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Novel antimicrobial sponge and preparation method thereof

An anti-microbial and sponge technology, applied in the field of sponge materials, can solve the problems of insufficient stability, short duration of inhibition, limiting the application of antibacterial sponges, etc., and achieve the effect of avoiding oxidative discoloration

Inactive Publication Date: 2019-02-12
广州市欧亚床垫家具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual use, organic antibacterial agents have a relatively fast sterilizing speed, but there are problems of heat resistance, insufficient stability and short duration of inhibition, and the decomposition products and volatiles of these antibacterial agents themselves may be harmful to the human body. Its application in antibacterial sponge

Method used

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  • Novel antimicrobial sponge and preparation method thereof
  • Novel antimicrobial sponge and preparation method thereof
  • Novel antimicrobial sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] As an embodiment of the preparation method of the novel antimicrobial sponge of the present invention, the preparation method of the novel antimicrobial sponge described in this embodiment comprises the following steps:

[0038] (1) Weigh each component raw material according to the above ratio

[0039] 100 parts of polypolyols, 55 parts of polyisocyanates, 1.8 parts of foam stabilizers, 1.0 parts of amine catalysts, 9 parts of blowing agents and 5 parts of antibacterial microcapsules, said polypolyols include 25 wt% polyoxypropylene polyols, The polycaprolactone polyol of 35wt% and the polytetrahydrofuran polyol of 40wt%, the average functionality of described polypolyol is 3.5; In described antimicrobial microcapsule, the weight ratio of nano-silver and tea polyphenol is 0.12:1, wax The weight ratios of chrysanthemum extract and tea polyphenols are respectively 0.1:1, 0.2:1, 0.5:1, 0.6:1, 0.8:1, 1:1; the particle diameter of the nano-silver is 10nm; The capsules use ...

Embodiment 2

[0046] The composition and preparation method of the novel antimicrobial sponge of this example are basically the same as those of this example, the difference is that in the antimicrobial microcapsules described in this example, the weight ratio of nano-silver to tea polyphenols is 0.01:1, 0.05:1 , 0.1:1, 0.12:1, 0.15:1 and 0.2:1, the weight ratio of Helichrysum extract to tea polyphenols is 0.6:1 respectively.

[0047] Antibacterial test and rebound resilience test are carried out to the sponge prepared according to the above-mentioned method, the results are as follows: figure 2 shown.

[0048] Rebound performance test method: Prepare a sponge of 20cm×20cm×10cm, place a 1kg object on it, and measure the rebound time after 5 minutes.

[0049] Depend on figure 2 The results showed that as the weight ratio of nano-silver to tea polyphenols increased, the antibacterial rate and rebound time of the sponge both showed an increasing trend.

Embodiment 3

[0051] As an embodiment of the preparation method of the novel antimicrobial sponge of the present invention, the preparation method of the novel antimicrobial sponge described in this embodiment comprises the following steps:

[0052] (1) Weigh each component raw material according to the above ratio

[0053] 100 parts of polypolyols, 62 parts of polyisocyanates, 1.5 parts of foam stabilizers, 1.2 parts of amine catalysts, 6 parts of blowing agents and 6 parts of antibacterial microcapsules, said polypolyols include 32wt% polyoxypropylene polyols, 50wt% polycaprolactone polyol and 18wt% polytetrahydrofuran polyol, the polypolyol has an average functionality of 3 to 3.5; in the antibacterial microcapsules, the weight ratio of nano-silver to tea polyphenol is 0.15:1 , the weight ratio of Helichrysum extract to tea polyphenols is 0.6:1; the particle diameter of the nano-silver is 10nm; as the core.

[0054] (2) prepare antibacterial microcapsules:

[0055] After dissolving ca...

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Abstract

The invention discloses a novel antimicrobial sponge and a preparation method thereof, and the sponge comprises the following components in parts by weight: 100 parts of polypolyol, 45 to 68 parts ofpolyisocyanate, 1.1 to 2.4 parts of a foam stabilizer, 0.8 to 1.5 parts of an amine catalyst, 5 to 13 parts of a foaming agent and 3 to 8 parts of an antibacterial microcapsule. The antibacterial microcapsule includes nano silver, helichrysum extract and tea polyphenol. According to the invention, by adding the nano silver and the helichrysum extract as antibacterial agents in the sponge materials, and combining with different antibacterial characteristics of different antibacterial agents, the materials are compounded to fully exert antimicrobial advantages thereof. At the same time, the helichrysum extract, the tea polyphenol and the nano silver are encapsulated in a microencapsulated structure, enabling the natural antibacterial agent to be slowly released by the embedding effect of themicrocapsule, thereby realizing the enduring antibacterial effect while preventing the nan silver from oxidation stain, and the addition of the antibacterial microcapsule does not affect the resilience of the sponge material.

Description

technical field [0001] The invention relates to the technical field of sponge materials, in particular to a novel antimicrobial sponge and a preparation method thereof. Background technique [0002] Sponge is a common item in people's home life. It is widely used in pillows, mattresses and other bedding. After a period of use, these beddings are often prone to mildew or bacteria and other microorganisms due to their poor air permeability and moisture dissipation. Human health poses a threat. Studies have found that each pillow material contains more than 1 million fungal spores. Pillows and mattress materials contain a large amount of Aspergillus, and Aspergillus is very likely to cause diseases, leading to cross-infection of colds, Aspergillus pneumonia, exacerbation of asthma, etc. Therefore, in order to improve people's sleep environment and human health, it is necessary to develop sponge products with good antibacterial and antimicrobial properties and apply them to be...

Claims

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Application Information

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IPC IPC(8): C08J9/14C08J9/08C08G18/48C08G18/42C08K9/10C08K3/08C08K5/00C08K3/015
CPCC08G18/4018C08G18/4277C08G18/4804C08J9/147C08J2375/04C08J2375/08C08K3/08C08K5/0058C08K9/10C08K2003/0806C08K2201/003C08K2201/011C08K3/015C08G2110/0083
Inventor 邓志
Owner 广州市欧亚床垫家具有限公司
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