine and an olefin, and a 65% dearomatization solvent, wherein the organosilane and The nano-molecular particle diameter of the siloxane nano-molecular mixture is less than 2 nm, and the mixture includes silicon germanium and silicon oxysilane, the silane is a nano-small molecular silane, and the siloxane comprises siloxane molecules of different sizes, The number of repeating units in the siloxane molecule is from 20 to 60; the silicone siloxane body is included in the large siloxane group in the mixture of the organosilicon silane and the siloxane nanomolecule.
- the alkane is a C5-C16 cyclic anthracene
- the olefin is a C5-C18 cycl
- the anti-carbonization outer wall protecting agent of the present embodiment is prepared by mixing 10% of a mixture of organosilicon silane and siloxane nano-molecule, 25% of an alkane and an olefin mixture and a 65% dearomatizing solvent, and stirring at a high speed to obtain a mixture. It is an anti-carbonization exterior wall protector.
- the anti-carbonization exterior wall protectant of the present embodiment comprises: 20% of a commercially available organosilicon silane and siloxane nano-molecular mixture, 15% alkane and olefin mixture, 65% dearomatization solvent, wherein the silicone silicon germanium and The nano-molecular particle diameter of the siloxane nano-molecular mixture is less than 2 nm, and the mixture includes silicon germanium and silicon oxynitride, and the silicon germanium is a nano-small molecular silicon germanium, and the siloxane includes siloxane molecules of different sizes.
- the number of repeating units in the siloxane molecules is from 20 to 60; the silicone siloxane body is included in the large siloxane molecules in the mixture of the organosilicon silane and the siloxane nanomolecule.
- the alkane is a C5-C16 chain olefin and a cycloalkane, and the olefin is a C5-C18 alkene and a cyclic olefin.
- the anti-carbonization outer wall protecting agent of the present embodiment is prepared by mixing 20% of a mixture of silicone silicon germanium and siloxane nano-molecule, 15% mixture of alkane and olefin and 65% dearomatizing solvent, and stirring at a high speed to obtain uniformity.
- the mixture is an anti-carbonization exterior wall protectant.
- the anti-carbonization exterior wall protecting agent of the present embodiment comprises: 20% of a commercially available organosilicon silane and a siloxane nano-molecular mixture, 25% alkane and olefin mixture, 55% dearomatization solvent, wherein the silicone silicon germanium and The siloxane nano-molecular mixture has a nano-molecular particle diameter of less than 2 nm, and the mixture includes silane and siloxane, the silicon germanium is a nano-small molecular silicon germanium, and the silicon siloxane includes silicon oxysulfide molecules of different sizes, The number of repeating units in the siloxane molecules is 20-60; the silicone siloxane body is included in the large siloxane molecules in the mixture of the silicone silicon germanium and the siloxane nano molecules.
- the alkane is a C5-C16 chain hydrazine or a cycloalkane
- the olefin is a C5-C18 alkene or a cycl
- the anti-carbonization outer wall protectant of the present embodiment is prepared by mixing 20% of a mixture of silicone silicon germanium and a siloxane nano-molecular mixture, 25% of a mixture of a terpene hydrocarbon and an olefin, and a 55% dearomatization solvent, and stirring at a high speed to the same.
- the resulting mixture is an anti-carbonization exterior wall protectant.
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Abstract
一种外墙保护剂，包括10-20%的有机硅硅烷和硅氧烷纳米分子混合物，15-25%烷烃和烯烃混合物，55-65%脱芳溶剂。该外墙保护剂解决了建筑物外墙渗水、碳化、粉化及剥落的问题。
Description
抗碳化外墙保护剂及其制备方法
技术领域
本发明涉及一种外墙保护剂， 特别涉及一种抗碳化外墙保护剂及其制备 方法。
背景技术
建筑物， 尤其是其外墙、 屋面及地面， 因长期暴露于大气环境中及受雨 水影响， 基材表面易出现渗水霉变以及碳化， 而导致基材粉化， 疏松剥落。 影响建筑物寿命。
发明内容
本发明的目的是提供一种抗碳化外墙保护剂及其制备方法， 以专业对建 筑外墙、 屋面和地面实施有效保护， 解决现有技术中建筑物由于长期暴露在 大气及雨水环境中而导致的渗水、 碳化及基材粉化， 疏松剥落的缺陷。
本发明的技术方案如下：
一种抗碳化外墙保护剂， 包括：
10-20%的有机硅硅垸和硅氧烷纳米分子混合物，
15-25%垸烃和烯烃混合物，
55-65%脱芳溶剂，
其中所述有机硅硅垸和硅氧烷纳米分子混合物的纳米分子粒径小于 2nm， 该混合物中包括硅垸和硅氧烷， 所述硅烷为纳米小分子硅烷， 所述硅氧垸包 括大小不同的硅氧垸分子， 该些硅氧烷分子中重复单元的数量为 20-60个； 所述垸烃为 C5-C16的链烷烃或环烷烃， 所述烯烃为 C5-C18的链烯烃或 环烯烃。
所述有机硅硅烷和硅氧烷纳米分子混合物可为市售的涂料有机硅等， 垸
烃和烯烃混合物可为市售工业级， 脱芳溶剂可为市售各种类型的脱芳溶剂。 较佳地， 所述有机硅纳米分子混合物中， 大分子硅氧烷包括有机硅硅酮 体。 在该有机硅硅酮体中， 有机基团可以是甲基、 较长的垸基、 氟代烷基、 苯基、 乙烯基和 /或一些其他基团。
一种抗碳化外墙保护剂的制备方法， 包括将 10-20%的有机硅硅垸和硅氧 垸纳米分子混合物， 15-25%烷烃和烯烃混合物和 55-65%脱芳溶剂混合进行高 速搅拌至均匀， 所得混合物即为抗碳化外墙保护剂。
与现有技术相比， 本发明的有益效果如下：
第一， 本发明保护剂中的有机硅纳米分子可渗透基材形成防水层， 与基 材结合力强并能加强外墙砖面的表面强度；
第二， 本发明保护剂可使建筑外墙抗紫外线及耐高温抗冻融、 耐碱、 耐 酸雨能力优异， 且具有透气性；
第三， 本发明保护剂可有效防止建筑渗水， 保护外墙砖面因碳化造成的 粉化、 疏松剥落、 霉变；
第四， 本发明保护剂， 可渗透基材 2-4mm， 外观透明无涂层感； 第五， 本发明保护剂可以喷、 涂、 浸泡等方式均匀涂布， 或直接涂刷外 墙表面， 对建筑物的修缮和保护提供极大的方便；
第六， 本发明保护剂包括优质的有机硅纳米材料， 产品特性稳定， 是一 种理想的绿色环保防水耐候性保护剂。
当然， 实施本发明的任一产品并不一定需要同时达到以上所述的所有优 点。
具体实施方式
下面结合具体实施例， 进一步阐述本发明。 应该理解， 这些实施例仅用 于说明本发明， 而不用于限定本发明的保护范围。 在实际应用中技术人员根 据本发明做出的改进和调整， 仍属于本发明的保护范围。
实施例 1
本实施例的抗碳化外墙保护剂，包括： 15%的市售有机硅硅垸和硅氧垸纳 米分子混合物， 25%烷烃和烯烃混合物， 60%脱芳溶剂， 其中所述有机硅硅烷 和硅氧烷纳米分子混合物的纳米分子粒径小于 2nm， 该混合物中包括硅烷和 硅氧垸， 所述硅垸为纳米小分子硅垸， 所述硅氧烷包括大小不同的硅氧垸分 子，该些硅氧垸分子中重复单元的数量为 20-60个；该有机硅硅垸和硅氧烷纳 米分子混合物中的大硅氧烷分子中包括有机硅硅酮体。所述烷烃为 C5-C16的 链垸烃， 所述烯烃为 C5-C18的链烯烃。
本实施例抗碳化外墙保护剂的制备方法为， 将 15%的有机硅硅垸和硅氧 烷纳米分子混合物， 25%烷烃和烯烃混合物和 60%脱芳溶剂混合进行高速搅 拌至均匀， 所得混合物即为抗碳化外墙保护剂。
对该所得抗碳化外墙保护剂进行了性能测试和表征， 包括其喷涂的混凝 土在模拟酸雨环境下的外观变化、 体积变化、 质量损失、 强度变化、 吸水率 和碳化深度。
测试条件为： 模拟酸雨为 pH值为 4， 硝酸根与硫酸根的比例为 1:9的溶 液； 测试方法为： 将本实施例保护剂喷涂的混凝土浸泡于模拟酸雨中， 6天后 取出， 自然干燥一天， 试样受酸雨腐蚀的周期为 7天， 反复进行此过程， 即 浸泡-干燥-浸泡过程反复进行。 为保持模拟酸雨 pH值不变， 每周测定其 pH 值并调其至原酸度。 循环浸渍 28天、 90天、 140天后取出试样， 用清水冲洗 其表面， 然后放入标准养护室中养护 2天， 并测定其体积变化、 质量变化与 强度变化等。 同时也对未喷涂本实施例保护剂的混凝土进行了测试以对比。
实验发现， 本实施例保护剂喷涂的混凝土在模拟酸雨的不同浸渍期内， 外观变化很小， 而未喷涂保护剂的混凝土早期外观变化不明显， 但随着浸渍 时间的增长， 试样表面呈酥松状态， 气孔增多， 表面有轻微剥落。
对于抗压强度的影响见下表 1。未喷涂本实施例保护剂的混凝土在酸雨循 环浸渍后， 其抗压强度随浸渍时间的增长明显下降， 而喷涂过保护剂的混凝 土抗压强度的下降明显小于未喷涂保护剂混凝土。
表 1
对于质量的影响见下表 2。喷涂过本实施例保护剂的混凝土在酸雨循环浸 渍后， 其质量损失率低于未喷涂本实施例保护剂的混凝土。
表 2
对于体积的影响见下表 3。喷涂过本实施例保护剂的混凝土在酸雨循环浸 渍后， 其体积变化率低于未喷涂本实施例保护剂的混凝土。
表 3
对于吸水率的影响见下表 4。 以浸渍 90天为例， 喷涂过本实施例保护剂 的混凝土在酸雨循环浸渍后， 其吸水率明显小于未喷涂本实施例保护剂的混 凝土。
表 4
对于抗碳化性能的影响见下表 5。抗碳化性能以碳化深度表征，碳化深度 实质上是酸雨中 H渗透深度，在一定程度上反映出酸雨对混凝土的侵蚀程度。 以浸渍 90天为例， 喷涂过本实施例保护剂的混凝土的碳化深度在酸雨循环浸 渍后， 其碳化深度明显小于未喷涂本实施例保护剂的混凝土。
此外， 还根据混凝土强度拟合曲线， 计算出在酸雨侵蚀条件下， 混凝土 强度下降到 85%， 即达到其服役寿命时所需的年数， 见下表 6。
表 6
由上表 6可见， 喷涂本实施例保护剂可显著延长混凝土的服役寿命。 综上， 本发明的抗碳化外墙保护剂可显著改善外墙的渗水现象， 以及由 此引起的强度下降等问题， 明显降低了其吸水率， 提高了抗碳化性能。 可明 显改善建筑物由于长期暴露在大气及雨水环境中而导致的渗水、 碳化及基材
粉化， 疏松剥落的问题。
实施例 2
本实施例的抗碳化外墙保护剂，包括： 10%的市售有机硅硅烷和硅氧烷纳 米分子混合物， 25%垸烃和烯烃混合物， 65%脱芳溶剂， 其中所述有机硅硅烷 和硅氧垸纳米分子混合物的纳米分子粒径小于 2nm， 该混合物中包括硅垸和 硅氧垸， 所述硅烷为纳米小分子硅烷， 所述硅氧烷包括大小不同的硅氧烷分 子，该些硅氧烷分子中重复单元的数量为 20-60个；该有机硅硅烷和硅氧烷纳 米分子混合物中的大硅氧垸分子中包括有机硅硅酮体。所述烷烃为 C5-C16的 环垸烃， 所述烯烃为 C5-C18的环烯烃。
本实施例抗碳化外墙保护剂的制备方法为， 将 10%的有机硅硅烷和硅氧 垸纳米分子混合物， 25%烷烃和烯烃混合物和 65%脱芳溶剂混合进行高速搅 拌至均匀， 所得混合物即为抗碳化外墙保护剂。
实施例 3
本实施例的抗碳化外墙保护剂，包括： 20%的市售有机硅硅烷和硅氧垸纳 米分子混合物， 15%烷烃和烯烃混合物， 65%脱芳溶剂， 其中所述有机硅硅垸 和硅氧垸纳米分子混合物的纳米分子粒径小于 2nm， 该混合物中包括硅垸和 硅氧垸， 所述硅垸为纳米小分子硅垸， 所述硅氧烷包括大小不同的硅氧烷分 子，该些硅氧烷分子中重复单元的数量为 20-60个；该有机硅硅烷和硅氧垸纳 米分子混合物中的大硅氧烷分子中包括有机硅硅酮体。所述烷烃为 C5-C16的 链垸烃和环烷烃， 所述烯烃为 C5-C18的链烯烃和环烯烃。
本实施例抗碳化外墙保护剂的制备方法为， 将 20%的有机硅硅垸和硅氧 垸纳米分子混合物， 15%烷烃和烯烃混合物和 65%脱芳溶剂混合进行高速搅 拌至均匀， 所得混合物即为抗碳化外墙保护剂。
实施例 4
本实施例的抗碳化外墙保护剂，包括： 20%的市售有机硅硅烷和硅氧烷纳 米分子混合物， 25%烷烃和烯烃混合物， 55%脱芳溶剂， 其中所述有机硅硅垸 和硅氧烷纳米分子混合物的纳米分子粒径小于 2nm， 该混合物中包括硅烷和 硅氧垸， 所述硅垸为纳米小分子硅垸， 所述硅氧垸包括大小不同的硅氧垸分 子，该些硅氧垸分子中重复单元的数量为 20-60个；该有机硅硅垸和硅氧烷纳 米分子混合物中的大硅氧烷分子中包括有机硅硅酮体。所述烷烃为 C5-C16的 链垸烃或环烷烃， 所述烯烃为 C5-C18的链烯烃或环烯烃。
本实施例抗碳化外墙保护剂的制备方法为， 将 20%的有机硅硅垸和硅氧 烷纳米分子混合物， 25%垸烃和烯烃混合物和 55%脱芳溶剂混合进行高速搅 拌至均勾， 所得混合物即为抗碳化外墙保护剂。
以上描述的为本发明的较佳实施例， 但本发明并不仅限于上述实施例， 所有包括在本发明的权利要求内的实施例和实施方式， 均在本发明的保护范 围内。
Claims
1. 一种抗碳化外墙保护剂， 其特征在于， 包括：
10-20%的有机硅硅烷和硅氧烷纳米分子混合物，
15-25%垸烃和烯烃混合物，
55-65%脱芳溶剂，
其中所述有机硅硅垸和硅氧烷纳米分子混合物的纳米分子粒径小于 2nm， 该混合物中包括硅烷和硅氧垸， 所述硅垸为纳米小分子硅烷， 所述硅氧垸包 括大小不同的硅氧烷分子， 该些硅氧烷分子中重复单元的数量为 20-60个； 所述垸烃为 C5-C16的链垸烃或环烷烃， 所述烯烃为 C5-C18的链烯烃或 环烯烃。
2. 如权利要求 1所述的抗碳化外墙保护剂， 其特征在于， 所述有机硅纳米分 子混合物中， 大分子硅氧烷包括有机硅硅酮体。
3. 一种抗碳化外墙保护剂的制备方法， 其特征在于， 将 10-20%的有机硅硅烷 和硅氧垸纳米分子混合物， 15-25%浣烃和烯烃混合物和 55-65%脱芳溶剂混合 进行高速搅拌至均匀， 所得混合物即为抗碳化外墙保护剂。
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