CN107323020B - Silicone rubber polymer weather-resistant leather and preparation method thereof - Google Patents

Silicone rubber polymer weather-resistant leather and preparation method thereof Download PDF

Info

Publication number
CN107323020B
CN107323020B CN201710521787.XA CN201710521787A CN107323020B CN 107323020 B CN107323020 B CN 107323020B CN 201710521787 A CN201710521787 A CN 201710521787A CN 107323020 B CN107323020 B CN 107323020B
Authority
CN
China
Prior art keywords
rubber polymer
parts
silicone rubber
modified silicon
leather
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
CN201710521787.XA
Other languages
Chinese (zh)
Other versions
CN107323020A (en
Inventor
胥晓群
刘卫平
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.)
Shenzhen Tongxin Environmental Protection Rubber Products Co ltd
Original Assignee
Shenzhen Tongxin Environmental Protection Rubber Products Co ltd
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 Shenzhen Tongxin Environmental Protection Rubber Products Co ltd filed Critical Shenzhen Tongxin Environmental Protection Rubber Products Co ltd
Priority to CN201710521787.XA priority Critical patent/CN107323020B/en
Publication of CN107323020A publication Critical patent/CN107323020A/en
Application granted granted Critical
Publication of CN107323020B publication Critical patent/CN107323020B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/20—Layered products comprising a layer of natural or synthetic rubber comprising silicone rubber
    • 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
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different 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
    • 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
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/043—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • 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
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04—Polysiloxanes
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/212—Electromagnetic interference shielding
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/536—Hardness
    • 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
    • B32B2307/546—Flexural strength; Flexion stiffness
    • 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
    • B32B2307/552—Fatigue 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
    • B32B2307/70—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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/73—Hydrophobic
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention provides modified silicon rubber polymer weather-resistant leather and a preparation method thereof. The leather has special properties (weather resistance, high air permeability, chemical reagent resistance, high bending resistance, high surface hardness, high and low temperature resistance, heat-resistant adhesion, hydrophobicity, corrosion resistance and radiation resistance), and the application range of the organic silicon leather in special environments is expanded. Meanwhile, the manufacturing method is simple, continuous production can be realized, the efficiency is high, and no harmful substance or pollutant exists in the whole production process and the using process.

Description

Silicone rubber polymer weather-resistant leather and preparation method thereof
Technical Field
The invention relates to the field of artificial organic leather, in particular to silicon rubber polymer weather-resistant leather.
Background
At present, Polyurethane (PU) and polyvinyl chloride (PVC) are mainly used in the synthetic leather industry at home and abroad, the synthetic leather contains a large amount of harmful substances such as dimethylformamide, butanone, toluene and the like in the manufacturing and using processes, and decomposition products harmful to the environment and organisms such as hydrogen chloride, dioxin, hydrogen cyanide and the like are generated in the process of recycling and treating wastes of the synthetic leather. When used in daily life, PU and PVC synthetic leather have the defects of poor ageing resistance, poor temperature resistance, easy hydrolysis, easy contamination, poor air permeability, poor bending resistance, poor hot water resistance, excessive production procedures, resource waste and the like. The existing organic silicon leather needs to overcome the defects and obtain novel organic leather with high production efficiency and excellent lasting weather resistance.
Disclosure of Invention
In order to solve the technical problems, the invention discloses silicon rubber polymer weather-resistant leather which sequentially comprises a modified silicon rubber polymer layer, a liquid silicon rubber polymer adhesive layer and a base material layer, wherein alkyd modified silicon resin, polyester modified silicon resin, acrylic acid modified silicon resin, epoxy modified silicon resin, phenolic aldehyde modified silicon resin and polyimide modified silicon resin are added into the modified silicon rubber polymer layer and the liquid silicon rubber polymer adhesive layer.
Further, the modified silicone rubber polymer layer is prepared from the following raw materials in parts by weight:
10-50 parts of vinyl polysiloxane, 1-20 parts of alkyd modified silicon resin, 1-20 parts of polyester modified silicon resin, 1-20 parts of acrylic modified silicon resin, 1-20 parts of epoxy modified silicon resin, 1-20 parts of phenolic modified silicon resin, 1-20 parts of polyimide modified silicon resin, 0.01-2 parts of single-component platinum catalyst, 10-100 parts of filler and 0-10 parts of color paste.
Further, the liquid silicone rubber polymer adhesive layer is prepared from the following raw materials in parts by weight:
10-50 parts of vinyl polysiloxane, 1-10 parts of alkyd modified silicon resin, 1-10 parts of polyester modified silicon resin, 1-10 parts of acrylic modified silicon resin, 1-10 parts of epoxy modified silicon resin, 1-10 parts of phenolic modified silicon resin, 1-10 parts of polyimide modified silicon resin, 0.01-2 parts of single-component platinum catalyst and 10-100 parts of filler.
Furthermore, the single-component platinum catalyst consists of hydrogen-containing polysiloxane, a platinum catalyst coated by molecules and a time delay agent.
Furthermore, the hydrogen-containing polysiloxane is polysiloxane with at least 3 hydrogen atoms directly connected with Si, the hydrogen atoms are positioned on a chain end side chain, or both ends of the chain simultaneously contain the hydrogen atoms directly connected with Si, the content of the hydrogen atoms is 0.1-1.6%, and the hydrogen-containing polysiloxane is straight-chain, dendritic, cyclic or a mixture thereof.
Further, the hydrogen content of the hydrogenpolysiloxane in the single-component platinum catalyst in the modified silicon rubber polymer layer is 0.6-1.6%, and the viscosity of the hydrogenpolysiloxane is at least 50 centistokes; when the hydrogen-containing polysiloxane in the single-component platinum catalyst in the liquid silicone rubber polymer adhesive layer is used by matching more than two hydrogen-containing silicone oils, the dosage of one hydrogen-containing silicone oil is not less than 5%.
Further, the molecular-coated platinum catalyst is a chloroplatinic acid isopropanol solution, a chloroplatinic acid tetrahydrofuran solution, a chloroplatinic acid-divinyl tetramethyl disiloxane complex or a chloroplatinic acid-1, 3, 5, 7-tetravinyl-1, 3, 5, 7-tetramethyl-cyclotetrasiloxane complex, and the content of Pt atoms in the platinum catalyst is 100-500000 ppm.
Further, the time delay agent is methyl butynol, ethynyl cyclohexanol, maleic acid containing alkynyl or derivatives thereof, fumaric acid containing alkynyl or derivatives thereof, polyvinyl polysiloxane, pyridine, unsaturated amides, organic phosphine or phosphite ester.
Further, the filler comprises at least one of fumed silica and precipitated silica, silicone resin, silica micropowder, at least one of calcium carbonate, aluminosilicate, diatomite, alumina, aluminum hydroxide and magnesium hydroxide, titanium dioxide or a mixture thereof; the color paste is a pigment taking polysiloxane as a dispersion medium; the base material is woven fabric or non-woven fabric or superfine fiber; the thickness of the modified silicone rubber polymer layer is 0.1-0.6 mm.
In addition, the invention also discloses a preparation method of the silicone rubber polymer weather-resistant leather, which comprises the following steps:
s1, preparing a coating for forming a modified silicone rubber polymer layer according to the raw material composition of claim 2, and preparing a coating for forming a liquid silicone rubber polymer adhesive layer according to the raw material composition of claim 3;
s2, coating preparation, namely coating the paint forming the modified silicon rubber polymer layer in the S1 on the release paper with texture, wherein the coating thickness is 0.1-0.6mm, and coating the paint forming the liquid silicon rubber polymer adhesive in the S1 on the base material;
s3, vulcanizing, namely, attaching the two layers of coatings coated in the S2 to form a composite layered object, sequentially arranging release paper, a modified silicon rubber polymer coating layer, a liquid silicon rubber polymer adhesive coating layer and a substrate layer, and baking in a drying tunnel at 60-160 ℃ for 3-10 minutes to complete vulcanization;
and S4, post-treating, vulcanizing, removing the release paper, and performing other post-treatment procedures to obtain the silicone rubber polymer weather-resistant leather.
The leather has special properties (weather resistance, high air permeability, chemical reagent resistance, high bending resistance, high surface hardness, high and low temperature resistance, heat-resistant adhesion, hydrophobicity, corrosion resistance and radiation resistance), and the application range of the organic silicon leather in special environments is expanded. Meanwhile, the manufacturing method is simple, continuous production can be realized, the efficiency is high, and no harmful substance or pollutant exists in the whole production process and the using process.
Drawings
The detailed structure of the invention is described in detail below with reference to the accompanying drawings
FIG. 1 is a layered structure diagram of a silicone rubber polymer weather-resistant leather of the present invention;
fig. 2 is a production system of the silicone rubber polymer weather-resistant leather of the invention.
In the figure, 1-modified silicone rubber polymer layer, 2-liquid silicone rubber polymer adhesive layer, 3-base material layer; a1 is textured release paper, A2 is a coating head, A3 is a compound roller, B1 is an oven, and C1 is a winding device.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The invention discloses a silicon rubber polymer weather-resistant leather by combining an attached figure 1, wherein the organic leather sequentially comprises a modified silicon rubber polymer layer 1, a liquid silicon rubber polymer adhesive layer 2 and a base material layer 3, and alkyd modified silicon resin, polyester modified silicon resin, acrylic modified silicon resin, epoxy modified silicon resin, phenolic modified silicon resin and polyimide modified silicon resin are added into the modified silicon rubber polymer layer 1 and the liquid silicon rubber polymer adhesive layer 2. The innovation point of the scheme is that six kinds of modified silicon resin are combined at the same time, wherein the alkyd modified silicon resin can enable leather to have good weather resistance and bonding property, the polyester modified silicon resin can enable leather to have good bending resistance and wear resistance, the acrylic modified silicon resin can enable leather to have good water resistance and solvent resistance, the epoxy modified silicon resin can enable leather to have good heat-resistant bonding property and high-temperature resistance, the phenolic modified silicon resin can obviously improve the hydrophobicity and flexibility of the leather, the polyimide modified silicon resin can obviously improve the corrosion resistance, radiation resistance and fracture resistance of the leather, and the synergistic effect among various modified silicon resins is utilized to enable the final leather product to have good comprehensive performance, meanwhile, if the performance of a certain aspect of the leather needs to be enhanced or highlighted, the performance of a certain aspect can be enhanced by adjusting the actual proportion of various modified silicone resins.
Preferably, the modified silicone rubber polymer layer 1 is prepared from the following raw materials in parts by weight:
10-50 parts of vinyl polysiloxane, 1-20 parts of alkyd modified silicon resin, 1-20 parts of polyester modified silicon resin, 1-20 parts of acrylic modified silicon resin, 1-20 parts of epoxy modified silicon resin, 1-20 parts of phenolic modified silicon resin, 1-20 parts of polyimide modified silicon resin, 0.01-2 parts of single-component platinum catalyst, 10-100 parts of filler and 0-10 parts of color paste. The proportion of the modified silicone resin is adjusted, so that the final leather has reinforced or protruded properties corresponding to certain aspects.
Preferably, the liquid silicone rubber polymer adhesive layer 2 is made of the following raw materials in parts by weight:
10-50 parts of vinyl polysiloxane, 1-10 parts of alkyd modified silicon resin, 1-10 parts of polyester modified silicon resin, 1-10 parts of acrylic modified silicon resin, 1-10 parts of epoxy modified silicon resin, 1-10 parts of phenolic modified silicon resin, 1-10 parts of polyimide modified silicon resin, 0.01-2 parts of single-component platinum catalyst and 10-100 parts of filler. The liquid silicone rubber polymer adhesive layer 2 and the modified silicone rubber polymer layer 1 have the same components, but some components may have slight differences, and the components with the same or similar components can have the same or similar molecular chain structures, so that the modified silicone rubber polymer layer 1 and the liquid silicone rubber polymer adhesive layer 2 are easier to combine, the bonding force between the two layers is increased, and the obtained synthetic leather is not easy to delaminate.
Preferably, the single-component platinum catalyst consists of hydrogen-containing polysiloxane, a molecular-coated platinum catalyst and a time delay agent.
Preferably, the hydrogenpolysiloxane is polysiloxane with at least 3 hydrogen atoms directly connected with Si, the hydrogen atoms are positioned at chain end side chains or both chain ends simultaneously contain hydrogen atoms directly connected with Si, the content of the hydrogen atoms is 0.1-1.6%, and the hydrogenpolysiloxane is straight-chain, dendritic, cyclic or a mixture thereof.
Preferably, the hydrogen content of the hydrogenpolysiloxane in the single-component platinum catalyst in the modified silicone rubber polymer layer 1 is 0.6-1.6%, and the viscosity of the hydrogenpolysiloxane is at least 50 centistokes; when the hydrogen-containing polysiloxane in the single-component platinum catalyst in the liquid silicone rubber polymer adhesive layer 2 is used by matching more than two hydrogen-containing silicone oils, the dosage of one of the hydrogen-containing silicone oils is not less than 5%, preferably not less than 10%.
Preferably, the molecular-coated platinum catalyst is a chloroplatinic acid isopropanol solution, a chloroplatinic acid tetrahydrofuran solution, a chloroplatinic acid-divinyl tetramethyl disiloxane complex or a chloroplatinic acid-1, 3, 5, 7-tetravinyl-1, 3, 5, 7-tetramethyl-cyclotetrasiloxane complex, and the content of Pt atoms in the platinum catalyst is 100-500000 ppm.
Preferably, the retarder is methylbutynol, ethynylcyclohexanol, alkynyl-containing maleic acid or a derivative thereof, alkynyl-containing fumaric acid or a derivative thereof, polyvinyl polysiloxane, pyridine, an unsaturated amide, an organic phosphine, or a phosphite.
Preferably, the filler comprises at least one of fumed silica and precipitated silica, silicone resin, silica micropowder, at least one of calcium carbonate, aluminosilicate, diatomite, alumina, aluminum hydroxide and magnesium hydroxide, titanium dioxide or a mixture thereof; the color paste is a pigment taking polysiloxane as a dispersion medium; the base material is woven fabric or non-woven fabric or superfine fiber; the thickness of the modified silicone rubber polymer layer 1 is 0.1-0.6 mm.
Referring to fig. 2, a method for preparing the silicone rubber polymer weather-resistant leather includes the steps of:
s1, preparing a coating, wherein on one hand, the coating for forming the modified silicon rubber polymer layer 1 is prepared from the following raw materials in parts by weight: 20Kg of vinyl polysiloxane, 0.5Kg of each of 6 modified silicon resins, 3Kg of hydrophobic fumed silica as a filler, 0.5Kg of color paste, and 0.2Kg of single-component platinum catalyst with the Pt concentration of 3000ppm as a molecular-coated platinum group catalyst, and the preparation method comprises the steps of firstly mixing the 20Kg of vinyl polysiloxane, 0.5Kg of each of six modified silicon resins and 3Kg of hydrophobic fumed silica (the specific surface area is 200), then adding 0.2Kg of single-component platinum catalyst, and uniformly mixing the color paste with 0.5Kg to obtain the required coating. On the other hand, the coating for forming the liquid silicone rubber polymer adhesive layer 2 is prepared from the following raw materials in parts by weight: vinyl silicone adopts 20Kg of vinyl silicone oil with viscosity of 20000 centistokes end, 0.5Kg of each of six modified silicone rubber resins, 5Kg of hydrophobic fumed silica as filler, 0.5Kg of color paste, and 0.2Kg of single-component platinum catalyst with Pt concentration of 3000ppm as molecular-coated platinum catalyst, and the coating of the liquid silicone rubber polymer adhesive layer 2 can be obtained by uniformly mixing.
S2, coating preparation, namely coating the coating forming the modified silicone rubber polymer layer 1 in the S1 on the textured release paper A1 by using a coating head A2 of a coating device, wherein the coating thickness is 0.1-0.6mm, and coating the coating forming the liquid silicone rubber polymer adhesive in the S1 on a substrate.
And S3, vulcanizing, namely laminating the two layers of coatings coated in the S2 to form a composite layered object by using a composite roller A3, sequentially coating release paper, a modified silicone rubber polymer coating layer, a liquid silicone rubber polymer adhesive coating layer and a base material layer, and baking in a baking channel of an oven B1 at the temperature of 60-160 ℃ for 3-10 minutes to complete the vulcanization.
S4, post-processing, vulcanizing, removing the release paper, performing other post-processing procedures, and rolling by using a rolling device C1 to obtain the silicone rubber polymer weather-resistant leather with the total thickness of 0.6-1.5mm, wherein the test performance of the silicone rubber polymer weather-resistant leather is shown in Table 1.
TABLE 1
Figure BDA0001337737640000061
The leather has special properties (weather resistance, high air permeability, chemical reagent resistance, high bending resistance, high surface hardness, high and low temperature resistance, heat-resistant adhesion, hydrophobicity, corrosion resistance and radiation resistance), and the application range of the organic silicon leather in special environments is expanded. Meanwhile, the manufacturing method is simple, continuous production can be realized, the efficiency is high, and no harmful substance or pollutant exists in the whole production process and the using process.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (8)

1. A silicone rubber polymer weatherable leather characterized by: the modified silicone rubber adhesive sequentially comprises a modified silicone rubber polymer layer, a liquid silicone rubber polymer adhesive layer and a base material layer, wherein the modified silicone rubber polymer layer is prepared from the following raw materials in parts by weight:
10-50 parts of vinyl polysiloxane, 1-20 parts of alkyd modified silicon resin, 1-20 parts of polyester modified silicon resin, 1-20 parts of acrylic modified silicon resin, 1-20 parts of epoxy modified silicon resin, 1-20 parts of phenolic modified silicon resin, 1-20 parts of polyimide modified silicon resin, 0.01-2 parts of single-component platinum catalyst, 10-100 parts of filler and 0-10 parts of color paste;
the liquid silicone rubber polymer adhesive layer is prepared from the following raw materials in parts by weight:
10-50 parts of vinyl polysiloxane, 1-10 parts of alkyd modified silicon resin, 1-10 parts of polyester modified silicon resin, 1-10 parts of acrylic modified silicon resin, 1-10 parts of epoxy modified silicon resin, 1-10 parts of phenolic modified silicon resin, 1-10 parts of polyimide modified silicon resin, 0.01-2 parts of single-component platinum catalyst and 10-100 parts of filler;
wherein the single-component platinum catalyst consists of hydrogen-containing polysiloxane, a molecular-coated platinum catalyst and a time delay agent.
2. The silicone rubber polymer weatherable leather of claim 1, wherein: the hydrogenpolysiloxane is polysiloxane with at least 3 hydrogen atoms directly connected with Si, the hydrogen atoms are positioned on a chain end side chain, or both chain ends simultaneously contain the hydrogen atoms directly connected with Si, the hydrogen atom content is 0.1-1.6%, and the hydrogenpolysiloxane is straight-chain, dendritic, cyclic or a mixture thereof.
3. The silicone rubber polymer weatherable leather of claim 2, wherein: the hydrogen content of the hydrogenpolysiloxane in the single-component platinum catalyst in the modified silicon rubber polymer layer is 0.6-1.6%, and the viscosity of the hydrogenpolysiloxane is at least 50 centistokes; when the hydrogen-containing polysiloxane in the single-component platinum catalyst in the liquid silicone rubber polymer adhesive layer is used by matching more than two hydrogen-containing silicone oils, the dosage of one hydrogen-containing silicone oil is not less than 5%.
4. The silicone rubber polymer weatherable leather of claim 1, wherein: the molecular-coated platinum catalyst is a chloroplatinic acid isopropanol solution, a chloroplatinic acid tetrahydrofuran solution, a chloroplatinic acid-divinyl tetramethyl disiloxane complex or a chloroplatinic acid-1, 3, 5, 7-tetravinyl-1, 3, 5, 7-tetramethyl-cyclotetrasiloxane complex, and the content of Pt atoms in the platinum catalyst is 100-500000 ppm.
5. The silicone rubber polymer weatherable leather of claim 1, wherein: the time delay agent is methyl butynol, ethynyl cyclohexanol, maleic acid containing alkynyl or derivatives thereof, fumaric acid containing alkynyl or derivatives thereof, polyvinyl polysiloxane, pyridine, unsaturated amides or organic phosphine.
6. The silicone rubber polymer weatherable leather of claim 1, wherein: the filler comprises at least one of fumed silica and precipitated silica, silicone resin, silica micropowder, at least one of calcium carbonate, aluminosilicate, diatomite, alumina, aluminum hydroxide and magnesium hydroxide, and titanium dioxide.
7. The silicone rubber polymer weatherable leather of claim 1, wherein: the color paste is a pigment taking polysiloxane as a dispersion medium; the base material is woven fabric or non-woven fabric or superfine fiber; the thickness of the modified silicone rubber polymer layer is 0.1-0.6 mm.
8. The method for preparing the silicone rubber polymer weather-resistant leather as claimed in any one of claims 1 to 7, comprising the steps of:
s1, preparing a coating for forming a modified silicon rubber polymer layer and a coating for forming a liquid silicon rubber polymer adhesive layer according to the raw material composition of claim 1;
s2, coating preparation, namely coating the paint forming the modified silicon rubber polymer layer in the S1 on the release paper with texture, wherein the coating thickness is 0.1-0.6mm, and coating the paint forming the liquid silicon rubber polymer adhesive in the S1 on the base material;
s3, vulcanizing, namely, attaching the two layers of coatings coated in the S2 to form a composite layered object, sequentially arranging release paper, a modified silicon rubber polymer coating layer, a liquid silicon rubber polymer adhesive coating layer and a substrate layer, and baking in a drying tunnel at 60-160 ℃ for 3-10 minutes to complete vulcanization;
and S4, post-treating, vulcanizing, removing the release paper, and performing other post-treatment procedures to obtain the silicone rubber polymer weather-resistant leather.
CN201710521787.XA 2017-06-30 2017-06-30 Silicone rubber polymer weather-resistant leather and preparation method thereof Active CN107323020B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710521787.XA CN107323020B (en) 2017-06-30 2017-06-30 Silicone rubber polymer weather-resistant leather and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710521787.XA CN107323020B (en) 2017-06-30 2017-06-30 Silicone rubber polymer weather-resistant leather and preparation method thereof

Publications (2)

Publication Number Publication Date
CN107323020A CN107323020A (en) 2017-11-07
CN107323020B true CN107323020B (en) 2020-07-21

Family

ID=60199437

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710521787.XA Active CN107323020B (en) 2017-06-30 2017-06-30 Silicone rubber polymer weather-resistant leather and preparation method thereof

Country Status (1)

Country Link
CN (1) CN107323020B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108559398A (en) * 2018-01-10 2018-09-21 广东天跃新材料股份有限公司 A kind of environmental-friendly silicon rubber leather and its coating process
WO2020232568A1 (en) * 2019-05-17 2020-11-26 Dow Silicones Corporation Coating composition and its uses
CN113698769B (en) * 2021-07-26 2023-03-24 广东天跃新材料股份有限公司 Silicone rubber leather material for medical industry and preparation method thereof
CN116179060A (en) * 2023-02-07 2023-05-30 烟台赛达医疗科技有限公司 Hydrophilic lubricating coating and preparation method and application thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698978A (en) * 1969-04-22 1972-10-17 Exxon Research Engineering Co Registered embossed high pressure laminates
CN103821008A (en) * 2014-03-12 2014-05-28 李江群 Organosilicon synthetic leather adopting three-layer structure and preparation method thereof
CN105696361A (en) * 2016-03-15 2016-06-22 惠州赛力珑新材料有限公司 Super-soft organic silicon leather and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698978A (en) * 1969-04-22 1972-10-17 Exxon Research Engineering Co Registered embossed high pressure laminates
CN103821008A (en) * 2014-03-12 2014-05-28 李江群 Organosilicon synthetic leather adopting three-layer structure and preparation method thereof
CN105696361A (en) * 2016-03-15 2016-06-22 惠州赛力珑新材料有限公司 Super-soft organic silicon leather and preparation method thereof

Also Published As

Publication number Publication date
CN107323020A (en) 2017-11-07

Similar Documents

Publication Publication Date Title
CN107323020B (en) Silicone rubber polymer weather-resistant leather and preparation method thereof
CN107880305B (en) Polymer composite material with high gas and liquid barrier properties and preparation method thereof
CN101474896B (en) Ultra-hydrophobic film of compound structure
CN1702234A (en) Ventilating organosilicon synthetic leather and its making method
ATE549377T1 (en) LAMINATED SILICONE SUBSTRATE, METHOD FOR PRODUCING SAME, SILICONE RESIN COMPOSITION FOR PRODUCING THE LAMINATED SILICONE SUBSTRATE AND LED DEVICE
TW200708585A (en) Pressure sensitive adhesives and methods for their preparation
EP1741755A3 (en) Method of coating using curable silicone compositions having improved chemical resistance and migration resistance
CN105619968A (en) Environment-friendly weather-resistant and stain-resistant wallpaper and making method
CN110028910A (en) A kind of high temperature resistant masking tape and preparation method thereof
CN103265013A (en) Preparation methods of flexible substrate-based graphene film and flexible substrate-based graphene composite film
CN102876249A (en) Preparation method of peelable type organosilicon pressure-sensitive adhesive
CN107880773B (en) Water-based epoxy modified silicone resin coating and preparation method thereof
CN105542169A (en) Preparation method for alkoxy functionalized polysiloxane
CN102120903A (en) Water-resistant modified polyvinyl alcohol coating liquid and preparation method thereof, and coating formed by coating liquid
CN106633965A (en) Weather-resistant high-extension self-adhesion polymer waterproof coiled material for roof and preparation method of weather-resistant high-extension self-adhesion polymer waterproof coiled material
CN105367799A (en) Modified polysiloxane room temperature vulcanized silicone rubber
CN105238133A (en) Printing ink applied to coated glass and application method of printing ink
CN102504676A (en) Heat transfer release agent, preparation method thereof and use method thereof
US8333867B2 (en) Method for bonding fibrous silicone-coated supports
CN104497866A (en) Silicone sealant base coat liquid suitable for fiber cement board
CN101301790A (en) Manufacturing method of silicon gel slice
CN108192356B (en) Carrier type organic silicon adhesion promoter and preparation method thereof
CN103525232A (en) Preparation method of mildewproof waterborne coating
CN113667310B (en) Liquid silicone rubber and preparation method and application thereof
CN103865418A (en) Non-newton-ring chemical treating two-way stretching polyester pre-coating film and preparation method thereof

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
GR01 Patent grant
GR01 Patent grant