CN105237667A - Preparation method of styrene-butadiene latex for carpets - Google Patents
Preparation method of styrene-butadiene latex for carpets Download PDFInfo
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- CN105237667A CN105237667A CN201510679150.4A CN201510679150A CN105237667A CN 105237667 A CN105237667 A CN 105237667A CN 201510679150 A CN201510679150 A CN 201510679150A CN 105237667 A CN105237667 A CN 105237667A
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- styrene
- butadiene latex
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Abstract
The invention provides a preparation method of styrene-butadiene latex for carpets. The method comprises the steps that butadiene and styrene serve as main monomers, a seed emulsion polymerization technology is adopted, functional monomers and auxiliary monomers are added, nano calcium carbonate and nano starch serve as seed gum, reactive emulsifiers and anionic emulsifiers are used in a compounding mode to serve as emulsifiers, thermal decomposition type persulfate is adopted as an initiator, and alkyl sulfhydryl is adopted as molecular weight modifiers; feeding is performed by adopting a continuously dropwise adding mode for high-temperature emulsion polymerization, and lastly the environment-friendly styrene-butadiene latex for the carpets is synthesized by adding PH conditioning agents and terminating agents after reduced-pressure flash evaporation gas removal is performed. The styrene-butadiene latex can be applied to backing binding materials of the middle-grade and high-grade tufted carpets and the needle-punched carpets, and the carpets prepared from the styrene-butadiene latex are soft in handfeel, not prone to cracking, very good in elasticity, good in water resistance, high in bonding strength, green and environmentally friendly.
Description
Technical field
The present invention originally relate to a kind of preparation method of carpet styrene-butadiene latex, particularly relates to a kind of preparation method of environmental protection carpet carboxylic styrene butadiene latex, belongs to the technical field of letex polymerization.
Background technology
Along with the raising of people's living standard, high-grade carpet comes into the family of people gradually, demand continues to increase, introduce and technological assimilation absorption through the equipment of 20 years, China's carpet industry has possessed good equipment and technology basis and has a collection ofly had considerable scale, product specification is high, quality is really up to the mark, the leading enterprise little with advanced international standard gap shows one's talent, and before thoroughly having reversed the more than ten years, domestic required medium-to-high grade carpet almost all to rely on the situation of import.Along with the continuous fast continual development of carpet industry, styrene-butadiene latex is done to the water-repellancy of sizing agent, cohesive force, mechanical stability, chemical stability, the feature of environmental protection etc. are had higher requirement, and current domestic carpet manufacturing producer generally selects external high-grade environmental protection styrene-butadiene latex.In order to overcome these problems, through studying exploitation for a long period of time, the preparation method of this carpet styrene-butadiene latex has been invented in experiment repeatedly.Make seed glue with nano-calcium carbonate and nano-starch, make particle diameter distribution of latex be very narrow single dispersing, cohesive strength is high, stablizes; Use response type and anionic emulsifier composite make polyreaction after the emulsification dosage that remains in latex greatly reduce, decrease the dried water-absorbent of glued membrane, water-wash resistance and dry cleaning resistance all obtain reinforcement.In addition, because adding nano-calcium carbonate and starch in reaction, can production cost be reduced, and, after latex drying, there is certain degradation function, more friendly to environment, meet the development trend of current material environment friendly.
Summary of the invention
The object of this invention is to provide a kind of preparation method of environment-friendly type carpet styrene-butadiene latex, this latex environmental protection, have excellent mechanical stability and chemical stability, water-repellancy and cohesive force are strengthened greatly, are particularly useful for medium and high classes carpet backing matrix material.
For realizing object of the present invention, the technical scheme of employing is:
A preparation method for carpet styrene-butadiene latex, raw material (parts by weight) composed as follows:
Deionized water: 100 ~ 120 parts;
Seed latex: 1 ~ 15 part;
Divinyl: 14 ~ 70 parts;
Vinylbenzene: 30 ~ 80 parts;
Function monomer: 0 ~ 6 part;
Auxiliary monomer: 1 ~ 5 part;
Compound emulsifying agent: 0.5 ~ 3 part;
Initiator: 0.3 ~ 1.5 part;
Molecular weight regulator: 0.1 ~ 1 part;
Ionogen needed for letex polymerization, sequestrant, PH buffer reagent;
Production process is as follows:
After polymeric kettle vacuumizes, drop into 50 ~ 80% of deionized water total amount, whole seed latex, 40 ~ 75% compound emulsifying agents, the vinylbenzene of 30 ~ 50% and divinyl, the function monomer of 40 ~ 60% and auxiliary monomer, and whole ionogen, sequestrant, PH buffer reagent, heats up, when temperature reaches 70 ~ 80 DEG C, add the initiator accounting for total amount 20 ~ 40%, react 1 hour.Drip residual styrene, divinyl, function monomer and auxiliary monomer, initiator, control temperature is at 80 ~ 90 DEG C, and the time is 2 ~ 4 hours, drips off simultaneously simultaneously.Insulation reaction 3 ~ 4 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.
In one embodiment, compound emulsifying agent is anionic emulsifier and the composite composition of reactive emulsifier.
In one embodiment, reactive emulsifier is allyl ethers hydroxypropanesulfonic acid sodium, toxilic acid tetradecyl sodium allylsulfonate, and one or more mixtures in fatty alcohol-ether vinyl sulfonic acid sodium salt.
In one embodiment, seed latex is nano-calcium carbonate and nano-starch, and its size scope is all 50 ~ 200nm.
In one embodiment, seed latex is that nano-calcium carbonate and nano-starch are mixed, and its weight ratio is composite in the ratio of 0.5 ~ 1.5.
In one embodiment, auxiliary monomer is vinyl cyanide, methacrylonitrile, glycidyl methacrylate, one or more mixtures in methyl acrylate, methyl methacrylate.
In one embodiment, function monomer is one or more mixtures in fumaric acid, methylene-succinic acid, maleic anhydride.
Beneficial effect of the present invention: the latex adopting our legal system, environmental protection, there is excellent mechanical stability and chemical stability, add Novel seed latex of the present invention and add composite emulsifier, water-repellancy and cohesive force are strengthened all greatly, are particularly useful for medium and high classes carpet backing matrix material.
Embodiment
The polymeric kettle of embodiment 1:300L first vacuumizes, and vacuum tightness reaches-0.1MPa, drops into deionized water 63KG successively, whole seed glue A, 23.2KG divinyl, 16.8KG vinylbenzene, vinyl cyanide 1.5KG, glycidyl methacrylate 1KG, heat up, when temperature reaches 80 DEG C, add the initiator of 0.1KG, react 1 hour, then drip the component of following formula ratio simultaneously:
Time for adding 3 hours, during dropping, control temperature is at about 85 DEG C.95 DEG C of insulation reaction 2 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.The i.e. carpet styrene-butadiene latex of obtained a kind of excellent performance, solid content 47.5%, viscosity 126cps, particle diameter 135nm, its physical property measurement the results are shown in subordinate list.
The polymeric kettle of embodiment 2:300L first vacuumizes, and vacuum tightness reaches-0.1MPa, drops into deionized water 66KG successively, whole seed glue B, 14.8KG divinyl, 25.2KG vinylbenzene, vinyl cyanide 2KG, fumaric acid 1.5KG, heat up, when temperature reaches 80 DEG C, add the initiator of 0.2KG, react 1 hour, then drip the component of following formula ratio simultaneously:
Time for adding 3 hours, during dropping, control temperature is at about 85 DEG C.95 DEG C of insulation reaction 2 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.The i.e. carpet styrene-butadiene latex of obtained a kind of excellent performance, solid content 48.1%, viscosity 151cps, particle diameter 186nm, its physical property measurement the results are shown in subordinate list.
The polymeric kettle of embodiment 3:300L first vacuumizes, and vacuum tightness reaches-0.1MPa, drops into deionized water 67.2KG successively, whole seed glue B, 18KG divinyl, 22KG vinylbenzene, vinyl cyanide 1.5KG, glycidyl methacrylate 0.5KG, methylene-succinic acid 1KG, heat up, when temperature reaches 80 DEG C, add the initiator of 0.3KG, react 1 hour, then drip the component of following formula ratio simultaneously:
Time for adding 3 hours, during dropping, control temperature is at about 85 DEG C.95 DEG C of insulation reaction 2 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.The i.e. carpet styrene-butadiene latex of obtained a kind of excellent performance, solid content 46.9%, viscosity 107cps, particle diameter 155nm, its physical property measurement the results are shown in subordinate list.
The polymeric kettle of embodiment 4:300L first vacuumizes, and vacuum tightness reaches-0.1MPa, drops into deionized water 61.2KG successively, whole seed glue C, 21.6KG divinyl, 18.4KG vinylbenzene, vinyl cyanide 1.2KG, glycidyl methacrylate 2KG, heat up, when temperature reaches 80 DEG C, add the initiator of 0.2KG, react 1 hour, then drip the component of following formula ratio simultaneously:
Time for adding 3 hours, during dropping, control temperature is at about 85 DEG C.95 DEG C of insulation reaction 2 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.The i.e. carpet styrene-butadiene latex of obtained a kind of excellent performance, solid content 48.6%, viscosity 148cps, particle diameter 154nm, its physical property measurement the results are shown in subordinate list.
The polymeric kettle of embodiment 5:300L first vacuumizes, and vacuum tightness reaches-0.1MPa, drops into deionized water 67.8KG successively, whole seed glue C, 15.6KG divinyl, 24.4KG vinylbenzene, vinyl cyanide 1KG, methylene-succinic acid 2.5KG, heat up, when temperature reaches 80 DEG C, add the initiator of 0.3KG, react 1 hour, then drip the component of following formula ratio simultaneously:
Time for adding 3 hours, during dropping, control temperature is at about 85 DEG C.95 DEG C of insulation reaction 2 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.The i.e. carpet styrene-butadiene latex of obtained a kind of excellent performance, solid content 46.7%, viscosity 119cps, particle diameter 171nm, its physical property measurement the results are shown in subordinate list.
The testing method accepted standard of latex is as follows:
Total solid content: SH/T1154-92
Viscosity: SH/T1152-92
PH value: SH/T1150-92
Surface tension: SH/T1156-92
Mechanical stability: SH/T1151-92
Chemical stability: SH/T1608-95
Particle diameter: AUTOSIZERIIC particle instrument.
Table one: seed glue proportioning
| Seed glue | A | B | C |
| Nano-calcium carbonate | 10 | 13 | 15 |
| Nano-starch | 16 | 13 | 11 |
| Deionized water | 74 | 74 | 74 |
Table two: embodiment
Table three: the physical property of product detected result
Claims (7)
1. a carpet styrene-butadiene latex preparation method, is characterized in that:
Raw material (parts by weight) composed as follows:
Deionized water: 100 ~ 120 parts;
Seed latex: 1 ~ 15 part;
Divinyl: 14 ~ 70 parts;
Vinylbenzene: 30 ~ 80 parts;
Function monomer: 0 ~ 6 part;
Auxiliary monomer: 1 ~ 5 part;
Compound emulsifying agent: 0.5 ~ 3 part;
Initiator: 0.3 ~ 1.5 part;
Molecular weight regulator: 0.1 ~ 1 part;
Ionogen needed for letex polymerization, sequestrant, PH buffer reagent;
Production process is as follows:
After polymeric kettle vacuumizes, drop into 50 ~ 80% of deionized water total amount, whole seed latex, 40 ~ 75% compound emulsifying agents, the vinylbenzene of 30 ~ 50% and divinyl, the function monomer of 40 ~ 60% and auxiliary monomer, and whole ionogen, sequestrant, PH buffer reagent, heats up, when temperature reaches 70 ~ 80 DEG C, add the initiator accounting for total amount 20 ~ 40%, react 1 hour; Drip residual styrene, divinyl, function monomer and auxiliary monomer, initiator, control temperature is at 80 ~ 90 DEG C, and the time is 2 ~ 4 hours, drips off simultaneously simultaneously; Insulation reaction 3 ~ 4 hours, when transformation efficiency reaches more than 99%, latex be pressed into degassed still and add 0.1 ~ 0.3 part of terminator solution, then carrying out the degassed process of vacuum flashing, remove unreacted monomer, add alkali lye to regulate between pH value to 7 ~ 8, cooling discharge filters and packages.
2. the preparation method of carpet styrene-butadiene latex according to claim 1, is characterized in that: compound emulsifying agent is anionic emulsifier and the composite composition of reactive emulsifier.
3. the preparation method of carpet styrene-butadiene latex according to claim 2, it is characterized in that: reactive emulsifier is allyl ethers hydroxypropanesulfonic acid sodium, toxilic acid tetradecyl sodium allylsulfonate, and one or more mixtures in fatty alcohol-ether vinyl sulfonic acid sodium salt.
4. the preparation method of carpet styrene-butadiene latex according to claim 1, is characterized in that: seed latex is nano-calcium carbonate and nano-starch, and its size scope is all 50 ~ 200nm.
5. the preparation method of the carpet styrene-butadiene latex according to claim 1 or 4, is characterized in that: seed latex is that nano-calcium carbonate and nano-starch are mixed, and its weight ratio is composite in the ratio of 0.5 ~ 1.5.
6. the preparation method of carpet styrene-butadiene latex according to claim 1, is characterized in that: auxiliary monomer is vinyl cyanide, methacrylonitrile, glycidyl methacrylate, one or more mixtures in methyl acrylate, methyl methacrylate.
7. the preparation method of carpet styrene-butadiene latex according to claim 1, is characterized in that: function monomer is one or more mixtures in fumaric acid, methylene-succinic acid, maleic anhydride.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106749917A (en) * | 2016-11-30 | 2017-05-31 | 杭州蓝诚新材料有限公司 | Fabric coating styrene-butadiene latex and preparation method thereof |
| CN107254020A (en) * | 2017-06-29 | 2017-10-17 | 襄阳福源兴盛科技有限公司 | A kind of carboxylic acid styrene-butadiene latex and its production method |
| CN108440719A (en) * | 2018-03-26 | 2018-08-24 | 杭州蓝励新材料有限公司 | Styrene-butadiene latex for paper coating, seed latex and preparation method thereof |
| CN108503752A (en) * | 2018-03-26 | 2018-09-07 | 杭州蓝励新材料有限公司 | A kind of spinning coating styrene-butadiene latex and preparation method thereof |
| CN109180847A (en) * | 2018-08-21 | 2019-01-11 | 济宁明升新材料有限公司 | A kind of preparation method of Small-particle-size carboxylic styrene-butadiene latex |
| CN109180846A (en) * | 2018-08-21 | 2019-01-11 | 济宁明升新材料有限公司 | A kind of preparation method of Small-particle-size carboxylic styrene-butadiene latex |
| CN114195946A (en) * | 2021-12-28 | 2022-03-18 | 上海昶法新材料有限公司 | Printed carpet adhesive and preparation method thereof |
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| CN102786620A (en) * | 2012-07-18 | 2012-11-21 | 杭州蓝诚实业有限公司 | Small-particle-size carboxylic styrene-butadiene latex and its preparation method |
| CN103193924A (en) * | 2013-04-03 | 2013-07-10 | 衡水新光化工有限责任公司 | Phase-control film-formation styrene-acrylate painting emulsion and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106749917A (en) * | 2016-11-30 | 2017-05-31 | 杭州蓝诚新材料有限公司 | Fabric coating styrene-butadiene latex and preparation method thereof |
| CN106749917B (en) * | 2016-11-30 | 2018-10-09 | 杭州蓝励新材料有限公司 | Fabric coating styrene-butadiene latex and preparation method thereof |
| CN107254020A (en) * | 2017-06-29 | 2017-10-17 | 襄阳福源兴盛科技有限公司 | A kind of carboxylic acid styrene-butadiene latex and its production method |
| CN108440719A (en) * | 2018-03-26 | 2018-08-24 | 杭州蓝励新材料有限公司 | Styrene-butadiene latex for paper coating, seed latex and preparation method thereof |
| CN108503752A (en) * | 2018-03-26 | 2018-09-07 | 杭州蓝励新材料有限公司 | A kind of spinning coating styrene-butadiene latex and preparation method thereof |
| CN108440719B (en) * | 2018-03-26 | 2020-06-05 | 杭州蓝励新材料有限公司 | Styrene-butadiene latex for paper coating, seed latex and preparation method thereof |
| CN109180847A (en) * | 2018-08-21 | 2019-01-11 | 济宁明升新材料有限公司 | A kind of preparation method of Small-particle-size carboxylic styrene-butadiene latex |
| CN109180846A (en) * | 2018-08-21 | 2019-01-11 | 济宁明升新材料有限公司 | A kind of preparation method of Small-particle-size carboxylic styrene-butadiene latex |
| CN114195946A (en) * | 2021-12-28 | 2022-03-18 | 上海昶法新材料有限公司 | Printed carpet adhesive and preparation method thereof |
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Address after: 311421, Zhejiang, Hangzhou province Fuyang District Street industrial function zone Applicant after: HANGZHOU LANCHENG NEW MATERIALS CO.,LTD. Address before: 311421, Zhejiang, Hangzhou province Fuyang District Street industrial function zone Applicant before: HANGZHOU LANCHENG LATEX CO.,LTD. |
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Effective date of registration: 20170531 Address after: Fuyang District of Hangzhou City Tian Feng Cun 310000 Spring Street in Zhejiang Province Applicant after: HANGZHOU LANLI NEW MATERIAL CO.,LTD. Address before: 311421, Zhejiang, Hangzhou province Fuyang District Street industrial function zone Applicant before: HANGZHOU LANCHENG NEW MATERIALS CO.,LTD. |
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