CN108505352B - PVC coating vehicle canopy material and preparation method thereof - Google Patents

PVC coating vehicle canopy material and preparation method thereof Download PDF

Info

Publication number
CN108505352B
CN108505352B CN201810348017.4A CN201810348017A CN108505352B CN 108505352 B CN108505352 B CN 108505352B CN 201810348017 A CN201810348017 A CN 201810348017A CN 108505352 B CN108505352 B CN 108505352B
Authority
CN
China
Prior art keywords
pvc
coating
mass ratio
canopy
ultraviolet absorbent
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.)
Active
Application number
CN201810348017.4A
Other languages
Chinese (zh)
Other versions
CN108505352A (en
Inventor
沈中明
王洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Mingfeng Industry Co Ltd
Donghua University
Original Assignee
Zhejiang Mingfeng Industry Co Ltd
Donghua University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Mingfeng Industry Co Ltd, Donghua University filed Critical Zhejiang Mingfeng Industry Co Ltd
Priority to CN201810348017.4A priority Critical patent/CN108505352B/en
Publication of CN108505352A publication Critical patent/CN108505352A/en
Application granted granted Critical
Publication of CN108505352B publication Critical patent/CN108505352B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • D06N3/06—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 with polyvinylchloride or its copolymerisation products
    • D06N3/065—PVC together with other resins except polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on 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; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/04—Coating compositions based on 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; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C09D127/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • 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
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D06N3/005—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers obtained by blowing or swelling agent
    • 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
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
    • 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
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • 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
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/121—Permeability to gases, adsorption
    • D06N2209/123—Breathable
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/126—Permeability to liquids, absorption
    • D06N2209/128—Non-permeable
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1678—Resistive to light or to UV
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1692—Weather resistance
    • 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
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/26—Vehicles, transportation
    • D06N2211/261—Body finishing, e.g. headliners

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention discloses a PVC coating automotive canopy material and a preparation method thereof, wherein an immersion precipitation phase inversion method is adopted, PVC casting solution is coated on a fiber material in a scraping way, and then the fiber material is subjected to phase separation through air retention and water bath to obtain a microporous coating automotive canopy material; the ultraviolet screening agent, the absorbent and the hydrophobic auxiliary agent are added into the casting solution, so that the aging resistance of the automotive canopy material with the coating is improved. The invention avoids adding plasticizer into PVC coating and forms micropores through phase inversion, and is a waterproof, breathable and anti-aging vehicle canopy material.

Description

PVC coating vehicle canopy material and preparation method thereof
Technical Field
The invention relates to a high polymer composite material and a preparation method thereof, in particular to a PVC coating automobile canopy material and a preparation method thereof.
Background
The canopy material is a novel material which is developed rapidly in recent years, is a composite material integrating structure mechanics, material science and design science, and is a new economic growth point of textile industry. With the increase of the automobile holding amount and the increase of the automobile washing cost in China, more and more automobiles are covered with covers when being parked, so that the effect of protecting the automobiles is achieved. However, most automobiles are parked outdoors, so the automobile canopy material has good performances of water resistance, air permeability, outdoor aging resistance and the like. Polyvinyl chloride (PVC) has better aging resistance and is a coating material with higher cost performance. However, conventional PVC coating materials are substantially free of pores and have poor air permeability, which can affect the maintenance of automotive topcoats. However, if the PVC coating added with the chemical foaming agent is adopted, the obtained coating material has too large pore diameter, and the automobile can be wetted by the coating material with slightly large outdoor humidity, so that the canopy material cannot play a role in protecting the automobile.
When PVC is used as a soft material such as a coating, an auxiliary agent such as a plasticizer is usually added into the PVC, and the plasticizer has the problem of migrating to the surface of a product during use, which affects the use effect and the service life of the product.
In addition, as an outdoor product, an ultraviolet absorbent or an ultraviolet shielding agent, such as titanium dioxide, carbon black and the like, is usually added into a high molecular material, and the substances can effectively absorb or reflect light radiation in an ultraviolet region, so that the ultraviolet radiation cannot directly reach the interior of a polymer matrix, and the aging rate of the product is further slowed down. Benzophenone, benzotriazole, hindered amine and the like are commonly used ultraviolet absorbers.
Secondly, the common PVC coating is formed by adding a plasticizer into PVC resin, mixing the PVC resin by an extruder or a high-temperature mixing roll to melt PVC into a melt with certain fluidity, and then coating. And because PVC is a high molecular material which is easy to degrade at high temperature, a heat stabilizer is added in the formula. Therefore, when PVC is used as an outdoor coating material, a plasticizer, a heat stabilizer and a light stabilizer are added into the formulation. The three components are easy to interact with each other, the thermal stability and the ultraviolet light aging resistance of the formula are influenced, the service life of a product is finally influenced, and meanwhile, difficulty is brought to the cooperative selection of the three components, which is one of the reasons that the service life of PVC coating materials on the market is short.
Disclosure of Invention
The invention aims to solve the technical problems of poor waterproof performance, poor air permeability, easy aging and short service life of the existing automotive canopy material.
In order to solve the technical problem, in one aspect, the invention provides a canopy material for a PVC coated vehicle, which comprises a fiber material bottom layer and a PVC microporous coating surface layer;
the fiber material is one of woven fabric, spunlace nonwoven material, thermal bonding nonwoven material and spun-bonded nonwoven material, and the areal density of the fiber material is 35-75 g/square meter;
the PVC microporous coating is formed by coating PVC membrane casting liquid on the fiber material in a blade mode and then performing phase conversion, wherein the PVC membrane casting liquid contains inorganic nano powder, an ultraviolet absorbent and perfluorinated liquid;
the average pore diameter of the PVC microporous coating is 1.2-2.5 mu m, and the contact angle is 120-145 degrees.
Further, the inorganic nano powder is TiO2、SiO2And CaCO3At least one of the components, wherein the mass ratio of the PVC to the PVC is 1.5: 100-3.5: 100.
further, the ultraviolet absorbent is at least one of benzophenone, benzotriazole and hindered amine ultraviolet absorbent, and the mass ratio of the ultraviolet absorbent to PVC is 0.2: 100-0.5: 100.
further, the perfluorinated liquid is low-polymerization-degree perfluorinated polyether, the molecular weight of the perfluorinated liquid is 2000-5000, and the mass ratio of the perfluorinated liquid to PVC is 0.6: 100-1.2: 100.
on the other hand, the invention provides a preparation method of the PVC coating automotive canopy material, which comprises the following steps:
(1) selecting PVC with a certain polymerization degree, and dissolving the PVC in a solvent system to prepare a polymer solution with the mass percentage concentration of 8-15%;
(2) sequentially adding inorganic nano powder, polyethylene glycol, a pore-forming agent, an ultraviolet absorbent and perfluorinated liquid into the polymer solution according to a preset mass ratio, uniformly stirring, standing and defoaming to obtain a film-forming solution;
(3) coating the film forming solution on a fiber material by adopting a scraper coating process, staying in air for 10-30 s, and then staying in a water bath for 3-8 min to obtain a hood material for a newborn car;
(4) and (3) conveying the canopy material for the nascent vehicle into an oven at 85-100 ℃ for drying for 5-8 min to obtain the canopy material for the PVC coated vehicle.
Further, the solvent system is a mixture of one of Dimethylacetamide (DMAC), Dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) and 1-methylpyrrolidone (NMP), and the mass ratio of the two solvents is 1: 1-2: 1.
further, the pore-foaming agent is any one of isopropanol, acetone and n-butanol, and the mass ratio of the pore-foaming agent to the solvent system is 1: 5-1: 8.
further, the polymerization degree of the polyethylene glycol is 200-600, and the mass ratio of the polyethylene glycol to the solvent system is 1: 5-1: 8.
further, in the step (3), the gap of the scraper is controlled to be 0.2-0.5 mm; controlling the distance between the scraper and the water bath, and controlling the retention time of the fiber material in the air after the fiber material comes out from the gap of the scraper to be 10-30 s; the blade gap is the vertical distance between the blade and the fibrous material.
Further, the fiber material is one of woven fabric, spunlace nonwoven material, thermal bonding nonwoven material and spun-bonded nonwoven material, and the surface density of the fiber material is 35-75 g/square meter.
The invention adopts an immersion precipitation phase conversion method to scrape PVC membrane casting solution on a fiber material, and then the PVC membrane casting solution is separated from the fiber material through air retention and water bath to obtain the automotive canopy material with the PVC microporous coating, thereby achieving the effects of water resistance, ventilation and aging resistance. The addition of the inorganic nano powder can endow the surface roughness of the microporous coating with ultraviolet light shielding function, so as to solve the defects of insufficient waterproofness and poor aging resistance of the existing microporous membrane. The addition of the perfluorinated liquid can further improve the hydrophobic property of the material, which cannot be achieved by the conventional thermal forming PVC microporous membrane. The technical route of the invention also avoids the migration problem of the plasticizer in the conventional soft PVC coating in the using process, thereby providing a wider selection range for the ultraviolet absorbent and the shielding agent and having obvious innovation. The automotive canopy material has the remarkable advantages of water resistance, air permeability, outdoor aging resistance, long service life and the like.
Detailed Description
The present invention will now be described in further detail with reference to examples, but the present invention is not limited to the following examples, and any modifications made thereto will fall within the scope of the present invention.
The following examples are based primarily on a process for the preparation of PVC-coated automotive canopy materials by which the PVC-coated automotive canopy materials of the present invention are naturally obtained.
Example 1:
uniformly mixing DMAC and NMP according to the mass ratio of 1:1, gradually adding PVC with the polymerization degree of 800 into the solution according to the mass percentage concentration of 8%, and uniformly stirring;
further mixing the raw materials with a mixed solvent according to the mass ratio of 1:5 and 1:8, respectively adding polyethylene glycol with the polymerization degree of 200 and isopropanol into the solution, respectively adding benzophenone, TiO2 and perfluoropolyether liquid with the molecular weight of 2000 into the solution according to the mass ratio of 0.2:100, 1.5:100 and 0.6:100 of PVC, uniformly stirring, standing and defoaming to obtain a film forming solution;
controlling the gap of a scraper to be 0.2mm, and blade-coating the film-forming solution by adopting a scraper coating process until the surface density is 35g/m2The polypropylene spun-bonded non-woven material stays in the air for 10s, and then enters a water bath to stay for 3min to form the canopy material for the newborn car;
further drying the canopy material for the newborn vehicle in an oven at 85 ℃ for 8min to obtain the waterproof and breathable PVC coating canopy material for the vehicle, wherein the average pore diameter is 2.5 mu m, and the contact angle is 1200。
Example 2:
uniformly mixing DMF (dimethyl formamide) and NMP (N-methyl pyrrolidone) according to the ratio of 1:2, gradually adding PVC (polyvinyl chloride) with the polymerization degree of 1000 into the solution according to the ratio of 10% in mass percentage concentration, and uniformly stirring;
further mixing the raw materials with a mixed solvent in a ratio of 1:8 and 1:5, respectively adding polyethylene glycol with the polymerization degree of 400 and n-butyl alcohol into the solution, respectively adding hindered amine GW622, SiO2 and perfluoropolyether liquid with the molecular weight of 2000 into the solution according to the proportion of 0.5:100, 3.5:100 and 1.2:100 to PVC, uniformly stirring, standing and defoaming to obtain a film forming solution;
controlling the gap of a scraper to be 0.5mm, and blade-coating the film-forming solution to a dense surface by adopting a scraper coating processDegree of 75g/m2The polypropylene woven fabric stays in the air for 30s, and then enters a water bath to stay for 8min to become a hood material for a newborn car;
further drying the canopy material for the newborn vehicle in an oven at 100 ℃ for 3min to obtain the waterproof and breathable PVC coating canopy material for the vehicle, wherein the average pore diameter of the canopy material is 1.2 mu m, and the contact angle of the canopy material is 1450。
Example 3:
uniformly mixing DMSO and NMP according to the ratio of 1:1, gradually adding PVC with the polymerization degree of 1300 into the solution according to the ratio of 12% of mass percent concentration, and uniformly stirring;
further mixing the raw materials with a mixed solvent in a ratio of 1: 6 and 1:7, respectively adding polyethylene glycol with the polymerization degree of 600 and acetone into the solution, respectively adding oil-soluble benzotriazole, TiO2 and perfluoropolyether liquid with the molecular weight of 3000 into the solution according to the proportion of 0.4:100, 2:100 and 0.8:100 to PVC, uniformly stirring, standing and defoaming to obtain a film-forming solution;
controlling the gap of a scraper to be 0.4mm, and blade-coating the film-forming solution to an area density of 55g/m by adopting a scraper coating process2The viscose fiber spunlace non-woven material stays in the air for 20s, and then enters a water bath to stay for 6min to become a canopy material for a newborn car;
further drying the canopy material for the newborn vehicle in an oven at 90 ℃ for 8min to obtain the waterproof and breathable PVC coating canopy material for the vehicle, wherein the average pore diameter of the canopy material is 1.8 mu m, the contact angle of the canopy material is 1350。
In the embodiment, an immersion precipitation phase conversion method is adopted, the PVC membrane casting solution is coated on the fiber material in a blade mode, then the PVC membrane casting solution is subjected to phase separation through air residence and water bath, the PVC microporous coating automobile canopy material is obtained, and the waterproof, breathable and anti-aging effects can be achieved. The addition of the inorganic nano powder can endow the surface roughness of the microporous coating with ultraviolet light shielding function, so as to solve the defects of insufficient waterproofness and poor aging resistance of the existing microporous membrane. The addition of the perfluorinated liquid can further improve the hydrophobic property of the material, which cannot be achieved by the conventional thermal forming PVC microporous membrane. The technical route of the invention also avoids the migration problem of the plasticizer in the conventional soft PVC coating in the using process, and provides a wider selection range for the ultraviolet absorbent and the screening agent.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (1)

  1. The preparation method of the PVC coating automotive canopy material is characterized by comprising the following steps:
    (1) selecting PVC with the polymerization degree of 800-1300, and dissolving the PVC in a solvent system to prepare a polymer solution with the mass percentage concentration of 8-15%;
    (2) sequentially adding inorganic nano powder, polyethylene glycol, a pore-forming agent, an ultraviolet absorbent and perfluorinated liquid into the polymer solution according to a preset mass ratio, uniformly stirring, standing and defoaming to obtain a film-forming solution;
    (3) coating the film forming solution on a fiber material by adopting a scraper coating process, staying in air for 10-30 s, and then staying in a water bath for 3-8 min to obtain a hood material for a newborn car;
    (4) the cover material for the nascent vehicle is sent into an oven at the temperature of 85-100 ℃ to be dried for 5-8 min, so that the cover material for the nascent vehicle with the PVC coating is obtained;
    the inorganic nano powder is TiO2、SiO2And CaCO3At least one of the components, wherein the mass ratio of the PVC to the PVC is 1.5: 100-3.5: 100, respectively;
    the ultraviolet absorbent is at least one of benzophenone, benzotriazole and hindered amine ultraviolet absorbent, and the mass ratio of the ultraviolet absorbent to PVC is 0.2: 100-0.5: 100, respectively;
    the perfluorinated liquid is low-polymerization-degree perfluorinated polyether, the molecular weight of the perfluorinated liquid is 2000-5000, and the mass ratio of the perfluorinated liquid to PVC is 0.6: 100-1.2: 100, respectively;
    the solvent system is a mixture of one of Dimethylacetamide (DMAC), Dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) and 1-methylpyrrolidone (NMP), and the mass ratio of the two solvents is 1: 1-2: 1;
    the pore-foaming agent is any one of isopropanol, acetone and n-butanol, and the mass ratio of the pore-foaming agent to the solvent system is 1: 5-1: 8;
    the polymerization degree of the polyethylene glycol is 200-600, and the mass ratio of the polyethylene glycol to the solvent system is 1: 5-1: 8;
    the fiber material is one of woven fabric, spunlace nonwoven material, thermal bonding nonwoven material and spun-bonded nonwoven material, and the areal density of the fiber material is 35-75 g/square meter.
CN201810348017.4A 2018-04-18 2018-04-18 PVC coating vehicle canopy material and preparation method thereof Active CN108505352B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810348017.4A CN108505352B (en) 2018-04-18 2018-04-18 PVC coating vehicle canopy material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810348017.4A CN108505352B (en) 2018-04-18 2018-04-18 PVC coating vehicle canopy material and preparation method thereof

Publications (2)

Publication Number Publication Date
CN108505352A CN108505352A (en) 2018-09-07
CN108505352B true CN108505352B (en) 2021-05-14

Family

ID=63382767

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810348017.4A Active CN108505352B (en) 2018-04-18 2018-04-18 PVC coating vehicle canopy material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108505352B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296016A (en) * 1963-10-31 1967-01-03 Goodrich Co B F Production of microporous coating on substrate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296016A (en) * 1963-10-31 1967-01-03 Goodrich Co B F Production of microporous coating on substrate

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Fabrication of ordered honeycomb porous polyvinyl chloride (PVC) films by breath figures method;Chun-Xia Liu;《Materials Letters》;20130601(第107期);第52-55页 *
Three-Dimensionally Conformal Porous Microstructured Fabrics via Breath Figures: A Nature-Inspired Approach for Novel Surface Modification of Textiles;Jianliang Gong;《scientific reports》;20170524;第7卷(第2354期);第1-9页 *

Also Published As

Publication number Publication date
CN108505352A (en) 2018-09-07

Similar Documents

Publication Publication Date Title
CN108711603A (en) Coloured ceramic coated film of a kind of aramid fiber polymeric compound coating and preparation method thereof
CN107170942A (en) A kind of high-temperature resistant aramid fiber lithium ion battery composite separation membrane and preparation method thereof
CN102068924B (en) Polytetrafluoroethylene composite membrane and preparation method thereof
ES2579754T3 (en) Reinforced separator with a band and continuous production method
CN107570020B (en) Polyarylene sulfide sulfone composite separation membrane and preparation method thereof
CN111019332B (en) Polyurethane waterproof moisture-permeable film and preparation method thereof
JP6444427B2 (en) Coated microporous materials with filtration and adsorption properties and their use in fluid purification processes
WO2010021474A2 (en) Porous membrane and preparation method thereof
KR101425373B1 (en) Asymmetric composite membrane of silicone polymer and preparing method of the same
CN111760461B (en) Preparation method of polyvinylidene fluoride mixed matrix membrane
CN111266016A (en) Preparation method of separation membrane with adjustable and controllable pore diameter and separation membrane prepared by preparation method
CN105879710A (en) Polyvinylidene fluoride based micro-pore film and preparation method thereof
Kou et al. Fabrication of polyphenylene sulfide nanofibrous membrane via sacrificial templated-electrospinning for fast gravity-driven water-in-oil emulsion separation
CN105390643A (en) Lithium ion battery composite separation membrane and lithium ion battery containing lithium ion battery composite separation membrane
CN107732108A (en) A kind of electrochemical appliance barrier film and preparation method thereof
CN108505352B (en) PVC coating vehicle canopy material and preparation method thereof
CN102151498A (en) Nanometer cross-linking PVDF/PU blending hollow fiber ultrafiltration membrane and preparation method
JP2016531965A (en) Microporous material
WO2016072554A1 (en) Porous hollow fiber membrane and method for manufacturing same
US20230357986A1 (en) Breathable layered flexible material, methods and uses thereof
KR20130060737A (en) Porous separation membrane and preparation method thereof
Rabiee et al. Preparation and characterization of PVC/PAN blend ultrafiltration membranes: effect of PAN concentration and PEG with different molecular weight
CN111282446A (en) Preparation method of dehumidification membrane for solution dehumidification system
CN105854650A (en) Anti-fouling high-throughput polysulfone composite membrane
JP7020654B2 (en) Anion exchange membrane and its manufacturing method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: No.7 Badu Road, Chicheng street, Tiantai County, Taizhou City, Zhejiang Province

Applicant after: Zhejiang Mingfeng Industry Co., Ltd

Applicant after: DONGHUA University

Address before: 317200 eight industrial zone, Chicheng street, Tiantai County, Zhejiang, Taizhou

Applicant before: ZHEJIANG MINGFENG CAR ACCESSORIES Co.,Ltd.

Applicant before: DONGHUA University

CB02 Change of applicant information
GR01 Patent grant
GR01 Patent grant