CN108948566A - A kind of PVC antibacterial flame-retardant floor and preparation method - Google Patents
A kind of PVC antibacterial flame-retardant floor and preparation method Download PDFInfo
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- CN108948566A CN108948566A CN201810381107.3A CN201810381107A CN108948566A CN 108948566 A CN108948566 A CN 108948566A CN 201810381107 A CN201810381107 A CN 201810381107A CN 108948566 A CN108948566 A CN 108948566A
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J9/0014—Use of organic additives
- C08J9/0042—Use of organic additives containing silicon
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- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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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
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- C08J2433/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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Abstract
The invention discloses a kind of PVC antibacterial flame-retardant floor and preparation method, the raw material including following parts by weight: 100-150 parts of polyvinyl chloride resin, 50-80 parts of bamboo powder, 10-20 parts of conch meal, 5-15 parts of perlite, 3-6 parts of aramid fiber, 20-40 parts of calcium carbonate crystal whisker, 1-3 parts of foaming agent, 0.5-2 parts of fire retardant, 0.5-2 parts of complex antimicrobials, 1-3 parts of plasticizer, 0.5-3 parts of stabilizer, 0.5-1.5 parts of antioxidant, 1-2 parts of phytic acid, 1-3 parts of modifying agent and 1-2 parts of processing aid；The modifying agent is made of the eight aminophenyl cagelike silsesquioxanes and polyacrylamide of 1:1-3.PVC floor prepared by the present invention has many advantages, such as that high-intensitive, shock resistance is strong, does not fission, good flame resistance, antibiotic property is strong, water absorption rate is low, it is wear-resisting, weather-proof, heat-resisting, be unlikely to deform, be ageing-resistant, processing performance is good, simple process, cost reduction is cheap, has a good application prospect.
Description
Technical field
The invention belongs to plastics arts, are specifically related to a kind of PVC antibacterial flame-retardant floor and preparation method.
Background technique
It by lignose and plant cellulose is basic material that PVC wood plastic composite material, which is a kind of, in addition thermoplasticity high score
Sub- material and processing aid etc., using a kind of environmentally protective novel-section of die apparatus hot briquetting after being uniformly mixed
Material.It has excellent physical mechanical property, and physical property is uniform, water absorption rate is low, dimensionally stable, corrosion-resistant, resistance to damages by worms and the side of processing
Just the advantages that, with general device of plastic processing or slightly can carry out processing and forming and can reuse and recycle again and be sharp after transformation
With.It is mainly used for furniture and ornament materials, building materials, outdoor material and corrosion resistance equipment etc., is good to mould Dai Mu
Material, application field is very extensive.With the fast development of domestic real estate, the auxiliary products such as furniture, interior decoration
Make rapid progress, using timber as the furniture of primary raw material, no longer adapts to the energy-saving and environmental protection policy advocated of country, the hardness of timber,
Toughness, quality difference are larger, and waterproof, fire prevention, anticorrosion, mould proof, antibacterial, Anti-moth-eating performance are very poor.
PVC wood plastic floor has many advantages, such as waterproof, moisture-proof, insect prevention, solves wood-based product and is easy corruption in wet environment
It is rotten, or the problem of expand and deform, can effectively prevent the harassing and wrecking of insects, extend the service life on floor.Its
The processability of secondary PVC floor is preferable, phenomena such as being cracked, expanding, deform can will not occur in the painting on surface of plate,
It does not need to repair and maintain, cleaning is got up more convenient simple, can save the time of installation and the expense of installation.
Summary of the invention
It is an object of that present invention to provide a kind of high intensity, impact resistance, it is wear-resisting, be unlikely to deform, do not fission, is good flame resistance, anti-
The strong PVC antibacterial flame-retardant floor of bacterium property and preparation method.
In order to achieve the goal above, The technical solution adopted by the invention is as follows:
A kind of PVC antibacterial flame-retardant floor, the raw material including following parts by weight: 100-150 parts of polyvinyl chloride resin, 50-80 parts of bamboo powder,
10-20 parts of conch meal, 5-15 parts of perlite, 3-6 parts of aramid fiber, 20-40 parts of calcium carbonate crystal whisker, 1-3 parts of foaming agent, fire retardant
0.5-2 parts, 0.5-2 parts of complex antimicrobials, 1-3 parts of plasticizer, 0.5-3 parts of stabilizer, 0.5-1.5 parts of antioxidant, phytic acid 1-2
Part, 1-3 parts of modifying agent and 1-2 parts of processing aid；The modifying agent is by the eight aminophenyl cagelike silsesquioxanes of 1:1-3 and poly-
Acrylamide composition.
Further, the foaming agent is made of the ammonium carbonate and triterpenoid saponin that mass ratio is 1-3:1.
Further, the fire retardant is made of mass ratio for the zinc borate of 1-2:1 and three (dibromopropyl) isocyanates.
Further, the complex antimicrobials are made of the titanium dioxide and lanthana that mass ratio is 1-3:1.
Further, (triethylene glycol monobutyl ester) ester of citric acid three and methyl three that the plasticizer is 1:1-3 by mass ratio
Ethoxysilane composition.
Further, zinc oxide and dibutyl tin lauric acid maleate group that the stabilizer is 1:1-2 by weight ratio
At.
Further, the processing aid is made of the PE wax and castor oil polyethylene glycol oxide that mass ratio is 1-3:1.
Further, the antioxidant is one of 1010 antioxidants, 1076 antioxidants and CA antioxidant
Or multiple combinations.
The present invention also provides the preparation methods on PVC antibacterial flame-retardant floor, include the following steps:
(1) modifying agent will be added in conch meal, perlite, aramid fiber, calcium carbonate crystal whisker, 100-150 parts of water, stirring is added
20-30min carries out surface and is modified, and obtains modified mixture；
(2) phytic acid is added in bamboo powder, stirs 10-20min, obtains modified bamboo powder；
(3) modification mixture, modified bamboo powder and its remaining raw material are added into kneader and mediates 20-30min at 60-80 DEG C, pinched
The material that conjunction obtains is delivered to kneading machine and is kneaded 10-20min at 120-140 DEG C, obtains mixed material；
(4) mixed material is dried, is pressed and molded, depanning is to get PVC floor.
Compared with prior art, it advantages of the present invention and has the beneficial effect that
1, the present invention is using the coordinative role of unique composition of raw materials and each component, and the PVC floor of preparation is with high-intensitive, anti-impact
Hit performance is strong, do not fission, good flame resistance, antibiotic property is strong, water absorption rate is low, it is wear-resisting, weather-proof, heat-resisting, be unlikely to deform, be ageing-resistant etc. it is excellent
Point, processing performance is good, simple process, and cost reduction is cheap, has a good application prospect.
It is 2, of the invention using eight aminophenyl cagelike silsesquioxanes and polyacrylamide as the modified additive of inorganic pigment,
It, can be by forming covalent bond and matrix surface since octaphenyl cagelike silsesquioxane molecule contains silicon and multiple organic groups
In conjunction with polyacrylamide has very strong peptizaiton to inorganic pigment, has good compatibility with organic pigment and cooperates with
Synergistic effect, therefore heat resistance, inoxidizability, anti-flammability and the wearability of material surface not only can be improved, moreover it is possible to improve wood moulding
The intensity and impact resistance on floor.
3, the present invention has widened the industrial chain of shell using conch meal as raw material, and conch meal has extremely strong antibacterial to Escherichia coli
And bactericidal effect, in addition also there is remarkable result to salmonella, yellow glucose fungus, conch meal can also improve PVC floor
Flame retardant property can absorb the harmful substances such as formaldehyde, the benzene in air.
4, inventive formulation is additionally added perlite and aramid fiber and does not only reach the tough effect of enhancing benefit, moreover it is possible to improve PVC
The sound isolating and flame-retardant performance on floor, anti-aging, weatherability etc..
5, the plasticizer and processing aid that the present invention uses can improve the processing performance of PVC product, improve the light of product
Cleanliness and processing dispersibility.
6, the processing aid that the present invention uses can not only improve the dispersibility and processing fluidity of system, moreover it is possible to improve
The weatherability and inoxidizability of PVC floor.
7, the complex antimicrobials that the present invention is formed with titanium dioxide and lanthana, to large intestine bar under room temperature or high-temperature condition
Bacterium, gold staphylococcus, fungi etc. have significant antibacterial and fungistatic effect.
Specific embodiment
Invention is further described in detail combined with specific embodiments below, but does not limit the scope of the invention and its answer
With.
Embodiment 1
A kind of PVC antibacterial flame-retardant floor, the raw material including following parts by weight: 120 parts of polyvinyl chloride resin, 70 parts of bamboo powder, conch meal 15
Part, 12 parts of perlite, 5 parts of aramid fiber, 30 parts of calcium carbonate crystal whisker, 2 parts of foaming agent, 1.5 parts of fire retardant, complex antimicrobials 1.5
Part, 2 parts of plasticizer, 1.5 parts of stabilizer, 1 part of 1010 antioxidant, 1.5 parts of phytic acid, 2 parts of modifying agent and 1.5 parts of processing aid.
The modifying agent is made of the eight aminophenyl cagelike silsesquioxanes and polyacrylamide of 1:3.
The foaming agent is made of the ammonium carbonate that mass ratio is 1:1 and triterpenoid saponin.
The fire retardant is made of the zinc borate that mass ratio is 1:1 and three (dibromopropyl) isocyanates.
The complex antimicrobials are made of the titanium dioxide that mass ratio is 2:1 and lanthana.
(triethylene glycol monobutyl ester) ester of citric acid three and methyltriethoxysilane group that the plasticizer is 1:2 by mass ratio
At.
The stabilizer is made of the zinc oxide that weight ratio is 1:1 and dibutyl tin lauric acid maleate.
The processing aid is made of the PE wax that mass ratio is 2:1 and castor oil polyethylene glycol oxide.
The preparation method on PVC antibacterial flame-retardant floor, includes the following steps:
(1) modifying agent will be added in conch meal, perlite, aramid fiber, calcium carbonate crystal whisker, 100 parts of water is added, stir 25min
It is modified to carry out surface, obtains modified mixture；
(2) phytic acid is added in bamboo powder, stirs 15min, obtains modified bamboo powder；
(3) modified mixture, modified bamboo powder and its remaining raw material are added to kneader and mediates 30min at 70 DEG C, kneading obtains
Material be delivered to kneading machine and be kneaded 15min at 130 DEG C, obtain mixed material；
(4) mixed material is dried, is pressed and molded, depanning is to get PVC floor.The temperature of the compression molding is 140 DEG C, mould
Pressure pressure is 5MPa, clamp time 40min.
Embodiment 2
A kind of PVC antibacterial flame-retardant floor, the raw material including following parts by weight: 100 parts of polyvinyl chloride resin, 60 parts of bamboo powder, conch meal 10
Part, 8 parts of perlite, 4 parts of aramid fiber, 35 parts of calcium carbonate crystal whisker, 1.5 parts of foaming agent, 1 part of fire retardant, 2 parts of complex antimicrobials,
2.5 parts of plasticizer, 2 parts of stabilizer, 0.5 part of 1076 antioxidant, 2 parts of phytic acid, 2.5 parts of modifying agent and 2 parts of processing aid.
The modifying agent is made of the eight aminophenyl cagelike silsesquioxanes and polyacrylamide of 1:1.
The foaming agent is made of the ammonium carbonate that mass ratio is 2:1 and triterpenoid saponin.
The fire retardant is made of the zinc borate that mass ratio is 1:1 and three (dibromopropyl) isocyanates.
The complex antimicrobials are made of the titanium dioxide that mass ratio is 3:1 and lanthana.
(triethylene glycol monobutyl ester) ester of citric acid three and methyltriethoxysilane group that the plasticizer is 1:1 by mass ratio
At.
The stabilizer is made of the zinc oxide that weight ratio is 1:2 and dibutyl tin lauric acid maleate.
The processing aid is made of the PE wax that mass ratio is 1:1 and castor oil polyethylene glycol oxide.
The preparation method on PVC antibacterial flame-retardant floor, includes the following steps:
(1) modifying agent will be added in conch meal, perlite, aramid fiber, calcium carbonate crystal whisker, 120 parts of water is added, stir 30min
It is modified to carry out surface, obtains modified mixture；
(2) phytic acid is added in bamboo powder, stirs 10min, obtains modified bamboo powder；
(3) modified mixture, modified bamboo powder and its remaining raw material are added to kneader and mediates 20min at 80 DEG C, kneading obtains
Material be delivered to kneading machine and be kneaded 10min at 140 DEG C, obtain mixed material；
(4) mixed material is dried, is pressed and molded, depanning is to get PVC floor.The temperature of the compression molding is 145 DEG C, mould
Pressure pressure is 8MPa, clamp time 30min.
Embodiment 3
A kind of PVC antibacterial flame-retardant floor, the raw material including following parts by weight: 150 parts of polyvinyl chloride resin, 80 parts of bamboo powder, conch meal 20
Part, 10 parts of perlite, 5 parts of aramid fiber, 30 parts of calcium carbonate crystal whisker, 3 parts of foaming agent, 0.5 part of fire retardant, 1 part of complex antimicrobials,
1.5 parts of plasticizer, 1.5 parts of stabilizer, 1 part of CA antioxidant, 1.5 parts of phytic acid, 3 parts of modifying agent and 1 part of processing aid.
The modifying agent is made of the eight aminophenyl cagelike silsesquioxanes and polyacrylamide of 1:2.
The foaming agent is made of the ammonium carbonate that mass ratio is 1:1 and triterpenoid saponin.
The fire retardant is made of the zinc borate that mass ratio is 2:1 and three (dibromopropyl) isocyanates.
The complex antimicrobials are made of the titanium dioxide that mass ratio is 1:1 and lanthana.
(triethylene glycol monobutyl ester) ester of citric acid three and methyltriethoxysilane group that the plasticizer is 1:3 by mass ratio
At.
The stabilizer is made of the zinc oxide that weight ratio is 1:1 and dibutyl tin lauric acid maleate.
The processing aid is made of the PE wax that mass ratio is 2:1 and castor oil polyethylene glycol oxide.
The preparation method on PVC antibacterial flame-retardant floor, includes the following steps:
(1) modifying agent will be added in conch meal, perlite, aramid fiber, calcium carbonate crystal whisker, 150 parts of water is added, stir 20min
It is modified to carry out surface, obtains modified mixture；
(2) phytic acid is added in bamboo powder, stirs 20min, obtains modified bamboo powder；
(3) modified mixture, modified bamboo powder and its remaining raw material are added to kneader and mediates 30min at 70 DEG C, kneading obtains
Material be delivered to kneading machine and be kneaded 20min at 120 DEG C, obtain mixed material；
(4) mixed material is dried, is pressed and molded, depanning is to get PVC floor.The temperature of the compression molding is 130 DEG C, mould
Pressure pressure is 10MPa, clamp time 60min.
Embodiment 4
A kind of PVC antibacterial flame-retardant floor, the raw material including following parts by weight: 150 parts of polyvinyl chloride resin, 80 parts of bamboo powder, conch meal 15
Part, 12 parts of perlite, 6 parts of aramid fiber, 40 parts of calcium carbonate crystal whisker, 3 parts of foaming agent, 1.5 parts of fire retardant, complex antimicrobials 1.5
Part, 2 parts of plasticizer, 1 part of stabilizer, 1.5 parts of 1010 antioxidant, 2 parts of phytic acid, 1.5 parts of modifying agent and 1 part of processing aid.
The modifying agent is made of the eight aminophenyl cagelike silsesquioxanes and polyacrylamide of 2:1.
The foaming agent is made of the ammonium carbonate that mass ratio is 3:1 and triterpenoid saponin.
The fire retardant is made of the zinc borate that mass ratio is 2:1 and three (dibromopropyl) isocyanates.
The complex antimicrobials are made of the titanium dioxide that mass ratio is 1:1 and lanthana.
(triethylene glycol monobutyl ester) ester of citric acid three and methyltriethoxysilane group that the plasticizer is 1:3 by mass ratio
At.
The stabilizer is made of the zinc oxide that weight ratio is 1:1 and dibutyl tin lauric acid maleate.
The processing aid is made of the PE wax that mass ratio is 3:1 and castor oil polyethylene glycol oxide.
The preparation method on PVC antibacterial flame-retardant floor, includes the following steps:
(1) modifying agent will be added in conch meal, perlite, aramid fiber, calcium carbonate crystal whisker, 150 parts of water is added, stir 20min
It is modified to carry out surface, obtains modified mixture；
(2) phytic acid is added in bamboo powder, stirs 15min, obtains modified bamboo powder；
(3) modified mixture, modified bamboo powder and its remaining raw material are added to kneader and mediates 25min at 80 DEG C, kneading obtains
Material be delivered to kneading machine and be kneaded 20min at 120 DEG C, obtain mixed material；
(4) mixed material is dried, is pressed and molded, depanning is to get PVC floor.The temperature of the compression molding is 150 DEG C, mould
Pressure pressure is 5MPa, clamp time 30min.
PVC floor prepared by embodiment 1-4 is conventionally measured to the tensile strength, bending strength, freely-supported of batten
Beam impact strength, water absorption rate, anti-flammability and for 24 hours to the sterilizing rate of Escherichia coli, staphylococcus aureus, test result such as table 1
It is shown.
Table 1: the performance test results on PVC antibacterial flame-retardant of the present invention floor
It is learnt from above-mentioned test result, PVC floor prepared by the present invention has that high intensity, high tenacity, shock resistance are strong, hinder
Combustion, the advantages that antibiotic property is good, have a good application prospect.
Claims (10)
1. a kind of PVC antibacterial flame-retardant floor, it is characterised in that: the raw material including following parts by weight: 100-150 parts of polyvinyl chloride resin,
50-80 parts of bamboo powder, 10-20 parts of conch meal, 5-15 parts of perlite, 3-6 parts of aramid fiber, 20-40 parts of calcium carbonate crystal whisker, foaming agent
1-3 parts, 0.5-2 parts of fire retardant, 0.5-2 parts of complex antimicrobials, 1-3 parts of plasticizer, 0.5-3 parts of stabilizer, antioxidant 0.5-1.5
Part, 1-2 parts of phytic acid, 1-3 parts of modifying agent and 1-2 parts of processing aid；The modifying agent by 1:1-3 eight aminophenyl cage type sesquialters
Siloxanes and polyacrylamide composition.
2. PVC antibacterial flame-retardant according to claim 1 floor, it is characterised in that: the foaming agent is 1-3:1 by mass ratio
Ammonium carbonate and triterpenoid saponin composition.
3. PVC antibacterial flame-retardant according to claim 1 floor, it is characterised in that: the fire retardant is 1-2:1 by mass ratio
Zinc borate and three (dibromopropyl) isocyanates composition.
4. PVC antibacterial flame-retardant floor according to claim 1, it is characterised in that: the complex antimicrobials are 1- by mass ratio
The titanium dioxide and lanthana of 3:1 forms.
5. PVC antibacterial flame-retardant according to claim 1 floor, it is characterised in that: the plasticizer is 1:1-3 by mass ratio
(triethylene glycol monobutyl ester) ester of citric acid three and methyltriethoxysilane composition.
6. PVC antibacterial flame-retardant according to claim 1 floor, it is characterised in that: the stabilizer is 1:1-2 by weight ratio
Zinc oxide and dibutyl tin lauric acid maleate composition.
7. PVC antibacterial flame-retardant according to claim 1 floor, it is characterised in that: the processing aid is 1- by mass ratio
The PE wax and castor oil polyethylene glycol oxide of 3:1 forms.
8. PVC antibacterial flame-retardant according to claim 1 floor, it is characterised in that: the antioxidant is 1010 anti-oxidant
One of agent, 1076 antioxidants and CA antioxidant or multiple combinations.
9. the preparation method on PVC antibacterial flame-retardant as described in claim 1 floor, characterized by the following steps:
(1) modifying agent will be added in conch meal, perlite, aramid fiber, calcium carbonate crystal whisker, 100-150 parts of water, stirring is added
20-30min carries out surface and is modified, and obtains modified mixture；
(2) phytic acid is added in bamboo powder, stirs 10-20min, obtains modified bamboo powder；
(3) modification mixture, modified bamboo powder and its remaining raw material are added into kneader and mediates 20-30min at 60-80 DEG C, pinched
The material that conjunction obtains is delivered to kneading machine and is kneaded 10-20min at 120-140 DEG C, obtains mixed material；
(4) mixed material is dried, is pressed and molded, depanning is to get PVC floor.
10. the preparation method on PVC antibacterial flame-retardant floor according to claim 9, it is characterised in that: the temperature of the compression molding
Degree is 130-150 DEG C, molding pressure 5-10MPa, clamp time 30-60min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112538224A (en) * | 2020-12-03 | 2021-03-23 | 广东祺龙科技有限公司 | Anti-radiation antibacterial mildew-proof flame-retardant floor material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004176535A (en) * | 2002-11-12 | 2004-06-24 | Idemitsu Technofine Co Ltd | Floor material |
| CN105176296A (en) * | 2015-10-12 | 2015-12-23 | 中国科学院宁波材料技术与工程研究所 | High-temperature resistant coating based on polysilsesquioxane modification and application thereof |
| CA2856385A1 (en) * | 2014-07-10 | 2016-01-10 | Zhejiang Yongyu Bamboo Joint-Stock Co., Ltd. | A composite floor and manufacturing method thereof |
| CN107099103A (en) * | 2017-05-12 | 2017-08-29 | 程艳青 | A kind of flame-retardant expanded type PVC wood mould plate of high tenacity and preparation method thereof |
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2018
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|---|---|---|---|---|
| JP2004176535A (en) * | 2002-11-12 | 2004-06-24 | Idemitsu Technofine Co Ltd | Floor material |
| CA2856385A1 (en) * | 2014-07-10 | 2016-01-10 | Zhejiang Yongyu Bamboo Joint-Stock Co., Ltd. | A composite floor and manufacturing method thereof |
| CN105176296A (en) * | 2015-10-12 | 2015-12-23 | 中国科学院宁波材料技术与工程研究所 | High-temperature resistant coating based on polysilsesquioxane modification and application thereof |
| CN107099103A (en) * | 2017-05-12 | 2017-08-29 | 程艳青 | A kind of flame-retardant expanded type PVC wood mould plate of high tenacity and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112538224A (en) * | 2020-12-03 | 2021-03-23 | 广东祺龙科技有限公司 | Anti-radiation antibacterial mildew-proof flame-retardant floor material and preparation method and application thereof |
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Application publication date: 20181207 |