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Anti-microbial deodorizing polyurethane foam and processing method thereof

A polyurethane foam and processing method technology, applied in the field of chemical materials, can solve the problems of less application, late start, and human safety issues

Active Publication Date: 2017-07-07
RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Antibacterial deodorants currently on the market are divided into organic, inorganic and natural. Organic antibacterial and deodorant effects are good, but there are safety issues for the human body; inorganic antibacterial deodorants use Ag, Cu, which are safe for the human body. , Zn and other metal ions have antibacterial effects to inhibit bacterial reproduction
However, natural antibacterial agents start late and are less used

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 20 parts of bamboo processing residue liquefaction products, 50 parts of petroleum-based polyether polyols, 20 parts of castor oil-based polyether polyols, 0.5 parts of catalyst pentamethyldiethylenetriamine, 9 parts of 1,4 parts of water-containing 25% -Dioxane, 0.5 part of polyphenols (i.e. bacteriostatic agent) extracted from fresh Camellia oleifera seed husk, the raw materials obtained by weighing are mixed and stirred evenly to obtain component A, then 100 parts of isocyanate are weighed, and isocyanate and A component is mixed and stirred evenly, placed in a mold, and reacted and molded at 60°C. The density of the prepared polyurethane foam is 25kg / m 3 , Compression strength 100kPa.

[0025] The results of the antibacterial test showed that no test bacteria grew in the range of 5.5 mm around the polyurethane foam for Staphylococcus aureus, and no test bacteria grew in the range of 5.3 mm around the polyurethane foam for Escherichia coli.

Embodiment 2

[0027] Weigh 30 parts of Camellia oleifera liquefaction product, 40 parts of petroleum-based polyether polyol, 20 parts of castor oil-based polyether polyol, 1 part of catalyst dimethylcyclohexylamine, 8 parts of 1,4-dioxo Six rings, 1 part of saponin (i.e. bacteriostatic agent) extracted from fresh sapindus pericarp, mix and stir the obtained raw materials to obtain component A, then weigh 100 parts of isocyanate, and mix isocyanate with component A Mix and stir evenly, place in a mold, and react and form at 50°C. The density of the prepared polyurethane foam is 28kg / m 3 , Compressive strength 120kPa.

[0028] The results of the antibacterial test showed that no test bacteria grew in the range of 5.9 mm around the polyurethane foam for Staphylococcus aureus, and no test bacteria grew in the range of 6.2 mm around the polyurethane foam for Escherichia coli.

Embodiment 3

[0030] Take by weighing 40 parts of bamboo processing residue liquefaction products, 40 parts of petroleum-based polyether polyols, 10 parts of castor oil-based polyether polyols, 1.5 parts of 2,4,6-tris(dimethylaminomethyl)phenol, 6.5 parts Water-containing 10% 1,4-dioxane, 2 parts of polyphenols (i.e., antibacterial agent) extracted from fresh camellia seed shells, the raw materials obtained by weighing were mixed and stirred evenly to obtain component A, and then weighed 100 Parts of isocyanate, mix and stir the isocyanate and component A evenly, place it in a mold, and react it at 40°C for molding. The density of the prepared polyurethane foam is 30kg / m 3 , Compression strength 140kPa.

[0031] The results of the antibacterial test showed that no test bacteria grew in the range of 9.0 mm around the polyurethane foam for Staphylococcus aureus, and no test bacteria grew in the range of 8.9 mm around the polyurethane foam for Escherichia coli.

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Abstract

The invention relates to a preparation method for anti-microbial deodorizing polyurethane foam and belongs to the field of a chemical material. The anti-microbial deodorizing polyurethane foam is prepared from the following raw materials in parts by weight: 20-40 parts of bamboo processing residue or tea-oil liquefied product, 30-50 parts of petroleum base polyether polyol, 10-20 parts of castor-oil base polyether polyol, 0.5-2.5 parts of catalyst, 4-9 parts of foaming agent, 0.5-3.5 parts of bacteriostatic agent and 100 parts of isocyanate. The catalyst is an amine catalyst. The bacteriostatic agent is polyphenol or saponin extracted and purified from fresh camellia seed shell or soapberry peel. The polyurethane foam provided by the invention can meet various requirements of anti-microbial deodorization, strength and environmental protection, can be widely applied to various fields and is especially suitable for the field of polyurethane foam requiring a certain density and strength and requiring anti-microbial deodorization, such as, buildings, flower arrangement and electric appliances.

Description

technical field [0001] The invention relates to a preparation method of an antibacterial and deodorant polyurethane foam, which belongs to the field of chemical materials. Background technique [0002] Polyurethane foam is a polymer with repeating structural units of urethane chain segment, which is made by addition polycondensation reaction of isocyanate and polyether polyol. It is a synthetic polymer material with excellent performance and has been widely used in construction. , electrical appliances, packaging, transportation, flower mud and other fields have developed rapidly in recent years, and are used in many public facilities such as parks, hotels, conference rooms, airports, and railway stations. At present, the raw materials for the production of polyether polyols are all derived from petrochemical products. The extensive use of these petrochemical resources has caused increasingly serious environmental problems, such as global warming, damage to the ozone layer, ...

Claims

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Application Information

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IPC IPC(8): C08G18/48C08G18/64C08J9/14C08K5/00C08K5/13C08K5/1545C08G101/00
CPCC08G18/14C08G18/4081C08G18/4804C08G18/64C08G2101/00C08J9/142C08K5/0058C08K5/13C08K5/1545
Inventor 张金萍杜孟浩胡立松
Owner RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY
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