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Inflaming retarding wood-plastic composite board and manufacturing method

A manufacturing method, technology of composite panels, applied in the direction of flat products, woodworking appliances, household components, etc.

Active Publication Date: 2013-03-20
GUANGXI FENGLIN WOOD IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, wood-plastic composite materials have fire safety hazards, which limit its market application scope and fields to a considerable extent.

Method used

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  • Inflaming retarding wood-plastic composite board and manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Raw material weight ratio:

[0040] Weigh raw materials, 600 kg of wood fiber powder with a moisture content of 4.0%, powdered plastic with a mesh number of 100 (waste plastic recycling, storage, cleaning, drying, and crushing) 200 kg, powdered flame-retardant with a mesh number of 100 Agent (40 kg amidinourea phosphate, 10 kg borax, mix evenly) 50 kg, silane coupling agent (KH550 type) 1 kg, catalyst (30% maleic anhydride solution) 1 kg.

[0041] 2. Mix and stir the above-mentioned wood fiber powder, powdery plastic, and powdery flame retardant according to the mass ratio, then spray the silane coupling agent and catalyst uniformly and slowly in the above-mentioned mixture by spraying and stir evenly at a high speed. The uniformly stirred mixture is dried to a moisture content of 5.0% before paving, and pre-pressed into a slab under a pressure of 4-6Mpa. After the slab is transported to the wood-based panel hot press, the hot pressing is completed under the process...

Embodiment 2

[0044] 1. Weigh raw materials, 700 kg of dry wood fiber powder with a moisture content of 7.0%, 300 kg of powdered plastic with a mesh number of 250, and a powdered flame retardant with a mesh number of 250 (64.3 kg of amidinourea phosphate, 10.7 kg of borax kg, mix well) 75 kg, silane coupling agent (KH560 type) 5.5 kg, 40% maleic anhydride solution 5.5 kg.

[0045] 2. Mix and stir the above-mentioned wood fiber powder, powdery plastic, and powdery flame retardant according to the mass ratio, then evenly spray the silane coupling agent and catalyst on the above-mentioned mixture and stir evenly at high speed. The evenly stirred mixture is dried to a moisture content of 7.5% before paving, and pre-pressed into a slab under a pressure of 4-6Mpa. After the slab is transported to the wood-based panel hot press, the hot pressing is completed under the process parameters of a temperature of 180~195°C, a pressure of 18-20MPa in the high pressure section, and a time of 10s; a pressur...

Embodiment 3

[0048] 1. Take raw materials, 800 kilograms of wood fiber powder with a moisture content of 10.0%, 400 kilograms of powdered plastics with a mesh number of 400,

[0049] 400-mesh powdered flame retardant (88.9 kg of amidinourea phosphate, 11.1 kg of borax, mixed evenly) 100 kg,

[0050] Silane coupling agent (KH550, KH560 and KH570 mixed) 10 kg, 50% maleic anhydride solution 10 kg.

[0051] 2. Mix and stir the above-mentioned wood fiber powder, powdery plastic, and powdery flame retardant according to the mass ratio, then evenly spray the silane coupling agent and catalyst on the above-mentioned mixture and stir evenly at high speed. The uniformly stirred mixture is dried to a moisture content of 10.0% before paving, and pre-pressed into a slab under a pressure of 4-6Mpa. After the slab is transported to the wood-based panel hot press, the hot pressing is completed under the process parameters of a temperature of 180~195°C, a pressure of 18-20MPa in the high pressure sect...

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Abstract

The invention discloses an inflaming retarding wood-plastic composite board and manufacturing method. The raw materials of the inflaming retarding wood-plastic composite board comprise, by weight, wood fiber power from 60.0% to 80.0%, powdery plastic from 20.0% to 40.0%, powdery fire retardant from 5.0% to 10.0%, silane coupling agent from 0.1% to 1.0% and catalyst from 0.1% to 1.0%. The preparation method of the inflaming retarding wood-plastic composite board includes evenly mixing the raw materials in proportion, suppressing and forming a novel wood-plastic composite board through high temperature and high pressure copolymerization of an artificial board hot press. Flame retardant property of products can meet the requirement of inflaming retarding C grade or inflaming retarding B grade in the standard of GB8624-2006 'building materials and products combustion performance grading'. Physical and mechanical properties can meet the requirement stipulated in GB / T11718-2009. The inflaming retarding wood-plastic composite board has the advantages of being large in breadth size of boards, high in mechanical strength, efficient in fireproofing and flame retardant property, non-toxic and environment-friendly, simple in production, convenient to manufacture, high in efficiency and the like. Fiber board production enterprises can meet the requirement of the manufacturing technique.

Description

technical field [0001] The invention belongs to the technical field of wood-based panel production. In particular, a flame-retardant wood-plastic composite board and a manufacturing method thereof. Background technique [0002] Wood-plastic composite material is a new type of composite material, which is a building material formed by extruding and pressing plastic and wood fibers in a certain proportion. It is also called plastic wood, environmentally friendly wood, technical wood, recycled wood, plastic beauty wood or WPC (Wood-Plastic Composites). It not only maintains the appearance and feel of solid wood flooring, but also has good moisture-proof, water-proof, acid and alkali resistance, anti-fungal, anti-static, anti-moth and other properties, and has the advantages of wood and plastic. The emergence of wood-plastic composite materials makes the resources more fully and efficiently utilized, and reduces the environmental pollution caused by waste plastics. At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/08
Inventor 龙慈明林国利詹满军韦淇峰陆奕岚
Owner GUANGXI FENGLIN WOOD IND GRP CO LTD
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