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Plant polysaccharide sponge body and its preparation method

A technology of plant polysaccharides and sponges, which is applied in the field of preparation of plant polysaccharides and sponges, can solve problems such as inability to realize industrial production, fail to meet the use requirements, and complex processes, and achieve light weight, strong water or oil absorption, and low production costs. low effect

Inactive Publication Date: 2005-04-20
姜发堂
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AI Technical Summary

Problems solved by technology

Although cotton fiber sponges that have not yet been industrially produced can be degraded, their high cost, complex process, internal structure, water or oil absorption, density and other key indicators have not met the requirements for use, and industrial production cannot be realized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] 1. Mix 60 parts of coarsely broken corn kernels, 2 parts each of modifier glyoxal, phosphoryl chloride, benzyl chloride, castor oil and toluene diisocyanate, and 10 parts of water (weight ratio is 60:10:10). , Sent to a single-screw extruder, the screw D / L is 25, the three-stage temperature is 95℃, 130℃, 160℃, and the rotation speed is 120RPM. After extrusion, crush to 60 meshes for use.

[0017] 2. The various raw materials are in weight percentage: bamboo pulp fiber 10, modified corn starch (the product of step 1) 70, plasticizer calcium stearate (zinc) 1, softener (methyl silicone oil) 2, hair Foaming agent (azodicarbonamide) 7, preservative (potassium behenate) 0.3, water repellent (wax emulsion) 2, filler (calcium carbonate) 7.7, mix well in a mixer.

[0018] 3. Feed the uniformly mixed materials into the twin-screw extruder. The process parameters of the twin-screw extruder are: the screw D / L is 20, the three-stage temperature is 140°C, 170°C, 210°C, and the speed It ...

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Abstract

The invention discloses a plant polysaccharide sponge and a preparation method thereof. Using plant polysaccharides as raw materials, adding fillers, plasticizers, softeners, foaming agents, waterproofing agents and preservatives, after being melted and plasticized by the extruder at high temperature, the honeycomb sponge structure is obtained, and sent to the shaping mechanism for stable shaping , Extrude the sponge product through the mold. The products can be widely used in sanitary materials, medical dressings, agriculture, forestry and gardening, daily chemicals, construction, sofas and car cushions.

Description

Technical field [0001] The invention relates to a high-temperature extrusion and puffing plant polysaccharide sponge, and also relates to a preparation method of the plant polysaccharide sponge. Background technique [0002] With the further development of industrial civilization, people are becoming more and more environmentally aware of industrial products, and environmental protection requirements are getting higher and higher. At present, the sponge products on the market are mainly polyurethane sponge products. Whether it is the large-scale use of organic solvents in the production process or the solvent residues in the products, these products have a great negative impact on the living environment and living environment of human beings, and even endanger the health of users. Polyurethane sponge products are non-biodegradable and non-recyclable. The direct consequence is that the amount of solid waste and solid waste is increasing day by day, which s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B31/00C08J9/00
Inventor 姜发堂李冬生袁世矩
Owner 姜发堂
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