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Method for preparing nano titanium dioxide modified polyurethane material and products thereof

A nano-titanium dioxide, polyurethane material technology, applied in the field of material science, can solve the problems of inability to inhibit the self-aggregation of nanoparticles, difficult to disperse and uniform dispersion of nano-powders, difficult to ensure the effectiveness of nano-powders, etc., and achieve strong self-cleaning performance. , The effect of high compression recovery rate and high elongation at break

Inactive Publication Date: 2008-03-26
宁波荣山新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this nano-powder mechanical dispersion preparation method has essential problems in the process of preparing nano-polyurethane materials: first, it is difficult to disperse the nano-powder uniformly and ensure the dispersion effect; more importantly, this preparation method cannot inhibit the dispersed self-aggregation of nanoparticles, and to control the agglomeration mode and state of these particles, it is difficult to ensure the effectiveness of nano-powder modification

Method used

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  • Method for preparing nano titanium dioxide modified polyurethane material and products thereof
  • Method for preparing nano titanium dioxide modified polyurethane material and products thereof
  • Method for preparing nano titanium dioxide modified polyurethane material and products thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Preparation of nano-titanium dioxide precursor solution: adding titanium tetrachloride solution to benzoic acid solution, stirring evenly to obtain nano-titanium dioxide precursor solution; wherein the volume ratio of titanium tetrachloride solution and benzoic acid solution is 1:5;

[0026] 2. Preparation of component B of the polyurethane material: uniformly mix the conventional components for preparing the polyurethane material, add 1% by weight nano-titanium dioxide precursor solution to the above components, and react under the condition of stirring and mixing, and the product is obtained after the reaction Polyurethane material component B; wherein the reaction temperature is 60°C, and the stirring and mixing time is 20 hours;

[0027] 3. Preparation of nano-titanium dioxide-modified polyurethane material: After uniformly mixing the above-mentioned polyurethane material component B and polyurethane material component A, at a temperature of 20°C, cross-linking an...

Embodiment 2

[0029] 1. Preparation of nano-titanium dioxide precursor solution: adding titanium tetrachloride solution to benzoic acid solution, stirring evenly to obtain nano-titanium dioxide precursor solution; wherein the volume ratio of titanium tetrachloride solution and benzoic acid solution is 1:10;

[0030] 2. Preparation of component B of polyurethane material: uniformly mix the conventional components for preparing polyurethane material, add 10% by weight nano-titanium dioxide precursor solution to the above components, and react under the condition of stirring and mixing. After the reaction, it is obtained Polyurethane material component B; wherein the reaction temperature is 90°C, and the stirring and mixing time is 15 hours;

[0031] 3. Preparation of nano-titanium dioxide-modified polyurethane material: After uniformly mixing the above-mentioned polyurethane material component B and polyurethane material component A, at a temperature of 50°C, cross-linking and curing within 4 ...

Embodiment 3

[0033] 1. Preparation of nano-titanium dioxide precursor solution: adding titanium tetrachloride solution to benzoic acid solution, stirring evenly to obtain nano-titanium dioxide precursor solution; wherein the volume ratio of titanium tetrachloride solution and benzoic acid solution is 1:20;

[0034] 2. Preparation of component B of the polyurethane material: uniformly mix the conventional components for preparing the polyurethane material, add 15% by weight nano-titanium dioxide precursor solution to the above components, and react under the condition of stirring and mixing, and the product is obtained after the reaction Component B of polyurethane material; the reaction temperature is 100°C, and the mixing time is 3 hours;

[0035]3. Preparation of nano-titanium dioxide-modified polyurethane material: After uniformly mixing the above-mentioned polyurethane material component B and polyurethane material component A, at a temperature of 80°C, cross-linking and curing within 1...

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Abstract

The present invention discloses one kind of high performance nanometer titania modified polyurethane material and its preparation process. By means of wet chemical technology of preparing nanometer titania powder, the precursor liquid of nanometer titania powder is added into the polyurethane material preparing process, so that the nanometer powder is attached to the surface of other micron level pigment and stuffing powder inside the polyurethane material. The preparation process includes two steps, including preparing the precursor liquid of nanometer titania powder and modifying polyurethane material with the nanometer titania powder. The modified polyurethane material has obvious nanometer modifying effect.

Description

technical field [0001] The present invention relates to a kind of preparation method of inorganic nano particle modified polyurethane material, more specifically, the present invention relates to a kind of preparation method of nano titanium dioxide modified polyurethane material, meanwhile, the present invention also relates to the product prepared by this method; field of materials science. Background technique [0002] Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic", and is widely used in many fields of the national economy because of its excellent performance. Product applications involve light industry, chemical industry, electronics, textiles, medical treatment, construction, building materials, automobiles, national defense, aerospace, aviation and other fields. [0003] In the polyurethane industry, nanopowder has become a very important additive in polyurethane formulations due to its unique mechanism of action and multi-f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K3/22C08K9/04C08G18/76C08G18/08
Inventor 王智宇钱国栋樊先平阮华王小山
Owner 宁波荣山新型材料有限公司
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