Preparation method of antibacterial mildew-resistant high-buffer slow-recovery polyurethane soft foam

An antibacterial and mildew-proof, flexible foam technology is applied in the field of preparation of antibacterial and mildew-proof high-buffering and slow-resilience polyurethane flexible foam, which can solve the problem of poor cushioning performance of slow-resilience polyurethane flexible foam, inability to dissipate energy and reduce energy consumption. Diffusion shock, inability to meet the requirements of cushioning performance, etc., to achieve the effect of low cost, reduced non-penetrating damage, and light weight

Inactive Publication Date: 2018-04-24
FUJIAN YUETE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual application of insoles, sports equipment, toys, and aerospace, aviation, automobile, and high-speed rail decorative materials, due to the poor cushioning performance of slow-rebound polyurethane soft foam, it is impossible to achieve the effect of dissipating energy and diffusing impact, whi

Method used

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Examples

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Effect test

preparation example Construction

[0024] A preparation method of an antibacterial and antifungal type high-buffering slow-rebound polyurethane soft foam, which comprises the steps of:

[0025] (1) Immerse the muscovite powder with a particle size of 250-350 mesh in 30% hydrogen peroxide at 80°C for 60 minutes, then take it out, filter, wash, and dry in sequence to obtain the expanded muscovite powder;

[0026] (2) Add the expanded muscovite powder obtained in step (1) to the trisodium phosphate solution with a concentration of 0.25mol / L at a weight ratio of 1:1~3, and stir at 65~70°C Dissolve for 4-6 hours, then filter the mixed solution, and wash the obtained solid product with water until there is no PO4 in the washing liquid 3 - post-drying;

[0027] (3) Add the solid product dried in step (2) to AgNO with a concentration of 0.05mol / L at a weight ratio of 1:10 3 In the solution, stir and react for 4 h under the conditions of temperature 55-60 °C and pH value 6-8, so that mica powder and AgNO 3 The solut...

Embodiment 1

[0041] A preparation method for antibacterial and mildew-proof type high-buffering slow-rebound polyurethane soft foam, which comprises the following steps:

[0042] (1) Immerse 250 mesh muscovite powder in 30% hydrogen peroxide at 80°C for 60 min, then take it out and sequentially filter, wash, and dry to obtain expanded muscovite powder;

[0043] (2) Add 400g of the expanded muscovite powder obtained in step (1) to 400g of trisodium phosphate solution with a concentration of 0.25mol / L, stir and dissolve at 65-70°C for 4 hours, and then filter the mixed solution. Wash the obtained solid product with water until there is no PO4 in the washing liquid 3 - post-drying;

[0044] (3) Add 403g of the solid product obtained in step 2 to 4030g of AgNO with a concentration of 0.05mol / L 3 In the solution, stir and react for 4 h under the conditions of temperature 55-60 °C and pH value 8, so that mica powder and AgNO 3 The solution undergoes ion exchange and adsorption, and then cent...

Embodiment 2

[0055] A preparation method for antibacterial and mildew-proof type high-buffering slow-rebound polyurethane soft foam, which comprises the following steps:

[0056] (1) Put 350-mesh muscovite powder in 30% hydrogen peroxide at 80°C for 60 minutes, then take it out and filter, wash, and dry in sequence to obtain expanded muscovite powder;

[0057] (2) Add 400g of the expanded muscovite powder obtained in step (1) to 800g of trisodium phosphate solution with a concentration of 0.25mol / L, stir and dissolve at 65-70°C for 6h, and then filter to obtain a solid product. The solid product is washed with water until there is no PO4 in the washing liquid 3 - After drying for use;

[0058] (3) Add 406g of the solid product obtained in step (2) to 4060g of AgNO with a concentration of 0.05mol / L 3 In the solution, stir and react for 4 h under the conditions of temperature 55-60 °C and pH value 6, so that mica powder and AgNO 3 The solution undergoes ion exchange and adsorption, and t...

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Abstract

The invention discloses a preparation method of antibacterial mildew-resistant high-buffer slow-recovery polyurethane soft foam. The antibacterial mildew-resistant high-buffer slow-recovery polyurethane soft foam is prepared by means of a polyurethane soft foam formulation modifying technique; silver-supported mica antibacterial powder is used herein and has good dispersibility and compatibility with raw and auxiliary materials for the production of polyurethane and other plastics; the antibacterial property of the silver-supported mica antibacterial powder can be given to full play so that the prepared foam has antibacterial performance; in addition, copper 8-hydroxyquinoline is used as a mildew preventive so that the prepared antibacterial mildew-resistant MDI memory polyurethane foam can prevent mildew; MDI (diphenylmethane diisocyanate) is used as a raw material to replace existing TDI (toluene diisocynate), and the prepared foam has low cost and is more environmentally friendly.

Description

technical field [0001] The invention designs the field of preparation of high-buffering and slow-rebound polyurethane flexible foam, especially the preparation method of antibacterial and mildew-proof high-buffering and slow-rebound polyurethane soft foam. Background technique [0002] Slow rebound polyurethane soft foam refers to the foam that is deformed by external force, the foam does not immediately restore its original shape like the previous sponge, but slowly restores its original shape without residual deformation; it is also called "memory foam" . Because of its excellent "memory" effect, cushioning, sound insulation, sealing, and small compression residual deformation and other advantages and properties; it has become the largest type of polyurethane product in polyurethane products. The main uses of polyurethane soft foam include the following aspects: First, cushion materials, such as seats, sofas, mattresses, etc. Polyurethane soft foam is a very ideal cushion...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/48C08K9/12C08K9/02C08K3/34C08K7/26C08K3/08C08K9/06C08K5/3432C08J9/08C08G101/00
CPCC08G18/4804C08G18/7671C08K3/08C08K3/34C08K5/3432C08K7/26C08K9/02C08K9/06C08K9/12C08K2003/0806C08G2110/0008C08G2110/0083
Inventor 许明洪林顺寅方凯育邹如珍
Owner FUJIAN YUETE NEW MATERIAL TECH
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