阅读说明：本技术 作为锌粉漆的储存稳定前体的水性溶胶-凝胶组合物 (Aqueous sol-gel composition as storage-stable precursor for zinc paint ) 是由 P.阿尔伯特 D.布林曼 J.基尔贝格 E.尤斯特 于 2018-04-24 设计创作，主要内容包括：本发明涉及作为锌粉漆的储存稳定的无溶剂前体的水性溶胶-凝胶组合物,其基于至少以下组分的反应：(i)通式(I)的缩水甘油氧基丙基烷氧基硅烷X-Si(OR)<Sub>3</Sub>(I),其中X表示3-缩水甘油氧基丙基,和R表示甲基或乙基,(ii)平均粒度为5至150 nm且固体含量为≥45至≤55重量%的水性硅溶胶,(iii)至少一种酸,其选自硝酸、硫酸、盐酸、磷酸、甲酸、乙酸,和(iv)通式(II)的双-氨基烷氧基硅烷：(R<Sup>1</Sup>O)<Sub>3</Sub>Si(CH<Sub>2</Sub>)<Sub>3</Sub>(NH)(CH<Sub>2</Sub>)<Sub>3</Sub>Si(OR<Sup>1</Sup>)<Sub>3</Sub>(II),其中R<Sup>1</Sup>表示甲基或乙基,和任选的(v)至少一种通式(III)的另外的烷氧基硅烷Y<Sub>n</Sub>-Si(OR<Sup>3</Sup>)<Sub>4-n</Sub>(I),其中Y表示丙基、丁基、辛基、3-巯基丙基,3-脲基丙基或3-异氰酸根合丙基,R<Sup>3</Sup>表示甲基或乙基基团,和n等于0或1,其中组分(ii)与组分(i)的初始质量比为0.55至0.75,和组分(ii)与组分(iv)的初始质量比为0.35至0.55,和(vi)含量为基于该组合物计5至70重量%的至少一种微粒状填料,其选自沉淀二氧化硅、热解二氧化硅、结晶二氧化硅、高岭土、长石、滑石、氧化锌、氧化铁(III)、氧化铝、二氧化钛,其中该储存稳定的水性溶胶-凝胶组合物具有基于整个组合物计＜3重量%的醇含量和3.0至6.5的pH值,本发明还涉及用于制备这类溶胶-凝胶组合物的特定方法及其用途。(The invention relates to an aqueous sol-gel composition as a storage-stable, solvent-free precursor for zinc paints, based on the reaction of at least the following components: (i) glycidoxypropylalkoxysilane of the general formula (I) X-Si (OR)3(I), in which X represents 3-glycidoxypropyl and R represents methyl or ethyl, (II) aqueous silica sol having an average particle size of from 5 to 150 nm and a solids content of from ≥ 45 to ≤ 55% by weight, (iii) at least one acid selected from nitric acid, sulfuric acid, hydrochloric acid, phosphoric acid, formic acid, acetic acid, and (iv) bis-aminoalkoxysilane of the general formula (II): (R1O)3Si (CH2)3(NH) (CH2)3Si (OR1)3(II) wherein R1 represents methyl OR ethyl, and optionally (v) at least one further alkoxysilane Yn-Si (OR3)4-n (i) of the general formula (III) wherein Y represents propyl, butyl, octyl, 3-mercaptopropyl, 3-ureidopropyl OR 3-isocyanatopropyl, R3 represents methyl OR ethyl, and n is equal to 0 OR1, wherein the initial mass ratio of component (II) to component (i) is from 0.55 to 0.75, and the initial mass ratio of component (II) to component (iv) is from 0.35 to 0.55, and (vi) the content is from 5 to 70% by weight, based on the composition, of at least one particulate filler selected from precipitated silica, fumed silica, crystalline silica, kaolin, feldspar, talc, zinc oxide, Iron (III) oxide, aluminum oxide, titanium dioxide, wherein the storage-stable aqueous sol-gel composition has an alcohol content of < 3% by weight, based on the entire composition, and a pH value of from 3.0 to 6.5, to a specific process for preparing such sol-gel compositions, and to the use thereof.)