CN108004794A - A kind of no-solvent type polyurethane leather and preparation method thereof - Google Patents
A kind of no-solvent type polyurethane leather and preparation method thereof Download PDFInfo
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- CN108004794A CN108004794A CN201711374284.0A CN201711374284A CN108004794A CN 108004794 A CN108004794 A CN 108004794A CN 201711374284 A CN201711374284 A CN 201711374284A CN 108004794 A CN108004794 A CN 108004794A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/121—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds
Abstract
The present invention relates to a kind of no-solvent type polyurethane leather and preparation method thereof, basic structure includes being sequentially stacked base cloth layer, water-based acrylic glue-line, no-solvent polyurethane foaming layer, no-solvent polyurethane epidermis and the aqueous surface-treating agent layer of setting up and down；The PU host agents and 100% PU curing agents of no-solvent polyurethane foaming layer therein and no-solvent polyurethane epidermis using 100%, water resistance is good, and molecular weight is high, it is not easy and reaction of moisture, product is stablized relatively, and product flexibility and resistance to tortuosity are preferable, non-secondary pollution.
Description
Technical field
The present invention relates to polyurethane leather technical field, is related specifically to a kind of no-solvent type polyurethane leather and its preparation
Method.
Background technology
Polyurethane (PU Polyurethane) leather is due to unique wearability, cold resistance, bending resistance, elongation
Rate is high, resistance to ozone, ageing-resistant, resistance to mould, low temperature resistant, resistance to complications, oil resistant, radiation resistance, can make flame-retardant materials, have
Good hydrolytic stability, the characteristics of pliability is good, tensile strength is big, also with PVC without gas permeability, in same rigidity
Under, it is higher than other elastomer bearing capacitys, resilience is good, gloss is natural, more than pattern the advantages that, in view of the polyurethane is all
More advantages, polyurethane leather product are commercially increasingly becoming mainstream at present.
Polyurethane leather primary structure of the prior art may be summarized to be from top to bottom be sequentially stacked setting printing layer,
Superficial layer, foaming layer, following layer resin and base cloth layer, for following layer resin majority using solvent type PU resins, these are molten
Agent is with hypertoxicity to human body with high risks and poor water resistance；Particularly, can be related in polyurethane leather preparation process
To a variety of toxic solvents, wet method preparation and dry process are mainly included in traditional preparation scheme at home, wet method mainly makes
With DMF (dimethylformamide), and dry method is then all had using toluene, dimethylbenzene, acetone, butanone, ethyl acetate, these solvents
Hypertoxicity, it is even more the health for seriously endangering human body not only to endanger air persecution atmosphere.
Have become those skilled in the art's cause it can be seen from the above that developing emerging polyurethane leather and innovating manufacture
Power is in the direction of research.
The content of the invention
The present invention is directed to above-mentioned technical problem, there is provided a kind of no-solvent type polyurethane leather and preparation method thereof, the hair
Solvent-free (100% solid) polyurethane of bright use and water-based acrylic/polyurethane following layer are environment-friendly materials, production and use
In plasticiser and organic solvent is not present, producers and consumer can be avoided to be compromised.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of no-solvent type polyurethane leather, wherein, including the base cloth layer of setting, water-based acrylic glue are sequentially stacked up and down
Layer, no-solvent polyurethane foaming layer, no-solvent polyurethane epidermis and aqueous surface-treating agent layer.
Preferably, above-mentioned no-solvent type polyurethane leather, wherein, the no-solvent polyurethane foaming layer each component
And its proportion by weight is：
Host agent SH-1040A (OH valencys 4)：1~200 part；
Curing agent SH-1040B (NCO valencys 3)：1~100 part；
Catalyst：0~5 part；
Foam powder：0~30 part；
Wherein, the host agent is hydroxyl-terminated polyurethane performed polymer, and the curing agent is terminal isocyanate group polyurethane prepolymer
Body.
Preferably, above-mentioned no-solvent type polyurethane leather, wherein, the no-solvent polyurethane epidermis each component
And its proportion by weight is：
Host agent SH-1040A (OH valencys 4)：1~200 part；
Curing agent SH-1040B (NCO valencys 3)：1~100 part；
Catalyst：0~5 part.
Preferably, above-mentioned no-solvent type polyurethane leather, wherein, the no-solvent polyurethane foaming layer each component
And its proportion by weight is：
Host agent SH-1040A (OH valencys 4)：50~150 parts；
Curing agent SH-1040B (NCO valencys 3)：20~80 parts；
Catalyst：1~3 part；
Foam powder：5~20 parts；
Wherein, the host agent is hydroxyl-terminated polyurethane performed polymer, and the curing agent is terminal isocyanate group polyurethane prepolymer
Body.
Preferably, above-mentioned no-solvent type polyurethane leather, wherein, the no-solvent polyurethane epidermis each component
And its proportion by weight is：
Host agent SH-1040A (OH valencys 4)：50~170 parts；
Curing agent SH-1040B (NCO valencys 3)：30~80 parts；
Catalyst：5 parts.
Preferably, above-mentioned no-solvent type polyurethane leather, wherein, the aqueous surface-treating agent layer gathers for water-based PC
The mixed layer of carbonic ester and color.
Preferably, the preparation method of above-mentioned no-solvent type polyurethane leather, wherein, the preparation method includes：
Step S1, the process layer based on the base fabric layer surface coats one layer of water-based acrylic glue-line；
Step S2, host agent hydroxyl-terminated polyurethane performed polymer and curing agent terminal isocyanate group base polyurethane prepolymer for use as 2 are equipped with:1,
Additional catalyst, foam powder carry out being uniformly mixed stirring, filtering composition no-solvent polyurethane foaming layer；
Step S3, the no-solvent polyurethane foaming layer is coated on the based process layer, and carries out baking oven heating；
Step S4, host agent hydroxyl-terminated polyurethane performed polymer and curing agent terminal isocyanate group base polyurethane prepolymer for use as 2 are equipped with:1,
Additional catalyst is uniformly mixed stirring, filtering forms the no-solvent polyurethane epidermis, afterwards by the no-solvent polyurethane
Epidermis is coated in no-solvent polyurethane foaming layer surface；
Step S5, the aqueous surface-treating agent layer is controlled into thickness 3 coated on the no-solvent polyurethane epidermis
Silk, and carry out 120 DEG C of baking oven heating 1min processing.
Preferably, the preparation method of above-mentioned no-solvent type polyurethane leather, wherein, in step S3, by described without molten
Agent polyurethane foaming layer carries out 120 DEG C of baking oven heating 1min afterwards coated in thickness 12 is controlled on the based process layer.
Preferably, the preparation method of above-mentioned no-solvent type polyurethane leather, wherein, in step S4, by described without molten
Agent polyurethane surface layer also needs to carry out 120 DEG C of baking oven coated in thickness 10 is controlled in no-solvent polyurethane foaming layer surface
Heat 1min processing.
Preferably, the preparation method of above-mentioned no-solvent type polyurethane leather, wherein, it is embossed wheel after step S5
Lines processing step.
Above-mentioned technical proposal has the following advantages that or beneficial effect：
1) for the present invention using the PU host agents and 100% PU curing agents of research and development 100%, completely solvent-free, water resistance is good, divides
Son amount is high, it is not easy to which, with reaction of moisture, product is stablized relatively.
2) foam powder is used, heating expands foam powder, makes the structure of no-solvent type polyurethane leather have bubble structure,
Increase the flexibility of leather and resistance to tortuosity.
3) plasticiser and organic solvent is not present in production and use, producers and consumer can be avoided to be endangered
Evil, and non-secondary pollution.
Brief description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the present invention and its feature, outer
Shape and advantage will become more apparent.Identical mark indicates identical part in whole attached drawings.Not can according to than
Example draws attached drawing, it is preferred that emphasis is shows the purport of the present invention.
Fig. 1 is the structure diagram of no-solvent type polyurethane leather of the present invention；
Fig. 2 is the preparation technology flow chart of no-solvent type polyurethane leather of the present invention.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not as the limit of the present invention
It is fixed.
Structure as shown in Figure 1, no-solvent type polyurethane leather of the present invention constructively mainly include up and down successively
Stacked base cloth layer 1, water-based acrylic glue-line 2, no-solvent polyurethane foaming layer 3, no-solvent polyurethane epidermis 4 and the water set
Property surface treatment agent layer 5.
Specifically, in technical solution of the present invention, no-solvent polyurethane foaming layer can control shore hardness 30~110 it
Between, its each component and its proportion by weight are：
Host agent SH-1040A (OH valencys 4)：1~200 part；Curing agent SH-1040B (NCO valencys 3)：1~100 part；Catalyst：0
~5 parts；Foam powder：0~30 part；Wherein, host agent is hydroxyl-terminated polyurethane performed polymer, and curing agent is isocyanate terminated based polyurethanes
Performed polymer；OH refers to functional group's (quantity of the OH in polyol), and NCO refers to the quantity of isocyanates.Have in the present invention
In body embodiment, using the microcapsule coated catalyst voluntarily researched and developed, its function is in low-temperature condition, does not have catalytic capability,
When temperature reaches 80 DEG C, microcapsules rupture disengages labilizer, and side has the function of catalysis.Preferably, foam powder is in host agent
Make its expansion while heating and react with curing agent, make no-solvent type polyurethane leather that there is foaming effect.
Preferably, aqueous surface-treating agent layer is water-based PC makrolon and the mixed layer of color；
Further, between no-solvent polyurethane epidermis can control shore hardness 30~110, its each component and its
Proportion by weight is：Host agent SH-1040A (OH valencys 4)：1~200 part；Curing agent SH-1040B (NCO valencys 3)：1~100 part；Urge
Agent：0~5 part.
In yet another aspect, it is preferred that no-solvent polyurethane foaming layer each component and its proportion by weight are：Host agent
SH-1040A (OH valencys 4)：50~150 parts；Curing agent SH-1040B (NCO valencys 3)：20~80 parts；Catalyst：1~3 part；Foaming
Powder：5~20 parts.
No-solvent polyurethane epidermis each component and its proportion by weight are：Host agent SH-1040A (OH valencys 4)：50~
170 parts；Curing agent SH-1040B (NCO valencys 3)：30~80 parts；Catalyst：5 parts.
Host agent SH-1040A (OH valencys 4) of the present invention and curing agent SH-1040B (NCO valencys 3) can react to obtain polyurethane pre-
Aggressiveness, adds other materials further to form above-mentioned no-solvent polyurethane foaming layer and no-solvent polyurethane epidermis, its
Fundamental reaction principle such as following table one：
Table one：Reaction mechanism
With reference to specific embodiment no-solvent type polyurethane leather of the present invention to be described in detail.
Scheme one：
No-solvent polyurethane foaming layer shore hardness 40,200 parts of host agent SH-1040A (OH valencys 4), curing agent SH-1040B
100 parts of (NCO valencys 3), 1 part of catalyst；10 parts of foam powder.
No-solvent polyurethane epidermis shore hardness 40,200 parts of host agent SH-1040A (OH valencys 4), curing agent SH-1040B
100 parts of (NCO valencys 3), 1 part of catalyst；
The physical property of no-solvent type polyurethane leather according to prepared by scheme one such as table two：
Table two：The physical property of no-solvent type polyurethane leather
| Project | Test value |
| Thickness mm | 1.1mm |
| Base weight g/M2 | 600 |
| Splitting Kg | 12 |
| Hardness | 40 |
| Peel strength Kg/3cm | Material is broken |
| Tearing strength Kg | 8 |
| Anti- broken intensity | 27 |
| The resistance to complications of room temperature | >100,000 |
| The resistance to complications of low temperature | >100,000 |
| Hydrolysis (Jungle Test) | 70 DEG C of * 95%RH*7week |
| Wear-resisting (Abrasion) | >100,000 |
| It is wear-resisting | >300,000 |
Scheme two：
No-solvent polyurethane foaming layer shore hardness 50,200 parts of host agent SH-1040A (OH valencys 4), curing agent SH-1040B
100 parts of (NCO valencys 3), 1 part of catalyst；10 parts of foam powder.
No-solvent polyurethane epidermis shore hardness 50,200 parts of host agent SH-1040A (OH valencys 4), curing agent SH-1040B
100 parts of (NCO valencys 3), 1 part of catalyst；
The physical property of no-solvent type polyurethane leather according to prepared by scheme two such as table three：
Table three：The physical property of no-solvent type polyurethane leather
Scheme three：
No-solvent polyurethane foaming layer shore hardness 60,200 parts of host agent SH-1040A (OH valencys 4), curing agent SH-1040B
100 parts of (NCO valencys 3), 1 part of catalyst；10 parts of foam powder.
No-solvent polyurethane epidermis shore hardness 60,200 parts of host agent SH-1040A (OH valencys 4), curing agent SH-1040B
100 parts of (NCO valencys 3), 1 part of catalyst；
The physical property of no-solvent type polyurethane leather according to prepared by scheme three such as table four：
Table four：The physical property of no-solvent type polyurethane leather
For above-mentioned no-solvent type polyurethane leather, present invention also offers a kind of preparation of no-solvent type polyurethane leather
Method, as shown in Fig. 2, its specific steps includes：
Step S1, the process layer based on base fabric layer surface coats one layer of water-based acrylic glue-line；
Step S2, host agent hydroxyl-terminated polyurethane performed polymer and curing agent terminal isocyanate group base polyurethane prepolymer for use as 2 are equipped with:1,
Additional catalyst, foam powder carry out being uniformly mixed stirring, filtering (200mesh) composition no-solvent polyurethane foaming layer；
Step S3, no-solvent polyurethane foaming layer is coated on the based process layer, and carries out baking oven heating；At this
Invent in optional but non-limiting embodiment, it is preferred that no-solvent polyurethane foaming layer is coated on based process layer and controls
Thickness 12, carries out 120 DEG C of baking oven heating 1min afterwards, and PU leathers are expanded because foam powder heats at this time, its foaming layer is about swollen
It is swollen to 30.
Step S4, host agent hydroxyl-terminated polyurethane performed polymer and curing agent terminal isocyanate group base polyurethane prepolymer for use as 2 are equipped with:1,
Additional catalyst is uniformly mixed stirring, filtering (200mesh) forms the no-solvent polyurethane epidermis, afterwards by described without molten
Agent polyurethane surface layer is coated in no-solvent polyurethane foaming layer surface.In optional but non-limiting embodiment of the invention
In, it is preferred that by no-solvent polyurethane epidermis coated in thickness 10 is controlled in no-solvent polyurethane foaming layer surface, also need
Carry out 120 DEG C of baking oven heating 1min processing.
Step S5, aqueous surface-treating agent layer is controlled thickness 3, gone forward side by side coated on no-solvent polyurethane epidermis
The baking oven heating 1min processing that 120 DEG C of row, is finally embossed wheel lines processing step (ignoring).
In conclusion PU host agent and 100% PU curing agent of the no-solvent type polyurethane leather of the present invention using 100%,
Completely solvent-free, water resistance is good, and molecular weight is high, it is not easy to which, with reaction of moisture, product is stablized relatively；And using foam powder, add
Heat expands foam powder, makes the structure of no-solvent type polyurethane leather have bubble structure, increases the flexibility of leather and resistance to song
Folding endurance.The no-solvent type polyurethane leather can avoid production people because plasticiser and organic solvent are not present in production and use
Member and consumer are compromised, and non-secondary pollution, can widely use, good market prospect.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply；Any those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the disclosure above
Methods and technical content many possible changes and modifications are made to technical solution of the present invention, or be revised as equivalent variations etc.
Embodiment is imitated, this has no effect on the substantive content of the present invention.Therefore, every content without departing from technical solution of the present invention, foundation
The technical spirit of the present invention still falls within the present invention to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of technical solution protection.
Claims (10)
1. a kind of no-solvent type polyurethane leather, it is characterised in that including the base cloth layer for being sequentially stacked setting up and down, water-based Asia gram
Power glue-line, no-solvent polyurethane foaming layer, no-solvent polyurethane epidermis and aqueous surface-treating agent layer.
2. no-solvent type polyurethane leather according to claim 1, it is characterised in that the no-solvent polyurethane foaming layer
Each component and its proportion by weight are：
Host agent SH-1040A (OH valencys 4)：1~200 part；
Curing agent SH-1040B (NCO valencys 3)：1~100 part；
Catalyst：0~5 part；
Foam powder：0~30 part；
Wherein, the host agent is hydroxyl-terminated polyurethane performed polymer, and the curing agent is terminal isocyanate group base polyurethane prepolymer for use as.
3. no-solvent type polyurethane leather according to claim 2, it is characterised in that the no-solvent polyurethane epidermis
Each component and its proportion by weight are：
Host agent SH-1040A (OH valencys 4)：1~200 part；
Curing agent SH-1040B (NCO valencys 3)：1~100 part；
Catalyst：0~5 part.
4. no-solvent type polyurethane leather according to claim 1, it is characterised in that the no-solvent polyurethane foaming layer
Each component and its proportion by weight are：
Host agent SH-1040A (OH valencys 4)：50~150 parts；
Curing agent SH-1040B (NCO valencys 3)：20~80 parts；
Catalyst：1~3 part；
Foam powder：5~20 parts；
Wherein, the host agent is hydroxyl-terminated polyurethane performed polymer, and the curing agent is terminal isocyanate group base polyurethane prepolymer for use as.
5. no-solvent type polyurethane leather according to claim 4, it is characterised in that the no-solvent polyurethane epidermis
Each component and its proportion by weight are：
Host agent SH-1040A (OH valencys 4)：50~170 parts；
Curing agent SH-1040B (NCO valencys 3)：30~80 parts；
Catalyst：5 parts.
6. no-solvent type polyurethane leather according to claim 1, it is characterised in that the aqueous surface-treating agent layer is
The mixed layer of water-based PC makrolon and color.
7. according to the preparation method of any no-solvent type polyurethane leather of claim 1~6, it is characterised in that the system
Preparation Method includes：
Step S1, the process layer based on the base fabric layer surface coats one layer of water-based acrylic glue-line；
Step S2, host agent hydroxyl-terminated polyurethane performed polymer and curing agent terminal isocyanate group base polyurethane prepolymer for use as 2 are equipped with:1, add
Catalyst, foam powder carry out being uniformly mixed stirring, filtering composition no-solvent polyurethane foaming layer；
Step S3, the no-solvent polyurethane foaming layer is coated on the based process layer, and carries out baking oven heating；
Step S4, host agent hydroxyl-terminated polyurethane performed polymer and curing agent terminal isocyanate group base polyurethane prepolymer for use as 2 are equipped with:1, add
Catalyst is uniformly mixed stirring, filtering forms the no-solvent polyurethane epidermis, afterwards by the no-solvent polyurethane epidermis
Layer is coated in no-solvent polyurethane foaming layer surface；
Step S5, the aqueous surface-treating agent layer is controlled into thickness 3 coated on the no-solvent polyurethane epidermis,
And carry out 120 DEG C of baking oven heating 1min processing.
8. the preparation method of no-solvent type polyurethane leather according to claim 7, it is characterised in that, will in step S3
The no-solvent polyurethane foaming layer carries out 120 DEG C of baking oven afterwards coated in thickness 12 is controlled on the based process layer
Heat 1min.
9. the preparation method of no-solvent type polyurethane leather according to claim 7, it is characterised in that, will in step S4
The no-solvent polyurethane epidermis also needs carry out 120 coated in thickness 10 is controlled in no-solvent polyurethane foaming layer surface
DEG C baking oven heating 1min processing.
10. the preparation method of no-solvent type polyurethane leather according to claim 7, it is characterised in that after step S5
It is embossed wheel lines processing step.
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Cited By (4)
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| CN109137551A (en) * | 2018-09-21 | 2019-01-04 | 浙江禾欣新材料有限公司 | A kind of high antifungal gene polyurethane leather of two-sided foaming |
| CN109468853A (en) * | 2018-09-21 | 2019-03-15 | 浙江禾欣新材料有限公司 | A kind of preparation method of the high antifungal gene polyurethane leather of two-sided foaming |
| CN109530190A (en) * | 2018-09-11 | 2019-03-29 | 东莞市雄林新材料科技股份有限公司 | A kind of automobile artificial leather texture polyurethane leather and preparation method thereof |
| CN113119557A (en) * | 2019-12-31 | 2021-07-16 | 苏州瑞高新材料有限公司 | Modified TPU (thermoplastic polyurethane) coating piece for vehicle and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109530190A (en) * | 2018-09-11 | 2019-03-29 | 东莞市雄林新材料科技股份有限公司 | A kind of automobile artificial leather texture polyurethane leather and preparation method thereof |
| CN109137551A (en) * | 2018-09-21 | 2019-01-04 | 浙江禾欣新材料有限公司 | A kind of high antifungal gene polyurethane leather of two-sided foaming |
| CN109468853A (en) * | 2018-09-21 | 2019-03-15 | 浙江禾欣新材料有限公司 | A kind of preparation method of the high antifungal gene polyurethane leather of two-sided foaming |
| CN113119557A (en) * | 2019-12-31 | 2021-07-16 | 苏州瑞高新材料有限公司 | Modified TPU (thermoplastic polyurethane) coating piece for vehicle and preparation method thereof |
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Inventor after: Chen Yuwang Inventor before: Han Pinde Inventor before: Chen Yuwang |
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Application publication date: 20180508 |