CN114536884A - Flame-retardant leather made of cow leather - Google Patents

Flame-retardant leather made of cow leather Download PDF

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Publication number
CN114536884A
CN114536884A CN202210078647.0A CN202210078647A CN114536884A CN 114536884 A CN114536884 A CN 114536884A CN 202210078647 A CN202210078647 A CN 202210078647A CN 114536884 A CN114536884 A CN 114536884A
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China
Prior art keywords
layer
flame
retardant
waterproof layer
leather
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Pending
Application number
CN202210078647.0A
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Chinese (zh)
Inventor
林洛云
金昌华
陆相成
唐鹏飞
付凯文
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ZHEJIANG JINXIN LEATHER CO Ltd
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ZHEJIANG JINXIN LEATHER CO Ltd
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Priority to CN202210078647.0A priority Critical patent/CN114536884A/en
Publication of CN114536884A publication Critical patent/CN114536884A/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
    • 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
    • B32B9/025—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 comprising leather
    • 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
    • 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
    • B32B25/042—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 of natural rubber or synthetic 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
    • 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
    • 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
    • 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
    • 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
    • B32B9/045—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 synthetic resin
    • 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
    • C09J107/00—Adhesives based on natural rubber
    • 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
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • 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
    • C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
    • 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
    • C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
    • C09J167/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
    • 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
    • C09J183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
    • 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
    • C09J191/00—Adhesives based on oils, fats or waxes; Adhesives based on derivatives thereof
    • C09J191/06—Waxes
    • 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
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/554—Wear resistance
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • 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
    • C08K2003/2265—Oxides; Hydroxides of metals of iron
    • C08K2003/2272—Ferric oxide (Fe2O3)
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The application discloses flame-retardant leather of cow hide, including the cow hide basement, its characterized in that, first waterproof layer, second waterproof layer, fire-retardant layer and wearing layer have set gradually on the cow hide basement, all realize mutual bonding through high temperature resistant viscose layer between first waterproof layer, second waterproof layer, fire-retardant layer and the wearing layer, the material of high temperature resistant viscose layer is high temperature resistant viscose. The thicknesses of the first waterproof layer, the second waterproof layer, the flame-retardant layer and the wear-resistant layer are equal, and the polyurethane resin has good wear resistance. The high-temperature resistant adhesive layer is made of high-temperature resistant adhesive, and the adhesive strength cannot be reduced after the high-temperature resistant adhesive layer is used for a long time under a high-temperature condition.

Description

Flame-retardant leather made of cow leather
Technical Field
The invention relates to the technical field of cow leather, in particular to cow leather flame-retardant leather.
Background
At present, middle-high grade car and high-speed railway VIP carriage seat all use high-grade genuine leather cladding, this kind of genuine leather interior trim leather is usually by the cow hide through fleshing, deliming, soften, tanning, retanning, dyeing, fatliquoring, it is dry, it is soft, it is decorated and made to decorate, general cow hide interior trim leather ubiquitous following problem, at first general cow hide interior trim leather integrative single-layer structure, not only the result of use is poor, lack the function of fire prevention, when the sun explodes the sun, often can change the performance of leather, perhaps when taking place the incident, the leather still can play combustion-supporting effect, thereby bring bigger harm, and the multilayer structure is at present the viscidity poor, the layering easily, from this need improve.
Disclosure of Invention
The present invention is directed to solving one of the technical problems of the prior art.
The application provides a flame-retardant leather of cow hide, including the cow hide basement, its characterized in that, first waterproof layer, second waterproof layer, fire-retardant layer and wearing layer have set gradually on the cow hide basement, all realize mutual bonding through high temperature resistant viscose layer between first waterproof layer, second waterproof layer, fire-retardant layer and the wearing layer, the material of high temperature resistant viscose layer is high temperature resistant viscose.
Preferably, the following components are used: the thickness of the first waterproof layer, the second waterproof layer, the flame-retardant layer and the wear-resistant layer is equal, and the thickness of the cow leather substrate is larger than that of the first waterproof layer, the second waterproof layer, the flame-retardant layer and the wear-resistant layer.
Preferably, the following components are used: and anti-skid lines in a wave-shaped stripe shape are arranged on the outer surface of the wear-resistant layer.
By adopting the flame-retardant leather, the first waterproof layer, the second waterproof layer, the flame-retardant layer and the wear-resistant layer are sequentially arranged on the cowhide substrate, and the first waterproof layer, the second waterproof layer, the flame-retardant layer and the wear-resistant layer can greatly increase the fireproof performance of the leather, avoid the leather from being damaged and improve the durability of the leather; through having designed the wearing layer, the wearing layer surface is provided with the anti-skidding line that is wave stripe form, and the practicality is strong, is worth using widely. The first waterproof layer and the second waterproof layer are made of rubber. Rubber is relatively common in the market and can have better water-proof performance. The material of the flame-retardant layer is magnesium hydroxide. Magnesium hydroxide is a conventional material and can absorb a large amount of latent heat, thereby being more flame resistant. The wear-resistant layer is made of polyurethane resin. The polyurethane resin has better wear resistance. The high-temperature resistant adhesive layer is made of high-temperature resistant adhesive, and the adhesive strength cannot be reduced after the high-temperature resistant adhesive layer is used for a long time under a high-temperature condition.
The invention also discloses a preparation method of the high-temperature resistant viscose glue suitable for the cowhide flame-retardant leather, which is characterized by comprising the following steps:
s1, selecting raw materials, namely uniformly mixing dimethyl dimethoxysilane, distilled water and ammonia borane, stirring for reaction, cooling, and evaporating to remove moisture to obtain modified organic silicon resin;
s2, heating the epoxy resin, adding silanol, modified organic silicon resin and xylene, uniformly stirring, and heating for reaction to obtain modified epoxy resin;
s3, uniformly mixing modified epoxy resin, natural rubber powder, chlorinated paraffin, dodecyl phosphate, glycerol, polylactic acid-glycolic acid copolymer, dilauryl thiodipropionate, ferric oxide micro powder and diphenylmethane bismaleimide to obtain a first component;
and S4, uniformly mixing the ethylenediamine and the dimethylformamide to obtain a second component, and mixing and uniformly stirring the first component and the second component to obtain the high-temperature resistant adhesive.
Preferably: in step S1, the amount of dimethyldimethoxysilane is 50 to 100g, the amount of distilled water is 10 to 20g, and the amount of ammonia borane is 10 to 20 g.
Preferably: in step S1, the reaction time is stirred for 1-3 hours, and the temperature is set at 50-60 ℃ after cooling.
Preferably: in step S2, the epoxy resin 500-.
Preferably: in step S3, 15-20g of modified epoxy resin, 15-20g of natural rubber powder, 15-20g of chlorinated paraffin, 10-20g of dodecyl phosphate, 50-60g of glycerol, 15-30g of polylactic acid-glycolic acid copolymer, 10-20g of didodecyl thiodipropionate, 15-20g of ferric oxide micropowder and 10-20g of diphenylmethane bismaleimide.
Preferably: in step S4, ethylenediamine 200-230g and dimethylformamide 200-230 g.
The advantageous effects of the present invention will be explained in detail in the embodiments, thereby making the advantageous effects more apparent.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Example 1:
as shown in fig. 1, a cow leather flame-retardant leather comprises a cow leather substrate 1, in the embodiment of the invention, a first waterproof layer 2, a second waterproof layer 3, a flame-retardant layer 4 and a wear-resistant layer 5 are sequentially arranged on the cow leather substrate 1, the first waterproof layer 2, the second waterproof layer 3, the flame-retardant layer 4 and the wear-resistant layer 5 are mutually bonded through a high-temperature-resistant adhesive layer 9, and the high-temperature-resistant adhesive layer 9 is made of a high-temperature-resistant adhesive.
In the specific embodiment of the invention, the thicknesses of the first waterproof layer 2, the second waterproof layer 3, the flame-retardant layer 4 and the wear-resistant layer 5 are equal, and the thickness of the cow leather substrate 1 is greater than the thicknesses of the first waterproof layer 2, the second waterproof layer 3, the flame-retardant layer 4 and the wear-resistant layer 5.
In the specific embodiment of the invention, the outer surface of the wear-resistant layer 5 is provided with anti-skid lines in a wave-shaped stripe shape.
By adopting the flame-retardant leather, the first waterproof layer 2, the second waterproof layer 3, the flame-retardant layer 4 and the wear-resistant layer 5 are sequentially arranged on the cowhide substrate 1, and the fireproof performance of the leather can be greatly improved through the first waterproof layer 2, the second waterproof layer 3, the flame-retardant layer 4 and the wear-resistant layer 5, so that the leather is prevented from being damaged, and the durability of the leather is improved; through having designed wearing layer 5, 5 surfaces of wearing layer are provided with the anti-skidding line that is wave stripe form, and the practicality is strong, is worth using widely. The first waterproof layer 2 and the second waterproof layer 3 are made of rubber. Rubber is relatively common in the market and can have better water-proof performance. The material of the flame retardant layer 4 is magnesium hydroxide. Magnesium hydroxide is a conventional material and can absorb a large amount of latent heat, thereby being more flame resistant. The material of the wear-resistant layer 5 is polyurethane resin. The polyurethane resin has better wear resistance. The high-temperature resistant adhesive layer 9 is made of high-temperature resistant adhesive, and the adhesive strength cannot be reduced after long-term use under the high-temperature condition.
Example 2:
the invention also discloses a preparation method of the high-temperature resistant viscose glue suitable for the cowhide flame-retardant leather, which comprises the following steps in the specific embodiment of the invention:
s1, selecting raw materials, namely uniformly mixing dimethyl dimethoxysilane, distilled water and ammonia borane, stirring for reaction, cooling, and evaporating to remove moisture to obtain modified organic silicon resin;
s2, heating the epoxy resin, adding silanol, modified organic silicon resin and xylene, uniformly stirring, and heating for reaction to obtain modified epoxy resin;
s3, uniformly mixing modified epoxy resin, natural rubber powder, chlorinated paraffin, dodecyl phosphate, glycerol, polylactic acid-glycolic acid copolymer, dilauryl thiodipropionate, ferric oxide micro powder and diphenylmethane bismaleimide to obtain a first component;
and S4, uniformly mixing the ethylenediamine and the dimethylformamide to obtain a second component, and mixing and uniformly stirring the first component and the second component to obtain the high-temperature resistant adhesive.
In the specific embodiment of the present invention, in step S1, 50 to 100g of dimethyldimethoxysilane, 10 to 20g of distilled water and 10 to 20g of ammonia borane are used.
In the present embodiment, in step S1, the reaction time is stirred for 1-3 hours, and the temperature is set at 50-60 ℃ after cooling.
In the specific embodiment of the invention, in step S2, 500-600g of epoxy resin, 30-50g of silanol, 500-600g of modified organic silicon resin and 600g of xylene are reacted for 1-3h at the temperature of 120-160 ℃.
In the specific embodiment of the invention, in step S3, 15-20g of modified epoxy resin, 15-20g of natural rubber powder, 15-20g of chlorinated paraffin, 10-20g of dodecyl phosphate, 50-60g of glycerol, 15-30g of polylactic acid-glycolic acid copolymer, 10-20g of dilauryl thiodipropionate, 15-20g of ferric oxide micropowder and 10-20g of diphenylmethane bismaleimide.
In the present embodiment, in step S4, the amount of ethylenediamine 200-230g and the amount of dimethylformamide 200-230g are increased.
According to the invention, the epoxy resin is modified by the organic silicon resin, so that the bonding strength is not reduced after the epoxy resin is used for a long time under a high-temperature condition. The firmness of the bonding between the cow leather substrate 1 and the first waterproof layer 2, the second waterproof layer 3, the flame-retardant layer 4 and the wear-resistant layer 5 is guaranteed, and the high-temperature resistance is greatly stable.
Example 3:
the preparation method of the high-temperature resistant viscose applicable to the cowhide flame-retardant leather comprises the following steps of:
s1, selecting raw materials, namely uniformly mixing dimethyl dimethoxysilane, distilled water and ammonia borane, stirring for reaction, cooling, and evaporating to remove moisture to obtain modified organic silicon resin; 50g of dimethyldimethoxysilane, 15g of distilled water and 20g of ammonia borane. The reaction time was 1 hour with stirring and the temperature was set at 50 ℃ after cooling.
S2, heating the epoxy resin, adding silanol, modified organic silicon resin and xylene, uniformly stirring, and heating for reaction to obtain modified epoxy resin; 500g of epoxy resin, 30g of silanol, 500g of modified organic silicon resin and 500g of xylene, wherein the temperature is increased to 120 ℃, and the reaction is carried out for 1 hour.
S3, uniformly mixing modified epoxy resin, natural rubber powder, chlorinated paraffin, dodecyl phosphate, glycerol, polylactic acid-glycolic acid copolymer, dilauryl thiodipropionate, ferric oxide micro powder and diphenylmethane bismaleimide to obtain a first component; 15g of modified epoxy resin, 15g of natural rubber powder, 15g of chlorinated paraffin, 10g of dodecyl phosphate, 50g of glycerol, 15g of polylactic acid-glycolic acid copolymer, 10g of dilauryl thiodipropionate, 15g of ferric oxide micropowder and 10g of diphenylmethane bismaleimide.
And S4, uniformly mixing the ethylenediamine and the dimethylformamide to obtain a second component, and mixing and uniformly stirring the first component and the second component to obtain the high-temperature resistant adhesive. 200g of ethylenediamine and 200g of dimethylformamide.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a flame-retardant leather of cow hide, includes cow hide base (1), its characterized in that, first waterproof layer (2), second waterproof layer (3), fire-retardant layer (4) and wearing layer (5) have set gradually on cow hide base (1), all realize mutual bonding through high temperature resistant viscose layer (9) between first waterproof layer (2), second waterproof layer (3), fire-retardant layer (4) and wearing layer (5), the material of high temperature resistant viscose layer (9) is high temperature resistant viscose.
2. The buffy coat flame-retardant leather according to claim 1, wherein the thicknesses of the first waterproof layer (2), the second waterproof layer (3), the flame-retardant layer (4) and the wear-resistant layer (5) are equal, and the thickness of the cow leather substrate (1) is larger than the thicknesses of the first waterproof layer (2), the second waterproof layer (3), the flame-retardant layer (4) and the wear-resistant layer (5).
3. The buffy coat flame-retardant leather according to claim 1 or 2, characterized in that the outer surface of the wear-resistant layer (5) is provided with anti-slip lines in the shape of wave-shaped stripes.
4. A method for preparing a high temperature resistant viscose glue suitable for the cowhide flame retardant leather of claim 3, which comprises the following steps:
s1, selecting raw materials, namely uniformly mixing dimethyl dimethoxysilane, distilled water and ammonia borane, stirring for reaction, cooling, and evaporating to remove moisture to obtain modified organic silicon resin;
s2, heating the epoxy resin, adding silanol, modified organic silicon resin and xylene, uniformly stirring, and heating for reaction to obtain modified epoxy resin;
s3, uniformly mixing modified epoxy resin, natural rubber powder, chlorinated paraffin, dodecyl phosphate, glycerol, polylactic acid-glycolic acid copolymer, dilauryl thiodipropionate, ferric oxide micro powder and diphenylmethane bismaleimide to obtain a first component;
and S4, uniformly mixing the ethylenediamine and the dimethylformamide to obtain a second component, and mixing and uniformly stirring the first component and the second component to obtain the high-temperature resistant adhesive.
5. The flame-retardant leather of claim 4, wherein in step S1, the amount of dimethyl dimethoxy silane is 50-100g, the amount of distilled water is 10-20g, and the amount of ammonia borane is 10-20 g.
6. The buffalo flame-retardant leather according to the claim 4, characterized in that in the step S1, the stirring reaction time is 1-3 hours, and the temperature after cooling is set at 50-60 ℃.
7. The cowhide flame-retardant leather as claimed in claim 4, wherein in step S2, the epoxy resin 500-.
8. The buffy fire-retardant leather according to claim 4, wherein in step S3, 15-20g of modified epoxy resin, 15-20g of natural rubber powder, 15-20g of chlorinated paraffin, 10-20g of dodecyl phosphate, 50-60g of glycerol, 15-30g of polylactic acid-glycolic acid copolymer, 10-20g of didodecyl thiodipropionate, 15-20g of ferric oxide micropowder, and 10-20g of diphenylmethane bismaleimide.
9. The flame-retardant leather as claimed in claim 4, wherein in step S4, the mixture comprises 230g of ethylenediamine 200-.
CN202210078647.0A 2022-01-23 2022-01-23 Flame-retardant leather made of cow leather Pending CN114536884A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104531028A (en) * 2015-01-24 2015-04-22 李�杰 Preparation method of modified epoxy resin adhesive for adhesion of silicon rubber and metal
CN205416605U (en) * 2015-10-27 2016-08-03 海宁富邦汽车内饰有限公司 Cow hide car seatpad leather
CN206306562U (en) * 2016-08-25 2017-07-07 宁夏金海皮业有限责任公司 A kind of fire-resistant waterproof upper leather
CN208745480U (en) * 2018-03-22 2019-04-16 广州益合康科技材料有限公司 A kind of flame-retardant leather
CN109851759A (en) * 2018-11-06 2019-06-07 中国神华能源股份有限公司 Modifying epoxy resin by organosilicon, preparation method and modifying epoxy resin by organosilicon adhesive
CN210026560U (en) * 2018-05-02 2020-02-07 江苏科美新材料有限公司 Waterproof easy-to-clean microfiber leather
CN214873324U (en) * 2021-04-26 2021-11-26 陆丰万鑫皮革厂有限公司 Fireproof leather

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104531028A (en) * 2015-01-24 2015-04-22 李�杰 Preparation method of modified epoxy resin adhesive for adhesion of silicon rubber and metal
CN205416605U (en) * 2015-10-27 2016-08-03 海宁富邦汽车内饰有限公司 Cow hide car seatpad leather
CN206306562U (en) * 2016-08-25 2017-07-07 宁夏金海皮业有限责任公司 A kind of fire-resistant waterproof upper leather
CN208745480U (en) * 2018-03-22 2019-04-16 广州益合康科技材料有限公司 A kind of flame-retardant leather
CN210026560U (en) * 2018-05-02 2020-02-07 江苏科美新材料有限公司 Waterproof easy-to-clean microfiber leather
CN109851759A (en) * 2018-11-06 2019-06-07 中国神华能源股份有限公司 Modifying epoxy resin by organosilicon, preparation method and modifying epoxy resin by organosilicon adhesive
CN214873324U (en) * 2021-04-26 2021-11-26 陆丰万鑫皮革厂有限公司 Fireproof leather

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