Fiber wood with formaldehyde purification function and production method thereof

A formaldehyde purification and methyl cellulose technology, applied in the field of wood, can solve problems such as threats to people's health

Inactive Publication Date: 2016-07-13
南通长城装饰木制品制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the formaldehyde emission of common fiber wood in the market can meet the national standard requirements (in 2001, the state promulgated the "Limits of Formaldehyde Release in Interior Decoration Materials Wood-based Panels and Their Products" GB18580-200l, and the release of free formaldehyde is ≤ 1.5mg / L, can be used directly indoors, decoration materials with free formaldehyde emission ≤ 5.0mg / L must be decorated before being used indoors), but there are still harmful substances released, which are used in places such as home, office, and activities Decoration materials or supplies, such as floors, furniture, wallpapers, ceilings, wooden doors and windows, paints, etc. Although the release of harmful substances from each product will meet the national standard requirements, several decoration materials are used together in the same space to release pollutants together. The harmful substances that come out may greatly exceed the national standard, which will seriously threaten the health of the people

Method used

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  • Fiber wood with formaldehyde purification function and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1: Preparation of a kind of fiber wood with formaldehyde purification function

[0031] The ingredients include 80 parts of wood fiber, 40 parts of bamboo fiber, 4 parts of PVC powder, 2.5 parts of vinyltrimethoxysilane, 3.5 parts of methyl cellulose, 4 parts of sodium silicate, 4 parts of nano-calcium oxide, 10 parts of adhesive, 1 part of phenol polyoxyethylene ether, 4 parts of activated carbon powder, and 4 parts of modified zeolite powder;

[0032] The adhesive is a modified urea-formaldehyde resin, and its preparation method includes: 1) Put formaldehyde into the reactor at one time, add ammonia water to adjust the pH to 7.5, add polyvinyl alcohol and urea for the first time, heat up to 70°C, and keep warm for 60 minutes ;2) Add urea for the second time and melamine for the first time, heat up to 80°C, and keep warm for 50 minutes; 3) Add ammonia water to adjust pH=8.0, add melamine for the second time, keep warm at 85°C for 50 minutes; 4) Cool down to ...

Embodiment 2

[0040] Embodiment 2: Preparation of a kind of fiber wood with formaldehyde purification function

[0041]The ingredients include 65 parts of wood fiber, 25 parts of bamboo fiber, 2.5 parts of PVC powder, 1 part of vinyltrimethoxysilane, 4 parts of methyl cellulose, 3.5 parts of sodium silicate, 3 parts of nano calcium oxide, 6 parts of adhesive, nonyl 1.5 parts of base phenol polyoxyethylene ether, 3.5 parts of activated carbon powder, 4.5 parts of modified zeolite powder;

[0042] Others are the same as embodiment 1.

Embodiment 3

[0043] Embodiment 3: Preparation of a kind of fiber wood with formaldehyde purification function

[0044] The ingredients include 90 parts of wood fiber, 45 parts of bamboo fiber, 4.5 parts of PVC powder, 1.5 parts of vinyltrimethoxysilane, 4.5 parts of methyl cellulose, 4 parts of sodium silicate, 5 parts of nano calcium oxide, 14 parts of adhesive, 2 parts of base phenol polyoxyethylene ether, 5 parts of activated carbon powder, 4 parts of modified zeolite powder;

[0045] The adhesive is a commercially available modified urea-formaldehyde resin, and the modified zeolite is also a commercially available product;

[0046] Others are the same as embodiment 1.

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Abstract

The invention relates to fiber wood with a formaldehyde purification function and a production method thereof.The fiber wood comprises 60-100 parts of wood fibers, 20-50 parts of bamboo fibers, 2-5 parts of PVC (polyvinyl chloride) powder, 0.5-2 parts of vinyl trimethoxy silane, 3-5 parts of methylcellulose, 3-5 parts of sodium silicate, 3-5 parts of nano-calcium oxide, 5-15 parts of adhesive, 0.5-2 parts of nonylphenol polyoxyethylene ether, 3-5 parts of activated carbon powder and 3-5 parts of modified zeolite powder.The wood which is novel, environment-friendly man-made fiber wood contains the activated carbon powder and the modified zeolite powder with the formaldehyde purification function, so that formaldehyde emission of the wood is reduced; meanwhile, the wood has high mechanical strength, the board has good board processability as well as good elasticity modulus, and accordingly the wood can be widely applied to furniture and interior decoration.

Description

technical field [0001] The invention belongs to the technical field of wood and relates to a fibrous wood and a preparation method thereof, in particular to a fibrous wood with formaldehyde purification function and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people have put forward higher requirements for the decoration of their residences, offices, activities and other places. Not only are they required to be beautiful, trendy, natural and simple, but also healthy and environmentally friendly. At present, most of the fiberboards produced in my country use urea-formaldehyde resin, which is formed by mixing formaldehyde and urea in a certain molar ratio to form urea-formaldehyde resin. Free formaldehyde remains in the fiberboard board using ordinary urea-formaldehyde resin as adhesive, which is harmful to people's health. Formaldehyde has a stimulating effect on the nasal mucosa, retina, respiratory tract and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L61/32C08K13/06C08K9/02C08K3/34C08K3/04C08K3/22C08G12/40B29C51/46B29L7/00
CPCB29C51/46B29L2007/002C08G12/40C08K2201/011C08K2201/014C08L97/02C08L2205/025C08L2205/035C08L2205/16C08L61/32C08K13/06C08K9/02C08K3/34C08K3/04C08K2003/2206
Inventor 张春雷张国华包程程程益张岚张建泉
Owner 南通长城装饰木制品制造有限公司
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