Flame-retardant plant fiber construction heat-insulation wall material and preparation method thereof

A plant fiber and building thermal insulation technology, applied in the field of building materials, can solve the problems of poor flame retardancy of thermal insulation materials, toxic smoke, aggravated consumption of petroleum resources, etc., and achieve the effect of solving economic development and pollution problems

Inactive Publication Date: 2011-02-02
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that the flame retardancy of polystyrene insulation materials is poor, and the smoke generated during the combustion process is toxic.
In addition,

Method used

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  • Flame-retardant plant fiber construction heat-insulation wall material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Chinese fir fiber building insulation wall material

[0023] The fast-growing Chinese fir thinning wood is cut into 3cm * 2cm * 0.2cm wood chip, boils and softens in 150 ℃ steamer with 2% NaOH solution for 6 hours. Put the cooked and softened wood chips (including all the treatment liquid) into the high-concentration disc mill to separate the fibers. Squeeze and filter (filter screen 30 mesh), extrude the treatment liquid in the fiber, and obtain the Chinese fir fiber with a concentration of 20%. The extruded treatment liquid is then used for chip treatment. Mix 70% of Chinese fir fiber pulp and 30% of chemical wood pulp (purchased in the market) into a beater (model: 6-2) for beating until the beating degree is 28°SR to achieve broomification treatment, and adjust the pulp concentration to 6%. Add carboxy-modified silicone oil 8mg / L, cationic corn starch 6mg / L, ASA 6mg / L and rosin water repellent 10mg / L to mix, then add FWR10mg / L, dicyandiamide...

Embodiment 2

[0025] Embodiment 2: bamboo fiber building insulation wall material

[0026]Cut the collected green bamboo into 3cm×1cm×0.2cm bamboo slices, cook and soften them in a steamer at 150° C. for 8 hours with 3% NaOH solution. Put the softened bamboo chips (including all the treatment liquid) into the high-concentration disc mill to separate the fibers. Squeeze and filter (filter screen 20 meshes) to squeeze out the treatment liquid in the fiber, and the concentration of the obtained bamboo fiber is 20%. The extruded treatment liquid is then used for bamboo chip treatment. 80% of bamboo fiber pulp and 20% of chemical wood pulp (purchased in the market) are mixed and put into a beater (model: 6-2) to beating to a degree of beating of 30°SR to achieve broomification treatment, and the pulp is adjusted to a concentration of 4%. Add carboxy-modified silicone oil 10mg / L, cationic corn starch 11mg / L, polyvinyl alcohol 75mg / L and rosin waterproofing agent 15mg / L and mix, then add silicon...

Embodiment 3

[0028] Embodiment 3: straw fiber building insulation wall material

[0029] The collected straw was cut into 3 cm long grass sections, and softened by steaming in a steamer at 110° C. for 5 hours with 1% NaOH solution. Put the cooked and softened grass section (including all the treatment liquid) into the high-concentration disc mill to separate the fibers. Squeeze and filter (filter screen 50 mesh), extrude the treatment liquid in the fiber, the straw fiber concentration that obtains is 20%. The extruded treatment liquid is then used for grass section treatment. Mix 60% of straw fiber pulp and 40% of chemical wood pulp (purchased in the market) into a beater (model: 6-2) for beating until the beating degree is 30°SR to achieve broomification treatment, and adjust the pulp concentration to 5%. Add cationic corn starch 20mg / L, polyvinyl alcohol 115mg / L and rosin water repellent 15mg / L to mix, then add silicon dioxide 3g / L and sodium silicate 20g / L to mix, and add alumin...

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Abstract

The invention discloses a method for preparing a flame-retardant plant fiber construction heat-insulation wall material. Bamboo, wood and crop straw are taken as raw materials, and the method comprises the following steps of: performing softening treatment, fiber separation, pulp concentration, fiber fibrillation, enhancement treatment, waterproof treatment and flame retardant treatment, injecting a foaming agent and foaming solution through a method for mechanically stirring to introduce air into liquid for foaming; and injecting the foamed solution into a container, dehydrating, drying and setting, sawing into plates, and performing surface coating treatment, drying and other technology so as to prepare the wall material. The method makes branch resources of wood, bosky minor-diameter bamboo, bamboo processing leftover materials and the crop straw become high-additional value high-efficiency construction heat-insulation materials.

Description

technical field [0001] The invention belongs to the field of building materials, and more specifically relates to a preparation method of a flame-retardant plant fiber building thermal insulation wall material. Background technique [0002] In terms of building energy conservation, according to statistical analysis, about 36% of my country's annual energy consumption is used for indoor heating or cooling. The main reason is that the thermal insulation performance of most buildings in our country is poor, which cannot meet the "Regulations on the Administration of Energy Conservation of Civil Buildings" implemented since 2006. From 2000 to 2004, only 58.53% of projects nationwide were designed according to energy-saving standards, and only 23.25% of projects were built according to energy-saving standards. In older buildings, this percentage is even lower. To this end, my country has launched a large-scale building energy-saving renovation project, commonly known as the "cl...

Claims

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Application Information

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IPC IPC(8): C04B16/02C04B18/24C04B41/50
CPCY02W30/91
Inventor 谢拥群刘景宏
Owner FUJIAN AGRI & FORESTRY UNIV
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