CN103044604A - Polyvinylidene chloride copolymer emulsion for glass fiber dip-coating liquid, as well as preparation method and use thereof - Google Patents
Polyvinylidene chloride copolymer emulsion for glass fiber dip-coating liquid, as well as preparation method and use thereof Download PDFInfo
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Abstract
The invention provides a polyvinylidene chloride copolymer emulsion for a glass fiber dip-coating liquid, as well as a preparation method and use thereof. The polyvinylidene chloride copolymer emulsion contains the following ingredients by weight calculated by 100 parts: 20-55 parts of monomer mixture which comprises vinylidene chloride accounting for 65-75 wt% of monomer mixture, acrylates accounting for 20-30 wt% of monomer mixture and acrylonitrile accounting for 5-10 wt% of monomer mixture; 0.1025 part of seed polymer emulsifier which comprises 0.0225 part of sodium dodecyl benzene sulfonate and 0.08 part of OP-10; 0.16 part of an initiator which comprises 0.08 part of organic peroxides and 0.08 part of sodium formaldehyde sulfoxylate; 0.3-1.2 parts of mixed emulsifier which comprises 0.15-0.6 part of sodium dodecyl sulfate and 0.15-0.6 part of sodium dodecyl benzene sulfonate. The dip-coating liquid has high stability, is not liable to demulsification upon storage for more than two years, has good uniformity of emulsion particles, and is excellent in leak tightness, flame retardancy and resistance to alkali. The polymerization process of the dip-coating liquid is highly safe and convenient for temperature/pressure control and has a short reaction time. The temperature for heat treatment during the dip-coating process is reduced.
Description
Technical field
The present invention relates to a kind of glass fibre lotion polyvinylidene dichloride copolymer emulsion and its production and use, especially a kind of glass fibre lotion PVDC emulsion and its production and use that adopts seeded emulsion polymerization to make.
Background technology
In recent years, benzene emulsion impregnated glass fiber screen cloth is widely used in energy saving building, but because benzene emulsion coating flame resistivity is bad, with the problems such as concrete binding is poor, limited the application of benzene emulsion in energy saving building.
At present glass fibre being carried out dip-coating or infiltrating substantially all is to adopt Resins, epoxy, vibrin, urethane resin system.Patent CN101746963A, 102020427A, 102211882A, 102219399A relates to the direct yarn treating compound of the alkali free glass fibre that adopts epoxy resin latex, CN101696550A relates to the treating compound that contains vinyl trichloro silane for glass fibre, CN102092963A relates to and contains tetraethoxysilane, water-soluble polyester, urethane, the treating compound of 3-aminopropyl trimethoxysilane, CN101838934A relates to and contains ptfe emulsion, polyacrylate dispersion, polyvinyl alcohol water solution, the treating compound of polymethylphenyl siloxane fluid emulsion, CN102241484A relates to the aquosity epoxy emulsion, the small molecules epoxy emulsion, polyaminoester emulsion, polyester or acrylic acid treating compound, CN102503184A relates to and contains Emulsion of UPR, epoxy resin latex, aqueous epoxy resins, modified epoxy, the treating compound of silane coupling agent, CN102503185A relate to and contain the modification amylose starch, the modification amylopectin, microcrystalline wax, hydrogenated vegetable fat, the quaternary ammonium salt cationic lubricant, sorbester p17, alkyl sulfonate surfactants, the treating compound of modified epoxy tackiness agent.Although the glass fibre strength ratio that adopts above treating compound to process is higher, their flame resistivity is not high, has limited their application in energy saving building.
About polyvinylidene dichloride class emulsion is carried out dip-coating for architectural to glass fibre, report is arranged seldom also at present.CN101367898 relates to the PVDC copolymer emulsion that makes with vinylidene chloride, esters of unsaturated fatty acids monomer, unsaturated fatty acids and perfluor esters of unsaturated fatty acids monomer, and CN1986583 relates to the acrylic ester monomer of vinylidene chloride, acrylate soft monomer, the water PVDC latex specially for painting special cloth that unsaturated fatty acids makes.The stability of emulsion of above-mentioned report is relatively poor and micelle is even not.
For technical problem set forth above, and have the characteristics of certain flame retardant resistance in conjunction with the polyvinylidene dichloride emulsion, the invention provides a kind of glass fibre lotion with polyvinylidene dichloride copolymer emulsion and its production and use.
Summary of the invention
In order to overcome above-mentioned deficiency, the invention provides a kind of glass fibre lotion polyvinylidene dichloride copolymer emulsion and its production and use, this copolymer emulsion good stability can be preserved more than 2 years, the latex particle good uniformity, and good airproof performance, special, the alkaline-resisting intensity of flame retardant resistance are high; The preparation method of this lotion is simple, the reaction times short.
The present invention adopts following technical scheme to realize above-mentioned purpose, and first purpose provides a kind of glass fibre lotion polyvinylidene dichloride copolymer emulsion, is made through seeded emulsion polymerization by following component, and the parts by weight of each component are 100 parts:
Monomer mixture 20-55 part comprises: account for mix monomer quality total amount 65-75% vinylidene chloride, account for the acrylate of mix monomer quality total amount 20-30% and account for the vinyl cyanide of mix monomer quality total amount 5-10%;
The seeding polymerization emulsifying agent comprises: 0.0225 part of Sodium dodecylbenzene sulfonate and OP-10 are 0.08 part;
Initiator comprises: 0.08 part of 0.08 part of organo-peroxide and sodium formaldehyde sulphoxylate;
Blending emulsifiers comprises: sodium laurylsulfonate 0.15-0.6 part and Sodium dodecylbenzene sulfonate 0.15-0.6 part;
Other auxiliary agents are an amount of;
PH adjusting agent is an amount of, and it is that potassium hydroxide or triethylamine are an amount of;
The deionized water residual content.
Described acrylate is one or more in methyl acrylate, ethyl propenoate, the butyl acrylate.
Described organo-peroxide is tertbutyl peroxide.
Described other auxiliary agents are ammonium acetate.
Another object of the present invention provides a kind of glass fibre lotion with the preparation method of polyvinylidene dichloride copolymer emulsion, adopts seed emulsion polymerization, and concrete steps are:
1. raw-material preparation:
A) preparation of mix monomer: vinylidene chloride 65-75%, acrylate 20-30%, vinyl cyanide 5-10% are mixed, stir 2h, make the monomer mixture of 20-55 part;
B) initiator preparation: 0.08 part of tertbutyl peroxide added to mix in 4 parts of the deionized waters make organo-peroxide solution; 0.08 part of sodium formaldehyde sulphoxylate added to mix in 4 parts of the deionized waters make sodium formaldehyde sulphoxylate solution;
C) blending emulsifiers preparation: will 0.3 part of sodium laurylsulfonate, 0.3 part of Sodium dodecylbenzene sulfonate adds in 4 parts of water and mix, add deionized water to 5 and part carry out cold dispersion 2h, make the mixing and emulsifying agent solution;
2. seeding polymerization
A) add 50 parts of deionized water or soft water in the reactor, add 0.0225 part of emulsifying agent Sodium dodecylbenzene sulfonate, OP-10 is 0.08 part, add 0.005 part of auxiliary agent ammonium acetate, the envelope still, gas displacement 3 times vacuumizes, suck 3% mix monomer, cold dispersion (stirring) 0.5h;
B) be warming up to 47 ℃, pump into initiator organo-peroxide solution, sodium formaldehyde sulphoxylate solution, pump into the speed of 8kg/24h, be warming up to 55 ℃ of constant temperature, when Pressure Drop during to 0.01-0.03MPa, seeding polymerization finishes, and obtains seed latex;
3. emulsion preparation
In seed latex, be continuously pumped into the blending emulsifiers for preparing, remaining mix monomer, added in 5-8 hour, when Pressure Drop to 0 ~-during 0.01MPa, reaction finishes, add the pH adjusting agent adjust pH to 5-6, add talcum powder, make polyvinylidene dichloride and the acrylate copolymer emulsion of solid content 20-55%.
A further object of the present invention provides the purposes that a kind of glass fibre lotion is used the polyvinylidene dichloride copolymer emulsion, and it is used for the glass fibre lotion.
The present invention also provides a kind of glass fibre lotion that adopts above-mentioned polyvinylidene dichloride copolymer emulsion to make.
The present invention also provides a kind of glass fibre that adopts the dip-coating of glass fibre lotion.
The testing method of gained emulsion property is as follows:
Solid content (%): GB1725-79;
Surface tension (mN/m): GB1725-79;
Viscosity (mPas): U.S. BROOKFIELD viscometer;
The accurate pH meter of pH value: PHS-3C;
Alkaline-resisting intensity: according to standard JG149-2003; Alkaline-resisting intensity can characterize with alkaline-resisting breaking strength retention B;
Flame retardant properties: V-0 level: after sample carried out twice combustion testings of 10 seconds, flame extinguished in 30 seconds, can not have combustionmaterial to fall down;
Stability of emulsion: the emulsion of preparation was placed 3 months, 6 months, 12 months, 24 months under 30 ℃, RH70%, observe the changing conditions of emulsion.
Monomer residue rate: according to standard GB/T5009.122-2003.
According to above-mentioned testing method, the performance index of measured emulsion are as follows:
Solid content (%): 20-55;
Surface tension (mN/m) :≤40
Viscosity (mPas) :≤10
PH value: 5-6
Density (g/cm
3): 1.23-1.26
Alkaline-resisting breaking strength retention (%): radially 〉=88, broadwise 〉=93;
Stability of emulsion: place 2 years not breakdowns of emulsion, precipitation do not occur;
Flame retardant resistance: reach the V-0 level.
Monomer residue rate after the emulsion coating: do not detect.
The present invention has following beneficial effect: the reaction times of the method for making of this polyvinylidene dichloride copolymer emulsion is short, only need 0.5 hour, polymerization process is safe, temperature, pressure is controlled easily, and gained good emulsion stability, preserve more than 2 years, emulsion is without precipitation, and emulsion was placed 45 days in 60 ℃ of baking ovens in addition, emulsion is breakdown of emulsion not, produces without precipitation in the emulsion; The particle good uniformity of latex, good airproof performance, flame retardant resistance meet the V-0 level, alkaline-resisting intensity is high.In the process with PVDC latex coated glass fiber, in order to improve the binding ability of latex and glass fibre, the heat treated temperature is 145 ℃, and 170-175 ℃ of the heat treated temperature during with respect to the benzene emulsion impregnated glass fiber has the effect that reduces energy consumption.
Description of drawings
Fig. 1. the glass fibre lotion polymerization technique schema of polyvinylidene dichloride copolymer emulsion.
Embodiment
Embodiment 1:
1. preparation of raw material: vinylidene chloride 70kg, butyl acrylate 30kg, vinyl cyanide 10kg are mixed, stir 2h, make mix monomer; Make tertbutyl peroxide solution with mixing among the tertbutyl peroxide 160g adding deionized water 8kg; Make sodium formaldehyde sulphoxylate solution with mixing among the sodium formaldehyde sulphoxylate 160g adding deionized water 8kg; Will sodium laurylsulfonate 600g, Sodium dodecylbenzene sulfonate 600g add in the 8kg water and mix, add deionized water and carry out cold dispersion 2h to 10kg, make the mixing and emulsifying agent solution;
2. seeding polymerization: add deionized water 100kg in reactor, add emulsifying agent Sodium dodecylbenzene sulfonate 45g, OP-10 is 160g, add auxiliary agent ammonium acetate 10g, tertbutyl peroxide 3g, the envelope still, gas displacement 3 times vacuumizes, suck 3% mix monomer, cold dispersion (stirring) 0.5h; Be warming up to 47 ℃, pump into initiator tertbutyl peroxide solution, sodium formaldehyde sulphoxylate solution, pump into the speed of 8kg/24h, be warming up to 55 ℃ of constant temperature, when Pressure Drop during to 0.01-0.03MPa, seeding polymerization finishes, and obtains seed latex;
3. letex polymerization: in seed latex, be continuously pumped into the blending emulsifiers for preparing, remaining mix monomer, added in 6 hours, when Pressure Drop to 0 ~-during 0.01MPa, reaction finishes, add potassium hydroxide adjust pH to 5, add talcum powder, make polyvinylidene dichloride and the acrylate copolymer emulsion of solid content 50%.
According to above-mentioned performance test methods, the performance index that record are as follows:
Solid content (%): 50;
Surface tension (mN/m): 38
Viscosity (mPas): 9
PH value: 5.5
Density (g/cm
3): 1.25
Alkaline-resisting breaking strength retention (%): radially 89, broadwise 94.
Embodiment 2:
1. preparation of raw material: vinylidene chloride 82.5kg, ethyl propenoate 27kg, vinyl cyanide 0.5kg are mixed, stir 2h, make mix monomer; Make tertbutyl peroxide solution with mixing among the tertbutyl peroxide 160g adding deionized water 8kg; Make sodium formaldehyde sulphoxylate solution with mixing among the sodium formaldehyde sulphoxylate 160g adding deionized water 8kg; Will sodium laurylsulfonate 600g, Sodium dodecylbenzene sulfonate 600g add in the 8kg water and mix, add deionized water and carry out cold dispersion 2h to 10kg, make the mixing and emulsifying agent solution;
2. seeding polymerization: in reactor, add deionized water or soft water 100kg, add emulsifying agent Sodium dodecylbenzene sulfonate 45g, OP-10 is 160g, adding auxiliary agent ammonium acetate 10g, tertbutyl peroxide 3g, the envelope still, gas displacement 3 times, vacuumize, suck 3% mix monomer, cold dispersion (stirring) 0.5h; Be warming up to 47 ℃, pump into initiator tertbutyl peroxide solution, sodium formaldehyde sulphoxylate solution, pump into the speed of 8kg/24h, be warming up to 55 ℃ of constant temperature, when Pressure Drop during to 0.01-0.03MPa, seeding polymerization finishes, and obtains seed latex;
3. letex polymerization: in seed latex, be continuously pumped into the blending emulsifiers for preparing, remaining mix monomer, added in 6 hours, when Pressure Drop to 0 ~-during 0.01MPa, reaction finishes, add triethylamine adjust pH to 5, add talcum powder, make polyvinylidene dichloride and the acrylate copolymer emulsion of solid content 55%.
Embodiment 3:
1. preparation of raw material: vinylidene chloride 26kg, methyl acrylate 12kg, vinyl cyanide 2kg are mixed, stir 2h, make mix monomer; Make tertbutyl peroxide solution with mixing among the tertbutyl peroxide 160g adding deionized water 8kg; Make sodium formaldehyde sulphoxylate solution with mixing among the sodium formaldehyde sulphoxylate 160g adding deionized water 8kg; Will sodium laurylsulfonate 600g, Sodium dodecylbenzene sulfonate 600g add in the 8kg water and mix, add deionized water and carry out cold dispersion 2h to 10kg, make the mixing and emulsifying agent solution;
2. seeding polymerization: in reactor, add deionized water or soft water 100kg, add emulsifying agent Sodium dodecylbenzene sulfonate 45g, OP-10 is 160g, adding auxiliary agent ammonium acetate 10g, tertbutyl peroxide 3g, the envelope still, gas displacement 3 times, vacuumize, suck 3% mix monomer, cold dispersion (stirring) 0.5h; Be warming up to 47 ℃, pump into initiator tertbutyl peroxide solution, sodium formaldehyde sulphoxylate solution, pump into the speed of 8kg/24h, be warming up to 55 ℃ of constant temperature, when Pressure Drop during to 0.01-0.03MPa, seeding polymerization finishes, and obtains seed latex;
3. letex polymerization: in seed latex, be continuously pumped into the blending emulsifiers for preparing, remaining mix monomer, added in 6 hours, when Pressure Drop to 0 ~-during 0.01MPa, reaction finishes, add potassium hydroxide adjust pH to 5, add talcum powder, make polyvinylidene dichloride and the acrylate copolymer emulsion of solid content 20%.
Claims (8)
1. a glass fibre lotion is with the preparation method of polyvinylidene dichloride copolymer emulsion, and it is characterized in that: this preparation method adopts seeded emulsion polymerization, and the umber of each raw material adopts parts by weight, and the concrete steps of this method for making are:
(1) raw-material preparation:
1) preparation of mix monomer: will account for the vinylidene chloride of the weight percent 65-75% of monomer total amount, the acrylate that accounts for the weight percent 20-30% of monomer total amount, the vinyl cyanide that accounts for the weight percent 5-10% of monomer total amount and mix, stir 2h, make the monomer mixture of 20-55 part;
2) initiator preparation: 0.08 part of organo-peroxide added to mix in 4 parts of the deionized waters make organo-peroxide solution; 0.08 part of sodium formaldehyde sulphoxylate added to mix in 4 parts of the deionized waters make sodium formaldehyde sulphoxylate solution;
3) blending emulsifiers preparation: will 0.3 part of sodium laurylsulfonate, 0.3 part of Sodium dodecylbenzene sulfonate adds in 4 parts of water and mix, add deionized water to 5 and part carry out cold dispersion 2h, make the mixing and emulsifying agent solution;
(2) seeding polymerization:
Add 50 parts of deionized water or soft water in the reactor, add 0.0225 part of emulsifying agent Sodium dodecylbenzene sulfonate, OP-10 is 0.08 part, add 0.005 part of auxiliary agent ammonium acetate, the envelope still passes into nitrogen and carries out gas displacement 3 times, and vacuumizes, suck 3% mix monomer, cold dispersion 0.5h; Be warming up to 47 ℃, pump into described initiator organo-peroxide solution, the sodium formaldehyde sulphoxylate solution for preparing, pump into the speed of 8kg/24h, be warming up to 55 ℃ of constant temperature, when Pressure Drop during to 0.01-0.03MPa, seeding polymerization finishes, and obtains seed latex;
(3) emulsion preparation:
In seed latex, be continuously pumped into the blending emulsifiers for preparing, remaining mix monomer, added in 6 hours, when Pressure Drop to 0 ~-during 0.01MPa, stop to add initiator, reaction finishes, add the pH adjusting agent adjust pH to 5-6, add talcum powder, make polyvinylidene dichloride and the acrylate copolymer emulsion of solid content 20-55%.
2. glass fibre lotion according to claim 1 is characterized in that with the preparation method of polyvinylidene dichloride copolymer emulsion: described acrylate be in methyl acrylate, ethyl propenoate, the butyl acrylate any one or multiple.
3. glass fibre lotion according to claim 1 and 2 is with the preparation method of polyvinylidene dichloride copolymer emulsion, and it is characterized in that: described acrylate is butyl acrylate.
4. glass fibre lotion according to claim 1 and 2 is with the preparation method of polyvinylidene dichloride copolymer emulsion, and it is characterized in that: described organo-peroxide is tertbutyl peroxide; Described pH adjusting agent is potassium hydroxide or triethylamine.
5. according to the polyvinylidene dichloride copolymer emulsion that is made with the preparation method of polyvinylidene dichloride copolymer emulsion by glass fibre lotion claimed in claim 1.
6. glass fibre lotion according to claim 5 is characterized in that: be used for the glass fibre lotion with the purposes of polyvinylidene dichloride copolymer emulsion.
7. the glass fibre lotion that makes with the polyvinylidene dichloride copolymer emulsion with glass fibre lotion according to claim 5.
8. with the glass fibre of glass fibre lotion according to claim 7 dip-coating.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| GB1460820A (en) * | 1973-04-06 | 1977-01-06 | Pennwalt Corp | Reinforced plastics laminates |
| JPH0214233A (en) * | 1988-07-01 | 1990-01-18 | Asahi Fiber Glass Co Ltd | Resin composition |
| CN1523164A (en) * | 2003-09-10 | 2004-08-25 | 东阳市野风塑胶有限公司 | Process for preparing disposable paper dinnerware latex paint and method of applying |
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| CN101186666A (en) * | 2007-11-19 | 2008-05-28 | 上海氯碱化工股份有限公司 | Method for preparing polyvinylidene chloride and acrylic ester copolymerization latex |
| CN101358054A (en) * | 2008-09-04 | 2009-02-04 | 葛飞雄 | High barrier food package coated membrane latexes by thermal sealing at low temperature and preparation method |
| CN101367898A (en) * | 2008-08-27 | 2009-02-18 | 浙江巨化股份有限公司电化厂 | PVDC copolymerization emulsion, preparation and uses thereof |
-
2012
- 2012-12-26 CN CN201210572941.3A patent/CN103044604B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1460820A (en) * | 1973-04-06 | 1977-01-06 | Pennwalt Corp | Reinforced plastics laminates |
| JPH0214233A (en) * | 1988-07-01 | 1990-01-18 | Asahi Fiber Glass Co Ltd | Resin composition |
| CN1523164A (en) * | 2003-09-10 | 2004-08-25 | 东阳市野风塑胶有限公司 | Process for preparing disposable paper dinnerware latex paint and method of applying |
| CN101033277A (en) * | 2007-03-27 | 2007-09-12 | 上海三爱富新材料股份有限公司 | Tetrafluoroethylene-propylene fluorine-containing elastic body and preparing method thereof |
| CN101186666A (en) * | 2007-11-19 | 2008-05-28 | 上海氯碱化工股份有限公司 | Method for preparing polyvinylidene chloride and acrylic ester copolymerization latex |
| CN101367898A (en) * | 2008-08-27 | 2009-02-18 | 浙江巨化股份有限公司电化厂 | PVDC copolymerization emulsion, preparation and uses thereof |
| CN101358054A (en) * | 2008-09-04 | 2009-02-04 | 葛飞雄 | High barrier food package coated membrane latexes by thermal sealing at low temperature and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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