Preparation method of antibacterial and mildew-proof TDI (toluene diisocyanate) memory polyurethane foam

A polyurethane foam, antibacterial and mildew-proof technology, which is applied in the field of polyurethane foam preparation, can solve the problems such as the anti-mildew properties of 8-hydroxyquinoline copper TDI memory polyurethane foam materials, which are not seen, and achieve easy operation, good compatibility and dispersion. The effect of the properties and the simple preparation method

Active Publication Date: 2012-09-19
FUJIAN YUETE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, some memory slow rebound polyurethane foam materials have appeared on the market, but there is no report on the application of immobilized silver mica antibacterial powder in the production of TDI memory polyurethane foam materials t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The technical scheme of the present invention is: a preparation method of antibacterial and antifungal TDI memory polyurethane foam, which comprises the following steps:

[0025] 1) After immersing 250-350 mesh muscovite powder in 30% hydrogen peroxide at 80°C for 60 minutes, filter, wash and dry in sequence to obtain expanded muscovite powder;

[0026] 2) Add the expanded muscovite powder obtained in step 1 to the trisodium phosphate solution with a concentration of 0.25 mol / L according to the weight ratio of l: 1 to 3, stir and dissolve at 65 to 70°C for 4 to 6 hours, then Filter, wash the solid product with water until there is no PO in the washing liquid 4 3+ Dry it for later use;

[0027] 3) Add the solid product obtained in step 2 to the AgNO with a concentration of 0.05 mol / L according to the weight ratio of 1:10 3 In the solution, stir and react for 4 hours at a temperature of 55~60℃ and a PH value of 6~8. Mica powder and AgNO 3 The solution undergoes ion exchange a...

Example Embodiment

[0035] Example 1

[0036] A preparation method of antibacterial and antifungal TDI memory polyurethane foam includes the following steps:

[0037] 1) After immersing 250 mesh muscovite powder in 30% hydrogen peroxide at 80°C for 60 minutes, filter, wash and dry in sequence to obtain expanded muscovite powder;

[0038] 2) Add 500g of the expanded muscovite powder obtained in step 1 to 500g of trisodium phosphate solution with a concentration of 0.25 mol / L, stir and dissolve at 65~70℃ for 4 hours, then filter, and wash the solid product with water Until no PO in the lotion 4 3+ Dry it for later use;

[0039] 3) Add 504g of the solid product dried in step 2 to 5040g AgNO with a concentration of 0.05 mol / L 3 In the solution, stir and react for 4 hours at a temperature of 55~60℃ and a PH value of 6. The mica powder and AgNO 3 The solution undergoes ion exchange and adsorption, and then centrifuges to obtain a solid product. The solid product is washed repeatedly with distilled water unt...

Example Embodiment

[0047] Example 2

[0048] A preparation method of antibacterial and antifungal TDI memory polyurethane foam includes the following steps:

[0049] 1) After immersing 350 mesh muscovite powder in 30% hydrogen peroxide at 80°C for 60 minutes, filter, wash, and dry sequentially to obtain expanded muscovite powder;

[0050] 2) Add 500g of the expanded muscovite powder obtained in step 1 to 1500g of trisodium phosphate solution with a concentration of 0.25 mol / L, stir and dissolve at 65~70℃ for 6 hours, then filter, and wash the solid product with water until it is washed No PO in liquid 4 3+ Dry it for later use;

[0051] 3) Add 508g of solid product from step 2 to 5080g AgNO with a concentration of 0.05 mol / L 3 In the solution, stir and react for 4 hours at a temperature of 55~60℃ and a pH of 8. The mica powder and AgNO 3 The solution undergoes ion exchange and adsorption, and then centrifuges to obtain a solid product. The solid product is washed repeatedly with distilled water until...

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PUM

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Abstract

The invention discloses a preparation method of antibacterial and mildew-proof TDI (toluene diisocyanate) memory polyurethane foam. The preparation method comprises the following steps of: 1) impregnating white mica powders in hydrogen peroxide to obtain expansion white mica powders after treatment; 2) adding the expansion white mica powders from the step 1 to trisodium phosphate solution to obtain a solid product after treatment; 3) adding the solid product from the step 2 to AgNO3 solution to obtain a solid-supported silver mica antibacterial agent after stirring and post-treatment; 4) adding the product from the previous step to the mixed solution of a diluting agent and a coupling agent for mixing, and then stirring to obtain a plastic antibacterial agent; and 5) adding the plastic antibacterial agent and a mildew-proof agent to a reaction kettle of butter PPG (Polypropylene Glycol) to realize dissolution by stirring, then adding a variety of accessories and TDI, stirring at high speed and then pouring the mixture into a reaction tank, and finally, naturally aging to obtain the product. According to the invention, the solid-supported silver mica antibacterial agent and the 8-hydroxyquinolinate mildew-proof agent are employed to result in antibacterial property and mildew-proof effect in the prepared product.

Description

technical field [0001] The invention relates to a preparation method of polyurethane foam, in particular to a preparation method of antibacterial and mildew-proof TDI memory polyurethane foam. Background technique [0002] Since the 20th century, polyurethane foam has been greatly developed. In the 1940s, the German Bayer laboratory used diisocyanate and polyols as raw materials to prepare polyurethane samples such as rigid foam plastics. The United States has carried out research on rigid polyurethane foam since 1946, and the products are used in aircraft sandwich panel parts. In 1952, Bayer Company reported the results of the pilot test of polyester-type flexible polyurethane foam; from 1952 to 1954, it developed the technology of continuous production of polyester-type flexible polyurethane foam and developed corresponding production equipment; In 1961, polyisocyanate PAPI with low vapor pressure was used to prepare rigid polyurethane foam, which improved the performanc...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/48C08K13/06C08K9/12C08K9/06C08K3/08C08K5/3437C08G101/00
Inventor 许明洪
Owner FUJIAN YUETE NEW MATERIAL TECH
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