CN110317466A - Fire-retardant mould proof bamboo-plastic plate of one kind and preparation method thereof - Google Patents
Fire-retardant mould proof bamboo-plastic plate of one kind and preparation method thereof Download PDFInfo
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- CN110317466A CN110317466A CN201910723782.4A CN201910723782A CN110317466A CN 110317466 A CN110317466 A CN 110317466A CN 201910723782 A CN201910723782 A CN 201910723782A CN 110317466 A CN110317466 A CN 110317466A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention provides a kind of fire-retardant mould proof bamboo-plastic plates and preparation method thereof, and the raw material of the fire-retardant mould proof bamboo-plastic plate includes: 25 parts of polyethylene, 65 parts of bamboo powder, 15 parts of rice hulls, 5 parts of halogen antimony fire retardant, 2 parts of compound preservative, 1-1.5 parts of talcum powder, 0.5 part of maleic anhydride, 10 parts of silane coupling agent, 0.5 part of soda ash, 3 parts of colorant by weight.Fire-retardant mould proof bamboo-plastic plate of the invention, it is low in cost, and there is excellent fire-retardant fungicidal properties, market prospects are big.
Description
Technical field
Present invention relates particularly to a kind of fire-retardant mould proof bamboo-plastic plates and preparation method thereof.
Background technique
In recent years, ecological environmental protection is forbidden excessive and random lumbering forest by the Chinese government, and strictly limitation is raw using wildwood
Timber products are produced, provide opportunity for the development of bamboo industry, bamboo industry plays more in terms of promoting mountainous area economic development
Carry out more important role, bamboo processing scale also gradually expands, using honest and clean as raw material using leftover bits and pieces such as bamboo branch, bamboo head, bamboo scraps
Valence, renewable, degradable bamboo-plastic composite material have the characteristics that at low cost, performance is excellent, with it is environmental-friendly, mechanical strength is higher than
Wood plastic composite is the material resources of another New Cycle regeneration after wood plastic composite, is conducive to fill
Dividing using bamboo processing enterprise leftover bits and pieces resource is implementation the characteristics of two kinds of materials are utilized by plastics and bamboo fibre composite
The mutual supplement with each other's advantages of material provides a variety of choosings since bamboo-plastic composite material surface can add various colors for construction material decoration
It selects.
Research shows that bamboo-plastic composite material has the following problems；
1. the draw ratio due to bamboo fibre is excessive, when preparing composite material, material fluidity is poor, and method for processing forming is limited, one
As in the case of can only be processed using die pressing, without can be carried out the processing of widely used extrusion, while using die pressing
The composite material apparent property of preparation is poor, limits its application.
2. the interface compatibility of bamboo fibre and polyethylene (PE) is poor.Bamboo fibre has a large amount of hydrophilic radical and abundant
Pore structure, to moisture especially liquid water almost without resilience, phenomena such as easily leading to deformation, crack, and polyethylene
(PE) plastics have hydrophobicity, so that the interfacial wettability and adhesiveness of two kinds of storerooms are very poor.
3. the pH value of bamboo wood is weakly acidic.Between dry single fiber easily wad a quilt with cotton the group of being polymerized to, lead to the dispersing uniformity of fiber
It is poor with the mobility of compound system, influence the performance of composite material.
4. the content of soluble starch is 2%~6% in bamboo wood, protein content is 1.5%~6%, and fat content is 2%~4%.Bamboo
Material is highly prone to insect pest and the influence of mould in use.
Summary of the invention
The purpose of the present invention is to provide a kind of fire-retardant mould proof bamboo-plastic plate and preparation method thereof, bamboo-plastic plate tool obtained
Have low water absorption (waterproof), it is not easy to crack, will not be mouldy, it is anti-aging, insect pest is refused, easy to install, low-maintenance, without painting, anti-UV,
The advantages that anti-skidding.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of fire-retardant mould proof bamboo-plastic plate, the raw material of the fire-retardant mould proof bamboo-plastic plate include: by weight 25 parts of polyethylene,
65 parts of bamboo powder, 15 parts of rice hulls, 5 parts of halogen antimony fire retardant, 2 parts of compound preservative, 1-1.5 parts of talcum powder, maleic anhydride 0.5
Part, 10 parts of silane coupling agent, 0.5 part of soda ash, 3 parts of colorant；The compound preservative by Bravo, pyrethrins by weight
1:2 composition.
The bamboo powder is prepared by bamboo branch or bamboo head leftover bits and pieces, and bamboo branch or bamboo head leftover bits and pieces are specifically transported to high temperature
High pressure carbonizes in pot, and charing process 50 minutes at 150 DEG C of 0.4 MPa temperature of steam pressure, the bamboo wood that will have been carbonized is transported to baking
Dry furnace is dry to moisture content < 5% drying and processing 96-120 hours at 55 DEG C, by the bamboo leftover bits and pieces for carbonizing, having dried smash to
80-100 mesh, obtains bamboo powder.
The bamboo powder the preparation method comprises the following steps: bamboo fell --- cleaning and sterilizing (50%H2O2+50%H2O, 80 DEG C/8h) ---
Naturally dry (naturally dry 48-56 hours) --- broken (crusher) --- level-one crushes (beater grinder) --- hair
Bamboo scraps are covered thermal insulation material and stacked 28 ~ 30 days by ferment, keep moisture content 12 ~ 14% --- and second level crushes (beater grinder, heating
150 DEG C of 9% or less control moisture content of air) --- sieving (100-120 mesh).
A kind of preparation method of fire-retardant mould proof bamboo-plastic plate, comprising the following steps:
(1) rice hulls are smashed to 80-100 mesh；
(2) bamboo powder is added in high mixer, adds soda ash, be uniformly mixed, smashed rice hulls and polyethylene is then added,
Be warming up to 110 DEG C, 2800 revs/min mixed at high speed 8 minutes, it is sufficiently dry, then by halogen antimony fire retardant, compound preservative, coloring
Agent, maleic anhydride, talcum powder, silane coupling agent are added in high mixer, are warming up to 120 DEG C, 2800 revs/min of mixed at high speed 10
Minute；
(3) it is lowered to mixed on low speed after the completion of mixed at high speed, 95 DEG C of mixed on low speed modification temperature, 800 revs/min of mixing speed,
Mixed on low speed 15 minutes；
(4) pellet is sucked into barrel with automatic suction machine and is dried to over dry at 150 DEG C, squeezed out by single screw extrusion machine, head
Temperature is 155 ~ 160 DEG C；
(5) pellet squeezed out obtains fire-retardant mould proof bamboo-plastic plate through molding, cooling and shaping.
The present invention has the advantages that
(1) bamboo leftover bits and pieces charing process be bamboo wood is placed in high temperature, high humidity, high pressure environment in, make the organic compound in bamboo wood
Object, such as sugar, starch, breaks down proteins denaturation, make moth and mould lose source of nutrition, while making the worm's ovum being attached in bamboo wood
And fungi is killed, soluble starch, protein charing, effectively solve bamboo-plastic composite material insect pest and mould problems in bamboo wood.
The purpose of fermentation is the organic compound made in bamboo wood, such as sugar, starch, breaks down proteins denaturation, and moth and mould is made to lose battalion
Support source.
(2) rice hulls increase the surface hardness of bamboo-plastic composite material；
(3) since the pH value of bamboo wood is weakly acidic, soda ash, which is added, to be helped to improve the processing performance of material, solves drying very well
Bamboo fibre between easily wadding be polymerized to clique problem, also, the faintly acid that soda ash has neutralized bamboo wood is added, improves the addition ratio of bamboo powder
Example, has saved cost；
(4) since electrostatic easily occurs for plastics, bamboo powder, agglomeration of especially easily uniting under the action of fricting shearing is not easy to disperse.With
Talcum powder cladding bamboo powder can prevent electrostatic, so that bamboo powder is uniformly dispersed, and talcum powder can increase the mobility of bamboo powder, help
In the processing performance for improving material.
(5) pyrethrins is low toxic pesticide, to the pollution very little of environment.
(6) bamboo powder is put into high mixer, is warming up to 110 DEG C, 10min, sufficiently dry.Moisture is discharged with gas vent, will be even
Connection agent is added in dry bamboo powder in high mixer, is warming up to 120 DEG C, is uniformly mixed, the reaction for hydrolyzing to form coupling agent
Group is sufficiently reacted with the polar group on bamboo powder surface.
1, the characteristic of the bamboo-plastic plate of the present invention
Low water absorption (waterproof), it is not easy to crack, will not be mouldy, it is anti-aging, insect pest is refused, easy to install, low-maintenance resists without japanning
UV, it is anti-skidding.
2, the advantage of the bamboo-plastic plate of the present invention
1) with natural look, the texture of bamboo wood；
2) than bamboo and wood material good stability of the dimension, no bamboo wood section basketry；
3) will not crack, lift up it is bent, be unlikely to deform, product can be made into various shapes, and surface is not necessarily to upper protective paint, but can also be according to
User's hobby, paints any color liked；
4) outdoor log does anti-corrosion immersion treatment, because of the requirement of service life to resist termite and its before must installing after dicing
The anticorrosive wood of its microbiologic(al) corrosion, existing market will be corroded using 5 years, and log is after client's use, it will usually
Hypertoxic (preservative) is just released in a short time, cause human contact and flows into soil, forms secondary environmental pollution and human body harm.
5) bamboo-plastic plate is not necessary to reduce structural capacity because rotten after worrying many years, causes risk factor, service life of the products
Up to 50 years or more.
6) construction and installation are extremely simple, can be cut, be drilled using most common wood working tool, plane etc..
3, other aspects compare
1) volume of timber difference: one ton of bamboo floor moulding material of hollow structure is about 1.3-1.9m3(30-50m2), it can be connect with the volume of timber
Nearly 100%；The round log of common wood can be with the volume of timber less than 60%, and the lumps of wood is only up to 80% or so.
2) service life: the service life of bamboo-plastic plate of the invention can reach 50 years, external at present to report bamboo-plastic material
Service life is 15-25；And at present using the domestic not specially treated common wood open air product service life used
General super only 3 years.
3) price compares: price is 6000 yuan/m3 or so after the market price of bamboo-plastic manufactured goods is converted by specific gravity, volume；
And the lumber market price of medium material is in 4000-6000 member/m3 or so at present.If being calculated with profile, bamboo-plastic domestic quotation is most
A height of 300 yuan/m2, and wood section bar is generally offered also in 300 yuan of m2 or more.But service life Comprehensive Correlation is pressed, timber floor adds
The paint and labour cost of upper maintenance, annual to need 120 Yuan/㎡, bamboo-plastic floorboard was calculated according to minimum 10 years use standards,
Often being only needs 30 yuan/㎡.
4) environmental evaluation: by taking preserving timber as an example, now the biggest problems are that harm to environment and human body, at present in
The country, state is very few using the enterprise of ICQ technology (i.e. low toxic anti-corrosion), and most of products export is external；Using CCA skill
The product of art (i.e. harmfulness anti-corrosion) is increasingly restricted, for example the U.S. is just forbidden to use the preserving timber using CCA technology.
And fitted up using Wood-plastic material, then it fully achieves " zero-time moves in ", realizes environmentally protective purpose, to the negative of environment
It influences almost nil.
Specific embodiment
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below elaborates.This hair
Bright method is conventional method in that art unless otherwise specified.
Embodiment 1
A kind of fire-retardant mould proof bamboo-plastic plate, the raw material of the fire-retardant mould proof bamboo-plastic plate include: by weight 25 parts of polyethylene,
65 parts of bamboo powder, 15 parts of rice hulls, 5 parts of halogen antimony fire retardant, 2 parts of compound preservative, 1 part of talcum powder, 0.5 part of maleic anhydride, silicon
10 parts of alkane coupling agent, 0.5 part of soda ash, 3 parts of colorant；The compound preservative is by Bravo, pyrethrins by weight 1:2 group
At.
The bamboo powder is prepared by bamboo head leftover bits and pieces, and bamboo head leftover bits and pieces is specifically transported to high temperature and pressure charing pot
In, charing process 50 minutes at 150 DEG C of 0.4 MPa temperature of steam pressure, the bamboo wood that will have been carbonized is transported to drying oven at 55 DEG C
Lower drying and processing 120 hours, it is dry to moisture content < 5%, the bamboo leftover bits and pieces for carbonizing, having dried is smashed to 80 mesh, bamboo powder is obtained.
A kind of preparation method of fire-retardant mould proof bamboo-plastic plate, comprising the following steps:
(1) rice hulls are smashed to 80 mesh；
(2) bamboo powder is added in high mixer, adds soda ash, be uniformly mixed, smashed rice hulls and polyethylene is then added,
Be warming up to 110 DEG C, 2800 revs/min mixed at high speed 8 minutes, it is sufficiently dry, then by halogen antimony fire retardant, compound preservative, coloring
Agent, maleic anhydride, talcum powder, silane coupling agent are added in high mixer, are warming up to 120 DEG C, 2800 revs/min of mixed at high speed 10
Minute；
(3) it is lowered to mixed on low speed after the completion of mixed at high speed, 95 DEG C of mixed on low speed modification temperature, 800 revs/min of mixing speed,
Mixed on low speed 15 minutes；
(4) pellet is sucked into barrel with automatic suction machine and is dried to over dry at 150 DEG C, squeezed out by single screw extrusion machine, head
Temperature is 155 DEG C；
(5) pellet squeezed out obtains fire-retardant mould proof bamboo-plastic plate through molding, cooling and shaping.
Embodiment 2
A kind of fire-retardant mould proof bamboo-plastic plate, the raw material of the fire-retardant mould proof bamboo-plastic plate include: by weight 25 parts of polyethylene,
65 parts of bamboo powder, 15 parts of rice hulls, 5 parts of halogen antimony fire retardant, 2 parts of compound preservative, 1.5 parts of talcum powder, 0.5 part of maleic anhydride,
10 parts of silane coupling agent, 0.5 part of soda ash, 3 parts of colorant；The compound preservative is by Bravo, pyrethrins by weight 1:2
Composition.
The bamboo powder the preparation method comprises the following steps: bamboo fell --- cleaning and sterilizing (50%H2O2+50%H2O, 80 DEG C/8h) ---
--- broken (crusher) --- level-one crushes (beater grinder) --- fermentation will for naturally dry (naturally dry 48 hours)
Bamboo scraps cover thermal insulation material and stack 28 days, keep moisture content 12% --- and second level crushes (beater grinder, 150 DEG C of air of heating
Control 9% or less moisture content) --- sieving (100 mesh).
A kind of preparation method of fire-retardant mould proof bamboo-plastic plate, comprising the following steps:
(1) rice hulls are smashed to 100 mesh；
(2) bamboo powder is added in high mixer, adds soda ash, be uniformly mixed, smashed rice hulls and polyethylene is then added,
Be warming up to 110 DEG C, 2800 revs/min mixed at high speed 8 minutes, it is sufficiently dry, then by halogen antimony fire retardant, compound preservative, coloring
Agent, maleic anhydride, talcum powder, silane coupling agent are added in high mixer, are warming up to 120 DEG C, 2800 revs/min of mixed at high speed 10
Minute；
(3) it is lowered to mixed on low speed after the completion of mixed at high speed, 95 DEG C of mixed on low speed modification temperature, 800 revs/min of mixing speed,
Mixed on low speed 15 minutes；
(4) pellet is sucked into barrel with automatic suction machine and is dried to over dry at 150 DEG C, squeezed out by single screw extrusion machine, head
Temperature is 160 DEG C；
(5) pellet squeezed out obtains fire-retardant mould proof bamboo-plastic plate through molding, cooling and shaping.
The performance of fire-retardant mould proof bamboo-plastic plate produced by the present invention is as shown in the table:
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with repair
Decorations, are all covered by the present invention.
Claims (5)
1. a kind of fire-retardant mould proof bamboo-plastic plate, which is characterized in that the raw material of the fire-retardant mould proof bamboo-plastic plate wraps by weight
It includes: 25 parts of polyethylene, 65 parts of bamboo powder, 15 parts of rice hulls, 5 parts of halogen antimony fire retardant, 2 parts of compound preservative, talcum powder 1-1.5
Part, 0.5 part of maleic anhydride, 10 parts of silane coupling agent, 0.5 part of soda ash, 3 parts of colorant.
2. the fire-retardant mould proof bamboo-plastic plate of one kind according to claim 1, which is characterized in that the bamboo powder is by bamboo branch or bamboo
Head leftover bits and pieces is prepared, and specifically bamboo branch or bamboo head leftover bits and pieces is transported in high temperature and pressure charing pot, in steam pressure 0.4
Charing process 50 minutes, the bamboo wood that will have been carbonized at 150 DEG C of MPa temperature are transported to drying oven drying and processing 96-120 at 55 DEG C
Hour, it is dry to moisture content < 5%, the bamboo leftover bits and pieces for carbonizing, having dried is smashed to 80-100 mesh, bamboo powder is obtained.
3. the fire-retardant mould proof bamboo-plastic plate of one kind according to claim 1, which is characterized in that the bamboo powder is prepared by bamboo scraps
It obtains, bamboo scraps is specifically covered into thermal insulation material and stack 28 ~ 30 days progress fermentation process, moisture content 12 ~ 14% is kept, then exists
It dries at 150 DEG C to moisture content and is lower than 9%, crushed 100-120 mesh and obtain.
4. the fire-retardant mould proof bamboo-plastic plate of one kind according to claim 1, which is characterized in that the compound preservative is by hundred bacterium
Clearly, pyrethrins is formed by weight 1:2.
5. the preparation method of the fire-retardant mould proof bamboo-plastic plate of one kind according to claim 1, which is characterized in that including following step
It is rapid:
(1) rice hulls are smashed to 80-100 mesh；
(2) bamboo powder is added in high mixer, adds soda ash, be uniformly mixed, smashed rice hulls and polyethylene is then added,
Be warming up to 110 DEG C, 2800 revs/min mixed at high speed 8 minutes, it is sufficiently dry, then by halogen antimony fire retardant, compound preservative, coloring
Agent, maleic anhydride, talcum powder, silane coupling agent are added in high mixer, are warming up to 120 DEG C, 2800 revs/min of mixed at high speed 10
Minute；
(3) it is lowered to mixed on low speed after the completion of mixed at high speed, 95 DEG C of mixed on low speed modification temperature, 800 revs/min of mixing speed,
Mixed on low speed 15 minutes；
(4) pellet is sucked into barrel with automatic suction machine and is dried to over dry at 150 DEG C, squeezed out by single screw extrusion machine, head
Temperature is 155 ~ 160 DEG C；
(5) pellet squeezed out obtains fire-retardant mould proof bamboo-plastic plate through molding, cooling and shaping.
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| CN201910723782.4A CN110317466A (en) | 2019-08-07 | 2019-08-07 | Fire-retardant mould proof bamboo-plastic plate of one kind and preparation method thereof |
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| CN201910723782.4A CN110317466A (en) | 2019-08-07 | 2019-08-07 | Fire-retardant mould proof bamboo-plastic plate of one kind and preparation method thereof |
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