CN101956323A - Preparation method for hydrophobic fabrics - Google Patents
Preparation method for hydrophobic fabrics Download PDFInfo
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- CN101956323A CN101956323A CN 201010512748 CN201010512748A CN101956323A CN 101956323 A CN101956323 A CN 101956323A CN 201010512748 CN201010512748 CN 201010512748 CN 201010512748 A CN201010512748 A CN 201010512748A CN 101956323 A CN101956323 A CN 101956323A
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- preparation
- silicone oil
- trifluoro propyl
- methyl trifluoro
- lining
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Abstract
The invention relates to a preparation method for hydrophobic fabrics. The preparation method for the hydrophobic fabric is characterized by comprising the following steps of: (1) uniformly mixing methyl trifluoro-propyl silicone oil and a polyurethane adhesive in a weight ratio of 1:1-2 to prepare soak solution; and (2) putting the fabrics into the soak solution, soaking for 5 to 8 hours, and drying the mixture at the temperature of between 50 and 60 DEG C. The preparation method has the advantages that: the methyl trifluoro-propyl silicone oil is crosslinked with hydroxyl in fibers to form an organic silicon molecular film so as to effectively prevent water from invading; and a bilayer protective film is formed by combining the methyl trifluoro-propyl silicone oil with the polyurethane adhesive to improve the hydrophobicity of the fibers and maintain the air permeability of the fibers at the same time. The preparation method has the advantages of simple operation, easy mastering, good effect and suitability for large, middle and small-sized enterprises.
Description
Technical field
The present invention relates to a kind of preparation method of water-repellent fabrics lining.
Background technology
At present, because the need of work of special trade and the quickening of people's rhythm of life, the clothes with good water resistance are more and more favored, and they not only can waterproof, can also effectively prevent contamination, and are easy to clean.The waterproof material that uses the earliest on the clothes generally all contains the composition of plastics or rubber, so gas permeability can be affected.Along with organic macromolecule develops rapidly, high molecular polymer is used to the processing of water proofing property garment material, make lining when satisfying water proofing property, take into account gas permeability, but be difficult to reach the equalization point an of the best, so waterproof fabrics now mostly is to sacrifice gas permeability and save water proofing property from damage, so waterproof clothing gas permeability in dress is not fine.
Report that silane can react [list of references Bieanda with hydroxylated material such as cellulose fibre, E, Ansell, M.The Effect of SilaneTreatment on the Mechanical and Physical Properties of Sisal-Epoxy Composites[J] .Composites Science and Technology, 1991,41 (3): 165] as long as have the water of trace to play catalytic action at hydrophilic cellulose surface, hydroxyl in the cellulose just can with the Si-C in the silane, Si-Si, the Si-N key forms chemical bond.Silane carries out self-crosslinking with the fiber-reactive group and combines, be formed with elasticity and soft fine and close organosilicon molecular film, can give fiber special surface nature, make lining obtain good flexibility and flatness, improve the hydrophilicity of lining, improve smoothness, flexibility and the antistatic effect of page.
Summary of the invention
The present invention provides a kind of preparation method who takes into account the water-repellent fabrics lining of water proofing property and gas permeability in order to overcome the deficiency of above technical elements.
The present invention realizes in the following manner.
A kind of preparation method of water-repellent fabrics lining is characterized in that adopting following steps:
(1) methyl trifluoro propyl silicone oil and polyurethane binder are mixed by weight 1:1-2, make soak;
(2) fabric panel is put into soak, soaked 5-8 hour, in 50-60 ℃ of oven dry down.
Described method is characterized in that described methyl trifluoro propyl silicone oil contains methyl trifluoro propyl siloxanes 1-2wt%, and the relative molecular mass of described methyl trifluoro propyl siloxanes is 190000-210000, contains 50% trifluoro propyl substituting group.
Described method is characterized in that described polyurethane binder contains polyurethane 10-20wt%, and described polyurethane polyureas is right to be 300-2500.
Described method is characterized in that described fabric panel is cotton, flax, hemp or bluish dogbane lining.
Methyl trifluoro propyl silicone oil contains methyl trifluoro propyl siloxanes 1-2wt%.The relative molecular mass of methyl trifluoro propyl siloxanes is 190000-210000, is called trifluoro propyl methyl-silicone oil (50% trifluoro propyl) again; The trifluoro propyl methyl polysiloxane; Fluoroalkylsiloxane polymer; Methyl-silicone oil (50% trifluoro propyl substituting group) contains the Si-C key in the molecule.Owing to contain a certain amount of moisture in the face liber, so under the catalytic action of water, the hydroxyl reaction in Si-C key and the face liber is at the organosilicon molecular film of fiber surface formation one deck elastomeric flexible densification, make extraneous moisture be not easy to invade fiber, reached good waterproof effect.And methyl trifluoro propyl silicone oil is owing to introduced fluorine atom, and surface energy descends, and water contact angle increases, and hydrophobicity increases, and has strengthened hydrophobicity performance greatly.Methyl trifluoro propyl silicone oil is that fiber is handled, because the space between the fiber does not have active group, thus can not react, just can film forming yet, kept the gas permeability of lining.
The polyurethane full name is a polyurethanes, it is the general designation that contains the macromolecular compound of repetition carbamate groups on the main chain, it is to be formed by organic diisocyanate or polyisocyanates and dihydroxy or polyol addition polymerization, selects the polyurethane of degree of polymerization scope between 300-2500 among the present invention for use.Polyurethane adhesive be meant in strand, contain isocyanate group (NCO) and carbamate groups (adhesive NH-COO-), thus polyurethane adhesive show the height activity and polarity.Base material such as fabric, timber is by fibrous, and fiber has the certain moisture rate, and often contain ehter bond, ester bond, amido link isopolarity key, and carboxyl, hydroxyl etc.Water and hydroxyl easily and in the polyurethane adhesive-the NCO radical reaction, form chemical bonds such as firm ammonia ester bond and urea key, and form hydrogen bond between polar group in the fiber and the polar group in the glue, and between the also easy infiltrated fiber of adhesive molecule, the water resistance of further fortifying fibre.
Beneficial effect of the present invention: the hydroxyl in methyl trifluoro propyl silicone oil and the fiber is crosslinked; form the organosilicon molecular film, the effectively intrusion of anti-sealing forms the double shielding film with polyurethane adhesive; improve the hydrophobic performance of fiber, kept the gas permeability of fiber simultaneously.Method of the present invention is simple to operate, is easy to grasp, and is effective, is applicable to large, medium and small enterprise.
The specific embodiment:
Embodiment 1
(1) be that methyl trifluoro propyl silicone oil and polyurethane binder of 1:1 mixes with weight ratio, be prepared into soak, polyurethane binder contains polyurethane 10wt%;
(2) cotton face fabric is put into soak, soaked 5 hours,, make finished product in 50 ℃ of oven dry down.
Embodiment 2
(1) be that methyl trifluoro propyl silicone oil and polyurethane binder of 1:2 mixes with weight ratio, be prepared into soak, polyurethane binder contains polyurethane 20wt%;
(2) flax lining is put into soak, soaked 8 hours,, make finished product in 60 ℃ of oven dry down.
Hydrophobic and permeability is tested
Choose commercially available common hydrophobic fabric lining and organize in contrast, the water-repellent fabrics lining made from method of the present invention carries out the contrast test experiment of hydrophobicity and gas permeability.
The hydrophobic performance test
Use rain drop test to test hydrophobic performance.Prepare two water sucting plates with identical table area, equal volume and weight, fill up hydrophobic lining rear respectively in commercially available common hydrophobic lining and the inventive method making, current with uniform pressure spray sample continuously at distance sample 30cm place, continue spray 3 hours.The weight of two water sucting plates of weighing then.Find after the weighing, pad has increased by 0.98% in the water sucting plate weight at commercially available common hydrophobic lining rear, pad has increased by 0.95% in the water sucting plate weight at the hydrophobic lining of the present invention rear, as seen, the hydrophobic lining that method of the present invention is made than commercially available hydrophobic lining at slight superiority aspect the hydrophobic performance.
The permeability test
Get the beaker of two same capabilities, fill with the water of same amount respectively, two kinds of fabrics are covered respectively on the rim of a cup also fix, the water in the cup can only be volatilized, respectively the weight and the record of weighing two covering devices by the fabric at rim of a cup place.At relative humidity of atomsphere 50%, under the condition that temperature is 21 ℃, measure the steam vapour amount of every day, i.e. rate of perviousness by the fabric on the cup that covers filled with water.Recording commercially available hydrophobic lining rate of perviousness is 3500 gram/square metre skies, and the hydrophobic lining rate of perviousness that the inventive method is made is 7900 gram/square metre skies.As seen, the hydrophobic lining of method making of the present invention is accounting for very big advantage than commercially available hydrophobic lining aspect the permeability.
Claims (4)
1. the preparation method of a water-repellent fabrics lining is characterized in that adopting following steps:
(1) methyl trifluoro propyl silicone oil and polyurethane binder are mixed by weight 1:1-2, make soak;
(2) fabric panel is put into soak, soaked 5-8 hour, in 50-60 ℃ of oven dry down.
2. method according to claim 1 is characterized in that described methyl trifluoro propyl silicone oil contains methyl trifluoro propyl siloxanes 1-2wt%, and the relative molecular mass of described methyl trifluoro propyl siloxanes is 190000-210000, contains 50% trifluoro propyl substituting group.
3. method according to claim 1 is characterized in that described polyurethane binder contains polyurethane 10-20wt%, and described polyurethane polyureas is right to be 300-2500.
4. method according to claim 1 is characterized in that described fabric panel is cotton, flax, hemp or bluish dogbane lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010512748 CN101956323A (en) | 2010-10-20 | 2010-10-20 | Preparation method for hydrophobic fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010512748 CN101956323A (en) | 2010-10-20 | 2010-10-20 | Preparation method for hydrophobic fabrics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101956323A true CN101956323A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010512748 Pending CN101956323A (en) | 2010-10-20 | 2010-10-20 | Preparation method for hydrophobic fabrics |
Country Status (1)
| Country | Link |
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| CN (1) | CN101956323A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344132A (en) * | 2015-10-22 | 2016-02-24 | 东北林业大学 | Method for preparing super-hydrophobic super-oleophylic mesh fabric material based on single component polyurethane |
| CN112400044A (en) * | 2018-07-18 | 2021-02-23 | 普莱玛有限公司 | Air-permeable anti-hydrostatic structure |
| CN115341394A (en) * | 2022-09-16 | 2022-11-15 | 高梵(浙江)信息技术有限公司 | Velvet fabric surface finishing agent and preparation method thereof |
| CN115652613A (en) * | 2022-10-08 | 2023-01-31 | 高梵(浙江)信息技术有限公司 | Silver ion antibacterial fabric and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001055456A1 (en) * | 2000-01-27 | 2001-08-02 | Bayer Aktiengesellschaft | Polysiloxanes used for hydrophobing |
| CN1310749A (en) * | 1998-06-30 | 2001-08-29 | 罗狄亚化学公司 | Crosslinkable silicone composition useful, in particular for producing water-repellent and/or oil-repellent coating and/or impregnation with low surface energy |
| CN101307180A (en) * | 2008-07-02 | 2008-11-19 | 天津大学 | Cationic polyurethane and modified silicone oil composite aqueous dispersion and its preparation and application |
-
2010
- 2010-10-20 CN CN 201010512748 patent/CN101956323A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310749A (en) * | 1998-06-30 | 2001-08-29 | 罗狄亚化学公司 | Crosslinkable silicone composition useful, in particular for producing water-repellent and/or oil-repellent coating and/or impregnation with low surface energy |
| WO2001055456A1 (en) * | 2000-01-27 | 2001-08-02 | Bayer Aktiengesellschaft | Polysiloxanes used for hydrophobing |
| CN101307180A (en) * | 2008-07-02 | 2008-11-19 | 天津大学 | Cationic polyurethane and modified silicone oil composite aqueous dispersion and its preparation and application |
Non-Patent Citations (1)
| Title |
|---|
| 《有机硅及其应用》 19900531 吴森纪 特殊用途类硅油 科学技术文献出版社 第78页第6-13行 , 第1版 1 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344132A (en) * | 2015-10-22 | 2016-02-24 | 东北林业大学 | Method for preparing super-hydrophobic super-oleophylic mesh fabric material based on single component polyurethane |
| CN112400044A (en) * | 2018-07-18 | 2021-02-23 | 普莱玛有限公司 | Air-permeable anti-hydrostatic structure |
| CN115341394A (en) * | 2022-09-16 | 2022-11-15 | 高梵(浙江)信息技术有限公司 | Velvet fabric surface finishing agent and preparation method thereof |
| CN115652613A (en) * | 2022-10-08 | 2023-01-31 | 高梵(浙江)信息技术有限公司 | Silver ion antibacterial fabric and production method thereof |
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Open date: 20110126 |