CN1178223A - Preparation of metachloroethylene copolymer latex - Google Patents
Preparation of metachloroethylene copolymer latex Download PDFInfo
- Publication number
- CN1178223A CN1178223A CN 97110435 CN97110435A CN1178223A CN 1178223 A CN1178223 A CN 1178223A CN 97110435 CN97110435 CN 97110435 CN 97110435 A CN97110435 A CN 97110435A CN 1178223 A CN1178223 A CN 1178223A
- Authority
- CN
- China
- Prior art keywords
- preparation
- copolymer latex
- metachloroethylene copolymer
- latex
- grams
- 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.)
- Pending
Links
- 239000004816 latex Substances 0.000 title claims abstract description 19
- 229920000126 latex Polymers 0.000 title claims abstract description 19
- 229920001577 copolymer Polymers 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims description 12
- 239000000178 monomer Substances 0.000 claims abstract description 11
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 16
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 8
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 8
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 7
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 claims description 6
- 238000004945 emulsification Methods 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 230000000379 polymerizing effect Effects 0.000 claims description 5
- -1 polyoxyethylene groups Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000007720 emulsion polymerization reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000004160 Ammonium persulphate Substances 0.000 description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 3
- 235000019395 ammonium persulphate Nutrition 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000006353 oxyethylene group Chemical group 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 2
- 229910000397 disodium phosphate Inorganic materials 0.000 description 2
- 235000019800 disodium phosphate Nutrition 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 208000036142 Viral infection Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Abstract
A semi-continouus emulsion polymerization process for preparing latex of meta-chloroethylene copolymer features that an emulsifier is used to fully emulsify meta-chloroethylene and copolymerizing monomer and dripping the emulsified monomer into reactor for reaction, and has the advantages of high stability, properties and film performance.
Description
The present invention relates to a kind of preparation method of multipolymer, especially the preparation method of metachloroethylene copolymer latex.
Metachloroethylene copolymer (PVDC) is one of popular three big high barrier polymer materialss in the world today, owing to its good resistance oxygen, block water, hinder CO
2The property, low heat-sealing temperature, and performances such as oil resistant, chemically-resistant have been widely used in the packing of food, beverage, medicine and other numerous commodity at present.Metachloroethylene copolymer has three types, the one, molding and blow molding resins, the 2nd, dissolve in the resin of organic solvent, the 3rd, latex, because latex does not contain inflammable and virose solvent, and viscosity is low, viscosity is little, therefore is widely used, and often directly coats film class base materials such as PVC, BOPP, PE, PET, nylon and paper.
Metachloroethylene copolymer latex is to adopt the emulsion polymerization preparation, and letex polymerization is a kind of important polymerization methods in the polymerization industry, and emulsion polymerization systems generally is made up of monomer, dispersion medium (such as water), emulsifying agent, initiator and other additive.Input and lead-out mode according to material, letex polymerization is divided into batchwise polymerization, semi-continuous polymerzation and successive polymerization again, semi-continuous polymerzation is that part or all of material is used for dripping but not disposable input reactor, and semi-continuous polymerzation is divided into no seed again and seeding polymerization is arranged according to operating method.
The existing many pieces of patents of Japan provide the preparation method of metachloroethylene copolymer, for example clear 57-57708, clear 59-93706, clear 57-139136, clear 60-17248 etc., but, the operating method of the semi-continuous emulsion polymerizing of bibliographical information all is that pure monomer drips, its weak point is to be difficult to prepare the polymer latex of size distribution homogeneous, and has influence on the stability of latex.
The object of the present invention is to provide a kind of preparation method of metachloroethylene copolymer latex, thereby obtain the metachloroethylene copolymer latex of stable and other excellent property.
The object of the present invention is achieved like this: a kind of preparation method of metachloroethylene copolymer latex, adopt the preparation of semi-continuous emulsion polymerizing method, at first with emulsifying agent that vinylidene chloride and comonomer is fully emulsified, then that emulsification is good monomer dropping goes in the reactor to react.
Said emulsifying agent adopts the mixed system of sodium lauryl sulphate and polyoxyethylene groups octylphenol ether, and sodium lauryl sulphate is 1 part, and the polyoxyethylene groups octylphenol ether is 1～4 part.
Adopt such technical scheme can under acidic conditions, make stable vinylidene chloride latex; Be on 1500 rev/mins the whizzer centrifugal 5 minutes at rotating speed with the latex that makes, latex sediment volume content is about 5%; Prepared latex HCl comes off and also is inhibited; Stability in storage also increases.Simultaneously, latex performance and film properties also are improved.
Further specify the present invention below in conjunction with embodiment.
Embodiment (one)
The seed semi-continuous emulsion polymerizing.Reaction is carried out in two stages, fs: successively reaction medium water 55 grams, oxygenant ammonium persulphate 0.072 gram, reductive agent sodium bisulfite 0.18 gram, emulsifier sodium lauryl sulfate and polyoxyethylene groups octylphenol ether 0.3 gram, vinylidene chloride 18 grams and comonomer methyl methacrylate 1.7 grams are added in the reactor, inflated with nitrogen to reaction system pressure is 1 kilogram/square centimeter then, open stirring and be warming up to 55 ℃, reacted 2 hours; Subordinate phase: in a container, add entry 25 grams, ammonium persulphate 0.288 gram, sodium lauryl sulphate and oxyethylene group octylphenol ether 2.2 grams, Sodium phosphate dibasic 0.76 gram, vinylidene chloride 72 grams, methyl methacrylate 6.8 grams and vinylformic acid 1.5 grams, fully stir until mixing, this promptly is monomeric emulsification procedure, the monomer that emulsification is good is added dropwise to the reaction system of fs continuously by volume pump, until dripping all emulsified monomers.Reaction is continued in the reinforced back that finishes, and pressure is reduced to when constant substantially, the intensification slaking, and residual monomer is removed in cooling, release then, opens the still discharging.
Embodiment (two)
No seed semi-continuous emulsion polymerizing.Add entry 40 grams, sodium bisulfite 0.18 gram and sodium lauryl sulphate and oxyethylene group octylphenol ether 0.25 gram in reactor, inflated with nitrogen to reaction system pressure is 1 kilogram/square centimeter then, opens stirring and is warming up to 55 ℃.In a container, add entry 40 grams, ammonium persulphate 0.36 gram, sodium lauryl sulphate and oxyethylene group octylphenol ether 2.25 grams, Sodium phosphate dibasic 0.76 gram, vinylidene chloride 90 grams, methyl methacrylate 8.5 grams and vinylformic acid 1.5 grams, fully stir until mixing, the monomer that emulsification is good is added dropwise in the reactor by volume pump continuously, until dripping off, reaction is continued in the reinforced back that finishes, pressure is reduced to when constant substantially, the intensification slaking, cooling, release then, remove residual monomer, open the still discharging.
Claims (2)
1. the preparation method of a metachloroethylene copolymer latex adopts the preparation of semi-continuous emulsion polymerizing method, and it is characterized in that: at first with emulsifying agent that vinylidene chloride and comonomer is fully emulsified, then that emulsification is good monomer dropping goes in the reactor to react.
2. the preparation method of metachloroethylene copolymer latex as claimed in claim 1, it is characterized in that: said emulsifying agent adopts the mixed system of sodium lauryl sulphate and polyoxyethylene groups octylphenol ether, sodium lauryl sulphate is 1 part, and the polyoxyethylene groups octylphenol ether is 1～4 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97110435 CN1178223A (en) | 1997-04-26 | 1997-04-26 | Preparation of metachloroethylene copolymer latex |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97110435 CN1178223A (en) | 1997-04-26 | 1997-04-26 | Preparation of metachloroethylene copolymer latex |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1178223A true CN1178223A (en) | 1998-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97110435 Pending CN1178223A (en) | 1997-04-26 | 1997-04-26 | Preparation of metachloroethylene copolymer latex |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1178223A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087249A (en) * | 2012-12-26 | 2013-05-08 | 海南必凯水性涂料有限公司 | Latex for packaging foods and preparation method and application thereof |
| CN109438608A (en) * | 2018-11-07 | 2019-03-08 | 长春工业大学 | A kind of preparation method of degradable dinner set metachloroethylene copolymer water-based emulsion |
| CN113024743A (en) * | 2021-03-08 | 2021-06-25 | 青海洁神环境能源产业有限公司 | Two-component PVDC latex for biological rotating disc |
-
1997
- 1997-04-26 CN CN 97110435 patent/CN1178223A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087249A (en) * | 2012-12-26 | 2013-05-08 | 海南必凯水性涂料有限公司 | Latex for packaging foods and preparation method and application thereof |
| CN103087249B (en) * | 2012-12-26 | 2015-12-23 | 海南聚能功能薄膜技术开发有限公司 | Food packaging latex and its preparation method and application |
| CN109438608A (en) * | 2018-11-07 | 2019-03-08 | 长春工业大学 | A kind of preparation method of degradable dinner set metachloroethylene copolymer water-based emulsion |
| CN113024743A (en) * | 2021-03-08 | 2021-06-25 | 青海洁神环境能源产业有限公司 | Two-component PVDC latex for biological rotating disc |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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