Seal primer added polymer with formaldehyde catching function and preparation method of polymer

A technology for sealing primers and polymers, applied in the direction of polyurea/polyurethane coatings, coatings, epoxy resin coatings, etc., can solve the problem of not considering the compatibility of primers, the decline of formaldehyde absorption performance, and the decline of coating film-forming performance. and other problems, to achieve the effect of lasting formaldehyde capture and removal and obvious formaldehyde capture and removal

Inactive Publication Date: 2015-01-28
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formaldehyde absorbers reported in the above literature are all physical additions, without considering the compatibility with various types of primers, and are likely to cause a decrease in the film-forming performance of the paint
At the same time, with the passage of time, small molecule additives migrate significantly in the paint film-former, resulting in a decrease in the formaldehyde absorption performance of the paint film-former

Method used

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  • Seal primer added polymer with formaldehyde catching function and preparation method of polymer
  • Seal primer added polymer with formaldehyde catching function and preparation method of polymer
  • Seal primer added polymer with formaldehyde catching function and preparation method of polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 80g of methacrylamide, 30g of butyl acrylate, 40g of methyl methacrylate, 30g of lauryl methacrylate, 2.1g of azobisisobutyronitrile, mix well and add the In the dropping funnel for use.

[0025] In a 500mL four-necked reaction flask equipped with stirring, a thermometer, a reflux condenser and a dropping funnel, add 90 g of the solvent ethylene glycol methyl ether acetate, raise the temperature to 95°C while stirring, and start to drop into the dropping funnel The mixed reaction raw material solution was kept at 95° C., and it took 2.5 hours to complete the dropwise addition of the mixed reaction raw material solution at a uniform speed. After the dropwise addition is completed, add 0.14~0.288g (reaction raw material amount=80+30+40+30=180g, 180×(0.08~0.16)=0.14~0.288g) catalyst (azodiiso Butyronitrile), under stirring, the temperature was raised to 105°C and kept at this temperature for 2.5 hours. At this time, the preparation of the resin was completed, and a ...

Embodiment 2

[0030] Weigh 60g of acryloyl hydrazine, 10g of butyl acrylate, 10g of ethyl acrylate, 30g of methyl methacrylate, 20g of lauryl acrylate, and 1.04g of benzoyl peroxide, mix them uniformly and place them in a dropping funnel for use.

[0031] In the device of Example 1, 52 g of solvent propylene glycol methyl ether acetate was added, and the temperature was raised to 90° C. under stirring, and the mixed reaction raw material solution in the dropping funnel was started to be added dropwise, and it took 3.0 hours to maintain 90° C. Add the mixed raw material solution dropwise at an even speed. After the dropwise addition is completed, add 0.104~0.208g (reaction raw material amount=60+10+10+30+20=130g, 130×(0.08~0.16)=0.104~0.208g) catalyst (benzene peroxide formyl), under stirring, the temperature was raised to 110°C, and kept at this temperature for 3.0 hours. At this time, the preparation of the resin was completed, and a transparent, light yellow viscous liquid was obtained—a ...

Embodiment 3

[0036] Weigh 100g of methacrylamide, 30g of butyl acrylate, 10g of ethyl acrylate, 30g of methyl methacrylate, 20g of styrene, 40g of isooctyl methacrylate, 3.7g of catalyst azobisisobutylcyanide, mix Evenly placed in the dropping funnel for use.

[0037] In the device of Example 1, add 138 g of isopropanol as a solvent, raise the temperature to 100°C while stirring, start to drop the mixed reaction raw material solution in the dropping funnel, and complete the mixed raw material solution in 2.0 hours while maintaining 100°C The average speed dropwise. After the dropwise addition was completed, add 0.18~0.368g catalyst (reaction raw material amount=100+30+10+30+20+40=230g, 230*(0.08~0.16)=0.18~0.368g) in the reaction flask (even Azodiisobutyrocyanide), in a stirring state, was incubated at 100°C for 3.0 hours to obtain a transparent, light yellow viscous liquid - a wood sealing primer with a formaldehyde trapping function with a solid content of 63% to add polymer 370g.

[...

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Abstract

The invention discloses a seal primer added polymer with a formaldehyde catching function. The seal primer comprises acrylamide, an acrylate soft monomer, an acrylate hard monomer, an acrylate long-chain monomer, an initiator and an organic solvent. The invention further discloses a preparation method of the seal primer added polymer with the formaldehyde catching function. Resin prepared by adopting the seal primer added polymer with the formaldehyde catching function and the preparation method thereof has good compatibility with existing wooden ware primers (nitro wooden ware primer, polyester two-component wooden ware primer, acrylic emulsion type wooden ware primer, epoxy two-component wooden ware primer and the like); according to the formaldehyde content of a wooden ware base material, the polymer is added into the traditional wooden ware primer; and the wooden ware seal primer prepared by adding the polymer has obvious and lasting formaldehyde catching and clearing capability on the premise that obvious poor influence is not produced on the aspects of closure, adhesion, flexibility, polishing property and the like.

Description

technical field [0001] The invention relates to an additive for woodware sealing primers, in particular to a sealing primer additive polymer with formaldehyde trapping function and a preparation method thereof. Background technique [0002] With the enhancement of people's awareness of environmental protection, the environmental protection of materials has been paid more and more attention. As a coating with the function of long-lasting adsorption and trapping formaldehyde, it has attracted widespread attention. With the improvement of people's quality of life, while satisfying the functionalization and aesthetics of furniture and office supplies, new expectations are raised for the environmental protection performance of coatings used in furniture! It is expected to endow the coating with environmental self-cleaning and environmental protection, so as to improve the quality of people's living environment. The wood sealer primer with formaldehyde capture function is used as...

Claims

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Application Information

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IPC IPC(8): C08F220/60C08F220/18C08F220/14C08F212/08C09D7/12C09D101/18C09D175/04C09D133/00C09D163/00
Inventor 王正平井靖怡梁慧莹麦诗欣陈泳深石圆圆
Owner GUANGZHOU UNIVERSITY
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