CN105086857A - Environment-friendly water-based rubber protection film and preparation method thereof - Google Patents
Environment-friendly water-based rubber protection film and preparation method thereof Download PDFInfo
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- CN105086857A CN105086857A CN201510559008.6A CN201510559008A CN105086857A CN 105086857 A CN105086857 A CN 105086857A CN 201510559008 A CN201510559008 A CN 201510559008A CN 105086857 A CN105086857 A CN 105086857A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229920001971 elastomer Polymers 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims description 20
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 53
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 50
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 25
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 19
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000000178 monomer Substances 0.000 claims description 72
- 239000000839 emulsion Substances 0.000 claims description 49
- 239000004160 Ammonium persulphate Substances 0.000 claims description 34
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 34
- 230000001681 protective effect Effects 0.000 claims description 33
- 239000007864 aqueous solution Substances 0.000 claims description 24
- 238000010792 warming Methods 0.000 claims description 24
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical group CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 16
- 230000002209 hydrophobic effect Effects 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 11
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 8
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 8
- 238000004090 dissolution Methods 0.000 claims description 8
- 238000004945 emulsification Methods 0.000 claims description 8
- 239000003999 initiator Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 238000012703 microemulsion polymerization Methods 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 8
- 239000004848 polyfunctional curative Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 8
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 abstract 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Polymerisation Methods In General (AREA)
- Graft Or Block Polymers (AREA)
- Laminated Bodies (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses an environment-friendly water-based rubber protection film which is prepared from the following components in parts by weight: 100 parts of natural latex, 6-10 parts of a macromolecular emulsifier, 5-20 parts of butyl acrylate (BA), 10-15 parts of ethylhexyl acrylate (EHA), 0-6 parts of methyl methacrylate (MMA), 0-2 parts of acrylic acid (AA), 0-2 parts of methacrylic acid (MAA) and 1-3 parts of ammonium persulfate. According to the invention, graft modification is carried out on natural latex by adopting the specific macromolecular emulsifier, so that bonding force of the natural latex to a base material is better and prime coating treatment is not required to be carried out on the film base material; meanwhile, in combination with excellent performance of a waterborne system, the rubber protection film is less in pollution and more environment-friendly.
Description
Technical field
The invention belongs to rubber chemistry technical field of modification, be specifically related to a kind of environment-friendly type aqueous rubber protective film and preparation method thereof.
Background technology
Metal and the sheet metal after applying, in follow-up processing and transportation, in order to prevent surface tear and pollution, all can paste layer protecting film on surface.Now conventional protective membrane is that PE applies acrylic glue or solvent-borne type rubbery system.Acrylic glue cost is low, but due to the chemical property of material itself, cause its viscosity unstable, bad adaptability, is not well positioned to meet protective membrane " good subsides are easily torn " requirement.Solvent-borne type rubbery system viscosity stabilized, but the bonding force of primary coat raising and base material film will be done in production process, and a large amount of organic solvents to be used in the course of processing, production environment is poor, and may bring environmental pollution.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of environment-friendly type aqueous rubber protective film and preparation method thereof, and preparation-obtained environment-friendly type aqueous rubber protective film is viscosity stabilized, and releasable can be better.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts;
Macromole emulsifying agent 6-10 part;
Butyl acrylate (BA) 5-20 part;
Isooctyl acrylate monomer (EHA) 10-15 part;
Methyl methacrylate (MMA) 0-6 part;
Vinylformic acid (AA) 0-2 part;
Methacrylic acid (MAA) 0-2 part;
Ammonium persulphate 1-3 part.
Described macromole emulsifying agent with butyl acrylate (BA) or vinylbenzene (St) for hydrophobic monomer, methacrylic acid (MAA) is water-soluble monomer, ammonium persulphate is initiator, and DNS-86 is reactive emulsifier, is prepared from by microemulsion polymerization method reaction.
With parts by weight, each amounts of components of described macromole emulsifying agent is: butyl acrylate (BA) or vinylbenzene (St) 50-85 part, methacrylic acid (MAA) 15-50 part, ammonium persulphate 0.5-1 part, DNS-860.05-0.2 part, water 250-350 part.
The preparation method of described environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate with 4-4.5 doubly to the water dissolution of its weight; Ammonium persulfate aqueous solution and the remaining water of getting 40-50% add reactor, after being warming up to 70-80 DEG C, adding the pre-emulsion of 5-10%, are slowly warming up to 82-85 DEG C; After reaction 20-25min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2-2.5h, at the temperature of 85-88 DEG C, be incubated 2-2.5h, is cooled to 55-60 DEG C of discharging;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 50-55% that adds water, after being warming up to 85-88 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.5-3h; Be added dropwise to complete rear insulation 2-2.5h, be cooled to 55-60 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 7-8, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 75-115 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 45-50 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
Compared with prior art, advantage of the present invention is: the present invention adopts distinctive macromole emulsifying agent to carry out graft modification to natural emulsion, makes the cohesive force of itself and base material better, without the need to carrying out primary coat process to base material film; Meanwhile, in conjunction with the premium properties of water-based system, pollute few, more friendly to environment.
Embodiment:
Below in conjunction with embodiment, the present invention is described in further detail, but these embodiments are not limitation of the invention.
Embodiment 1
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts, macromole emulsifying agent 10 parts, butyl acrylate (BA) 18 parts, Isooctyl acrylate monomer (EHA) 10 parts, 2 parts, vinylformic acid (AA), ammonium persulphate 1 part.
Wherein: macromole emulsifying agent with the butyl acrylate of 75 weight parts (BA) for hydrophobic monomer, the methacrylic acid (MAA) of 25 weight parts is water-soluble monomer, the ammonium persulphate of 0.5 weight part is initiator, the DNS-86 of 0.1 weight part is reactive emulsifier, be prepared from by microemulsion polymerization method reaction, water add-on is 300 weight parts.
The preparation method of this environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate 4 times of water dissolution to its weight; Ammonium persulfate aqueous solution and the remaining water of getting 40% add reactor, after being warming up to 70 DEG C, add the pre-emulsion of 5%, are slowly warming up to 82 DEG C; After reaction 20min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2h, at the temperature of 85 DEG C, be incubated 2h, is cooled to 55 DEG C of dischargings;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 50% that adds water, after being warming up to 85 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.5h; Be added dropwise to complete rear insulation 2h, be cooled to 55 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 7, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 75 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 50 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
Embodiment 2
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts, macromole emulsifying agent 10 parts, butyl acrylate (BA) 15 parts, Isooctyl acrylate monomer (EHA) 13 parts, 2 parts, vinylformic acid (AA), ammonium persulphate 1 part.
Wherein: macromole emulsifying agent with the butyl acrylate of 75 weight parts (BA) for hydrophobic monomer, the methacrylic acid (MAA) of 25 weight parts is water-soluble monomer, the ammonium persulphate of 0.5 weight part is initiator, the DNS-86 of 0.05 weight part is reactive emulsifier, be prepared from by microemulsion polymerization method reaction, water add-on is 300 weight parts.
The preparation method of this environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate 4 times of water dissolution to its weight; Ammonium persulfate aqueous solution and the remaining water of getting 40% add reactor, after being warming up to 73 DEG C, add the pre-emulsion of 6%, are slowly warming up to 83 DEG C; After reaction 20min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2h, at the temperature of 86 DEG C, be incubated 2h, is cooled to 55 DEG C of dischargings;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 50% that adds water, after being warming up to 86 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.5h; Be added dropwise to complete rear insulation 2h, be cooled to 60 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 7, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 85 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 45 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
Embodiment 3
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts, macromole emulsifying agent 9 parts, butyl acrylate (BA) 10 parts, Isooctyl acrylate monomer (EHA) 13 parts, methyl methacrylate (MMA) 5 parts, 2 parts, vinylformic acid (AA), ammonium persulphate 1 part.
Wherein: macromole emulsifying agent with the butyl acrylate of 75 weight parts (BA) for hydrophobic monomer, the methacrylic acid (MAA) of 25 weight parts is water-soluble monomer, the ammonium persulphate of 0.5 weight part is initiator, the DNS-86 of 0.2 weight part is reactive emulsifier, be prepared from by microemulsion polymerization method reaction, water add-on is 300 weight parts.
The preparation method of this environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate 4.2 times of water dissolution to its weight; Ammonium persulfate aqueous solution and the remaining water of getting 45% add reactor, after being warming up to 75 DEG C, add the pre-emulsion of 7%, are slowly warming up to 84 DEG C; After reaction 20min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2.5h, at the temperature of 88 DEG C, be incubated 2.5h, is cooled to 60 DEG C of dischargings;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 55% that adds water, after being warming up to 85 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.5h; Be added dropwise to complete rear insulation 2.5h, be cooled to 60 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 7.5, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 90 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 45 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
Embodiment 4
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts, macromole emulsifying agent 8 parts, butyl acrylate (BA) 10 parts, Isooctyl acrylate monomer (EHA) 13 parts, methyl methacrylate (MMA) 5 parts, methacrylic acid (MAA) 2 parts, ammonium persulphate 1 part.
Wherein: macromole emulsifying agent with the butyl acrylate of 80 weight parts (BA) for hydrophobic monomer, the methacrylic acid (MAA) of 20 weight parts is water-soluble monomer, the ammonium persulphate of 0.5 weight part is initiator, the DNS-86 of 0.1 weight part is reactive emulsifier, be prepared from by microemulsion polymerization method reaction, water add-on is 300 weight parts.
The preparation method of this environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate 4.5 times of water dissolution to its weight; Ammonium persulfate aqueous solution and the remaining water of getting 50% add reactor, after being warming up to 80 DEG C, add the pre-emulsion of 9%, are slowly warming up to 85 DEG C; After reaction 22min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2h, at the temperature of 88 DEG C, be incubated 2.5h, is cooled to 60 DEG C of dischargings;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 55% that adds water, after being warming up to 88 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 3h; Be added dropwise to complete rear insulation 2.5h, be cooled to 55 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 7.5, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 100 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 50 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
Embodiment 5
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts, macromole emulsifying agent 8 parts, butyl acrylate (BA) 10 parts, Isooctyl acrylate monomer (EHA) 13 parts, methyl methacrylate (MMA) 5 parts, methacrylic acid (MAA) 2 parts, ammonium persulphate 3 parts.
Wherein: macromole emulsifying agent with the vinylbenzene of 80 weight parts (St) for hydrophobic monomer, the methacrylic acid (MAA) of 20 weight parts is water-soluble monomer, the ammonium persulphate of 0.5 weight part is initiator, the DNS-86 of 0.1 weight part is reactive emulsifier, be prepared from by microemulsion polymerization method reaction, water add-on is 300 weight parts.
The preparation method of this environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate 4 times of water dissolution to its weight; Ammonium persulfate aqueous solution and the remaining water of getting 50% add reactor, after being warming up to 80 DEG C, add the pre-emulsion of 10%, are slowly warming up to 85 DEG C; After reaction 25min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2h, at the temperature of 88 DEG C, be incubated 2h, is cooled to 60 DEG C of dischargings;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 50% that adds water, after being warming up to 85 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.5h; Be added dropwise to complete rear insulation 2.5h, be cooled to 55 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 8, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 110 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 50 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
Embodiment 6
A kind of environment-friendly type aqueous rubber protective film, be made up of the component comprising following weight part:
Natural emulsion 100 parts, macromole emulsifying agent 6 parts, butyl acrylate (BA) 8 parts, Isooctyl acrylate monomer (EHA) 10 parts, methyl methacrylate (MMA) 4 parts, methacrylic acid (MAA) 1.5 parts, ammonium persulphate 1 part.
Wherein: macromole emulsifying agent with the vinylbenzene of 80 weight parts (St) for hydrophobic monomer, the methacrylic acid (MAA) of 20 weight parts is water-soluble monomer, the ammonium persulphate of 0.5 weight part is initiator, the DNS-86 of 0.2 weight part is reactive emulsifier, be prepared from by microemulsion polymerization method reaction, water add-on is 300 weight parts.
The preparation method of this environment-friendly type aqueous rubber protective film, comprises the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate 4.5 times of water dissolution to its weight; Ammonium persulfate aqueous solution and the remaining water of getting 40% add reactor, after being warming up to 70 DEG C, add the pre-emulsion of 5%, are slowly warming up to 85 DEG C; After reaction 22min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2h, at the temperature of 86 DEG C, be incubated 2.3h, is cooled to 58 DEG C of dischargings;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 50% that adds water, after being warming up to 86 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.8h; Be added dropwise to complete rear insulation 2h, be cooled to 58 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 8, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 115 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 50 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
The aqueous rubber protective membrane for preparing of each embodiment above, as shown in the table in the test result of grafting stability, stripping strength, situation of coming unstuck and viscous force change:
Claims (4)
1. an environment-friendly type aqueous rubber protective film, is characterized in that, is made up of the component comprising following weight part:
Natural emulsion 100 parts;
Macromole emulsifying agent 6-10 part;
Butyl acrylate (BA) 5-20 part;
Isooctyl acrylate monomer (EHA) 10-15 part;
Methyl methacrylate (MMA) 0-6 part;
Vinylformic acid (AA) 0-2 part;
Methacrylic acid (MAA) 0-2 part;
Ammonium persulphate 1-3 part.
2. the environment-friendly type aqueous rubber protective film of one according to claim 1; it is characterized in that; described macromole emulsifying agent with butyl acrylate (BA) or vinylbenzene (St) for hydrophobic monomer; methacrylic acid (MAA) is water-soluble monomer; ammonium persulphate is initiator; DNS-86 is reactive emulsifier, is prepared from by microemulsion polymerization method reaction.
3. the environment-friendly type aqueous rubber protective film of one according to claim 2; it is characterized in that; with parts by weight; each amounts of components of described macromole emulsifying agent is: butyl acrylate (BA) or vinylbenzene (St) 50-85 part; methacrylic acid (MAA) 15-50 part; ammonium persulphate 0.5-1 part, DNS-860.05-0.2 part, water 250-350 part.
4. a preparation method for environment-friendly type aqueous rubber protective film according to any one of claim 1 to 3, is characterized in that, comprise the following steps:
(1) preparation of macromole emulsifying agent: the hydrophobic monomer during macromole emulsifying agent is filled a prescription and water-soluble monomer mixing, it is for subsequent use that the water adding DNS-86 and monomer total amount 50% carries out pre-emulsification to monomer; Ammonium persulphate with 4-4.5 doubly to the water dissolution of its weight; Ammonium persulfate aqueous solution and the remaining water of getting 40-50% add reactor, after being warming up to 70-80 DEG C, adding the pre-emulsion of 5-10%, are slowly warming up to 82-85 DEG C; After reaction 20-25min, drip remaining pre-emulsion and ammonium persulfate aqueous solution, time for adding controls at 2-2.5h, at the temperature of 85-88 DEG C, be incubated 2-2.5h, is cooled to 55-60 DEG C of discharging;
(2) grafting of natural emulsion: the butyl acrylate (BA) in being filled a prescription by protective membrane, Isooctyl acrylate monomer (EHA), methyl methacrylate (MMA), vinylformic acid (AA), methacrylic acid (MAA) five kinds of monomers are pre-mixed; The water of ammonium persulphate with premix monomer equivalent dilutes; The macromole emulsifying agent that natural emulsion and step (1) obtain is pressed formula ratio mixing, and drop into reactor after the adjustment solid content to 50-55% that adds water, after being warming up to 85-88 DEG C, drip premix monomer and ammonium persulfate aqueous solution, time for adding controls at 2.5-3h; Be added dropwise to complete rear insulation 2-2.5h, be cooled to 55-60 DEG C and filter discharging;
(3) be coated with: with ammoniacal liquor, the pH value of the natural emulsion after grafting is adjusted to 7-8, add 0.8% aziridine hardener, be coated on base material; In the baking oven of 75-115 DEG C, below coating layer water content to 1.5% is baked to, rolling after being coated with;
(4) pack: the finished product after rolling is placed in the curing chamber of 45-50 DEG C, and more than slaking 24h is cooled to room temperature, cuts packaging.
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| CN106520037A (en) * | 2016-11-14 | 2017-03-22 | 广东金榜膜业科技有限公司 | Aqueous pressure-sensitive adhesive emulsion, and protection film using aqueous pressure-sensitive adhesive emulsion |
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| CN111117533A (en) * | 2019-12-27 | 2020-05-08 | 无锡达美新材料有限公司 | Emulsion type rubber pressure-sensitive adhesive and preparation method thereof |
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| CN113637425A (en) * | 2020-04-27 | 2021-11-12 | 炎洲股份有限公司 | Water-based acrylic pressure-sensitive adhesive composition coated on polyvinyl chloride pressure-sensitive adhesive tape |
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