CN108299760A - Photocatalyst and acid induction double-unit system remove the environment-friendly polyvinyl chloride foam wood/plastic composite material and preparation method thereof of VOC - Google Patents
Photocatalyst and acid induction double-unit system remove the environment-friendly polyvinyl chloride foam wood/plastic composite material and preparation method thereof of VOC Download PDFInfo
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- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C08J2203/18—Binary blends of expanding agents
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- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
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Abstract
Photocatalyst and acid induction double-unit system remove the environment-friendly polyvinyl chloride foam wood/plastic composite material and preparation method thereof of VOC, belong to polymer modification preparation and manufacture field, solve the problems, such as the volatile organic matter pollution room air that wood plastic product is distributed.The present invention counts in parts by weight：100 parts of polyvinyl chloride, 10~60 parts of inorganic filler, 10~50 parts of wood powder, 2~8 parts of compound stabilizer, 0.1~3 part of lubricant, 0~12 part of processing aid, 0~15 part of esters of acrylic acid foaming control agent, 1~10 part of formaldehyde catching agent, 0.3~1.5 part of foaming agent；It is prepared into wood plastic product after above-mentioned each material is mixed and in its surface titanium dioxide coating colloidal sol, obtains wood plastic composite after natural drying.The present invention have many advantages, such as decomposable asymmetric choice net pollutant, improve air environment, antibacterial, resistant is self-cleaning, at low cost, chemical stability is strong, intensity is high, acid-alkali-corrosive-resisting, soaking-resistant, fire-retardant.
Description
Technical field
The invention belongs to polymer modification preparation and processing technique fields, and in particular to a kind of photocatalyst and sour induction
Double-unit system removes environment-friendly polyvinyl chloride (PVC) foam wood/plastic composite material and preparation method thereof of VOC.
Background technology
According to the diversification of wood plastic product material, the characteristics such as flexibility, economic and practicalization are moulded, have been widely used in building
Field and indoor ornament materials etc., indoor application are concentrated mainly on ground, metope, ceiling, door and window, furniture etc..
In recent years, caused by the volatile organic matter (VOCs) that indoor decorating and refurnishing materials etc. are distributed the interior space pollution administer and
Control aspect has obtained widely paying attention in industry.Scientific research personnel also carries out control after pollutant and prevention and pollution
Relevant research, develops miscellaneous environment-friendly materials and purifier is applied in indoor decorating.
Photocatalyst is a kind of with the titanium dioxide semi-conducting material as main component with photo-catalysis function.China's light touches
Matchmaker's technical research was since 1998.University of Fuzhou prepares the photocatalyst composite catalyst of stable visible light activity and right for the first time
The incrustation of rare metal improve catalyst visible region photocatalytic activity.Beijing University of Technology, which slanders, learns red equal confirmation
Photochemical catalyst has the ability of purification harmful substance.At abroad, as nano-titanium dioxide is applied to ceramic tile by TOTO companies of Japan
In coating, in practice it has proved that its can the efficient oxidation be adsorbed on the Air Pollutants nitrogen oxides on surface, 1000 square meter uses are received
The ceramic tile of rice titanium dioxide is equivalent to the detergent power in 27 pieces of tennis courts greenery patches, can remove about 80 general car exhaust emissions
The amount of nitrogen oxides gone out.The report of Lawrence Berkeley National laboratory experiment shows that the titanium deoxide catalyst of high quality is every
It can handle the nitrogen oxides in 200 cubic metres of air, the volatile organic matter in 60 cubic metres of air per square meter.
Though summarizing domestic and international progress it is found that there are catalysis material removal NOx and VOC researchs both at home and abroad, there are no
Photocatalyst is applied to the report in environment-friendly polyvinyl chloride (PVC) foam wood/plastic composite material.
Invention content
In order to solve the problems, such as that the volatile organic matter that wood plastic product is distributed pollutes room air, the present invention provides a kind of
The purpose of the present invention is to provide a kind of coatings of photocatalyst outer layer and acid induction internal layer to fix the environmentally friendly polychlorostyrene second that double-unit system removes VOC
Alkene (PVC) foam wood/plastic composite material and preparation method thereof.
The present invention is that technical scheme applied to solve the technical problem is as follows：
The photocatalyst and acid induction double-unit system of the present invention remove the environment-friendly polyvinyl chloride foam wood/plastic composite material of VOC, according to
Parts by weight meter includes following component：
100 parts of polyvinyl chloride, 10~60 parts of inorganic filler, 10~50 parts of wood powder, 2~8 parts of compound stabilizer, lubricant
0.1~3 part, 0~12 part of processing aid, 0~15 part of esters of acrylic acid foaming control agent, 1~10 part of formaldehyde catching agent, foaming agent
0.3~1.5 part；
Will above-mentioned each material mix after be prepared into wood plastic product and in its surface titanium dioxide coating colloidal sol, after natural drying
Obtain wood plastic composite.
As preferred embodiment, the inorganic filler is in calcium carbonate, talcum powder, kaolin, diatomite
It is one or more.
Embodiment more preferably, the inorganic filler are from calcium carbonate.
As preferred embodiment, the TiO 2 sol includes titanium dioxide, silica, polyacrylate,
Wherein, the mass percent of titanium dioxide is 0.5~4%, and the mass percent of silica is 0.5~10%, polyacrylic acid
The mass percent of ester is 0.1~4%, remaining is distilled water；The pH of the TiO 2 sol is 5~7.
As preferred embodiment, the dosage of the TiO 2 sol is 10~500g/m2。
The dosage of embodiment more preferably, the TiO 2 sol is 20~200g/m2。
As preferred embodiment, the compound stabilizer is lead salt compound stabilizer or calcium-zinc composite stabilizing agent.
As preferred embodiment, the one kind or more of the lubricant in paraffin, stearic acid, PE waxes, OPE waxes
Kind.
As preferred embodiment, the processing aid is selected from esters of acrylic acid, methacrylic acid-butadiene-benzene second
It is one or more in alkene copolymer, haloflex.
As preferred embodiment, the formaldehyde catching agent is the mixture of organic acid and urea, the organic acid choosing
From one or more in stearic acid, oleic acid, linoleic acid, citric acid, tartaric acid, itaconic acid, benzoic acid.
As preferred embodiment, the foaming agent is selected from one or both of azodicarbonamide, sodium bicarbonate.
As preferred embodiment, the granularity of the wood powder is 50~200 mesh, need before use through titanate coupling agent or
Silane coupling agent processing.
The environment-friendly polyvinyl chloride foaming wood-plastic that VOC is removed the present invention also provides a kind of photocatalyst and acid induction double-unit system is compound
The preparation method of material, includes the following steps：
Step 1: weighing polyvinyl chloride according to parts by weight, inorganic filler, wood powder, compound stabilizer, lubricant, adding
Work auxiliary agent, esters of acrylic acid foaming control agent, formaldehyde catching agent, foaming agent；
Step 2: above-mentioned material is added in high-speed mixer, by shear dispersion mixing effect make material 100~
It discharges, is then added into low speed mixer at 120 DEG C, discharged when material is cooled to 40~60 DEG C；
Step 3: setting extruder barrel, mold temperature as 150~190 DEG C, adjusts the rate of feeding of extruder, squeezes out
Speed, hauling speed prepare wood plastic product after material extrusion by the cooling and shaping of mold；
Step 4: in wood plastic product surface spraying or round brush TiO 2 sol, through obtaining wood moulding after natural drying
Composite material.
The beneficial effects of the invention are as follows：
1, the present invention fixes double-unit system technology and prepares environment-friendly polyvinyl chloride using the coating of photocatalyst outer layer and acid induction internal layer
(PVC) foam wood/plastic composite material makes wood plastic product have decomposing pollutant, improves the work(such as air environment, antibacterial, resistant be self-cleaning
Can, while the formaldehyde catching agent added in process can be inside fast reaction board falling material or because being produced in surface decoration
Raw formaldehyde volatile matter, discharge of the control formaldehyde into air is to the pollution of indoor environment and the harm of health.
2, the titanium dioxide in nature there are mainly three types of crystal form, the wherein catalytic activity of anatase titanium dioxide most
It is high.Common photocatalyst is more demanding to illumination condition, and only in ultra-violet (UV) band, there are catalytic activity.Since ultraviolet light only accounts for solar energy
5% or so of amount, the photocatalysis efficiency of common nano-titanium dioxide is very low.The present invention, which uses, is applicable not only to outdoor and can be with
The visible light-responded nano titanic oxide sol to play a role indoors is photocatalyst material, and excellent catalytic effect is at low cost, gram
It is difficult the problem of dispersion to have taken nano-titanium dioxide powder to reunite.
3, in the present invention in photocatalyst material TiO 2 sol, titanium dioxide exists with nano-dispersion state, bigger
Catalytic activity is improved in degree.
4, environment-friendly polyvinyl chloride (PVC) foam wood/plastic composite material of the invention is with chemical stability is strong, intensity is high, resistance to
Acid and alkali corrosion, soaking-resistant, it is fire-retardant the advantages that, timber can be substituted as cabinet, bathroom, top-grade furniture, building template, building
Ornament materials, house decoration, advertising lamp box, material of carving characters, automobile, train, steamer inner decoration material, have a extensive future.
5, preparation process of the present invention is simple, has the characteristics that at low cost, small investment, operating cost are low, treatment effect is high, can
With more efficient, more economical, safely and effectively removal volatile organic content (VOCs), mechanical mechanics property is high, environmentally protective, just
In large-scale production.
Specific implementation mode
The environment-friendly polyvinyl chloride foam wood/plastic composite material for removing VOC of the present invention is based on photocatalyst outer layer coating and sour
Internal layer is induced to fix what double-unit system was realized.The photocatalyst and acid induction double-unit system of the present invention foams except the environment-friendly polyvinyl chloride of VOC
Wood plastic composite includes following component in parts by weight：
100 parts of polyvinyl chloride, 10~60 parts of inorganic filler, 10~50 parts of wood powder, 2~8 parts of compound stabilizer, lubricant
0.1~3 part, 0~12 part of processing aid, 0~15 part of esters of acrylic acid foaming control agent, 1~10 part of formaldehyde catching agent, foaming agent
0.3~1.5 part；
By above-mentioned each material by a certain percentage (parts by weight) after mixing, extruded machine melting extrusion is prepared into wood-plastic board
Wood plastic product after material or shape product, straight forming or incrustation is through surface spraying or round brush one or more layers titanium dioxide
Titanium colloidal sol, naturally dry obtain target product.
The photocatalyst and acid induction double-unit system of the present invention removes in the environment-friendly polyvinyl chloride foam wood/plastic composite material of VOC, can
Colorant, antioxidant, fire retardant etc. to be added as needed.
Preferably, inorganic filler is one or more in calcium carbonate, talcum powder, kaolin, diatomite.
Preferably, inorganic filler is from calcium carbonate.
Preferably, TiO 2 sol is the sol solution of water white transparency, and the pH of sol solution is 5~7.
Preferably, the main component of TiO 2 sol is titanium dioxide, silica, polyacrylate, wherein dioxy
It is 0.5~4% to change the mass percent shared by titanium, and the mass percent shared by silica is 0.5~10%, polyacrylate
Shared mass percent is 0.1~4%, remaining is distilled water.
Preferably, the dosage of TiO 2 sol is 10~500g/m2；It is furthermore preferred that the dosage of TiO 2 sol is
20~200g/m2。
Photocatalyst is a kind of with the titanium dioxide semi-conducting material as main component with photo-catalysis function.Photocatalyst pair
The mechanism of the removal of organic matter is：After irradiation of the photocatalyst film layer by sunlight or ultraviolet spectrogram, the two of photocatalyst matrix
Titanium oxide can generate electroporation and free electron, these electroporations and free electron in air water and oxygen react, generate
With ultra-oxygen anion free radical and hydroxyl free radical, there is strong oxidizing property；Ultra-oxygen anion free radical and hydroxyl free radical will
Organic compound (harmful substance) in natural environment is decomposed, and water, carbon dioxide and inorganic matter are formed.
Preferably, compound stabilizer is lead salt compound stabilizer or calcium-zinc composite stabilizing agent.
Preferably, lubricant is one or more in paraffin, stearic acid, PE waxes, OPE waxes.
Preferably, the processing aid is selected from esters of acrylic acid, Methacrylate-butadiene-styrene
(MBS), one or more in haloflex (CPE).
Preferably, formaldehyde catching agent is the mixture of organic acid and urea, and the organic acid is selected from stearic acid, oleic acid, Asia
It is one or more in oleic acid, citric acid, tartaric acid, itaconic acid, benzoic acid.
Preferably, foaming agent is selected from one or both of azodicarbonamide (AC), sodium bicarbonate (NC).Work as foaming agent
When using two kinds of azodicarbonamide (AC) and sodium bicarbonate (NC), the quality of azodicarbonamide (AC) and sodium bicarbonate (NC)
Than being 1:3.
Preferably, the granularity of wood powder is 50~200 mesh, needs to handle through titanate coupling agent or silane coupling agent before use.
The environment-friendly polyvinyl chloride foaming wood-plastic that VOC is removed the present invention also provides a kind of photocatalyst and acid induction double-unit system is compound
The preparation method of material, includes the following steps：
Step 1: weighing polyvinyl chloride according to parts by weight, inorganic filler, wood powder, compound stabilizer, lubricant, adding
Work auxiliary agent, esters of acrylic acid foaming control agent, formaldehyde catching agent, foaming agent；
Step 2: above-mentioned material is added in high-speed mixer, acted on by the shearing dispersion mixing of high-speed mixer,
So that material is discharged at 100~120 DEG C, exist side by side and add it in low speed mixer, when material is cooled to 40~60 DEG C
Discharging；
Step 3: setting extruder barrel, mold temperature as 150~190 DEG C, adjusts the rate of feeding of extruder, squeezes out
Speed, hauling speed prepare the wood plastic product of qualified specification by the cooling and shaping of mold after material extrusion；
Step 4: wood plastic product surface spraying after straight forming or incrustation or round brush one or more layers dioxy
Change titanium colloidal sol, through obtaining wood plastic composite after natural drying.
Environment-friendly polyvinyl chloride (PVC) foam wood/plastic composite material, outer layer made from preparation method through the invention have
Using adulterating nonmetallic and metallic element nano titanic oxide sol as photocatalyst catalyst come catalytic elimination VOCs, due to
It using with visible light-responded nano-titanium dioxide, thus improves its photocatalysis efficiency and increases its scope of application, make
It is applicable not only to outdoor and can play a role indoors, has the effect of apparent persistently removal VOCs.It adds simultaneously
Formaldehyde catching agent can inside rapid capture material output formaldehyde nuisance, double-unit system removal VOC ensure that polyvinyl chloride
(PVC) foam wood/plastic composite material product green environmental protection and air-cleaning function with the obvious advantage.
Embodiment 1
The photocatalyst and acid induction double-unit system of the present invention remove the environment-friendly polyvinyl chloride foam wood/plastic composite material of VOC, according to
Parts by weight meter includes following component：
100 parts of polyvinyl chloride, 10 parts of calcium carbonate, granularity are 50 mesh and by titanate coupling agent treated wood powder 30
Part, 2 parts of lead salt compound stabilizer, 0.5 part of lubricant (three kinds of paraffin, stearic acid, PE waxes mixing), processing aid (acrylate
Class, the mixing of two kinds of Methacrylate-butadiene-styrene) 12 parts, 8 parts of esters of acrylic acid foaming control agent, formaldehyde catches
Catch 1 part of the agent mixture of benzoic acid and urea (itaconic acid), 0.3 part of foaming agent (two kinds of azodicarbonamide and sodium bicarbonate).
Preparation method is as follows：
(1) it is added in high-speed mixer after weighing all materials by above-mentioned parts by weight, passes through high-speed mixer
Shearing dispersion mixing effect makes temperature of charge discharge when being increased to 110 DEG C, exists side by side and adds it in low speed mixer, waits for object
Material discharges when being cooled to 50 DEG C；
(2) setting extruder barrel temperature, mold temperature, 165 DEG C of an area, 160 DEG C of 2nd area, 158 DEG C of 3rd area, four areas 155
DEG C, 150 DEG C of connector, 165 DEG C of mold opens extruder, adjusts extruder rate of feeding, extruded velocity, hauling speed, waits for object
After the steady extrusion of material, by the cooling and shaping of mold, the wood plastic product of qualified specification is prepared；
(3) in the wood plastic product surface spraying layer of titanium dioxide colloidal sol of straight forming, wherein TiO 2 sol dosage
For 10g/m2, target product is obtained after natural drying.
Embodiment 2
The photocatalyst and acid induction double-unit system of the present invention remove the environment-friendly polyvinyl chloride foam wood/plastic composite material of VOC, according to
Parts by weight meter includes following component：
100 parts of polyvinyl chloride, 30 parts of filler (calcium carbonate, talcum powder, the mixing of three kinds of kaolin), granularity be 150 mesh and
By through silane coupling agent treated 10 parts of wood powder, 4.5 parts of calcium-zinc composite stabilizing agent, lubricant (paraffin, stearic acid, PE waxes,
The mixing of four kinds of OPE waxes) 0.1 part, (esters of acrylic acid, Methacrylate-butadiene-styrene, chlorination are poly- for processing aid
The mixing of three kinds of ethylene) 9 parts, 7 parts of esters of acrylic acid foaming control agent, 6 parts of formaldehyde catching agent (mixture of stearic acid and urea),
0.9 part of azodicarbonamide.
Preparation method is as follows：
(1) it is added in high-speed mixer after weighing all materials by above-mentioned parts by weight, passes through cutting for high-speed mixer
Cutting, which dissipates immixture, makes temperature of charge discharge when being increased to 120 DEG C, exists side by side and adds it in low speed mixer, waits for material
It discharges when being cooled to 40 DEG C；
(2) setting extruder barrel temperature, mold temperature, 168 DEG C of an area, 165 DEG C of 2nd area, 163 DEG C of 3rd area, four areas 160
DEG C, 155 DEG C of connector, 170 DEG C of mold opens extruder, adjusts extruder rate of feeding, extruded velocity, hauling speed, waits for object
After the steady extrusion of material, by the cooling and shaping of mold, the wood plastic product of qualified specification is prepared；
(3) molten in two layers of titanium dioxide of its surface spraying in molding wood plastic product after embossed surface and plucking decoration
Glue, wherein TiO 2 sol dosage are 100g/m2, target product is obtained after natural drying.
Embodiment 3
The photocatalyst and acid induction double-unit system of the present invention remove the environment-friendly polyvinyl chloride foam wood/plastic composite material of VOC, according to
Parts by weight meter includes following component：
100 parts of polyvinyl chloride, 60 parts of filler (four kinds of calcium carbonate, talcum powder, kaolin, diatomite mixing), granularity is
200 mesh and by silane coupling agent treated 50 parts of wood powder, 8 parts of calcium-zinc composite stabilizing agent, 3 parts of paraffin, methacrylic acid-fourth
3 parts of diene-styrene copolymer, 15 parts of esters of acrylic acid foaming control agent, formaldehyde catching agent (linoleic acid, citric acid, winestone
The mixture of acid, itaconic acid and urea) 10 parts, 1.5 parts of sodium bicarbonate.
Preparation method is as follows：
(1) it is added in high-speed mixer after weighing all materials by above-mentioned parts by weight, passes through cutting for high-speed mixer
Cutting, which dissipates immixture, makes temperature of charge discharge when being increased to 100 DEG C, and immediately enters in low speed mixer, waits for that material is cooled to
It discharges at 60 DEG C；
(2) setting extruder barrel temperature, mold temperature, 175 DEG C of an area, 170 DEG C of 2nd area, 165 DEG C of 3rd area, four areas 163
DEG C, 160 DEG C of connector, 175 DEG C of mold opens extruder, adjusts extruder rate of feeding, extruded velocity, hauling speed, waits for object
After the steady extrusion of material, by the cooling and shaping of mold, the wood plastic product of qualified specification is prepared；
(3) molten in its surface roller coating multilayer titanium dioxide in molding wood plastic product after surface veneer or film coated decorative
Glue, wherein TiO 2 sol dosage are 500g/m2, target product is obtained after natural drying.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. photocatalyst and acid induction double-unit system remove the environment-friendly polyvinyl chloride foam wood/plastic composite material of VOC, which is characterized in that according to
Parts by weight meter includes following component：
100 parts of polyvinyl chloride, 10~60 parts of inorganic filler, 10~50 parts of wood powder, 2~8 parts of compound stabilizer, lubricant 0.1
~3 parts, 0~12 part of processing aid, 0~15 part of esters of acrylic acid foaming control agent, 1~10 part of formaldehyde catching agent, foaming agent 0.3
~1.5 parts；
It is prepared into wood plastic product after above-mentioned each material is mixed and in its surface titanium dioxide coating colloidal sol, obtains after natural drying
Obtain wood plastic composite.
2. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the inorganic filler is one or more in calcium carbonate, talcum powder, kaolin, diatomite.
3. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the TiO 2 sol includes titanium dioxide, silica, polyacrylate, wherein titanium dioxide
The mass percent of titanium is 0.5~4%, and the mass percent of silica is 0.5~10%, the quality percentage of polyacrylate
Than being 0.1~4%, remaining is distilled water；The pH of the TiO 2 sol is 5~7.
4. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the dosage of the TiO 2 sol is 10~500g/m2。
5. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the compound stabilizer is lead salt compound stabilizer or calcium-zinc composite stabilizing agent.
6. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the lubricant is one or more in paraffin, stearic acid, PE waxes, OPE waxes.
7. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the processing aid is selected from esters of acrylic acid, Methacrylate-butadiene-styrene, chlorine
Change one or more in polyethylene.
8. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the formaldehyde catching agent is the mixture of organic acid and urea, and the organic acid is selected from stearic acid, oil
It is one or more in acid, linoleic acid, citric acid, tartaric acid, itaconic acid, benzoic acid.
9. the environment-friendly polyvinyl chloride foaming wood-plastic that photocatalyst according to claim 1 and acid induction double-unit system remove VOC is compound
Material, which is characterized in that the foaming agent is selected from one or both of azodicarbonamide, sodium bicarbonate.
10. preparing the environmentally friendly polychlorostyrene second that photocatalyst and acid the induction double-unit system described in any one of claim 1 to 9 remove VOC
The method of alkene foam wood/plastic composite material, which is characterized in that include the following steps：
Step 1: weighing polyvinyl chloride according to parts by weight, inorganic filler, wood powder, compound stabilizer, lubricant, processing help
Agent, esters of acrylic acid foaming control agent, formaldehyde catching agent, foaming agent；
Step 2: above-mentioned material is added in high-speed mixer, make material 100~120 by shearing dispersion mixing effect
DEG C when discharge, be then added into low speed mixer, discharge when material is cooled to 40~60 DEG C；
Step 3: set extruder barrel, mold temperature as 150~190 DEG C, adjust the rate of feeding of extruder, extruded velocity,
Hauling speed prepares wood plastic product after material extrusion by the cooling and shaping of mold；
Step 4: in wood plastic product surface spraying or round brush TiO 2 sol, through obtaining wood plastics composite after natural drying
Material.
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| CN110066482A (en) * | 2019-05-17 | 2019-07-30 | 莱恩佳辰(苏州)纳米科技有限公司 | A kind of medical flame-proof PVC rubber mat of long acting antibiotic, formula and preparation method thereof |
| CN110195492A (en) * | 2019-05-28 | 2019-09-03 | 安徽国邦永盛高分子科技有限公司 | One kind having the function of VOC light degradation ASA synthetic resin watt and its preparation process |
| BE1029696B1 (en) * | 2021-08-20 | 2023-03-20 | Univ Henan Agricultural | PROCESS FOR MAKING AN ALDEHYDE-FREE, PHENOLIC-FREE WOOD-BASED BOARD BY ELIMINATION OF FORMALDEHYDE WITH PHOTOCATALYST/WAVE CATALYST |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110066482A (en) * | 2019-05-17 | 2019-07-30 | 莱恩佳辰(苏州)纳米科技有限公司 | A kind of medical flame-proof PVC rubber mat of long acting antibiotic, formula and preparation method thereof |
| CN110195492A (en) * | 2019-05-28 | 2019-09-03 | 安徽国邦永盛高分子科技有限公司 | One kind having the function of VOC light degradation ASA synthetic resin watt and its preparation process |
| BE1029696B1 (en) * | 2021-08-20 | 2023-03-20 | Univ Henan Agricultural | PROCESS FOR MAKING AN ALDEHYDE-FREE, PHENOLIC-FREE WOOD-BASED BOARD BY ELIMINATION OF FORMALDEHYDE WITH PHOTOCATALYST/WAVE CATALYST |
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