CN103910826A - Acrylate copolymer rubber viscoelastic body and its preparation method - Google Patents
Acrylate copolymer rubber viscoelastic body and its preparation method Download PDFInfo
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- CN103910826A CN103910826A CN201310004849.1A CN201310004849A CN103910826A CN 103910826 A CN103910826 A CN 103910826A CN 201310004849 A CN201310004849 A CN 201310004849A CN 103910826 A CN103910826 A CN 103910826A
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Abstract
The invention relates to an acrylate copolymer rubber viscoelastic body and its preparation method. The acrylate copolymer rubber viscoelastic body is synthesized through a semi-continuous emulsion polymerization method with an acrylate main monomer and a crosslinking monomer as copolymerization monomers and a reactive emulsified monomer as a dispersing agent. The preparation method comprises the following steps: adding an initiator and deionized water to a catalyst tank, mixing for dissolving, uniformly mixing the main monomer and the crosslinking monomer in a premixing tank, adding the obtained uniformly-mixed monomer mixture phase, the dispersing agent and deionized water into a reactor, uniformly mixing at room temperature under the protection of nitrogen, adding an initiator solution to the reactor in a dropwise manner under the protection of nitrogen, initiating a polymerization reaction at 70-90DEG C, and carrying out the polymerization reaction at 70-90DEG C for 2-4h, adding a solution C to adjust the pH value to 7, and cooling the obtained system to 50DEG C. The acrylate copolymer rubber viscoelastic body has strong adhesive force and cohesive force, and a good high temperature resistance, has a better ageing resistance than modified natural rubber, can be used in a large temperature range, is viscous at -20-80DEG C, and has a water resistance.
Description
Technical field:
The invention belongs to the synthetic field of rubber viscoelastic body, be specifically related to a kind of acrylic ester copolymer class rubber viscoelastic body and preparation method thereof.
Background technology
In human social development process, find the earliest and the macromolecule organic that utilizes except starch, be exactly natural resin as rosin and rubber, after mixed melting modification, can be made into suitable viscoelastic body, be applied to all respects of national economy life.White glue cloth (making with cotton coating rubber modification viscoelastic body) and black electrical adhesive tape etc. from dog skin plaster the earliest to modern age, along with the development of petrochemical industry, unsaturated olefin is used to building-up reactions, develops the purposes that miscellaneous product has replaced part natural resin.Petroleum cracking separable go out ethene and propylene, become the superpolymer such as polyethylene and polypropylene through High Temperature High Pressure catalyzed polymerization.And propylene can be made into vinylformic acid through addition and redox, can be used for producing polyacrylic acid superabsorbent, be applied to the product such as sanitary towel and paper nappy, and industrial be for the production of ester class more, for example it carries out condensation reaction with propyl carbinol and can produce n-butyl acrylate, can produce ethyl propenoate etc. with ethanol condensed reaction.Series of acrylate product, can be in order to synthetic class rubber viscoelastic body to replace the part purposes of rubber, and the viscoelastic body synthetic with acrylate has wider temperature applicable range compared with modified rubber thing, and weather resistance is better.
Summary of the invention
According to above situation, the object of the present invention is to provide a kind of acrylic ester copolymer class rubber viscoelastic body and preparation method thereof, be mainly used in commecial label, glazing film, packing sealing tape product, double-faced adhesive tape, liquid crystal display endothecium structure bonding to increase the industries such as optical property.
The technical solution used in the present invention is as follows for achieving the above object:
A kind of acrylic ester copolymer class rubber viscoelastic body, is characterized in that: the component materials by following weight part is polymerized:
Described main monomer is selected from the mixture of the one or both in n-butyl acrylate, Isooctyl acrylate monomer: described cross-linking monomer is selected from one or more in vinylformic acid, methyl methacrylate, acrylamide; Described dispersion agent is response type emulsified monomer, is selected from one or both of vinyl alkyl sodium sulfonate, allyloxy fatty alcohol oxygen Vinyl Ether vitriol; Described initiator is selected from one or both in ammonium persulphate, Potassium Persulphate; Described pH buffer reagent is selected from one or both in sodium bicarbonate, bicarbonate of ammonia.
The preparation method of described acrylic ester copolymer class rubber viscoelastic body, it is characterized in that: take acrylate main monomer, cross-linking monomer as comonomer, take response type emulsified monomer as dispersion agent, with the method acrylic ester synthesizing Copolymer rubber viscoelastic body of semi-continuous emulsion polymerizing, concrete steps are as follows:
(a) initiator is joined in the catalyst tank that deionized water is housed, stir to such an extent that concentration is 10% initiator lysate A;
(b) main monomer, cross-linking monomer are mixed at premix groove, obtain polymerization single polymerization monomer mixed phase B;
(c) pH buffer reagent is joined in the neutralizing agent groove that deionized water is housed, stir, making concentration is 20%pH buffer agent solution C;
(d) in reactor, add the monomer mixed phase B, dispersion agent, the deionized water that mix, under normal temperature, nitrogen protection, mix, obtain mixing solutions D;
(e) by lysate A under nitrogen protection, be added dropwise in reactor, at 70-90 ℃ of initiated polymerization, reaction process maintains polymerization temperature within the scope of 70-90 ℃, reaction 2-4 hour, after reaction, obtain acrylic ester copolymer class rubber viscoelastic body;
(f) add solution C to regulate pH value to 7, in the time that system is cooled to below 50 ℃, get final product discharging.
The invention has the advantages that: clinging power and the force of cohesion of acrylic ester copolymer class rubber viscoelastic body are strong, resistance to elevated temperatures is good, more ageing-resistant compared with modified natural rubber, and is applicable to larger temperature range, all there is viscosity at-20 ℃～80 ℃, and there is water resistance.
Embodiment
Embodiment 1, in weight part, is made up of following material: n-butyl acrylate 40, vinylformic acid 10, acrylamide 10, vinyl alkyl sodium sulfonate 2, ammonium persulphate 0.5, sodium bicarbonate 0.5, deionized water 120
First ammonium persulphate and deionized water are joined to catalyst tank stirring and dissolving; Then n-butyl acrylate, vinylformic acid, acrylamide are mixed in premix groove; pre-mixed monomer mixed phase, vinyl alkyl sodium sulfonate, deionized water transferred in reactor successively; under normal temperature, nitrogen protection, mix; again the catalyst solution having dissolved is added dropwise in reactor under nitrogen protection; at 80 ℃ of initiated polymerizations; reaction process maintains polymerization temperature within the scope of 80 ℃; react and begin to cool down after 2 hours; add neutralizing agent to regulate pH value to 7; in the time that system is cooled to below 50 ℃, get final product discharging.
Embodiment 2, in weight part, is made up of following material: n-butyl acrylate 40, Isooctyl acrylate monomer 20, vinylformic acid 10, methyl methacrylate 10, acrylamide 10, allyloxy fatty alcohol oxygen Vinyl Ether vitriol 6, Potassium Persulphate 1.5, bicarbonate of ammonia 1, deionized water 160
First Potassium Persulphate and deionized water are joined to catalyst tank stirring and dissolving, then by n-butyl acrylate, Isooctyl acrylate monomer, vinylformic acid, methyl methacrylate, acrylamide mixes in premix groove, by pre-mixed monomer mixed phase, allyloxy fatty alcohol oxygen Vinyl Ether vitriol, deionized water is transferred in reactor successively, at normal temperature, under nitrogen protection, mix, again the catalyst solution having dissolved is added dropwise in reactor under nitrogen protection, at 70 ℃ of initiated polymerizations, reaction process maintains polymerization temperature within the scope of 80 ℃, react and begin to cool down after 3 hours, add neutralizing agent to regulate pH value to 7, in the time that system is cooled to below 50 ℃, get final product discharging.
Embodiment 3 is in weight part, formed by following material: n-butyl acrylate 50, Isooctyl acrylate monomer 40, vinylformic acid 30, methyl methacrylate 10, acrylamide 10, vinyl alkyl sodium sulfonate 10, allyloxy fatty alcohol oxygen Vinyl Ether vitriol 10, ammonium persulphate 2, bicarbonate of ammonia 0.5, sodium bicarbonate 0.5, deionized water 200
First ammonium persulphate and deionized water are joined to catalyst tank stirring and dissolving, then by n-butyl acrylate, Isooctyl acrylate monomer, vinylformic acid, methyl methacrylate, acrylamide mixes in premix groove, by pre-mixed monomer mixed phase, vinyl alkyl sodium sulfonate, allyloxy fatty alcohol oxygen Vinyl Ether vitriol, deionized water is transferred in reactor successively, at normal temperature, under nitrogen protection, mix, again the catalyst solution having dissolved is added dropwise in reactor under nitrogen protection, at 80 ℃ of initiated polymerizations, reaction process maintains polymerization temperature within the scope of 90 ℃, react and begin to cool down after 4 hours, add neutralizing agent to regulate pH value to 7, in the time that system is cooled to below 50 ℃, get final product discharging.
Embodiment 4, in weight part, is made up of following material: Isooctyl acrylate monomer 40, allyloxy fatty alcohol oxygen Vinyl Ether vitriol 2, Potassium Persulphate 0.5, bicarbonate of ammonia 0.5, deionized water 100
First Potassium Persulphate and deionized water are joined to catalyst tank stirring and dissolving; Then Isooctyl acrylate monomer, allyloxy fatty alcohol oxygen Vinyl Ether vitriol, deionized water are transferred in reactor successively; under normal temperature, nitrogen protection, mix; again the catalyst solution having dissolved is added dropwise in reactor under nitrogen protection; at 90 ℃ of initiated polymerizations; reaction process maintains polymerization temperature within the scope of 70 ℃, reacts and begins to cool down after 2 hours, adds neutralizing agent to regulate pH value to 7; in the time that system is cooled to below 50 ℃, get final product discharging.
Embodiment 5, in weight part, is made up of following material: n-butyl acrylate 35, Isooctyl acrylate monomer 35, vinylformic acid 20, methyl methacrylate 10, vinyl alkyl sodium sulfonate 10, Potassium Persulphate 1, ammonium persulphate 1, bicarbonate of ammonia 1, deionized water 150.
First Potassium Persulphate, ammonium persulphate and deionized water are joined to catalyst tank stirring and dissolving, then by n-butyl acrylate, Isooctyl acrylate monomer, vinylformic acid, methyl methacrylate mixes in premix groove, by pre-mixed monomer mixed phase, allyloxy fatty alcohol oxygen Vinyl Ether vitriol, deionized water is transferred in reactor successively, at normal temperature, under nitrogen protection, mix, again the catalyst solution having dissolved is added dropwise in reactor under nitrogen protection, at 80 ℃ of initiated polymerizations, reaction process maintains polymerization temperature within the scope of 80 ℃, react and begin to cool down after 3.5 hours, add neutralizing agent to regulate pH value to 7, in the time that system is cooled to below 50 ℃, get final product discharging.
Get the transparent polyester film of mist degree lower than 0.2 25 micron thickness, above embodiment sample blade coating 50 micron thickness (product coatings of approximately 25 micron thickness after drying) carried out to following test:
1. survey transmittance, after subduction transparent polyester film (former film) transmittance interfering factors, above embodiment viscoelastic body 25 micron coating transmittances approximately 97%.
2. cut respectively 24 millimeters of width of product rectangular (about 30cm), (surface is through oil removing to fit in clean stainless steel plate surface, clean and dry with acetone, surface of steel plate smooth finish is 50 nanometers) with the heavy rubber wheel pressing of 2kg (roll extrusion is once), then on tension testing machine, product is peeled off to (peeling off with 180 degree directions), shown that pulling force all can reach 0.6Kgf.
3. the product that is affixed on stainless steel plate is soaked in 80 ℃ of water, after 24 hours, taking-up is drawn dry top layer water droplet and is cooled to room temperature survey 180 degree peeling forces, and pulling force still can maintain 0.6Kgf, and heatproof moisture resistance properties is good.
Claims (2)
1. an acrylic ester copolymer class rubber viscoelastic body, is characterized in that: the component materials by following weight part is polymerized:
Described main monomer is selected from the mixture of the one or both in n-butyl acrylate, Isooctyl acrylate monomer; Described cross-linking monomer is selected from one or more in vinylformic acid, methyl methacrylate, acrylamide; Described dispersion agent is response type emulsified monomer, is selected from one or both of vinyl alkyl sodium sulfonate, allyloxy fatty alcohol oxygen Vinyl Ether vitriol; Described initiator is selected from one or both in ammonium persulphate, Potassium Persulphate; Described pH buffer reagent is selected from one or both in sodium bicarbonate, bicarbonate of ammonia.
2. the preparation method of acrylic ester copolymer class rubber viscoelastic body according to claim 1, it is characterized in that: take acrylate main monomer, cross-linking monomer as comonomer, take response type emulsified monomer as dispersion agent, with the method acrylic ester synthesizing Copolymer rubber viscoelastic body of semi-continuous emulsion polymerizing, concrete steps are as follows:
(a) initiator is joined in the catalyst tank that deionized water is housed, stir to such an extent that concentration is 10% initiator lysate A;
(b) main monomer, cross-linking monomer are mixed at premix groove, obtain polymerization single polymerization monomer mixed phase B;
(c) pH buffer reagent is joined in the neutralizing agent groove that deionized water is housed, stir, making concentration is 20%pH buffer agent solution C;
(d) in reactor, add the monomer mixed phase B, dispersion agent, the deionized water that mix, under normal temperature, nitrogen protection, mix, obtain mixing solutions D;
(e) by lysate A under nitrogen protection, be added dropwise in reactor, at 70-90 ℃ of initiated polymerization, reaction process maintains polymerization temperature within the scope of 70-90 ℃, reaction 2-4 hour, after reaction, obtain acrylic ester copolymer class rubber viscoelastic body;
(f) add solution C to regulate pH value to 7, in the time that system is cooled to below 50 ℃, get final product discharging.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022202406A1 (en) * | 2021-03-23 | 2022-09-29 | 日本ゼオン株式会社 | Acrylic rubber, rubber composition and rubber crosslinked product |
Citations (3)
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|---|---|---|---|---|
| CN1995258A (en) * | 2006-11-17 | 2007-07-11 | 广州市化学工业研究所 | Aqueous adhesive for shoes and its production method |
| CN101434819A (en) * | 2008-12-10 | 2009-05-20 | 广东恒大新材料科技有限公司 | Aqueous adhesive for binding rubber and metal and preparation thereof |
| CN102838705A (en) * | 2012-06-29 | 2012-12-26 | 任会平 | Preparation method of acrylate type emulsion for improving monomer conversion rate |
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2013
- 2013-01-04 CN CN201310004849.1A patent/CN103910826A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995258A (en) * | 2006-11-17 | 2007-07-11 | 广州市化学工业研究所 | Aqueous adhesive for shoes and its production method |
| CN101434819A (en) * | 2008-12-10 | 2009-05-20 | 广东恒大新材料科技有限公司 | Aqueous adhesive for binding rubber and metal and preparation thereof |
| CN102838705A (en) * | 2012-06-29 | 2012-12-26 | 任会平 | Preparation method of acrylate type emulsion for improving monomer conversion rate |
Non-Patent Citations (1)
| Title |
|---|
| 黄宏志等: ""可聚合乳化剂对丙烯酸乳液性能的影响"", 《涂料工业》, vol. 36, no. 12, 31 December 2006 (2006-12-31), pages 28 - 30 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2022202406A1 (en) * | 2021-03-23 | 2022-09-29 | 日本ゼオン株式会社 | Acrylic rubber, rubber composition and rubber crosslinked product |
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Application publication date: 20140709 |