Preparation method for ultraviolet aging-resistant breathable film

A breathable film, UV-resistant technology, applied in flat products, applications, household appliances, etc., can solve problems such as restricting popularization and application, weakening the effect of adjusting humidity, etc., to widen the application range, improve water vapor permeability, improve resistance The effect of UV aging

Inactive Publication Date: 2019-10-01
含山县金中环装饰材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this invention effectively improves the sound insulation performance and aging resistance of the air-permeable membrane, it increases the basis weight of the air-permeable membrane, and its function of regulating humidity is bound to be weakened. Therefore, it limits its popularization and application to a large extent.

Method used

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  • Preparation method for ultraviolet aging-resistant breathable film

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Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method for an ultraviolet aging-resistant breathable film, comprising the steps of:

[0032] (1) Preparation of modified composite filler:

[0033] a. Mix octadecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, and deionized water according to the weight ratio of 1:2.3:82, then put them into the stirring tank, and heat After reaching 70°C, put the nano-silica into the stirring tank, stir at 70°C for 30 minutes, centrifuge to remove the supernatant, wash with sterile water for 3 times, and dry to obtain powder A;

[0034] b. Put the powder A and nano-titanium dioxide obtained in operation a into the bead mill for grinding according to the weight ratio of 1:7, and after grinding for 23 minutes, get the powder B for subsequent use;

[0035] c. Pour the ammonium fluoride solution with a mass fraction of 3% into the electrolytic cell, add ammonia water dropwise to adjust the pH of the solution to 7.8, then immerse the powder B ob...

Embodiment 2

[0053] A preparation method for an ultraviolet aging-resistant breathable film, comprising the steps of:

[0054] (1) Preparation of modified composite filler:

[0055] a. Mix octadecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, and deionized water in a weight ratio of 1.5:2.35:86, then put them into the stirring tank, and heat After reaching 80°C, put nano silicon dioxide into a stirring tank, stir at 80°C for 35 minutes, centrifuge to remove the supernatant, wash with sterile water for 4 times, and dry to obtain powder A;

[0056] b. The powder A obtained in operation a and the nano-titanium dioxide are put into the bead mill for grinding according to the weight ratio of 1.5:7.5, and after grinding for 24 minutes, the powder B is obtained for subsequent use;

[0057] c. Pour the ammonium fluoride solution with a mass fraction of 4% into the electrolytic cell, add ammonia water dropwise to adjust the pH of the solution to 7.9, then immerse t...

Embodiment 3

[0075] A preparation method for an ultraviolet aging-resistant breathable film, comprising the steps of:

[0076] (1) Preparation of modified composite filler:

[0077] a. Mix octadecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, and deionized water in a weight ratio of 2:2.4:90, then put them into the stirring tank, and heat After reaching 90°C, put the nano-silica into the stirring tank, stir at 90°C for 40 minutes, centrifuge to remove the supernatant, wash with sterile water for 5 times, and dry to obtain powder A;

[0078] b. Put the powder A and nano-titanium dioxide obtained in operation a into the bead mill for grinding according to the weight ratio of 2:8, and after grinding for 25 minutes, get the powder B for subsequent use;

[0079] c. Pour the ammonium fluoride solution with a mass fraction of 5% into the electrolytic cell, add ammonia water dropwise to adjust the pH of the solution to 8, then immerse the powder B obtained in oper...

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Abstract

The invention discloses a preparation method for an ultraviolet aging-resistant breathable film, and belongs to the technical field of preparation of breathable films. The preparation method comprisesthe following steps of 1, preparation of a modified composite filler; 2, preparation of a melt body; 3, cover treatment; 4, cold plasma treatment; 5, melting and stretching; 6, setting. By means of the preparation method for the ultraviolet aging-resistant breathable film, the water steam permeating rate, tensile strength and hydrostatic pressure resistance of the breathable film are effectivelyimproved, the ultraviolet aging resistance of the breathable film is improved and enhanced, and the application range of the breathable film is widened.

Description

technical field [0001] The invention belongs to the technical field of breathable membrane preparation, and in particular relates to a preparation method of an ultraviolet aging-resistant breathable membrane. Background technique [0002] Waterproof and breathable membrane is a new type of polymer waterproof material. In terms of production process, the technical requirements of waterproof and breathable membranes are much higher than those of ordinary waterproof materials; at the same time, in terms of quality, waterproof and breathable membranes also have functional characteristics that other waterproof materials do not have. Polytetrafluoroethylene, also known as waterproof and breathable membrane, is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acid and alkali, and various organic solvents, and is almost insoluble in all solvents. At the same time, the waterproof and breathable membrane has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08K9/04C08K9/02C08K3/22C08K3/36C08J5/18B29D7/01
CPCB29D7/01C08J3/12C08J3/28C08J5/18C08J2327/18C08K3/36C08K9/02C08K9/04C08K2003/2241C08K2201/011
Inventor 郭坤
Owner 含山县金中环装饰材料有限公司
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