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Processing method for producing formaldehyde-free environmentally-friendly ecological board from rice straw

A processing method and technology of ecological boards, which are applied in wood processing appliances, applications, household components, etc., can solve the problems of non-environmental fiberboards such as fiberboards, and achieve the effects of low cost, strong fireproof and flame retardant capabilities, and simple and easy methods

Inactive Publication Date: 2019-06-18
吴春梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fiberboard produced by the traditional method has shortcomings such as fire prevention and waterproof, especially the non-environmental protection of the fiberboard produced with adhesives such as urea-formaldehyde resin is the biggest obstacle to the application of fiberboard
Therefore, the importance of wood boards is reflected, but there are no forests for human mining at present, trees will become precious, and rice straw is a good substitute

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The present invention provides the following technical scheme: a processing method for producing formaldehyde-free environmental protection ecological board by using rice straw, which is characterized in that it comprises the following steps:

[0024] S1: Clean up the straw: first use tap water to clean and remove the soil and dust of the rice straw, and then use the blast drying oven to dry the rice straw to a water content of 5% at 80°C;

[0025] S2: crushing straw: the cleaned and dried straw is crushed and sieved by a pulverizer, and the powder with a particle size of about 50 is selected for use;

[0026] S3: Modified straw: soak the crushed straw in 5% dilute hydrochloric acid solution for 8 hours, filter, and finally dry it in a blast drying oven until the moisture content is lower than 5%.

[0027] S4: Straw material: Disperse the modified straw in glycerol, then add hard resin, raise the temperature to 110°C, keep the temperature for three hours and let it cool...

Embodiment 2

[0031] The present invention provides the following technical scheme: a processing method for producing formaldehyde-free environmental protection ecological board by using rice straw, which is characterized in that it comprises the following steps:

[0032] S1: Clean up the straw: first use tap water to clean and remove the soil and dust of the rice straw, and then use the blast drying oven to dry the rice straw to a water content of 5% at 80°C;

[0033] S2: Crushing the straw: the cleaned and dried straw is pulverized and sieved by a pulverizer, and the powder with a particle size of about 50um is selected for use;

[0034] S3: Modified straw: soak the crushed straw in 5% dilute hydrochloric acid solution for 8 hours, filter, and finally dry it in a blast drying oven until the moisture content is lower than 5%.

[0035] S4: Straw material: Disperse the modified straw in glycerol, add hard resin, raise the temperature to 120°C, keep the temperature for three hours and let it ...

Embodiment 3

[0039] The present invention provides the following technical scheme: a processing method for producing formaldehyde-free environmental protection ecological board by using rice straw, which is characterized in that it comprises the following steps:

[0040] S1: Clean up the straw: first use tap water to clean and remove the soil and dust of the rice straw, and then use a blast drying oven to dry the rice straw to a water content of 10% at 60°C;

[0041] S2: Crushing the straw: the cleaned and dried straw is pulverized and sieved by a pulverizer, and the powder with a particle size of about 50um is selected for use;

[0042] S3: Modified straw: soak the crushed straw in 5% dilute hydrochloric acid solution for 5 hours, filter, and finally dry it in a blast drying oven until the moisture content is lower than 5%.

[0043] S4: Straw material: Disperse the modified straw in glycerol, then add hard resin, raise the temperature to 110°C, keep the temperature for three hours and let i...

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Abstract

The invention discloses a processing method for producing a formaldehyde-free environmentally-friendly ecological board from rice straw, and belongs to the field of ecological boards. The processing method comprises the following steps of S1, cleaning straw; S2, crushing the straw; S3, modifying the straw; S4, preparing straw material; and S5, feeding the straw material, bamboo powder material, adhesive material, flame retardant material, calcium carbonate, magnesium hydroxide, nano sponge, carboxymethyl cellulose, glass fiber, water and ethyl alcohol in a stirrer, performing uniform stirring,then performing laying, prepressing and hot-pressing, and finally sawing edges, thereby obtaining the ecological board. The formaldehyde-free environmentally-friendly ecological board produced according to the processing method has the advantages that the straw is recycled, replaces wood, does not contain harmful substances, can resist fire and water, has certain sound absorption performance, protects the ecological environment, and increases the social benefits.

Description

technical field [0001] The invention relates to the field of ecological boards, and more specifically relates to a processing method for producing formaldehyde-free environmentally friendly ecological boards by using rice straw. Background technique [0002] my country is the world's largest producer and consumer of fiberboard, and has become the fastest growing country and exporter of fiberboard in the world. However, the fiberboard produced by the traditional method has disadvantages such as fire prevention and waterproof, especially the non-environmental protection of the fiberboard produced with adhesives such as urea-formaldehyde resin is the biggest obstacle to the application of fiberboard. Therefore, it reflects the importance of wood boards, but there are no forests for human mining at present, and trees will become precious, and rice straw is a good substitute. my country can produce 700 million tons of straw every year. According to incomplete statistics, less th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/00B27N3/08C08L97/02C08K13/04C08K7/14C08K3/26C08K3/22C08K3/34C08K3/36
Inventor 吴春梅韩祖丽陈羽玲庞正风卢明康薛雨莎
Owner 吴春梅
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