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A kind of antibacterial reinforced low temperature resistant slow rebound polyurethane sponge and preparation method thereof

A technology of polyurethane sponge and low temperature resistance, applied in the field of organic polymer synthesis, can solve the problems of high toxicity, easy breeding of bacteria, infection of human body, etc., and achieve the effect of enhanced low temperature resistance, not easy to decompose and fail, and not easy to damage and deform

Active Publication Date: 2022-06-24
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when it is used as a seat, mattress and pillow in winter, people will not feel comfortable, or even uncomfortable hard object feeling, and because the traditional slow rebound polyurethane foam is a kind of human body In close contact with materials, body fluids or other substances of the human body in daily life contact sponges to easily breed bacteria, which in turn contaminates the product and infects the human body, and most of the isocyanate used in the preparation process is TDI (toluene diisocyanate), which is highly toxic, which greatly limit its scope of application

Method used

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  • A kind of antibacterial reinforced low temperature resistant slow rebound polyurethane sponge and preparation method thereof
  • A kind of antibacterial reinforced low temperature resistant slow rebound polyurethane sponge and preparation method thereof
  • A kind of antibacterial reinforced low temperature resistant slow rebound polyurethane sponge and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Antibacterial enhancer Alc-S-GO + Preparation of:

[0048] First, 5 mL of 85wt% phosphoric acid aqueous solution was added to a 100 mL round-bottomed flask in an ice-water bath, then poured into 45 mL of 95wt% concentrated sulfuric acid, and after magnetic stirring for 10 min at a temperature of 4 °C, 1 g of flake graphite (every 3 Add 0.1 g within 30 minutes), and continue to stir for 10 minutes after adding. Then slowly add 7 g potassium permanganate (add 1 g every 10 min and complete the addition within 70 min), continue the reaction for 20 min after the addition, move the system to a water bath at 50 °C, stir magnetically for 10 h, wash Freeze-dried to get GO;

[0049] Preparation of SH-GO: 0.2 g of GO was added to a 50 mL round-bottomed flask containing 20 mL of absolute ethanol, and sonicated at 100 W in an ultrasonic cleaner for 1 h. Then, 2 mL of (3-mercaptopropyl)trimethoxysilane (KH-590) was added to the GO dispersion, and under a nitrogen atmosphere, t...

Embodiment 2

[0061] (1) Antibacterial enhancer Alc-S-GO + Preparation: same as Example 1,

[0062] (2) Preparation of low temperature resistant agent KH-151 grafted polyether modified silicone oil: same as Example 1,

[0063] (3) Preparation of antibacterial enhanced low temperature resistant slow rebound polyurethane sponge:

[0064] Weigh the following raw materials by weight: DALTOPED ® AQUAPUR 40 parts, PPG3000 40 parts, POP-2045 20 parts, Alc-S-GO + 10 parts, 5 parts of KH-151 grafted polyether modified silicone oil, 1.2 parts of A33, 0.4 parts of T9, 1 part of L580, 1.3 parts of deionized water, 62 parts of MDI;

[0065] DALTOPED ® AQUAPUR, PPG3000, POP-2045 are added to the PP plastic cup in proportion, and then Alc-S-GO is added in sequence according to the formula + , KH-151 grafted polyether modified silicone oil, A33, T9, L580, deionized water, stirred for 60 seconds under a mixer with a rotating speed of 1200 r / min, and recorded as component A;

[0066] Add 62 parts of M...

Embodiment 3

[0069] (1) Antibacterial enhancer Alc-S-GO + Preparation: same as Example 1,

[0070] (2) Preparation of low temperature resistant agent KH-151 grafted polyether modified silicone oil: same as Example 1,

[0071] (3) Preparation of antibacterial enhanced low temperature resistant slow rebound polyurethane sponge:

[0072] Weigh the following raw materials by weight: DALTOPED ® AQUAPUR 40 parts, PPG3000 40 parts, POP-2045 20 parts, Alc-S-GO + 5 parts, KH-151 grafted polyether modified silicone oil 10 parts, A33 1.2 parts, T9 0.4 parts, L580 1 part, deionized water 1.3 parts, MDI 62 parts;

[0073] DALTOPED ®AQUAPUR, PPG3000, POP-2045 are added to the PP plastic cup in proportion, and then Alc-S-GO is added in sequence according to the formula + , KH-151 grafted polyether modified silicone oil, A33, T9, L580, deionized water, stirred for 60 seconds under a mixer with a rotating speed of 1200 r / min, and recorded as component A;

[0074] Add 62 parts of MDI into another PP ...

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PUM

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Abstract

The invention relates to an antibacterial enhanced low-temperature resistant slow-rebound polyurethane sponge and a preparation method thereof. Firstly, KH-590 is used to process mercaptolated graphene oxide, and the click chemistry principle of mercapto and allicin is used to synthesize cationic graphene oxide. Allicin Alc‑S‑GO + Use it as an antibacterial enhancer, and then prepare KH‑151 grafted polyether modified silicone oil, use it as a low temperature resistance agent to improve the compatibility and low temperature resistance of the system, and finally add the two to a specific formula to obtain Antibacterial enhanced low temperature resistance and slow rebound polyurethane sponge greatly enhances its strength, low temperature resistance, antibacterial properties and other properties, and has huge social and economic benefits in actual production and application.

Description

technical field [0001] The invention belongs to the technical field of organic polymer synthesis, and relates to a production method of a polyurethane polymer material, in particular to an antibacterial, high-strength, low-temperature-resistant slow-rebound polyurethane sponge and a production method thereof. Background technique [0002] Slow-rebound polyurethane foam is a viscoelastic soft foam, also known as memory foam because of its shape memory function. It is a special material in foamed plastics, which has the characteristics of "handprint", that is, when the foam is deformed by external force, its strain lags behind the change of stress, so when external force is applied to its foam, it does not recover immediately, but It slowly returns to its original shape after 3 to 15 seconds, so this special foam is called slow rebound foam, also called memory foam. The birth of slow-rebound polyurethane sponge can be traced back to a 1962 NASA study: the United States cited ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/48C08G18/61C08G18/76C08K5/372C08K9/12C08G101/00
CPCC08G18/7671C08G18/4837C08G18/4009C08G18/61C08G18/4804C08K9/12C08K5/372C08G2110/0083
Inventor 郑玉婴王利
Owner FUZHOU UNIV