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Número de publicaciónCN1247628 C
Tipo de publicaciónConcesión
Número de solicitudCN 200310112822
Fecha de publicación29 Mar 2006
Fecha de presentación31 Dic 2003
Fecha de prioridad31 Dic 2003
También publicado comoCN1556120A
Número de publicación200310112822.0, CN 1247628 C, CN 1247628C, CN 200310112822, CN-C-1247628, CN1247628 C, CN1247628C, CN200310112822, CN200310112822.0
Inventores马胜军, 李敏
Solicitante中国化工建设总公司常州涂料化工研究院
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos:  SIPO, Espacenet
Composite nano material modified emulsion and its preparation method
CN 1247628 C
Resumen  traducido del chino
本发明涉及一种复合纳米材料改性的乳液及其制备方法,它是用无机纳米材料改性丙烯酸酯类乳液,无机纳米材料是纳米氧化铝粉体和纳米硅溶胶的复配物,用量为250~2500重量份,纳米氧化铝粉体占纳米硅溶胶固体含量的5~30%;丙烯酸酯类乳液用量为2500重量份,乳液的固体含量为40±5%,上述百分数为重量百分数。 The present invention relates to a composite nanomaterials modified emulsion and its preparation method, which is modified by inorganic nanomaterials acrylate emulsions, inorganic nano-materials, nano-alumina powder and nano-sol complex matter, the amount of 250 to 2500 parts by weight, nano-alumina powder accounts for 5 to 30% nano-silica sol solid content; acrylate latex in an amount of 2500 parts by weight, the solid content of the emulsion was 40 ± 5%, said percentages are weight percentages. 该改性乳液的制备方法,首先按配方比例将纳米氧化铝粉体和纳米硅溶胶混合,再进一步用超声波分散至分散体粒度为100~200nm得到复配物,然后按配方比例对丙烯酸酯类乳液进行改性即可。 The preparation of modified emulsion formulation according to the proportion of the first nano-alumina powder mix and nano-sol, and further dispersed by ultrasonic dispersion particle size of 100 ~ 200nm get complex matter, and then press the recipe ratio of acrylate emulsion can be modified. 乳液的稳定性较单纯用硅溶胶或氧化铝粉体改性的乳液大幅度提高,涂膜耐水性和耐碱性明显改善。 Emulsion stability greatly improved compared with pure silica sol or alumina powder modified emulsion, water resistance and alkali resistance coating significantly improved.
Reclamaciones(5)  traducido del chino
1.一种复合纳米材料改性的乳液,它是用无机纳米材料改性丙烯酸酯类乳液,其特征在于:无机纳米材料是纳米氧化铝粉体和纳米硅溶胶的复配物,用量为250~2500重量份,纳米氧化铝粉体占纳米硅溶胶固体含量的5~30%;丙烯酸酯类乳液用量为2500重量份,乳液的固体含量为40±5%,上述百分数为重量百分数。 A nanocomposite modified emulsion, which is modified by inorganic nanomaterials acrylate emulsion, wherein: the inorganic nanomaterials and nano-powders, nano-alumina sol complex matter, the amount of 250 to 2500 parts by weight, nano-alumina powder accounts for 5 to 30% nano-silica sol solid content; acrylate latex in an amount of 2500 parts by weight, the solid content of the emulsion was 40 ± 5%, said percentages are weight percentages.
2.根据权利要求1所述的乳液,其特征在于:所述纳米氧化铝粉体粒径为5~50纳米;所述纳米硅溶胶的颗粒粒度为5~30纳米,固体含量为20~40%。 2. The emulsion of claim 1, characterized in that: the nano-alumina powder diameter of 5 to 50 nm; silica sol of the nano-particle size of 5 to 30 nm, solids content of 20 to 40 %.
3.根据权利要求1所述的乳液,其特征在于:所述丙烯酸酯类乳液为丙烯酸酯乳液、苯丙乳液、醋丙乳液中的一种或几种。 3. The emulsion of claim 1, wherein: said acrylate emulsion acrylic emulsions, styrene-acrylic emulsion, acrylic emulsion vinegar in one or several.
4.一种权利要求1乳液的制备方法,其特征在于:首先按配方比例将纳米氧化铝粉体和纳米硅溶胶混合,再进一步用超声波分散至分散体粒度为100~200nm得到复配物,然后按配方比例用复配物对丙烯酸酯类乳液进行改性即可。 Preparation 1 An emulsion according to claim, characterized in that: first by the ratio of the nano-alumina powder formulation and mixing nano-silica sol, and then further dispersed using an ultrasonic dispersion particle size of 100 ~ 200nm was obtained compound, then formulated with complex material right proportion of acrylic emulsion can be modified.
5.根据权利要求4所述的制备方法,其特征在于:所述用复配物改性丙烯酸酯类乳液的方法是,在搅拌下将复配物加到已合成的丙烯酸酯类乳液中混拼完成改性,或者是将复配物加到反应器中,与组成丙烯酸酯类乳液的各组分,一起进行乳液聚合完成改性。 5. The production method according to claim 4, characterized in that: said method formulations were modified acrylate emulsion is under agitation, the synthesized compound was added to the acrylate emulsion mix fight complete modification, or the complex was added to the reactor, and the components of the composition of an acrylic emulsion, emulsion polymerization together complete modification.
Descripción  traducido del chino
复合纳米材料改性的乳液及其制备方法 Nanocomposites modified emulsion and its preparation method

技术领域 FIELD

本发明涉及一种复合纳米材料改性的乳液及其制备方法。 The present invention relates to a composite nanomaterials modified emulsion and its preparation method.

背景技术 BACKGROUND

用纳米材料改性乳液,通常采用纳米溶胶或纳米粉体。 Emulsion modified with nano materials, nano-sol or usually nanopowders. 用纳米溶胶如硅溶胶改性乳液,一般采用物理复合,即将乳液和纳米溶胶在机械搅拌下混合。 Nano Silica sol as modified emulsion, the general physical composite upcoming emulsions and nano sol mechanical stirring. 这样改性的乳液,虽然在涂膜硬度、回粘性、透气性和附着力等方面有所改善,但由于是物理复合,不能充分发挥纳米溶胶的改性作用,而且改性后乳液的贮存稳定性存在一定问题。 Such modified emulsion, although in the film hardness, adhesive back, breathability and improved adhesion, etc., it is a physical complex, can not fully play the role of nano-modified sol, and the modified storage-stable emulsion exists some problems. 另外,也有采用化学复合,即纳米溶胶参与有机单体的聚合反应,纳米溶胶与乳胶粒子形成了一定量的化学键,使二者之间相容性改善,从而提高了涂膜的性能,但是在乳液合成和贮存期间稳定性差。 Further, there is also electroless composite, i.e. Nanoparticles participate in the polymerization reaction of the organic monomer, Nanoparticles and latex particles form a certain amount of chemical bond, so that to improve compatibility between them, thereby improving the performance of the coating, but in the difference between synthesis and emulsion stability during storage. 用纳米粉体改性有机乳液,也可以将纳米粉体机械分散到乳液中,改善乳液性能,由于纳米粉体,其粒度为纳米级,极易团聚难分散均匀,因而纳米粉体的特性不能充分体现。 Organic emulsion modified with nano-powders, nano-powder can also be mechanically dispersed into the emulsion, the emulsion to improve performance, due to nano-powders, nano-particle size is easily reunite difficult uniform dispersion characteristics and therefore can not nanopowder fully reflected. 在乳液合成时,加入纳米粉体并把纳米粒子包裹到有机胶粒中形成核-壳结构,部分解决了纳米粉体的易团聚性。 When synthetic latex, adding nanopowders and parcel of the nanoparticles into the organic particles to form core - shell structure, a partial solution to the nanopowder easy reunion. 但是,由于纳米粉体比表面积大,表面能高,一方面造成乳液合成时易产生大量残渣或造成乳液胶凝,另一方面很难形成理想的核-壳结构的乳液。 However, due to the large surface area of nano powders, high surface energy, resulting in easy to produce large amounts of residue on the one hand, or cause gelation synthetic latex emulsions, on the other hand it is difficult to form the desired core - shell structure of the emulsion.

发明内容 SUMMARY

本发明的目的在于,提供一种复合纳米材料改性的乳液及其制备方法,该乳液的贮存稳定性大幅度提高,成膜后涂膜的耐水性和耐碱性明显改善,制备方法简单,纳米材料的改性效果明显。 Object of the present invention is to provide a composite nanomaterial modified emulsion and a preparation method, the storage stability of the emulsion is greatly improved, the water resistance of the coating film after film formation and the alkali resistance was significantly improved, simple preparation method, significantly modified the effect of nanomaterials.

实现本发明目的的技术方案:一种复合纳米材料改性的乳液,它是用无机纳米材料改性丙烯酸酯类乳液,无机纳米材料是纳米氧化铝粉体和纳米硅溶胶的复配物,用量为250~2500重量份,纳米氧化铝粉体占纳米硅溶胶固体含量的5~30%;丙烯酸酯类乳液用量为2500重量份,乳液的固体含量为40±5%,上述百分数为重量百分数。 The purpose of the present invention to achieve technical solutions: a composite nanomaterials modified emulsion, which is modified by inorganic nano-materials of acrylic emulsions, inorganic nano-materials, nano-alumina powder and nano-sol complex matter, the amount of 250 to 2500 parts by weight, nano-alumina powder accounts for 5 to 30% of nano-silica sol solid content; acrylate latex in an amount of 2500 parts by weight, the solid content of the emulsion was 40 ± 5%, said percentages are weight percentages.

上述乳液中,所述纳米氧化铝粉体粒径为5~50纳米;所述纳米硅溶胶的颗粒粒度为5~30纳米,固体含量为20~40%。 Above emulsion, the nano-alumina powder diameter of 5 to 50 nm; silica sol of the nano-particle size of 5 to 30 nm, solids content of 20 to 40%.

上述乳液中,所述丙烯酸酯类乳液是丙烯酸酯乳液、苯丙乳液、醋丙乳液中的一种或几种。 Above emulsion, the emulsion is an acrylate esters of acrylic emulsions, styrene-acrylic emulsion, acrylic emulsion vinegar in one or several. 可以由下述重量份的原料组成:单体1000份;乳化剂10~25份;引发剂5~20份;偶联剂0.1~20份;去离子水1500份。 May be formed of the following parts by weight of a raw material composition: 1000 parts monomer; emulsifying agents 10 to 25 parts; 5 to 20 parts initiator; and 0.1 to 20 parts coupling agent; 1500 parts of deionized water.

上述乳液中,所述丙烯酸酯类乳液采用半连续合成工艺,具体步骤是,在反应器内加入部分乳化剂、引发剂和去离子水,搅拌下升温至84~88℃,10分钟后同时滴加剩余的乳化剂、引发剂和去离子水混合液及单体和偶联剂的混合液,滴加时间1.5~2小时,聚合温度在84~88℃,滴加完毕再于86~90℃保温1小时,降温至40~50℃,过滤、放料即为丙烯酸酯类乳液。 The above-described emulsion, an acrylic emulsion of the semi-continuous synthesis process, the specific steps are added in the reactor part of emulsifier, initiator and deionized water, was warmed to 84 ~ 88 ℃, while a solution after 10 minutes plus residual emulsifier, initiator, and a mixture of deionized water and a mixture of monomers and coupling agents, the dropping time of 1.5 to 2 hours, the polymerization temperature is 84 ~ 88 ℃, the addition was complete and then at 86 ~ 90 ℃ incubated for 1 hour, cooling to 40 ~ 50 ℃, filtering, that is an acrylic emulsion discharge.

上述乳液中,所述单体是甲基丙烯酸甲酯、甲基丙烯酸乙酯、甲基丙烯酸丁酯、甲基丙烯酸异辛酯、丙烯酸甲酯、丙烯酸乙酯、丙烯酸丁酯、丙烯酸异辛酯、甲基丙烯酸、丙烯酸、苯乙烯、醋酸乙烯酯中的一种或几种。 Above emulsion, the monomer is methyl methacrylate, ethyl methacrylate, butyl methacrylate, methyl acrylate, isooctyl acrylate, methyl acrylate, ethyl acrylate, butyl acrylate, isooctyl acrylate , methacrylic acid, acrylic acid, styrene, vinyl acetate, one or several. 所述乳化剂为非离子型乳化剂或阴离子型乳化剂。 The non-ionic emulsifier or emulsifiers anionic emulsifiers. 例如,十二烷基硫酸钠、十二烷基苯磺酸钠、MS-1、HMPS、烷基酚聚氧乙烯醚等。 For example, sodium lauryl sulfate, sodium dodecylbenzenesulfonate, MS-1, HMPS, polyoxyethylene alkylphenol ether. 所述引发剂为过硫酸铵或过硫酸钾。 The initiator is ammonium persulfate or potassium persulfate. 所述偶联剂是硅烷偶联剂或者是钛酸酯偶联剂。 The coupling agent is a silane coupling agent or a titanate coupling agent. 其中硅烷偶联剂可以是含氨基、乙烯基、环氧基或甲基丙烯酰氧基的硅烷偶联剂中的一种或多种。 Wherein the amino group-containing silane coupling agent may be, vinyl, epoxy or methacryloxy silane coupling agent is one or more.

制备上述复合纳米材料改性的乳液的方法,首先按配方比例将纳米氧化铝粉体和纳米硅溶胶混合,再进一步用超声波分散至分散体粒度为100~200nm得到复配物,然后按配方比例用复配物对丙烯酸酯类乳液进行改性即可。 The composite nanomaterials modified emulsion prepared, first by the ratio of the nano-alumina powder recipe mix and nano-sol, and further dispersed by ultrasonic dispersion particle size of 100 ~ 200nm get complex matter, and then press the recipe proportions with a complex matter on modified acrylate emulsion can be.

在上述制备方法中,所述用复配物改性丙烯酸酯类乳液的方法是,在搅拌下加到已合成的丙烯酸酯类乳液中混拼完成改性,或者是将复配物加到反应器中,与组成丙烯酸酯类乳液的各组分,一起进行乳液聚合完成改性。 In the above production method, the formulations were modified with acrylic ester emulsion method is added with stirring to mix the synthesized acrylic emulsion fight complete modification, or the complex was added to the reaction vessel, and the components of the composition of an acrylic emulsion, emulsion polymerization together complete modification.

本发明的技术效果:采用本发明的技术方案的复合纳米材料改性的丙烯酸酯乳液,由于所用纳米材料是纳米氧化铝粉体和纳米硅溶胶,它可以使乳液同时获得两种纳米材料的特性,特别是在制备本发明乳液时,复配两种纳米材料,对于纳米氧化铝粉体而言,纳米硅溶胶实质上起到分散剂的作用,因为硅溶胶粒子是纳米级而且大部分颗粒粒度在15nm左右,表面有大量羟基。 Technical effect of the invention: the use of composite nanomaterials modified aspect of the present invention, acrylic emulsion, due to the use of nano-materials, nano-alumina powder and nano silica sol, which can be obtained at the same time the emulsion characteristics of the two nanomaterials , especially in the preparation of emulsions of the present invention, two complex nanomaterials, for nano-alumina powders, the nano-silica acts as a dispersant substantially, because nanoscale sol particles and most of the particle size about 15nm, a large number of surface hydroxyl groups. 这种硅溶胶粒子能渗透到纳米氧化铝粉体的团聚体间隙里并吸附在纳米氧化铝粉体的粒子表面,在超声波分散作用下,纳米氧化铝粉体能很好的分散并稳定在纳米硅溶胶中。 This sol particles can penetrate into the nano-alumina powder aggregates in the gap and adsorbed on the particle surface nano-alumina powder in an ultrasonic dispersion, nano-alumina powder can be well dispersed and stabilized in nano sol. 克服了已有技术中因纳米粉体聚集所带来的各种弊病。 Overcome the prior art, the nano powder gathered brought ills. 同时分散良好的两种纳米材料之间相互还具有协同稳定作用,因而用这种方法获得的复配物再进一步改性丙烯酸酯类乳液,其贮存稳定性大大优于单独使用一种纳米材料改性的同类乳液,在成膜后,耐水性方面明显优于未改性的同类乳液。 Mutual synergistic stabilizing effect also well dispersed simultaneously between two nano materials, formulations were therefore obtained in this way is then further modified acrylate emulsion, its storage stability is much better than using a single modified nanomaterials of the same emulsion after film, obviously superior water resistance unmodified similar emulsion. 此外,采用上述方法复配的纳米材料,在改性丙烯酸酯类乳液时,无论是与有机单体一起聚合,还是直接将复配物与已合成的乳液机械混合,对本发明改性的乳液贮存稳定性均有明显提高。 Furthermore, the above method complex nanomaterials, when modified acrylic ester emulsion polymerization together with either the organic monomer, or directly to the emulsion formulations were mechanically mixed with the synthesized, storage of the modified latex of the present invention stability has improved significantly.

具体实施方式 DETAILED DESCRIPTION

以下结合实施例对本发明作进一步具体描述,但不局限于此。 Following examples of the present invention is further specifically described, but is not limited thereto. 实施例中各原料的用量均为重量份,除另有说明外,均为市售工业品。 The amount of each raw material of examples are by weight, unless otherwise indicated, are commercially available industrial products.

实施例11、纳米材料复配物的制备将10重量份纳米氧化铝粉体(粒度20nm),与400重量份纳米硅溶胶(固体含量25%,平均粒度10nm),在容器内搅拌均匀,然后置于超声波分散仪(功率:800瓦)分散至粒度<120nm得到复配物,其中纳米氧化铝粉体占纳米硅溶胶固体量的10%,贮存备用。 Example 11, nanomaterials complex matter 10 parts by weight of nano-alumina powder (particle size 20nm), and 400 parts by weight of nano-sol (solids content of 25%, the average particle size 10nm), stir in the container, and then placed in an ultrasonic dispersion device (power: 800 watts) dispersed to a particle size <120nm get complex matter, which accounts for 10 percent of nanometer alumina nano-sol solids, storage backup.

2、丙烯酸酯乳液的配方见表1。 2, acrylic emulsion formulations are shown in Table 1.

表1 Table 1

3、改性乳液的制备将2/3的去离子水加入反应器内升温,温度达到84~88℃时,加入乳化剂、引发剂和500份去离子水混合物的20%,10分钟后,开始同时滴加单体和偶联剂的混合液及剩余量的乳化剂、引发剂和500份去离子水的混合液,控制在1.5~2小时内滴加完毕,升温至86~90℃保温1小时,降温至40~50℃过滤、放料制得丙烯酸酯乳液。 3, the preparation of the modified emulsion of deionized water was added 2/3 of the reactor was raised, the temperature reached 84 ~ 88 ℃, adding emulsifier, initiator agent and 500 parts of 20% deionized water mixture, after 10 minutes, Start added dropwise a mixture of the monomer and coupling agent and the remaining amount of emulsifier, initiator and a mixture of 500 parts of deionized water, controlling the addition was complete within 1.5 to 2 hours, warmed to 86 ~ 90 ℃ incubated 1 hour, cooled to 40 ~ 50 ℃ filters, discharge obtained acrylic emulsion. 搅拌下加入已制得的纳米材料复配物,混合0.5小时得到复合纳米材料改性的丙烯酸酯乳液。 Added with stirring already prepared nanomaterials complex, mixed 0.5 hours to obtain nanocomposite modified acrylic emulsion.

实施例21、采用实施例1相同配方和方法制备纳米材料复配物。 Example 21, Example 1 using the same formulation and method for preparing copolymers with nanomaterials.

2、丙烯酸酯乳液的配方与实施例1相同。 2, the same acrylic emulsion formulation as in Example 1.

3、改性乳液的制备将按实施例1配方和方法制得的复配物和2/3的去离子水(1000份)加到反应器内升温,温度达到84~88℃时,以下再按实施例1的乳液聚合方法在复配物存在下完成乳液聚合,制得复合纳米材料改性的丙烯酸酯乳液。 3, the modified emulsion prepared as described in Example 1 and the formulation obtained by the process of complexation and 2/3 deionised water (1000 parts) was added to the reactor was heated, the temperature reached 84 ~ 88 ℃, then the following as described under complete emulsion prepared nanocomposite modified acrylate latex emulsion polymerization process of Example 1 in the presence of complex objects.

比较例1重复实施例1的过程,只是用纳米硅溶胶取代纳米材料复配物并与实施例1相同的丙烯酸酯乳液机械搅拌混拼。 Comparative Example 1 The same procedure as in Example 1, but replacing complex matter nanomaterials and nano-sol same manner as in Example 1 acrylic emulsion Blending mechanical agitation.

比较例2 Comparative Example 2

重复实施例2的过程,只是用纳米硅溶胶取代纳米材料复配物,与组成丙烯酸酯乳液的各组分一起聚合。 Repeating the procedure of Example 2, except replacing complex matter nanomaterials nano sol, with each component consisting of polymerized acrylic emulsion.

比较例3按实施例1丙烯酸酯乳液的配方和方法,制备丙烯酸酯乳液,不加任何纳米材料。 Comparative Example 3 according to the recipe and method of Example 1 Example of acrylic emulsion, acrylic emulsion preparation, without any nanomaterials.

实施例31、按实施例1的配方和方法制备纳米材料的复配物。 Example 31, as described in the recipe, and formulations were prepared as in Example 1 of nanomaterials.

2、苯丙乳液的配方见表2。 2, styrene-acrylic emulsion formulations are shown in Table 2.

表2 Table 2

3、改性乳液的制备。 3. Preparation of modified emulsion.

除采用表2的单体代替实施例1表1的单体外,其余操作均同实施例1,制得的苯丙乳液,搅拌下加入已制得的纳米材料复配物,混合0.5小时得到复合纳米材料改性的苯丙乳液。 In addition to using the monomers in Table 1 in place of monomer of Example 1 in Table 2 embodiment, the other operations were the same as Example 1, and the obtained styrene-acrylic emulsion Example, was added with stirring the prepared nano-material complex, mixed 0.5 hours to give Nanocomposites modified styrene-acrylic emulsion.

实施例41、按实施例1的相同的配方和方法制备纳米材料的复配物。 Example 41, according to embodiments of the same formulation and method for preparing nanomaterials complex object 1.

2、苯丙乳液的配方与实施例3相同。 2, styrene-acrylic emulsion formulation of Example 3.

3、改性乳液的制备。 3. Preparation of modified emulsion.

将2/3的去离子水和复配物加入反应器升温,温度达到84~88℃时,以下再按实施例3的乳液聚合方法在复配物存在下完成乳液聚合,得到复合纳米材料改性的苯丙乳液。 When 2/3 of deionized water and added to the reactor complex was heated, the temperature reached 84 ~ 88 ℃, then the following Example 3 of the completion of emulsion polymerization emulsion polymerization process in the presence of compound to yield modified nanocomposite of styrene-acrylic emulsion.

比较例4重复实施例3的过程,只是用纳米硅溶胶取代纳米材料复配物,并与实施例3相同的丙苯乳液机械搅拌混拼。 Comparative Example 4 The procedure of Example 3 was repeated, except that copolymers with nanomaterials substituted with nano colloidal silica, and in Example 3 of propylbenzene emulsion was stirred mechanically Blending.

比较例5重复实施例4的过程,只是用纳米硅溶胶取代纳米材料复配物,并与组成苯丙乳液的各组分一起聚合。 Comparative Example 5 The procedure of Example 4 is repeated, but replacing complex nanomaterials using nano silica sol composition and aggregation with each component consisting of styrene-acrylic emulsion.

比较例6按实施例3苯丙乳液的配方和方法制备苯丙乳液,不加任何纳米材料。 Comparative Example 6 according to the recipe and method described in Example 3 Preparation of styrene-acrylic emulsion styrene-acrylic emulsion, without any nanomaterials.

上述实施例1~4和比较例1~6的乳液性能按下述方法检测,结果见表3。 Examples 1 to 4 and Comparative Emulsion Examples 1 to 6 according to the following methods, and the results are shown in Table 3.

表3 Table 3

检验复合纳米材料改性的乳液的性能。 Performance testing of composite nanomaterials emulsion modified.

1、贮存稳定性试验。 1, the storage stability test.

在约100ml的容器(玻璃或塑料制)中装入一定量(留有5%的空间)的待检样品并密封容器。 Charged in about 100ml containers (glass or plastic) in an amount (5% of the space left) of sample to be assayed and sealed container. 将容器放入40°±2℃恒温箱中20小时,取出后在23±2℃放置3小时,再称重。 The vessel was placed in 40 ° ± 2 ℃ incubator for 20 hours, after removing the stand for 3 hours at 23 ± 2 ℃, reweighed. 样品贮存前后相差不超过称量前重量的1%,打开容器,观察有无硬块、絮凝及分层现象。 The samples were stored before and after a difference of less than 1% of pre-weighed, open container, observe whether the lump, flocculation and stratification.

2、耐水性评价试验用60μm刮涂器将上述乳液涂覆在玻璃板上,在60℃干燥30分钟,再于常温放置48小时成膜。 2, the water resistance evaluation test The above emulsion was coated on a glass plate, dried for 30 minutes with 60μm bar coater at 60 ℃, then 48 hours at ambient temperature film formation. 将涂膜浸入水中,目视观察涂膜的起泡状况。 The film immersed in water, blistering condition of the coating film was visually observed.

检验结果见表3由上述检验结果可知,本发明的复合纳米材料改性的乳液,贮存稳定性明显优于用单一纳米材料改性的乳液(比较例1、2、4和5),复合纳米材料改性的乳液耐水性明显优于未改性的乳液(比较例3和6)。 Test results are shown in Table 3 from the above test results, the nanocomposite modified emulsion of the present invention, the storage stability was significantly better than with a single nano-materials modified emulsion (Comparative Example 2, 4 and 5), composite nano material modification emulsion water resistance was better than the unmodified emulsion (Comparative Examples 3 and 6). 因此,本发明的改性乳液综合性能更好。 Accordingly, the modified emulsion of the invention better overall performance.

用本发明实施例1~4的改性乳液配制外墙涂料,其涂膜的耐水性、耐碱性和耐人工老化性均明显优于GB/T9755-2001优等品的指标。 Modified emulsion of Example 1 to 4 of the present invention formulated with exterior paint, the film's water resistance, alkali resistance and artificial aging were significantly better than GB T9755-2001 Excellence for indicators /.

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Clasificaciones
Clasificación internacionalC08F20/10, C08K3/34, C08F6/14
Eventos legales
FechaCódigoEventoDescripción
22 Dic 2004C06Publication
23 Feb 2005C10Request of examination as to substance
29 Mar 2006C14Granted
10 Oct 2012C41Transfer of the right of patent application or the patent right
10 Oct 2012ASSSuccession or assignment of patent right
Owner name: CNOOC CHANGZHOU PAINT + COATINGS INDUSTRY RESEARCH
Effective date: 20120910
Free format text: FORMER OWNER: CHANGZHOU INST OF PAINT CHEMICAL, CHINESE CHEMICAL BUILDING CORP.