Antibacterial odor-free impregnated paper and preparation method thereof

A technology of impregnating paper and deodorizing, which is applied in the field of impregnating paper, which can solve the problems of brittleness and easy cracking, and achieve the effect of improving strength, reducing content and improving dispersibility

Pending Publication Date: 2021-10-01
GUANGDONG FUMEI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, melamine formaldehyde resin is brittle and easy to crack after curing, and as a home decoration product, the harmfulness of formaldehyde volatilization has increasingly become one of the key concerns

Method used

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  • Antibacterial odor-free impregnated paper and preparation method thereof
  • Antibacterial odor-free impregnated paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for antibacterial and deodorant impregnated paper, comprising the steps of:

[0025] (1) Preparation of impregnation glue: add 6 weight parts of polyvinyl alcohol and 15 weight parts of activated carbon powder to the polyvinyl acetate emulsion of 30 weight parts and carry out ultrasonic mixing to obtain a modified liquid; Add an alkaline regulator to 37% formaldehyde aqueous solution, adjust the pH value to 9.0 and heat up to 45°C, then add 35 parts by weight of melamine and 45 parts by weight of urea, heat up to 95°C, keep warm for 40 minutes, then add an acidic regulator to adjust pH value to 6.0, heat preservation reaction for 15 minutes, add modified solution and stir evenly, heat preservation reaction for 35 minutes, add alkaline regulator, adjust pH value to 8.5, then add 20 parts by weight of melamine, continue heat preservation reaction for 60 minutes, cool down to 45°C, Add 6.5 parts by weight of urea, keep warm for 15 minutes, drop to norm...

Embodiment 2

[0035] A preparation method for antibacterial and deodorant impregnated paper, comprising the steps of:

[0036] (1) Preparation of impregnation glue: add 5 weight parts of polyvinyl alcohol and 10 weight parts of activated carbon powder to the polyvinyl acetate emulsion of 25 weight parts and carry out ultrasonic mixing to obtain modified liquid; Add an alkaline regulator to 35% formaldehyde aqueous solution, adjust the pH value to 8.5 and heat up to 40°C, then add 30 parts by weight of melamine and 40 parts by weight of urea, heat up to 90°C, keep warm for 30 minutes, then add an acidic regulator to adjust pH value to 5.5, heat preservation reaction for 10 minutes, add modified solution and stir evenly, heat preservation reaction for 30 minutes, add alkaline regulator, adjust pH value to 8.0, then add 15 parts by weight of melamine, continue heat preservation reaction for 50 minutes, cool down to 40°C, Add 5 parts by weight of urea, keep warm for 10 minutes, drop to normal t...

Embodiment 3

[0046] A preparation method for antibacterial and deodorant impregnated paper, comprising the steps of:

[0047] (1) Preparation of impregnation glue: add polyvinyl alcohol of 7 weight parts and the active carbon powder of 20 weight parts in the polyvinyl acetate emulsion of 35 weight parts and carry out ultrasonic mixing, make modified liquid; Add an alkaline regulator to 40% formaldehyde solution, adjust the pH value to 9.5 and heat up to 50°C, then add 40 parts by weight of melamine and 50 parts by weight of urea, heat up to 95°C, keep warm for 50 minutes, then add an acidic regulator to adjust pH value to 6.0, heat preservation reaction for 20 minutes, add modified solution and stir evenly, heat preservation reaction for 40 minutes, add alkaline regulator, adjust pH value to 9.0, then add 25 parts by weight of melamine, continue heat preservation reaction for 60 minutes, cool down to 50°C, Add 8 parts by weight of urea, keep warm for 20 minutes, drop to normal temperature,...

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Abstract

The invention relates to the technical field of impregnated paper, in particular to antibacterial odor-free impregnated paper and a preparation method thereof. According to the impregnated paper, an alkali-acid-alkali synthesis technology is adopted, formaldehyde and urea react under the alkaline condition to generate polyhydroxymethyl urea, melamine and formaldehyde react to generate polyhydroxymethyl melamine, and then under the acidic condition, polymethylol urea and polymethylol melamine are subjected to condensation polymerization, so that a large number of hydroxyl groups are consumed to form a large number of ether bonds and methylene bonds, the water resistance and flexibility of the synthetic resin are improved, and the content of free formaldehyde is reduced. Besides, during synthesis under an acidic condition, activated carbon powder, polyvinyl acetate emulsion and polyvinyl alcohol are added for modification, and the activated carbon powder can adsorb formaldehyde gas generated by the impregnated adhesive layer, so that the effect of slowly releasing the formaldehyde gas is achieved, and the long-acting odor removal effect is achieved.

Description

technical field [0001] The invention relates to the technical field of impregnated paper, in particular to an antibacterial and deodorizing impregnated paper and a preparation method thereof. Background technique [0002] The impregnated paper is mainly made of specially produced base paper, which is impregnated with synthetic resin and then dried. It is covered on the base material of the wood-based panel and bonded by heat to form a decorative surface paper, which improves the aesthetics of the wood-based panel. At present, the commonly used synthetic resins for impregnating adhesives are mainly phenolic resins, urea-formaldehyde resins and melamine-formaldehyde resins, among which melamine-formaldehyde resins have become the most common and widely used impregnating resins in the market due to their high cost performance. However, melamine formaldehyde resin is brittle and easy to crack after curing, and as a home decoration product, the harmfulness of formaldehyde volatil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/36C08G12/38
CPCD21H21/36C08G12/38
Inventor 袁若堂赵海波李英袁艺宁
Owner GUANGDONG FUMEI NEW MATERIAL TECH CO LTD
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