CN101967257A - Pure acrylic emulsion modified by inorganic nanoparticles and preparation method thereof - Google Patents
Pure acrylic emulsion modified by inorganic nanoparticles and preparation method thereof Download PDFInfo
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- 239000000839 emulsion Substances 0.000 title claims abstract description 41
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 16
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 15
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 15
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005642 Oleic acid Substances 0.000 claims abstract description 15
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 15
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 15
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 13
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims abstract description 13
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 239000000178 monomer Substances 0.000 claims abstract description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 8
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 18
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 9
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 9
- 239000003607 modifier Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000012874 anionic emulsifier Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000012875 nonionic emulsifier Substances 0.000 claims description 4
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000007822 coupling agent Substances 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 230000032683 aging Effects 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002114 nanocomposite Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Inorganic Compounds Of Heavy Metals (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
本发明公开了一种无机纳米粒子改性纯丙乳液及其制备方法,该无机纳米粒子改性纯丙乳液按质量百分含量由组分:去离子水为45~58%,甲基丙烯酸甲酯为20~30%,丙烯酸丁酯为15~25%,甲基丙烯酸为0.8~1.2%,复合乳化剂为2.6~3.4%,碳酸氢钠为0.4~0.6%,过硫酸钾为0.4~0.6%,纳米TiO2为0.23~0.66%,氨水为0.5~1.0%,硅烷偶联剂和油酸混合剂为0.04~0.17%组成。制备时先将纳米TiO2进行改性处理,然后通过将单体和改性后的纳米TiO2混合、搅拌、分散等工序制得。本发明的无机纳米粒子改性纯丙乳液具有耐老化性、耐洗刷性、耐水性、耐碱性的特点,制备工艺简单、价格低廉、无环境污染。The invention discloses an inorganic nanoparticle modified pure acrylic emulsion and a preparation method thereof. The inorganic nanoparticle modified pure acrylic emulsion consists of components in terms of mass percentage: 45% to 58% of deionized water, methyl methacrylate 20-30% ester, 15-25% butyl acrylate, 0.8-1.2% methacrylic acid, 2.6-3.4% compound emulsifier, 0.4-0.6% sodium bicarbonate, 0.4-0.6 potassium persulfate %, nano TiO 2 is 0.23-0.66%, ammonia water is 0.5-1.0%, silane coupling agent and oleic acid mixture are 0.04-0.17%. During preparation, the nano- TiO2 is first modified, and then the monomer and the modified nano- TiO2 are mixed, stirred, dispersed and other processes are prepared. The inorganic nano particle modified pure acrylic emulsion of the present invention has the characteristics of aging resistance, scrub resistance, water resistance and alkali resistance, simple preparation process, low price and no environmental pollution.
Description
技术领域technical field
本发明属于建筑涂料技术领域,涉及一种无机纳米粒子改性纯丙乳液及其制备方法。The invention belongs to the technical field of architectural coatings, and relates to an inorganic nano particle modified pure acrylic emulsion and a preparation method thereof.
背景技术Background technique
纯丙乳液其漆膜具有良好的透明性、附着力、耐候性、能常温自干等特点,因而它在涂料工业中尤其在装饰漆方面占有重要地位。但由于其涂膜硬度低,“热粘冷脆”,影响了纯丙乳液的应用。近几年来,由于纳米粒子具有优秀的物理及化学性能,得到广泛的应用研究。无机纳米复合材料更是由于纳米尺寸效应,表面效应以及纳米粒子与基体界面间有强的相互作用而受到广泛的关注。将无机纳米粒子加入到纯丙乳液体系中,可以提高乳液的耐洗刷性、耐候性等性能并赋予乳液抗菌、自洁的特殊功能。但是未经改性的无机纳米粒子粒径小,比表面积和比表面能都很大,表面原子严重配位不足,很容易吸附而发生团聚,在非极性聚合物中表现出低分散相容性,降低了纳米复合物的机械性能。为解决出现的系列问题,采用硅烷偶联剂和油酸混合改性剂对纳米TiO2进行改性,从而使改性后的纳米粒子具有良好的疏水性,无机纳米粒子与单体之间更容易形成化学键。因而提高了乳液的耐老化性、耐洗刷性、耐水性、耐碱性等性能,本发明创新点是采用硅烷偶联剂和油酸混合改性剂改性无机纳米粒子,进而制备了性能优异新型无机纳米粒子改性纯丙乳液,应用在建筑涂料技术领域。The paint film of pure acrylic emulsion has the characteristics of good transparency, adhesion, weather resistance, and self-drying at room temperature, so it occupies an important position in the paint industry, especially in decorative paints. However, due to the low hardness of its coating film, "hot stickiness and cold brittleness", it affects the application of pure acrylic emulsion. In recent years, due to the excellent physical and chemical properties of nanoparticles, they have been widely used in research. Inorganic nanocomposites have attracted extensive attention due to the nano-size effect, surface effect and strong interaction between nanoparticles and the matrix interface. Adding inorganic nanoparticles into the pure acrylic emulsion system can improve the scrub resistance and weather resistance of the emulsion and endow the emulsion with special functions of antibacterial and self-cleaning. However, the particle size of unmodified inorganic nanoparticles is small, the specific surface area and specific surface energy are large, the surface atoms are seriously insufficiently coordinated, and it is easy to adsorb and agglomerate, showing low dispersion and compatibility in non-polar polymers. properties, reducing the mechanical properties of the nanocomposites. In order to solve the series of problems, the nano- TiO2 was modified with a mixed modifier of silane coupling agent and oleic acid, so that the modified nanoparticles had good hydrophobicity, and the relationship between inorganic nanoparticles and monomers was more stable. Easy to form chemical bonds. Therefore, the aging resistance, scrub resistance, water resistance, alkali resistance and other properties of the emulsion are improved. The innovation of the present invention is to use a silane coupling agent and an oleic acid mixed modifier to modify the inorganic nanoparticles, and then prepare the excellent performance A new type of inorganic nano-particle modified pure acrylic emulsion is used in the technical field of architectural coatings.
发明内容Contents of the invention
本发明的目的是针对上述的纯丙乳液存在的问题,为了克服其不足,通过采用硅烷偶联剂和油酸混合改性剂改性无机纳米粒子,提供一种新型无机纳米粒子改性纯丙乳液及其制备方法。The purpose of the present invention is to solve the problems existing in the above-mentioned pure acrylic emulsion. In order to overcome its shortcomings, a novel inorganic nanoparticle modified pure acrylic emulsion is provided by using a silane coupling agent and an oleic acid mixed modifier to modify the inorganic nanoparticles. Emulsion and method for its preparation.
为实现上述目的,本发明采取的技术方案是:一种无机纳米粒子改性纯丙乳液,各组分和质量百分含量分别是:去离子水为45~58%,甲基丙烯酸甲酯为20~30%,丙烯酸丁酯为15~25%,甲基丙烯酸为0.8~1.2%,复合乳化剂为2.6~3.4%,碳酸氢钠为0.4~0.6%,过硫酸钾为0.4~0.6%,纳米TiO2为0.23~0.66%,氨水为0.5~1.0%,硅烷偶联剂和油酸混合剂用量为0.04~0.17%。In order to achieve the above object, the technical solution adopted by the present invention is: a pure acrylic emulsion modified by inorganic nanoparticles, each component and mass percentage are respectively: deionized water is 45% to 58%, methyl methacrylate is 20-30%, butyl acrylate 15-25%, methacrylic acid 0.8-1.2%, compound emulsifier 2.6-3.4%, sodium bicarbonate 0.4-0.6%, potassium persulfate 0.4-0.6%, The amount of nano TiO2 is 0.23-0.66%, the amount of ammonia water is 0.5-1.0%, and the amount of silane coupling agent and oleic acid mixture is 0.04-0.17%.
上所述复合乳化剂为非离子型乳化剂和阴离子型乳化剂混合物,根据实验确定复合乳化剂配比为非离子型乳化剂∶阴离子型乳化剂为3∶1;The composite emulsifier mentioned above is a mixture of nonionic emulsifier and anionic emulsifier, and according to experiments, the ratio of composite emulsifier is determined to be nonionic emulsifier: anionic emulsifier is 3:1;
上所述硅烷偶联剂和油酸混合剂的质量比为5∶1。The mass ratio of the above-mentioned silane coupling agent to the oleic acid mixture is 5:1.
为实现上述目的,本发明采取的另一个技术方案是:一种无机纳米粒子改性纯丙乳液的制备方法依顺序包括如下步骤:In order to achieve the above object, another technical solution adopted by the present invention is: a preparation method of inorganic nanoparticle modified pure acrylic emulsion comprises the following steps in sequence:
(1)纳米TiO2的改性处理方法:将纳米TiO2、无水乙醇置于烧杯中超声分散30min,再加入偶联剂KH570和油酸混合改性剂,继续超声分散1h。结束后将分散液置于250mL三口烧瓶中水浴加热至80℃,冷凝回流4h。反应结束后,烘干研磨备用;(1) Nano-TiO 2 modification treatment method: put nano-TiO 2 and absolute ethanol in a beaker for ultrasonic dispersion for 30 minutes, then add coupling agent KH570 and oleic acid mixed modifier, and continue ultrasonic dispersion for 1 hour. After the end, the dispersion was placed in a 250mL three-necked flask, heated to 80°C in a water bath, condensed and refluxed for 4 hours. After the reaction is over, dry and grind for subsequent use;
(2)将单体和改性后纳米TiO2混合先磁力搅拌2h,再超声分散2h;(2) Mix the monomer and the modified nano-TiO 2 and stir it magnetically for 2 hours, then ultrasonically disperse it for 2 hours;
(3)将复合乳化剂、去离子水、碳酸氢钠加入烧瓶中搅拌溶解,水浴加热,温度升至50℃时,加入0.1%的过硫酸钾;温度升至82℃时,开始滴加混有纳米TiO2的单体混合液并同时加入剩余0.4%的过硫酸钾,保证在2.5h左右滴加结束并使前者先于后者加完;(3) Add compound emulsifier, deionized water, and sodium bicarbonate into the flask and stir to dissolve, heat in a water bath, and when the temperature rises to 50°C, add 0.1% potassium persulfate; when the temperature rises to 82°C, start to drop the mixed Add the remaining 0.4% potassium persulfate to the monomer mixture with nano-TiO 2 at the same time, ensuring that the addition is completed in about 2.5 hours and the former is completed before the latter;
(4)加料完毕后,保温2h。保温结束冷却至40℃,用氨水调pH至8~9,过筛,即得无机纳米粒子纳米改性纯丙乳液。(4) After the feeding is completed, keep warm for 2 hours. Cool to 40°C at the end of the heat preservation, adjust the pH to 8-9 with ammonia water, and sieve to obtain the pure acrylic emulsion modified by inorganic nanoparticles.
采用上述制备方法,合成了无机纳米粒子改性纯丙乳液,其乳液有以下优点:明显提高了乳液的耐老化性、耐水性、耐碱性。主要原因是,将无机纳米粒子加入到纯丙乳液中,采用硅烷偶联剂和油酸混合改性剂对纳米TiO2进行改性,从而使改性后纳米粒子具有良好的疏水性,使无机纳米粒子在乳液中分散均匀,使无机相与有机相相容性更好,无机纳米粒子与单体之间更容易形成化学键,因而提高了乳液的耐老化性、耐洗刷性、耐水性、耐碱性。工艺简单、价格低廉、无环境污染。所有性能可满足水性无机纳米粒子改性纯丙乳液的技术要求,发展前景很好。Using the above preparation method, the pure acrylic emulsion modified by inorganic nanoparticles is synthesized, and the emulsion has the following advantages: the aging resistance, water resistance and alkali resistance of the emulsion are obviously improved. The main reason is that the inorganic nanoparticles are added to the pure acrylic emulsion, and the nano- TiO2 is modified with a silane coupling agent and an oleic acid mixed modifier, so that the modified nanoparticles have good hydrophobicity and the inorganic The nanoparticles are evenly dispersed in the emulsion, which makes the inorganic phase and the organic phase more compatible, and it is easier to form chemical bonds between the inorganic nanoparticles and the monomer, thus improving the aging resistance, scrub resistance, water resistance, and water resistance of the emulsion. alkaline. The process is simple, the price is low, and there is no environmental pollution. All properties can meet the technical requirements of water-based inorganic nano-particle modified pure acrylic emulsion, and the development prospect is very good.
具体实施方式Detailed ways
结合实例对本发明作进一步的详述。The present invention is described in further detail in conjunction with examples.
实施例1Example 1
一、原料配方:1. Raw material formula:
去离子水 45%;Deionized water 45%;
甲基丙烯酸甲酯 24%;Methyl methacrylate 24%;
丙烯酸丁酯 25%;Butyl acrylate 25%;
甲基丙烯酸 0.8%;Methacrylic acid 0.8%;
复合乳化剂 2.6%;Compound emulsifier 2.6%;
过硫酸钾 0.5%;Potassium persulfate 0.5%;
硅烷偶联剂和油酸混合剂 0.04%Silane coupling agent and oleic acid mixture 0.04%
纳米TiO2 0.66%;Nano TiO 2 0.66%;
碳酸氢钠 0.4%;Sodium bicarbonate 0.4%;
氨水 1.0%。Ammonia 1.0%.
二、制备方法:2. Preparation method:
将纳米TiO2和甲基丙烯酸甲酯、丙烯酸丁酯、甲基丙烯酸单体加入烧杯中激烈搅拌2h,再超声2h。将复合乳化剂、去离子水、碳酸氢钠置于三口烧瓶中搅拌,水浴加热,温度升至50℃时,加入0.1%的过硫酸钾;温度升至82℃时,开始滴加混有纳米TiO2的单体混合液并同时加入剩余0.4%的过硫酸钾,保证在2.5h左右滴加结束并使前者先于后者加完。加料完毕后,保温2h。保温结束后冷却至40℃,用氨水调pH至8~9,过筛,即得无机纳米粒子改性纯丙乳液。纯丙乳液和纳米TiO2改性纯丙乳液性能测试结果对比见下表:Add nano-TiO 2 and methyl methacrylate, butyl acrylate, and methacrylic acid monomers into a beaker and stir vigorously for 2 h, then sonicate for 2 h. Stir the compound emulsifier, deionized water, and sodium bicarbonate in a three-necked flask, and heat it in a water bath. When the temperature rises to 50°C, add 0.1% potassium persulfate; when the temperature rises to 82°C, start adding TiO 2 monomer mixture and add the remaining 0.4% potassium persulfate at the same time, ensure that the dropwise addition ends in about 2.5h and make the former complete before the latter. After feeding, keep warm for 2h. Cool to 40°C after the heat preservation is over, adjust the pH to 8-9 with ammonia water, and sieve to obtain inorganic nanoparticle-modified pure acrylic emulsion. The performance test results of pure acrylic emulsion and nano TiO 2 modified pure acrylic emulsion are compared in the following table:
三、本实施例所得的无机纳米TiO2改性纯丙乳液和纯丙乳液性能对比表:Three, the inorganic nanometer TiO of present embodiment gained Modified pure acrylic emulsion and pure acrylic emulsion performance comparison table:
实施例2Example 2
一、原料配方:1. Raw material formula:
去离子水 58%;Deionized water 58%;
甲基丙烯酸甲酯 20%;Methyl methacrylate 20%;
丙烯酸丁酯 16%;Butyl acrylate 16%;
甲基丙烯酸 1.2%;Methacrylic acid 1.2%;
复合乳化剂 2.9%;Compound emulsifier 2.9%;
过硫酸钾 0.4%;Potassium persulfate 0.4%;
硅烷偶联剂和油酸混合剂 0.17%;Silane coupling agent and oleic acid mixture 0.17%;
纳米TiO2 0.23%;Nano TiO 2 0.23%;
碳酸氢钠 0.6%;Sodium bicarbonate 0.6%;
氨水 0.5%。Ammonia 0.5%.
二、制备方法:2. Preparation method:
制备方法与实施例1相同。The preparation method is the same as in Example 1.
三、本实施例所得的无机纳米TiO2改性纯丙乳液和纯丙乳液性能对比表:Three, the inorganic nanometer TiO of present embodiment gained Modified pure acrylic emulsion and pure acrylic emulsion performance comparison table:
实施例3Example 3
一、原料配方:1. Raw material formula:
去离子水 45%;Deionized water 45%;
甲基丙烯酸甲酯 30%;Methyl methacrylate 30%;
丙烯酸丁酯 18%;Butyl acrylate 18%;
甲基丙烯酸 1.2%;Methacrylic acid 1.2%;
复合乳化剂 3.4%;Compound emulsifier 3.4%;
过硫酸钾 0.6%;Potassium persulfate 0.6%;
硅烷偶联剂和油酸混合剂 0.15%;Silane coupling agent and oleic acid mixture 0.15%;
纳米TiO2 0.55%;Nano TiO 2 0.55%;
碳酸氢钠 0.5%;Sodium bicarbonate 0.5%;
氨水 0.7%。Ammonia 0.7%.
二、制备方法:2. Preparation method:
制备方法与实施例1相同。The preparation method is the same as in Example 1.
三、本实施例所得的无机纳米TiO2改性纯丙乳液和纯丙乳液性能对比表:Three, the inorganic nanometer TiO of present embodiment gained Modified pure acrylic emulsion and pure acrylic emulsion performance comparison table:
实施例4Example 4
一、原料配方:1. Raw material formula:
去离子水 54%;Deionized water 54%;
甲基丙烯酸甲酯 25%;Methyl methacrylate 25%;
丙烯酸丁酯 15%;Butyl acrylate 15%;
甲基丙烯酸 1.0%;Methacrylic acid 1.0%;
复合乳化剂 3.0%;Compound emulsifier 3.0%;
过硫酸钾 0.5%;Potassium persulfate 0.5%;
硅烷偶联剂和油酸混合剂 0.08%;Silane coupling agent and oleic acid mixture 0.08%;
纳米TiO2 0.32%;Nano TiO 2 0.32%;
碳酸氢钠 0.5%;Sodium bicarbonate 0.5%;
氨水 0.6%。Ammonia 0.6%.
二、制备方法:2. Preparation method:
制备方法与实施例1相同。The preparation method is the same as in Example 1.
三、本实施例所得的无机纳米TiO2改性纯丙乳液和纯丙乳液性能对比表:Three, the inorganic nanometer TiO of present embodiment gained Modified pure acrylic emulsion and pure acrylic emulsion performance comparison table:
Claims (4)
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