CN102295725A - Method for preparing soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin - Google Patents
Method for preparing soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin Download PDFInfo
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- CN102295725A CN102295725A CN2011101359249A CN201110135924A CN102295725A CN 102295725 A CN102295725 A CN 102295725A CN 2011101359249 A CN2011101359249 A CN 2011101359249A CN 201110135924 A CN201110135924 A CN 201110135924A CN 102295725 A CN102295725 A CN 102295725A
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- vinyl acetate
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Abstract
The invention relates to a method for preparing a soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin, specifically a water suspending method for preparing the soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin, and more specifically a water suspending method for preparing a car and wood ware surface paint. The soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin is prepared from raw materials of vinyl chloride, vinyl acetate, hydroxypropyl acrylate a suspending agent, a chain regulator, an initiator, deionized water, and the like. The resin is prepared through steps of copolymerizing, dehydrating, blow-drying, sieving, and the like. With the soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin prepared with the method, production efficiency can be improved, production cost can be reduced, and pollution to the atmosphere can be avoided.
Description
Technical field
The present invention relates to a kind of production process of resin, specifically, is the method that adopts water suspension method production soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.More specifically saying, is to adopt water suspension method to produce the method for car, woodenware topcoating.
Background technology
At present, the coating (i.e. paint) that is used in car, woodenware surface all is the vinyl chloride-vinyl acetate-Propylene glycol monoacrylate copolymer resins that adopts solvent method to make.This vinyl chloride-vinyl acetate-Propylene glycol monoacrylate copolymer resins is that raw materials such as vinylchlorid, vinyl acetate between to for plastic, Propylene glycol monoacrylate, solvent, initiator are dropped in the reactor, heats when stirring, and carries out copolyreaction.Reaction finishes, and adds amount of methanol again, and carries out high-speed stirring, makes copolymer resins become solid particulate by liquid crystalization.Afterwards, through press filtration, drying, wherein the filtrate that Guos is reclaimed through rectifying.Raffinate after the rectifying adopts incinerating method to handle.Though adopt solvent method can obtain vinyl chloride-vinyl acetate-Propylene glycol monoacrylate copolymer resins, owing to contain solvent in its raw material, filtrate needs rectifying to reclaim, and the recovery technical process is longer, and production efficiency is low.Because recovery needs recovery system, and facility investment is many, production cost is higher again.On the other hand, because the raffinate after the rectifying need carry out burning disposal, can pollute atmosphere.
Summary of the invention
The problem to be solved in the present invention provides a kind of method for preparing soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.Adopt this method to prepare soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins, not only can enhance productivity, reduce production costs, and can avoid atmosphere is polluted.
For addressing the above problem, take following technical scheme:
The method characteristics that prepare soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins of the present invention are to may further comprise the steps successively:
(1) choose the raw material of following parts by weight:
60～75 parts in vinylchlorid; 5～10 parts of vinyl acetate between to for plastics; 15～30 parts of Propylene glycol monoacrylates; 3～5 parts of suspension agents; 30～40 parts of chain regulators; 0.3～0.5 part of initiator; 150～200 parts of deionized waters.Wherein, suspension agent is that vinyl pyrrolidone and methylcellulose gum connect branched copolymer, and chain regulator is any one in methyl alcohol, ethanol, propyl alcohol and the butanols, and initiator is a Diisopropyl azodicarboxylate;
(2) above-mentioned vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator, deionized water and half vinylchlorid are dropped in the reactor, when stirring, heat; After reducing to 0.2Mpa when heating to 70～75 ℃, reaction pressure, in 7～10 hours, slowly add half remaining vinylchlorid, and continue to stir copolyreaction 13～15 hours;
(3) dewater;
(4) with 115～125 ℃ hot blast drying;
(5) with 40 purpose sieve, obtain soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.
Adopt such scheme, have the following advantages:
By such scheme as can be seen, because the present invention is with raw materials such as vinylchlorid, vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator and deionized waters, make through steps such as stirring, heat, react, dewater, dry up and sieve, need not any chemical solvents, avoided the recovery of solvent, thereby shortened technical process, improved production efficiency.Because technical process is short, the equipment that needs is few, can reduce facility investment, reduce production costs again.On the other hand,, do not need rectifying to reclaim, avoided burning the pollution that raffinate brings atmosphere owing to do not contain chemical solvents in the raw material.
Embodiment
The present invention will be further described below in conjunction with embodiment:
Embodiment one
Choose the vinylchlorid of 60 weight parts, vinyl acetate between to for plastic, 30 parts by weight of acrylic hydroxypropyl acrylates, the suspension agent of 3 weight parts, the chain regulator of 40 weight parts, the initiator of 0.5 weight part and 200 parts the deionized water of 10 weight parts earlier, stand-by.Wherein, suspension agent is that vinyl pyrrolidone and methylcellulose gum connect branched copolymer, and chain regulator is a methyl alcohol, and initiator is a Diisopropyl azodicarboxylate.
Vinylchlorid with above-mentioned vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator, deionized water and half weight drops in the reactor again, heats when stirring.After reducing to 0.2Mpa when heating to 70 ℃, reaction pressure, in 10 hours, slowly add the vinylchlorid of half remaining weight, and continue to stir copolyreaction 15 hours.
Afterwards, dewater, obtain the work in-process resin of moisture 20 weight % with whizzer.The water polymerizable of deviating from recycles.
Again, the work in-process resin is dried up with 115 ℃ hot blasts.
At last, with 40 purpose sieve, obtain soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.
Embodiment two
Choose the vinylchlorid of 70 weight parts, vinyl acetate between to for plastic, 25 parts by weight of acrylic hydroxypropyl acrylates, the suspension agent of 4 weight parts, the chain regulator of 35 weight parts, the initiator of 0.4 weight part and 180 parts the deionized water of 8 weight parts earlier, stand-by.Wherein, suspension agent is that vinyl pyrrolidone and methylcellulose gum connect branched copolymer, and chain regulator is an ethanol, and initiator is a Diisopropyl azodicarboxylate.
Vinylchlorid with above-mentioned vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator, deionized water and half weight drops in the reactor again, heats when stirring.After reducing to 0.2Mpa when heating to 73 ℃, reaction pressure, in 8 hours, slowly add the vinylchlorid of half remaining weight, and continue to stir copolyreaction 14 hours.
Afterwards, dewater, obtain the work in-process resin of moisture 20 weight % with whizzer.The water polymerizable of deviating from recycles.
Again, the work in-process resin is dried up with 120 ℃ hot blasts.
At last, with 40 purpose sieve, obtain soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.
Embodiment three
Choose the vinylchlorid of 75 weight parts, vinyl acetate between to for plastic, 15 parts by weight of acrylic hydroxypropyl acrylates, the suspension agent of 5 weight parts, the chain regulator of 30 weight parts, the initiator of 0.3 weight part and 150 parts the deionized water of 5 weight parts earlier, stand-by.Wherein, suspension agent is that vinyl pyrrolidone and methylcellulose gum connect branched copolymer, and chain regulator is a propyl alcohol, and initiator is a Diisopropyl azodicarboxylate.
Vinylchlorid with above-mentioned vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator, deionized water and half weight drops in the reactor again, heats when stirring.After reducing to 0.2Mpa when heating to 75 ℃, reaction pressure, in 7 hours, slowly add the vinylchlorid of half remaining weight, and continue to stir copolyreaction 13 hours.
Afterwards, dewater, obtain the work in-process resin of moisture 20 weight % with whizzer.The water polymerizable of deviating from recycles.
Again, the work in-process resin is dried up with 125 ℃ hot blasts.
At last, with 40 purpose sieve, obtain soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.
Embodiment four
Choose the vinylchlorid of 75 weight parts, vinyl acetate between to for plastic, 15 parts by weight of acrylic hydroxypropyl acrylates, the suspension agent of 5 weight parts, the chain regulator of 30 weight parts, the initiator of 0.3 weight part and 150 parts the deionized water of 5 weight parts earlier, stand-by.Wherein, suspension agent is that vinyl pyrrolidone and methylcellulose gum connect branched copolymer, and chain regulator is a butanols, and initiator is a Diisopropyl azodicarboxylate.
Vinylchlorid with above-mentioned vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator, deionized water and half weight drops in the reactor again, heats when stirring.After reducing to 0.2Mpa when heating to 75 ℃, reaction pressure, in 7 hours, slowly add the vinylchlorid of half remaining weight, and continue to stir copolyreaction 13 hours.
Afterwards, dewater, obtain the work in-process resin of moisture 20 weight % with whizzer.The water polymerizable of deviating from recycles.
Again, the work in-process resin is dried up with 125 ℃ hot blasts.
At last, with 40 purpose sieve, obtain soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.
Claims (1)
1. method for preparing soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins is characterized in that may further comprise the steps successively:
(1) choose the raw material of following parts by weight:
60～75 parts in vinylchlorid;
5～10 parts of vinyl acetate between to for plastics;
15～30 parts of Propylene glycol monoacrylates;
3～5 parts of suspension agents;
30～40 parts of chain regulators;
0.3～0.5 part of initiator;
150～200 parts of deionized waters;
Wherein, suspension agent is that vinyl pyrrolidone and methylcellulose gum connect branched copolymer, and chain regulator is any one in methyl alcohol, ethanol, propyl alcohol and the butanols, and initiator is a Diisopropyl azodicarboxylate;
(2) above-mentioned vinyl acetate between to for plastic, Propylene glycol monoacrylate, suspension agent, chain regulator, initiator, deionized water and half vinylchlorid are dropped in the reactor, when stirring, heat; After reducing to 0.2Mpa when heating to 70～75 ℃, reaction pressure, in 7～10 hours, slowly add half remaining vinylchlorid, and continue to stir copolyreaction 13～15 hours;
(3) dewater;
(4) with 115～125 ℃ hot blast drying;
(5) with 40 purpose sieve, obtain soluble chlorine ethene-vinyl acetate-Propylene glycol monoacrylate copolymer resins.
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| CN 201110135924 CN102295725B (en) | 2011-05-17 | 2011-05-17 | Method for preparing soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin |
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| CN 201110135924 CN102295725B (en) | 2011-05-17 | 2011-05-17 | Method for preparing soluble vinyl chloride-vinyl acetate-hydroxypropyl acrylate copolymer resin |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977252A (en) * | 2012-12-03 | 2013-03-20 | 无锡洪汇新材料科技股份有限公司 | Preparation method of MMA-BMA-MAA (methyl methacrylate-n-butyl methacrylate-methacrylic acid) ternary copolymer resin |
| CN103333281A (en) * | 2013-06-20 | 2013-10-02 | 无锡洪汇新材料科技股份有限公司 | Resin for blood transfusion tube/transfusion bag and preparation method thereof |
| CN109705675A (en) * | 2018-12-28 | 2019-05-03 | 东来涂料技术（上海）股份有限公司 | A kind of polyolefin material paint composite of chemical-resistant resistance and preparation method thereof |
| CN113321759A (en) * | 2021-06-10 | 2021-08-31 | 泰州市正大化工有限公司 | Preparation method of low-viscosity vinyl chloride-vinyl acetate copolymer |
Citations (3)
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| EP0264861A2 (en) * | 1986-10-24 | 1988-04-27 | Air Products And Chemicals, Inc. | Process for producing suspension polyvinyl chloride for powder coating applications |
| CN101338003A (en) * | 2008-08-12 | 2009-01-07 | 上海氯碱化工股份有限公司 | Method for preparing carboxylic acid-modified vinyl chloride-vinyl acetate copolymer resins |
| CN101402701A (en) * | 2008-10-22 | 2009-04-08 | 无锡市洪汇化工有限公司 | Method for preparing chloroethylene-vinyl acetate-maleic acid copolymerized resin |
-
2011
- 2011-05-17 CN CN 201110135924 patent/CN102295725B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0264861A2 (en) * | 1986-10-24 | 1988-04-27 | Air Products And Chemicals, Inc. | Process for producing suspension polyvinyl chloride for powder coating applications |
| CN101338003A (en) * | 2008-08-12 | 2009-01-07 | 上海氯碱化工股份有限公司 | Method for preparing carboxylic acid-modified vinyl chloride-vinyl acetate copolymer resins |
| CN101402701A (en) * | 2008-10-22 | 2009-04-08 | 无锡市洪汇化工有限公司 | Method for preparing chloroethylene-vinyl acetate-maleic acid copolymerized resin |
Non-Patent Citations (1)
| Title |
|---|
| 谢雷: "氯乙烯/丙烯酸酯二元及多元共聚物的研究进展", 《聚氯乙烯》, vol. 36, no. 9, 30 September 2008 (2008-09-30), pages 1 - 6 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977252A (en) * | 2012-12-03 | 2013-03-20 | 无锡洪汇新材料科技股份有限公司 | Preparation method of MMA-BMA-MAA (methyl methacrylate-n-butyl methacrylate-methacrylic acid) ternary copolymer resin |
| CN102977252B (en) * | 2012-12-03 | 2015-04-29 | 无锡洪汇新材料科技股份有限公司 | Preparation method of MMA-BMA-MAA (methyl methacrylate-n-butyl methacrylate-methacrylic acid) ternary copolymer resin |
| CN103333281A (en) * | 2013-06-20 | 2013-10-02 | 无锡洪汇新材料科技股份有限公司 | Resin for blood transfusion tube/transfusion bag and preparation method thereof |
| CN103333281B (en) * | 2013-06-20 | 2015-07-15 | 无锡洪汇新材料科技股份有限公司 | Resin for blood transfusion tube/transfusion bag and preparation method thereof |
| CN109705675A (en) * | 2018-12-28 | 2019-05-03 | 东来涂料技术（上海）股份有限公司 | A kind of polyolefin material paint composite of chemical-resistant resistance and preparation method thereof |
| CN113321759A (en) * | 2021-06-10 | 2021-08-31 | 泰州市正大化工有限公司 | Preparation method of low-viscosity vinyl chloride-vinyl acetate copolymer |
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| CN102295725B (en) | 2013-04-10 |
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