CN107793583A - A kind of method for improving PTFE film washing fastness - Google Patents
A kind of method for improving PTFE film washing fastness Download PDFInfo
- Publication number
- CN107793583A CN107793583A CN201711106790.1A CN201711106790A CN107793583A CN 107793583 A CN107793583 A CN 107793583A CN 201711106790 A CN201711106790 A CN 201711106790A CN 107793583 A CN107793583 A CN 107793583A
- Authority
- CN
- China
- Prior art keywords
- ptfe film
- washing fastness
- improving
- waterproofing agent
- dressing liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- 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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
-
- 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
- C08J2327/12—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 fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Abstract
The invention discloses a kind of method for improving PTFE film washing fastness, PTFE film is soaked in the dressing liquid of preparation, again successively by infrared baking and clot after baking, the washing fastness of the PTFE film is finally effectively improved in the case where not influenceing PTFE film gas permeability and penetrability, the dressing liquid is the butanone solution for the fluorocarbon class waterproofing agent that concentration is 100 180g/L.PTFE film introduces fluorocarbon class waterproofing agent in the presence of organic solvent butanone in the present invention, effectively prevent the surfactant in detergent from penetrating into PTFE film, in order to have no effect on the gas permeability and penetrability of the PTFE film while PTFE film washing fastness is improved.
Description
Technical field
The invention belongs to the technical field of improvement of PTFE film, and in particular to a kind of method for improving PTFE film washing fastness.
Background technology
PTFE lamination composite materials are waterproof, windproof, moisture-inhibiting preferred materials, are the fabrics that can really breathe, use extensively
In outdoor sports coat, medical protection, multi-functional police uniform and anorak etc., but the washing fastness of PTFE fabrics is poor, by one
After secondary or multiple washing, water proofing property, the gas permeability of the PTFE fabrics are decreased obviously, and in turn result in the practicality drop of the fabric
It is low.The main washing fastness that PTFE film is improved using the method for PU coatings domestic at present, but it is improved to pass through PU coatings
The gas permeability and penetrability of PTFE film reduce, and it Yellowing easily occurs in the case of Exposure to Sunlight.We experimentally found that
The main reason for washing fastness difference of PTFE film is due to that some surfactants in detergent are penetrated into PTFE film, makes its parent
Water-based reinforcement, and then cause the washing fastness of PTFE film poor.Therefore, it is necessary to weight is carried out to the improved technology of existing PTFE film
New design, a kind of PTFE film washing fastness is effectively improved on the premise of PTFE film gas permeability and penetrability is not influenceed to obtain
Method.
The content of the invention
Present invention solves the technical problem that there is provided, a kind of technique is simple, cost is cheap and easy to operate raising PTFE
The method of film washing fastness.
The present invention is to solve above-mentioned technical problem to adopt the following technical scheme that, a kind of side for improving PTFE film washing fastness
Method, it is characterised in that：PTFE film is soaked in the dressing liquid of preparation, then successively by infrared baking and clot after baking,
The washing fastness of the PTFE film, the dressing liquid are finally effectively improved in the case where not influenceing PTFE film gas permeability and penetrability
It is the butanone solution for the fluorocarbon class waterproofing agent that concentration is 100-180g/L.
Further preferably, the fluorocarbon class waterproofing agent is that C6 class fluorocarbon waterproofing agents or the fluorination of C8 classes carbon are closed
Thing waterproofing agent.
Further preferably, the C6 classes fluorocarbon waterproofing agent is preferably C6 waterproofing agents F-811.
Further preferably, the C8 classes fluorocarbon waterproofing agent is preferably C8 waterproofing agents F-371.
Further preferably, the concentration of the dressing liquid is preferably 150g/L.
Further preferably, the baking temperature is preferably 220-237 DEG C.
The present invention has the advantages that compared with prior art：Work of the PTFE film in organic solvent butanone in the present invention
With lower introducing fluorocarbon class waterproofing agent, effectively prevent surfactant in detergent from penetrating into PTFE film, in order to
The gas permeability and penetrability of the PTFE film are had no effect on while improving PTFE film washing fastness.The present invention successfully solves PTFE
The problem of film washing fastness difference, and method is easy to operate and technique is simple, will not cause side effect to PTFE film.
Embodiment
The particular content of the present invention is described in detail in conjunction with the embodiments.
Embodiment
The technological process of production is：
Prepare dressing liquid-immersion-infrared baking-high temperature（220-237℃）Bake-clot.
By experiment, to different technology conditions（Do not arrange and the dressing liquid of various concentrations is arranged, the carbon in dressing liquid
Fluorine compounds class waterproofing agent is C6 waterproofing agents F-811）Product tested, experimental data is as follows：
| Do not arrange | 40g/L | 80g/L | 150g/L | 200g/L | |
| Wash half an hour | Without waterproof | Without waterproof | Hydraulic pressure：4m H2O | Hydraulic pressure：10m H2O | Feel is harder |
| Washing 8 hours | Without waterproof | Without waterproof | Hydraulic pressure：2m H2O | Hydraulic pressure：6m H2O | Feel is harder |
| Washing 16 hours | Without waterproof | Without waterproof | Without waterproof | Hydraulic pressure：3m H2O | Feel is harder |
By testing we have found that in this way, when the concentration of dressing liquid is 80g/L, PTFE film has wash resistant
Property, but dosage is excessive（The concentration of dressing liquid reaches 200g/L）, the feel of PTFE film is harder, therefore, dressing liquid it is optimal dense
Spend for 150g/L.
Have been shown and described above the general principle of the present invention, principal character and advantage, do not depart from spirit of the invention and
On the premise of scope, the present invention also has various changes and modifications, and these changes and improvements both fall within claimed invention
Scope.
Claims (6)
- A kind of 1. method for improving PTFE film washing fastness, it is characterised in that：PTFE film is soaked in the dressing liquid of preparation, then Successively by infrared baking and clot after baking, finally effectively carried in the case where not influenceing PTFE film gas permeability and penetrability The washing fastness of the high PTFE film, the dressing liquid are that the butanone for the fluorocarbon class waterproofing agent that concentration is 100-180g/L is molten Liquid.
- 2. the method according to claim 1 for improving PTFE film washing fastness, it is characterised in that：The fluorocarbon class Waterproofing agent is C6 class fluorocarbon waterproofing agents or C8 class fluorocarbon waterproofing agents.
- 3. the method according to claim 2 for improving PTFE film washing fastness, it is characterised in that：The C6 classes carbon fluorination is closed Thing waterproofing agent is preferably C6 waterproofing agents F-811.
- 4. the method according to claim 2 for improving PTFE film washing fastness, it is characterised in that：The C8 classes carbon fluorination is closed Thing waterproofing agent is preferably C8 waterproofing agents F-371.
- 5. the method according to claim 1 for improving PTFE film washing fastness, it is characterised in that：The concentration of the dressing liquid Preferably 150g/L.
- 6. the method according to claim 1 for improving PTFE film washing fastness, it is characterised in that：The baking temperature is preferred For 220-237 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106790.1A CN107793583A (en) | 2017-11-10 | 2017-11-10 | A kind of method for improving PTFE film washing fastness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711106790.1A CN107793583A (en) | 2017-11-10 | 2017-11-10 | A kind of method for improving PTFE film washing fastness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107793583A true CN107793583A (en) | 2018-03-13 |
Family
ID=61534831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711106790.1A Pending CN107793583A (en) | 2017-11-10 | 2017-11-10 | A kind of method for improving PTFE film washing fastness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107793583A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144504A (en) * | 1994-03-30 | 1997-03-05 | W·L·戈尔及同仁股份有限公司 | Fabric laminates |
| CN1702233A (en) * | 2005-05-24 | 2005-11-30 | 梁殿魁 | Flame retardant waterproof canvas and its preparation process |
| CN105506992A (en) * | 2016-01-22 | 2016-04-20 | 河北宁纺集团有限责任公司 | Method for processing fluoride-free hydrostatic-pressure-resisting durable aterproof pure cotton canvas |
-
2017
- 2017-11-10 CN CN201711106790.1A patent/CN107793583A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144504A (en) * | 1994-03-30 | 1997-03-05 | W·L·戈尔及同仁股份有限公司 | Fabric laminates |
| CN1702233A (en) * | 2005-05-24 | 2005-11-30 | 梁殿魁 | Flame retardant waterproof canvas and its preparation process |
| CN105506992A (en) * | 2016-01-22 | 2016-04-20 | 河北宁纺集团有限责任公司 | Method for processing fluoride-free hydrostatic-pressure-resisting durable aterproof pure cotton canvas |
Non-Patent Citations (2)
| Title |
|---|
| 张之秋等: "防污自洁建筑膜材的制备 ", 《天津工业大学学报》 * |
| 张之秋等: "防污自洁建筑膜材的制备", 《天津工业大学学报》 * |
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Application publication date: 20180313 |
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