Smoke-suppressing flame-retardant wood composite material and preparation method thereof

A composite material and flame-retardant technology, which is applied in the field of smoke-suppressing and flame-retardant wood composite materials and its preparation, can solve the problems of wood composite materials such as reduced mechanical properties, generation of toxic and harmful gases, and unfavorable popularization and application, so as to reduce smoke release The effect of reducing the concentration of toxic and harmful gases

Pending Publication Date: 2021-11-30
桃江县大丰木业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current wood composite materials mostly use plant fillers (wood, bamboo) and plastic fillers to compound. However, due to the poor compatibility between plant fillers and plastic fillers, the mechanical properties of wood composite materials will be reduced, which limits its application. On the other hand, plastic fillers are easier Combustion, and combustion will produce toxic and harmful gases, which is even more unfavorable for its promotion and application

Method used

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  • Smoke-suppressing flame-retardant wood composite material and preparation method thereof
  • Smoke-suppressing flame-retardant wood composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A smoke-suppressing and flame-retardant wood composite material, comprising the following ingredients in parts by weight:

[0026] 50 parts of modified wood powder, 25 parts of phenolic resin / ammonium polyphosphate / molybdenum trioxide composite material, 15 parts of LDPE, LLDPE composition with a mass ratio of 1:1, 1 part of maleic anhydride grafted polyethylene, nanocellulose 5 parts, 2 parts of halloysite nanotubes, 0.1 part of dicumyl peroxide, antioxidant 1010, and 0.1 part of antioxidant composed of polyethylene wax in a mass ratio of 1:1.

[0027] Wherein, the preparation method of modified wood flour is as follows:

[0028] Soak poplar wood powder with 3% sodium hydroxide solution for 20 minutes, filter out, wash until neutral, add to water, stir to make it evenly dispersed, then add potassium persulfate and sodium bisulfite according to the mass ratio Initiator and methyl methacrylate with a composition of 1:1, heated to 45°C, stirred and reacted for 100 minute...

Embodiment 2

[0034] A smoke-suppressing and flame-retardant wood composite material, comprising the following ingredients in parts by weight:

[0035] 60 parts of modified wood powder, 20 parts of phenolic resin / ammonium polyphosphate / molybdenum trioxide composite material, 10 parts of LDPE, LLDPE composition with a mass ratio of 1:1, 2 parts of maleic anhydride grafted polyethylene, nanocellulose 5 parts, 2 parts of halloysite nanotubes, 0.2 parts of dicumyl peroxide, antioxidant 1010, and 0.1 parts of antioxidant composed of polyethylene wax at a mass ratio of 1:1.

[0036] Wherein, the preparation method of modified wood flour is as follows:

[0037] Soak poplar wood powder with 5% sodium hydroxide solution for 10 minutes, filter out, wash until neutral, add to water, stir to make it evenly dispersed, then add potassium persulfate and sodium bisulfite according to the mass ratio Initiator and methyl methacrylate in a composition of 2:1, heated to 45°C and stirred for 120 minutes, filte...

Embodiment 3

[0043] A smoke-suppressing and flame-retardant wood composite material, comprising the following ingredients in parts by weight:

[0044] 60 parts of modified wood flour, 30 parts of phenolic resin / ammonium polyphosphate / molybdenum trioxide composite material, 20 parts of LDPE, LLDPE composition with a mass ratio of 1:1, 2 parts of maleic anhydride grafted polyethylene, nanocellulose 5 parts, 3 parts of halloysite nanotubes, 0.2 parts of dicumyl peroxide, antioxidant 1010, and 0.2 parts of antioxidant composed of polyethylene wax at a mass ratio of 1:1.

[0045]Wherein, the preparation method of modified wood flour is as follows:

[0046] Soak poplar wood powder with 5% sodium hydroxide solution for 30 minutes, filter out, wash until neutral, add to water, stir to make it evenly dispersed, then add potassium persulfate and sodium bisulfite according to the mass ratio Initiator and methyl methacrylate in a composition of 3:1, heated to 45°C and stirred for 120 minutes, filtere...

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Abstract

The invention relates to the field of building materials, in particular to a smoke-suppressing flame-retardant wood composite material and a preparation method thereof. The smoke-suppressing flame-retardant wood composite material is prepared from modified wood flour, a phenolic resin/ammonium polyphosphate/molybdenum compound composite material, polyethylene, maleic anhydride grafted polyethylene, nanocellulose, halloysite nanotubes, dicumyl peroxide and an antioxidant; The smoke-suppressing flame-retardant wood composite material is good in mechanical properties, excellent in fireproof and flame-retardant performance, long in ignition time, not prone to combustion and small in heat and smoke production during combustion, can be widely applied to the fields of home building materials and decoration and has excellent market application prospects.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a smoke-suppressing and flame-retardant wood composite material and a preparation method thereof. Background technique [0002] With the improvement of social development level and population growth, the demand for timber is increasing. However, as a country with unbalanced forest structure and scarce resources, the contradiction between supply and demand of timber resources has become increasingly prominent, and the shortage of timber supply has become a constraint for our country. The bottleneck of the development of the construction furniture industry, wood composite materials are made of wood (in various forms, including powder, fiber, veneer and shavings, etc.) Composite materials with a certain load or with certain specific properties. The biggest feature of wood composite materials is that they can not only maintain the characteristics of the original single component mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L61/06C08L23/06C08L23/08C08L51/06C08L1/02C08K3/32C08K7/26C08K5/14C08K3/22C08K13/04C08F289/00C08F220/14
CPCC08L51/00C08F289/00C08K2003/2255C08L2201/02C08L2207/066C08K2201/011C08K2003/323C08L61/06C08L23/06C08L23/0815C08L51/06C08L1/02C08K3/32C08K7/26C08K5/14C08K3/22C08K13/04C08F220/14
Inventor 詹建雄
Owner 桃江县大丰木业有限责任公司
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