CN104004132A - Novel styrene-butadiene latex and preparing method for novel styrene-butadiene latex - Google Patents
Novel styrene-butadiene latex and preparing method for novel styrene-butadiene latex Download PDFInfo
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- CN104004132A CN104004132A CN201410257601.0A CN201410257601A CN104004132A CN 104004132 A CN104004132 A CN 104004132A CN 201410257601 A CN201410257601 A CN 201410257601A CN 104004132 A CN104004132 A CN 104004132A
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Abstract
The invention discloses novel styrene-butadiene latex and a preparing method for the novel styrene-butadiene latex. The styrene-butadiene latex is butadiene and styrene binary copolymer emulsion, is usually mixed with butadiene-vinylpyridine copolymer latex and natural latex and is mainly used as dipping latex of nylon fibers, products of the styrene-butadiene latex include tires, transfusion bags, triangular belts and the like, all manufacturers for producing the butadiene-vinylpyridine copolymer latex at present can produce the styrene-butadiene latex, and the technology is the intermittent kettle type thermal polymerization technology. According to the novel styrene-butadiene latex and the preparing method, the redox initiating system intermittent cold polymerization technology is adopted, olefin monomers, namely active emulsifying agents, with hydrophilic groups are added in the polymerization process, the dry glue content is remarkably increased, and the latex bonding performance is remarkably improved; meanwhile, the chemical stability and the foam performance of the latex are improved, rubber sheets and rubber crumbs generated in latex dipping of the latex are reduced, the latex dipping period is prolonged, energy consumption is reduced, and the dipped latex production rate is improved.
Description
Technical field
The present invention relates to a kind of butadiene-styrene latex polymerization technique, specifically a kind of novel styrene-butadiene latex and preparation method thereof.
Background technology
Styrene-butadiene latex is divinyl, vinylbenzene, binary copolymerization emulsion, conventionally mixed with vinyl-pyridine latex and natural rubber latex, the main impregnation with nylon fiber, its goods have tire, infusion bag, wire belt etc., the manufacturer of production fourth pyrrole all can produce styrene-butadiene latex at present, its technique all adopts intermittently autoclave hot polymerization technique, hot polymerization explained hereafter styrene-butadiene latex drc is out lower, latex bonded poor-performing, the rubber that latex produces in impregnation and buffings, the impregnation cycle is longer, and energy consumption is high, and production efficiency is low.
Summary of the invention
A kind of novel styrene-butadiene latex of example of the present invention and preparation method thereof refers to that employing divinyl, St emulsion evenly add olefinic monomer (claiming again active emulsifier) and cold poly-the forming of oil phase with hydrophilic radical simultaneously under tank reactor at intermittence, and its concrete polymerization formula is:
Temperature of reaction is at 2～10 DEG C, reaction pressure 0.2～1.0Mpa, 15～26 hours time, terminal solid content nearly 42%.
Wherein said active emulsifier refers to the olefin monomer with hydrophilic radical, and described hydrophilic radical is ether, hydroxyl and carboxylicesters, the block polyether etc. of carboxylic acid group, sulfonic group, sulfate, phosphate, oxy radical composition; Described olefines is C2～C18 normal olefine or branched alkene, comprises sodium p styrene sulfonate, acrylamido propyl sulfonic acid sodium, methylpropene sodium sulfonate, vinylformic acid, methylene-succinic acid etc.
Embodiment
Each embodiment can further illustrate the present invention below.
Embodiment 1
Styrene-butadiene latex polymerization formula:
Divinyl: 70 parts
Vinylbenzene: 29 parts
Active emulsifier: sodium p styrene sulfonate: 1.0 parts
Soft water: 145 parts
Rosined soap: 2.5 parts
Stearate soap: 0.8 part
Assistant for emulsifying agent (sodium metnylene bis-naphthalene sulfonate): 0.5 part
OP-10:0.5 part
Rongalite: 0.05 part
Vat powder: 0.02 part
Molecular weight regulator, tert-dodecyl mercaptan: 0.8 part
Initiator, dicumyl peroxide: 0.1 part
Terminator: 0.05 part
2. production technique:
A) in polymerization reaction kettle, add soft water, rosined soap, stearate soap, sodium metnylene bis-naphthalene sulfonate, OP-10, rongalite, vat powder, and open and stir, add part divinyl, vinylbenzene;
B) add dicumyl peroxide to start reaction, control 5 DEG C of temperature of reaction, reaction pressure 0.3～0.5Mpa;
C), in the time that solid content reaches 16%, limit coronite adds residue divinyl and sodium p styrene sulfonate;
D) about 18 hours reaction times, add terminator, solid content reaches 41%, stopped reaction.
The present invention adopts the intermittently cold polymerizing technology of autoclave of redox initiation, adopt the olefinic monomer (claiming again active emulsifier) with hydrophilic radical simultaneously, compare to hot polymerization explained hereafter styrene-butadiene latex property indices out on market, market and obviously improve, concrete data are compared as follows:
Above-mentioned concrete embodiment is to further describe of the present invention, can not be interpreted as limiting the scope of the invention, the invention is not restricted to above-mentioned embodiment.
Claims (2)
1. novel styrene-butadiene latex and preparation method thereof, is characterized in that, this styrene-butadiene latex adopts divinyl, St emulsion under tank reactor, evenly to add cold poly-the forming of active emulsifier and oil phase simultaneously at intermittence, and its concrete polymerization formula is:
Temperature of reaction is at 2～10 DEG C, reaction pressure 0.2～1.0Mpa, 15～26 hours time, terminal solid content nearly 42%.
2. according to novel styrene-butadiene latex of one described in claims 1 and preparation method thereof, it is characterized in that, described active emulsifier refers to the olefin monomer with hydrophilic radical, and described hydrophilic radical is ether, hydroxyl and carboxylicesters, the block polyether etc. of carboxylic acid group, sulfonic group, sulfate, phosphate, oxy radical composition; Described olefines is C2～C18 normal olefine or branched alkene, comprises sodium p styrene sulfonate, acrylamido propyl sulfonic acid sodium, methylpropene sodium sulfonate, vinylformic acid, methylene-succinic acid etc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410257601.0A CN104004132A (en) | 2014-06-06 | 2014-06-06 | Novel styrene-butadiene latex and preparing method for novel styrene-butadiene latex |
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| CN201410257601.0A CN104004132A (en) | 2014-06-06 | 2014-06-06 | Novel styrene-butadiene latex and preparing method for novel styrene-butadiene latex |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478882A (en) * | 2016-11-30 | 2017-03-08 | 黄河三角洲京博化工研究院有限公司 | A kind of high solids content butadiene-styrene latex of microwave method synthesis and preparation method thereof |
| CN106478883A (en) * | 2016-11-30 | 2017-03-08 | 黄河三角洲京博化工研究院有限公司 | A kind of styrene-butadiene latex and preparation method thereof |
| CN106699970A (en) * | 2016-11-26 | 2017-05-24 | 山东奥固特化工有限公司 | Butadiene styrene vinyl-pyridine latex and preparation method thereof |
| CN107602769A (en) * | 2017-09-20 | 2018-01-19 | 山东鼎鼎化学科技股份有限公司 | A kind of method of synthesis MBS resins |
| CN109776726A (en) * | 2017-11-15 | 2019-05-21 | 中国石油天然气股份有限公司 | The preparation method and butadiene-styrene rubber of butadiene-styrene rubber |
| CN111548449A (en) * | 2020-05-22 | 2020-08-18 | 浙江维泰橡胶有限公司 | Method for preparing deep-color high-strength styrene-butadiene rubber |
-
2014
- 2014-06-06 CN CN201410257601.0A patent/CN104004132A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699970A (en) * | 2016-11-26 | 2017-05-24 | 山东奥固特化工有限公司 | Butadiene styrene vinyl-pyridine latex and preparation method thereof |
| CN106478882A (en) * | 2016-11-30 | 2017-03-08 | 黄河三角洲京博化工研究院有限公司 | A kind of high solids content butadiene-styrene latex of microwave method synthesis and preparation method thereof |
| CN106478883A (en) * | 2016-11-30 | 2017-03-08 | 黄河三角洲京博化工研究院有限公司 | A kind of styrene-butadiene latex and preparation method thereof |
| CN107602769A (en) * | 2017-09-20 | 2018-01-19 | 山东鼎鼎化学科技股份有限公司 | A kind of method of synthesis MBS resins |
| CN109776726A (en) * | 2017-11-15 | 2019-05-21 | 中国石油天然气股份有限公司 | The preparation method and butadiene-styrene rubber of butadiene-styrene rubber |
| CN109776726B (en) * | 2017-11-15 | 2021-11-02 | 中国石油天然气股份有限公司 | Preparation method of styrene butadiene rubber and styrene butadiene rubber |
| CN111548449A (en) * | 2020-05-22 | 2020-08-18 | 浙江维泰橡胶有限公司 | Method for preparing deep-color high-strength styrene-butadiene rubber |
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Application publication date: 20140827 |