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Preparation method of high-retention decorative-laminated-paper titanium oxide powder

A technology of retention rate and decorative layer, applied in the field of preparation of titanium dioxide for high-retention decorative laminated paper, can solve the problems of poor light resistance, poor dispersion performance and hiding power, and poor light resistance of laminated decorative paper. problem, to achieve the effect of improving gloss, improving retention, and enhancing light resistance

Inactive Publication Date: 2017-10-17
朱文杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: the low retention rate of titanium dioxide used for laminated paper in pulp, poor dispersion performance and hiding power, poor light fastness, resulting in poor light fastness of laminated decorative paper Defects, a preparation method of titanium dioxide for decorative laminated paper with high retention rate is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Weigh 333g of aluminum sulfate octadecahydrate, add it to 500mL of deionized water, stir at 300r / min until the solid is completely dissolved, and then add dropwise ammonia water with a mass fraction of 20% at 1mL / min while stirring continuously to obtain a mixed solution, add dropwise Ammonia water until the pH of the mixed solution is 8.5 to obtain a reaction solution, put the reaction solution into a hydrothermal reaction kettle, keep it warm at 200°C for 20 hours, cool to room temperature, put it in a centrifuge and centrifuge to obtain a precipitate, and wash it with deionized water Precipitate 3 times, then place the precipitate in a drying oven, dry at 105°C for 2h, place the dried product in a muffle furnace, and calcinate at 550°C for 3h to obtain nano-flaky alumina, weigh 5g of nano-flaky Alumina, add 200mL of sodium carbonate solution with a mass fraction of 5%, soak for 20h in a constant temperature water bath at 40°C, then add 2.5g of tin tetrachloride, 5g of...

example 2

[0024]Weigh 498g of aluminum sulfate octadecahydrate, add it to 750mL of deionized water, stir at 350r / min until the solid is completely dissolved, and then add dropwise ammonia water with a mass fraction of 20% at 1mL / min while stirring continuously to obtain a mixed solution, add dropwise Ammonia water until the pH of the mixed solution is 8.8 to obtain a reaction solution, put the reaction solution into a hydrothermal reaction kettle, keep it warm at 210°C for 22 hours, cool to room temperature, put it in a centrifuge, and centrifuge to obtain a precipitate, wash with deionized water Precipitate 4 times, then place the precipitate in a drying oven, dry at 108°C for 2h, place the dried product in a muffle furnace, and calcinate at 575°C for 3h to obtain nano-flaky alumina, weigh 8g of nano-flaky Alumina, add 300mL of sodium carbonate solution with a mass fraction of 5%, soak for 22h in a constant temperature water bath at 45°C, then add 3.7g of tin tetrachloride, 8g of silane...

example 3

[0027] Weigh 666g of aluminum sulfate octadecahydrate, add it to 1000mL of deionized water, stir at 400r / min until the solid is completely dissolved, and then add dropwise ammonia water with a mass fraction of 20% at 2mL / min while stirring continuously to obtain a mixed solution, add dropwise Ammonia water until the pH of the mixed solution is 9.0 to obtain a reaction solution, put the reaction solution into a hydrothermal reaction kettle, keep it warm at 220°C for 24 hours, cool it to room temperature, put it in a centrifuge, and centrifuge to obtain a precipitate, wash it with deionized water Precipitate 5 times, then place the precipitate in a drying oven, dry at 110°C for 3h, place the dried product in a muffle furnace, and calcinate at 600°C for 4h to obtain nano-flaky alumina, weigh 10g of nano-flaky Alumina, add 400mL of sodium carbonate solution with a mass fraction of 5%, soak for 24h in a constant temperature water bath at 50°C, then add 5.0g of tin tetrachloride, 10g...

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PUM

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Abstract

The invention discloses a preparation method of titanium dioxide for decorative laminated paper with high retention rate, and belongs to the technical field of titanium dioxide production. The invention firstly uses aluminum sulfate octadecahydrate as a raw material, controls the precipitation morphology through ammonia water, and obtains nano-flaky alumina, which is modified by tin tetrachloride, a silane coupling agent and the like and used as a template, and then titanium tetrachloride is used as a template. As a titanium source, the nano-sheet alumina is coated, and then the aluminum phosphate layer and the alumina layer are sequentially coated to obtain a mixed solution of re-coated titanium dioxide. The titanium dioxide for decorative laminated paper with high retention rate can be obtained by grinding. The titanium dioxide prepared by the invention can improve the light resistance, dispersibility and hiding power of the titanium dioxide in the laminated paper very well, and can meet the requirements of titanium dioxide for laminated paper. requirements.

Description

technical field [0001] The invention discloses a preparation method of titanium dioxide for decorative laminated paper with a high retention rate, and belongs to the technical field of titanium dioxide production. Background technique [0002] Titanium dioxide, commonly known as titanium dioxide, is considered to be a white pigment with the best performance at present, and is widely used in coatings, plastics, papermaking, printing ink, chemical fiber, rubber, cosmetics and other industries. The industrial production methods of titanium dioxide mainly include the chloride method and the sulfuric acid method. The basic technological process of sulfuric acid production includes: preparation of metatitanic acid, bleaching and rinsing of metatitanic acid, salt treatment, calcining and crushing, post-treatment and other processes. [0003] After the metatitanic acid produced by hydrolysis of titanic acid is washed to remove impurity ions, if it is directly calcined without salt ...

Claims

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Application Information

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IPC IPC(8): C09C1/36C09C3/06
CPCC09C1/3607C01P2006/60C01P2006/90C09C1/3661C09C3/063
Inventor 许双健杨阳李雪晴
Owner 朱文杰
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