CN85100403A - Produce the styrene polymer emulsion for architecture novel method - Google Patents
Produce the styrene polymer emulsion for architecture novel method Download PDFInfo
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- CN85100403A CN85100403A CN 85100403 CN85100403A CN85100403A CN 85100403 A CN85100403 A CN 85100403A CN 85100403 CN85100403 CN 85100403 CN 85100403 A CN85100403 A CN 85100403A CN 85100403 A CN85100403 A CN 85100403A
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- persulphate
- vinylbenzene
- sulphite
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- produce
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Abstract
The invention belongs to the production method of polymer material of construction.Produce styrene polymer emulsion for architecture and generally use initiator, make acrylate and vinylbenzene and vinylformic acid carry out the emulsification copolymerization and make.This method production cycle is long, cost is high.The present invention then adopts new drawing activation system-persulphate and sulphite, and making butyl acrylate and vinylbenzene and vinylformic acid is to carry out emulsion copolymerization between 30～70 ℃ to produce the propyl benzene latex in temperature.The consumption of persulphate and sulphite is respectively 0.1%～1% and 0.05%～0.5% of butyl acrylate and vinylbenzene mix monomer.
Present method production cycle shortens half than original, and temperature of reaction has descended 30 ℃, and cost is low, remarkable in economical benefits.The latex performance reaches advanced international level, is suitable for making aqueous architectural coating.
Description
The invention belongs to the production method of polymer material of construction." the water-miscible paint technology " of publishing in nineteen eighty-three according to Lanzhou coating institute of China the Ministry of Chemical Industry and 1984 are described by " esters of acrylic acid coating technology " special issue that " coatings industry " Journal Editorial Office compile, producing at present that styrene polymer emulsion for architecture all adopts with the persulphate is initiator, makes acrylate and vinylbenzene and vinylformic acid carry out emulsion copolymerization in compound emulsifying agent and soft water and reacts and make.There is the production cycle long (clear still needs 12 hours from preparing burden) in this method, temperature of reaction height (needing 95 ℃), and condensation product is many, and the problem that latex solids content is low causes the production cost height.
The object of the invention provides and a kind ofly can shorten the production cycle, reduces cost, and can produce well behaved styrene polymer emulsion for architecture novel method again.
The present invention is to be between 30～70 ℃ in temperature, adopt new drawing activation system, make butyl acrylate and vinylbenzene and vinylformic acid in compound emulsifying agent and soft water, carry out emulsion copolymerization, being neutralized to PH with ammoniacal liquor then is 8～9, after filtration just must be with the white propyl benzene latex of blue streak.Used the drawing activation system of this law is persulphate and sulphite; Compound emulsifying agent is sodium lauryl sulphate and OP-10 agent, and raw materials used proportioning is: butyl acrylate and vinylbenzene were formed mix monomer with 1: 1, were 100 with mix monomer; Vinylformic acid then is 1～5; Persulphate is 0.1～1; Sulphite is 0.05～0.5; Sodium lauryl sulphate is 0.5～1.5; The OP-10 agent is 1～8; Soft water is 100～110.
Present method is owing to adopted new initiation activation system, thereby accelerated the emulsion copolymerization speed of response, make the production cycle shorten to 6 hours by original 12 hours, temperature of reaction has descended 30 ℃, save energy, reduced cost, improved output, and the propyl benzene latex performance of producing has reached advanced international level, remarkable in economical benefits.Can be mixed with multiple aqueous architectural coating with this latex, special suitable for making water-based exterior wall paint.
The embodiment of the invention: 1, monomer purifying: in 50 liter reactors, put into 7.5 kilograms of butyl acrylates and 7.5 kilograms of vinylbenzene, with 5%NaOH solution and soft water its mixture is washed till neutrality successively, obtain mix monomer, with standby; 2, pre-emulsification: with 16 kilograms of soft water, 0.6 kilogram of vinylformic acid, 0.1～0.2 kilogram of sodium lauryl sulphate, 0.2～0.4 kilogram of OP-10 agent and 0.03～0.05 kilogram of sulphite, reach above-mentioned mix monomer and put into reactor stirring 30 minutes successively, make it to be emulsified into emulsion; 3, header tank charging: with 2/3 amount of above-mentioned emulsion with initiator solution and ammoniacal liquor that 0.06～0.1 kilogram of persulphate is made into, it is stand-by to put into three different header tanks respectively; 4, emulsion copolymerization reaction: the reactor that emulsion will be housed is heated and is got the amount of 1/3 in header tank initiator solution to 30～40 ℃ of And and add this reactor, when widely different stream appears in condenser, show and begin to carry out polyreaction, approximately after half hour, see when widely different stream weakens, continuation is with the emulsion in the header tank, initiator solution, in one hour, evenly add reactor respectively continuously, keep 40 ± 5 ℃ of polymerizations 1 hour, progressively be warmed to 60～70 ℃ again, add micro-initiator solution simultaneously, be incubated half an hour, reaction finishes.5, neutralization is filtered: will go up reactor and be cooled to 30 ℃, adding ammoniacal liquor, to be neutralized to PH be 8～9, filters then, discharging, promptly obtains the white propyl benzene latex with blue streak.The solids content index of this latex reaches 48 ± 2(%), low film formation temperature ≦ 16 ℃, and with this latex coatings formulated, through on probation, the product use properties is good, and speed of application is fast, is subjected to the user and welcomes.
Claims (3)
1, the invention belongs to the production method of polymer material of construction, be included in soft water, initiator, compound emulsifying agent-sodium lauryl sulphate and the OP-10 agent, make acrylic acid ester and benzene second rare with acrylic acid carry out emulsion copolymerization, it is characterized in that adding new drawing activation system, in temperature is between 30～70 ℃, makes the mix monomer and the acrylic acid of acrylic acid butyl ester and the rare composition of benzene second carry out emulsion copolymerization.
2,, it is characterized in that drawing activation system is persulphate and sulphite according to the described method of claim 1.
3, according to claim 1 and 2 described methods, it is characterized in that above-mentioned each raw material consumption proportion is: mix monomer is 100; Acrylic acid is 1～5; Sodium lauryl sulphate is 0.5～1.5; The OP-10 agent is 1～3; Persulphate is 0.1～1; Sulphite is 0.05～0.5; Soft water is 100～110.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100403 CN85100403A (en) | 1985-04-01 | 1985-04-01 | Produce the styrene polymer emulsion for architecture novel method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100403 CN85100403A (en) | 1985-04-01 | 1985-04-01 | Produce the styrene polymer emulsion for architecture novel method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85100403A true CN85100403A (en) | 1986-07-09 |
Family
ID=4791132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85100403 Pending CN85100403A (en) | 1985-04-01 | 1985-04-01 | Produce the styrene polymer emulsion for architecture novel method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85100403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051772C (en) * | 1991-02-21 | 2000-04-26 | 埃勒夫阿托化学有限公司 | Process for preparation of (co) polymers soluble in its compositions (copoly) monomers |
-
1985
- 1985-04-01 CN CN 85100403 patent/CN85100403A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051772C (en) * | 1991-02-21 | 2000-04-26 | 埃勒夫阿托化学有限公司 | Process for preparation of (co) polymers soluble in its compositions (copoly) monomers |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |