CN108001024A - A kind of thermoplastic elastomers artificial leather and preparation method thereof - Google Patents
A kind of thermoplastic elastomers artificial leather and preparation method thereof Download PDFInfo
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- CN108001024A CN108001024A CN201711259492.6A CN201711259492A CN108001024A CN 108001024 A CN108001024 A CN 108001024A CN 201711259492 A CN201711259492 A CN 201711259492A CN 108001024 A CN108001024 A CN 108001024A
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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
- 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
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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
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
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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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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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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- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to technical field of composite materials, more particularly to a kind of thermoplastic elastomers artificial leather and preparation method thereof.The thermoplastic elastomers artificial leather and under successively include resin bed, tack coat, base cloth layer, wherein：Resin bed by mass fraction is 85 92 parts of polyurethane materials, 10 25 parts of thermoplastic elastomers, 0 2.5 parts of unsaturated grafted monomers, 0 0.8 parts of thickeners, 0 0.6 parts of defoamers are made up of fusion-grafting or copolymerization, and thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are any one in maleic anhydride, acrylic acid, acrylate, bismaleimide.Compared with existing product, without extra addition organic solvent, while the present invention provides a kind of preparation method of thermoplastic elastomers artificial leather, and obtained product can reach the effect above, realize the continuous production of product.
Description
Technical field
The present invention relates to technical field of composite materials, more particularly to a kind of thermoplastic elastomers artificial leather and its preparation side
Method.
Background technology
In today of economy rapid development, substitute of the artificial leather as natural animal leather, has popularized huge numbers of families,
The conventional resins material prepared as artificial leather still dominates market, due to its decompose at high temperature produce a large amount of irritations and
Effumability gas, seriously endanger people health, pollution environment, additionally, there may be intensity is low, resilience is poor, abscess not
The shortcomings of uniform.With the raising to fireproof environmental requirement in the world, exploitation high-performance, high-low temperature resistant artificial leather material are into becoming
Gesture.
SEBS has excellent ageing-resistant performance, not only with plasticity, but also has high resiliency, and can be processed without vulcanization makes
With again leftover pieces can use, and be widely used in the high-grade elastomer of production, modifying plastics, adhesive, lubricant tackifier, electric wire electricity
Filler material and protective cover material of cable etc..SEBS has good weatherability, heat resistance, compression resistant morphotropism and excellent mechanical property
Energy.
The material such as maleic anhydride, acrylic acid or ester and derivative, bismaleimide contains double bond and a polar group,
It is frequently used for being grafted with polyolefine material or copolyreaction, obtains graft product or copolymer.Such material is because pass through
Chemical reaction, has obtained the group of polarity, so adding affinity, it is easier to and other materials for containing polar group glue
Close.But maleic anhydride, acrylic acid or ester and derivative, bismaleimide etc. are copolymerized or the polyolefin of grafting, is all in the past
As compatilizer, the blending and modifying for thermoplastic macromolecule material.
SEBS and the preferred interworking of the material such as maleic anhydride, acrylic acid or ester and derivative, bismaleimide are prepared and hindered
Combustion, covering material of the high-low temperature resistant thermoplastic elastomers artificial leather as furniture material, have a extensive future.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of thermoplastic elastomers artificial leather, this is artificial
The characteristics of leather can reach high intensity, lightweight, height caking property, compared with existing product, organic solvent is added without extra,
The present invention provides a kind of preparation method of thermoplastic elastomers artificial leather at the same time, and obtained product can reach the effect above, real
The continuous production of existing product.
A kind of thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：It is described
Resin bed is 85-92 parts of polyurethane materials, 10-25 parts of thermoplastic elastomers, 0-2.5 parts of unsaturated grafting lists by mass fraction
Body, 0-0.8 part thickener, 0-0.6 parts of defoamers are made up of fusion-grafting or copolymerization.
Preferably, the thermoplastic elastomers are SEBS elastomers；It is described unsaturation grafted monomers for maleic anhydride,
Any one in acrylic acid, acrylate, bismaleimide；The polyurethane material is aqueous polyurethane, gathers to benzene two
One or more in formic acid second diester, polybutylene terephthalate；The thickener is polyacrylamide, polyurethane thickens
One or more in agent, alumina silicate；The defoamer is polyether-modified organosiloxane defoamer, silicone antifoam
One or more in agent, higher alcohols defoamer.
Preferably, a kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener are weighed, defoamer, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, stir 3-5h；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2-3h；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, is made resin bed；
S6：Fitting：Base cloth layer made from resin bed made from S5, tack coat, S2 is arranged in order, high-pressure extrusion into
Type, and be sent into dryer and dry and cool down；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Preferably, in the step S1, double screw extruder fusion-grafting or copolyreaction temperature are 120-170 DEG C, stream
Prolong or biaxial tension temperature is 180-240 DEG C, cooling temperature is≤25 DEG C.
Preferably, speed of agitator is 3000-4500r/min in the step S2, and speed of agitator is 1500- in step S3
Speed of agitator is 3000-4500r/min in 2500r/min, step S4.
Preferably, in the step S5, drying temperature is 115-135 DEG C, drying time 30-60s.
Preferably, in the step S6, drying temperature is 180-220 DEG C, drying time 40-100s.
The present invention has the advantages that compared with prior art：
The present invention utilizes the copolymerization such as maleic anhydride, acrylic acid, acrylate, bismaleimide or the thermoplastics type's bullet being grafted
Property body sheet material, improve the grafting performances of original thermoplastic elastomers, improve viscous between resin bed and tack coat, base cloth layer
Performance is tied, compared with using other binding materials, present invention saves material, simplifies technique, improves working environment.Together
When, the present invention is using the tape casting or the technique of biaxial tension method, and obtained artificial leather thickness is controllable, and scope can be set according to parameter
It is fixed.
Embodiment
With reference to embodiment, the present invention is further described.
Embodiment 1：
Formula：
Thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：Resin bed by
Mass fraction is 85 parts of polyurethane materials, 10 parts of thermoplastic elastomers, 2.0 parts of unsaturated grafted monomers, 0.8 part of thickener, 0.6
Part defoamer is made up of fusion-grafting or copolymerization.
Wherein, thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are maleic anhydride；Polyurethane material is water
Property polyurethane；Thickener is polyacrylamide；Defoamer is polyether-modified organosiloxane defoamer.
Preparation method：
A kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films, wherein, double screw extruder fusion-grafting or copolyreaction temperature are
135-145 DEG C, curtain coating or biaxial tension temperature are 195-205 DEG C, and cooling temperature is≤25 DEG C；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener, defoamer are weighed, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, 3h is stirred, speed of agitator is 3000r/min in the step；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2h, in the step
Speed of agitator is 1500r/min；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, drying temperature are 135 DEG C, drying time 30s；
S6：Fitting：Resin bed made from S5, tack coat, base cloth layer arranges in order made from S2, high-pressure extrusion shaping,
And be sent into dryer and dry and cool down, drying temperature is 180 DEG C, drying time 40s；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Embodiment 2：
Formula：
Thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：Resin bed by
Mass fraction is 90 parts of polyurethane materials, 18 parts of thermoplastic elastomers, 1.5 parts of unsaturated grafted monomers, 0.6 part of thickener,
0.0.3 part defoamer is made up of fusion-grafting or copolymerization.
Wherein, thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are the mixing of acrylic acid and acrylate
Thing；Polyurethane material is polyethylene terephthalate；Thickener is polyurethane thickener；Defoamer is silicone antifoam
Agent.
Preparation method：
A kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films, wherein, double screw extruder fusion-grafting or copolyreaction temperature are
155-165 DEG C, curtain coating or biaxial tension temperature are 205-215 DEG C, and cooling temperature is≤20 DEG C；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener, defoamer are weighed, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, 3h is stirred, speed of agitator is 3600r/min in the step；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2h, in the step
Speed of agitator is 1800r/min；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, drying temperature are 115 DEG C, drying time 45s；
S6：Fitting：Resin bed made from S5, tack coat, base cloth layer arranges in order made from S2, high-pressure extrusion shaping,
And be sent into dryer and dry and cool down, drying temperature is 200 DEG C, drying time 55s；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Embodiment 3：
Formula：
Thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：Resin bed by
Mass fraction is 92 parts of polyurethane materials, 25 parts of thermoplastic elastomers, 1.8 parts of unsaturated grafted monomers, 0.5 part of thickener, 0.2
Part defoamer is made up of fusion-grafting or copolymerization.
Wherein, thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are bismaleimide；Polyurethane material
For aqueous polyurethane and the mixture of polyethylene terephthalate；Thickener is polyacrylamide and the mixture of alumina silicate；
Defoamer is organosiloxane defoamer.
Preparation method：
A kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films, wherein, double screw extruder fusion-grafting or copolyreaction temperature are
140-150 DEG C, curtain coating or biaxial tension temperature are 190-200 DEG C, and cooling temperature is≤15 DEG C；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener, defoamer are weighed, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, 3h is stirred, speed of agitator is 4200r/min in the step；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2h, in the step
Speed of agitator is 2200r/min；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, drying temperature are 125 DEG C, drying time 60s；
S6：Fitting：Resin bed made from S5, tack coat, base cloth layer arranges in order made from S2, high-pressure extrusion shaping,
And be sent into dryer and dry and cool down, drying temperature is 2050 DEG C, drying time 65s；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Embodiment 4：
Formula：
Thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：Resin bed by
Mass fraction is 88 parts of polyurethane materials, 22 parts of thermoplastic elastomers, 1.8 parts of unsaturated grafted monomers, 0.2 part of thickener, 0.4
Part defoamer is made up of fusion-grafting or copolymerization.
Wherein, thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are maleic anhydride, acrylic acid and acrylic acid
The mixture of ester；Polyurethane material is polyethylene terephthalate and the mixture of polybutylene terephthalate；Thickener
For polyacrylamide and the mixture of polyurethane thickener；Defoamer is polysiloxane defoaming agent.
Preparation method：
A kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films, wherein, double screw extruder fusion-grafting or copolyreaction temperature are
155-165 DEG C, curtain coating or biaxial tension temperature are 215-225 DEG C, and cooling temperature is≤25 DEG C；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener, defoamer are weighed, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, 3h is stirred, speed of agitator is 3200r/min in the step；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2h, in the step
Speed of agitator is 2400r/min；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, drying temperature are 130 DEG C, drying time 55s；
S6：Fitting：Resin bed made from S5, tack coat, base cloth layer arranges in order made from S2, high-pressure extrusion shaping,
And be sent into dryer and dry and cool down, drying temperature is 210 DEG C, drying time 80s；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Embodiment 5：
Formula：
Thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：Resin bed by
Mass fraction is 92 parts of polyurethane materials, 24 parts of thermoplastic elastomers, 1.6 parts of unsaturated grafted monomers, 0.3 part of thickener, 0.5
Part defoamer is made up of fusion-grafting or copolymerization.
Wherein, thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are maleic anhydride, acrylic acid and acrylic acid
The mixture of ester；Polyurethane material is aqueous polyurethane；Thickener is polyacrylamide；Defoamer is higher alcohols defoamer.
Preparation method：
A kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films, wherein, double screw extruder fusion-grafting or copolyreaction temperature are
125-135 DEG C, curtain coating or biaxial tension temperature are 225-235 DEG C, and cooling temperature is≤20 DEG C；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener, defoamer are weighed, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, 3h is stirred, speed of agitator is 4100r/min in the step；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2h, in the step
Speed of agitator is 2400r/min；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, drying temperature are 125 DEG C, drying time 60s；
S6：Fitting：Resin bed made from S5, tack coat, base cloth layer arranges in order made from S2, high-pressure extrusion shaping,
And be sent into dryer and dry and cool down, drying temperature is 195 DEG C, drying time 85s；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Embodiment 6：
Formula：
Thermoplastic elastomers artificial leather, includes resin bed, tack coat, base cloth layer successively from top to bottom, wherein：Resin bed by
Mass fraction is 88 parts of polyurethane materials, 18 parts of thermoplastic elastomers, 2.2 parts of unsaturated grafted monomers, 0.8 part of thickener, 0.5
Part defoamer is made up of fusion-grafting or copolymerization.
Wherein, thermoplastic elastomers are SEBS elastomers；Unsaturated grafted monomers are acrylic acid, acrylate and span come
Imido mixture；Polyurethane material is aqueous polyurethane, polyethylene terephthalate and polybutylene terephthalate
Mixture；Thickener is polyurethane thickener；Defoamer is polyether-modified organosiloxane defoamer.
Preparation method：
A kind of preparation method of thermoplastic elastomers artificial leather, including step in detail below：
S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, pass through double spiral shells
Bar extruder carries out fusion-grafting or copolymerization is granulated, and obtains thermoplastic elastomers modified particle, modified particle is through curtain coating or two-way drawing
Stretch, cool down be made needed for thermoplastic elastomers modified films, wherein, double screw extruder fusion-grafting or copolyreaction temperature are
155-165 DEG C, curtain coating or biaxial tension temperature are 205-215 DEG C, and cooling temperature is≤20 DEG C；
S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；
S3：Polyurethane material, thickener, defoamer are weighed, 30% in thickener deal is mixed with polyurethane material,
30min is stirred, 30% in thickener deal is then added again, continues to stir 30min, be eventually adding residue 40% and thicken
Agent, and the 50% of defoaming agent prescription total amount is added, 3h is stirred, speed of agitator is 4100r/min in the step；
S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2h, in the step
Speed of agitator is 2200r/min；
S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, are sent into drying machine
Middle drying forming, drying temperature are 130 DEG C, drying time 55s；
S6：Fitting：Resin bed made from S5, tack coat, base cloth layer arranges in order made from S2, high-pressure extrusion shaping,
And be sent into dryer and dry and cool down, drying temperature is 205 DEG C, drying time 50s；
S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and winding obtains required thermoplastic elastomers
Artificial leather.
Comparative example 1：
Using the proportioning of embodiment 1, wherein, do not add thermoplastic elastomers in the formula materials of resin bed.
Embodiment 1-6 is compared with 1 data of comparative example, as a result referring to table 1：
Table 1：0
The present invention utilizes the copolymerization such as maleic anhydride, acrylic acid, acrylate, bismaleimide or the thermoplastics type's bullet being grafted
Property body sheet material, improve the grafting performances of original thermoplastic elastomers, improve viscous between resin bed and tack coat, base cloth layer
Performance is tied, compared with using other binding materials, present invention saves material, simplifies technique, improves working environment.Together
When, the present invention is using the tape casting or the technique of biaxial tension method, and obtained artificial leather thickness is controllable, and scope can be set according to parameter
It is fixed.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, added according to technical solution and inventive concept
With equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
- A kind of 1. thermoplastic elastomers artificial leather, it is characterised in that include resin bed, tack coat, base cloth layer successively from top to bottom, Wherein：The resin bed is 85-92 parts of polyurethane materials, 10-25 parts of thermoplastic elastomers, 0-2.5 parts of insatiable hungers by mass fraction It is made up with grafted monomers, 0-0.8 parts of thickeners, 0-0.6 parts of defoamers of fusion-grafting or copolymerization.
- A kind of 2. thermoplastic elastomers artificial leather according to claim 1, it is characterised in that the thermoplastic elastomers Body is SEBS elastomers；The unsaturation grafted monomers are maleic anhydride, in acrylic acid, acrylate, bismaleimide Any one；The polyurethane material is aqueous polyurethane, in polyethylene terephthalate, polybutylene terephthalate It is one or more；The thickener is polyacrylamide, the one or more in polyurethane thickener, alumina silicate；The defoaming Agent is polyether-modified organosiloxane defoamer, the one or more in polysiloxane defoaming agent, higher alcohols defoamer.
- 3. a kind of preparation method of thermoplastic elastomers artificial leather according to any one of claim 1-2, its feature exist In, including step in detail below：S1：The preparation of the elastomer-modified film of plastotype：Thermoplastic elastomers and unsaturated grafted monomers are weighed, are squeezed by twin-screw Go out that machine carries out fusion-grafting or copolymerization is granulated, obtain thermoplastic elastomers modified particle, modified particle is through curtain coating or biaxial tension, cold But thermoplastic elastomers modified film needed for being made；S2：The elastomer-modified film of plastotype made from S1 is affixed on base cloth layer, modified base cloth layer is made；S3：Polyurethane material, thickener are weighed, defoamer, 30% in thickener deal is mixed with polyurethane material, stirring 30min, then adds 30% in thickener deal, continues to stir 30min again, is eventually adding remaining 40% thickener, and The 50% of defoaming agent prescription total amount is added, stirs 3-5h；S4：Remaining defoamer is taken, adds the polyurethane material after the thickening obtained to S2 steps, stirs 2-3h；S5：Release liners are taken, product made from step S4 is poured into hopper, is uniformly layered in release liners, is sent into drying machine and dries Dry forming, is made resin bed；S6：Fitting：Base cloth layer made from resin bed made from S5, tack coat, S2 is arranged in order, high-pressure extrusion shaping, and It is sent into dryer and dries and cool down；S7：Separation winding：The product that step S6 is obtained carries out release liners stripping, and it is artificial that winding obtains required thermoplastic elastomers Leather.
- A kind of 4. preparation method of thermoplastic elastomers artificial leather according to claim 3, it is characterised in that the step In S1, double screw extruder fusion-grafting or copolyreaction temperature are 120-170 DEG C, and curtain coating or biaxial tension temperature are 180- 240 DEG C, cooling temperature is≤25 DEG C.
- A kind of 5. preparation method of thermoplastic elastomers artificial leather according to claim 3, it is characterised in that the step Speed of agitator is 3000-4500r/min in S3, and speed of agitator is 1500-2500r/min in step S4.
- A kind of 6. preparation method of thermoplastic elastomers artificial leather according to claim 3, it is characterised in that the step In S6, drying temperature is 115-135 DEG C, drying time 30-60s.
- A kind of 7. preparation method of thermoplastic elastomers artificial leather according to claim 3, it is characterised in that the step In S6, drying temperature is 180-220 DEG C, drying time 40-100s.
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| CN115593034A (en) * | 2021-07-08 | 2023-01-13 | 上海海优威新材料股份有限公司（Cn） | High-strippability radiation cross-linked polyolefin elastomer artificial leather |
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Address after: 215300, Skylark road 288, Kunshan economic and Technological Development Zone, Jiangsu, Suzhou Applicant after: Kunshan Achilles New Material Technology Co., Ltd Address before: 215300, Skylark road 288, Kunshan economic and Technological Development Zone, Jiangsu, Suzhou Applicant before: Kunshan Achilles Artificial Leather Co., Ltd. |
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