Nano-composite material containing organic sepiolite and its preparation method

A technology of nanocomposite material and organic sepiolite, which is applied in the field of nanocomposite material containing organic sepiolite and its preparation, can solve the problems that have not been reported, and achieve the effects of simple preparation operation, improved bending strength and improved impact strength

Inactive Publication Date: 2006-06-14
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although in JP Zhao 63-251461, JP flat 2-86828, JP flat 2-208357 discloses the preparation method of the nylon 6 composite material that takes sepi

Method used

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  • Nano-composite material containing organic sepiolite and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example

[0027] Example 1: First prepare organic sepiolite

[0028] a) The coarse sepiolite ore is crushed to 100 mesh, and the coarse sand is removed by wind separation;

[0029] b) Take the above-mentioned ore powder and form a slurry with a concentration of 10%, soak it with 1mol / L hydrochloric acid solution to dissolve the carbonates mixed in the sepiolite, wash it, filter, and dry for later use to ensure that the content of the sepiolite reaches More than 90;

[0030] c) Test the cation exchange capacity of sepiolite;

[0031] d) According to the cation exchange capacity, add dodecyl trimethyl ammonium chloride in an equivalent amount, use water as the dispersant, and the organic exchanger concentration is 10% to promote the cation exchange reaction between the sepiolite particles and the dispersant;

[0032] e) Treat at 65°C for 3 hours, filter, wash, dry, and crush to 800 mesh.

[0033] The second uses the melt intercalation polymer method, and the preparation steps are as follows: ...

Example

[0038] Example 2: First prepare organic sepiolite

[0039] The first two steps are equivalent to the above preparation process. After testing the degree of sepiolite organicization, that is, after the cation exchange capacity, add the organic exchanger: octadecyl trimethyl ammonium chloride with water as the dispersant according to the equivalent amount of the cation exchange capacity. , The organic exchanger concentration is 14%, treated at 65°C for 3.5 hours, filtered, washed, dried, and crushed to 800-1250 mesh.

[0040] The second uses the melt intercalation polymer method, and the preparation steps are as follows:

[0041] Add 5 grams of organic sepiolite to 100 grams of epoxy resin TDE-85, raise the temperature to 50°C, disperse for 5-10 minutes with a mixer, and then stir in a boiling water bath for 1 hour.

[0042] Put the dispersed mixture in a vacuum drying oven at 80°C for vacuum degassing.

[0043] The organic sepiolite / epoxy resin mixture after degassing is cooled to ...

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Abstract

The present invention relates to a nano composite material containing organic sepiolite and its preparation method. It is technically characterized by that its main components are organic sepiolite, epoxy resin and solidifying agent. Its preparation method includes the following steps: making crude sepiolite undergo the process of organization treatment, adding organic exchange agent, mixing organic sepiolite and epoxy resin according to the ratio of 1-10:100, and adopting melting intercalation polymer method to prepare invented product. The described epoxy resin can adopt liquid bisphenol A, glycidyl ether type, glycidyl ester type, glycidyl amine type, alicyclic epoxide or linear type fatty epoxide, etc.

Description

technical field [0001] The invention relates to a nanocomposite material containing organic sepiolite and a preparation method thereof. Background technique: [0002] Epoxy resin is a kind of widely used polymer material, and its high-performance research includes adjusting the molecular chain structure and adding organic and inorganic fillers during the synthesis process to improve its toughness and heat resistance. Usually, a toughening agent is added to the epoxy resin, which cannot be toughened and strengthened at the same time, and the heat resistance is reduced. Nanoparticle-modified epoxy resin can be toughened, reinforced, and heat-resistant at the same time. Nanoparticles used for nanoparticle toughening include nano-SiO 2 、TiO 2 Particles, organic montmorillonite, etc., while sepiolite has a fibrous or needle-like structure, with a high shape ratio and high surface physical and chemical properties. The sepiolite is dispersed in the epoxy resin matrix by proper d...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K9/04
Inventor 郑亚萍郑建平黄英张国彬
Owner NORTHWESTERN POLYTECHNICAL UNIV
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