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Method for producing wood pulp sponge
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Title:
Method for producing wood pulp sponge
Author:
DONG CHENGYONG
Subjects:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
;
CHEMISTRY
;
COMPOSITIONS BASED THEREON
;
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
;
DERIVATIVES THEREOF
;
GENERAL PROCESSES OF COMPOUNDING
;
METALLURGY
;
ORGANIC MACROMOLECULAR COMPOUNDS
;
POLYSACCHARIDES
;
THEIR PREPARATION OR CHEMICAL WORKING-UP
;
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
;
WORKING-UP
Description:
The invention discloses a method for producing wood pulp sponge. The method is as follows: using wood pulp as the main raw material, soaking, squeezing, yellowing, gluing, mixing, foam forming and washing with water to obtain the biodegradable wood cellulose sponge product, wherein (a) soaking process: adding sodium hydroxide and wood pulp into a dip vat in a mixing manner to prepare wood pulp; (b) squeezing process: placing the soaked wood pulp into a presser to obtain compressed alkali cellulose blocks; (c) yellowing process: smashing the alkali cellulose blocks after standing into particles or small lumps of alkali cellulose using a mill, and introducing an excess ratio of carbon disulfide gas for yellowing reaction; (d) gluing process: putting xanthate and additional wood pulp, bamboo pulp and water into a kneader for mixing to prepare a gluing material; (e) mixing process: mixing the gluing material with sodium sulfate crystals and toner ribbon to prepare a heat foaming sponge mixture; (f) foam forming process: preparing sponge blocks using the sponge mixture.
Creation Date:
2015
Language:
English
Source:
esp@cenet
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