CN105732878B - A kind of Structure of Core/shell Emulsion using PTFE as core and preparation method thereof - Google Patents
A kind of Structure of Core/shell Emulsion using PTFE as core and preparation method thereof Download PDFInfo
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- CN105732878B CN105732878B CN201610100068.6A CN201610100068A CN105732878B CN 105732878 B CN105732878 B CN 105732878B CN 201610100068 A CN201610100068 A CN 201610100068A CN 105732878 B CN105732878 B CN 105732878B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
Abstract
The invention discloses a kind of Structure of Core/shell Emulsion using PTFE as core and preparation method thereof, in equipped with constant pressure funnel, the three-neck flask of spherical condensation tube polytetrafluoroethyldispersion dispersion and deionized water are added according to mass parts, stir, heated in nitrogen atmosphere, obtain seed emulsion；Mix monomer is added dropwise by constant pressure funnel, according to mass parts monomer total amount：10~100 mass parts, are swelled, and then add initiator and trigger polymerization, react 24h, and filtering adjusts solution ph with ammoniacal liquor after cooling, obtains the Structure of Core/shell Emulsion using polytetrafluoroethylene (PTFE) as core.The emulsion coating of the present invention and the adhesive force grade of rubber surface can reach 4B, and adhesive force improves notable；The contact angle and water absorption rate test result of emulsion film show that its contact angle can reach 117.94 ° and water absorption rate low can arrive 9.62wt%, and comprehensive analysis show that the hydrophobicity of the latex film is preferable.
Description
Technical field
The invention belongs to technical field of polymer materials, more particularly to a kind of Structure of Core/shell Emulsion and its system using PTFE as core
Preparation Method.
Background technology
Polytetrafluoroethylene (PTFE) (PTFE) have heat-resisting, weatherability, resistant to chemical etching and small surface tension the features such as, mainly by
The bond energys of C-F keys in polytetrafluoroethylene (PTFE) is high and stably, and molecule is screw type configuration, and C-C main chains are completely larger by volume
Fluorine atom covers.Numerous studies show：PTFE is added in composite can make material show excellent heat resistance, chemically-resistant corruption
Corrosion and hydro-oleophobicity etc..Polytetrafluoroethylene (PTFE) is in modern architecture, perforated membrane, optics, microelectronics and waterproof material, ultralow electricity
The equal extensive application in the field such as dielectric material and coating.However, the compatibility of polytetrafluoroethylene (PTFE) and other high polymer materials and
Surface adhesion force is poor.It is the important channel for improving PTFE interface compatibilities that surface, which is modified, and method of modifying includes：Surface emissivity,
High-energy irradiation, surface grafting etc., but these methods are required to higher chemism or by high work input, modified technology
Cost is very high, it is difficult to realize industrialization.In order to improve the compatibility and adhesive force of polytetrafluoroethylene (PTFE) and other high polymer materials,
There is document to point out, using PTFE as core, using traditional polymer as shell, cladding PTFE prepares core-shell type complex particle
(J.Appl.Polym.Sci, 1998,68,185；Macromolecules 2009,42,3518-3524).Application No.
A kind of preparation method using PTFE latex particles as the core-shell polymer of seed of 201310730597.0 patent report, is used
Polytetrafluoroethyldispersion dispersion prepares seed emulsion and simultaneously carries out seeded emulsion polymerization with monomer, obtains stability and good dispersion
Structure of Core/shell Emulsion, but this method is conventional emulsion polymerization, is caused during emulsion film forming because emulsifying agent occurs migration
The performance of emulsion film is significantly reduced.
Existing polytetrafluoroethylmodified modified method can not effectively improve the adhesive force of tetrafluoroethene coating and rubber surface.
The content of the invention
It is an object of the invention to provide a kind of Structure of Core/shell Emulsion using PTFE as core and preparation method thereof, it is intended to effectively
The problem of adhesive force of improvement tetrafluoroethene coating and rubber surface.
The present invention is achieved in that a kind of preparation method using PTFE as the Structure of Core/shell Emulsion of core, described with polytetrafluoro
Ethene comprises the following steps for the preparation method of the Structure of Core/shell Emulsion of core：
Polytetrafluoroethylene (PTFE) is added in equipped with constant pressure funnel, the three-neck flask of spherical condensation tube according to mass parts to disperse
Liquid：0~100 mass parts and deionized water：50~900 mass parts, stir, and are heated in nitrogen atmosphere, obtain seed breast
Liquid；
Mix monomer is added dropwise by the low liquid funnel 1 of constant pressure, according to mass parts monomer total amount：10~100 mass parts, are swelled,
Then the initiator for adding the mass parts of initiator 0.01~3 triggers polymerization, reacts, and filtering adjusts pH value of solution after cooling with ammoniacal liquor
Value, obtains the Structure of Core/shell Emulsion using polytetrafluoroethylene (PTFE) as core.
Further, it is described to stir, rotating speed be 250~400rpm, be heated in nitrogen atmosphere reaction temperature 70~
90 DEG C, obtain seed emulsion.
Further, it is described to be swelled 5~20min, then add the mass parts initiator of initiator 0.01~3 and trigger polymerization, instead
Answer 24h.
Further, solution ph is adjusted to 7~8 with ammoniacal liquor after the cooling.
It is a kind of described using PTFE as the preparation of the preparation method of the Structure of Core/shell Emulsion of core another object of the present invention is to provide
The Structure of Core/shell Emulsion using polytetrafluoroethylene (PTFE) as core, the Structure of Core/shell Emulsion using polytetrafluoroethylene (PTFE) as core includes according to mass parts：It is poly-
Tetrafluoroethene dispersion liquid：0~100 mass parts；Monomer total amount：10~100 mass parts；Deionized water：50~900 mass parts；Draw
Send out agent：0.01~3 mass parts.
Further, the mix monomer is made up of soft monomer and hard monomer, and soft, hard monomer is with 1: 0.5~1: 2 mass ratio
Mixed.
Further, the soft monomer is one kind in butyl acrylate, ethyl acrylate, Isooctyl acrylate monomer；Hard monomer
For one kind in methyl methacrylate, styrene, acrylonitrile, methyl acrylate, vinylacetate.
Further, the initiator be potassium peroxydisulfate, ammonium persulfate, sodium peroxydisulfate, azodiisobutyronitrile, ammonium persulfate or
Potassium and one kind in sodium hydrogensulfite or ammonium redox system.
Another object of the present invention is to provide a kind of described used using the preparation method of PTFE as the Structure of Core/shell Emulsion of core
Reaction unit, the reaction unit includes：Constant pressure funnel, spherical condensation tube, three-neck flask, agitating paddle, heating water bath；
The constant pressure funnel and spherical condensation tube are arranged on the both sides of three-neck flask, and the centre of three-neck flask, which is equipped with, to be stirred
Oar is mixed, three-neck flask is placed in heating water bath.
The present invention uses the semicontinuous method for being swelled Soap free cationic emulision to prepare the Structure of Core/shell Emulsion using PTFE as core,
According to the ASTM D3359-02 standard testings emulsion coating and rubber surface adhesive force grade, the emulsion coating adhesive force is found
Grade can reach 4B, and adhesive force improves notable；The contact angle and water absorption rate test result of emulsion film show, its contact angle can be with
Reach 117.94 ° and water absorption rate low can arrive 9.62wt%, comprehensive analysis show that the hydrophobicity of the latex film is preferable.Institute of the present invention
The method convenient and efficient of proposition, the emulsion high conversion rate of preparation, while the adverse effect that emulsifying agent is brought to product is avoided, can
To obtain the pure latex particle that monodispersity is good.The combination property of the Structure of Core/shell Emulsion and latex film is protruded, and is contributed to
Further expand the application field of polytetrafluoroethylene (PTFE).The present invention proposes a kind of using PTFE as the preparation side of the Structure of Core/shell Emulsion of core
Method, by the selection to shell polymerized monomer and the regulation and control of soft hard monomer ratio, effectively improves the attachment of PTFE and rubber
Power, is that polytetrafluoroethylene (PTFE) opens broader practice prospect with rubber combined, simultaneously for the application in terms of expansion fluoro coatings
It is significant.Various embodiments of the present invention can successfully be prepared by the semicontinuous Soap free cationic emulision method that is swelled
Using PTFE as the Structure of Core/shell Emulsion of core, and the adhesive force grade of the emulsion coating and rubber is high, and the content for increasing PTFE can be with
Each combination property of the emulsion film is improved, such as hydrophobicity and heat resistance can expand PTFE in building, chemical industry, electric appliance and electronic
Industry, mechanical industry, aerospace industries, the extensive use of the every field of household supplies.
Brief description of the drawings
Fig. 1 is the preparation method flow chart provided in an embodiment of the present invention using PTFE as the Structure of Core/shell Emulsion of core.
Fig. 2 is the reaction unit schematic diagram provided in an embodiment of the present invention using PTFE as the Structure of Core/shell Emulsion of core；
In figure：1st, constant pressure funnel；2nd, spherical condensation tube；3rd, three-neck flask；4th, agitating paddle；5th, heating water bath.
Fig. 3 is the building-up process schematic diagram provided in an embodiment of the present invention using PTFE as the Structure of Core/shell Emulsion of core.
Fig. 4 is the Structure of Core/shell Emulsion grain structure schematic diagram provided in an embodiment of the present invention using PTFE as core.
Fig. 5 is the transmission electron microscope picture of the emulsion particle of embodiment 1 provided in an embodiment of the present invention.
Fig. 6 is the transmission electron microscope picture of the emulsion particle of embodiment 2 provided in an embodiment of the present invention.
Fig. 7 is the transmission electron microscope picture of the emulsion particle of embodiment 3 provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is explained in detail below in conjunction with the accompanying drawings.
The Structure of Core/shell Emulsion using PTFE as core of the embodiment of the present invention includes according to mass parts：Polytetrafluoroethyldispersion dispersion：0
~100 mass parts；Monomer total amount：10~100 mass parts；Deionized water：50~900 mass parts；Initiator：0.01~3 mass
Part.
The mix monomer is made up of soft monomer and hard monomer, and soft, hard monomer is mixed with 1: 0.5~1: 2 mass ratio
Close；Soft monomer is one kind in butyl acrylate, ethyl acrylate, Isooctyl acrylate monomer；Hard monomer be methyl methacrylate,
One kind in styrene, acrylonitrile, methyl acrylate, vinylacetate.
The initiator is potassium peroxydisulfate, ammonium persulfate, sodium peroxydisulfate, azodiisobutyronitrile, ammonium persulfate or potassium and Asia
One kind in niter cake or ammonium redox system.
As shown in figure 1, the preparation method using PTFE as the Structure of Core/shell Emulsion of core of the embodiment of the present invention comprises the following steps：
S101：The preparation of seed emulsion：In equipped with constant pressure funnel 1, the three-neck flask 3 of spherical condensation tube 2 according to
Mass parts add polytetrafluoroethyldispersion dispersion：0~100 mass parts and deionized water：50~900 mass parts, stir, rotating speed
For 250~400rpm, 70~90 DEG C of reaction temperature is heated in nitrogen atmosphere, seed emulsion is obtained；
S102：Using polytetrafluoroethylene (PTFE) as the preparation of the Structure of Core/shell Emulsion of core：Mixing is added dropwise by the low liquid funnel 1 of constant pressure single
Body, according to mass parts monomer total amount：10~100 mass parts, are swelled 5~20min, then add the mass parts of initiator 0.01~3
Initiator trigger polymerization, react 24h, filtering adjusts solution ph to 7~8 with ammoniacal liquor after cooling, obtained with polytetrafluoroethylene (PTFE)
For the Structure of Core/shell Emulsion of core.
As shown in Fig. 2 the reaction unit using PTFE as the Structure of Core/shell Emulsion of core of the embodiment of the present invention mainly includes：Constant pressure
Dropping funel 1, spherical condensation tube 2, three-neck flask 3, agitating paddle 4, heating water bath 5.
Constant pressure funnel 1 and spherical condensation tube 2 are arranged on the both sides of three-neck flask 3, and the centre of three-neck flask 3, which is equipped with, to be stirred
Oar 4 is mixed, three-neck flask 3 is placed in heating water bath 5.
The application principle of the present invention is explained in detail with reference to specific embodiment.
The polytetrafluoroethyldispersion dispersion trade mark used in following case is DF-302.
Embodiment 1：
12g polytetrafluoroethyldispersion dispersions (particle diameter 240nm, solid content 57wt%) and 120g deionized waters are taken in 250ml tri-
It is well mixed in neck flask 3, mixing speed is 300rpm, while being passed through nitrogen, is heated to 75 DEG C of reaction temperature, obtains seed breast
Liquid；Each 8g of MMA and BA are taken, mix monomer is constituted, is added drop-wise in three-neck flask 3, is dripped off in 30min by constant pressure funnel 1,
15min is swelled, potassium persulfate solution (0.12g KPS are dissolved in 10g deionized waters) is added and triggers polymerization, 24h, reaction is reacted
After the completion of with 100 mesh nylon net filters, adjust solution ph to 7~8 with ammoniacal liquor after cooling, hud typed PTFE-P (MMA- be made
BA) emulsion.
Fig. 5 is TEM figure of the emulsion particle of embodiment 1 after phosphotungstic acid is dyed, it can be clearly seen that the emulsion
Grain has core shell structure, and wherein black portions are PTFE cores, and light-colored part is P (MMA-BA) shell, and emulsion particle size is homogeneous,
PTFE particles are wrapped by completely.Table 1 is the composition and ratio and adhesive force grade of the Structure of Core/shell Emulsion glued membrane using PTFE as core
Test result.With reference to Fig. 5 and table 1 as can be seen that embodiment 1 has successfully prepared hud typed PTFE-P (MMA-BA) emulsion, and
And the adhesive force grade of the emulsion coating and nitrile rubber (NBR) reaches 4B, illustrates that adhesive force is good.Table 2 is hud typed PTFE-P
(MMA-BA) contact angle and water absorption rate of emulsion film are with PTFE changes of contents relations, with the increase of PTFE contents, emulsion glue
The contact angle increase of film, water absorption rate reduces, and illustrates that the hydrophobicity of the emulsion film is improved with the increase of PTFE contents.
Embodiment 2：
12g polytetrafluoroethyldispersion dispersions (particle diameter 240nm, solid content 57wt%) and 120g deionized waters are taken in 250ml tri-
It is well mixed in neck flask 3, mixing speed is 300rpm, while being passed through nitrogen, is heated to 75 DEG C of reaction temperature, obtains seed breast
Liquid；Take 8.7g MMA and 7.3g BA to constitute mix monomer, be added drop-wise to by constant pressure funnel 1 in three-neck flask 3, in 30min
Drip off, be swelled 15min, add potassium persulfate solution (0.12g KPS are dissolved in 10g deionized waters) and trigger polymerization, reaction
24h, with 100 mesh nylon net filters after the completion of reaction, adjusts solution ph to 7~8 with ammoniacal liquor after cooling, is made hud typed
PTFE-P (MMA-BA) emulsion.
Fig. 6 is TEM figure of the emulsion particle of embodiment 2 after phosphotungstic acid is dyed, it can be clearly seen that the emulsion
Grain has core shell structure, and wherein black portions are PTFE cores, and light-colored part is P (MMA-BA) shell, and emulsion particle size is homogeneous,
PTFE particles are wrapped by completely.With reference to Fig. 6 and table 1 it is apparent that embodiment 2 successfully prepares hud typed PTFE-P
(MMA-BA) emulsion, and the adhesive force grade of the emulsion coating and nitrile rubber (NBR) reaches 3B, illustrates that adhesive force is good.
Embodiment 3：
12g polytetrafluoroethyldispersion dispersions (particle diameter 240nm, solid content 57wt%) and 120g deionized waters are taken in 250ml tri-
It is well mixed in neck flask 3, mixing speed is 300rpm, while being passed through nitrogen, is heated to 75 DEG C of reaction temperature, obtains seed breast
Liquid；Take 7.3g styrene (St) and 8.7g butyl acrylates (BA) to constitute mix monomer, three are added drop-wise to by constant pressure funnel 1
In neck flask 3, dripped off in 30min, be swelled 15min, adding potassium persulfate solution, (0.24g KPS are dissolved in 10g deionized waters
In) trigger polymerization, react 24h, with 100 mesh nylon net filters after the completion of reaction, after cooling with ammoniacal liquor regulation solution ph to 7~
8, hud typed PTFE-P (St-BA) emulsion is made.
Fig. 7 is TEM figure of the emulsion particle of embodiment 3 after phosphotungstic acid is dyed, it can be seen that emulsion particle size is equal
One, PTFE particle are wrapped by completely.With reference to Fig. 7 and table 1 it is apparent that embodiment 3 successfully prepared it is hud typed
PTFE-P (St-BA) emulsion, and the adhesive force grade of the emulsion coating and nitrile rubber (NBR) reaches 4B, illustrates adhesive force
It is good.
The adhesive force grade of Structure of Core/shell Emulsion glued membrane of the table 1 using PTFE as core
| Sample | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Polytetrafluoroethylene teflon soliquoid | 12g | 12g | 12g |
| Methyl methacrylate | 8.0g | 8.7g | 0 |
| Butyl acrylate | 8.0g | 7.3g | 8.7g |
| Styrene | 0 | 0 | 7.3g |
| Soft or hard monomer ratio | 1∶1 | 1∶1.2 | 1.2∶1 |
| Adhesive force grade | 4B | 3B | 4B |
Note：Adhesive force tests establishing criteria ASTM D3359-02,25 DEG C, 1atm.
The contact angle and water absorption rate of table 2 hud typed PTFE-P (MMA-BA) emulsion film
| Sample | PTFE weight/mass percentage compositions (%) | Contact angle (°) | Water absorption rate (%) |
| S1 | 0 | 79.7° | 40.0% |
| S2 | 10% | 83.5° | 25.7% |
| S3 | 20% | 84.6° | 28.2% |
| S4 | 30% | 92.6° | 19.4% |
| S5 | 40% | 95.9° | 20.0% |
| S6 | 50% | 102.4° | 9.2% |
| S7 | 60% | 117.9° | 9.6% |
Note：25 DEG C of contact angle test condition, 1atm.
Can be seen that various embodiments of the present invention with reference to table 1, table 2 and Fig. 5-Fig. 7 can be swelled no soap by semicontinuous
Seeded emulsion polymerization method successfully prepares the Structure of Core/shell Emulsion using PTFE as core, and the emulsion coating is in the surface attachment of rubber
Power grade is high, and increase PTFE content can improve the hydrophobicity of the emulsion film, can expand polytetrafluoroethylene (PTFE) and be led in coating
The extensive use in domain.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (8)
1. a kind of preparation method using polytetrafluoroethylene (PTFE) as the Structure of Core/shell Emulsion of core, it is characterised in that described with polytetrafluoroethylene (PTFE)
Preparation method for the Structure of Core/shell Emulsion of core comprises the following steps：
The preparation of seed emulsion：Add and gather according to mass parts in equipped with constant pressure funnel, the three-neck flask of spherical condensation tube
Tetrafluoroethene dispersion liquid：0~100 mass parts and deionized water：50~900 mass parts, stir, and add in nitrogen atmosphere
Heat, obtains seed emulsion；
Using polytetrafluoroethylene (PTFE) as the preparation of the Structure of Core/shell Emulsion of core：Mix monomer is added dropwise by the low liquid funnel of constant pressure, according to quality
Part mix monomer total amount：10~100 mass parts, are swelled, and the solution for then adding the mass parts of initiator 0.01~3 triggers polymerization,
Solution ph is adjusted with ammoniacal liquor after reaction, filtering, cooling, the Structure of Core/shell Emulsion using polytetrafluoroethylene (PTFE) as core is obtained.
2. as claimed in claim 1 using polytetrafluoroethylene (PTFE) as the preparation method of the Structure of Core/shell Emulsion of core, it is characterised in that described
Stir, rotating speed is 250~400rpm, 70~90 DEG C of reaction temperature is heated in nitrogen atmosphere, obtain seed emulsion.
3. as claimed in claim 1 using polytetrafluoroethylene (PTFE) as the preparation method of the Structure of Core/shell Emulsion of core, it is characterised in that described
5~20min is swelled, the initiator for then adding 0.01~3 mass parts triggers polymerization, reacts 24h.
4. as claimed in claim 1 using polytetrafluoroethylene (PTFE) as the preparation method of the Structure of Core/shell Emulsion of core, it is characterised in that described
Solution ph is adjusted to 7~8 with ammoniacal liquor after cooling.
5. it is a kind of as claimed in claim 1 using polytetrafluoroethylene (PTFE) be the preparation method of the Structure of Core/shell Emulsion of core prepare with polytetrafluoro
Ethene is the Structure of Core/shell Emulsion of core, it is characterised in that the Structure of Core/shell Emulsion using polytetrafluoroethylene (PTFE) as core is according to mass parts bag
Include：Polytetrafluoroethyldispersion dispersion：0~100 mass parts；Monomer total amount：10~100 mass parts；Deionized water：50~900 mass
Part；Initiator：0.01~3 mass parts.
6. as claimed in claim 5 using polytetrafluoroethylene (PTFE) as the Structure of Core/shell Emulsion of core, it is characterised in that the monomer is by soft list
Body and hard monomer composition, soft, hard monomer is with 1:0.5~1:2 mass ratio is mixed.
7. as claimed in claim 6 using polytetrafluoroethylene (PTFE) as the Structure of Core/shell Emulsion of core, it is characterised in that the soft monomer is third
One kind in olefin(e) acid butyl ester, ethyl acrylate, Isooctyl acrylate monomer；Hard monomer is methyl methacrylate, styrene, propylene
One kind in nitrile, methyl acrylate, vinylacetate.
8. as claimed in claim 5 using polytetrafluoroethylene (PTFE) as the Structure of Core/shell Emulsion of core, it is characterised in that the initiator was
Potassium sulfate, ammonium persulfate, sodium peroxydisulfate, azodiisobutyronitrile, ammonium persulfate or potassium and sodium hydrogensulfite or ammonium redox body
One kind in system.
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| CN108047374B (en) * | 2018-01-23 | 2020-05-26 | 河北工业大学 | Preparation method of polytetrafluoroethylene/polyacrylate core-shell emulsion for pressure-sensitive adhesive |
| CN110183580A (en) * | 2019-05-16 | 2019-08-30 | 北京点域科技有限公司 | A kind of non-sticky type coating and preparation method thereof |
| CN110743473B (en) * | 2019-10-22 | 2021-05-04 | 中国科学院兰州化学物理研究所 | Preparation method of polytetrafluoroethylene @ phenolic resin core-shell composite particles |
| CN111286047B (en) * | 2020-02-14 | 2021-05-04 | 中国科学院兰州化学物理研究所 | Polytetrafluoroethylene-based core-shell nanocomposite and preparation method and application thereof |
| CN112062979B (en) * | 2020-09-07 | 2022-04-19 | 清华大学 | Organic-inorganic core-shell structure self-lubricating composite material and preparation method thereof |
| CN112280062B (en) * | 2020-10-15 | 2022-07-19 | 中海石油(中国)有限公司湛江分公司 | Hydrophobic low-density high-strength polystyrene microsphere and preparation method thereof |
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| US8202955B2 (en) * | 2006-07-06 | 2012-06-19 | Daikin Industries, Ltd. | Aqueous fluorine-containing polymer dispersion |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1709966A (en) * | 2005-07-18 | 2005-12-21 | 李兴明 | Water-based fluororesin, and its preparing method and use for coating |
| CN101104659A (en) * | 2007-05-24 | 2008-01-16 | 吉林大学 | Method for preparing non-soap fluorine-containing polyacrylate core-shell emulsion with crosslinking network structure |
| CN101434674A (en) * | 2007-11-12 | 2009-05-20 | 上海博泰氟材料有限公司 | Fluorine-containing water-dilutable resin prepared by nucleocapsid emulsion multicomponent copolymerization and coating thereof |
| CN103755862A (en) * | 2013-12-14 | 2014-04-30 | 衢州市中通化工有限公司 | Preparation method of core-shell polymer using polytetrafluoroethylene emulsion particles as seeds |
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