Light heat-insulation flame-retardant composite natural polymer foam material as well as preparation method and application thereof

A natural polymer, flame retardant composite technology, applied in the field of foam materials, can solve the problems of high cost and complex preparation process, and achieve the effect of excellent sound absorption performance, wide source and reducing environmental pollution.

Pending Publication Date: 2022-03-25
宋金华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process involved in this type of composite material is relatively complicated, and the corresponding cost is also high. Most of them are still in the laboratory research stage, and there is still a long way to go before the real large-scale application.

Method used

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  • Light heat-insulation flame-retardant composite natural polymer foam material as well as preparation method and application thereof
  • Light heat-insulation flame-retardant composite natural polymer foam material as well as preparation method and application thereof
  • Light heat-insulation flame-retardant composite natural polymer foam material as well as preparation method and application thereof

Examples

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preparation example Construction

[0050] see figure 1 , the present invention provides a method for preparing a lightweight heat-insulating and flame-retardant natural polymer composite foam material, which is suitable for materials with sol-gel properties, comprising the following steps:

[0051] S1, raw material ratio, by weight ratio, provide 1-50 parts of natural polymer material solute, 50-99 parts of solvent water, 6-50 parts of auxiliary materials, and 0.01-10 parts of surfactant.

[0052] Natural polymers can be derived from animals, plants, microorganisms and marine organisms, and have sol-gel properties. Suitable examples include agar, carrageenan, alginic acid, pectin, gelatin, locust bean gum, gum arabic, modified cellulose , nanocellulose, modified starch and its derivatives, xanthan gum, gellan gum or other similar materials. Pure natural polymer foam material structure such as figure 2 shown.

[0053] The auxiliary materials include inorganic fillers and auxiliary agents, the inorganic fille...

Embodiment 1

[0074] A method for preparing a light heat-insulating and flame-retardant natural polymer composite foam material, comprising the following steps:

[0075] S1, the ratio of raw materials, by weight, provides 15 parts of natural polymer material solute, 85 parts of solvent water, 6 parts of auxiliary materials, and 5 parts of surfactant;

[0076] S2, slurry preparation, dissolving the solute in a solvent to form a sol, adding a surfactant, and stirring for 25 minutes to obtain a gel slurry;

[0077] S3, gel foaming, directly introducing a gas phase into the liquid phase of the gel slurry for foaming, and mixing the gas phase in the liquid phase uniformly and fully to obtain a liquid foam;

[0078] S4, compound molding, the liquid foam of S3 is stirred evenly and placed in the mold to obtain the liquid foam of preset shape;

[0079] S5, curing and drying, the liquid foam of S4 is solidified and dried to obtain a light heat-insulating and flame-retardant composite natural polyme...

Embodiment 2

[0090] The only difference from Example 1 is that the selected inorganic filler is expanded perlite.

[0091] The structure of the natural macromolecule-expanded perlite composite material prepared in embodiment 2 is uniform, as micrograph ( Figure 7 ) shows that the perlite is uniformly dispersed in the pore structure of the natural polymer foam material; the natural polymer foam matrix is ​​surrounded by the perlite, and the natural polymer cell structure is basically intact.

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Abstract

The invention relates to a light heat-insulation flame-retardant composite natural polymer foam material as well as a preparation method and application thereof, and relates to the technical field of foam materials. According to the preparation method of the light heat-insulating flame-retardant composite natural polymer foam material, high-temperature and high-pressure conditions are not needed, so that the production energy consumption is reduced; the processing mode is simple, and the production cost is reduced; no harmful substance is generated in the preparation process, the natural polymer material is completely biodegraded, high-temperature degradation under industrial conditions is not needed, and urban solid waste treatment pressure and environmental pollution are reduced. According to the light heat-insulation flame-retardant composite natural polymer foam material prepared by the preparation method, the mechanical and flame-retardant properties are improved by adding the natural polymer material of the inorganic filler; the interior of the material is of a fully-perforated structure, and good heat preservation and heat insulation performance is achieved; and the material has good fluidity (formability), is convenient to construct and popularize, and can be applied to temporary buildings (such as temporary work sheds, sample houses and exhibition rooms) and indoor and closed environments (such as fireproof doors, cold storage wall body middle layers and the like).

Description

technical field [0001] The invention relates to the technical field of foam materials, in particular to a light heat-insulating and flame-retardant composite natural polymer foam material and its preparation method and application. Background technique [0002] With the rapid development of society and the rapid improvement of people's quality of life, it is more and more common to use heating, air conditioning and floor heating to improve comfort, but this has also led to a sharp increase in energy consumption in residential and commercial buildings. As an important research field of building energy conservation, building wall insulation materials have become the focus of global research on insulation materials. The performance of the thermal insulation layer in the external wall thermal insulation system determines the thermal insulation efficiency of the wall, which is the key to building energy conservation and is also crucial in avoiding fire risks. [0003] Due to the...

Claims

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Application Information

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IPC IPC(8): C08L5/00C08L5/12C08K7/26C08K7/28C08K5/42C08K5/19C08J9/12
CPCC08J9/122C08J2305/00C08J2305/12C08J2203/06C08K7/26C08K5/42C08K7/28C08K5/19
Inventor 宋金华维吉尼亚宋行罗义琳
Owner 宋金华
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