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Method for preparing titanium nano particle and polyester composite paint and composite paint prepared by same

A technology of nano-particles and composite coatings, applied in the direction of polyester coatings, coatings, etc., can solve the problems of easy agglomeration, affecting material properties, and high production costs, and achieve good mechanical properties, reduce production costs, and evenly distribute the effect

Inactive Publication Date: 2010-10-13
EVONIK DEGUSSA CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are certain problems in the preparation methods of these three organic-inorganic hybrid materials. For example, the inorganic particles need to be prepared separately and then added, and the production cost is high; because the prepared inorganic particles have the problem of easy agglomeration, which will also affect the obtained results. Material properties

Method used

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  • Method for preparing titanium nano particle and polyester composite paint and composite paint prepared by same
  • Method for preparing titanium nano particle and polyester composite paint and composite paint prepared by same
  • Method for preparing titanium nano particle and polyester composite paint and composite paint prepared by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030]Add 445.6g of dimethyl terephthalate (DMT), 653.9g of neopentyl glycol (NPG), 163.2g of trimethylolpropane (TMP) and 0.1912g of catalyst zinc acetate (dissolved in 0.96g of water) to the glass for reaction In the container, the temperature was raised to 210°C within 90 minutes, and the temperature was lowered to 80°C when the distillate (methanol) reached the theoretical value (about 145g). After the mixed solution of 69ml of n-butyl titanate and 200ml of xylene was slowly added dropwise under rapid stirring, 381.2g of isophthalic acid (IPA) and 287.6g of adipic acid (AA) were sequentially added while keeping the temperature below 100°C. Slowly raise the temperature to 225°C, during which xylene will be distilled out. When the final distillate (butanol, water and glycol) reaches 95% of the theoretical value (about 370g), the acid value and hydroxyl value of the system are often measured. When The reaction is completed when the acid value reaches 8-12 mg KOH / g and the hyd...

Embodiment 2

[0034] 445.6g dimethyl terephthalate (DMT), 653.9g neopentyl glycol (NPG), 163.2g trimethylolpropane (TMP), 0.1912g catalyst zinc acetate (dissolved in 0.96g water) and 69ml titanium Add the mixed solution of n-butyl acid and 200ml xylene into the glass reactor, slowly raise the temperature to 210°C, and cool down to 80°C when the distillate (methanol) reaches the theoretical value (about 145g). 381.2 g of isophthalic acid (IPA), 287.6 g of adipic acid (AA) were slowly added sequentially under rapid stirring. Slowly raise the temperature to 225°C. When the final distillate (butanol, water and glycol) reaches 95% of the theoretical value (about 370g), the acid value and hydroxyl value of the system are often measured. When the acid value reaches 8-12mg KOH / g. When the hydroxyl value reaches 90-100mgKOH / g, cool down to 130°C. A titanium-based nanoparticle / polyester composite coating with a titanium-based nanoparticle content of 1% was obtained. 1600 g of xylene and butyl acet...

Embodiment 3

[0036] Add 445.6g dimethyl terephthalate (DMT), 653.9g neopentyl glycol (NPG), 163.2g trimethylolpropane (TMP), 0.1912g catalyst zinc acetate (dissolved in 0.96g water) to the glass for reaction In the container, the temperature was slowly raised to 200-210°C, and when the distillate (methanol) reached the theoretical value (about 145g), the temperature was lowered to 80°C. To the reaction system, slowly drop the mixed solution of titanium tetrachloride (37ml) and xylene (100ml) mixed in a certain proportion with a dropping funnel, and then add 381.2g of isophthalic acid (IPA), 287.6g of adipic acid (AA). Slowly raise the temperature to 220-230°C, when the distillate (water, diol) reaches 95% of the theoretical value (about 180g), often measure the acid value and hydroxyl value of the system, when the acid value reaches 8-12mgKOH / g, the hydroxyl When the value reaches 90-100mg KOH / g, the temperature is lowered to 130° C. to obtain a titanium-based nanoparticle / polyester compo...

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Abstract

The invention relates to a preparation method of in-situ generation of a titanium nano particle and polyester composite paint. The preparation process of the composite paint comprises the following steps: adding the precursor of a titanium compound in the system by adopting a proper method; utilizing the released water thereof to hydrolyze the precursor of the titanium compound to form the titanium nano particles and form the titanium nano particle / polyester composite paint with evenly-distributed titanium nano particles and good mechanical properties and transparency in an in-situ manner; and a thin film prepared by the composite paint has good ultraviolet absorbability and good mechanical property. The method of the invention leads the preparation process of the titanium compound and the polymerization process of the polyester to be performed at the same time, thus shortening preparation period, lowering production cost, effectively avoiding the problem of quadric agglomeration and dispersion difficulty caused by directly adding inorganic particles, and being widely used in preparation field of composite paints.

Description

technical field [0001] The invention belongs to the field of organic-inorganic hybrid coatings, and relates to a composite coating of titanium compound modified polyester. Background technique [0002] The polyester matrix is ​​an organic macromolecule with polybasic acid and polyol ester as the main chain and fatty acid (or other monobasic acid) as the side chain. It is the most important resin for coatings, and it is also the largest and earliest used in the coatings industry. Synthetic resin. Because the resin coating has the advantages of many substrates, great modification potential, simple process, and extremely wide application, it has always maintained a relatively strong vitality. [0003] At present, the modification of polyester-based coatings has attracted widespread attention. Among them, organic-inorganic hybrid coatings prepared by using inorganic particles to modify polyester-based coatings have attracted widespread attention from researchers from all over t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D7/12
Inventor 朱美芳孙宾俞昊董卫卫施瓦兹·马库什克劳迪娅·托拉维纳·弗艾塔
Owner EVONIK DEGUSSA CHINA
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