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Nano-attapulgite-based polyether sulfone/nylon composite heat-resistant material and preparation method thereof

A technology of nano-attapulgite and heat-resistant materials, which is applied in the field of polyethersulfone/nylon composite materials to achieve the effects of dredging channels, good compatibility and high pore volume

Inactive Publication Date: 2017-10-24
DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above prior art that the thermal stability and mechanical properties of composite materials can be improved by combining polyethersulfone with caprolactam, but there is still room for improvement to meet the needs of higher fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Put attapulgite in 10mol / L hydrochloric acid solution for acid activation treatment, add acetone aqueous solution containing 0.5mol / L ethyl orthosilicate, wherein the volume ratio of acetone to water is 0.3:1, stir evenly, drop Add hydrochloric acid to adjust the pH value, the molar ratio of hydrochloric acid to tetraethyl orthosilicate is 1:0.001, then add ethanol and acetone with a volume ratio of 1:0.5, remove the solvent, and obtain attapulgite with silica attached. The content of silica in the attapulgite of silica is 10%.

[0026] (2) According to the mass ratio of caprolactam monomer to polyethersulfone is 100:0.5, heat the caprolactam monomer to 150°C until completely dissolved, add 2% sodium hydroxide, and vacuum at a vacuum degree of 0.1MPa Remove the moisture in the caprolactam monomer, add the dried polyethersulfone, after the polyethersulfone is completely dissolved, stir, vacuumize and remove the moisture, according to the mass ratio of attapulgite att...

Embodiment 2

[0028] (1) Put attapulgite in 12mol / L hydrochloric acid solution for acid activation treatment, add acetone aqueous solution containing 1mol / L ethyl orthosilicate, wherein the volume ratio of acetone to water is 0.8:1, stir evenly, drop Adjust the pH value with hydrochloric acid, the molar ratio of hydrochloric acid to tetraethyl orthosilicate is 1:0.001, then add ethanol and acetone with a volume ratio of 1:0.5, remove the solvent, and obtain attapulgite with silica attached. The content of silicon dioxide in silicon attapulgite is 25%.

[0029] (2) According to the mass ratio of caprolactam monomer to polyethersulfone is 100:5, heat the caprolactam monomer to 150°C until completely dissolved, add 2% sodium hydroxide, and vacuum at a vacuum degree of 0.1MPa Remove the moisture in the caprolactam monomer, add the dried polyethersulfone, after the polyethersulfone is completely dissolved, stir, vacuumize and remove the moisture, according to the mass ratio of attapulgite attach...

Embodiment 3

[0031] (1) Place attapulgite in 11mol / L hydrochloric acid solution for acid activation treatment, add acetone aqueous solution containing 0.6mol / L ethyl orthosilicate, wherein the volume ratio of acetone to water is 0.5:1, stir evenly, drop Add hydrochloric acid to adjust the pH value, the molar ratio of hydrochloric acid to tetraethyl orthosilicate is 1:0.001, then add ethanol and acetone with a volume ratio of 1:0.5, remove the solvent, and obtain attapulgite with silica attached. The content of silica in the attapulgite of silica is 15%.

[0032] (2) According to the mass ratio of caprolactam monomer to polyethersulfone is 100:1, heat the caprolactam monomer to 150°C until completely dissolved, add 2% sodium hydroxide, and vacuum at a vacuum degree of 0.1MPa Remove the moisture in the caprolactam monomer, add the dried polyethersulfone, after the polyethersulfone is completely dissolved, stir, vacuumize and remove the moisture, according to the mass ratio of attapulgite att...

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Abstract

The invention provides a polyethersulfone / nylon composite heat-resistant material based on nano-attapulgite and a preparation method thereof. The composite heat-resistant material includes polyethersulfone, nylon, attapulgite, nano-silica and modified chitosan Sugar, the specific preparation method is: put attapulgite in hydrochloric acid solution for acid activation treatment, add silicon dioxide precursor solution, stir evenly, add hydrochloric acid dropwise, then add ethanol and acetone, remove solvent, and obtain silica-attached Attapulgite: heat and dissolve the caprolactam monomer, add sodium hydroxide, vacuumize to remove water, add dried polyethersulfone, after dissolving, stir, vacuumize to remove water, add attapulgite with silica attached and Modified chitosan solution, stirred evenly, vacuumed to remove solvent, then under nitrogen atmosphere, added 1‑2% glutaraldehyde and 2‑3% 2,4‑toluene diisocyanate, heated in vacuum , stir rapidly, remove by-products, and obtain a polyethersulfone / nylon composite heat-resistant material based on nano-attapulgite.

Description

technical field [0001] The invention belongs to the technical field of polyethersulfone / nylon composite materials, and in particular relates to a polyethersulfone / nylon composite heat-resistant material based on nano-attapulgite and a preparation method thereof. Background technique [0002] Polyethersulfone is an amber transparent non-crystalline thermoplastic special engineering plastic. The sulfone group in polyethersulfone has heat resistance, and the ether group makes the polymer chain link have good fluidity in the molten state and is easy to form and process. Therefore, the alternating chain link sulfone group and ether group on the phenylene structure in polyethersulfone make polyethersulfone have outstanding oxidation resistance, heat resistance, impact resistance, high hydrolysis resistance and other excellent properties, so polyethersulfone It is widely used in the fields of electronic appliances, mechanical equipment and transportation. [0003] Nylon, also know...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L81/06C08L5/08C08K13/06C08K9/12C08K9/02C08K3/36C08K7/26C08K5/07C08K5/29C08G69/16
CPCC08L77/02C08G69/16C08K2201/011C08L2201/08C08L2205/03C08L2312/00
Inventor 陈东进
Owner DONGGUAN LIANZHOU INTPROP OPERATION MANAGEMENT CO LTD
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