CN109025165A - A kind of Environmental protection floor and its manufacturing method of polyolefin material - Google Patents
A kind of Environmental protection floor and its manufacturing method of polyolefin material Download PDFInfo
- Publication number
- CN109025165A CN109025165A CN201810783124.XA CN201810783124A CN109025165A CN 109025165 A CN109025165 A CN 109025165A CN 201810783124 A CN201810783124 A CN 201810783124A CN 109025165 A CN109025165 A CN 109025165A
- Authority
- CN
- China
- Prior art keywords
- polyolefin
- layer
- substrate layer
- environmental protection
- protection floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
- E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
-
- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The present invention relates to polymeric material fields, and in particular to a kind of Environmental protection floor of polyolefin material, including combined multilayered structure: substrate layer, decorative layer and wearing layer；The invention also discloses the manufacturing methods of the Environmental protection floor.Its is widely used, function admirable, good decorating effect.
Description
Technical field
The present invention relates to polymeric material fields, and in particular to a kind of Environmental protection floor of polyolefin material and its manufacturer
Method.
Background technique
With the continuous development of building trade, PVC floor has been widely used for indoor and outdoor decoration, and it uses extensive, performance
Excellent, good decorating effect is loved by consumers.
Although existing PVC floor already has various good performances, but have a disadvantage in that kindling when or
When burning disposal, a large amount of penetrating odor hydrogen chloride (HCl) can be generated, while generating the carcinogens such as dioxin, to environment
It causes damages with human body.In addition, PVC material is in process, a large amount of plasticizer, stabilizer etc. can be added, was being used
These small-molecule substances in journey, it may occur that migration is precipitated, and there are potentially hazardous to human body.In addition, polyolefin material
Plastics specific gravity is lighter, therefore the Environmental protection floor of the polyolefin material of same size is light relative to traditional PVC floor, can mitigate height
The load-bearing of layer building and reduction transportation cost.
Summary of the invention
The purpose of the present invention is to provide a kind of Environmental protection floors and preparation method thereof of the polyolefin material of clever structure..
Technical scheme is as follows:
A kind of Environmental protection floor of polyolefin material, including combined multilayered structure, multilayered structure include substrate layer, decoration
Layer and wearing layer.In conjunction with mode can be hot pressing fitting, be also possible to co-extrusion.The wearing layer of transparent material is polypropylene (PP)
Material transparent membrane, calendering polypropylene film (PP), cast polypropylene film (CPP), in bidirectional stretching polypropylene film (OPP)
Any one.
Further, wearing layer is surface layer, and decorative layer is middle layer, and substrate layer is bottom, and the wearing layer is transparent
Material.
Further, wear-resisting layer surface has the coating material solidified layer of UV.
Further, decorative layer is amorphization polyethylene terephthalate copolyesters (PETG) print film.
Further, substrate layer is the double-layer structure of hot pressing, and the surface layer of substrate layer is the first elastic polyolefin substrate layer, base
The bottom of material layer is the second elastic polyolefin substrate layer.Double-deck elastic polyolefin substrate layer collocation is got up with preferable damping
Sound-absorbing effect.
Further, the constituent of the first elastic polyolefin substrate layer includes: 100 mass parts of polyolefin plastics, polyene
Olefin elastomer 50-200 mass parts, filler 200-500 mass parts, auxiliary agent 3-30 mass parts.As substrate layer upper layer proportion of filler
Height, at low cost, the floor panel structure suitable for preferred embodiment 1.
Further, the constituent of the second elastic polyolefin substrate layer includes: 100 parts of mass parts of polyolefin plastics, is gathered
Olefin elastomer 50-200 mass parts, filler 50-250 mass parts, auxiliary agent 3-30 mass parts.As substrate layer lower layer, filler ratio
Example is low, and elastomer content is high, and elasticity is strong, and the ability for absorbing impact is strong, and main effect is that floor is led under impact in order to prevent
The structure entirety warpage of cause, maintains the stabilization of floor panel structure.
Further, as another preferred embodiment of substrate layer of the present invention, the substrate layer is single layer structure
Squeeze out hard polyolefin layer.
Further, the constituent for squeezing out hard polyolefin layer includes: 100 mass parts of polyolefin plastics, polyolefin bullet
Property body 10-50 mass parts, filler 100-200 mass parts, auxiliary agent 3-30 mass parts.Low, the plate as substrate layer elastomer content
Firmly, it is suitable for lock fluting floor, guarantees the intensity of button-type.
Further, polyolefin plastics is selected from polypropylene (PP), polyethylene (PE), at least one in poly 1-butene (PB-1)
Kind.
Further, polyolefin elastomer is selected from ethylene propylene diene rubber (EPDM), ethylene-octene copolymer (POE), second
At least one of alkene-acetate ethylene copolymer (EVA).
Further, filler includes at least one of mountain flour, wood powder, talcum powder, clay.
Further, auxiliary agent includes 1-5 parts of antioxidant, coupling agent 1-5, and 1-5 parts of lubricant, 0-5 parts of vulcanizing agent, vulcanization
Promotor 0-1,0-3 parts of colorant.
A kind of preparation method of substrate layer includes the following steps:
A. by coupling agent and mix lubricant, mixed liquor and filler is then taken to stir in high-speed stirred bucket, is filled out after processing is made
Material；
B. filler, polyolefin plastics, polyolefin elastomer, auxiliary agent after processing are sent into process equipment and substrate layer is made.
Further, b step is filler after handling, polyolefin plastics, polyolefin elastomer, auxiliary agent ten thousand horsepowers of machines of feeding
In, by mixing, calendering, cooling, cut finally obtained substrate layer.
Further, the control of calendering technology temperature is at 125-175 DEG C.
Further, b step is filler, polyolefin plastics, polyolefin elastomer, auxiliary agent after handling, and stirring is added and sets
In standby, then substrate layer is made by extrusion process in stirring cooling.
A kind of manufacturing method of the Environmental protection floor of polyolefin material, includes the following steps:
A. wearing layer, decorative layer, substrate layer are bonded and semi-finished product is made；
B. using lamination, tempering, molding, fluting process finished product.
Wherein, semi-finished product are made using online attaching process is squeezed out in a step.
Further, squeezing out online attaching process temperature is 160-190 DEG C, is bonded roll gap 2-6mm.
The Environmental protection floor of polyolefin material of the invention selects the polyolefin high molecular material of environmental protection, increases without containing small molecule
Agent is moulded, halogen is not contained, penetrating odor hydrogen chloride (HCl) is not generated when burning, does not generate the carcinogens such as dioxin.
Detailed description of the invention
Fig. 1 is the cross-sectional structure schematic diagram of the Environmental protection floor of the polyolefin material of embodiment 1.
Fig. 2 is the cross-sectional structure schematic diagram of the Environmental protection floor of the polyolefin material of embodiment 2.
Fig. 3 is the production procedure schematic diagram of the Environmental protection floor of the polyolefin material of embodiment 1.
Fig. 4 is the production procedure schematic diagram of the Environmental protection floor of the polyolefin material of embodiment 2.
Specific embodiment
Environmental protection floor of polyolefin material of the present invention and preparation method thereof is made below in conjunction with specific embodiments and drawings
It is described in further detail.
Embodiment 1:
As shown in Figure 1, in a preferred embodiment, including from top to bottom successively the UV leaching membrane layer 4, PP wearing layer 3 of hot pressing fitting,
PETG print film decorative layer 2, surface layer substrate layer 1, bottom substrate layer 5.
Wherein the surface layer substrate layer of substrate layer and the formula of bottom substrate layer are as follows:
Wherein each thickness degree is as follows:
| UV leaching membrane layer | PP wearing layer | PETG printing layer | Surface layer substrate layer | Bottom substrate layer | |
| Thickness (mm) | 0.05 | 0.30 | 0.10 | 0.85 | 1.20 |
The production technology of embodiment 1 includes the following steps:
Titanate coupling agent and white oil are first mixed according to formulation ratio, then take mixed liquor and mountain flour according to formulation ratio by a
5min is stirred in high-speed stirred bucket, mountain flour after processing is made；
Ten thousand horsepowers of machine temperature settings are 155 DEG C by b, and rubber mixing machine temperature sets 160 DEG C, and chill-roll temperature is set as 30 DEG C, according to
Mountain flour, polyolefin plastics, polyolefin elastomer, antioxidant, black smoke after the processing of formulation ratio are added in ten thousand horsepowers of machines, warp
Cross mixing, calendering, cooling, fixed polyolefin middle layer substrate layer that is thick, cutting last 0.85mm obtained respectively and 1.20mm
Polyolefin bottom substrate layer.C, by PP, auxiliary agent, by curtain coating extrusion process production 0.3mm polypropylene film (CPP).
Hot press temperature setting is 150 DEG C by d, and one section of pressure is set as 70kg, is set as 40min for a period of time, two sections
Pressure is set as 80kg, two times are set as 4min, and three sections of pressure are set as 90kg, three times are set as 15min, will
CPP film wearing layer, PETG decorative layer, middle layer substrate layer and bottom substrate layer, are successively completed, and are made poly- by hot press fitting
Alkene Environmental protection floor semi-finished product.
E. polyolefin Environmental protection floor finished product is made using UV lamination, tempering, molding, chamfered edge process.
Embodiment 2:
As shown in Fig. 2, in a preferred embodiment, including from top to bottom successively the UV leaching membrane layer 4, PP wearing layer 3 of heat fitting,
PETG print film decorative layer 2, substrate layer 6, sound absorbing layer 7.
Wherein the formula of substrate layer is as follows:
Wherein each thickness degree is as follows:
Main production includes the following steps:
Titanate coupling agent and white oil are first mixed according to formulation ratio, then take mixed liquor and mountain flour to exist according to formulation ratio by a
5min is stirred in high-speed stirred bucket, mountain flour after processing is made；
B, according to mountain flour, polyolefin plastics, polyolefin elastomer, antioxidant, PE wax, fire-retardant mother after the processing of formulation ratio
Grain, black smoke mix spare；
Mixing is transported in drying chamber by vacuum negative-pressure material sucking machine and dehumidifying is dried at 100-110 DEG C again while carrying out by c
Uniform mixed processing is being cooled to 45 DEG C hereinafter, again dispersing above-mentioned raw material in 130-220 DEG C of temperature of extruder molten
Melt, by merging core and the head extrusion molding of dedicated hanger pattern, obtains substrate layer；
PP, auxiliary agent are placed on discharging frame by d by extrusion calendaring technique production 0.5mm polypropylene film (CPP), in addition will
PETG decorating film is also placed in spare on discharging frame.
The not cooling thickness measuring roller that passes through immediately of the substrate of extrusion is determined thickness 4.4mm by e, then by the online make-up machine of four-roller, by PP
Film wearing layer, PETG decorative layer, substrate layer, it is online to be bonded, then polyolefin Environmental protection floor semi-finished product are made by cooling draw,
Wherein four-roller fitting line temperature setting is 160-190 DEG C, is bonded roll gap 2-6mm.
F, using UV lamination, tempering, molding, fluting, fitting ixpe(crosslinked polyethylene foam sheet) process be made it is poly-
Alkene Environmental protection floor finished product.
The Environmental protection floor of the present embodiment polyolefin material not only has waterproof, fire-retardant, moisture-proof, anti-corrosion, wear-resisting, sound-absorbing, resistance to
Acid and alkali corrosion is easy construction, is in a great variety, environmental protection all advantages of PVC floors such as renewable.There are also be plasticized without containing small molecule
Agent does not contain halogen, does not generate penetrating odor hydrogen chloride (HCl) when burning, it is excellent not generate carcinogens such as dioxin etc.
Point.In addition, polyolefin material plastics specific gravity is lighter, therefore the Environmental protection floor of the polyolefin material of same size is relative to tradition
PVC floor is light, can mitigate the load-bearing of skyscraper and reduce transportation cost.The timber intensity of the present embodiment is higher, is suitable for
Latch floor is made.
It tests, meets the requirements according to GB/T 4085-2005 semi-rigid polyvinyl chloride block-shaped floor
Specific test data is as follows:
Beneficial effects of the present invention are found below by way of Experimental comparison's data:
The Environmental protection floor of polyolefin material of the present invention has waterproof, fire-retardant, moisture-proof, anti-corrosion, wear-resisting, sound-absorbing, acid-alkali-corrosive-resisting, appearance
The advantages that easily constructing, be in a great variety, is environmentally friendly renewable.Meet GB/T 4085-2005 semi-rigid polyvinyl chloride block-shaped floor specification
Requirement, there are also do not contain small molecule plasticizer, do not contain halogen, burn when do not generate penetrating odor hydrogen chloride (HCl),
Not the advantages that not generating the carcinogens such as dioxin.It is that one kind is environmentally protective, the floor decorative material haveing excellent performance can substitute
The similar product of PVC material, in addition, polyolefin material plastics specific gravity is lighter, the Environmental protection floor of the polyolefin material of same size
It is light by 25% relative to traditional PVC floor, the load-bearing of skyscraper can be mitigated and reduce transportation cost.
Although description of this invention combination embodiments above carries out, those skilled in the art
Member can carry out many replacements based on the above contents, modifications and variations, be obvious.Therefore, all such substitutions,
Improvements and changes are included in the spirit and scope of appended claims.
Claims (18)
1. a kind of Environmental protection floor of polyolefin material, including combined multilayered structure, which is characterized in that the multilayer
Structure includes substrate layer, decorative layer and wearing layer, in conjunction with mode include hot pressing fitting or co-extrusion, wearing layer is surface layer, decoration
Layer be middle layer, substrate layer is bottom, the wearing layer be transparent material, transparent material be polypropylene material transparent membrane,
Roll polypropylene film, cast polypropylene film, any one in bidirectional stretching polypropylene film.
2. the Environmental protection floor of polyolefin material according to claim 1, which is characterized in that the wear-resisting layer surface has
The coating material solidified layer of UV.
3. the Environmental protection floor of polyolefin material according to claim 1, which is characterized in that the decorative layer is noncrystalline
Change polyethylene terephthalate copolyesters print film.
4. the Environmental protection floor of polyolefin material according to claim 1, which is characterized in that the substrate layer be hot pressing and
At double-layer structure, the surface layer of substrate layer is the first elastic polyolefin substrate layer, and the bottom of substrate layer is the second elastic polyolefin
Substrate layer.
5. the Environmental protection floor of polyolefin material according to claim 1, which is characterized in that the substrate layer is single layer knot
The extrusion hard polyolefin layer of structure.
6. the Environmental protection floor of polyolefin material according to claim 4, which is characterized in that first elastic polyolefin
The constituent of substrate layer includes: 100 mass parts of polyolefin plastics, polyolefin elastomer 50-200 mass parts, filler 200-500
Mass parts, auxiliary agent 3-30 mass parts.
7. the Environmental protection floor of polyolefin material according to claim 4, which is characterized in that second elastic polyolefin
The constituent of substrate layer includes: 100 parts of mass parts of polyolefin plastics, polyolefin elastomer 50-200 mass parts, filler 50-
250 mass parts, auxiliary agent 3-30 mass parts.
8. the Environmental protection floor of polyolefin material according to claim 5, which is characterized in that the extrusion hard polyolefin
The constituent of layer includes: 100 mass parts of polyolefin plastics, polyolefin elastomer 10-50 mass parts, filler 100-200 mass
Part, auxiliary agent 3-30 mass parts.
9. according to the Environmental protection floor of polyolefin material described in claim 6,7 or 8, which is characterized in that the polyolefin
Plastics are selected from least one of polypropylene, polyethylene, poly 1-butene.
10. according to the Environmental protection floor of polyolefin material described in claim 6,7 or 8, which is characterized in that the polyolefin
Elastomer is selected from least one of ethylene propylene diene rubber, ethylene-octene copolymer, ethylene-vinyl acetate copolymer.
11. according to the Environmental protection floor of polyolefin material described in claim 6,7 or 8, which is characterized in that the filler packet
Include at least one of mountain flour, wood powder, talcum powder, clay.
12. according to the Environmental protection floor of polyolefin material described in claim 6,7 or 8, which is characterized in that the auxiliary agent packet
Include 1-5 parts of antioxidant, 1-5 parts of coupling agent, 1-5 parts of lubricant, 0-5 parts of vulcanizing agent, 0-1 parts of vulcanization accelerator, colorant 0-3
Part.
13. a kind of preparation method of substrate layer according to claim 12, which comprises the steps of:
A. by coupling agent and mix lubricant, mixed liquor and filler is then taken to stir in high-speed stirred bucket, is filled out after processing is made
Material；
B. filler, polyolefin plastics, polyolefin elastomer, auxiliary agent after processing are sent into process equipment and substrate layer is made.
14. the preparation method of substrate layer according to claim 13, which is characterized in that the b step is after handling
Filler, polyolefin plastics, polyolefin elastomer, auxiliary agent are sent into ten thousand horsepowers of machines, by mixing, calendering, cooling, cut last system
Obtain substrate layer.
15. the preparation method of substrate layer according to claim 14, which is characterized in that the calendering technology temperature control
At 125-175 DEG C.
16. the preparation method of substrate layer according to claim 13, which is characterized in that the b step is after handling
Filler, polyolefin plastics, polyolefin elastomer, auxiliary agent are added in mixing plant, then stirring cooling passes through extrusion process system
At substrate layer.
17. a kind of manufacturing method of the Environmental protection floor of polyolefin material described in claim 1-8 any one, feature exist
In including the following steps:
A. wearing layer, decorative layer, substrate layer are bonded and semi-finished product is made；
B. using lamination, tempering, molding, fluting process finished product；
Wherein, semi-finished product are made using online attaching process is squeezed out in a step.
18. the manufacturing method of the Environmental protection floor of polyolefin material according to claim 17, which is characterized in that described squeezes
Online attaching process temperature is 160-190 DEG C out, is bonded roll gap 2-6mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783124.XA CN109025165A (en) | 2018-07-17 | 2018-07-17 | A kind of Environmental protection floor and its manufacturing method of polyolefin material |
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|---|---|---|---|
| CN201810783124.XA CN109025165A (en) | 2018-07-17 | 2018-07-17 | A kind of Environmental protection floor and its manufacturing method of polyolefin material |
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| CN109025165A true CN109025165A (en) | 2018-12-18 |
Family
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303698A (en) * | 2019-05-29 | 2019-10-08 | 惠州伟康新型建材有限公司 | A kind of EPC composite-structure floor manufacture craft of high resistance to deformation lower shrinkage |
| CN110593518A (en) * | 2019-08-27 | 2019-12-20 | 安徽森泰木塑科技地板有限公司 | Process for laminating wood-skin floor by biomass composite material, composite floor and used base material |
| CN111231437A (en) * | 2020-03-30 | 2020-06-05 | 安徽森泰木塑科技地板有限公司 | Indoor floor based on polyolefin biomass composite material and preparation process thereof |
| WO2020206753A1 (en) * | 2019-04-10 | 2020-10-15 | 镇江市朗悦塑业有限公司 | Environmentally-friendly weather-resistant composite strengthened board and preparation method therefor |
| CN111823662A (en) * | 2020-07-23 | 2020-10-27 | 惠州伟康新型建材有限公司 | Polypropylene floor with multilayer structure |
| CN112064977A (en) * | 2020-09-09 | 2020-12-11 | 惠州伟康新型建材有限公司 | Environment-friendly floor and manufacturing process thereof |
| CN112282293A (en) * | 2020-11-13 | 2021-01-29 | 明和科技（唐山）股份有限公司 | Wood-plastic floor and preparation method thereof |
| WO2022100525A1 (en) * | 2020-11-12 | 2022-05-19 | 常州市贝美家居科技有限公司 | Polypropylene plate and preparation method therefor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020206753A1 (en) * | 2019-04-10 | 2020-10-15 | 镇江市朗悦塑业有限公司 | Environmentally-friendly weather-resistant composite strengthened board and preparation method therefor |
| CN110303698A (en) * | 2019-05-29 | 2019-10-08 | 惠州伟康新型建材有限公司 | A kind of EPC composite-structure floor manufacture craft of high resistance to deformation lower shrinkage |
| CN110593518A (en) * | 2019-08-27 | 2019-12-20 | 安徽森泰木塑科技地板有限公司 | Process for laminating wood-skin floor by biomass composite material, composite floor and used base material |
| CN111231437A (en) * | 2020-03-30 | 2020-06-05 | 安徽森泰木塑科技地板有限公司 | Indoor floor based on polyolefin biomass composite material and preparation process thereof |
| WO2021196265A1 (en) * | 2020-03-30 | 2021-10-07 | 安徽森泰木塑科技地板有限公司 | Indoor floor based on polyolefin biomass composite material and manufacturing method for indoor floor |
| CN111823662A (en) * | 2020-07-23 | 2020-10-27 | 惠州伟康新型建材有限公司 | Polypropylene floor with multilayer structure |
| CN111823662B (en) * | 2020-07-23 | 2021-08-06 | 惠州伟康新型建材有限公司 | Polypropylene floor with multilayer structure |
| CN112064977A (en) * | 2020-09-09 | 2020-12-11 | 惠州伟康新型建材有限公司 | Environment-friendly floor and manufacturing process thereof |
| WO2022100525A1 (en) * | 2020-11-12 | 2022-05-19 | 常州市贝美家居科技有限公司 | Polypropylene plate and preparation method therefor |
| CN112282293A (en) * | 2020-11-13 | 2021-01-29 | 明和科技（唐山）股份有限公司 | Wood-plastic floor and preparation method thereof |
| CN112282293B (en) * | 2020-11-13 | 2022-02-08 | 明和科技（唐山）股份有限公司 | Wood-plastic floor and preparation method thereof |
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Application publication date: 20181218 |