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Sodium carboxymethyl cellulose/chitosan-base composite moisture control material, and preparation and application thereof

A technology of sodium carboxymethyl cellulose and humidity-controlling materials, which is applied in the field of humidity-controlling materials and its preparation, can solve problems such as composite materials that have not been seen, and achieve the expansion of application fields, safe use, economical and environmental protection, and good moisture absorption and release performance Effect

Inactive Publication Date: 2013-12-25
EAST CHINA UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] So far, there is no literature report on the sodium carboxymethyl cellulose / chitin-based composite material, let alone the application of the composite material to the preparation of humidity-controlling materials

Method used

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  • Sodium carboxymethyl cellulose/chitosan-base composite moisture control material, and preparation and application thereof

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Embodiment

[0032] Chitin, sodium carboxymethyl cellulose, lithium chloride, B-type silica gel (Qingdao Ocean Chemical Special Silica Gel Factory, pore size 8.0-10.0nm, particle size 0.9-1.6mm), water in a mass ratio of 2:2:2: 1:2 mixed evenly, made into a strip of about 1cm, and dried in an oven at 120°C for 2 hours to obtain a composite humidity-controlling material.

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Abstract

The invention relates to a sodium carboxymethyl cellulose / chitosan-base composite moisture control material which comprises 2-3 parts of chitosan, 2-3 parts of sodium carboxymethyl cellulose, 2-3 parts of inorganic salt and 1-2 parts of silica gel. The preparation method comprises the following steps: sequentially and uniformly mixing the raw materials and water in a mass ratio of (2-3):(2-3):(2-3):(1-2):2, and drying at 120-140 for 2-3 hours to obtain the composite material. The composite moisture control material provided by the invention is compounded from the chitosan used as a matrix and the sodium carboxymethyl cellulose, has the advantages of favorable moisture absorption and desorption properties, high use safety, high economy, environmental protection and the like, and widens the application fields of the sodium carboxymethyl cellulose and chitosan.

Description

technical field [0001] The invention belongs to the field of humidity-adjusting materials and their preparation, and in particular relates to a sodium carboxymethylcellulose / chitin-based composite humidity-adjusting material and its preparation and application. Background technique [0002] Proper preservation of cultural relics has very strict requirements on environmental humidity, and cultural relics of different materials require different humidity ranges to be controlled. So far, the humidity control and adjustment methods for the preservation of cultural relics are divided into "active" and "passive". "Active" mainly uses the existing air-conditioning technology for humidity control and adjustment; "passive" uses the moisture absorption and desorption characteristics of renewable materials for humidity control and adjustment (an ecological humidity control and adjustment method). Obviously, the so-called "passive" is more environmentally friendly and energy-saving tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/08C08L1/28C08L83/04C08K3/16C09K3/00
Inventor 张文清夏玮徐峰张玉龙孙黄辉滕波朱玉涵
Owner EAST CHINA UNIV OF SCI & TECH