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Method for preparing high air tightness antibacterial reinforced membrane by using straws

A high-air-tight, reinforced membrane technology, used in textiles and papermaking, fiber processing, raw material separation, etc., can solve problems such as environmental pollution and waste of biological resources, achieve short dissolution time, meet production and living needs, and avoid waste. Effect

Inactive Publication Date: 2013-02-20
湖北顶新环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for a few straws that are used as livestock feed, farm manure and rural fuel, most straws are stacked or even directly burned, which not only wastes a lot of biological resources, but also seriously pollutes the environment

Method used

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  • Method for preparing high air tightness antibacterial reinforced membrane by using straws
  • Method for preparing high air tightness antibacterial reinforced membrane by using straws
  • Method for preparing high air tightness antibacterial reinforced membrane by using straws

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a highly airtight antibacterial enhanced film with straw, comprising the steps of:

[0034] (1) Prepare straw solution:

[0035] Wash and chop the straw (the straw is rice straw) into short stems with a length of 4-6 mm. Under the pressure of 1.3 MPa and 80 seconds, steam explosion (using steam explosion equipment, or steam explosion equipment) Process to obtain the explosive product;

[0036] Rinse the above crushed product with hydrogen peroxide to make it uniform in color, then dry and pulverize it until it can pass through a 60-mesh sieve to obtain straw powder for use;

[0037] Take the ionic liquid and heat it until it completely melts, add straw powder and mix, and stir at a constant temperature of 100°C for 2-3 hours until the solution becomes transparent to obtain the straw liquid; the mass of the straw powder in the straw liquid (ionic liquid straw solution) The percentage concentration is 10%.

[0038] Add inorganic silver nano-silve...

Embodiment 2

[0052] A method for preparing a highly airtight antibacterial enhanced film with straw, comprising the steps of:

[0053] (1) Prepare straw solution:

[0054] Wash and chop wheat straw into short stems with a length of 4 to 6 mm, and steam-explode (using a steam-explosion device, or steam-explosion equipment) under a pressure of 1.2 MPa for 60 seconds to obtain an explosion-crush product;

[0055]Rinse the above crushed product with hydrogen peroxide to make it uniform in color, then dry and pulverize it until it can pass through a 60-mesh sieve to obtain straw powder for use;

[0056] Take ionic liquid [1-butyl-3-methylimidazole chloride ([bmim]Cl)] and heat until it completely melts, add straw powder and mix, and stir at 100°C for 2-3 hours until the solution becomes transparent, A straw liquid is obtained; the mass percent concentration of straw powder in the straw liquid (ionic liquid straw solution) is 8%.

[0057] Add inorganic silver nano-silver antibacterial powder ...

Embodiment 3

[0063] A method for preparing a highly airtight antibacterial enhanced film with straw, comprising the steps of:

[0064] (1) Prepare straw solution:

[0065] Wash and chop the corn stalks into 4-6 mm long short stems, and process them by steam explosion (using a steam explosion device, or steam explosion equipment) under the pressure of 1.5MPa for 90s to obtain the explosive crushing product;

[0066] Rinse the above crushed product with hydrogen peroxide to make it uniform in color, then dry and pulverize it until it can pass through a 60-mesh sieve to obtain straw powder for use;

[0067] Take the ionic liquid and heat it until it completely melts, add straw powder and mix, and stir at a constant temperature of 100°C for 2-3 hours until the solution becomes transparent to obtain the straw liquid; the mass of the straw powder in the straw liquid (ionic liquid straw solution) The percentage concentration is 6%.

[0068] Add inorganic silver nano-silver antibacterial powder...

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Abstract

The present invention relates to a method for preparing a high air tightness antibacterial reinforced membrane by using straws. The method is characterized by comprising the following steps: (1) preparing a straw solution: carrying out a steam decrepitation treatment on straws to obtain a decrepitation product, carrying out hydrogen peroxide rinsing and drying to obtain straw powder, taking an ion liquid and heating until the ion liquid is completely molten, adding the straw powder to mix to obtain a straw liquid, and adding inorganic silver nanometer silver antibacterial powder to the prepared straw liquid to obtain the straw solution; and (2) preparing a high air tightness antibacterial reinforced membrane: taking a cellulose product and flatly fixing on a glass plate, tanking the cellulose product from an oven, uniformly coating the straw solution obtained from the step (1) on the cellulose product, soaking for 2-3 hours by using water after cooling, washing until the ion liquid is completely precipitated, and carrying out open-air drying to obtain the high air tightness antibacterial reinforced membrane. According to the present invention, the method has characteristics of simple process, green property, and no pollution, and the prepared membrane has characteristics of high air tightness, high moisture permeability, and good mechanical property.

Description

technical field [0001] The invention relates to a method for preparing a highly airtight antibacterial enhanced film with straw. Background technique [0002] The approach and method of straw recycling in my country has been a major technical issue that has attracted much attention for many years. According to incomplete statistics, the world can produce nearly 2 billion tons of straw every year, and the annual output of various crop straws in my country is about 640 million tons. With the increase of crop yield, the straw production will also increase. Except for a few straws that are used as livestock feed, manure and fuel in rural areas, most straws are piled up or even directly burned, which not only wastes a lot of biological resources, but also seriously pollutes the environment. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing a highly airtight antibacterial enhanced film from straw, and the airtight antib...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08J5/18C08L97/00C08K3/08C08K5/053D06M15/01D06M11/83D06M13/148D21B1/36
Inventor 郭密王晓广周晓洁张会娟
Owner 湖北顶新环保新材料有限公司
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