CN114703675B - Organic silicon synthetic leather for electronic packaging and preparation method thereof - Google Patents
Organic silicon synthetic leather for electronic packaging and preparation method thereof Download PDFInfo
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- CN114703675B CN114703675B CN202210215172.5A CN202210215172A CN114703675B CN 114703675 B CN114703675 B CN 114703675B CN 202210215172 A CN202210215172 A CN 202210215172A CN 114703675 B CN114703675 B CN 114703675B
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- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 173
- 239000010703 silicon Substances 0.000 title claims abstract description 173
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 239000002649 leather substitute Substances 0.000 title claims abstract description 45
- 238000004100 electronic packaging Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 132
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000004806 packaging method and process Methods 0.000 claims abstract description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 117
- 239000001257 hydrogen Substances 0.000 claims description 117
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 113
- 229920002050 silicone resin Polymers 0.000 claims description 77
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 76
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 69
- 229920002554 vinyl polymer Polymers 0.000 claims description 66
- 239000002344 surface layer Substances 0.000 claims description 56
- 229920002545 silicone oil Polymers 0.000 claims description 48
- 239000003431 cross linking reagent Substances 0.000 claims description 38
- 229910052697 platinum Inorganic materials 0.000 claims description 38
- HIHIPCDUFKZOSL-UHFFFAOYSA-N ethenyl(methyl)silicon Chemical compound C[Si]C=C HIHIPCDUFKZOSL-UHFFFAOYSA-N 0.000 claims description 37
- 229920001296 polysiloxane Polymers 0.000 claims description 36
- 239000003054 catalyst Substances 0.000 claims description 32
- 239000003112 inhibitor Substances 0.000 claims description 30
- 239000000945 filler Substances 0.000 claims description 24
- 239000006229 carbon black Substances 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000003963 antioxidant agent Substances 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 230000003078 antioxidant effect Effects 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 14
- 239000013464 silicone adhesive Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 10
- -1 polysiloxane Polymers 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000002759 woven fabric Substances 0.000 claims description 5
- 125000000623 heterocyclic group Chemical group 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- WZJUBBHODHNQPW-UHFFFAOYSA-N 2,4,6,8-tetramethyl-1,3,5,7,2$l^{3},4$l^{3},6$l^{3},8$l^{3}-tetraoxatetrasilocane Chemical compound C[Si]1O[Si](C)O[Si](C)O[Si](C)O1 WZJUBBHODHNQPW-UHFFFAOYSA-N 0.000 claims description 2
- MQSZOZMNAJHVML-UHFFFAOYSA-N 3-phenylbut-1-yn-1-ol Chemical compound OC#CC(C)C1=CC=CC=C1 MQSZOZMNAJHVML-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 claims description 2
- 229920002334 Spandex Polymers 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 239000004759 spandex Substances 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims 1
- 238000004383 yellowing Methods 0.000 abstract description 12
- 230000007062 hydrolysis Effects 0.000 abstract description 9
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 9
- 239000011229 interlayer Substances 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 5
- 239000005022 packaging material Substances 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 44
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 36
- 230000000052 comparative effect Effects 0.000 description 20
- 229920005989 resin Polymers 0.000 description 19
- 239000011347 resin Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000012360 testing method Methods 0.000 description 9
- 239000002253 acid Substances 0.000 description 8
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 8
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 7
- 238000004132 cross linking Methods 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 230000003373 anti-fouling effect Effects 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 239000005055 methyl trichlorosilane Substances 0.000 description 4
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 description 4
- 238000010189 synthetic method Methods 0.000 description 4
- GQIUQDDJKHLHTB-UHFFFAOYSA-N trichloro(ethenyl)silane Chemical compound Cl[Si](Cl)(Cl)C=C GQIUQDDJKHLHTB-UHFFFAOYSA-N 0.000 description 4
- 239000005051 trimethylchlorosilane Substances 0.000 description 4
- 239000005050 vinyl trichlorosilane Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000006459 hydrosilylation reaction Methods 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- CEBKHWWANWSNTI-UHFFFAOYSA-N 2-methylbut-3-yn-2-ol Chemical compound CC(C)(O)C#C CEBKHWWANWSNTI-UHFFFAOYSA-N 0.000 description 1
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001610 polycaprolactone Polymers 0.000 description 1
- 239000004632 polycaprolactone Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009965 tatting Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/146—Soilproof, soil repellent
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1678—Resistive to light or to UV
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1685—Wear resistance
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2213/00—Others characteristics
- D06N2213/02—All layers being of the same kind of material, e.g. all layers being of polyolefins, all layers being of polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses organic silicon synthetic leather for electronic packaging and a preparation method thereof, and belongs to the field of synthetic leather materials. The organic silicon synthetic leather is connected by arranging the specific three organic silicon layers, so that the adhesion between layers and between the obtained product and a base material is good, and the peeling phenomenon can not occur; meanwhile, the interlayer property is stable, the yellowing or color migration of the existing product is avoided, the color fastness is high, and the product has various properties such as yellowing resistance, hydrolysis resistance, wear resistance, stain resistance, high color fastness, thermal shock resistance and the like, and is particularly suitable for the field of packaging of electronic products with high requirements on the stability and the functionality of packaging materials. The invention also discloses a preparation method of the organic silicon synthetic leather for electronic packaging and application of the organic silicon synthetic leather in electronic product packaging.
Description
Technical Field
The invention relates to the field of synthetic leather materials, in particular to organic silicon synthetic leather for electronic packaging and a preparation method thereof.
Background
Electronic quick-release products such as mobile phones, notebooks, pad and the like are updated every year, and besides upgrading of software and hardware, the appearance design also becomes an important factor for consideration of consumers. After undergoing a series of changes from plastic, metal, glass, etc., the various large electronic brands have been carried with design elements of emerging materials such as leather, flannelette, etc. on flagship machines. The electronic product is different from the ice-cold hard appearance of the traditional electronic product, the touch sense is softened by adding leather and flannelette materials, the ancient plate impression of people on the ice-cold shell is changed, and the design elements of the electronic product are enriched. CN112195663a proposes a polyurethane synthetic leather for regenerated silk water-based solvent-free packaging, which comprises a water-based surface polyurethane layer, a water-based middle polyurethane layer, a polyester polycaprolactone blend type solvent-free polyurethane layer and a PET regenerated silk fiber layer from top to bottom in sequence; CN113756109a proposes a kind of aqueous suede electronic packaging material and its preparation method, this material uses aqueous polyurethane slurry to scrape and scribble on the flannelette, cooperate with a series of treatments such as buffing, surface printing, etc., have fine and smooth, skin-friendly and good advantage of air permeability of the flannelette; CN105601972a discloses a silica gel composite material for electronic products, which consists of two silica gel layers, PC, PET, ABS and other base material layers of sheets and films made of some materials, and has the characteristics of antifouling, dustproof, wear-resisting, scratch-resisting and the like.
Although the leather or flannelette is quite abundant in selection content, the materials have some problems in application, such as low color fastness, easy color migration in the use process, poor yellowing resistance and easy color change along with the increase of the use time. Meanwhile, the organic silicon system material has weak adhesion with various film materials, and is easy to peel when in use. CN109056350B proposes a method of combining a top-coat, a primer and a base material by using a combination of photo-curing and platinum curing to solve the problem of adhesiveness of the silicone leather, so that interlayer adhesion is improved to a certain extent, but the surface layer of the material has poor hydrolysis resistance, and after the surface layer is hydrolyzed, performances such as hand feeling and the like can be gradually lost, and finally the experience and the service cycle of a product are affected.
Disclosure of Invention
Based on the defects existing in the prior art, the invention aims to provide the organic silicon synthetic leather for electronic packaging, and the product adopts specific methyl vinyl silicone resin in the surface layer, so that the surface layer has obviously improved performances such as wear resistance, hydrolysis resistance, cold and hot impact resistance, antifouling property and the like compared with other resins; the product is provided with the transparent layer for filtering ultraviolet rays between the surface layer and the bonding layer, and simultaneously MQ hydrogen-containing silicone resin is introduced into the surface layer, the transparent layer and the bonding layer, so that the bonding property and ageing resistance between the layers are higher, and the final product has the advantages of yellowing resistance, hydrolysis resistance, wear resistance, stain resistance, high color fastness, thermal shock resistance and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an organic silicon synthetic leather for electronic packaging comprises an organic silicon surface layer, an organic silicon transparent layer, an organic silicon bonding layer and a base material from top to bottom;
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 5-50 parts of methyl vinyl silicone resin, 1-10 parts of MQ hydrogen-containing silicone resin, 1-15 parts of hydrogen-containing crosslinking agent, 1-50 parts of filler, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor; the methyl vinyl silicone resin is MDT-structure methyl vinyl silicone resin;
the components of the organic silicon transparent layer and the organic silicon bonding layer comprise MQ hydrogen-containing silicone resin.
In the organic silicon surface layer of the organic silicon synthetic leather for electronic packaging, as the methyl vinyl silicone resin is of an MDT type planarization structure, the methyl vinyl silicone resin can be uniformly distributed on the surface layer, and a compact planar reticular structure is formed by the reaction of the vinyl of the resin, the MQ-containing hydrogen silicone resin and the hydrogen-containing cross-linking agent, so that the strength, the hardness and the air tightness of the surface layer material are improved, meanwhile, the free D chain link plays an internal plasticization role, a certain toughness can be ensured, and the improvement of the performances such as the wear resistance, the hydrolysis resistance, the cold and hot impact resistance and the antifouling property of the organic silicon surface layer is facilitated; meanwhile, MQ type hydrogen-containing silicone resin is introduced into each layer except the foundation, the components belong to a body type structure, after the organic silicon surface layer is solidified, active hydrogen only reacts a part, a small amount of residual active hydrogen still exists due to steric hindrance, one part of residual active hydrogen reacts with the other components (vinyl silicone oil and methyl vinyl silicone resin) under the action of a platinum catalyst, and the other part forms silicon hydroxyl groups, and the two components are helpful for increasing interlayer adhesion of each layer. In addition, the MQ hydrogen-containing silicon resin can keep part of silicon hydroxyl in the synthesis process, and the adhesion between layers and between the organic silicon adhesive layer and the base cloth can be further increased due to the fact that the polarity of the silicon hydroxyl is larger.
In addition, the inventor introduces an organic silicon transparent layer between the organic silicon surface layer and the organic silicon bonding layer, which is mainly used for filtering ultraviolet rays of the light-transmitting product, so that the aging effect of the ultraviolet rays on main materials of the organic silicon transparent layer and the organic silicon bonding layer and pigment chemical bonds is avoided, and the yellowing phenomenon of the product is further prevented; as the adhesive layer of the existing product is provided with a plurality of pigments, the organic silicon transparent layer can also effectively prevent pigment molecules from migrating to the surface of the organic silicon synthetic leather, and the color fastness of the product is improved.
Preferably, the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 10-40 parts of methyl vinyl silicone resin, 3-8 parts of MQ hydrogen-containing silicone resin, 1-10 parts of hydrogen-containing crosslinking agent, 5-35 parts of filler, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor.
In the components of the organic silicon surface layer, methyl vinyl silicone resin, MQ hydrogen-containing silicone resin and a hydrogen-containing cross-linking agent react with vinyl silicone oil, so that the proportion of the three has influence on the properties of adhesiveness, weather resistance, wear resistance and the like of the product, and the introduction of filler has influence on the properties of wear resistance, hand feeling and the like of the product. Preferably, the organic silicon surface layer has better overall performance by the proportion.
Preferably, the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 1-10 parts of MQ hydrogen-containing silicone resin, 0.1-10 parts of antioxidant, 1-20 parts of hydrogen-containing crosslinking agent, 0.1-10 parts of platinum catalyst and 0.03-3 parts of inhibitor.
The content of the MQ hydrogen-containing silicone resin and the hydrogen-containing cross-linking agent in the components of the organic silicon transparent layer has influence on the adhesiveness and the anti-aging property of the organic silicon transparent layer, and the organic silicon transparent layer prepared by the above proportion has better comprehensive effect through screening by the inventor.
More preferably, the silicone transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 2-5 parts of MQ hydrogen-containing silicone resin, 1-6 parts of antioxidant, 3-15 parts of hydrogen-containing crosslinking agent, 0.1-10 parts of platinum catalyst and 0.03-3 parts of inhibitor.
Preferably, the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 1-30 parts of methyl vinyl silicone resin, 1-50 parts of carbon black, 1-10 parts of MQ hydrogen-containing silicone resin, 1-15 parts of hydrogen-containing cross-linking agent, 1-20 parts of color paste, 0.1-10 parts of tackifier, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor.
More preferably, the silicone adhesive layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 6-25 parts of methyl vinyl silicone resin, 10-36 parts of carbon black, 3-8 parts of MQ hydrogen-containing silicone resin, 2-10 parts of hydrogen-containing cross-linking agent, 1-20 parts of color paste, 0.5-5 parts of tackifier, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor.
Preferably, the viscosity of vinyl silicone oil in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is 500-1000000 mPas at 25 ℃.
More preferably, the viscosity of the vinyl silicone oil is 2000 to 500000mPas at 25 ℃.
More preferably, the vinyl silicone oil has a vinyl group content of 0.02 to 1.00% by mass.
The molecular chain of the vinyl silicone oil at least contains 2 vinyl groups directly bonded with silicon atoms, and the vinyl groups are selected according to the actual situation, and can be positioned at any position of the molecular chain (comprising two ends or side positions of the molecular chain). When the viscosity of the vinyl silicone oil is too low, the molecular chain is short, and the obtained colloid has high brittleness after crosslinking with other resin components; when the viscosity is too high, the performance of the product is reduced during processing, and the viscosity and the performance are not favorable for the production and the use of the product.
Preferably, the methyl vinyl silicone resin in the silicone facing layer and silicone adhesive layer components has a weight average molecular weight of 2500 to 25000.
More preferably, the vinyl mass percentage of the methyl vinyl silicone resin is 0.5-7.0%.
When the molecular weight is too small, the reinforcing effect of the methyl vinyl silicone resin on the organic silicon surface layer and the bonding layer is insufficient, and the macroscopic abrasion resistance of the product is weakened; when the molecular weight is too large, the compatibility with components such as vinyl silicone oil is affected, and the whole processability is insufficient. Meanwhile, the methyl vinyl silicone resin at least contains more than 2 vinyl groups on a single molecular structure, and the vinyl groups are distributed on a T chain link. When the vinyl content in the material is too low, the crosslinking points between the material and the hydrogen-containing crosslinking agent in the organic silicon surface layer and the adhesive layer are too small, the reinforcing effect cannot be fully exerted, but the too high vinyl content influences the overall elasticity of the crosslinked components, and the application range is narrowed.
Preferably, the active hydrogen mass percent of the MQ hydrogen-containing silicone resin in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is 0.1-1.5%, and the hydroxyl mass percent is 0.1-1.5%.
The molecular chain of the active hydrogen of the MQ hydrogen-containing silicon resin at least contains more than 3 active hydrogen directly bonded with silicon atoms, and meanwhile, a certain amount of hydroxyl groups need to be carried on the material, if the content of the hydroxyl groups is insufficient, the crosslinking degree of each layer of the composition is insufficient, and the interlayer adhesiveness is poor; however, too much hydroxyl group content results in poor stability of the MQ-type hydrogen-containing silicone resin, which is disadvantageous for storage of the product.
Preferably, the weight average molecular weight of the MQ hydrogen-containing silicone resin is 2500-20000.
Preferably, the hydrogen-containing cross-linking agent in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is hydrogen-containing polysiloxane with trimethyl end caps at two ends, the mass percent of active hydrogen is 0.15-1.55%, and the viscosity at 25 ℃ is 10-1000 mPas.
Preferably, the mass ratio of the active hydrogen content to the vinyl content in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is (0.5-5): 1.
the degree of crosslinking reaction and the tolerance of active hydrogen and vinyl in the raw materials and components between layers are greatly related, and if the content of active hydrogen in each component system is insufficient (or the content of vinyl is too high), the degree of crosslinking reaction of each component in the system is insufficient, the crosslinking degree is poor, the adhesion between layers is insufficient and the strength is also poor; if the active hydrogen content is too high (or the vinyl content is insufficient), the cold and hot impact resistance of the final product is reduced. Through screening, the usability between layers is optimal when the mixture ratio is adopted.
Preferably, the filler in the silicone facing component is a spherical filler.
More preferably, the spherical filler is at least one of spherical silica micropowder and spherical alumina, and the particle size of the spherical filler is 5-20 mu m.
The filler in the organosilicon surface layer component has great influence on the properties of the integral antifouling property, the wear resistance and the like, especially the particle size of the filler, if the particle size of the filler is too large, the hand feeling of the organosilicon surface layer becomes coarse, and the wear resistance is insufficient; however, if the particle size of the filler is too small, the stain resistance of the silicone surface layer cannot be improved, and therefore, a filler having a particle size of 5 to 20 μm is most suitable.
Preferably, the carbon black in the silicone adhesive layer component is white carbon black.
More preferably, the white carbon black is prepared by a gas phase method or a precipitation method; the specific surface area of the white carbon black is 100-400 m 2 /g。
More preferably, the white carbon black is a hydrophobic white carbon black treated with a surfactant.
The white carbon black with large specific surface area and treated by the active agent can be better combined with vinyl silicone oil, and the obtained organosilicon adhesive layer has better adhesion.
Preferably, the color paste in the silicone adhesive layer component is a mixture of toner and vinyl silicone oil.
Preferably, the tackifier in the organosilicon adhesive layer component is epoxy modified silicone oil.
The tackifier is used for better coupling the organosilicon adhesive layer and the base material and improving the adhesion of the organosilicon adhesive layer and the base material, so that commercially available epoxy modified silicone oil can be selected.
Preferably, the antioxidant in the organic silicon transparent layer component is at least one of hindered phenol antioxidants, hindered amine antioxidants and heterocyclic antioxidants.
More preferably, the antioxidant is a heterocyclic antioxidant.
The heterocyclic antioxidant can have better compatibility with other components of the organic silicon synthetic leather.
Preferably, the platinum catalyst in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is at least one of simple substance platinum and a platinum-containing compound.
The platinum catalyst used between the layers is mainly used for catalyzing hydrosilylation reaction among components, and specifically can be selected from inorganic matters such as chloroplatinic acid, various coordination organic compounds of platinum and the like, but is not limited to the inorganic matters.
Preferably, the inhibitor in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is at least one of 3-methyl-1-butyn-3-ol, 1-acetylene-1-cyclohexanol, phenyl butynol and the like, tetramethyl divinyl disiloxane, 1,3,5, 7-tetramethyl cyclotetrasiloxane and polyvinyl silicone oil.
In combination with platinum catalysts, inhibitors primarily function to control the rate of hydrosilylation reactions and thus include, but are not limited to, similar compounds as described above.
Preferably, the base material is a woven fabric, and the woven fabric is woven by at least one of terylene, spandex, viscose, pure cotton fiber, glass fiber, aramid fiber and carbon fiber.
The organic silicon synthetic leather for electronic packaging can be prepared by selecting various different fabrics as a base material, spinning the fabrics independently or by mixing the fabrics, knitting, tatting or non-woven fabric knitting and other processes, wherein the fabrics can be prepared by selecting different deniers (50D, 75D and 100D) according to actual needs, and meanwhile, the fabrics can be subjected to specific modification before use so as to change the contained fiber tissues, thereby widening the application range of products.
More preferably, the thickness of the substrate is 0.1 to 1mm.
The invention further provides a preparation method of the organic silicon synthetic leather for electronic packaging, which comprises the following steps:
(1) Uniformly mixing the components of the organic silicon surface layer, coating the mixture on release paper, and heating and preserving heat;
(2) Uniformly mixing all components of the organic silicon transparent layer, coating the organic silicon transparent layer on the organic silicon surface layer obtained in the step (1), and heating and preserving heat;
(3) Uniformly mixing all components of the organic silicon bonding layer, coating the organic silicon bonding layer on the organic silicon transparent layer obtained in the step (2), placing a substrate on the coating layer, and then heating and preserving heat;
(4) And stripping the release paper to obtain the organic silicon synthetic leather for electronic packaging.
The preparation method of the organic silicon synthetic leather for electronic packaging has simple operation steps and can realize industrialized mass production.
Preferably, the heating and heat preservation in the steps (1) - (3) are performed in a tunnel oven heated by hot air.
Preferably, the heating and heat-preserving temperature in the steps (1) to (3) is 100 to 150 ℃.
Preferably, the heating and heat-preserving time in the steps (1) to (3) is 1 to 10min.
Preferably, the thickness of the coating in the step (1) is set to 2-15 filaments.
The organosilicon surface layer mainly relates to the properties of wear resistance, weather resistance and the like of the whole product, and if the coating thickness is too thin, the wear resistance of the product is affected, but if the coating thickness is too thick, the thermal shock resistance of the product is affected.
Preferably, the thickness of the coating in the step (2) is set to 10-30 filaments.
The organic silicon transparent layer contains a color paste component, so that the thickness of the organic silicon transparent layer has a certain influence on yellowing resistance and color fastness of a product, and if the organic silicon transparent layer is too thin, the yellowing resistance of the product is influenced, and the color fastness is not high; however, too thick a thickness can make the texture of the product unclear.
Preferably, the thickness of the coating in the step (3) is set to 3 to 40 filaments.
According to the actual needs and the types of the base materials, the thickness of the organosilicon adhesive layer can be regulated and controlled by the skilled in the art to achieve the ideal effect.
Another object of the invention is to provide the application of the organic silicon synthetic leather for electronic packaging in electronic product packaging.
The product has various performances such as yellowing resistance, hydrolysis resistance, wear resistance, stain resistance, high color fastness, thermal shock resistance and the like, and is particularly suitable for the field of packaging of electronic products with higher requirements on the stability of packaging materials.
The organic silicon synthetic leather for electronic packaging has the beneficial effects that the organic silicon synthetic leather for electronic packaging is provided, and the organic silicon synthetic leather is connected by arranging the specific three organic silicon layers, so that the adhesion between layers of the obtained product and between the obtained product and a base material is good, and the peeling phenomenon can not occur; meanwhile, the interlayer property is stable, the yellowing or color migration of the existing product is avoided, the color fastness is high, and the product has various properties such as yellowing resistance, hydrolysis resistance, wear resistance, stain resistance, high color fastness, thermal shock resistance and the like, and is particularly suitable for the field of packaging of electronic products with high requirements on the stability and the functionality of packaging materials. The invention also provides a preparation method of the organic silicon synthetic leather for electronic packaging and application of the organic silicon synthetic leather in electronic product packaging.
Detailed Description
The present invention will be further described with reference to specific examples and comparative examples for better illustrating the objects, technical solutions and advantages of the present invention, and the object of the present invention is to be understood in detail, not to limit the present invention. All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present invention. The experimental reagents and instruments designed in the practice and comparative examples of the present invention are common reagents and instruments unless otherwise specified.
Most of the raw materials used in the invention are selected from commercial products, wherein vinyl silicone oil (viscosity is 10000mPas at 25 ℃, the mass percentage of vinyl is 0.12%), vinyl silicone oil (viscosity is 3000mPas at 25 ℃, the mass percentage of vinyl is 0.19%), and vinyl silicone oil (viscosity is 5000mPas at 25 ℃ and the mass percentage of vinyl is 0.16%) are respectively selected from FLUID7110-10000, FLUID7110-3000 and FLUID7110-5000 of Zhejiang organosilicon materials; the MQ type hydrogen-containing silicon resin (weight average molecular weight 8000, active hydrogen mass percent content is 0.3%, hydroxyl mass percent content is 0.3%), and the MQ type hydrogen-containing silicon resin (weight average molecular weight 8000, active hydrogen mass percent content is 0.3%, and hydroxyl mass percent content is 0.05%) are selected from commercial XJY-8207A, XJY-8207B model products of Jia Yi Limited of Jia Ji Yi, jia, west; a hydrogen-containing crosslinking agent (both-terminal trimethyl-terminated hydrogen-containing polysiloxane having a mass% of active hydrogen and a viscosity of 120mPas at 25 ℃), a hydrogen-containing crosslinking agent (both-terminal trimethyl-terminated hydrogen-containing polysiloxane having a mass% of active hydrogen and a viscosity of 100mPas at 25 ℃) and a hydrogen-containing crosslinking agent (both-terminal trimethyl-terminated hydrogen-containing polysiloxane having a mass% of active hydrogen and a viscosity of 60mPas at 25 ℃) are selected from commercially available products of Jiangxi Xinjia Jiujia New material Co., ltd.); the hydrogen-containing crosslinking agent (hydrogen-containing polysiloxane blocked with dimethylhydrogen at both ends) is selected from the commercial 711 series model products of Jiangxi New material Co.
Example 1
According to one embodiment of the organic silicon synthetic leather for electronic packaging and the preparation method thereof, the organic silicon synthetic leather for electronic packaging comprises an organic silicon surface layer, an organic silicon transparent layer, an organic silicon bonding layer and a base material from top to bottom;
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil (viscosity is 10000mPas at 25 ℃, vinyl mass percent content is 0.12%), 30 parts of MDT structure methyl vinyl silicone resin (weight average molecular weight 4500, vinyl mass percent content is 2.7%), 6 parts of MQ hydrogen-containing silicone resin (weight average molecular weight 8000, active hydrogen mass percent content is 0.3%, hydroxyl mass percent content is 0.3%), 5 parts of hydrogen-containing cross-linking agent (trimethyl-terminated hydrogen-containing polysiloxane at two ends, active hydrogen mass percent content is 0.75%), viscosity is 120mPas at 25 ℃, spherical silica powder, average particle size is 10 mu m) 15 parts of filler, 1 part of platinum catalyst (isopropanol solution of chloroplatinic acid, concentration is 10000 ppm) and 0.3 part of inhibitor (1-ethynyl-1-cyclohexanol);
the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil (viscosity is 3000mPas at 25 ℃, vinyl mass percent content is 0.19%), 4 parts of MQ hydrogen-containing silicone resin (weight average molecular weight is 8000, active hydrogen mass percent content is 0.3%, hydroxyl mass percent content is 0.3%), 2 parts of antioxidant (antioxidant 1024), 10 parts of hydrogen-containing cross-linking agent (trimethyl-terminated hydrogen-containing polysiloxane at both ends, active hydrogen mass percent content is 0.5%, viscosity is 100mPas at 25 ℃), 1 part of platinum catalyst (isopropanol solution of chloroplatinic acid, concentration is 10000 ppm) and 1 part of inhibitor (1-ethynyl-1-cyclohexanol);
the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil (viscosity is 5000mPas at 25 ℃ C., vinyl mass percent content is 0.16%), 20 parts of MDT structural methyl vinyl silicone resin (weight average molecular weight 4500, vinyl mass percent content is 2.7%), and carbon black (white carbon black, prepared by a gas phase method, with specific surface area of 200 m) 2 30 parts of MQ hydrogen-containing silicone resin (weight average molecular weight 8000, active hydrogen mass percent of 0.3%, hydroxyl mass percent of 0.3%), hydrogen-containing crosslinking agent (trimethyl-terminated hydrogen-containing polysiloxane at both ends, active hydrogen mass percent of 1.0%, viscosity at 25 ℃ C. Of 60 mPas) 6 parts, color paste 5 parts, tackifier (epoxy modified silicone oil, epoxy value of 0.3) 3 parts, platinum catalyst (isopropyl alcohol solution of chloroplatinic acid, concentration of 10000 ppm) 0.8 parts and inhibitor (1-ethynyl-1-cyclohexanol) 0.6 parts;
the synthetic method of the MDT structural resin in the embodiment comprises the following steps: in a four-necked flask, 2250 parts of deionized water and 500 parts of toluene are added, a constant pressure funnel is used, 100 parts of trimethylchlorosilane, 600 parts of dimethyldichlorosilane, 80 parts of vinyltrichlorosilane, 300 parts of methyltrichlorosilane and 2000 parts of toluene are added, and after uniform mixing, the mixture is dropwise added into the four-necked flask at 50-60 ℃ for 3 hours. Standing for layering, and removing the lower acid water. Washing the upper resin solution to neutrality, drying calcium chloride, and evaporating toluene to obtain the MDT structural silicon resin.
The base material is a woven fabric woven by polyester with 75D titer, and the thickness is 0.4mm;
the preparation method of the organic silicon synthetic leather for electronic packaging comprises the following steps:
(1) Uniformly mixing the components of the organic silicon surface layer, coating (coating thickness 10 filaments) on release paper, and preserving heat for 5min at 140 ℃ in a tunnel oven heated by hot air;
(2) Uniformly mixing all components of the organic silicon transparent layer, coating (coating the thickness of 20 filaments) on the organic silicon surface layer obtained in the step (1), and preserving heat for 3min at 135 ℃ in a tunnel oven heated by hot air;
(3) Uniformly mixing all components of the organic silicon bonding layer, coating (coating thickness of 20 wires) on the organic silicon transparent layer obtained in the step (2) and placing a substrate on the coating layer, and then preserving heat for 3min at 130 ℃ in a tunnel oven heated by hot air;
(4) And stripping the release paper to obtain the organic silicon synthetic leather for electronic packaging.
Example 2
The difference between this example and example 1 is only that the MDT structured methyl vinyl silicone resin in the components of the silicone surface layer and the silicone adhesive layer has a weight average molecular weight of 10000 and a vinyl mass percentage of 0.3%.
The synthetic method of the MDT structural resin in the embodiment comprises the following steps: in a four-necked flask, 2250 parts of deionized water and 500 parts of toluene are added, a constant pressure funnel is used, 100 parts of trimethylchlorosilane, 600 parts of dimethyldichlorosilane, 10 parts of vinyltrichlorosilane, 360 parts of methyltrichlorosilane and 2000 parts of toluene are added, and after uniform mixing, the mixture is dropwise added into the four-necked flask at 50-60 ℃ for 5 hours. Standing for layering, and removing the lower acid water. Washing the upper resin solution to neutrality, drying calcium chloride, and evaporating toluene to obtain the MDT structural silicon resin.
Example 3
The difference between this example and example 1 is only that the MDT structured methyl vinyl silicone resin in the components of the silicone surface layer and the silicone adhesive layer has a weight average molecular weight of 10000 and a vinyl mass percentage of 8%.
The synthetic method of the MDT structural resin in the embodiment comprises the following steps: in a four-necked flask, 2250 parts of deionized water and 500 parts of toluene are added, a constant pressure funnel is used, 100 parts of trimethylchlorosilane, 600 parts of dimethyldichlorosilane, 200 parts of vinyltrichlorosilane, 220 parts of methyltrichlorosilane and 2000 parts of toluene are added, and after uniform mixing, the mixture is dropwise added into the four-necked flask at 50-60 ℃ for 5 hours. Standing for layering, and removing the lower acid water. Washing the upper resin solution to neutrality, drying calcium chloride, and evaporating toluene to obtain the MDT structural silicon resin.
Example 4
The only difference between this example and example 1 is that the MDT structure methyl vinyl silicone resin in the components of the silicone surface layer and the silicone adhesive layer has a weight average molecular weight of 1500 and a vinyl mass percentage of 2.7%.
The synthetic method of the MDT structural resin in the embodiment comprises the following steps: in a four-necked flask, 2250 parts of deionized water and 500 parts of toluene are added, a constant pressure funnel is used, 100 parts of trimethylchlorosilane, 600 parts of dimethyldichlorosilane, 80 parts of vinyltrichlorosilane, 300 parts of methyltrichlorosilane and 2000 parts of toluene are added, and after uniform mixing, the mixture is dropwise added into the four-necked flask at 50-60 ℃ for 1 hour. Standing for layering, and removing the lower acid water. Washing the upper resin solution to neutrality, drying calcium chloride, and evaporating toluene to obtain the MDT structural silicon resin.
Example 5
The difference between this example and example 1 is only that the MQ-containing silicone resin in the components of the silicone surface layer, the silicone transparent layer and the silicone adhesive layer has a weight average molecular weight of 8000, and the active hydrogen mass percentage is 0.3% and the hydroxyl mass percentage is 0.05%.
Example 6
The only difference between this example and example 1 is that the average particle size of the filler in the composition of the silicone facing layer was 1 μm.
Example 7
This embodiment differs from embodiment 1 only in that,
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 10 parts of MDT structure methyl vinyl silicone resin, 8 parts of MQ hydrogen-containing silicone resin, 8 parts of hydrogen-containing cross-linking agent, 20 parts of filler, 1 part of platinum catalyst and 0.3 part of inhibitor;
the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 2 parts of MQ hydrogen-containing silicone resin, 2 parts of antioxidant, 15 parts of hydrogen-containing cross-linking agent, 1 part of platinum catalyst and 1 part of inhibitor;
the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 20 parts of MDT structural methyl vinyl silicone resin, 30 parts of carbon black, 5 parts of MQ hydrogen-containing silicone resin, 6 parts of hydrogen-containing cross-linking agent, 5 parts of color paste, 3 parts of tackifier, 0.8 part of platinum catalyst and 0.6 part of inhibitor.
Example 8
This embodiment differs from embodiment 1 only in that,
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 40 parts of MDT structure methyl vinyl silicone resin, 4 parts of MQ hydrogen-containing silicone resin, 3 parts of hydrogen-containing cross-linking agent, 10 parts of filler, 1 part of platinum catalyst and 0.3 part of inhibitor;
the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 4 parts of MQ hydrogen-containing silicone resin, 2 parts of antioxidant, 10 parts of hydrogen-containing cross-linking agent, 1 part of platinum catalyst and 1 part of inhibitor;
the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 25 parts of MDT structural methyl vinyl silicone resin, 30 parts of carbon black, 8 parts of MQ hydrogen-containing silicone resin, 4 parts of hydrogen-containing cross-linking agent, 5 parts of color paste, 3 parts of tackifier, 0.8 part of platinum catalyst and 0.6 part of inhibitor.
Example 9
This embodiment differs from embodiment 1 only in that,
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 30 parts of MDT structure methyl vinyl silicone resin, 6 parts of MQ hydrogen-containing silicone resin, 5 parts of hydrogen-containing cross-linking agent, 15 parts of filler, 1 part of platinum catalyst and 0.3 part of inhibitor;
the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 5 parts of MQ hydrogen-containing silicone resin, 2 parts of antioxidant, 13 parts of hydrogen-containing cross-linking agent, 1 part of platinum catalyst and 1 part of inhibitor;
the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 15 parts of MDT structural methyl vinyl silicone resin, 25 parts of carbon black, 3 parts of MQ hydrogen-containing silicone resin, 8 parts of hydrogen-containing cross-linking agent, 5 parts of color paste, 3 parts of tackifier, 0.8 part of platinum catalyst and 0.6 part of inhibitor.
Example 10
This embodiment differs from embodiment 1 only in that,
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 5 parts of MDT structural methyl vinyl silicone resin, 9 parts of MQ hydrogen-containing silicone resin, 12 parts of hydrogen-containing cross-linking agent, 40 parts of filler, 1 part of platinum catalyst and 0.3 part of inhibitor.
Example 11
This embodiment differs from embodiment 1 only in that,
the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 7 parts of MQ hydrogen-containing silicone resin, 2 parts of antioxidant, 18 parts of hydrogen-containing crosslinking agent, 1 part of platinum catalyst and 1 part of inhibitor.
Example 12
This embodiment differs from embodiment 1 only in that,
the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 5 parts of MDT structure methyl vinyl silicone resin, 30 parts of carbon black, 9 parts of MQ hydrogen-containing silicone resin, 12 parts of hydrogen-containing cross-linking agent, 5 parts of color paste, 3 parts of tackifier, 0.8 part of platinum catalyst and 0.6 part of inhibitor.
Comparative example 1
The present comparative example differs from example 1 only in that the MDT structure methyl vinyl silicone resin in the components of the silicone face layer and the silicone adhesive layer is replaced with an MQ structure methyl vinyl silicone resin.
Comparative example 2
The comparative example differs from example 1 only in that the components of the silicone top layer and the silicone adhesive layer do not contain a methyl vinyl silicone resin of MDT structure.
Comparative example 3
The present comparative example differs from example 1 only in that the components of the silicone top layer, the silicone transparent layer, and the silicone adhesive layer do not contain MQ-type hydrogen-containing silicone resin.
Comparative example 4
The comparative example differs from example 1 only in that the hydrogen-containing crosslinking agent in the components of the silicone top layer, the silicone transparent layer, and the silicone adhesive layer is a siloxane of a hydrogen-containing polysiloxane structure with both ends being dimethylhydrogen-terminated.
Comparative example 5
The difference between this comparative example and example 1 is only that the thickness of the silicone topcoat at the time of coating was 1 filament.
Comparative example 6
The difference between this comparative example and example 1 is only that the thickness of the silicone topcoat at the time of coating was 20 filaments.
Comparative example 7
The difference between this comparative example and example 1 is only that the thickness of the silicone transparent layer at the time of coating was 5 filaments.
Comparative example 8
The comparative example differs from example 1 only in that the thickness at the time of the silicone transparent layer coating was 40 filaments.
Effect example 1
To verify the performance of the products according to the invention, the following performance tests were carried out on the respective examples and comparative examples:
(1) Adhesion: cutting each product into the same size, performing a water boiling test for 6 hours, observing the surface change of the product by using a magnifying glass (10 times of magnification) after finishing, and simultaneously doubling the sample to observe whether delamination or falling-off between layers or between a glue layer and a base material exists;
(2) Yellowing resistance: testing each sample according to an ASTM G154-2016 standard method, wherein the test grade is more than or equal to grade 4 and is regarded as qualified;
(3) Hydrolysis resistance: testing each sample according to the ASTM D3690-2002 standard method for 10 weeks, and observing whether the surface of the sample changes or not by using a magnifying glass (10 times of magnification) after the test is finished;
(4) Abrasion resistance: applying 1kg load friction 100000 times on each sample surface by taking standard jean as friction surface, and observing the damage condition change of the sample surface by adopting a magnifying glass (10 times magnification) after finishing;
(5) Stain resistance: after each sample is placed on the plane, an oily mark is used for strokes along with a line of 5cm on the surface of the sample, the line is wiped back and forth by using a rag wetted by clean water for 5 times after standing for 24 hours, and the residual condition of stains on the surface is checked and rated by adopting the following standard;
stage 1: the trace is obvious and almost no;
2 stages: the trace is obvious and has partial removal;
3 stages: the trace is shallow and is almost removed;
4 stages: trace is completely removed;
(6) Color fastness: sample testing is carried out by adopting an ISO 105X12 standard test, and standard gray color card judgment grades are adopted, and the test grade is more than or equal to 4 grade and is regarded as qualified;
(7) Cold and hot impact resistance: placing each sample in a cold and hot impact box, setting 79+/-3 ℃ and 16+/-0.5 h; -10 times of temperature-changing circulation at 30+/-3 ℃ for 8+/-0.5 h, and carrying out planar placement and doubling-up to observe the surface condition of the sample;
(8) Hardness: each sample is scratched by a pencil with H-level hardness of 1-10N, and the sample surface is not damaged after being tested when the strength of less than 5N is applied, so that the sample surface is qualified;
(9) Line definition: and observing the definition of the surface texture of each sample by naked eyes.
The test results are shown in tables 1 and 2.
TABLE 1
TABLE 2
As is clear from tables 1 and 2, the products of examples 1 to 12 exhibited good adhesion, yellowing resistance, hydrolysis resistance, abrasion resistance, stain resistance, cold and hot impact resistance, as well as high color fastness, high hardness, and clear surface texture, as compared with the products of comparative examples. Of these, the products of example 1 and examples 7 to 9 were the most excellent in combination.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (15)
1. The organic silicon synthetic leather for electronic packaging is characterized by comprising an organic silicon surface layer, an organic silicon transparent layer, an organic silicon bonding layer and a base material from top to bottom;
the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 5-50 parts of methyl vinyl silicone resin, 1-10 parts of MQ hydrogen-containing silicone resin, 1-15 parts of hydrogen-containing cross-linking agent, 1-50 parts of filler, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor;
the organic silicon transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 1-10 parts of MQ hydrogen-containing silicone resin, 0.1-10 parts of antioxidant, 1-20 parts of hydrogen-containing crosslinking agent, 0.1-10 parts of platinum catalyst and 0.03-3 parts of inhibitor;
the organic silicon bonding layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 1-30 parts of methyl vinyl silicone resin, 1-50 parts of carbon black, 1-10 parts of MQ hydrogen-containing silicone resin, 1-15 parts of hydrogen-containing cross-linking agent, 1-20 parts of color paste, 0.1-10 parts of tackifier, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor;
the components of the organic silicon transparent layer and the organic silicon bonding layer comprise MQ hydrogen-containing silicone resin; methyl vinyl silicone resin in the components of the organic silicon surface layer and the organic silicon bonding layer is MDT-structure methyl vinyl silicone resin, the weight average molecular weight is 2500-25000, and the vinyl mass percentage content is 0.5-7.0%;
the hydrogen-containing cross-linking agent in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is hydrogen-containing polysiloxane with trimethyl end caps at two ends, the mass percentage of active hydrogen is 0.15-1.55%, and the viscosity at 25 ℃ is 10-1000 mPas;
the thickness of the organic silicon surface layer is 2-15 filaments; the thickness of the organic silicon transparent layer is 10-30 filaments; the thickness of the organic silicon bonding layer is 3-40 filaments.
2. The organic silicon synthetic leather for electronic packaging according to claim 1, wherein the organic silicon surface layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 10-40 parts of methyl vinyl silicone resin, 3-8 parts of MQ hydrogen-containing silicone resin, 1-10 parts of hydrogen-containing cross-linking agent, 5-35 parts of filler, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor.
3. The silicone synthetic leather for electronic packaging as set forth in claim 1, wherein the silicone transparent layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 2-5 parts of MQ hydrogen-containing silicone resin, 1-6 parts of antioxidant, 3-15 parts of hydrogen-containing crosslinking agent, 0.1-10 parts of platinum catalyst and 0.03-3 parts of inhibitor.
4. The silicone synthetic leather for electronic packaging as set forth in claim 1, wherein the silicone adhesive layer comprises the following components in parts by weight: 100 parts of vinyl silicone oil, 6-25 parts of methyl vinyl silicone resin, 10-36 parts of carbon black, 3-8 parts of MQ hydrogen-containing silicone resin, 2-10 parts of hydrogen-containing cross-linking agent, 1-20 parts of color paste, 0.5-5 parts of tackifier, 0.1-10 parts of platinum catalyst and 0.01-5 parts of inhibitor.
5. The organic silicon synthetic leather for electronic packaging according to claim 1, wherein the viscosity of vinyl silicone oil in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is 500-1000000 mPas at 25 ℃, and the mass percentage of vinyl is 0.02-1.00%.
6. The organic silicon synthetic leather for electronic packaging according to claim 1, wherein the weight average molecular weight of the MQ hydrogen-containing silicone resin in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is 2500-20000, the mass percentage of active hydrogen is 0.1-1.5%, and the mass percentage of hydroxyl is 0.1-1.5%.
7. The organic silicon synthetic leather for electronic packaging according to claim 1, wherein the mass ratio of active hydrogen content to vinyl content in the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is (0.5-5): 1.
8. the silicone synthetic leather for electronic packaging according to claim 1, wherein the filler in the silicone top layer component is a spherical filler;
the spherical filler is at least one of spherical silica micropowder and spherical alumina, and the particle size of the spherical filler is 5-20 mu m.
9. The organic silicon synthetic leather for electronic packaging according to claim 1, comprising at least one of the following (a) - (g):
(a) The carbon black in the organic silicon bonding layer component is white carbon black;
(b) The carbon black in the organosilicon adhesive layer component is prepared by a gas phase method or a precipitation method; the specific surface area of the carbon black is 100-400 m 2 /g；
(c) The color paste in the organic silicon bonding layer component is a mixture of toner and vinyl silicone oil;
(d) The tackifier in the organic silicon adhesive layer component is epoxy modified silicone oil;
(e) The antioxidant in the organic silicon transparent layer component is at least one of hindered phenol antioxidants, hindered amine antioxidants and heterocyclic antioxidants;
(f) The platinum catalyst in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is at least one of simple substance platinum and a platinum-containing compound;
(g) The inhibitor in the components of the organic silicon surface layer, the organic silicon transparent layer and the organic silicon bonding layer is at least one of 3-methyl-1-butyn-3-alcohol, 1-acetylene-1-cyclohexanol, phenyl butynol, tetramethyl divinyl disiloxane, 1,3,5, 7-tetramethyl cyclotetrasiloxane and polyvinyl silicone oil.
10. The organic silicon synthetic leather for electronic packaging according to claim 1, wherein the base material is a woven fabric, and the woven fabric is woven from at least one of polyester, spandex, viscose, pure cotton, glass fiber, aramid and carbon fiber.
11. The silicone synthetic leather for electronic packaging of claim 10, wherein the thickness of the substrate is 0.1 to 1mm.
12. The method for preparing the organic silicon synthetic leather for electronic packaging according to any one of claims 1 to 11, which is characterized by comprising the following steps:
(1) Uniformly mixing the components of the organic silicon surface layer, coating the mixture on release paper, and heating and preserving heat;
(2) Uniformly mixing all components of the organic silicon transparent layer, coating the organic silicon transparent layer on the organic silicon surface layer obtained in the step (1), and heating and preserving heat;
(3) Uniformly mixing all components of the organic silicon bonding layer, coating the organic silicon bonding layer on the organic silicon transparent layer obtained in the step (2), placing a substrate on the coating layer, and then heating and preserving heat;
(4) And stripping the release paper to obtain the organic silicon synthetic leather for electronic packaging.
13. The method for producing an organic silicon synthetic leather for electronic packaging according to claim 12, wherein the heating and heat preservation in the steps (1) - (3) are performed in a tunnel oven heated by hot air.
14. The method for preparing the organic silicon synthetic leather for electronic packaging according to claim 12, wherein the heating and heat preservation temperature in the steps (1) - (3) is 100-150 ℃ and the time is 1-10 min.
15. Use of the organic silicon synthetic leather for electronic packaging according to any one of claims 1-11 in electronic product packaging.
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| CN103821008A (en) * | 2014-03-12 | 2014-05-28 | 李江群 | Organosilicon synthetic leather adopting three-layer structure and preparation method thereof |
| CN110606966A (en) * | 2019-09-23 | 2019-12-24 | 宁波米家新材料有限公司 | Organic silicon synthetic leather based on EVA (ethylene-vinyl acetate copolymer) base layer and manufacturing method thereof |
| CN111172778A (en) * | 2020-01-17 | 2020-05-19 | 江西赛欧特科新材料有限公司 | Organic silicon synthetic leather and manufacturing method thereof |
| CN114058276A (en) * | 2021-12-02 | 2022-02-18 | 成都硅宝科技股份有限公司 | Solvent-free high-folding-resistance high-wear-resistance organic silicon leather and preparation method thereof |
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| CN110606966A (en) * | 2019-09-23 | 2019-12-24 | 宁波米家新材料有限公司 | Organic silicon synthetic leather based on EVA (ethylene-vinyl acetate copolymer) base layer and manufacturing method thereof |
| CN111172778A (en) * | 2020-01-17 | 2020-05-19 | 江西赛欧特科新材料有限公司 | Organic silicon synthetic leather and manufacturing method thereof |
| CN114058276A (en) * | 2021-12-02 | 2022-02-18 | 成都硅宝科技股份有限公司 | Solvent-free high-folding-resistance high-wear-resistance organic silicon leather and preparation method thereof |
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