CN112519361A - Cladding piece and preparation method and application thereof - Google Patents

Cladding piece and preparation method and application thereof Download PDF

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Publication number
CN112519361A
CN112519361A CN202011383036.4A CN202011383036A CN112519361A CN 112519361 A CN112519361 A CN 112519361A CN 202011383036 A CN202011383036 A CN 202011383036A CN 112519361 A CN112519361 A CN 112519361A
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China
Prior art keywords
parts
stabilizer
elastomer
modified pvc
member according
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Application number
CN202011383036.4A
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Chinese (zh)
Inventor
高金岗
尹明杰
高义辉
李超
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Suzhou Greentech Material Co ltd
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Suzhou Greentech Material Co ltd
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Priority to CN202011383036.4A priority Critical patent/CN112519361A/en
Publication of CN112519361A publication Critical patent/CN112519361A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2274/00—Thermoplastic elastomer material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • 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
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3009—Sulfides
    • 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
    • C08K3/38—Boron-containing compounds
    • C08K2003/387—Borates
    • 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
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention relates to the technical field of automotive interior trim, and particularly provides a cladding piece and a preparation method and application thereof. The invention provides a cladding piece, which comprises a base cloth, a modified PVC layer and a surface treatment layer from bottom to top; the modified PVC layer is prepared from the raw materials of, by weight, 10-15 parts of an elastomer, 50-65 parts of PVC particles, 0.5-2.5 parts of a stabilizer and 0.3-3 parts of a flame retardant; the preparation raw materials of the surface treatment layer comprise 40-60 parts of treating agent, 1-8 parts of cross-linking agent and 0.5-5 parts of wear-resistant auxiliary agent.

Description

Cladding piece and preparation method and application thereof
Technical Field
The invention relates to the technical field of automotive interior trim, and particularly provides a cladding piece and a preparation method and application thereof.
Background
With the rapid development of economy, people increasingly demand environment-friendly materials, and Thermoplastic polyurethane elastomers (PVC) belong to environment-friendly materials, have good recycling performance, and reduce environmental pollution. However, the properties such as weather resistance and mechanical properties of PVC are all deficient, so the research on modifying PVC is the focus of researchers.
The patent with the application number of 201810790737.6 discloses a modified PVC (polyvinyl chloride) automobile covering part and a preparation method thereof, and the prepared covering part has low VOC content and low odor, but the weather resistance and the mechanical property of the covering part are not well improved, so that the further application of the covering part is limited.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cladding piece in a first aspect, which comprises a base cloth, a modified PVC layer and a surface treatment layer from bottom to top; the modified PVC layer is prepared from the raw materials of, by weight, 10-15 parts of an elastomer, 50-65 parts of PVC particles, 0.5-2.5 parts of a stabilizer and 0.3-3 parts of a flame retardant; the preparation raw materials of the surface treatment layer comprise 40-60 parts of treating agent, 1-8 parts of cross-linking agent and 0.5-5 parts of wear-resistant auxiliary agent.
As a preferred technical scheme of the invention, the elastomer is a thermoplastic elastomer, and is selected from one or a combination of more of styrene thermoplastic elastomers, polyurethane thermoplastic elastomers, polyolefin thermoplastic elastomers and polyamide thermoplastic elastomers.
In a preferred embodiment of the present invention, the polyurethane thermoplastic elastomer has a density of 0.9 to 1.3g/cm3。
As a preferable technical scheme of the invention, the specific gravity of the PVC particles is 1-1.3 g/cm3。
As a preferred technical scheme of the invention, the stabilizer is selected from one or a combination of more of potassium zinc stabilizer, barium zinc stabilizer, calcium zinc stabilizer, organic tin stabilizer and lead stabilizer.
As a preferred technical scheme of the invention, the stabilizing agent comprises a calcium zinc stabilizing agent and an organic tin stabilizing agent; the mass ratio of the calcium-zinc stabilizer to the organic tin stabilizer is (4-6): 1.
as a preferable technical scheme of the invention, the flame retardant is one or a combination of more of aluminum hydroxide, magnesium hydroxide, zinc borate and molybdenum ditelluride.
As a preferable technical scheme of the invention, the particle size of the aluminum hydroxide is 1000-1500 meshes.
The second aspect of the invention provides a preparation method of a cladding piece, which comprises the following steps:
(1) cleaning and drying the base cloth, printing a 509 adhesive on the surface of the base cloth, and baking;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring according to the parts by weight, then extruding by an extruder to obtain a casting film, forming a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer for stirring according to parts by weight, then coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC film
The invention provides application of a cladding piece in automobile interior trim parts.
Has the advantages that: the coating prepared by the invention comprises a base cloth, a modified PVC layer and a surface treatment layer from bottom to top; the TPU is added into the PVC in a blending mode by limiting specific preparation raw materials of the modified PVC layer, and the calcium zinc stabilizer and the organic tin stabilizer with specific contents are further added, so that the compatibility among all the components is better, the tensile strength and the tearing strength of a system can be improved, and the weather resistance of the system is improved; according to the invention, the surface treatment layer is formed by coating the specific preparation raw material on the surface of the coating, so that the VOC release amount and volatility of the coated piece are reduced, the environmental protection performance of the product is improved, and the requirement of automobile manufacturers on high quality of the interior materials is met.
Detailed Description
The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.
The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.
In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the number clearly indicates the singular.
In order to solve the technical problem, the invention provides a covering piece in a first aspect, which comprises a base cloth, a modified PVC layer and a surface treatment layer from bottom to top.
Base cloth
In one embodiment, the base fabric is a warp-knitted or weft-knitted fabric, and is made of polyester or polyester-cotton blended fabric.
In a preferred embodiment, the base cloth is purchased from B1238 of bellford.
Modified PVC layer
In one embodiment, the modified PVC layer is prepared from 10-15 parts by weight of elastomer, 50-65 parts by weight of PVC particles, 0.5-2.5 parts by weight of stabilizer and 0.3-3 parts by weight of flame retardant.
In a preferred embodiment, the modified PVC layer is prepared from 11-14 parts by weight of elastomer, 55-60 parts by weight of PVC particles, 1-2 parts by weight of stabilizer and 1-2 parts by weight of flame retardant.
In a more preferred embodiment, the modified PVC layer is prepared from 13 parts by weight of elastomer, 58 parts by weight of PVC particles, 1.5 parts by weight of stabilizer, and 1.5 parts by weight of flame retardant.
Elastic body
In one embodiment, the elastomer is a thermoplastic elastomer.
In a preferred embodiment, the thermoplastic elastomer is selected from one or more of styrene thermoplastic elastomers, polyurethane thermoplastic elastomers, polyolefin thermoplastic elastomers and polyamide thermoplastic elastomers.
In a more preferred embodiment, the thermoplastic elastomer is a polyurethane-based thermoplastic elastomer.
In a more preferred embodiment, the polyurethane thermoplastic elastomer has a density of 0.9 to 1.3g/cm3(ii) a More preferably, the polyurethane thermoplastic elastomer has a density of 1.22g/cm3。
In a more preferred embodiment, the polyurethane-based thermoplastic elastomer is purchased from taiwan tritron TPU T785.
The density is measured according to the test method of JIS K7311.
The polyurethane thermoplastic elastomer (TPU) is generally a linear polymer material obtained by addition polymerization of a long-chain polyol (polyether or polyester) having an average relative molecular mass of 600 to 4000, a chain extender having a relative molecular mass of 61 to 400 and a polyisocyanate. Long-chain polyol (polyether or polyester) in the main chain of TPU macromolecules forms a soft segment, the low-temperature performance, solvent resistance and weather resistance of the soft segment are mainly controlled, and a chain extender and polyisocyanate form a hard segment. Because the proportion of the hard and soft segments can be adjusted in a large range, the obtained thermoplastic polyurethane can be a soft elastomer and can also be a brittle high-modulus plastic.
The TPU has excellent wear resistance, oil resistance and cold resistance, has enough resistance to oxygen, ozone, radiation and the like, has high tensile strength and elongation at break as an elastomer, and also has excellent performances of small compression set, large bearing capacity and the like.
PVC granules
In one embodiment, the PVC particles have a specific gravity of 1 to 1.3g/cm3(ii) a Preferably, the TPO particles have a density of 1.25g/cm3。
In a more preferred embodiment, the PVC pellets are purchased from priwan A5DUB, usa.
The specific gravity is measured according to ASTM D792 test method.
Said poly(s)Vinyl Chloride (PVC) is one of the most productive general plastics, has the advantages of low cost, good processing performance, easy hardness adjustment, high limiting oxygen index and the like, but is found to influence the tensile strength and the tearing strength of a system in the application process, and when the specific gravity of PVC particles is controlled to be 1-1.3 g/cm3Further adding the mixture with the density of 0.9-1.3 g/cm3The polyurethane thermoplastic elastomer has good compatibility among all components, and not only can improve the tensile strength and the tearing strength of a system, but also can improve the weather resistance of the system.
Stabilizer
In one embodiment, the stabilizer is selected from one or more of potassium zinc stabilizer, barium zinc stabilizer, calcium zinc stabilizer, organic tin stabilizer, and lead stabilizer.
In a preferred embodiment, the stabilizers include calcium zinc stabilizers and organotin stabilizers.
In a more preferred embodiment, the mass ratio of the calcium zinc stabilizer to the organotin stabilizer is (4 to 6): 1; more preferably, the mass ratio of the calcium zinc stabilizer to the organotin stabilizer is 5: 1.
in a more preferred embodiment, the calcium zinc stabilizer is purchased from Galata Mark CZ2026, germany.
In a more preferred embodiment, the organotin stabilizer is a methyl tin stabilizer, purchased from methyl tin thermal stabilizer 181 from jinan xiangfeng great industries, ltd.
In the system of the invention, the applicant finds that the addition of the calcium-zinc stabilizer is beneficial to improving the compatibility of PVC and polyurethane thermoplastic elastomer, but sometimes brings about reduction of tensile strength and tear strength, and when an organic tin stabilizer is further added, particularly the organic tin stabilizer is selected to be a methyl tin stabilizer and the mass ratio of the calcium-zinc stabilizer to the organic tin stabilizer is controlled to be (4-6): 1, the above problems can be solved, the weather resistance of the system is further improved, and no crack occurs when the glass is placed at 130 ℃ for 5 hours and then placed at-20 ℃ for 24 hours.
Flame retardant
In one embodiment, the flame retardant is selected from the group consisting of aluminum hydroxide, magnesium hydroxide, zinc borate, and molybdenum ditelluride.
In a preferred embodiment, the flame retardant is aluminum hydroxide.
In a more preferred embodiment, the aluminum hydroxide has a particle size of 1000 to 1500 mesh; more preferably, the particle size of the aluminum hydroxide is 1250 mesh.
The adjuvant may be obtained from commercially available sources including, but not limited to, from jonan yuno chemical limited.
The applicant finds that aluminum hydroxide with the grain size of 1000-1500 meshes is added selectively, and the aluminum hydroxide has good dispersibility in a system, so that the tensile strength and the tearing strength are improved.
Surface treatment layer
In one embodiment, the raw materials for preparing the surface treatment layer comprise, by weight, 40-60 parts of a treatment agent, 1-8 parts of a cross-linking agent and 0.5-5 parts of a wear-resistant auxiliary agent.
In a preferred embodiment, the raw materials for preparing the surface treatment layer comprise 45-55 parts by weight of a treating agent, 3-4 parts by weight of a cross-linking agent and 2-6 parts by weight of a wear-resistant auxiliary agent.
In a more preferred embodiment, the raw materials for preparing the surface treatment layer comprise 48 parts by weight of the treatment agent, 3.5 parts by weight of the cross-linking agent and 4 parts by weight of the wear-resistant auxiliary agent.
Treating agent
In one embodiment, the treatment agent is a polycarbon-type aqueous treatment agent.
In a preferred embodiment, the polycarbon-type aqueous treating agent is a polycarbon-type aqueous polyurethane resin.
In a more preferred embodiment, the solid content of the polycarbon-type aqueous polyurethane resin is 25 to 35 wt%; more preferably, the solid content of the polycarbon-type aqueous polyurethane resin is 30 wt%.
In a more preferred embodiment, the polycarbon-type aqueous polyurethane resin is purchased from PU-406 of Steyr Fine chemical.
Crosslinking agent
In one embodiment, the crosslinking agent is selected from one or more of a diimine type crosslinking agent, an aziridine crosslinking agent, an isocyanate type crosslinking agent, and an oxazoline type crosslinking agent.
In a preferred embodiment, the crosslinking agent is an isocyanate-type crosslinking agent.
In a more preferred embodiment, the isocyanate-based crosslinker is purchased from 28-404 of Stahl Fine Chemicals.
Wear-resistant auxiliary
In one embodiment, the abrasion resistance aid is a silicone aid.
In a preferred embodiment, the organosilicon auxiliary agent is selected from one or more of US DOW KANGNING DC-57, US JUNCTION CHEMICAL 358 and Stahl HM-186.
In a more preferred embodiment, the silicone additive is Stahl HM-186.
The second aspect of the invention provides a preparation method of a cladding piece, which comprises the following steps:
(1) cleaning and drying the base cloth, printing a 509 adhesive on the surface of the base cloth, and baking;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring according to the parts by weight, then extruding by an extruder to obtain a casting film, forming a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
In a preferred embodiment, the method for preparing the covering member comprises the following steps:
(1) cleaning and drying the base cloth, printing the 509 adhesive on the surface of the base cloth, baking for 1-2 min at 130-140 ℃, and operating the speed of 25-29 m/min;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring at the stirring speed of 1000-1200 r/min, then extruding by an extruder to obtain a casting film with the thickness of 2-4 mm, forming a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
In a more preferred embodiment, the method of making the overmold includes the steps of:
(1) cleaning and drying the base cloth, printing the 509 adhesive on the surface of the base cloth, baking for 1min at 135 ℃, and operating at the speed of 28 m/min;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring at the stirring speed of 1100r/min, extruding by an extruder to obtain a casting film with the thickness of 3mm to form a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
The third aspect of the invention provides application of the cladding piece to automotive interior trim parts.
Examples
In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention. In addition, the starting materials used are all commercially available, unless otherwise specified.
Example 1
The embodiment 1 of the invention provides a cladding piece which comprises a base cloth, a modified PVC layer and a surface treatment layer from bottom to top.
The modified PVC layer is prepared from the raw materials of 11 parts of elastomer, 55 parts of PVC particles, 1 part of stabilizer and 1 part of flame retardant in parts by weight.
The elastomer is a thermoplastic elastomer; the thermoplastic elastomer is a polyurethane thermoplastic elastomer; the density of the polyurethane thermoplastic elastomer is 1.22g/cm3Purchased from taiwan as trice TPU T785.
The PVC pellets were purchased from priwan A5DUB, usa.
The PVC pellets were purchased from A5DUB of priwan, usa; the mass ratio of the calcium zinc stabilizer to the organic tin stabilizer is 4: 1.
the calcium zinc stabilizer is purchased from Galata Mark CZ2026, germany; the organic tin stabilizer is a methyl tin stabilizer which is purchased from a methyl tin heat stabilizer 181 of Jinan Xiangfeng Wei industrial chemical company Limited.
The flame retardant is aluminum hydroxide and is purchased from the chemical company Limited of Yuno, Jinan.
The preparation raw materials of the surface treatment layer comprise 45 parts of treating agent, 3 parts of cross-linking agent and 2 parts of wear-resistant auxiliary agent in parts by weight.
The treating agent is a polycarbon type waterborne polyurethane resin which is purchased from PU-406 of Steyr fine chemical engineering company.
The cross-linking agent is an isocyanate type cross-linking agent, and is purchased from 28-404 of Starter Fine chemical company.
The wear-resistant auxiliary agent is Stahl HM-186.
The preparation method of the cladding piece comprises the following steps:
(1) cleaning and drying the base cloth, printing the 509 adhesive on the surface of the base cloth, baking for 1min at 135 ℃, and operating at the speed of 28 m/min;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring at the stirring speed of 1100r/min, extruding by an extruder to obtain a casting film with the thickness of 3mm to form a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
Example 2
The embodiment 2 of the invention provides a cladding piece which comprises a base cloth, a modified PVC layer and a surface treatment layer from bottom to top.
The modified PVC layer is prepared from the raw materials of 14 parts of elastomer, 60 parts of PVC particles, 2 parts of stabilizer and 2 parts of flame retardant in parts by weight.
The elastomer is a thermoplastic elastomer; the thermoplastic elastomer is a polyurethane thermoplastic elastomer; the density of the polyurethane thermoplastic elastomer is 1.22g/cm3Purchased from taiwan as trice TPU T785.
The PVC pellets were purchased from priwan A5DUB, usa.
The PVC pellets were purchased from A5DUB of priwan, usa; the mass ratio of the calcium zinc stabilizer to the organic tin stabilizer is 6: 1.
the calcium zinc stabilizer is purchased from Galata Mark CZ2026, germany; the organic tin stabilizer is a methyl tin stabilizer which is purchased from a methyl tin heat stabilizer 181 of Jinan Xiangfeng Wei industrial chemical company Limited.
The flame retardant is aluminum hydroxide and is purchased from the chemical company Limited of Yuno, Jinan.
The raw materials for preparing the surface treatment layer comprise 55 parts of treating agent, 4 parts of cross-linking agent and 6 parts of wear-resistant auxiliary agent in parts by weight.
The treating agent is a polycarbon type waterborne polyurethane resin which is purchased from PU-406 of Steyr fine chemical engineering company.
The cross-linking agent is an isocyanate type cross-linking agent, and is purchased from 28-404 of Starter Fine chemical company.
The wear-resistant auxiliary agent is Stahl HM-186.
The preparation method of the cladding piece comprises the following steps:
(1) cleaning and drying the base cloth, printing the 509 adhesive on the surface of the base cloth, baking for 1min at 135 ℃, and operating at the speed of 28 m/min;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring at the stirring speed of 1100r/min, extruding by an extruder to obtain a casting film with the thickness of 3mm to form a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
Example 3
Embodiment 3 of the present invention provides a covering member, including a base fabric, a modified PVC layer, and a surface treatment layer from bottom to top.
The preparation raw materials of the modified PVC layer comprise, by weight, 13 parts of elastomer, 58 parts of PVC particles, 1.5 parts of stabilizer and 1.5 parts of flame retardant.
The elastomer is a thermoplastic elastomer; the thermoplastic elastomer is a polyurethane thermoplastic elastomer; the density of the polyurethane thermoplastic elastomer is 1.22g/cm3Purchased from taiwan as trice TPU T785.
The PVC pellets were purchased from priwan A5DUB, usa.
The PVC pellets were purchased from A5DUB of priwan, usa; the mass ratio of the calcium zinc stabilizer to the organic tin stabilizer is 5: 1.
the calcium zinc stabilizer is purchased from Galata Mark CZ2026, germany; the organic tin stabilizer is a methyl tin stabilizer which is purchased from a methyl tin heat stabilizer 181 of Jinan Xiangfeng Wei industrial chemical company Limited.
The flame retardant is aluminum hydroxide and is purchased from the chemical company Limited of Yuno, Jinan.
The raw materials for preparing the surface treatment layer comprise 48 parts of treating agent, 3.5 parts of cross-linking agent and 4 parts of wear-resistant auxiliary agent in parts by weight.
The treating agent is a polycarbon type waterborne polyurethane resin which is purchased from PU-406 of Steyr fine chemical engineering company.
The cross-linking agent is an isocyanate type cross-linking agent, and is purchased from 28-404 of Starter Fine chemical company.
The wear-resistant auxiliary agent is Stahl HM-186.
The preparation method of the cladding piece comprises the following steps:
(1) cleaning and drying the base cloth, printing the 509 adhesive on the surface of the base cloth, baking for 1min at 135 ℃, and operating at the speed of 28 m/min;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring at the stirring speed of 1100r/min, extruding by an extruder to obtain a casting film with the thickness of 3mm to form a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
Example 4
Example 4 of the present invention provides a covering, which is similar to example 3, except that the polyurethane-based thermoplastic elastomer is purchased from taiwan japan TPU 891.
Example 5
Example 5 of the present invention provides a covering in accordance with the specific embodiment of example 3, except that the polyurethane-based thermoplastic elastomer was purchased from luobu 59010RETP TPU.
Example 6
Example 6 of the present invention provides a coating member, which is the same as example 3 in the specific implementation manner, except that the mass ratio of the calcium zinc stabilizer to the organotin stabilizer is 8: 1.
example 7
Example 7 of the present invention provides a clad member, which is similar to example 3 except that no calcium zinc stabilizer is present.
Example 8
Example 8 of the present invention provides a clad member, the embodiment of which is the same as example 3 except that no organotin stabilizer is present.
Performance testing
1. Tensile Strength test
Testing the tensile strength of the prepared cladding part according to the specification of 5.1.2-5.1.5 in GB/T1040.1-2006, and recording the average value of the tensile strength in the warp and weft directions; wherein, the mark A is that the tensile strength is more than or equal to 650N/cm; marking as B when the tensile strength is 400-650N/cm; the tensile strength is less than or equal to 400N/cm and is marked as C.
2. Tear Strength test
Testing the prepared coating piece according to the regulation of GB/T16578.1-2008, wherein the testing speed is 200 +/-10 mm/min, and recording the average value of the tearing strength in the warp and weft directions; wherein, the tearing strength is more than or equal to 75N and is marked as A; marking as B when the tearing strength is 40-75N; the tearing strength is marked as C when being less than or equal to 40N.
3. Weather resistance test
Placing the prepared clad piece at 130 ℃ for 5h, then placing the clad piece at-20 ℃ for 24h, and observing whether cracks appear; among them, those with no cracks were denoted by A, those with few cracks were denoted by B, and those with many cracks were denoted by C.
4. Odor test
Performing an odor test on the prepared cladding member according to PV3900, and recording the odor grade; wherein, the mark A with the odor grade of 2.5-3.0, the mark B with the odor grade of 3.0-3.5, and the mark C with the odor grade of not less than 3.5.
TABLE 1
Tensile strength Tear strength Weather resistance Odor test
Example 1 A A A A
Example 2 A A A A
Example 3 A A A A
Example 4 B B B /
Example 5 B B B /
Example 6 B B C /
Example 7 C C C /
Example 8 C C C /
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims (10)

1. A cladding piece is characterized by comprising base cloth, a modified PVC layer and a surface treatment layer from bottom to top; the modified PVC layer is prepared from the raw materials of, by weight, 10-15 parts of an elastomer, 50-65 parts of PVC particles, 0.5-2.5 parts of a stabilizer and 0.3-3 parts of a flame retardant; the preparation raw materials of the surface treatment layer comprise 40-60 parts of treating agent, 1-8 parts of cross-linking agent and 0.5-5 parts of wear-resistant auxiliary agent.
2. A covering member according to claim 1, wherein the elastomer is a thermoplastic elastomer selected from one or more of styrene thermoplastic elastomers, polyurethane thermoplastic elastomers, polyolefin thermoplastic elastomers, and polyamide thermoplastic elastomers.
3. A cladding member according to claim 2, wherein said polyurethane-based thermoplastic elastomer has a density of 0.9 to 1.3g/cm3。
4. A cladding member according to claim 3, wherein the specific gravity of said PVC particles is 1 to 1.3g/cm3。
5. A cladding member according to claim 4, wherein said stabilizer is selected from the group consisting of potassium zinc stabilizer, barium zinc stabilizer, calcium zinc stabilizer, organotin stabilizer, lead stabilizer, and combinations thereof.
6. A cladding member according to claim 5, wherein said stabilizer comprises a calcium zinc stabilizer and an organotin stabilizer; the mass ratio of the calcium-zinc stabilizer to the organic tin stabilizer is (4-6): 1.
7. a cladding member according to claim 1 or 6, wherein said fire retardant is selected from the group consisting of aluminium hydroxide, magnesium hydroxide, zinc borate and molybdenum ditelluride.
8. A cladding member according to claim 7, wherein the particle size of the aluminium hydroxide is 1000 to 1500 mesh.
9. A method of making a cladding member according to any one of claims 1 to 9, comprising the steps of:
(1) cleaning and drying the base cloth, printing a 509 adhesive on the surface of the base cloth, and baking;
(2) putting the elastomer, the PVC particles, the stabilizer and the flame retardant into a high-speed stirrer for stirring according to the parts by weight, then extruding by an extruder to obtain a casting film, forming a modified PVC layer, and compounding the modified PVC layer with the base cloth;
(3) and (2) adding the treating agent, the cross-linking agent and the wear-resistant auxiliary agent into a high-speed stirrer, stirring, coating the mixture on the surface of the modified PVC layer in a roll coating manner, and drying to obtain the modified PVC layer.
10. Use of a covering according to any of claims 1 to 9, in an automotive interior.
CN202011383036.4A 2020-11-30 2020-11-30 Cladding piece and preparation method and application thereof Pending CN112519361A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108164862A (en) * 2016-12-07 2018-06-15 上海凯波特种电缆料厂有限公司 A kind of electric automobile charging pile cable dumb light PVC sheath material and preparation method thereof
CN108729250A (en) * 2018-07-18 2018-11-02 苏州瑞高新材料有限公司 A kind of automobile-used coating member of modified PVC and preparation method thereof
CN108909125A (en) * 2018-07-18 2018-11-30 苏州瑞高新材料有限公司 It is a kind of to can be used as the PVC epidermis and preparation method thereof that mold uses
CN111363212A (en) * 2020-03-25 2020-07-03 伟能(广东)新材料有限公司 Damping material for automobile and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108164862A (en) * 2016-12-07 2018-06-15 上海凯波特种电缆料厂有限公司 A kind of electric automobile charging pile cable dumb light PVC sheath material and preparation method thereof
CN108729250A (en) * 2018-07-18 2018-11-02 苏州瑞高新材料有限公司 A kind of automobile-used coating member of modified PVC and preparation method thereof
CN108909125A (en) * 2018-07-18 2018-11-30 苏州瑞高新材料有限公司 It is a kind of to can be used as the PVC epidermis and preparation method thereof that mold uses
CN111363212A (en) * 2020-03-25 2020-07-03 伟能(广东)新材料有限公司 Damping material for automobile and preparation method thereof

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Application publication date: 20210319