Antibacterial enhanced low-temperature-resistant slow-rebound polyurethane sponge and preparation method thereof

A technology of polyurethane sponge and slow rebound polyether, which is applied in the field of organic polymer synthesis, can solve the problems of high toxicity, infection of human body, and pollution of products, etc., and achieve the effect of enhanced low temperature resistance, enhanced antibacterial effect, and not easy to damage and deform

Active Publication Date: 2021-11-09
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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  • Antibacterial enhanced low-temperature-resistant slow-rebound polyurethane sponge and preparation method thereof
  • Antibacterial enhanced low-temperature-resistant slow-rebound polyurethane sponge and preparation method thereof
  • Antibacterial enhanced 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 85 wt% phosphoric acid aqueous solution was added to a 100 mL round bottom flask in an ice-water bath, and then 45 mL of 95 wt% concentrated sulfuric acid was poured into it. After magnetic stirring at 4 °C for 10 min, 1 g of flake graphite (per 3 Add 0.1 g within 30 minutes), and continue to stir for 10 minutes after the addition. Then slowly add 7 g of potassium permanganate (1 g every 10 min, complete within 70 min), continue to react for 20 min after the addition is complete, move the system to a water bath at 50°C, stir magnetically for 10 h, and wash Freeze-dried to get GO;

[0049] Preparation of SH-GO: 0.2 g GO was added to a 50 mL round bottom flask filled with 20 mL of absolute ethanol, and ultrasonicated at 100 W for 1 h in an ultrasonic cleaner. Then, 2 mL of (3-mercaptopropyl)trimethoxysilane (KH-590) was added to the GO dispersion, and stirred for 24 h at room temperature unde...

Embodiment 2

[0061] (1) Antibacterial enhancer Alc-S-GO + The preparation: with embodiment 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 in parts by weight: DALTOPED ® AQUAPUR 40 parts, PPG3000 40 parts, POP-2045 20 parts, Alc-S-GO + 10 parts, KH-151 grafted polyether modified silicone oil 5 parts, A33 1.2 parts, T9 0.4 parts, L580 1 part, deionized water 1.3 parts, MDI 62 parts;

[0065] will DALTOPED ® Add AQUAPUR, PPG3000, and POP-2045 into PP plastic cups in proportion, and then add Alc-S-GO 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 rotation speed of 1200 r / min, and recorded as component A;

[0066] Add 62 parts of MDI into ...

Embodiment 3

[0069] (1) Antibacterial enhancer Alc-S-GO + The preparation: with embodiment 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 in parts 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] will DALTOPED ®Add AQUAPUR, PPG3000, and POP-2045 into PP plastic cups in proportion, and then add Alc-S-GO 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 rotation speed of 1200 r / min, and recorded as component A;

[0074] Add 62 parts of MDI into a...

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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. The preparation method comprises the following steps: firstly, treating by using KH-590 to obtain thiolated graphene oxide, synthesizing cationic graphene oxide loaded allicin Alc-S-GO < + > by using a click chemistry principle of sulfydryl and allicin, and taking the cationic graphene oxide loaded allicin Alc-S-GO < + > as an antibacterial enhancer, preparing KH-151 grafted polyether modified silicone oil to serve as a low-temperature-resistant agent to improve the compatibility and low-temperature resistance of a system, and finally adding Alc-S-GO < + > and the KH-151 grafted polyether modified silicone oil into a specific formula to prepare the antibacterial enhanced low-temperature-resistant slow-rebound polyurethane sponge, so that the strength, the low-temperature resistance, the antibacterial property and the like of the polyurethane sponge are greatly enhanced; and the method 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 sponge is a kind of soft foam with viscoelasticity. It is also called memory foam because of its shape memory function. It is a special material in foam plastics and has the characteristics of "handprint", that is, when the foam is deformed by an external force, its strain lags behind the change of stress, so when an external force is applied to its foam, it does not immediately recover, but It slowly returns to its original shape after 3 to 15 seconds, so this special foam is called slow rebound foam, also known as memory foam. The birth of slow rebound polyurethane sponge can be traced back to a study by NASA in...

Claims

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Application Information

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Patent Type & Authority Applications(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
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