CN110253978A - A kind of polymer thermal insulative silica gel synthetic leather - Google Patents

A kind of polymer thermal insulative silica gel synthetic leather Download PDF

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Publication number
CN110253978A
CN110253978A CN201910683724.3A CN201910683724A CN110253978A CN 110253978 A CN110253978 A CN 110253978A CN 201910683724 A CN201910683724 A CN 201910683724A CN 110253978 A CN110253978 A CN 110253978A
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China
Prior art keywords
layer
silica gel
synthetic leather
heat resistant
bonded
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CN201910683724.3A
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CN110253978B (en
Inventor
庄加松
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Fengyang Jiasong New Material Technology Co Ltd
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Fengyang Jiasong New Material Technology Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • B32B2255/102—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer synthetic resin or rubber layer being a foamed layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0207—Materials belonging to B32B25/00
    • 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
    • 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
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable

Landscapes

  • Laminated Bodies (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Abstract

The invention discloses a kind of polymer thermal insulative silica gel synthetic leather, including base cloth layer, the heat resistant layer being bonded with base cloth layer is evenly distributed with dead-end pore inside the heat resistant layer, and the porosity of heat resistant layer is 70%~90%；The resistance wet layer being bonded with heat resistant layer, the resistance wet layer includes the first structure layer and the second structure sheaf being mutually bonded, and fine and close macromolecule network face is formed on the bonding plane of the first structure layer and the second structure sheaf；The silica gel leathering layer being bonded with resistance wet layer.The present invention in silica gel synthetic leather by increasing heat resistant layer and resistance wet layer, wherein being covered in heat resistant layer has dead-end pore, fine and close macromolecule network face is formed in resistance wet layer, its dampness factor reaches 23000 level above, so that the overall thermal conductivity of silica gel synthetic leather reduces most 0.031W/ (mk), thermal resistance effect is pursued merely relative to conventional vacuum synthetic leather, and ignores the transmitting of moisture-inhibiting process bring temperature, and heat insulating effect of the invention is more prominent.

Description

A kind of polymer thermal insulative silica gel synthetic leather
Technical field
The present invention relates to silica gel technical field of synthetic leather, and in particular to a kind of polymer thermal insulative silica gel synthetic leather.
Background technique
The synthetic leather of the market mainstream is to be coated on substrate with resin slurries such as PU, PVC and the product of formation.In recent years, Occur silica gel synthetic leather in the market, is using textile as substrate, by made of dipping silica gel slurry and top finish Composite material.Compared to PU synthetic leather popular in the market, the excellent spies such as the synthetic leather made of silica gel has environmental protection, do not hydrolyze Property, but also have the shortcomings that, such as heat insulation effect is poor, cause the application of silica gel synthetic leather more to be limited to.
Summary of the invention
The purpose of the present invention is to provide a kind of polymer thermal insulative silica gel synthetic leather, and which solve traditional silicon gluing finished leather guarantors The poor defect of temp effect.
The present invention through the following technical solutions to achieve the above objectives:
A kind of polymer thermal insulative silica gel synthetic leather, including
Base cloth layer,
The heat resistant layer being bonded with base cloth layer is evenly distributed with dead-end pore, and the porosity of heat resistant layer inside the heat resistant layer It is 70%~90%；
The resistance wet layer being bonded with heat resistant layer, the resistance wet layer includes the first structure layer and the second structure sheaf being mutually bonded, And fine and close macromolecule network face is formed on the bonding plane of the first structure layer and the second structure sheaf；
The silica gel leathering layer being bonded with resistance wet layer.
Further improvement lies in that the base cloth layer selects high density needle punched non-woven fabrics, woven dacron or superfine fiber chemical leather One of base fabric.
Further improvement lies in that the material of the heat resistant layer is blown rubber.
Further improvement lies in that the first structure layer is rubber material, second structure sheaf is pvc material, The activator that surface can be made to generate activatable free radical is pre-coated on the interface of first structure layer and the second structure sheaf, the One structure sheaf and the second structure sheaf are by the organic-silicon-modified adhesive bonding of self-cross linking type, and it is modified to work as the cross-linking organosilicon After adhesive is contacted with the free radical of surface both, reaction forms fine and close macromolecule network face.
Form the principle in fine and close macromolecule network face are as follows: silicon and first structure in the organic-silicon-modified adhesive of self-cross linking type Layer and the activatable free radical of the second structure layer surface react to form dense face, realize effective surface bonding, meanwhile, selfing The organic-silicon-modified adhesive of connection type itself also oxygen and moisture in free radical, air under the action of crosslink reaction, formed Fine and close macromolecule network face.
Further improvement lies in that the dosage of the activator is 2.0-3.5g/m2, the activator is by peroxidating diisopropyl Benzene and Dibutyltin oxide mixing composition, and the mass ratio between cumyl peroxide and Dibutyltin oxide is 3:1.
Further improvement lies in that the organic-silicon-modified adhesive of self-cross linking type is organosilicon-modified acrylic latex.
Further improvement lies in that the silica gel leathering layer prepare raw material include 20~30 parts of silicon rubber base rubbers, 6~10 Part rosin resin, 2~5 parts of nano-nylon powder, 3~5 parts of paraffin oils, 2~4 parts of tea oil, 3~5 parts of tackifier and 2~6 parts of couplings Agent.
The beneficial effects of the present invention are: by the increase heat resistant layer in silica gel synthetic leather and wet layer is hindered, wherein heat resistant layer Inside being covered with has dead-end pore, hinders in wet layer and is formed with fine and close macromolecule network face, and the dampness factor reaches 23000 level above, So that the overall thermal conductivity of silica gel synthetic leather reduces most 0.031W/ (mk), relative to conventional vacuum synthetic leather list Pure pursuit thermal resistance effect, and ignore the transmitting of moisture-inhibiting process bring temperature, heat insulating effect of the invention is more prominent.
In addition, since thermal resistance layer porosity is larger, so that the whole resilience of synthetic leather is good；Add in silica gel leathering layer Enter paraffin oil, tea oil and rosin resin, pliability that is not only environmentally friendly but also helping to be promoted silica gel synthetic leather promotes feel, addition Nano-nylon powder helps to promote its wearability.
Specific embodiment
The application is described in further detail below with reference to embodiment, it is necessary to it is indicated herein to be, it is real in detail below The mode of applying is served only for that the application is further detailed, and should not be understood as the limitation to the application protection scope, the field Technical staff some nonessential modifications and adaptations can be made to the application according to above-mentioned application content.
Embodiment 1
A kind of polymer thermal insulative silica gel synthetic leather, including
(1) base cloth layer, base cloth layer select high density needle punched non-woven fabrics；
(2) heat resistant layer being bonded with base cloth layer, the material of heat resistant layer are blown rubber, are evenly distributed with closing inside heat resistant layer Hole, and the porosity of heat resistant layer is 70%；
(3) the resistance wet layer being bonded with heat resistant layer, resistance wet layer includes the first structure layer and the second structure sheaf being mutually bonded, Middle first structure layer is rubber material, and the second structure sheaf is pvc material, in pair of first structure layer and the second structure sheaf The activator that surface can be made to generate activatable free radical is pre-coated in junction, the dosage of activator is 2.0g/m2, activator by Cumyl peroxide and Dibutyltin oxide mixing composition, and the quality between cumyl peroxide and Dibutyltin oxide Than first structure layer and the second structure sheaf being bonded by organosilicon-modified acrylic latex, when organic-silicon-modified propylene for 3:1 After yogurt glue is contacted with the free radical of surface both, reaction forms fine and close macromolecule network face；
(4) raw material for preparing of the silica gel leathering layer being bonded with resistance wet layer, silica gel leathering layer includes 20 parts of silicon rubber bases Glue, 6 parts of rosin resins, 2 parts of nano-nylon powder, 3 parts of paraffin oils, 2 parts of tea oil, 3 parts of tackifier and 2 parts of coupling agents.
Embodiment 2
A kind of polymer thermal insulative silica gel synthetic leather, including
(1) base cloth layer, base cloth layer select woven dacron；
(2) heat resistant layer being bonded with base cloth layer, the material of heat resistant layer are blown rubber, are evenly distributed with closing inside heat resistant layer Hole, and the porosity of heat resistant layer is 80%；
(3) the resistance wet layer being bonded with heat resistant layer, resistance wet layer includes the first structure layer and the second structure sheaf being mutually bonded, Middle first structure layer is rubber material, and the second structure sheaf is pvc material, in pair of first structure layer and the second structure sheaf The activator that surface can be made to generate activatable free radical is pre-coated in junction, the dosage of activator is 2.8g/m2, activator by Cumyl peroxide and Dibutyltin oxide mixing composition, and the quality between cumyl peroxide and Dibutyltin oxide Than first structure layer and the second structure sheaf being bonded by organosilicon-modified acrylic latex, when organic-silicon-modified propylene for 3:1 After yogurt glue is contacted with the free radical of surface both, reaction forms fine and close macromolecule network face；
(4) raw material for preparing of the silica gel leathering layer being bonded with resistance wet layer, silica gel leathering layer includes 25 parts of silicon rubber bases Glue, 8 parts of rosin resins, 3 parts of nano-nylon powder, 4 parts of paraffin oils, 3 parts of tea oil, 4 parts of tackifier and 4 parts of coupling agents.
Embodiment 3
A kind of polymer thermal insulative silica gel synthetic leather, including
(1) base cloth layer, base cloth layer select superfine fiber synthetic leather base cloth；
(2) heat resistant layer being bonded with base cloth layer, the material of heat resistant layer are blown rubber, are evenly distributed with closing inside heat resistant layer Hole, and the porosity of heat resistant layer is 90%；
(3) the resistance wet layer being bonded with heat resistant layer, resistance wet layer includes the first structure layer and the second structure sheaf being mutually bonded, Middle first structure layer is rubber material, and the second structure sheaf is pvc material, in pair of first structure layer and the second structure sheaf The activator that surface can be made to generate activatable free radical is pre-coated in junction, the dosage of activator is 3.5g/m2, activator by Cumyl peroxide and Dibutyltin oxide mixing composition, and the quality between cumyl peroxide and Dibutyltin oxide Than first structure layer and the second structure sheaf being bonded by organosilicon-modified acrylic latex, when organic-silicon-modified propylene for 3:1 After yogurt glue is contacted with the free radical of surface both, reaction forms fine and close macromolecule network face；
(4) raw material for preparing of the silica gel leathering layer being bonded with resistance wet layer, silica gel leathering layer includes 30 parts of silicon rubber bases Glue, 10 parts of rosin resins, 5 parts of nano-nylon powder, 5 parts of paraffin oils, 4 parts of tea oil, 5 parts of tackifier and 6 parts of coupling agents.
Comparative example 1
A kind of polymer thermal insulative silica gel synthetic leather, structure is substantially the same manner as Example 2, and unique difference is heat resistant layer Inside is not furnished with dead-end pore.
Comparative example 2
A kind of polymer thermal insulative silica gel synthetic leather, structure is substantially the same manner as Example 2, and unique difference is to hinder wet layer only It is made of the common bonding of rubber material and pvc material, does not activate to form fine and close macromolecule network face.
Comparative example 3
A kind of silica gel synthetic leather, for the ordinary silicon gluing finished leather bought on the market.
The silica gel synthetic leather of the various embodiments described above and comparative example is tested for the property, including its resilience, pliability With moisture barrier property and thermal coefficient.It should be noted that wherein moisture barrier property is the regulation referring to GB/T17794, pass through detection The steam partial pressure of synthetic leather two sides be 1Pa when unit area, the unit time penetrate steam by weight calculate its dampness because Son embodies.Wherein, wearability is to be contacted using circular grinding wheel with synthetic leather, and load-carrying 600g, revolving speed 100rpm carry out abrasion survey It tries, is always ensured that synthetic leather surface temperature at 50 DEG C hereinafter, until synthetic leather skin breakage, record are turn-taked in wear process Number.
As can be seen from the above table, the present invention by the increase heat resistant layer in silica gel synthetic leather and hinders wet layer, wherein heat resistant layer Inside being covered with has dead-end pore, hinders in wet layer and is formed with fine and close macromolecule network face, and the dampness factor reaches 23000 level above, So that the overall thermal conductivity of silica gel synthetic leather reduces most 0.031W/ (mk), relative to conventional vacuum synthetic leather list Pure pursuit thermal resistance effect, and ignore the transmitting of moisture-inhibiting process bring temperature, heat insulating effect of the invention is more prominent.Separately Outside, since thermal resistance layer porosity is larger, so that the whole resilience of synthetic leather is good；In silica gel leathering layer be added paraffin oil, Tea oil and rosin resin, pliability that is not only environmentally friendly but also helping to be promoted silica gel synthetic leather, promote feel, the nano-nylon powder of addition Help to promote its wearability.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.

Claims (7)

1. a kind of polymer thermal insulative silica gel synthetic leather, it is characterised in that: including
Base cloth layer,
The heat resistant layer being bonded with base cloth layer is evenly distributed with dead-end pore inside the heat resistant layer, and the porosity of heat resistant layer is 70%~90%；
The resistance wet layer being bonded with heat resistant layer, the resistance wet layer includes the first structure layer and the second structure sheaf being mutually bonded, and Fine and close macromolecule network face is formed on the bonding plane of the first structure layer and the second structure sheaf；
The silica gel leathering layer being bonded with resistance wet layer.
2. a kind of polymer thermal insulative silica gel synthetic leather according to claim 1, it is characterised in that: the base cloth layer is selected high One of density needle punched non-woven fabrics, woven dacron or superfine fiber synthetic leather base cloth.
3. a kind of polymer thermal insulative silica gel synthetic leather according to claim 1, it is characterised in that: the material of the heat resistant layer For blown rubber.
4. a kind of polymer thermal insulative silica gel synthetic leather according to claim 1, it is characterised in that: the first structure layer is Rubber material, second structure sheaf is pvc material, pre- on the interface of first structure layer and the second structure sheaf It is first coated with the activator that surface can be made to generate activatable free radical, first structure layer and the second structure sheaf pass through self-cross linking type organosilicon Modified adhesive bonding, and after the cross-linking organosilicon modified adhesive and the free radical of surface both contact, react shape At fine and close macromolecule network face.
5. a kind of polymer thermal insulative silica gel synthetic leather according to claim 4, it is characterised in that: the dosage of the activator For 2.0-3.5g/m2, the activator is made of cumyl peroxide and Dibutyltin oxide mixing, and peroxidating diisopropyl Mass ratio between benzene and Dibutyltin oxide is 3:1.
6. a kind of polymer thermal insulative silica gel synthetic leather according to claim 4, it is characterised in that: the self-cross linking type is organic Si modification adhesive is organosilicon-modified acrylic latex.
7. a kind of polymer thermal insulative silica gel synthetic leather according to claim 1, it is characterised in that: the silica gel leathering layer Prepare raw material include 20~30 parts of silicon rubber base rubbers, 6~10 parts of rosin resins, 2~5 parts of nano-nylon powder, 3~5 parts of paraffin Oil, 2~4 parts of tea oil, 3~5 parts of tackifier and 2~6 parts of coupling agents.
CN201910683724.3A 2019-07-26 2019-07-26 Polymer heat preservation silica gel synthetic leather Active CN110253978B (en)

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CN110253978B CN110253978B (en) 2021-07-23

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203787664U (en) * 2014-01-23 2014-08-20 广州番禺电缆集团有限公司 Waterproof and moistureproof structure of cable grounding part
CN205636304U (en) * 2015-12-09 2016-10-12 福建华普化学有限公司 Fire -retardant synthetic leather of environmental protection
CN108894006A (en) * 2018-07-13 2018-11-27 广东天跃新材料股份有限公司 Using foamed silica gel as the silicon rubber synthetic leather and its manufacturing technology of base
CN109393917A (en) * 2018-11-06 2019-03-01 广东雅丽斯佳纺织科技有限公司 A kind of mute noise reduction carpet and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203787664U (en) * 2014-01-23 2014-08-20 广州番禺电缆集团有限公司 Waterproof and moistureproof structure of cable grounding part
CN205636304U (en) * 2015-12-09 2016-10-12 福建华普化学有限公司 Fire -retardant synthetic leather of environmental protection
CN108894006A (en) * 2018-07-13 2018-11-27 广东天跃新材料股份有限公司 Using foamed silica gel as the silicon rubber synthetic leather and its manufacturing technology of base
CN109393917A (en) * 2018-11-06 2019-03-01 广东雅丽斯佳纺织科技有限公司 A kind of mute noise reduction carpet and preparation method thereof

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