CN107034687B - A kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad and preparation method thereof - Google Patents
A kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad and preparation method thereof Download PDFInfo
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- CN107034687B CN107034687B CN201710182169.7A CN201710182169A CN107034687B CN 107034687 B CN107034687 B CN 107034687B CN 201710182169 A CN201710182169 A CN 201710182169A CN 107034687 B CN107034687 B CN 107034687B
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- emulsion
- temperature resistant
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- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 96
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 64
- -1 polytetrafluoroethylene Polymers 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 175
- 239000011248 coating agent Substances 0.000 claims abstract description 161
- 239000000839 emulsion Substances 0.000 claims abstract description 71
- 229920001971 elastomer Polymers 0.000 claims abstract description 26
- 239000000806 elastomer Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 239000006071 cream Substances 0.000 claims abstract description 23
- 239000002253 acid Substances 0.000 claims abstract description 18
- XJWOWXZSFTXJEX-UHFFFAOYSA-N phenylsilicon Chemical compound [Si]C1=CC=CC=C1 XJWOWXZSFTXJEX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000006210 lotion Substances 0.000 claims abstract description 13
- 239000004809 Teflon Substances 0.000 claims abstract description 8
- 229920006362 Teflon® Polymers 0.000 claims abstract description 8
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 19
- 238000005245 sintering Methods 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 150000002221 fluorine Chemical class 0.000 claims description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000741 silica gel Substances 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 10
- 229960001866 silicon dioxide Drugs 0.000 description 10
- 239000002243 precursor Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000003384 small molecules Chemical class 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical class C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Polymers C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000036528 appetite Effects 0.000 description 1
- 235000019789 appetite Nutrition 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/047—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with fluoropolymers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C09D127/18—Homopolymers or copolymers of tetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2201/00—Chemical constitution of the fibres, threads or yarns
- D06N2201/02—Synthetic macromolecular fibres
- D06N2201/029—Fluoropolymer fibres
Abstract
The present invention provides a kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad, including substrate, the two sides of the substrate are respectively equipped with coating, and the substrate is fluorofibre；The coating successively includes first coating, second coating, third coating, the 4th coating, the 5th coating and the 6th coating, and the first coating is coated on the side of substrate；The first coating, second coating and third coating are made of modified Teflon elastomer emulsions or fluorin modified crylic acid elastomer emulsions；4th coating is made of ptfe emulsion and modified fluoroelastomer lotion or fluorin modified crylic acid elastomer emulsions；5th coating is pure polytetrafluorethylecoatings coatings；6th coating is made of the mixed emulsion of ptfe emulsion and phenyl silicon cream.Steamer pad of the present invention, folding is durable, and the service life is long, safety, harmless, ensure that the food of steamer pad of the present invention uses security and stability.The present invention also provides the preparation methods of above-mentioned steamer pad.
Description
Technical field
The invention belongs to food manufacturing appliance technologies, steam more particularly, to a kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE)
Cage pad and preparation method thereof.
Background technique
Wheaten food is in boiling, to prevent bottom and the steaming plate of wheaten food from bonding, usually to place one piece in steaming plate bottom
Steamer pad, food steamer in the prior art are lined with following several: straw mat pad, white yarn cloth and silicagel pad, these steamer pads exist very much
The drawbacks of, wherein straw mat pad is tattered, have peculiar smell using black after of long duration；Tattered straw mat is often with steamed stuffed bun
It picks up and is stained with clast, not only influence beautiful, it is easier to breed bacterium；And service life is shorter, once it is scattered, then it must be entire
Replacement.White yarn cloth is turned to be yellow using rear gauze for a long time, and yarn silk is easily broken, and the bottom of food contact gauze is caused to black, not only
Beauty is influenced, the appetite of eater is had an effect on；It needs to use water-soaked before use, otherwise be easy to cause food and gauze sticky, not only
Not easy cleaning, it is easier to grow bacterium.Silicagel pad is used and can be turned to be yellow long afterwards, and with silica gel peculiar smell.Silica gel piece process is repeatedly high
Embrittlement after temperature, frangibility, service life are short；Cheap silicagel pad on the market often uses silica gel inferior to save cost,
It is unable to satisfy food grade standard；And silica gel is under high temperature environment, discharges toxin, uses or edible for a long time, influences health；
Silicagel pad will paint silica gel oil before use in silicagel pad, cumbersome, waste time；And the steaming of silicon rubber is used now
Cage pad needs using silastic material to be main adhesive, and the curing degree of usual silicone rubber is difficult to reach food standard, because
For there are curing agent residuals and many uncured small molecules, and contaminated food can be precipitated.Common polytetrafluoroethylene (PTFE) adhesive because
The hardness of four fluorine coatings itself and make adhesive harder, in as steamer pad use process frangibility breakage intolerant to
With.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide a kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) food steamers
Pad, with polytetrafluoroethyl-ne alkenes compound for main coating material, safety and environmental protection, folding is durable, and the service life is long.The present invention also provides
The preparation method of above-mentioned high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad uses Technology of Flexibility combination polytetrafluorethylecoatings coatings skill
Art, the polytetrafluoroethylene material used is purer and nearly 400 degree of high temperature sinterings is needed to solidify, the substance of many small molecule classes
It can be completely removed that reach food-grade other using standard by high temperature.And this product can also use, and food is baked and banked up with earth, as defeated
It sends and is ok using progress food baking, or conveying article etc.
The technical solution adopted by the present invention is that:
A kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad, including substrate, the two sides of the substrate are respectively equipped with painting
Layer, the substrate are fluorofibre, and the diameter of the fluorofibre is less than 100um, and fluorinated volume is greater than 15wt%, is less than or equal to
45wt%；The Vicat softening point of the fluorofibre is greater than 280 DEG C；The coating successively includes first coating, second coating,
Three coating, the 4th coating, the 5th coating and the 6th coating, the first coating are coated on the side of the substrate；Described
One coating, the second coating and the third coating are by modified Teflon elastomer emulsions or fluorin modified crylic acid bullet
Property precursor emulsion is made；4th coating is by ptfe emulsion and modified fluoroelastomer lotion or fluorin modified crylic acid bullet
Property precursor emulsion be made, the content of ptfe emulsion described in the 4th coating is greater than 60wt%；5th coating is
Pure polytetrafluorethylecoatings coatings, the pure polytetrafluorethylecoatings coatings are made of ptfe emulsion；6th coating is by poly- four
Vinyl fluoride lotion and the mixed emulsion of phenyl silicon cream are made, and the content of phenyl silicon cream is 1-35wt% in the mixed emulsion.
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, wherein the first coating, described second apply
Layer, the third coating, the 4th coating, the 5th coating and the 6th coating with a thickness of 0.03-0.1mm.
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, wherein the fluorofibre is polytetrafluoroethyl-ne
Alkene fiber.
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, wherein the fluorin modified crylic acid elastomer
The fluorinated volume of lotion is greater than 15wt%, is less than or equal to 55wt%.
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, wherein the 4th coating, the described 5th apply
The solid content of ptfe emulsion used in layer and the 6th coating is respectively less than 40%, and relative molecular weight is respectively less than 100
Ten thousand.
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, wherein the partial size of the phenyl silicon cream is less than
100nm。
The preparation method of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, comprising the following steps:
(a) firstly, coating modified Teflon elasticity on the two sides of the substrate using the method for dip coated
Then precursor emulsion or fluorin modified crylic acid elastomer emulsions are sintered and are formed by curing the first coating, the sintering curing
Temperature be 370-400 DEG C, time of the sintering curing is 10-15min, and sequentially forms described the using same method
Two coatings and the third coating；
(b) ptfe emulsion and modified fluorine are then coated on the third coating using the method in step (a)
Elastomer emulsions or fluorin modified crylic acid elastomer emulsions form the 4th coating；Polytetrafluoro is coated on the 4th coating
Vac emulsion forms the 5th coating；
(c) ptfe emulsion and phenyl silicon cream are finally coated on the 5th coating using the method for dip coated
Mixed emulsion, be then sintered and be formed by curing the 6th coating, the temperature of the sintering curing is 400 DEG C, the burning
Tying the cured time is 10-15min.
The invention has the advantages that:
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, using the polytetrafluoro for more meeting food and using
For ethylene compounds as main coating material, folding is durable, and the service life is long, safety, harmless, ensure that steamer pad of the present invention
Food use security and stability；Using fluoroelastomer coating as flexible coating, make the use of steamer pad of the present invention
Service life greatly improves, and improves 5 times than common product.
High temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, the pure polytetrafluorethylecoatings coatings are by solid content
Ptfe emulsion less than 40% is made, and the solid content is small less than the relative molecular weight of 40% ptfe emulsion
In 1,000,000, it is easy to be coated with, permeance property is good, guarantees that steamer pad service life improves.
The partial size of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, the phenyl silicon cream is less than 100nm,
It can be improved the penetration of steamer pad, increase service life.
The preparation method of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention, using flexible preferable fluorine-containing
Fiber simultaneously combines polytetrafluorethylecoatings coatings technology, so that steamer pad folding of the invention is durable, the service life is permanent, using nearly 400 DEG C
High temperature sintering solidification, the substance of many small molecule classes can be completely removed that reach food-grade other using standard by high temperature.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad of the present invention.
Below in conjunction with specific embodiments and the drawings, the invention will be further described.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad, including substrate 1, the two sides point of substrate 1
Not She You coating 2, the substrate 1 is fluorofibre, and the diameter of the fluorofibre is less than 100um, and the fluorofibre contains
Fluorine amount is greater than 15wt%, is less than or equal to 45wt%, and the Vicat softening point of the fluorofibre is greater than 280 DEG C, the fluorofibre
For polytetrafluoroethylene fibre；The number of plies of coating 2 is 6 layers, and coating 2 successively includes first coating 21, second coating 22, third coating
23, the 4th coating 24, the 5th coating 25 and the 6th coating 26, first coating 21 are coated on the side of substrate 1；First coating
21, second coating 22 and third coating 23 are made of modified Teflon elastomer emulsions, the modified Teflon
Elastomer emulsions are THV fluoro-resin emulsion (being purchased from U.S. 3M)；4th coating 24 is by ptfe emulsion and modified fluorine elasticity
Precursor emulsion is made, and the content of ptfe emulsion is 60wt% in the 4th coating 24, and the content of modified fluoroelastomer lotion is
40wt%, the modified fluoroelastomer lotion are fluorubber lotion, and the fluorubber lotion is Du Pont KALREZ series fluorubber
Product emulsion；5th coating 25 is pure polytetrafluorethylecoatings coatings, and the pure polytetrafluorethylecoatings coatings are by ptfe emulsion system
At；6th coating 26 is made of the mixed emulsion of ptfe emulsion and phenyl silicon cream, phenyl silicon cream in the mixed emulsion
Content be 1-35wt%, the partial size of the phenyl silicon cream is less than 100nm；First coating 21, second coating 22, third coating
23, the 4th coating 24, the 5th coating 25 and the 6th coating 26 with a thickness of 0.03-0.1mm；4th coating 24, the 5th coating 25
It is respectively less than 40% with the solid content of ptfe emulsion used in the 6th coating 26, relative molecular weight is respectively less than 1,000,000.
The preparation method of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad described in the present embodiment, comprising the following steps:
(a) firstly, coating modified Teflon elastomer cream on the two sides of substrate 1 using the method for dip coated
Then liquid is sintered using vertical type baking oven and is formed by curing first coating 21, the temperature of the sintering curing is 370-400
DEG C, the time of sintering curing is 15min, and sequentially forms second coating 22 and third coating 23 using same method；
(b) ptfe emulsion and modified fluorine bullet are then coated on third coating 23 using the method in step (a)
Property precursor emulsion formed the 4th coating 24；Ptfe emulsion is coated on the 4th coating 24 forms the 5th coating 25；
(c) ptfe emulsion and phenyl silicon cream are finally coated on the 5th coating 25 using the method for dip coated
Then mixed emulsion is sintered using vertical type baking oven and is formed by curing the 6th coating 26, the temperature of the sintering curing is 400
DEG C, the time of sintering curing is 15min.
Embodiment 2
As shown in Figure 1, a kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad, including substrate 1, the two sides point of substrate 1
Not She You coating 2, the substrate 1 is fluorofibre, and the diameter of the fluorofibre is less than 100um, and the fluorofibre contains
Fluorine amount is greater than 15wt%, is less than or equal to 45wt%, and the Vicat softening point of the fluorofibre is greater than 280 DEG C, the fluorofibre
For polytetrafluoroethylene fibre；The number of plies of coating 2 is 6 layers, and coating 2 successively includes first coating 21, second coating 22, third coating
23, the 4th coating 24, the 5th coating 25 and the 6th coating 26, first coating 21 are coated on the side of substrate 1；First coating
21, second coating 22 and third coating 23 are made of fluorin modified crylic acid elastomer emulsions；4th coating 24 is by polytetrafluoroethyl-ne
Alkene lotion is made with fluorin modified crylic acid elastomer emulsions, and the content of ptfe emulsion is greater than in the 4th coating 24
60wt%, first coating 21, second coating 22, third coating 23, the cream of fluorin modified crylic acid elastomer described in the 4th coating 24
Liquid is polytetrafluoroethylmodified modified acrylic elastomer lotion, and the fluorinated volume of the fluorin modified crylic acid elastomer emulsions is greater than
15wt% is less than or equal to 55wt%；5th coating 25 is pure polytetrafluorethylecoatings coatings, and the pure polytetrafluorethylecoatings coatings are by poly- four
Vinyl fluoride lotion is made；6th coating 26 is made of the mixed emulsion of ptfe emulsion and phenyl silicon cream, the mixing cream
The content of phenyl silicon cream is 1-35wt% in liquid, and the partial size of the phenyl silicon cream is less than 100nm；First coating 21, second coating
22, third coating 23, the 4th coating 24, the 5th coating 25 and the 6th coating 26 with a thickness of 0.03-0.1mm；4th coating 24,
The solid content of ptfe emulsion used in 5th coating 25 and the 6th coating 26 is respectively less than 40%, and relative molecular weight is small
In 1,000,000.
The preparation method of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad described in the present embodiment, comprising the following steps:
(a) firstly, coating fluorin modified crylic acid elastomer cream on the two sides of substrate 1 using the method for dip coated
Then liquid is sintered using vertical type baking oven and is formed by curing first coating 21, the temperature of the sintering curing is 370-400
DEG C, the time of sintering curing is 15min, and sequentially forms second coating 22 and third coating 23 using same method；
(b) ptfe emulsion and fluorine richness third are then coated on third coating 23 using the method in step (a)
Olefin(e) acid elastomer emulsions form the 4th coating 24；Ptfe emulsion is coated on the 4th coating 24 forms the 5th coating 25；
(c) ptfe emulsion and phenyl silicon cream are finally coated on the 5th coating 25 using the method for dip coated
Then mixed emulsion is sintered using vertical type baking oven and is formed by curing the 6th coating 26, the temperature of the sintering curing is 400
DEG C, the time of sintering curing is 15min.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (7)
1. a kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad, it is characterised in that: including substrate (1), the two of the substrate (1)
Side is respectively equipped with coating (2), and the substrate (1) is fluorofibre, and the diameter of the fluorofibre is less than 100um, fluorinated volume
Greater than 15wt%, it is less than or equal to 45wt%；The Vicat softening point of the fluorofibre is greater than 280 DEG C；The coating (2) is successively wrapped
Include first coating (21), second coating (22), third coating (23), the 4th coating (24), the 5th coating (25) and the 6th coating
(26), the first coating (21) is coated on the side of the substrate (1)；The first coating (21), the second coating
(22) and the third coating (23) is by modified Teflon elastomer emulsions or fluorin modified crylic acid elastomer emulsions system
At；4th coating (24) is by ptfe emulsion and modified fluoroelastomer lotion or fluorin modified crylic acid elastomer cream
Liquid is made, and the content of ptfe emulsion described in the 4th coating (24) is greater than 60wt%；5th coating (25)
For pure polytetrafluorethylecoatings coatings, the pure polytetrafluorethylecoatings coatings are made of ptfe emulsion；6th coating (26)
It is made of the mixed emulsion of ptfe emulsion and phenyl silicon cream, the content of phenyl silicon cream is 1- in the mixed emulsion
35wt%.
2. high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad according to claim 1, it is characterised in that: the first coating
(21), the second coating (22), the third coating (23), the 4th coating (24), the 5th coating (25) and institute
State the 6th coating (26) with a thickness of 0.03-0.1mm.
3. high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad according to claim 1, it is characterised in that: the fluorofibre
For polytetrafluoroethylene fibre.
4. high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad according to claim 1, it is characterised in that: the fluorine richness third
The fluorinated volume of olefin(e) acid elastomer emulsions is greater than 15wt%, is less than or equal to 55wt%.
5. high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad according to claim 1, it is characterised in that: the 4th coating
(24), the solid content of ptfe emulsion used in the 5th coating (25) and the 6th coating (26) is respectively less than
40%, relative molecular weight is respectively less than 1,000,000.
6. high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad described in -5 any one according to claim 1, it is characterised in that: institute
The partial size for stating phenyl silicon cream is less than 100nm.
7. the preparation method of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad as claimed in any one of claims 1 to 6, feature
It is: the following steps are included:
(a) firstly, coating modified Teflon elastomer on the two sides of the substrate (1) using the method for dip coated
Then lotion or fluorin modified crylic acid elastomer emulsions are sintered and are formed by curing the first coating (21), the sintering is solid
The temperature of change is 370-400 DEG C, and the time of the sintering curing is 10-15min, and it is described to use same method to sequentially form
Second coating (22) and the third coating (23)；
(b) ptfe emulsion and modified fluorine are then coated on the third coating (23) using the method in step (a)
Elastomer emulsions or fluorin modified crylic acid elastomer emulsions form the 4th coating (24)；It is applied on the 4th coating (24)
It covers ptfe emulsion and forms the 5th coating (25)；
(c) ptfe emulsion and phenyl silicon cream are finally coated on the 5th coating (25) using the method for dip coated
Mixed emulsion, be then sintered and be formed by curing the 6th coating (26), the temperature of the sintering curing is 400 DEG C, institute
The time for stating sintering curing is 10-15min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182169.7A CN107034687B (en) | 2017-03-24 | 2017-03-24 | A kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710182169.7A CN107034687B (en) | 2017-03-24 | 2017-03-24 | A kind of high temperature resistant flexibility containing polytetrafluoroethylene (PTFE) steamer pad and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107034687A CN107034687A (en) | 2017-08-11 |
| CN107034687B true CN107034687B (en) | 2019-03-22 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303442A (en) * | 2011-08-20 | 2012-01-04 | 嘉兴市安瑞材料科技有限公司 | Nonstick steamer cloth |
| CN202287856U (en) * | 2011-10-11 | 2012-07-04 | 桐乡市科力复合材料有限公司 | Novel food steamer pad |
| CN202497005U (en) * | 2012-03-20 | 2012-10-24 | 陈可瑞 | Food steamer |
-
2017
- 2017-03-24 CN CN201710182169.7A patent/CN107034687B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303442A (en) * | 2011-08-20 | 2012-01-04 | 嘉兴市安瑞材料科技有限公司 | Nonstick steamer cloth |
| CN202287856U (en) * | 2011-10-11 | 2012-07-04 | 桐乡市科力复合材料有限公司 | Novel food steamer pad |
| CN202497005U (en) * | 2012-03-20 | 2012-10-24 | 陈可瑞 | Food steamer |
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| Publication number | Publication date |
|---|---|
| CN107034687A (en) | 2017-08-11 |
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Denomination of invention: High temperature resistant flexible food steamer mat containing polytetrafluoroethylene and preparing method of food steamer mat Effective date of registration: 20200331 Granted publication date: 20190322 Pledgee: Shexian Anhui rural commercial bank Limited by Share Ltd. Pledgor: Huangshan MEAO Composite Materials Co.,Ltd. Registration number: Y2020980001187 |
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Denomination of invention: A high temperature resistant flexible steamer mat containing polytetrafluoroethylene and its preparation method Effective date of registration: 20210323 Granted publication date: 20190322 Pledgee: Shexian Anhui rural commercial bank Limited by Share Ltd. Pledgor: Huangshan MEAO Composite Materials Co.,Ltd. Registration number: Y2021980001954 |
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Granted publication date: 20190322 Pledgee: Shexian Anhui rural commercial bank Limited by Share Ltd. Pledgor: Huangshan MEAO Composite Materials Co.,Ltd. Registration number: Y2021980001954 |
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