CN114479315A - PVC film with self-cleaning function - Google Patents
PVC film with self-cleaning function Download PDFInfo
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- CN114479315A CN114479315A CN202210173327.3A CN202210173327A CN114479315A CN 114479315 A CN114479315 A CN 114479315A CN 202210173327 A CN202210173327 A CN 202210173327A CN 114479315 A CN114479315 A CN 114479315A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 47
- -1 polysiloxane Polymers 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 239000004695 Polyether sulfone Substances 0.000 claims abstract description 21
- 229920006393 polyether sulfone Polymers 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims abstract description 20
- 239000004014 plasticizer Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 8
- 239000011737 fluorine Substances 0.000 claims abstract description 8
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 6
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims description 26
- 239000003242 anti bacterial agent Substances 0.000 claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 15
- 229910052744 lithium Inorganic materials 0.000 claims description 15
- 229910001923 silver oxide Inorganic materials 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 10
- 239000004593 Epoxy Substances 0.000 claims description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- GTRSAMFYSUBAGN-UHFFFAOYSA-N tris(2-chloropropyl) phosphate Chemical compound CC(Cl)COP(=O)(OCC(C)Cl)OCC(C)Cl GTRSAMFYSUBAGN-UHFFFAOYSA-N 0.000 claims description 5
- SHLNMHIRQGRGOL-UHFFFAOYSA-N barium zinc Chemical compound [Zn].[Ba] SHLNMHIRQGRGOL-UHFFFAOYSA-N 0.000 claims description 4
- 239000006084 composite stabilizer Substances 0.000 claims description 4
- OEIWPNWSDYFMIL-UHFFFAOYSA-N dioctyl benzene-1,4-dicarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C=C1 OEIWPNWSDYFMIL-UHFFFAOYSA-N 0.000 claims description 4
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 73
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 7
- 240000002853 Nelumbo nucifera Species 0.000 abstract description 4
- 235000006508 Nelumbo nucifera Nutrition 0.000 abstract description 4
- 235000006510 Nelumbo pentapetala Nutrition 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 4
- 230000003075 superhydrophobic effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000012466 permeate Substances 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 18
- 239000000203 mixture Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 150000004703 alkoxides Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of 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; Derivatives of such polymers
- C08J2327/02—Characterised by the use of 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; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of 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; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2481/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2481/06—Polysulfones; Polyethersulfones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2286—Oxides; Hydroxides of metals of silver
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention provides a PVC (polyvinyl chloride) film with a self-cleaning function, and belongs to the technical field of chemical materials. The feed comprises the following raw materials in parts by weight: 80-120 parts of PVC resin powder, 20-25 parts of plasticizer, 20-25 parts of stabilizer, 15-25 parts of polyether sulfone and 1-5 parts of fluorine-containing polysiloxane. The fluorine-containing polysiloxane forms relatively loose ion pairs, forms a micro-nano rough structure simulating the lotus leaf surface, achieves a super-hydrophobic state, can remarkably improve the static contact angle of water drops on the PVC membrane surface, intercepts more gas, and ensures that liquid drops are not easy to permeate into the rough structure, so that the PVC membrane has excellent self-cleaning performance.
Description
Technical Field
The invention belongs to the technical field of chemical materials, and relates to a PVC (polyvinyl chloride) film with a self-cleaning function.
Background
The membrane structure building developed in the 50's of the 20 th century is a space structure formed by various high-strength membrane materials (such as polyvinyl chloride, ethylene-tetrafluoroethylene, polytetrafluoroethylene and the like) and reinforcing members (such as steel frames, steel columns, steel frames, steel cables and the like) by utilizing a stretching mode to generate pretension in a membrane surface or generating air pressure difference inside and outside the membrane structure in an inflation mode.
The PVC film has the advantages of light weight, good light transmittance, beautiful shape and the like, and is widely applied to modern buildings, such as gymnasiums, swimming pools, airport waiting, railway stations, exhibition centers, amusement parks and other places. At present, the PVC film is applied to the field of buildings as a building material, and has the following problems: after being blown by wind or rain, the surface of the membrane material can be dusted and stained with dust, which affects the service life of the membrane material.
Disclosure of Invention
The invention aims to solve the problems and provides a PVC film with a self-cleaning function.
In order to achieve the purpose, the invention adopts the following technical scheme:
a PVC film with a self-cleaning function comprises the following raw materials in parts by weight: 80-120 parts of PVC resin powder, 20-25 parts of plasticizer, 20-25 parts of stabilizer, 15-25 parts of polyether sulfone and 1-5 parts of fluorine-containing polysiloxane.
In the PVC membrane with the self-cleaning function, the fluorine-containing polysiloxane is one or more of lithium polytrifluoropropylmethylsiloxane and potassium polydimethylsiloxane.
The PVC film with the self-cleaning function comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of a plasticizer, 22 parts of a stabilizer, 16 parts of polyether sulfone and 2 parts of lithium polytrifluoropropylmethylsiloxane.
The PVC film with the self-cleaning function comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of plasticizer, 22 parts of stabilizer, 20 parts of polyether sulfone and 3 parts of polydimethylsiloxane potassium silanol.
In the PVC film with the self-cleaning function, the plasticizer is one or more of epoxidized soybean oil, tris (2-chloropropyl) phosphate, dioctyl terephthalate and epoxy stearate.
In the PVC film with the self-cleaning function, the stabilizer is one or more of barium-zinc composite stabilizer and long-chain fatty acid salt.
The PVC film with the self-cleaning function further comprises 1-10 parts of an antibacterial agent.
In the PVC film with the self-cleaning function, the antibacterial agent comprises the following raw materials in parts by weight: 5-10 parts of silver oxide.
In the PVC film with the self-cleaning function, the antibacterial agent comprises the following raw materials in parts by weight: 5-10 parts of silver oxide and 2-10 parts of silicon oxide.
The PVC film with the self-cleaning function comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of a plasticizer, 22 parts of a stabilizer, 16 parts of polyether sulfone, 2 parts of lithium polytrifluoropropylmethylsiloxane and 5 parts of an antibacterial agent;
wherein the antibacterial agent comprises the following raw materials in parts by weight: 8 parts of silver oxide and 3 parts of silicon oxide.
The invention also provides a preparation method of the PVC film with the self-cleaning function, which comprises the following steps:
(1) feeding the raw materials into a mixer according to the preset weight parts, and mixing for 5-10min at the speed of 1000-;
(2) and (2) adding the PVC mixture obtained in the step (1) into a double-screw extruder, wherein the screw rotating speed of the double-screw extruder is 115r/min, the temperature is 30-150 ℃, and performing extrusion molding, cooling and drying to obtain the PVC film with the self-cleaning function.
When the raw materials contain the antibacterial agent, the preparation method comprises the following steps:
(1) adding silver oxide and polyether sulfone into silica sol according to a preset weight part, and uniformly stirring to obtain an antibacterial agent;
(2) adding other raw materials and the antibacterial agent obtained in the step (1) into a mixer according to the preset weight part, and mixing for 5-10min at the speed of 1000-;
(3) and (3) adding the PVC mixture obtained in the step (2) into a double-screw extruder with the length-diameter ratio L/D (ratio of L/D to D) of 48, wherein the screw rotating speed of the double-screw extruder is 115r/min, the temperature is 30-150 ℃, and performing extrusion molding, cooling and drying to obtain the PVC film with the self-cleaning function.
Compared with the prior art, the invention has the advantages that:
(1) the fluorine-containing polysiloxane forms relatively loose ion pairs, forms a micro-nano rough structure simulating the lotus leaf surface, achieves a super-hydrophobic state, can remarkably improve the static contact angle of water drops on the PVC membrane surface, intercepts more gas, and ensures that liquid drops are not easy to permeate into the rough structure, so that the PVC membrane has excellent self-cleaning performance.
(2) The fluorine-containing polysiloxane adopts the lithium polytrifluoropropylmethylsiloxane silanol and the potassium polytrimethylsiloxane silanol, lithium, potassium and silanol oxygen anions form relatively loose ion pairs, a micro-nano coarse structure simulating the lotus leaf surface is formed, a super-hydrophobic state is achieved, and a dust collection test shows that the PVC membrane has excellent self-cleaning performance.
(3) The PVC membrane provided by the invention provides a framework supporting effect for the PVC membrane through polyether sulfone, and the mechanical property of the PVC membrane and the strength of a membrane material are guaranteed.
(4) The silver oxide in the invention can degrade organic matters, has the antibacterial and antifouling functions, and is added into the PVC film to ensure that the PVC film has the self-cleaning property. The polyether sulfone has adhesive force with the metal silver, so that the polyether sulfone can uniformly disperse the metal silver into the PVC membrane. The silicon oxide has ideal adsorption property, so that the silicon oxide is used as a carrier to uniformly disperse the silver oxide into the PVC film.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
A PVC film with a self-cleaning function comprises the following raw materials in parts by weight: 80 parts of PVC resin powder, 20 parts of epoxidized soybean oil, 20 parts of barium-zinc composite stabilizer, 15 parts of polyether sulfone and 1 part of lithium polytrifluoropropylmethylsiloxane.
The preparation method of the PVC film with the self-cleaning function in the embodiment comprises the following steps:
(1) feeding the raw materials into a mixer according to the preset weight parts, and mixing for 5min at 1000r/min to obtain a PVC mixture;
(2) and (2) adding the PVC mixture obtained in the step (1) into a double-screw extruder, wherein the screw rotating speed of the double-screw extruder is 115r/min, the temperature is 30 ℃, and performing extrusion molding, cooling and drying to obtain the PVC film with the self-cleaning function.
Example 2
A PVC film with a self-cleaning function comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of a plasticizer, 22 parts of a long-chain fatty acid salt, 16 parts of polyether sulfone and 2 parts of lithium polytrifluoropropylmethylsiloxane.
The plasticizer is tri (2-chloropropyl) phosphate and dioctyl terephthalate epoxy stearate, wherein the ratio of the tri (2-chloropropyl) phosphate to the dioctyl terephthalate epoxy stearate is 1: 1.
example 3
A PVC film with a self-cleaning function comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of epoxy stearate, 22 parts of long-chain fatty acid salt, 20 parts of polyether sulfone and 3 parts of polydimethylsiloxane potassium silanol.
Example 4
A PVC film with a self-cleaning function comprises the following raw materials in parts by weight: 120 parts of PVC resin powder, 25 parts of tris (2-chloropropyl) phosphate, 25 parts of barium-zinc composite stabilizer, 25 parts of polyether sulfone, 5 parts of polydimethylsiloxane potassium silanol and an antibacterial agent.
The antibacterial agent comprises the following raw materials in parts by weight: 5 parts of silver oxide and 2 parts of silicon oxide.
The preparation method of the PVC film with the self-cleaning function in the embodiment comprises the following steps:
(1) adding silver oxide and polyether sulfone into silica sol according to a preset weight part, and uniformly stirring to obtain an antibacterial agent;
(2) adding other raw materials and the antibacterial agent obtained in the step (1) into a mixer according to a preset weight part, and mixing for 5min at 1000r/min to obtain a PVC mixture;
(3) and (3) adding the PVC mixture obtained in the step (2) into a double-screw extruder with the length-diameter ratio L/D (L/D) of 48, wherein the screw rotating speed of the double-screw extruder is 115r/min, the temperature is 30 ℃, and performing extrusion molding, cooling and drying to obtain the PVC film with the self-cleaning function.
Example 5
Example 5 is essentially the same as example 4, except for 10 parts silver oxide and 10 parts silicon oxide.
Example 6
A PVC film with a self-cleaning function comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of plasticizer, 22 parts of stabilizer, 16 parts of polyether sulfone, 2 parts of lithium polytrifluoropropylmethylsiloxane and antibacterial agent;
wherein the antibacterial agent comprises the following raw materials in parts by weight: 8 parts of silver oxide and 3 parts of silicon oxide.
Comparative example 1
Comparative example 1 is essentially the same as example 1 except that no lithium polytrifluoropropylmethylsiloxane alkoxide is added.
Comparative example 2
Comparative example 2 is essentially the same as example 1 except that no polyethersulfone is added.
Comparative example 3
Comparative example 3 is essentially the same as example 1 except that no lithium polytrifluoropropylmethylsiloxane silanol and polyether sulfone are added.
Comparative example 4
Comparative example 4 is essentially the same as example 2 except that no lithium polytrifluoropropylmethylsiloxane alkoxide is added.
Comparative example 5
Comparative example 5 is substantially the same as example 4 except that no antibacterial agent was added.
Application example
The self-cleaning property of the materials was characterized by the dust collection test of the PVC films of examples 1 to 6 having a self-cleaning function and the PVC films of comparative examples 1 to 5. The specific operation method comprises the following steps: the PVC films with the self-cleaning function in the examples 1-6 and the PVC films in the comparative examples 1-5 are placed on a movable horizontal substrate, carbon powder is uniformly scattered on the surface of the PVC films, 0.1mL of distilled water is absorbed and dropped on the surface of a sample, the sample is inclined at a certain angle to roll the water drops, the condition that the water drops take away dirt is observed, and the self-cleaning capability of the PVC films is represented.
TABLE 1
| Contact angle | Dirt | |
| Example 1 | 151.6 | Is taken away by water drops |
| Example 2 | 156.2 | Is taken away by water drops |
| Example 3 | 149.5 | Is taken away by water drops |
| Example 4 | 152.1 | Is taken away by water drops |
| Example 5 | 149.5 | Is taken away by water drops |
| Example 6 | 152.1 | Is taken away by water drops |
| Comparative example 1 | 122.0 | Attached to the surface of the PVC film |
| Comparative example 2 | 115.3 | Attached to the surface of the PVC film |
| Comparative example 3 | 118.2 | Attached to the surface of the PVC film |
| Comparative example 4 | 109.5 | Attached to the surface of the PVC film |
| Comparative example 5 | 102.2 | Attached to the surface of the PVC film |
As can be seen from the above table, the PVC films of examples 1 to 6 are more self-cleaning than those of comparative examples 1 to 5. It can be seen that the lithium polytrifluoropropylmethylsiloxane silanol and the potassium polydimethylsiloxane silanol in the embodiments 1 to 6 form a relatively loose ion pair, so that a micro-nano rough structure simulating the lotus leaf surface is formed, a super-hydrophobic state is achieved, the static contact angle of water drops on the surface of the PVC membrane can be obviously improved, more gases are trapped, and at the moment, the liquid drops are not easy to permeate into the rough structure, so that the PVC membrane has excellent self-cleaning performance.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The PVC film with the self-cleaning function is characterized by comprising the following raw materials in parts by weight: 80-120 parts of PVC resin powder, 20-25 parts of plasticizer, 20-25 parts of stabilizer, 15-25 parts of polyether sulfone and 1-5 parts of fluorine-containing polysiloxane.
2. The PVC membrane with self-cleaning function according to claim 1, wherein the fluorine-containing polysiloxane is one or more of lithium polytrifluoropropylmethylsiloxane and potassium polydimethylsiloxane.
3. The PVC film with the self-cleaning function as claimed in claim 2, which is characterized by comprising the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of a plasticizer, 22 parts of a stabilizer, 16 parts of polyether sulfone and 2 parts of lithium polytrifluoropropylmethylsiloxane.
4. The PVC film with the self-cleaning function as claimed in claim 2, which is characterized by comprising the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of plasticizer, 22 parts of stabilizer, 20 parts of polyether sulfone and 3 parts of polydimethylsiloxane potassium silanol.
5. The PVC film with the self-cleaning function as claimed in claim 1, wherein the plasticizer is one or more of epoxidized soybean oil, tris (2-chloropropyl) phosphate, dioctyl terephthalate and epoxy stearate.
6. The PVC film with the self-cleaning function according to claim 1, wherein the stabilizer is one or more of a barium-zinc composite stabilizer and a long-chain fatty acid salt.
7. The PVC film with a self-cleaning function according to claim 2, further comprising an antibacterial agent.
8. The PVC film with the self-cleaning function as claimed in claim 7, wherein the antibacterial agent comprises the following raw materials in parts by weight: 5-10 parts of silver oxide and 2-10 parts of silicon oxide.
9. The PVC film with the self-cleaning function as recited in claim 7, wherein the antibacterial agent comprises the following raw materials in parts by weight: 5 parts of silver oxide and 2 parts of silicon oxide.
10. The PVC film with the self-cleaning function as recited in claim 9, which comprises the following raw materials in parts by weight: 100 parts of PVC resin powder, 22 parts of plasticizer, 22 parts of stabilizer, 16 parts of polyether sulfone, 2 parts of lithium polytrifluoropropylmethylsiloxane and antibacterial agent;
wherein the antibacterial agent comprises the following raw materials in parts by weight: 8 parts of silver oxide and 3 parts of silicon oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210173327.3A CN114479315A (en) | 2022-02-24 | 2022-02-24 | PVC film with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210173327.3A CN114479315A (en) | 2022-02-24 | 2022-02-24 | PVC film with self-cleaning function |
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| CN114479315A true CN114479315A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210173327.3A Pending CN114479315A (en) | 2022-02-24 | 2022-02-24 | PVC film with self-cleaning function |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359981A (en) * | 2023-11-13 | 2024-01-09 | 新航涂布科技(苏州)有限公司 | Color film widely applied to building materials, preparation process and production equipment |
| CN117362864A (en) * | 2023-09-26 | 2024-01-09 | 江苏华信高新材料有限公司 | Antibacterial PVC film with self-cleaning function |
Citations (4)
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| CN117359981A (en) * | 2023-11-13 | 2024-01-09 | 新航涂布科技(苏州)有限公司 | Color film widely applied to building materials, preparation process and production equipment |
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