Application of function polyol to preparation of multifunctional polyurethane

A polyol, polyurethane technology, applied in and a functional polyol in the field

Active Publication Date: 2016-07-27
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of quaternary ammonium cations and Salen or Salophen functional groups into the ...

Method used

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  • Application of function polyol to preparation of multifunctional polyurethane
  • Application of function polyol to preparation of multifunctional polyurethane
  • Application of function polyol to preparation of multifunctional polyurethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weighing formula (a 1 38 grams of polyols containing quaternary ammonium cations and Salophen functional groups of the structure shown in ), 62 grams of polyether triols with a hydroxyl value of 56 mgKOH / g and an average molecular weight of 3000 to 4000 and 1,4-dioxane 12 gram and mix evenly, then add 0.5 grams of dibutyltin dilaurate, 0.5 grams of triethylenediamine, 25 grams of pentane and 4.2 grams of deionized water, and stir well; finally add 1.3 grams of AK6618 silicone foam stabilizer and 63 grams of diphenylmethane diisocyanate, stirred rapidly and mixed evenly, foamed at room temperature in a foaming box, and aged for 2 hours to obtain an orange multifunctional polyurethane foam material containing quaternary ammonium cations and Salophen functional groups.

[0023] where formula (a 1 ) the structural formula of the polyhydric alcohol containing quaternary ammonium cation and Salophen functional group:

[0024]

[0025] Performance test: The soft foam dens...

Embodiment 2

[0030] According to the method and operation steps of embodiment 1, the formula (a in embodiment step one) 1 The polyalcohol containing quaternary ammonium cation and Salen functional group of the structure shown in ) is replaced by formula (a 2 ) of the structure shown in the polyhydric alcohol containing quaternary ammonium cation and Salen functional group, prepared to contain quaternary ammonium cation and Salen functional group functional polyurethane soft foam material, its density is 0.90g / cm after measuring 3 , Absorption rate of normal saline is 126.

[0031] where formula (a 2 ) contains the structural formula of quaternary ammonium cation and Salen functional group polyol:

[0032]

Embodiment 3

[0034] Weighing formula (a 1 ) 43 grams of polyols containing quaternary ammonium cations and Salophen functional groups, 57 grams of polyether triols with a hydroxyl value of 56 mgKOH / g and an average molecular weight of 3000 to 4000, 1,4-dioxane 50 gram, 50 grams of chlorobenzene, 0.5 grams of dibutyltin dilaurate, 0.5 grams of triethylenediamine and 0.8 grams of deionized water. After fully stirring, add 56 grams of toluene diisocyanate, stir quickly and mix evenly, and mature at 100 ° C After 2 hours, after washing with ethanol and drying, a light yellow multifunctional polyurethane porous resin material containing quaternary ammonium cations and Salophen functional groups was obtained.

[0035] The performance test is based on the method for measuring the exchange capacity of cation exchange resins in GB / T8144-2008. Cu 2+ The exchange capacity is 0.2883mmol / g, and it adsorbs Cu 2+ Then it turns light green.

[0036] where formula (a 1 ) the structural formula of the p...

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Abstract

The invention provides application of function polyol to preparation of multifunctional polyurethane. Advantages of the research achievement of the research group, namely the industrial scale of 5-chlorine methyl salicylic aldehyde are utilized, the 5-chlorine methyl salicylic aldehyde serves as the raw material and is subjected to a chemical reaction with quaternary ammonium salt of hydroxyl tertiary amine and then subjected to a condensation reaction with bis-primary amine, and the polyol with the molecular structure containing quaternary ammonium positive ions and Salen or Salophen functional groups is obtained and applied to preparation of the multifunctional polyurethane. The function polyol enables the multifunctional polyurethane to have high hydrophilia and water absorption performance, an antibacteria and sterilization function, a rapid cation and anion exchange function, a rapid heavy metal ion absorption function with the saturated absorption time within the level of several minutes and a remarkable color change property generated when the multifunctional polyurethane meets certain heavy metal ions. The multifunctional polyurethane can be used as polymer electrolyte, an ionic conductivity polyurethane membrane, cation and anion exchange resin, an online solid phase extraction material of heavy metal ions, a solid-loaded precious metal catalytic material, a multifunctional polyurethane based gas purification material and a disposable hygiene product.

Description

technical field [0001] The present invention relates to the application of a kind of functional polyol in preparing multifunctional polyurethane, particularly relate to the application of functional polyol containing quaternary ammonium cation and Salen or Salophen ligand in molecular structure in preparing multifunctional polyurethane, described multifunctional polyurethane It can be used as disposable hygiene products, polymer electrolytes, ion-conducting membrane materials, anion-cation exchange resins, anion-cation double-extracted polyurethanes, solid-supported metal catalyst materials, etc., and belongs to the field of functional polymer materials. technical background [0002] Polyurethanes (PUs) is a general term for a class of macromolecular polymers containing urethane (-NHCOO-) repeating units in the main chain, usually produced by the polyaddition reaction of polyols and polyisocyanates, and is a typical intercalated polymer. Segment copolymers; Compared with oth...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/48C08G18/38C08G101/00
CPCC08G18/3819C08G18/4825C08G18/6696C08G2101/00
Inventor 张田林李京昊张可人岳夏丹
Owner HUAIHAI INST OF TECH
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