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Inorganic filler modified polyurethane foam material and preparation method thereof

A polyurethane foam and inorganic filler technology, applied in the field of inorganic filler modified polyurethane foam and its preparation, can solve the problems of poor adsorption performance and biocompatibility, achieve controllable expansion ratio, meet the requirements of environmental protection and sustainable development Demand, the effect of simple foaming process

Inactive Publication Date: 2018-02-23
BEIJING DRAINAGE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the defects of the prior art described above, the object of the present invention is to provide a kind of inorganic filler modified polyurethane foam material, which is used to solve the problem of poor adsorption performance and biocompatibility of polyurethane foam plastics in the prior art

Method used

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  • Inorganic filler modified polyurethane foam material and preparation method thereof
  • Inorganic filler modified polyurethane foam material and preparation method thereof
  • Inorganic filler modified polyurethane foam material and preparation method thereof

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Embodiment 1-5

[0022] In the first step, preheat polyether polyol (ALDRICH company, product number 435406) ​​and toluene diisocyanate respectively at a temperature of 35° C. for 1 h; in the second step, mix 100 parts of polyether polyol, 5 parts of deionized water, 0.5 part of triethanolamine, 0.5 part of high-efficiency silicone glycol copolymer, and graphite particles are respectively selected from 0 part (blank comparative example), 3.5 parts (embodiment 1), 10.5 parts (embodiment 2), 18 parts of (embodiment 3), 25 parts of (embodiment 4) and 30 parts of (embodiment 5), above-mentioned raw material is stirred and mixed, and stirring speed is 1000r / min, and stirring time is 1 minute; The above-mentioned mixture of the 3rd step is mixed with Stir 57 parts of toluene diisocyanate and 0.5 parts of triethanolamine at high speed, the stirring speed is 2000r / min, and the stirring time is 3 seconds; the fourth step is pouring into the mold, foaming freely, and standing still for 20-30min at a temp...

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Abstract

The invention provides an inorganic filler modified polyurethane foam material and a preparation method thereof, and belongs to the field of macromolecular foam materials. The inorganic filler modified polyurethane foam material is prepared from polyhydric alcohols, deionized water, catalysts, surface active agents, inorganic particles and isocyanate compounds. The preparation method comprises thefollowing steps that 1, polyhydric alcohols and isocyanate are preheated separately; 2, polyhydric alcohols, deionized water, catalysts, surface active agents and inorganic particles are mixed proportionally to be uniform; 3, the mixture is stirred with isocyanate compounds at high speed; 4, free foaming is performed, and the inorganic filler modified polyurethane foam material is obtained. The inorganic filler modified polyurethane foam material adopts deionized water as the foaming agent, is environmentally friendly, due to the high opening rate of polyurethane foams, a channel can be provided for sewage flowing, the adhesion property of microorganisms can be improved due to biocompatibility of filler, and the material has the advantages that the method is simple, the cost is low and the requirement for equipment is low.

Description

technical field [0001] The invention relates to the field of thermosetting polymer foam materials, in particular to an inorganic filler modified polyurethane foam material and a preparation method thereof. Background technique [0002] The sewage treatment method of immobilized growth of microorganisms needs to rely on the carrier to allow the microorganisms to multiply on it, thereby improving the organic degradation ability of microorganisms, which can not only achieve the treatment of sewage water quality, but also decompose the remaining sludge in situ, solving the problem of traditional biological treatment. The technically difficult problem of excess sludge is increasingly favored by people. Microbial carrier is the key to the sewage treatment technology of microbial immobilization and growth. Polyurethane foam has the characteristics of low density, large specific surface area, and regular three-dimensional network pore structure, so it is an ideal carrier material. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08K3/04C08J9/08C08G101/00
CPCC08G18/48C08G18/7614C08J9/08C08J2203/10C08J2205/05C08J2375/08C08J2483/04C08K3/04C08G2110/005C08G2110/0083
Inventor 陈沉张树军阜崴孟春霖高金华邢旭
Owner BEIJING DRAINAGE TECH CO LTD
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