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Inorganic nano particle-high molecular composite material and its preparing method and use

A technology of inorganic nano-particles and composite materials, which is applied in paper coatings, textiles, papermaking, fiber raw material processing, etc., can solve the problems of blank application in papermaking and coating industries, and achieve the effect of improving paper performance and increasing heat insulation

Inactive Publication Date: 2005-06-22
兰化胶乳研制中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China, CaCO has been gradually developed in recent years 3 , ZnO, Fe 2 o 3 , SiO 2 and TiO 2 Nanomaterials such as nanomaterials, and have begun to be used in rubber, plastics and medicine fields, but the application in the papermaking and coating industries is still blank.

Method used

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  • Inorganic nano particle-high molecular composite material and its preparing method and use
  • Inorganic nano particle-high molecular composite material and its preparing method and use
  • Inorganic nano particle-high molecular composite material and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a. Preparation method

[0022] Disperse the slurry of 1g nano-calcium carbonate by ultrasonic wave for 5 minutes, then heat up to the melting point of surface modifier stearic acid above 20°C, add 0.04g stearic acid, react for 2 hours, cool, lower the temperature, and dissolve 98.96g butylbenzene The latex is directly added thereinto, stirred at a high speed for 20 minutes, and the stirring speed is 2000 rpm, and the nanoparticle-polymer composite material is obtained.

[0023] b. Coating properties

[0024] Among them, 1-5-1 is an unmodified sample, 1-5-2 is a modified sample, and it is used as a primer for coated paper

[0025] ① Coating property test

[0026]

[0027] ②Physical performance test of small blade coater:

[0028]

[0029] 1. From the test results of the paint, the water retention value of the paint using modified latex is nearly 5 seconds higher than that of the paint without modified latex. Other properties of the paint are similar.

[0030] ...

Embodiment 2

[0038] a. Preparation method

[0039] Disperse the slurry of 5g nano-calcium carbonate by ultrasonic wave for 15 minutes, then raise the temperature to above the melting point of the surface modifier lauric acid 20°C, add 0.05g lauric acid, react for 3 hours, cool, lower the temperature, and add 94.95 parts of latex directly into it , stirring at a high speed for 15 minutes at a stirring speed of 3000 rpm to obtain a nanoparticle-polymer composite material.

[0040] b. Coating properties

[0041] Among them, 1# is an unmodified sample, 2# is a modified sample, and it is used for white cardboard surface coating

[0042] Item and number

1#

2#

Solid content: %

61.9

61.8

PH value: 25°C

8.21

8.48

Viscosity: 25℃, 60rpm

2500

2700

[0043] ② Paper performance test:

[0044] Item and number

1#

2#

BaiDu

85.5

87.3

Ink absorbency (...

Embodiment 3

[0055] a. Preparation method

[0056] Disperse 6g of nano-calcium carbonate slurry by ultrasonic waves for 15 minutes, then heat up to the melting point of surface modifier lauric acid above 20°C, add 0.06g of lauric acid, react for 3 hours, cool, lower the temperature, and add 93.94 parts of latex directly to it , stirring at a high speed for 15 minutes at a stirring speed of 3000 rpm to obtain a nanoparticle-polymer composite material. Experiments have found that when the addition of nanomaterials is 6% (percentage by weight), precipitation occurs in the latex, so the addition of nanomaterials should not be greater than 5%.

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Abstract

The invention relates to an inorganic nano particle-polymer composite material, its preparation method and its application as paper coating anti-aging. It is made by mixing nanomaterials, surface modifiers and latex, wherein the weight percentage of nanomaterials is 1.00%-5.00%, the weight percentage of surface modifiers is 0.04%-1.00%, and the weight percentage of latex is The percentage is 94.00%-98.96%. The preparation method is to firstly disperse the slurry of nanomaterials by ultrasonic waves, then raise the temperature to 10-30°C above the melting point of the surface modifier, add the surface modifier to modify, react for 1-3 hours, cool down, and stop the reaction by cooling down. Then it is directly blended with latex at normal temperature, and it is uniformly mixed by high-speed dispersion. The invention can form a shielding effect on the paint, achieve the effect of anti-ultraviolet aging and heat aging, and increase the heat insulation of the paint at the same time. Applied to paper coating, the performance of coated paper can be greatly improved.

Description

(1) Technical field: [0001] The invention relates to an inorganic nano particle-macromolecule composite material, a preparation method thereof and its application as paper coating anti-aging. (two) background technology: [0002] Nanomaterials are new materials just developed in the 1980s. Since their birth, they have been praised by the American Society for Materials as "the most promising materials in the 21st century" because of their broad commercial prospects. Due to its special small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect, nanomaterials have attracted extensive attention in many scientific fields and become a hot spot in material science research. At the same time, it also adds new content to the research of conventional composite materials. [0003] In recent years, in order to improve the comprehensive properties of materials, the research on inorganic nanoparticles-polymer composites has attracted people's attentio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/00C08L25/12C08L33/08D21H19/00
Inventor 赵小龙马毅璇严增涛胡福增李成贵于晶王津生刘栓祥
Owner 兰化胶乳研制中心