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Silane coupling agent modified lithium silicate base coating and preparation method thereof

A silane coupling agent, lithium silicate technology, applied in the direction of alkali metal silicate coatings, coatings, etc., can solve the problem that the coating film of lithium silicate based coatings is hard and brittle, prone to cracks, and the decorative effect is not ideal and other problems, to achieve the effect of low energy consumption and overcoming hard and brittle

Inactive Publication Date: 2014-06-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems that the coating film of lithium silicate-based paint is hard and brittle, prone to cracks and unsatisfactory decorative effects, the invention provides a silane coupling agent modified lithium silicate-based paint

Method used

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  • Silane coupling agent modified lithium silicate base coating and preparation method thereof
  • Silane coupling agent modified lithium silicate base coating and preparation method thereof
  • Silane coupling agent modified lithium silicate base coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] paint preparation

[0039] Grind the quartz powder and chromium oxide in a ball mill respectively, and screen out the quartz powder and chromium oxide with a particle size of ≤10um, mix 5 parts of quartz powder with a particle size of ≤10um and 5 parts of chromium oxide with a particle size of ≤10um, and then add 5 parts Mix and stir water and 90 parts of lithium silicate aqueous solution with a mass percentage of 22.5% and a modulus of 4.8, and measure with a fineness measuring instrument. The degree of dispersion in the mixture reaches below 10um, and the insoluble matter is filtered off. Slowly add 3 parts of γ-aminopropyltriethoxysilane (KH550), 3 parts of aluminum phosphate and 1 part of zinc oxide during the stirring process, and stir evenly to obtain the silane coupling agent modified lithium silicate coating.

[0040] Coating flexibility

[0041] The impact strength of the paint is 30kg·cm. The flexibility and impact resistance of the paint are related. The high ...

Embodiment 2

[0045] Grind mica and titanium oxide in a ball mill respectively, and screen out dimica and titanium oxide with a particle size of ≤10um, mix 5 parts of mica with a particle size of ≤10um and 10 parts of titanium oxide with a particle size of ≤10um, and then add 5 parts of water and 90 parts of lithium silicate aqueous solution with a mass percentage of 22.5% and a modulus of 4.8 were mixed and stirred, and measured with a fineness measuring instrument. The degree of dispersion in the mixture reached below 10um, and the insoluble matter was filtered off. Slowly add 1 part of γ-aminopropyltriethoxysilane (kh550), 3 parts of aluminum phosphate and 0.5 part of zinc oxide during stirring, and stir evenly to obtain the desired coating.

[0046] Coating flexibility

[0047] The impact strength of the paint is 40kg·cm. The flexibility and impact resistance of the paint are related. The high impact strength of the paint can reflect the good flexibility of the paint.

[0048] Other Pr...

Embodiment 3

[0051] paint preparation

[0052] Grind quartz powder and iron oxide in a ball mill respectively, and screen out quartz powder and chromium oxide with a particle size of ≤10um, mix 5 parts of quartz powder with a particle size of ≤10um and 5 parts of iron oxide with a particle size of ≤10um, and then add 5 parts Mix and stir water and 90 parts of lithium silicate aqueous solution with a mass percentage of 22.5% and a modulus of 4.8, and measure with a fineness measuring instrument. The degree of dispersion in the mixture reaches below 10um, and the insoluble matter is filtered off. Slowly add 1 part of γ-aminopropyltriethoxysilane (KH550) and 1 part of aluminum phosphate during stirring, and stir evenly to obtain the required coating.

[0053] Coating flexibility

[0054] The impact strength of the paint is 45kg·cm. The flexibility and impact resistance of the paint are related. The high impact strength of the paint can reflect the good flexibility of the paint.

[0055] Oth...

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Abstract

The invention discloses silane coupling agent modified lithium silicate base coating. The silane coupling agent modified lithium silicate base coating is prepared from the following raw materials in parts by weight: 90 parts of lithium silicate, 3-10 parts of pigment, 3-10 parts of filler, 1-5 parts of silane coupling agent, 1-5 parts of curing agent and 2-5 parts of water. The silane coupling agent modified lithium silicate base coating overcomes the defects of hard and crisp coating, high fracturing rate and undesirable decorative effect, can be solidified at normal temperature automatically, is low in energy consumption, environment-friendly and pollution-free, and does not release VOC (volatile organic compound).

Description

technical field [0001] The invention relates to the field of paint production, in particular to a silane coupling agent-modified lithium silicate-based paint, and also relates to a preparation method of the silane-coupling agent-modified lithium silicate-based paint. Background technique [0002] Lithium silicate-based paint is a kind of water glass paint (also known as water glass-based inorganic paint). The components of water glass coating are water glass, curing agent, filler, pigment and auxiliary agent. Water glass is the cement in water glass paint, also known as base material or adhesive, it is the key component of paint, mainly plays the role of bonding and film formation. Water glass is composed of alkali metal silicates, generally including lithium silicate (Li 2 O nSiO 2 ), sodium silicate (Na 2 O nSiO 2 ), potassium silicate (K 2 O nSiO 2 ) and potassium sodium water glass (K 2 O Na 2 O nSiO 2 ), where n refers to the modulus. The test data show that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D7/12
Inventor 丁新更蒋乐杨辉赵俊川孟成
Owner ZHEJIANG UNIV
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