CN111087971B - Pressure-sensitive adhesive for masking tape - Google Patents
Pressure-sensitive adhesive for masking tape Download PDFInfo
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- CN111087971B CN111087971B CN201911351300.3A CN201911351300A CN111087971B CN 111087971 B CN111087971 B CN 111087971B CN 201911351300 A CN201911351300 A CN 201911351300A CN 111087971 B CN111087971 B CN 111087971B
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- CN
- China
- Prior art keywords
- parts
- mixing
- pressure
- sensitive adhesive
- masking tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 69
- 230000000873 masking effect Effects 0.000 title claims abstract description 27
- 239000003822 epoxy resin Substances 0.000 claims abstract description 33
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 33
- 239000000126 substance Substances 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 229920002545 silicone oil Polymers 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 90
- 239000000463 material Substances 0.000 claims description 70
- 239000002131 composite material Substances 0.000 claims description 40
- 241000237509 Patinopecten sp. Species 0.000 claims description 38
- 235000020637 scallop Nutrition 0.000 claims description 38
- 238000003756 stirring Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 30
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 24
- 239000004365 Protease Substances 0.000 claims description 24
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims description 22
- 230000003712 anti-aging effect Effects 0.000 claims description 19
- 239000003999 initiator Substances 0.000 claims description 19
- 239000004014 plasticizer Substances 0.000 claims description 19
- 238000012545 processing Methods 0.000 claims description 19
- 108091005804 Peptidases Proteins 0.000 claims description 18
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 18
- 235000019419 proteases Nutrition 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 16
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 239000003607 modifier Substances 0.000 claims description 15
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 12
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 12
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 claims description 12
- 150000002148 esters Chemical class 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 12
- 239000001103 potassium chloride Substances 0.000 claims description 12
- 235000011164 potassium chloride Nutrition 0.000 claims description 12
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 12
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 claims description 7
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- 230000004224 protection Effects 0.000 claims description 7
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 claims description 6
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical compound CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 claims description 6
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 6
- 108090000790 Enzymes Proteins 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 6
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims description 6
- 108090000526 Papain Proteins 0.000 claims description 6
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims description 6
- 244000269722 Thea sinensis Species 0.000 claims description 6
- DOOTYTYQINUNNV-UHFFFAOYSA-N Triethyl citrate Chemical compound CCOC(=O)CC(O)(C(=O)OCC)CC(=O)OCC DOOTYTYQINUNNV-UHFFFAOYSA-N 0.000 claims description 6
- 102000004142 Trypsin Human genes 0.000 claims description 6
- 108090000631 Trypsin Proteins 0.000 claims description 6
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 6
- 229940088598 enzyme Drugs 0.000 claims description 6
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 6
- 229940055729 papain Drugs 0.000 claims description 6
- 235000019834 papain Nutrition 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 6
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 6
- 235000013824 polyphenols Nutrition 0.000 claims description 6
- 238000002390 rotary evaporation Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 6
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 6
- 235000012424 soybean oil Nutrition 0.000 claims description 6
- 239000003549 soybean oil Substances 0.000 claims description 6
- 239000004250 tert-Butylhydroquinone Substances 0.000 claims description 6
- 235000019281 tert-butylhydroquinone Nutrition 0.000 claims description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 6
- 239000001069 triethyl citrate Substances 0.000 claims description 6
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 claims description 6
- 235000013769 triethyl citrate Nutrition 0.000 claims description 6
- 239000005051 trimethylchlorosilane Substances 0.000 claims description 6
- 239000012588 trypsin Substances 0.000 claims description 6
- 230000000415 inactivating effect Effects 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000004108 freeze drying Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 17
- 230000001070 adhesive effect Effects 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 12
- 229920005610 lignin Polymers 0.000 abstract description 6
- 239000000084 colloidal system Substances 0.000 abstract description 5
- 108090000765 processed proteins & peptides Proteins 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 4
- 102000004169 proteins and genes Human genes 0.000 abstract description 4
- 108090000623 proteins and genes Proteins 0.000 abstract description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002313 adhesive film Substances 0.000 abstract description 3
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 238000005054 agglomeration Methods 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 230000005012 migration Effects 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract description 2
- 239000005543 nano-size silicon particle Substances 0.000 abstract description 2
- 230000000379 polymerizing effect Effects 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract 1
- 239000003292 glue Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000002174 Styrene-butadiene Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 5
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 239000011115 styrene butadiene Substances 0.000 description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 4
- 238000011049 filling Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 230000006750 UV protection Effects 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- -1 acrylic ester Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2489/00—Presence of protein
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a pressure-sensitive adhesive for a masking tape, and belongs to the technical field of tapes. According to the invention, the protein small peptide is used for chelating calcium ions, and the modification of epoxy resin is combined, so that the gelling stability is improved, the bonding effect is improved, the surface tension is further reduced by polymerizing a macromolecular monomer, the migration and dispersion of active bonding substances are facilitated, the stability of the formed colloid is improved, and the added substances with smooth and agglomeration-resistant properties, such as hydrogen-containing silicone oil, talcum powder and the like, can reduce the peeling strength of an adhesive film, and achieve the effects of easy peeling and residue avoidance. And a small amount of added nano silicon dioxide particles are mutually connected to form the pressure-sensitive adhesive with the nano micropore network structure framework. The added lignin can be dispersed in the adhesive, so that the adhesive strength of the colloid is increased, the colloid forming time is shortened, and the effect of stably providing a bonding effect is achieved. The invention solves the problems that the pressure-sensitive adhesive for the prior commonly used masking tape is easy to have poor adhesion, adhesive falling and reduced initial viscosity.
Description
Technical Field
The invention belongs to the technical field of adhesive tapes, and particularly relates to a pressure-sensitive adhesive for a masking tape.
Background
Pressure-sensitive adhesive is abbreviated. Is a type of adhesive that is sensitive to pressure. The preparation method is mainly used for preparing the pressure-sensitive adhesive tape. In general, the peeling force of a pressure-sensitive adhesive (peeling force exhibited after pressure-bonding an adhesive tape to an adherend surface) < cohesive force of the adhesive (force between pressure-sensitive adhesive molecules) < cohesive force of the adhesive (adhesion force between the adhesive and a base material). The pressure-sensitive adhesive can not be degummed and the like in the using process.
Pressure Sensitive Adhesives (PSAs) are a class of adhesives that adhere strongly to an adherend with the application of only slight pressure. Because the pressure-sensitive adhesive has certain initial adhesiveness and lasting adhesiveness, can be repeatedly used under the condition of no pollution, has no pollution to the adhered surface after being peeled off and the like, the pressure-sensitive adhesive is widely applied to various fields of electronic insulation, electronic element processing, color enlarging and printing, military virus detection products, automobile interior decoration, medical treatment and the like.
Pressure-sensitive adhesives can be classified into rubber type and resin type according to the main resin component. The rubber type can be divided into natural rubber and synthetic rubber; the resin type also includes mainly acrylic type, silicone type and polyurethane type. The rubber pressure-sensitive adhesive is prepared by adding other auxiliary components such as tackifying resin, plasticizer, filler, viscosity regulator, vulcanizing agent, anti-aging agent, solvent and the like in addition to the main component of rubber. Besides the main resin, the resin pressure-sensitive adhesive also needs to be added with auxiliary agents such as a defoaming agent, a leveling agent, a wetting agent and the like. In addition to the above classification methods, pressure-sensitive adhesives can be classified into water-based and solvent-based pressure-sensitive adhesives according to the difference of dispersion media; and can be divided into products such as packaging, protection, insulation, warning, marking, stationery and the like according to different purposes.
The masking tape is a high-tech paper for decoration and spraying (also called as color separation tape paper due to its special properties of use), and is widely used for indoor decoration, spray painting of household appliances and spraying of high-grade luxury cars. The masking tape is a roll-shaped adhesive tape which is made by using masking paper and an adhesive as main raw materials, coating the adhesive on the masking paper and coating an anti-sticking material on the other side of the masking paper, has clear and bright color separation effect boundary lines and arc art effect, brings a new technical revolution to the decoration and spraying industries, and enables the industry to develop a new machine.
The masking tape can be classified into various types according to the substrate, application and glue type, and generally, a common tape structure generally comprises a release layer, a substrate and a glue layer. At present, two approaches are mainly used for improving the UV resistance, namely two approaches of shielding reflection and absorbing UV light, the shielding reflection of ultraviolet rays can be realized by inorganic fillers such as zinc oxide, titanium dioxide and the like, and the absorption of ultraviolet rays can be realized by a UV absorbent. The common rubber-based pressure-sensitive adhesive has poor UV resistance, but good pressure-sensitive property, the prepared pressure-sensitive adhesive has good wettability, and saturated synthetic rubbers such as Ethylene Propylene Diene Monomer (EPDM), SEBS and the like have good UV resistance, but the prepared pressure-sensitive adhesive has poor pressure-sensitive property.
At present, the pressure-sensitive adhesive mainly uses solvent type acrylic ester as a main stream, and causes great pollution and harm to the environment and users. The water-based polyurethane has the outstanding advantages of oil resistance, impact resistance, wear resistance, low temperature resistance and the like, and becomes a research hotspot of the water-based pressure-sensitive adhesive, but the water-based pressure-sensitive adhesive has the defects of poor initial viscosity and water resistance and the like, so that the application of the water-based pressure-sensitive adhesive is limited. The acrylate adhesive has excellent water resistance and mechanical property, but the flexibility and the low-temperature property of the polyurethane are poor, and the combination of the two must be complementary.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the problems that the conventional pressure-sensitive adhesive for the textured paper adhesive tape is easy to have poor adhesion, adhesive falling and low initial viscosity, the pressure-sensitive adhesive for the textured paper adhesive tape is provided.
In order to solve the technical problems, the invention adopts the following technical scheme:
a pressure-sensitive adhesive for masking tape comprises the following components: 7-12 parts of styrene-butadiene latex, 2-5 parts of plasticizer, 1-4 parts of anti-aging agent, 30-50 parts of composite pressure-sensitive adhesive base material and 12-20 parts of composite auxiliary material.
The preparation method of the composite pressure-sensitive adhesive base material comprises the following steps:
(1) cleaning scallop, drying, crushing and sieving, collecting sieved particles according to a mass ratio of 1: 7-12, adding petroleum ether, mixing, keeping the temperature at 45-65 ℃, stirring, filtering, taking the filtrate, performing rotary evaporation at 60-80 ℃, and drying to obtain a scallop extract, wherein the scallop extract is obtained by mixing the components in a mass ratio of 10: 0.01-0.04: adding protease powder and water into 25-35, mixing, performing heat preservation enzymolysis at 35-42 ℃, inactivating enzymes, centrifuging, collecting supernate, freeze-drying to obtain a dried substance, and taking the dried substance according to a mass ratio of 1: 15: 0.2-0.5, adding water and a modifier, mixing and stirring, adjusting the pH, and performing vacuum-pumping concentration to obtain a scallop processing material;
(2) according to the mass parts, taking 30-50 parts of scallop processing material, 10-15 parts of modified epoxy resin, 3-6 parts of rosin ester, 1-3 parts of OP-10, 1-4 parts of sodium polyacrylate, 0.1-0.4 part of potassium chloride, 4-8 parts of propylene glycol methyl ether and 50-70 parts of water, mixing and stirring the scallop processing material, the modified epoxy resin, the rosin ester, the OP-10 and the water at 30-45 ℃, introducing nitrogen for protection, heating to 65-75 ℃, adding the sodium polyacrylate, the potassium chloride and the propylene glycol methyl ether, mixing and stirring, and evaporating under reduced pressure to obtain the composite pressure-sensitive adhesive base material.
The modifier in the step (1): 3-6 of: 1 mixing sodium hexametaphosphate and mercaptopropyltriethoxysilane to obtain the modifier.
The protease powder in the step (1): according to the weight ratio of 1: and 1-3, mixing papain powder and trypsin powder to obtain the protease powder.
The modified epoxy resin in the step (2): 6-9 parts by weight: 1: and 20, mixing the epoxy resin, polyvinyl alcohol and ethylene glycol dimethyl ether to obtain the modified epoxy resin.
The preparation of the composite auxiliary material comprises the following steps: under the nitrogen atmosphere, according to the mass ratio of 1: 8-13, adding hydrogen-containing silicone oil and methylbenzene, mixing and stirring to obtain a mixed solution, and taking the mixed solution according to a weight ratio of 20-30: 7: 2-5, adding isooctyl acrylate and vinyl n-butyl ether, mixing to obtain a mixture, heating to 70-85 ℃, adding an initiator accounting for 1-3% of the mass of the mixture, mixing and stirring, cooling, and distilling under reduced pressure to obtain a concentrated material, wherein 20-35 parts of the concentrated material, 2-5 parts of a filler, 1-4 parts of erucamide and 2-5 parts of trimethylchlorosilane are mixed and stirred according to the mass parts to obtain the composite auxiliary action material.
The initiator is as follows: 2-5 of: 1, mixing benzoyl peroxide and cyclohexanone peroxide to obtain the initiator.
The filler is as follows: 3-7 of: 0.1: 1 mixing talcum powder, nano-silica and montmorillonite to obtain the filler.
The plasticizer is as follows: according to the mass ratio of 1: and 3-7, mixing triethyl citrate and epoxy soybean oil to obtain the plasticizer.
The anti-aging agent comprises: according to the mass ratio of 1: and 4-8, mixing the tea polyphenol and the tert-butyl hydroquinone to obtain the anti-aging agent.
Compared with other methods, the method has the beneficial technical effects that:
(1) the invention uses organic solvent to extract protein from scallop and enzymolyze into small peptide, uses the small molecular structure to chelate partial calcium ion dissolved out from scallop to improve the stability of the pressure-sensitive adhesive, adds modifier to activate and phosphorylate the protein peptide, makes the hydroxyl group of phosphate radical interact with hydroxyl group and amino group of small peptide to generate hydrogen bond, improves the internal stability, dilutes the epoxy resin with organic solvent and mixes polyvinyl alcohol, improves the affinity wetting action, improves the penetration and interaction among components under the emulsification action of OP-10, and improves the stability of gelling;
(2) the invention mixes and copolymerizes monomer components of isooctyl acrylate and vinyl n-butyl ether, forms a long-chain polymer with anti-foaming performance under the action of an initiator, can reduce the surface tension of the colloid in the blending process,
the long-chain polymer is utilized to ensure that the active substance in the pressure-sensitive adhesive can migrate and disperse between the adhesive film and the surface of the base material, reduce the intermolecular force of the adhesive and the paper tape, ensure that the pressure-sensitive adhesive can be uniformly spread on the adhesive paper, avoid the problems of poor adhesion and adhesive falling caused by the non-uniform dispersion of viscous components, in addition, the added substances with smooth anti-agglomeration performance, such as hydrogen-containing silicone oil, talcum powder and the like, can reduce the peeling strength of the adhesive film, achieve the effect of easy peeling and residual avoidance, form a special dispersion system after the adhesive is cured, and mutually connect a small amount of added nano silicon dioxide particles to form the pressure-sensitive adhesive with a nano micropore net structure framework, in addition, the added lignin can also disperse therein to play a role in reinforcement, provide the function of improving the density of cross-linking points, and easily form a three-dimensional network structure, so that the adhesive strength of, the gelling time is shortened, the reticular structure formed by the composite auxiliary material can be adhered and wound with the composite pressure-sensitive adhesive base material, the spatial reticular structure is reinforced, the stability and toughness of the whole structure are improved, and therefore the effect of stably providing the bonding effect is achieved;
(3) according to the invention, the protein small peptide is chelated with calcium ions, and the modification of epoxy resin is combined, so that the gelling stability is improved, the bonding effect is improved, the surface tension is further reduced by polymerizing the macromonomer, the migration and dispersion of active bonding substances are facilitated, and the stability of the formed colloid is improved.
Detailed Description
Modified epoxy resin: 6-9 parts by weight: 1: and 20, mixing the epoxy resin, polyvinyl alcohol and ethylene glycol dimethyl ether to obtain the modified epoxy resin.
Modifying agent: 3-6 of: 1 mixing sodium hexametaphosphate and mercaptopropyltriethoxysilane to obtain the modifier.
Protease powder: according to the weight ratio of 1: and 1-3, mixing papain powder and trypsin powder to obtain the protease powder.
Initiator: 2-5 of: 1, mixing benzoyl peroxide and cyclohexanone peroxide to obtain the initiator.
Filling: 3-7 of: 0.1: 1 mixing talcum powder, nano-silica and montmorillonite to obtain the filler.
Plasticizer: according to the mass ratio of 1: and 3-7, mixing triethyl citrate and epoxy soybean oil to obtain the plasticizer.
Anti-aging agent: according to the mass ratio of 1: and 4-8, mixing the tea polyphenol and the tert-butyl hydroquinone to obtain the anti-aging agent.
The preparation method of the composite pressure-sensitive adhesive base material comprises the following steps:
(1) cleaning scallop, drying, crushing, sieving with a 60-mesh sieve, collecting sieved particles according to a mass ratio of 1: 7-12, adding petroleum ether, mixing, keeping the temperature at 45-65 ℃, stirring for 1-3 hours, filtering, taking the filtrate, performing rotary evaporation at 60-80 ℃ until the weight is constant, drying to obtain a scallop extract, taking the scallop extract according to the mass ratio of 10: 0.01-0.04: adding protease powder and water into 25-35, mixing, performing heat preservation and enzymolysis at 35-42 ℃ for 1-3 h, deactivating enzyme, transferring to a centrifugal machine, centrifuging for 12-25 min at 3000-5000 r/min, collecting supernatant, drying for 5-8 h in a-10 ℃ freeze dryer to obtain a dried substance, and taking the dried substance according to a mass ratio of 1: 15: adding 0.2-0.5 of water and a modifier, mixing and stirring, adjusting the pH to 7.6-8.2 by using 20% ammonia water by mass fraction, and vacuumizing and concentrating to constant weight to obtain a scallop processing material;
(2) according to the mass parts, taking 30-50 parts of scallop processing material, 10-15 parts of modified epoxy resin, 3-6 parts of rosin ester, 1-3 parts of OP-10, 1-4 parts of sodium polyacrylate, 0.1-0.4 part of potassium chloride, 4-8 parts of propylene glycol methyl ether and 50-70 parts of water, mixing the scallop processing material, the modified epoxy resin, the rosin ester, the OP-10 and the water in a reaction kettle at 30-45 ℃, stirring for 40-60 min at 500-800 r/min by magnetic force, introducing nitrogen for protection, heating to 65-75 ℃, adding sodium polyacrylate, potassium chloride and propylene glycol methyl ether, mixing for 35-60 min at 300-550 r/min by magnetic force, and decompressing and evaporating to 20-35% of the original volume to obtain the composite pressure-sensitive adhesive base material.
Preparing a composite auxiliary material: under the nitrogen atmosphere, according to the mass ratio of 1: 8-13, adding hydrogen-containing silicone oil and methylbenzene, mixing and stirring for 30-55 min to obtain a mixed solution, and taking the mixed solution according to a weight ratio of 20-30: 7: 2-5, adding isooctyl acrylate and vinyl n-butyl ether, mixing to obtain a mixture, heating to 70-85 ℃, adding an initiator accounting for 1-3% of the mass of the mixture, mixing and stirring for 1-3 hours, naturally cooling to room temperature, and carrying out reduced pressure distillation to obtain a concentrated material, wherein 20-35 parts of the concentrated material, 2-5 parts of a filler, 1-3 parts of lignin, 0.1-0.4 part of erucamide and 2-5 parts of trimethylchlorosilane are uniformly mixed and stirred according to parts by mass to obtain the composite auxiliary action material.
The pressure-sensitive adhesive for the masking tape comprises the following components in parts by weight: 7-12 parts of styrene-butadiene latex, 2-5 parts of plasticizer, 1-4 parts of anti-aging agent, 30-50 parts of composite pressure-sensitive adhesive base material and 12-20 parts of composite auxiliary material.
Example 1
Modified epoxy resin: according to the weight ratio of 6: 1: and 20, mixing the epoxy resin, polyvinyl alcohol and ethylene glycol dimethyl ether to obtain the modified epoxy resin.
Modifying agent: according to the weight ratio of 3: 1 mixing sodium hexametaphosphate and mercaptopropyltriethoxysilane to obtain the modifier.
Protease powder: according to the weight ratio of 1: 1 mixing papain powder and trypsin powder to obtain the protease powder.
Initiator: according to the weight ratio of 2: 1, mixing benzoyl peroxide and cyclohexanone peroxide to obtain the initiator.
Filling: according to the weight ratio of 3: 0.1: 1 mixing talcum powder, nano-silica and montmorillonite to obtain the filler.
Plasticizer: according to the mass ratio of 1: and 3, mixing triethyl citrate and epoxy soybean oil to obtain the plasticizer.
Anti-aging agent: according to the mass ratio of 1: and 4, mixing the tea polyphenol and the tert-butyl hydroquinone to obtain the anti-aging agent.
The preparation method of the composite pressure-sensitive adhesive base material comprises the following steps:
(1) cleaning scallop, drying, crushing, sieving with a 60-mesh sieve, collecting sieved particles according to a mass ratio of 1: 7 adding petroleum ether, mixing, keeping the temperature at 45 ℃, stirring for 1h, filtering, taking the filtrate, performing rotary evaporation at 60 ℃ until the weight is constant, drying to obtain a scallop extract, taking the scallop extract according to the mass ratio of 10: 0.01: 25 adding protease powder and water, mixing, performing enzymolysis at 35 deg.C for 1h, inactivating enzyme, transferring to a centrifuge, centrifuging at 3000r/min for 12min, collecting supernatant, drying in a-10 deg.C freeze dryer for 5h to obtain dried substance, and mixing the dried substance according to a mass ratio of 1: 15: 0.2, adding water and a modifier, mixing and stirring, adjusting the pH to 7.6 by using ammonia water with the mass fraction of 20%, and vacuumizing and concentrating to constant weight to obtain a scallop processing material;
(2) according to the mass parts, taking 30 parts of scallop processing material, 10 parts of modified epoxy resin, 3 parts of rosin ester, 1 part of OP-10, 1 part of sodium polyacrylate, 0.1 part of potassium chloride, 4 parts of propylene glycol monomethyl ether and 50 parts of water, mixing the scallop processing material, the modified epoxy resin, the rosin ester, the OP-10 and the water in a reaction kettle at the temperature of 30 ℃, magnetically stirring for 40min at the speed of 500r/min, introducing nitrogen for protection, heating to 65 ℃, adding the sodium polyacrylate, the potassium chloride and the propylene glycol monomethyl ether, magnetically stirring for 35min at the speed of 300r/min, and decompressing and evaporating to 20% of the original volume to obtain the composite pressure-sensitive adhesive base material.
Preparing a composite auxiliary material: under the nitrogen atmosphere, according to the mass ratio of 1: 8, adding hydrogen-containing silicone oil and toluene, mixing and stirring for 30min to obtain a mixed solution, and taking the mixed solution according to the weight ratio of 20: 7: 2 adding isooctyl acrylate and vinyl n-butyl ether, mixing to obtain a mixture, heating to 70 ℃, adding an initiator accounting for 1 percent of the mass of the mixture, mixing and stirring for 1 hour, naturally cooling to room temperature, and distilling under reduced pressure to obtain a concentrated material, wherein 20 parts of the concentrated material, 2 parts of filler, 1 part of lignin, 0.1 part of erucamide and 2 parts of trimethylchlorosilane are taken according to parts by mass, mixed and stirred uniformly to obtain the composite auxiliary action material.
The pressure-sensitive adhesive for the masking tape comprises the following components in parts by weight: 7 parts of styrene-butadiene latex, 2 parts of plasticizer, 1 part of anti-aging agent, 30 parts of composite pressure-sensitive adhesive base material and 12 parts of composite auxiliary material.
Example 2
Modified epoxy resin: according to the weight ratio of 7: 1: and 20, mixing the epoxy resin, polyvinyl alcohol and ethylene glycol dimethyl ether to obtain the modified epoxy resin.
Modifying agent: according to the weight ratio of 5: 1 mixing sodium hexametaphosphate and mercaptopropyltriethoxysilane to obtain the modifier.
Protease powder: according to the weight ratio of 1: 2 mixing papain powder and trypsin powder to obtain the protease powder.
Initiator: according to the weight ratio of 4: 1, mixing benzoyl peroxide and cyclohexanone peroxide to obtain the initiator.
Filling: according to the weight ratio of 5: 0.1: 1 mixing talcum powder, nano-silica and montmorillonite to obtain the filler.
Plasticizer: according to the mass ratio of 1: and 5, mixing triethyl citrate and epoxy soybean oil to obtain the plasticizer.
Anti-aging agent: according to the mass ratio of 1: 6 mixing tea polyphenols and tert-butyl hydroquinone to obtain antiaging agent.
The preparation method of the composite pressure-sensitive adhesive base material comprises the following steps:
(1) cleaning scallop, drying, crushing, sieving with a 60-mesh sieve, collecting sieved particles according to a mass ratio of 1: 10 adding petroleum ether, mixing, keeping the temperature at 55 ℃, stirring for 2h, filtering, taking the filtrate, performing rotary evaporation at 70 ℃ until the weight is constant, drying to obtain a scallop extract, taking the scallop extract according to the mass ratio of 10: 0.03: 30, adding protease powder and water, mixing, carrying out heat preservation and enzymolysis at 38 ℃ for 2h, inactivating enzyme, transferring to a centrifugal machine, centrifuging at 4000r/min for 18min, collecting supernatant, drying in a freeze dryer at-10 ℃ for 7h to obtain a dried substance, and taking the dried substance according to a mass ratio of 1: 15: 0.3, adding water and a modifier, mixing and stirring, adjusting the pH to 7.9 by using ammonia water with the mass fraction of 20%, and vacuumizing and concentrating to constant weight to obtain a scallop processing material;
(2) according to the mass parts, 40 parts of scallop processing material, 12 parts of modified epoxy resin, 5 parts of rosin ester, 2 parts of OP-10, 3 parts of sodium polyacrylate, 0.2 part of potassium chloride, 6 parts of propylene glycol methyl ether and 60 parts of water are taken, the scallop processing material, the modified epoxy resin, the rosin ester, the OP-10 and the water are taken at the first temperature of 37 ℃ and mixed in a reaction kettle, the mixture is magnetically stirred for 50min at 650r/min, nitrogen is introduced for protection, the temperature is raised to 70 ℃, the sodium polyacrylate, the potassium chloride and the propylene glycol methyl ether are added and mixed, the mixture is magnetically stirred for 50min at 400r/min, and the mixture is decompressed and evaporated to 27 percent of the original volume, so that the composite pressure-sensitive adhesive base.
Preparing a composite auxiliary material: under the nitrogen atmosphere, according to the mass ratio of 1: 10, adding hydrogen-containing silicone oil and toluene, mixing and stirring for 40min to obtain a mixed solution, and taking the mixed solution according to the weight ratio of 25: 7: and 4, adding isooctyl acrylate and vinyl n-butyl ether, mixing to obtain a mixture, heating to 80 ℃, adding an initiator accounting for 2% of the mass of the mixture, mixing and stirring for 2 hours, naturally cooling to room temperature, and carrying out reduced pressure distillation to obtain a concentrated material, wherein 27 parts of the concentrated material, 4 parts of filler, 2 parts of lignin, 0.3 part of erucamide and 3 parts of trimethylchlorosilane are taken according to parts by mass, mixed and stirred uniformly to obtain the composite auxiliary action material.
The pressure-sensitive adhesive for the masking tape comprises the following components in parts by weight: 10 parts of styrene-butadiene latex, 3 parts of plasticizer, 2 parts of anti-aging agent, 40 parts of composite pressure-sensitive adhesive base material and 16 parts of composite auxiliary material.
Example 3
Modified epoxy resin: according to the weight ratio of 9: 1: and 20, mixing the epoxy resin, polyvinyl alcohol and ethylene glycol dimethyl ether to obtain the modified epoxy resin.
Modifying agent: according to the weight ratio of 6: 1 mixing sodium hexametaphosphate and mercaptopropyltriethoxysilane to obtain the modifier.
Protease powder: according to the weight ratio of 1: and 3, mixing the papain powder and the trypsin powder to obtain the protease powder.
Initiator: according to the weight ratio of 5: 1, mixing benzoyl peroxide and cyclohexanone peroxide to obtain the initiator.
Filling: according to the weight ratio of 7: 0.1: 1 mixing talcum powder, nano-silica and montmorillonite to obtain the filler.
Plasticizer: according to the mass ratio of 1: and 7, mixing triethyl citrate and epoxy soybean oil to obtain the plasticizer.
Anti-aging agent: according to the mass ratio of 1: 8 mixing tea polyphenols and tert-butyl hydroquinone to obtain antiaging agent.
The preparation method of the composite pressure-sensitive adhesive base material comprises the following steps:
(1) cleaning scallop, drying, crushing, sieving with a 60-mesh sieve, collecting sieved particles according to a mass ratio of 1: 12 adding petroleum ether, mixing, keeping the temperature at 65 ℃, stirring for 3h, filtering, taking the filtrate, performing rotary evaporation at 80 ℃ to constant weight, drying to obtain a scallop extract, taking the scallop extract according to the mass ratio of 10: 0.04: 35 adding protease powder and water, mixing, performing enzymolysis at 42 deg.C for 3h, inactivating enzyme, transferring to a centrifuge, centrifuging at 5000r/min for 25min, collecting supernatant, drying in a-10 deg.C freeze dryer for 8h to obtain dried substance, and mixing the dried substance according to a mass ratio of 1: 15: 0.5, adding water and a modifier, mixing and stirring, adjusting the pH to 8.2 by using ammonia water with the mass fraction of 20%, and vacuumizing and concentrating to constant weight to obtain a scallop processing material;
(2) according to the mass parts, 50 parts of scallop processing material, 15 parts of modified epoxy resin, 6 parts of rosin ester, 3 parts of OP-10, 4 parts of sodium polyacrylate, 0.4 part of potassium chloride, 8 parts of propylene glycol methyl ether and 70 parts of water are taken, the scallop processing material, the modified epoxy resin, the rosin ester, the OP-10 and the water are taken at 45 ℃ and mixed in a reaction kettle, the mixture is magnetically stirred for 60min at 800r/min, nitrogen is introduced for protection, the temperature is raised to 75 ℃, the sodium polyacrylate, the potassium chloride and the propylene glycol methyl ether are added and mixed, the mixture is magnetically stirred for 60min at 550r/min, and the mixture is decompressed and evaporated to 35 percent of the original volume, so that the composite pressure-sensitive adhesive base material is obtained.
Preparing a composite auxiliary material: under the nitrogen atmosphere, according to the mass ratio of 1: 13, adding hydrogen-containing silicone oil and toluene, mixing and stirring for 55min to obtain a mixed solution, and taking the mixed solution according to the weight ratio of 30: 7: and 5, adding isooctyl acrylate and vinyl n-butyl ether, mixing to obtain a mixture, heating to 85 ℃, adding an initiator accounting for 3% of the mass of the mixture, mixing and stirring for 3 hours, naturally cooling to room temperature, and carrying out reduced pressure distillation to obtain a concentrated material, wherein according to the mass parts, 35 parts of the concentrated material, 5 parts of a filler, 3 parts of lignin, 0.4 part of erucamide and 5 parts of trimethylchlorosilane are mixed and stirred uniformly to obtain the composite auxiliary action material.
The pressure-sensitive adhesive for the masking tape comprises the following components in parts by weight: 12 parts of styrene-butadiene latex, 5 parts of plasticizer, 4 parts of anti-aging agent, 50 parts of composite pressure-sensitive adhesive base material and 20 parts of composite auxiliary material.
Comparative example 1: essentially the same procedure as in example 1 was followed except that the composite pressure sensitive adhesive base was absent.
Comparative example 2: the procedure was essentially the same as in example 1 except that the composite auxiliary ingredient was absent.
Comparative example 3: pressure sensitive adhesive for commercially available masking tape. (main components: acrylic acid, silicone, polyurethane, tackifying resin, fillers)
The pressure-sensitive adhesives for masking tapes obtained in examples and comparative examples were tested in accordance with GB/T7122-1996, and the test results are shown in Table 1:
table 1:
| test items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Adhesion N/25mm | 25.3 | 22.4 | 20.7 | 18.6 | 15.9 | 8.3 |
| Peeling force N/M | 450 | 450 | 400 | 300 | 300 | 250 |
| Initial tack/cm | 9.5 | 8.4 | 7.6 | 7.1 | 6.5 | 5.3 |
| Glue dropping situation | Does not fall off glue and is not easy to peel off | Does not fall off glue and is not easy to peel off | Does not fall off glue and is not easy to peel off | Does not fall off glue and is not easy to peel off | Easy to peel off | Easy to peel off |
In sum, the pressure-sensitive adhesive for the masking tape, which is disclosed by the invention, has high initial viscosity and is not easy to cause the phenomena of poor adhesion and glue dropping. Compared with the products sold on the market, the product has better effect and is worth popularizing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is to be construed in all aspects and as broadly as possible, and all changes, equivalents and modifications that fall within the true spirit and scope of the invention are therefore intended to be embraced therein.
Claims (8)
1. The pressure-sensitive adhesive for the masking tape comprises the following components in parts by weight: 7~12 parts of butylbenzene latex, 2~5 parts of plasticizer, 1~4 parts of anti-aging agent, its characterized in that still includes: 30-50 parts of a composite pressure-sensitive adhesive base material and 12-20 parts of a composite auxiliary material;
the preparation method of the composite pressure-sensitive adhesive base material comprises the following steps:
(1) cleaning scallop, drying, crushing and sieving, collecting sieved particles according to a mass ratio of 1: 7-12, adding petroleum ether, mixing, keeping the temperature at 45-65 ℃, stirring, filtering, taking the filtrate, performing rotary evaporation at 60-80 ℃, and drying to obtain a scallop extract, wherein the scallop extract is obtained by mixing the components in a mass ratio of 10: 0.01-0.04: adding protease powder and water into 25-35, mixing, performing heat preservation enzymolysis at 35-42 ℃, inactivating enzymes, centrifuging, collecting supernate, freeze-drying to obtain a dried substance, and taking the dried substance according to a mass ratio of 1: 15: 0.2-0.5, adding water and a modifier, mixing and stirring, adjusting the pH, and performing vacuum-pumping concentration to obtain a scallop processing material;
(2) according to the mass parts, taking 30-50 parts of scallop processing material, 10-15 parts of modified epoxy resin, 3-6 parts of rosin ester, 1-3 parts of OP-10, 1-4 parts of sodium polyacrylate, 0.1-0.4 part of potassium chloride, 4-8 parts of propylene glycol methyl ether and 50-70 parts of water, firstly taking the scallop processing material, the modified epoxy resin, the rosin ester, the OP-10 and the water at 30-45 ℃, mixing and stirring, introducing nitrogen for protection, heating to 65-75 ℃, adding the sodium polyacrylate, the potassium chloride and the propylene glycol methyl ether, mixing and stirring, and performing reduced pressure evaporation to obtain a composite pressure-sensitive adhesive base material;
the preparation of the composite auxiliary material comprises the following steps: under the nitrogen atmosphere, according to the mass ratio of 1: 8-13, adding hydrogen-containing silicone oil and methylbenzene, mixing and stirring to obtain a mixed solution, and taking the mixed solution according to a weight ratio of 20-30: 7: 2-5, adding isooctyl acrylate and vinyl n-butyl ether, mixing to obtain a mixture, heating to 70-85 ℃, adding an initiator accounting for 1-3% of the mass of the mixture, mixing and stirring, cooling, and distilling under reduced pressure to obtain a concentrated material, wherein 20-35 parts of the concentrated material, 2-5 parts of a filler, 1-4 parts of erucamide and 2-5 parts of trimethylchlorosilane are mixed and stirred according to the mass parts to obtain the composite auxiliary action material.
2. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein the modifier in the step (1): 3-6 of: 1 mixing sodium hexametaphosphate and mercaptopropyltriethoxysilane to obtain the modifier.
3. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein the protease powder in step (1): according to the weight ratio of 1: and 1-3, mixing papain powder and trypsin powder to obtain the protease powder.
4. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein the modified epoxy resin in the step (2): 6-9 parts by weight: 1: and 20, mixing the epoxy resin, polyvinyl alcohol and ethylene glycol dimethyl ether to obtain the modified epoxy resin.
5. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein the initiator: 2-5 of: 1, mixing benzoyl peroxide and cyclohexanone peroxide to obtain the initiator.
6. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein said filler: 3-7 of: 0.1: 1 mixing talcum powder, nano-silica and montmorillonite to obtain the filler.
7. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein the plasticizer: according to the mass ratio of 1: and 3-7, mixing triethyl citrate and epoxy soybean oil to obtain the plasticizer.
8. The pressure-sensitive adhesive for masking tape as claimed in claim 1, wherein said anti-aging agent: according to the mass ratio of 1: and 4-8, mixing the tea polyphenol and the tert-butyl hydroquinone to obtain the anti-aging agent.
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| CN103897627A (en) * | 2014-04-22 | 2014-07-02 | 苏州华周胶带有限公司 | Manufacturing process of pressure-sensitive masking tape |
| CN106752977A (en) * | 2016-11-10 | 2017-05-31 | 嘉善弘欣化工厂（普通合伙） | A kind of high viscosity can U.S. line paper self-adhesive tape and its preparation technology |
| CN109096947B (en) * | 2018-08-17 | 2019-12-17 | 深圳市昌元兴科技有限公司 | Pressure-sensitive adhesive |
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2019
- 2019-12-25 CN CN201911351300.3A patent/CN111087971B/en active Active
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