A method for preparing foam material based on ozone-modified bagasse thermomechanical pulp

A technology for thermally refining mechanical pulp and foam materials, which is applied in pulp beating methods, pulp bleaching, fiber raw material processing, etc., can solve the problems of high cost of bleached pulp, limited application fields of foam materials, etc. , the effect of easy to separate silk broom

Active Publication Date: 2022-08-02
佛山市新纸道环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Pulp fiber foam is usually prepared from bleached pulp. However, the high cost of bleached pulp limits the application of foam materials. Therefore, it is necessary to develop a raw material with low cost and good performance

Method used

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  • A method for preparing foam material based on ozone-modified bagasse thermomechanical pulp
  • A method for preparing foam material based on ozone-modified bagasse thermomechanical pulp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing foam material based on ozone-modified bagasse thermomechanical pulp, specifically comprising the following steps:

[0022] Step 1: take 50g of dry bagasse thermo-mechanical pulp and adjust it with distilled water to a pulp concentration of 30%, place the adjusted pulp in a stainless steel reaction tank and disperse it evenly, inject 5% ozone until the reaction is complete and then take it out;

[0023] Step 2: take the ozone-modified thermomechanical pulp with distilled water to prepare a 2% pulp consistency, place them in a PFI beater respectively, and beat the pulp to 9000r to stop;

[0024] Step 3: Take 20g of the beaten raw material and configure it into a pulp suspension with a concentration of 2%, add 4% of foaming agent A and 25% of foaming agent B, mix them evenly, and then add them to the decomposing machine. Under high-speed stirring, foam is generated.

[0025] After the wet foam is injected into the mold, it is dried at a constant temp...

Embodiment 2

[0027] A preparation method of ozone-modified bagasse thermo-mechanical pulp and foam material, which specifically comprises the following steps:

[0028] Step 1: take 50g of dry bagasse thermo-mechanical pulp and adjust it with distilled water to a pulp concentration of 30%, place the adjusted pulp in a stainless steel reaction tank and disperse it evenly, inject 5% ozone until the reaction is complete and then take it out;

[0029] Step 2: take the ozone-modified thermomechanical pulp to prepare a certain pulp consistency with distilled water, place it in a PFI beater, and beat to 9000r;

[0030] Step 3: Take 20g of the beaten raw material and configure it into a pulp suspension with a concentration of 3%, add 4% of foaming agent A and 25% of foaming agent B, mix evenly, and then add it to the decomposing machine. Under high-speed stirring, foam is generated.

[0031] After the wet foam is injected into the mold, it is dried at a constant temperature and tested after demoldi...

Embodiment 3

[0033] A preparation method of ozone-modified bagasse thermo-mechanical pulp and foam material, which specifically comprises the following steps:

[0034] Step 1: take 50g of dry bagasse thermo-mechanical pulp and adjust it with distilled water to a pulp concentration of 30%, place the adjusted pulp in a stainless steel reaction tank and disperse it evenly, inject 5% ozone until the reaction is complete and then take it out;

[0035] (2) Take the ozone-modified thermomechanical pulp to prepare a certain pulp consistency with distilled water, place it in a PFI beater, and beat to 9000r;

[0036] (3) Take 20g of the raw material after beating and configure it into a pulp suspension with a concentration of 4%, add 4% of foaming agent A and 25% of foaming agent B and mix it evenly, then add it to the decomposing machine, and under high-speed stirring, foam is generated.

[0037] After the wet foam is injected into the mold, it is dried at a constant temperature and tested after de...

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PUM

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Abstract

The invention provides a method for preparing a foam material based on ozone-modified bagasse thermomechanical pulp, which specifically includes the following steps: Step 1: take a certain amount of dry bagasse thermomechanical pulp and adjust it to a pulp concentration of 30% with distilled water ; Step 2: pass the adjusted mechanical pulp into ozone and react for a period of time; step 3: adjust the mechanical pulp obtained in step 2 to a certain concentration with distilled water and beat it; step 4: configure the mechanical pulp after beating to a concentration of After 2% of the pulp suspension, foaming agent A and foaming agent B are added and mixed evenly; Step 5: Stir the slurry obtained in Step 4 for a period of time to obtain the foam material.

Description

technical field [0001] The invention relates to the field of preparation of foam materials, in particular to a method for preparing foam materials based on ozone-modified bagasse thermomechanical pulp. Background technique [0002] Foam materials have the characteristics of light weight, high strength, good cushioning performance, and good thermal insulation and sound insulation performance, so foam materials have been widely used in industry, agriculture, construction, transportation, packaging and other fields. Generally speaking, foamed plastics (such as expanded polystyrene and polyurethane foam) are manufactured from petrochemical raw materials, which are difficult to recycle and cannot be biodegraded, so they will pollute the environment and endanger human health. According to previous research, the world generates a large amount of plastic waste every year, about 9% is recycled, 12% is incinerated, and 79% is deposited in landfills or the natural environment. Some pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H11/12D21C9/10D21C9/153D21D1/02
CPCD21H11/12D21C9/153D21D1/02D21C9/1073
Inventor 李军廖建明
Owner 佛山市新纸道环保科技有限公司
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