CN104031346A - Modified polypropylene wax-polytetrafluoroethylene composition - Google Patents
Modified polypropylene wax-polytetrafluoroethylene composition Download PDFInfo
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- CN104031346A CN104031346A CN201410290631.1A CN201410290631A CN104031346A CN 104031346 A CN104031346 A CN 104031346A CN 201410290631 A CN201410290631 A CN 201410290631A CN 104031346 A CN104031346 A CN 104031346A
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- modified polypropylene
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- -1 polypropylene Polymers 0.000 title claims abstract description 33
- 239000004743 Polypropylene Substances 0.000 title claims abstract description 29
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 29
- 239000000203 mixture Substances 0.000 title claims abstract description 24
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000003999 initiator Substances 0.000 claims abstract description 10
- 239000001993 wax Substances 0.000 claims description 38
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 claims description 10
- 229940094989 trimethylsilane Drugs 0.000 claims description 10
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 9
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000003995 emulsifying agent Substances 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 9
- 239000002270 dispersing agent Substances 0.000 abstract description 4
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- DEQJNIVTRAWAMD-UHFFFAOYSA-N 1,1,2,4,4,4-hexafluorobutyl prop-2-enoate Chemical compound FC(F)(F)CC(F)C(F)(F)OC(=O)C=C DEQJNIVTRAWAMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 abstract 1
- XGPXKYJNRNGJPY-UHFFFAOYSA-N trimethyl(pent-4-enoxy)silane Chemical compound C[Si](C)(C)OCCCC=C XGPXKYJNRNGJPY-UHFFFAOYSA-N 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002966 varnish Substances 0.000 description 4
- LTPSRQRIPCVMKQ-UHFFFAOYSA-N 2-amino-5-methylbenzenesulfonic acid Chemical compound CC1=CC=C(N)C(S(O)(=O)=O)=C1 LTPSRQRIPCVMKQ-UHFFFAOYSA-N 0.000 description 3
- 102100027370 Parathymosin Human genes 0.000 description 3
- 239000004159 Potassium persulphate Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 description 3
- 229940063953 ammonium lauryl sulfate Drugs 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 3
- 235000019394 potassium persulphate Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000000020 Nitrocellulose Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000012874 anionic emulsifier Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007334 copolymerization reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229920001220 nitrocellulos Polymers 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- HEBRGEBJCIKEKX-UHFFFAOYSA-M sodium;2-hexadecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCCCCCC1=CC=CC=C1S([O-])(=O)=O HEBRGEBJCIKEKX-UHFFFAOYSA-M 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- NLOLSXYRJFEOTA-UPHRSURJSA-N (z)-1,1,1,4,4,4-hexafluorobut-2-ene Chemical compound FC(F)(F)\C=C/C(F)(F)F NLOLSXYRJFEOTA-UPHRSURJSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004160 Ammonium persulphate Substances 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229920013701 VORANOL™ Polymers 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 235000019395 ammonium persulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- SNGREZUHAYWORS-UHFFFAOYSA-N perfluorooctanoic acid Chemical compound OC(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F SNGREZUHAYWORS-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- VVWRJUBEIPHGQF-UHFFFAOYSA-N propan-2-yl n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)N=NC(=O)OC(C)C VVWRJUBEIPHGQF-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003655 tactile properties Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Graft Or Block Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a modified polypropylene wax-polytetrafluoroethylene composition which is prepared by the following steps: adding pure water and a polymerization inhibitor into a reaction kettle, adding certain amounts of dispersing agent, initiator, polypropylene wax, hexafluorobutyl acrylate and 4-pentenyloxytrimethyl silane (PTMS), heating to reaction temperature, reacting to obtain surface-polymerized polypropylene wax powder, mixing with polytetrafluoroethylene (PTFE) powder, and grinding and crushing in a grinding machine to obtain the composition.
Description
Technical field
The present invention relates to a kind of preparation method of blended wax, particularly the composition and method of making the same of a kind of modified polypropylene waxes and tetrafluoroethylene.
Background technology
The wax that uses at present fine dispersion in the binder system of all routines is mechanics resistibility and the generation extinction effect improving for giving paint film.Improved scratch resistance and wear resistance by the interpolation of wax, simultaneously due to the diffuse scattering of incident light on the Wax particles of fine dispersion, coating surface obtains dumb light outward appearance.In addition, the interpolation of wax causes painting effective dispersion of pigment and has reduced their sedimentation tendency.Wax has improved sliding and has advantageously affected the tactile properties of paint film.Can optimize the rheological behavior of binder system by wax.In powder coating, the raising of throughput when wax causes producing in forcing machine, and be effective as degassed supplementary means.
CN102227450 discloses the purposes of a kind of multipolymer as the additive for paint vehicle; comprise the copolymerization wax of fine dispersion; it is especially suitable as the additive for paint vehicle; it reacts with unsaturated polycarboxylic acid or its acid anhydrides by the long-chain olefin that makes chain length scope be more than or equal to 28 C atoms under the existence of at least one radical initiator, and carries out granulating and prepare by grinding or spraying subsequently.
CN101469148 discloses a kind of fluorine-containing polymer dispersant for water paint.It is taking vinylformic acid hexafluoro butyl ester, vinylformic acid, methyl methacrylate, as polymerization single polymerization monomer, Diisopropyl azodicarboxylate is initiator, and Virahol is solvent, and sodium hydroxide is neutralizing agent, adopt free radical polymerization process, prepare a kind of fluorine-containing polymer dispersant for water paint.
Existing known technology all has complicated components, and cost is high, and between high molecular polymer, consistency is poor, mixes the shortcomings such as inhomogeneous, has affected the result of use in full scale plant.
Summary of the invention
For the deficiencies in the prior art, the invention provides the composition of a kind of modified polypropylene waxes and tetrafluoroethylene.
In reactor, squeeze into pure water, stopper, add a certain amount of dispersion agent, initiator, Poly Propylene Wax, vinylformic acid hexafluoro butyl ester, 4-amylene oxygen base trimethyl silane (PTMS), is warming up to temperature of reaction, and question response finishes, obtain the Poly Propylene Wax powder of surface aggregate, then mix with polytetrafluoroethylene PTFE powder, in pulverizing mill, grind fragmentation, obtain this patent product.
The present invention introduces the vinylformic acid hexafluoro butyl ester of the two keys of a small amount of band and contains oxygen monomer 4-amylene oxygen base trimethyl silane (PTMS) as comonomer on Poly Propylene Wax particle surface, carry out surface modification, as by with oxygen containing monomer-grafted or copolymerization, can improve the consistency of Poly Propylene Wax and PTFE polymkeric substance.
The invention provides the composition of a kind of modified polypropylene waxes and tetrafluoroethylene, realize by following steps: the preparation of step 1. water
By weight, add 1000 parts of water in reactor, 0.5-3 part emulsifying agent (preferably 2 parts), stirs;
The preparation of step 2. oil phase
By weight, by 100 parts of Poly Propylene Waxes, 0.5-3 part (preferably 1.5 parts) 4-amylene oxygen base trimethyl silane monomer mixes, add again 0.05-0.1 part initiator (preferably 0.5 part), add 0.5-3 part (preferably 1.5 parts) vinylformic acid hexafluoro butyl ester, stir.
Step 3. polyreaction
The oil-phase solution that step 2 is prepared is added in step 1 and is equipped with in the autoclave of preparing water, then from 70-100 DEG C (preferably 90 DEG C) reaction 8-20h (preferably 10h), reaction finishes rear blowing, and washing microballoon is limpid to water, obtains product.
Step 4. blend is pulverized
75-90 part step 3 is obtained to the Poly Propylene Wax powder of surface modification, then mix with 10-25 part PTFE powder, in pulverizing mill, grind fragmentation, obtain this patent product.
Described chemical dispersant comprises anionic emulsifier, is any one in chain alkyl type anionic emulsifier, Perfluorocaprylic Acid sylvite or the ammonium salts such as ammonium lauryl sulfate, Sodium dodecylbenzene sulfonate, hexadecyl benzene sulfonic acid sodium salt, B-53, Voranol EP 2001 sodium sulfate and paraffinic hydrocarbons sodium sulfonate and the pungent sulfonate sodium of perfluor alkane or ammonium salt.Preferably ammonium lauryl sulfate.
The preferred Potassium Persulphate of described initiator, ammonium persulphate.
Described pulverizing mill can be used to preparation/mixed powder or other materials, and described equipment can comprise, without limitation, for example: multiple agitator, comprise revolving stirrer, and multiple pulverizing mill, comprise ball mill, electromagnetic ball grinding machine, disc flour mill, needle mill, high energy impact shredder, stream energy impact mill, reversal nozzle jet mill, fluidised-bed spray grinding machine, beater grinder, tumbling mill, mechanic diffusion handler, or impact mill.In described pulverizing mill, at a high speed and high strength can be employed or be applied on dry powder material, to realize high-shear or HI high impact is applied to dry powder material, be preferably fluidised-bed spray grinding machine.For commercially available prod, as the product of Mianyang Liuneng Powder Equipment Co., Ltd.'s production.
Described vinylformic acid hexafluoro butyl ester is commercially available prod, as the product of Yancheng City Mai Dike chemical Manufacturing Co., Ltd production.
Described 4-amylene oxygen base trimethyl silane is commercially available prod, the product that as above the graceful bio tech ltd of Hypon produces.
Described Poly Propylene Wax is commercially available prod, as the product of Shanghai Yi Bikai Chemical Co., Ltd. production.
Beneficial effect of the present invention:
Poly Propylene Wax carries out surface aggregate modification through vinylformic acid hexafluoro butyl ester with containing oxygen monomer 4-amylene oxygen base trimethyl silane (PTMS), has improved and the consistency of tetrafluoroethylene, can be being pulverized and mixed contact fully in process, and dispersion more even.Be conducive in blend to improve the bonding force with ptfe micropowder; For water-based or alcohol dissolubility (polar solvent system) coating system, can increase substantially the slipping of coating, due to acrylic resin, urethane resin, Synolac, epoxy resin, Vinylite, nitrocellulose resin etc. can be compatible, so can be widely used in all kinds water-borne coatings or alcohol soluble paint.
Embodiment
Following examples are only to further illustrate the present invention, are not restriction the scope of protection of the invention.
The invention provides the composition of a kind of modified polypropylene waxes and tetrafluoroethylene, realize by following steps:
Embodiment 1
The preparation of step 1. water
In in 2000L reactor, add 1000Kg water, 2Kg B-53, stirs.
The preparation of step 2. oil phase
In 200L reactor, by 100Kg Poly Propylene Wax, 1.5Kg4-amylene oxygen base trimethyl silane monomer, adds 1.5Kg vinylformic acid hexafluoro butyl ester to mix, then adds 0.08Kg Potassium Persulphate initiator, stirs.Step 3. polyreaction
The oil-phase solution that step 2 is prepared is added in step 1 and is equipped with in the reactor of preparing water, and then, from 90 DEG C of reaction 14h, reaction finishes rear blowing, and washing microballoon is limpid to water, obtains product.
Step 4. blend is pulverized
83Kg step 3 is obtained to the polyethylene wax powder of surface grafting, then mix with 17KgPTFE powder, in fluidised-bed spray grinding machine, grind fragmentation, obtain this patent product.Be numbered SX-1.
Embodiment 2
The preparation of step 1. water
In in 2000L autoclave, add 1000Kg water, 0.5Kg ammonium lauryl sulfate, stirs.
The preparation of step 2. oil phase
In 200L reactor, by 100Kg Poly Propylene Wax, 0.5Kg4-amylene oxygen base trimethyl silane monomer, adds 0.SKg vinylformic acid hexafluoro butyl ester monomer to mix, then adds 0.05Kg Potassium Persulphate initiator, stirs.
Step 3. polyreaction
The oil-phase solution that step 2 is prepared is added in step 1 and is equipped with in the reactor of preparing water, passes into 0.5Kg cis-1,1,1,4,4,4-hexafluoro-2-butene gas, and then, from 70 DEG C of reaction 20h, reaction finishes rear blowing, and washing microballoon is limpid to water, obtains product.
Step 4. blend is pulverized
75Kg step 3 is obtained to the Poly Propylene Wax powder of surface grafting, then mix with 25KgPTFE powder, in fluidised-bed spray grinding machine, grind fragmentation, obtain this patent product.Be numbered SX-2.
Embodiment 3
The preparation of step 1. water
In in 2000L autoclave, add 1000Kg water, 3Kg hexadecyl benzene sulfonic acid sodium salt, stirs.
The preparation of step 2. oil phase
In 200L reactor, by 100Kg Poly Propylene Wax, 3Kg4-amylene oxygen base trimethyl silane monomer, adds 3 parts of vinylformic acid hexafluoro butyl ester monomers to mix, then adds 0.1Kg ammonium persulfate initiator, stirs.Step 3. polyreaction
The oil-phase solution that step 2 is prepared is added in step 1 and is equipped with in the reactor of preparing water, and then, from 100 DEG C of reaction 10h, reaction finishes rear blowing, and washing microballoon is limpid to water, obtains product.
Step 4. blend is pulverized
90Kg step 3 is obtained to the Poly Propylene Wax powder of surface grafting, then mix with 10KgPTFE powder, in fluidised-bed spray grinding machine, grind fragmentation, obtain this patent product.Be numbered SX-3.
Comparative example 1
Poly Propylene Wax powder does not carry out grafting, only carries out the blend of step 4, does not carry out the reaction of step 1-3, the other the same as in Example 1.Products obtained therefrom is numbered SX-4.
Embodiment 4
The micro mist wax making in embodiment 1-3 and comparative example 1 is the object for delustring and slip to the introducing in nitrocellulose standard varnish: by dissolver, by disperseing the NC varnish neutralization of 2wt% micro mist wax being introduced to 98wt% then to use framework applicator to be drawn to (60 μ m wet-film thickness) on sheet glass downwards.After dry, measure gloss.By means of framework applicator, varnish is coated to (at least two plates in each case) on glass (60 μ m wet-film thickness).Plate in baking oven 50 DEG C at stored 24 hour thereafter.In the case, plate is placed, have coating thereon with load 500g weight.Thereafter evaluation adhesion behavior.
| ? | Gloss (60 ° of angles) | Slide | Blocking characteristics |
| NC varnish is without wax | 155 | 0.54 | Sizable |
| SX-1 | 58 | 0.21 | Nothing |
| SX-2 | 69 | 0.32 | Nothing |
| SX-3 | 44 | 0.19 | Nothing |
| SX-4 | 112 | 0.38 | Some |
Claims (3)
1. a composition for modified polypropylene waxes and tetrafluoroethylene, is characterized in that comprising the following steps:
The preparation of step 1. water
By weight, add 1000 parts of water in reactor, 0.5-3 part emulsifying agent (preferably 2 parts), stirs;
The preparation of step 2. oil phase
By weight, by 100 parts of Poly Propylene Waxes, 0.5-3 part (preferably 1.5 parts) 4-amylene oxygen base trimethyl silane monomer mixes, add again 0.05-0.1 part initiator (preferably 0.5 part), add 0.5-3 part (preferably 1.5 parts) vinylformic acid hexafluoro butyl ester, stir.
Step 3. polyreaction
The oil-phase solution preparing in step 2 is added in step 1 and is equipped with in the autoclave of preparing water, then from 70-100 DEG C (preferably 90 DEG C) reaction 8-20h (preferably 10h), reaction finishes rear blowing, and washing microballoon is limpid to water, obtains product.
Step 4. blend is pulverized
75-90 part step 3 is obtained to the cured powder of polypropylene of surface modification, then mix with 10-25 part PTFE powder, weight is ground broken in pulverizing mill, obtains this patent product.
2. a composition for modified polypropylene waxes and tetrafluoroethylene, is characterized in that, uses vinylformic acid hexafluoro butyl ester in step 2, and 4-amylene oxygen base trimethyl silane monomer carries out surface aggregate to PE wax.
3. a composition for modified polypropylene waxes and tetrafluoroethylene, is characterized in that, in step 4, the Poly Propylene Wax powder of surface modification is mixed with PTFE powder, grinds fragmentation in pulverizing mill, obtains this patent product.
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| CN201410290631.1A CN104031346B (en) | 2014-06-20 | 2014-06-20 | A kind of modified polypropylene waxes and the compositions of politef |
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| CN201410290631.1A CN104031346B (en) | 2014-06-20 | 2014-06-20 | A kind of modified polypropylene waxes and the compositions of politef |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567353A (en) * | 2016-02-26 | 2016-05-11 | 王金明 | Modified ethylene-vinyl acetate copolymer pour point depressant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001085855A1 (en) * | 2000-05-12 | 2001-11-15 | Clariant Gmbh | Use of wax mixtures for coatings |
| CN101250268A (en) * | 2008-04-01 | 2008-08-27 | 南京工业大学 | Preparation method of superfine powder wax |
| CN103756396A (en) * | 2013-12-14 | 2014-04-30 | 衢州市中通化工有限公司 | Mixed wax capable of enhancing smoothness of coating and preparation method of mixed wax |
-
2014
- 2014-06-20 CN CN201410290631.1A patent/CN104031346B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001085855A1 (en) * | 2000-05-12 | 2001-11-15 | Clariant Gmbh | Use of wax mixtures for coatings |
| CN101250268A (en) * | 2008-04-01 | 2008-08-27 | 南京工业大学 | Preparation method of superfine powder wax |
| CN103756396A (en) * | 2013-12-14 | 2014-04-30 | 衢州市中通化工有限公司 | Mixed wax capable of enhancing smoothness of coating and preparation method of mixed wax |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567353A (en) * | 2016-02-26 | 2016-05-11 | 王金明 | Modified ethylene-vinyl acetate copolymer pour point depressant |
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| Publication number | Publication date |
|---|---|
| CN104031346B (en) | 2016-08-17 |
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