Artwork with modified urea-formaldehyde resin as adhesive and preparing method thereof

A technology of urea-formaldehyde resin and adhesive, applied in the direction of aldehyde/ketone condensation polymer adhesive, process for producing decorative surface effect, adhesive, etc., can solve problems such as shrinkage, deformation and cracking, reduce shrinkage, improve Appreciation of art, improvement of cracking effect

Inactive Publication Date: 2007-08-08
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a handicraft using modified urea-formaldehyde resin as an adhesive to improve the shrinkage, deformation and cracking of urea-formaldehyde resin-based handicrafts by modifying urea-formaldehyde resin and its production method

Method used

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  • Artwork with modified urea-formaldehyde resin as adhesive and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1, the preparation of modified acrylic acid, sodium acrylate, N, N-dimethylaminopropyl methacrylamide copolymer:

[0026] 1) Take 10g of acrylic acid and neutralize it with 3.33g of sodium hydroxide in an ice bath, and the neutralization degree is about 60%, to obtain a solution ①; 2) Take 10g of N, N-dimethylaminopropyl methacrylamide and add it to the above solution ① , then add 443g of distilled water to make an aqueous solution with a mass fraction of about 5% ②; 3) add 0.1167g of ammonium persulfate to the above aqueous solution ② as an initiator, and react at a constant temperature of 65°C for 4 hours under stirring to obtain acrylic acid and sodium acrylate , N, N-dimethylaminopropyl methacrylamide copolymer aqueous solution ③; 4) get 100g 30% polyethylene glycol 6000 aqueous solution and 100g 5% polyvinyl alcohol 1792 aqueous solution, and blend uniformly to obtain aqueous solution ④; 5 ) Take 300g of aqueous solution ③ and 100g of aqueous solution ④ and bl...

Embodiment 2

[0033] Example 2: Change the amount of PE fiber to 1.0 g, and the rest are the same as in Example 1. The measurement results of impact strength, cracking and warpage and other properties are shown in Table 2.

Embodiment 3

[0035]Step 1, the preparation of modified acrylic acid, sodium acrylate, N,N-dimethylaminopropyl methacrylamide copolymer: 1) get 10g acrylic acid and neutralize in ice bath with 4.44g sodium hydroxide, neutralization degree About 80% to obtain solution ①; 2) Add 10g N, N-dimethylaminopropyl methacrylamide to the above solution ①, and then add 220g distilled water to make an aqueous solution with a mass fraction of about 10% ②; 3) Add 0.1222g of ammonium persulfate to the above aqueous solution ② as an initiator, and react at a constant temperature of 85°C for 3 hours under stirring to obtain an aqueous solution of acrylic acid, sodium acrylate, N,N-dimethylaminopropyl methacrylamide copolymer ③; 4 ) take 50g of 20% polyethylene glycol 6000 aqueous solution and 50g of 10% polyvinyl alcohol 1792 aqueous solution, and blend them uniformly to obtain an aqueous solution ④; Modified acrylic acid, sodium acrylate, N, N-dimethylaminopropyl methacrylamide copolymer (anti-shrinkage age...

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Abstract

The invention discloses a binder and making method of modified urea-formaldehyde resin, which comprises the following steps: adopting urea-formaldehyde resin, fill, reinforcer, deoxidation agent, formaldehyde catching agent, anti-aging agent, anti-shrinking agent, hardener and auxiliary reinforcer; adopting modified copolymer of acrylic acid, sodium acrylate, N, N-dimethylamino propyl methyl acrylamide as anti-shrinking agent; making polyacrylamide solution reacted by acrylamide and ammonium persulphate as formaldehyde catching agent; allocating each component according to proportion; blending evenly; casting; extracting into vacuum; stripping; stewing; drying naturally; coating a layer of polymethacrylate paint on the surface of product; proceeding colorful paint; obtaining the product.

Description

technical field [0001] The invention relates to a method for making a handicraft, in particular to a handicraft using urea-formaldehyde resin with low formaldehyde content as an adhesive and a method for making the handicraft. Background technique [0002] The raw materials used in the production of resin handicrafts are mainly stone, bamboo, wood, gypsum, resin, etc. Most of the resins used in resin handicrafts are unsaturated polyester or a small part of epoxy resin, etc., and urea-formaldehyde resin is rarely used . Wang Meigui (Wang Meigui. Journal of Tianjin Institute of Light Industry, 1998, 1) introduced the curing principle and production process of imitation crystal handicrafts made of unsaturated polyester, the raw materials used in the production process, production steps, formula control and attention The problem. Pan Yanfeng (Pan Yanfeng. SME Technology, 2000, 2) introduced the use of unsaturated polyester to imitate cloisonne crafts, which is essentially diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/24B44C1/28B44C3/12C09D133/04
Inventor 戴李宗雷光财许一婷陈哲欣陈江枫
Owner XIAMEN UNIV
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