CN107323020A - A kind of silastic polymer weatherability leather and preparation method thereof - Google Patents
A kind of silastic polymer weatherability leather and preparation method thereof Download PDFInfo
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- CN107323020A CN107323020A CN201710521787.XA CN201710521787A CN107323020A CN 107323020 A CN107323020 A CN 107323020A CN 201710521787 A CN201710521787 A CN 201710521787A CN 107323020 A CN107323020 A CN 107323020A
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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
- 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
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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
- 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
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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
- 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
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- 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
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- 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
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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
- 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
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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
- 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
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
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- 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
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- 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
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- 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
Abstract
The invention provides a kind of modified silicon rubber polymer weatherability leather and preparation method thereof, this kind is made up of modified silicon rubber polymeric layer, liquid silastic polymer bonding oxidant layer and substrate layer, and modified silicon rubber polymeric layer and liquid silastic the polymer bonding oxidant layer is added with alkyd modified silicones, polyester modification silicones, acrylic acid modified silicones, epoxide modified silicones, phenol aldehyde modified silicones, polyimide modified silicones.There are leather of the present invention some properties (to have weather-proof, highly-breathable, chemical-resistant reagent, high bending, high surface hardness, anti-high and low-temp, heat-resistant fine adhesive function, hydrophobicity and corrosion resistance and radiation hardness), extend use scope of the organosilicon leather in particular surroundings.Its preparation method is simple simultaneously and can continuously produce, efficiency high, whole production process and use process unharmful substance contamination-free.
Description
Technical field
The present invention relates to the artificial organic field of leather of one kind, a kind of silastic polymer weatherability leather is referred in particular to.
Background technology
At present, domestic and international synthetic leather industry is main based on polyurethane (PU) and polyvinyl chloride (PVC), and it is manufacturing and made
It can all contain substantial amounts of dimethylformamide during, butanone, the harmful substance such as toluene, and during the processing of its scrap concrete again
Hydrogen chloride, bioxin, hydrogen cyanide etc. can be produced to environment and biological harmful catabolite.PU and PVC synthetic leather make daily
There is not ageing-resistant, not heatproof used time, and facile hydrolysis easily stains, poor air permeability, intolerant to tortuosity, intolerant to heated aqueous, production process
The shortcomings of excessive waste of resource.Existing organosilicon leather urgently overcomes disadvantages mentioned above, obtains production efficiency high and persistently resistance to
The extraordinary new organic leather of time property.
The content of the invention
In order to solve the above-mentioned technical problem, the invention discloses a kind of silastic polymer weatherability leather, this kind organic
Leather is made up of modified silicon rubber polymeric layer, liquid silastic polymer bonding oxidant layer and substrate layer successively, the modified silicon
Rubber polymer layer and liquid silastic polymer bonding oxidant layer, which are added, alkyd modified silicones, polyester modification silicones, third
Olefin(e) acid modified silicone resin, epoxide modified silicones, phenol aldehyde modified silicones, polyimide modified silicones.
Further, the modified silicon rubber polymeric layer is made up of the raw material of following parts by weight:
10-50 parts of vinyl polysiloxane, alkyd modified silicones 1-20 parts, 1-20 parts of polyester modification silicones, propylene
Sour modified silicone resin 1-20 parts, epoxide modified silicones 1-20 parts, phenol aldehyde modified silicones 1-20 parts, polyimide modified silicon tree
1-20 parts of fat, 0.01-2 parts of one pack system platinum catalyst, 10-100 parts of filler, 0-10 parts of mill base.
Further, the liquid silastic polymer bonding oxidant layer is made up of the raw material of following parts by weight:
10-50 parts of vinyl polysiloxane, alkyd modified silicones 1-10 parts, 1-10 parts of polyester modification silicones, propylene
Sour modified silicone resin 1-10 parts, epoxide modified silicones 1-10 parts, phenol aldehyde modified silicones 1-10 parts, polyimide modified silicon tree
1-10 parts of fat, 0.01-2 parts of one pack system platinum catalyst, 10-100 parts of filler.
Further, the one pack system platinum catalyst wraps up platinum group catalyst, delay agent by hydrogen containing siloxane, molecule
Composition.
Further, the hydrogen containing siloxane is the polysiloxanes that at least 3 hydrogen atoms are joined directly together with Si, described
Hydrogen atom is located at end of the chain side chain, or chain two ends also simultaneously containing the hydrogen atom being joined directly together with Si, and the hydrogen atom content is
0.1-1.6%, the hydrogen containing siloxane is straight-chain, dendritic, ring-type or its mixture.
Further, the hydrogen containing siloxane in the modified silicon rubber polymeric layer inside one-component platinum catalyst contains
Hydrogen amount is 0.6-1.6%, and the viscosity of hydrogen containing siloxane is at least 50 centistokes;The liquid silastic polymer bonding oxidant layer
Hydrogen containing siloxane inside middle one pack system platinum catalyst is arranged in pairs or groups in use, one kind therein for two or more containing hydrogen silicone oils
Containing hydrogen silicone oil consumption is not less than 5%.
Further, molecule parcel platinum group catalyst be isopropyl alcohol solution of chloroplatinic acid, chloroplatinic acid tetrahydrofuran solution,
Chloroplatinic acid-divinyl tetramethyl disiloxane complex or chloroplatinic acid -1,3,5,7- tetravinyls -1,3,5,7- tetramethyls -
The content of Pt atoms is 100~500000ppm in cyclotetrasiloxane complex, the platinum catalyst.
Further, the delay agent is methyl butynol, ethynylcyclohexanol, containing the maleic acid of alkynyl or its derivative
Thing, rich maleic acid containing alkynyl or derivatives thereof, many vinyl polysiloxanes, pyridine, unsaturated acyl amine, organic phosphine or phosphorous
Acid esters.
Further, the filler includes at least one of fume colloidal silica, precipitated silica, and silicones, silicon is micro-
Powder, at least one of calcium carbonate, aluminosilicate, silicon bath soil, aluminum oxide, aluminium hydroxide, magnesium hydroxide, titanium dioxide or its
Mixture;The mill base is the pigment using polysiloxanes as decentralized medium;The base material is woven fabric or non-woven fabrics or ultra-fine fibre
Dimension;The thickness of the modified silicon rubber polymeric layer is 0.1-0.6mm.
In addition, the invention also discloses a kind of preparation method of silastic polymer weatherability leather, its step includes:
S1, coating preparation, the painting for forming modified silicon rubber polymeric layer is made according to the raw material composition described in claim 2
Material, the coating for forming liquid silastic polymer bonding oxidant layer is made according to the raw material composition described in claim 3;
Prepared by S2, coating, the coating that modified silicon rubber polymeric layer is formed in S1 is coated in textured release liners,
Coating thickness is 0.1-0.6mm, and the coating that liquid silastic polymer bonding agent is formed in S1 is coated on base material;
S3, vulcanization, two coatings coated in S2 are fitted to form composite laminates, and be followed successively by release liners, modified silicon
Rubber polymer dope layer, liquid silastic polymer bonding agent dope layer and substrate layer, toast 3- in 60-160 DEG C of drying tunnel
Complete vulcanization within 10 minutes;
S4, post processing, after vulcanization, remove release liners, then through other postprocessing working procedures, you can obtain a kind of silicon rubber polymerization
Thing weatherability leather.
There are leather of the present invention some properties (to have weather-proof, highly-breathable, chemical-resistant reagent, high bending is high
Case hardness, anti-high and low-temp, heat-resistant fine adhesive function, hydrophobicity and corrosion resistance and radiation hardness), organosilicon leather is extended in spy
The use scope of different environment.Its preparation method is simple simultaneously and can continuously produce, efficiency high, whole production process and uses process
Unharmful substance contamination-free.
Brief description of the drawings
The concrete structure of the present invention is described in detail below in conjunction with the accompanying drawings
Fig. 1 is a kind of layer structure figure of silastic polymer weatherability leather of the invention;
Fig. 2 is a kind of production system of silastic polymer weatherability leather of the invention.
In figure, 1- modified silicon rubbers polymeric layer, 2- liquid silastic polymer bondings oxidant layer, 3- substrate layers;A1 is to have
The release liners of texture, A2 are that coating head, A3 are that composite roll, B1 are that baking box, C1 are winding device.
Embodiment
To describe the technology contents of the present invention in detail, feature, the objects and the effects being constructed, below in conjunction with embodiment
And coordinate accompanying drawing to be explained in detail.
With reference to accompanying drawing 1, the invention discloses a kind of silastic polymer weatherability leather, this kind of organic leather is successively by changing
Property silastic polymer layer 1, liquid silastic polymer bonding oxidant layer 2 and substrate layer 3 constitute, the modified silicon rubber polymer
Layer 1 and liquid silastic polymer bonding oxidant layer 2 are added with alkyd modified silicones, polyester modification silicones, acrylic acid modified
Silicones, epoxide modified silicones, phenol aldehyde modified silicones, polyimide modified silicones.The innovative point of this programme is that
In combination with six kinds of modified silicone resins, wherein alkyd modified silicones may be such that leather has good weatherability and cementability,
Polyester modification silicones may be such that leather has good bending resistance and wearability, and acrylic acid modified silicones can cause skin
Leather has good water resistance and solvent resistance, and epoxide modified silicones can cause leather to have good heat-resistant fine adhesive function
And high temperature resistant property, phenol aldehyde modified silicones can significantly improve the hydrophobicity and pliability of leather, polyimide modified silicon tree
Fat can then significantly improve the corrosion resistance, radiation resistance and fracture resistance of leather, utilize the association between various modified silicone resins
With effect so that final leather and fur products possesses good combination property, meanwhile, if desired strengthen or protrude leather in a certain respect
Performance, performance in a certain respect can also be strengthened according to the actual ratio of various modified silicone resins is adjusted.
It is preferred that, the modified silicon rubber polymeric layer 1 is made up of the raw material of following parts by weight:
10-50 parts of vinyl polysiloxane, alkyd modified silicones 1-20 parts, 1-20 parts of polyester modification silicones, propylene
Sour modified silicone resin 1-20 parts, epoxide modified silicones 1-20 parts, phenol aldehyde modified silicones 1-20 parts, polyimide modified silicon tree
1-20 parts of fat, 0.01-2 parts of one pack system platinum catalyst, 10-100 parts of filler, 0-10 parts of mill base.Adjust the ratio of modified silicone resin
Example, may be such that performance of the final leather correspondence in terms of certain has reinforcing or protruded.
It is preferred that, the liquid silastic polymer bonding oxidant layer 2 is made up of the raw material of following parts by weight:
10-50 parts of vinyl polysiloxane, alkyd modified silicones 1-10 parts, 1-10 parts of polyester modification silicones, propylene
Sour modified silicone resin 1-10 parts, epoxide modified silicones 1-10 parts, phenol aldehyde modified silicones 1-10 parts, polyimide modified silicon tree
1-10 parts of fat, 0.01-2 parts of one pack system platinum catalyst, 10-100 parts of filler.Liquid silastic polymer bonding oxidant layer 2 is with changing
Property silastic polymer layer 1 component it is roughly the same, simply some components there may be little bit different, with same or analogous
Component can then have same or analogous molecular chain structure so that modified silicon rubber polymeric layer 1 glues with liquid silastic polymer
Connect oxidant layer 2 and be easier combination, increase the cohesive force of two interlayers, resulting synthetic leather is difficult delamination.
It is preferred that, the one pack system platinum catalyst wraps up platinum group catalyst, delay agent group by hydrogen containing siloxane, molecule
Into.
It is preferred that, the hydrogen containing siloxane is the polysiloxanes that at least 3 hydrogen atoms are joined directly together with Si, the hydrogen
Atom is located at end of the chain side chain, or chain two ends also simultaneously containing the hydrogen atom being joined directly together with Si, and the hydrogen atom content is 0.1-
1.6%, the hydrogen containing siloxane is straight-chain, dendritic, ring-type or its mixture.
It is preferred that, the hydrogen containing siloxane in the modified silicon rubber polymeric layer 1 inside one-component platinum catalyst contains
Hydrogen amount is 0.6-1.6%, and the viscosity of hydrogen containing siloxane is at least 50 centistokes;The liquid silastic polymer bonding oxidant layer
Hydrogen containing siloxane in 2 inside one pack system platinum catalyst is arranged in pairs or groups in use, therein one for two or more containing hydrogen silicone oils
Plant containing hydrogen silicone oil consumption and be not less than 5%, preferably not less than 10%.
It is preferred that, the molecule parcel platinum group catalyst is isopropyl alcohol solution of chloroplatinic acid, chloroplatinic acid tetrahydrofuran solution, chlorine
Platinic acid-divinyl tetramethyl disiloxane complex or chloroplatinic acid -1,3,5,7- tetravinyls -1,3,5,7- tetramethyls-ring
The content of Pt atoms is 100~500000ppm in tetrasiloxane complex, the platinum catalyst.
It is preferred that, the maleic acid of the delay agent for methyl butynol, ethynylcyclohexanol, containing alkynyl or derivatives thereof,
Rich maleic acid containing alkynyl or derivatives thereof, many vinyl polysiloxanes, pyridine, unsaturated acyl amine, organic phosphine or phosphorous acid
Ester.
It is preferred that, the filler includes at least one of fume colloidal silica, precipitated silica, silicones, silicon powder,
At least one of calcium carbonate, aluminosilicate, silicon bath soil, aluminum oxide, aluminium hydroxide, magnesium hydroxide, titanium dioxide or it is mixed
Compound;The mill base is the pigment using polysiloxanes as decentralized medium;The base material is woven fabric or non-woven fabrics or superfine fibre;
The thickness of the modified silicon rubber polymeric layer 1 is 0.1-0.6mm.
With reference to Fig. 2, a kind of preparation method of silastic polymer weatherability leather, its step includes:
S1, coating preparation, on the one hand, prepare the coating for forming modified silicon rubber polymeric layer 1, the coating is by below by weight
The raw material for measuring number proportioning is made:Vinyl polysiloxane 20Kg, 6 kinds of each 0.5Kg of modified silicone resin, fillers use hydrophobicity gas
Phase method white carbon 3Kg, mill base 0.5Kg, molecule parcel platinum group catalyst use Pt concentration to be catalyzed for 3000ppm one-component platinum
Agent 0.2Kg, it is first that vinyl polysiloxane 20Kg and six kinds of modified silicone resin each 0.5Kg and 3Kg is hydrophobic fumed during preparation
White carbon (specific surface area 200) is mixed, and adds one-component platinum catalyst 0.2Kg, and mill base 0.5Kg, which is mixed evenly, can obtain
Required coating.On the other hand, the coating for forming liquid silastic polymer bonding oxidant layer 2 is prepared, is matched somebody with somebody by weight by following
The raw material of ratio is made:The poly- silica of vinyl uses viscosity for 20000 centistoke vinyl-terminated silicone fluid 20Kg, six kinds of modified silicon rubber trees
Each 0.5Kg of fat, filler are dense using Pt using hydrophobic fumed white carbon 5Kg, mill base 0.5Kg, molecule parcel platinum group catalyst
The one-component platinum catalyst 0.2Kg for 3000ppm is spent, the painting that can obtain liquid silastic polymer bonding oxidant layer 2 is mixed
Material.
Prepared by S2, coating, using the coating head A2 of coating apparatus, the painting of modified silicon rubber polymeric layer 1 will be formed in S1
Material is coated on textured release liners A1, and coating thickness is 0.1-0.6mm, liquid silastic polymer bonding will be formed in S1
The coating of agent is coated on base material.
S3, vulcanization, using composite roll A3, two coatings coated in S2 are fitted to form composite laminates, and be followed successively by
Release liners, modified silicon rubber polymer coating layer, liquid silastic polymer bonding agent dope layer and substrate layer, at 60-160 DEG C
Baking box B1 drying tunnel in baking 3-10 minute complete vulcanize.
S4, post processing, after vulcanization, remove release liners, then received through other postprocessing working procedures, and using winding device C1
Volume, you can obtain the silastic polymer weatherability leather that a kind of gross thickness is 0.6-1.5mm, its test performance is as shown in table 1.
Table 1
There are leather of the present invention some properties (to have weather-proof, highly-breathable, chemical-resistant reagent, high bending is high
Case hardness, anti-high and low-temp, heat-resistant fine adhesive function, hydrophobicity and corrosion resistance and radiation hardness), organosilicon leather is extended in spy
The use scope of different environment.Its preparation method is simple simultaneously and can continuously produce, efficiency high, whole production process and uses process
Unharmful substance contamination-free.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of silastic polymer weatherability leather, it is characterised in that:Successively by modified silicon rubber polymeric layer, liquid silicon rubber
Xanthan polymer bond layer and substrate layer composition, the modified silicon rubber polymeric layer are made up of the raw material of following parts by weight:
10-50 parts of vinyl polysiloxane, alkyd modified silicones 1-20 parts, 1-20 parts of polyester modification silicones, acrylic acid changes
1-20 parts of silicones of property, epoxide modified silicones 1-20 parts, phenol aldehyde modified silicones 1-20 parts, polyimide modified silicones 1-
20 parts, 0.01-2 parts of one pack system platinum catalyst, 10-100 parts of filler, 0-10 parts of mill base.
2. silastic polymer weatherability leather as claimed in claim 1, it is characterised in that:The liquid silastic polymer
Bond layer is made up of the raw material of following parts by weight:
10-50 parts of vinyl polysiloxane, alkyd modified silicones 1-10 parts, 1-10 parts of polyester modification silicones, acrylic acid changes
1-10 parts of silicones of property, epoxide modified silicones 1-10 parts, phenol aldehyde modified silicones 1-10 parts, polyimide modified silicones 1-
10 parts, 0.01-2 parts of one pack system platinum catalyst, 10-100 parts of filler.
3. silastic polymer weatherability leather as claimed in claim 2, it is characterised in that:The one pack system platinum catalyst
It is made up of hydrogen containing siloxane, molecule parcel platinum group catalyst, delay agent.
4. silastic polymer weatherability leather as claimed in claim 3, it is characterised in that:The hydrogen containing siloxane is extremely
The polysiloxanes that rare 3 hydrogen atoms are joined directly together with Si, the hydrogen atom is located at end of the chain side chain, or chain two ends are also contained simultaneously
The hydrogen atom being joined directly together with Si, the hydrogen atom content be 0.1-1.6%, the hydrogen containing siloxane be straight-chain, it is dendritic,
Ring-type or its mixture.
5. silastic polymer weatherability leather as claimed in claim 4, it is characterised in that:The modified silicon rubber polymer
Hydrogen containing siloxane hydrogen content in layer inside one-component platinum catalyst is 0.6-1.6%, and the viscosity of hydrogen containing siloxane
It is at least 50 centistokes;Hydrogen containing siloxane in the liquid silastic polymer bonding oxidant layer inside one pack system platinum catalyst
Arranged in pairs or groups for two or more containing hydrogen silicone oils in use, a kind of containing hydrogen silicone oil consumption therein is not less than 5%.
6. silastic polymer weatherability leather as claimed in claim 3, it is characterised in that:The molecule parcel platinum group catalysis
Agent be isopropyl alcohol solution of chloroplatinic acid, chloroplatinic acid tetrahydrofuran solution, chloroplatinic acid-divinyl tetramethyl disiloxane complex or
Pt is former in chloroplatinic acid -1,3,5,7- tetravinyls -1,3,5,7- tetramethyls-cyclotetrasiloxane complex, the platinum catalyst
The content of son is 100~500000ppm.
7. silastic polymer weatherability leather as claimed in claim 3, it is characterised in that:The delay agent is methyl butyne
Alcohol, ethynylcyclohexanol, maleic acid containing alkynyl or derivatives thereof, rich maleic acid containing alkynyl or derivatives thereof, many vinyl
Polysiloxanes, pyridine, unsaturated acyl amine, organic phosphine or phosphite ester.
8. silastic polymer weatherability leather as claimed in claim 2, it is characterised in that:It is white that the filler includes vapor phase method
At least one of carbon black, precipitated silica, silicones, silicon powder, calcium carbonate, aluminosilicate, silicon bath soil, aluminum oxide, hydrogen-oxygen
Change at least one of aluminium, magnesium hydroxide, titanium dioxide or its mixture.
9. silastic polymer weatherability leather as claimed in claim 2, it is characterised in that:The mill base is with polysiloxanes
For the pigment of decentralized medium;The base material is woven fabric or non-woven fabrics or superfine fibre;The modified silicon rubber polymeric layer
Thickness is 0.1-0.6mm.
10. the preparation method of the silastic polymer weatherability leather as described in claim any one of 2-9, its step includes:
S1, coating preparation, the coating for forming modified silicon rubber polymeric layer is made according to the raw material composition described in claim 1,
The coating for forming liquid silastic polymer bonding oxidant layer is made according to the raw material composition described in claim 2;
Prepared by S2, coating, the coating that modified silicon rubber polymeric layer is formed in S1 is coated in textured release liners, coated
Thickness is 0.1-0.6mm, and the coating that liquid silastic polymer bonding agent is formed in S1 is coated on base material;
S3, vulcanization, two coatings coated in S2 are fitted to form composite laminates, and be followed successively by release liners, modified silicon rubber
Polymer coating layer, liquid silastic polymer bonding agent dope layer and substrate layer, toast 3-10 points in 60-160 DEG C of drying tunnel
Clock completes vulcanization;
S4, post processing, after vulcanization, remove release liners, then through other postprocessing working procedures, you can obtain a kind of silastic polymer resistance to
Time property leather.
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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 |
WO2020233268A1 (en) * | 2019-05-17 | 2020-11-26 | Dow Silicones Corporation | Coating composition and its uses |
CN113698769A (en) * | 2021-07-26 | 2021-11-26 | 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 |
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Cited By (5)
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 |
WO2020233268A1 (en) * | 2019-05-17 | 2020-11-26 | Dow Silicones Corporation | Coating composition and its uses |
WO2020232568A1 (en) * | 2019-05-17 | 2020-11-26 | Dow Silicones Corporation | Coating composition and its uses |
CN113698769A (en) * | 2021-07-26 | 2021-11-26 | 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 |
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