Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of nano-alumina filled cast nylon 6 composition and preparation method thereof

A technology of nano-alumina and cast nylon, which is applied in the field of polymer composite materials, can solve the problems of easy agglomeration of hydrophilicity, difficulty in achieving the expected effect, and inability to maintain nanoscale dispersion well, so as to solve the problems of easy agglomeration and increase strength Effect

Active Publication Date: 2022-08-09
HEFEI GENIUS NEW MATERIALS
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nano-alumina powder has abundant surface hydroxyl groups and excellent mechanical, optical, and flame-retardant properties, but its surface is hydrophilic and easy to agglomerate, which cannot keep the nanoscale dispersed in the polymer matrix well. It is also difficult to achieve the expected effect after the powder is modified by the joint agent

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of nano-alumina filled cast nylon 6 composition and preparation method thereof
  • A kind of nano-alumina filled cast nylon 6 composition and preparation method thereof
  • A kind of nano-alumina filled cast nylon 6 composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Put 100 parts of caprolactam and 2 parts of sodium caprolactam into the reaction kettle, heat up to 130 ° C, close the kettle and turn on the negative pressure to remove water for 5 minutes, and the stirring speed is 500 rpm; open the kettle and add 1 part of pretreated nano-alumina, 0.5 1 part of activator, 1 part of antioxidant 1098, and 1 part of antioxidant 626 were mixed evenly and cast into a mold, the mold temperature was 160°C, and the curing time was maintained for 30 minutes. A cast nylon composition was prepared.

Embodiment 2

[0029] Put 100 parts of caprolactam and 3 parts of sodium caprolactam into the reaction kettle, heat up to 140 ° C, close the kettle and turn on the negative pressure to remove water for 3 minutes, and the stirring speed is 400 rev / min; open the kettle and add 5 parts of pretreated nano-alumina, 1 Part activator, 0.5 part antioxidant 1098, and 0.5 part antioxidant 626 were stirred evenly and cast into the mold, the mold temperature was 180°C, and the curing time was maintained for 40 minutes. A cast nylon composition was prepared.

Embodiment 3

[0031] Put 100 parts of caprolactam and 2 parts of sodium caprolactam into the reaction kettle, heat up to 130 ° C, close the kettle and turn on the negative pressure of the pump to remove water for 4 minutes, and the stirring speed is 400 rpm; open the kettle and add 4 parts of pretreated nano-alumina, 1 Activator, 0.5 part of antioxidant 1098, 0.5 part of antioxidant 626 were stirred evenly and cast into the mold, the mold temperature was 170°C, and the curing time was maintained for 35 minutes. A cast nylon composition was prepared.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a nano-alumina-filled cast nylon 6 composition, which is prepared from the following components by weight: 100 parts of caprolactam, 2-3 parts of sodium caprolactam, 0.5-1 part of an activator, and pretreated nano-alumina 1-5 parts, antioxidant 1098 0.5-1 part, antioxidant 626 0.5-1 part; the preparation method of pretreated nano-alumina is: adding nano-alumina and cocoamidopropyl dimethyl amine oxide into In a ball mill, the pretreated nano-alumina is obtained by ball milling and mixing. The invention also discloses a preparation method of the above substances. The invention uses cocamidopropyl dimethyl amine oxide to carry out special surface treatment on nano-alumina, solves the problem of easy agglomeration of nano-alumina, can well keep nano-scale dispersed in the polymer matrix, and can Significantly improve the strength and impact properties of cast nylon compositions.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and particularly relates to a nano-alumina-filled cast nylon 6 composition and a preparation method thereof. Background technique [0002] Nanomaterials are one of the high-tech products in the world today. The emergence of nanomaterials not only promotes the emergence of a number of new industries, but also injects new vitality into the development of traditional industries. Among them, nanoparticles are the most widely used, play the largest role, and have the most extensive application prospects. However, nanoparticles have brought new problems due to their small size effects, surface and interface effects, and quantum effects. Nanoparticles have high surface activity and surface energy, and they are easy to agglomerate themselves, resulting in lower surface energy and lower surface activity, resulting in the disappearance of many excellent properties of nanoparticles. Therefore, t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G69/14C08G69/16C08K9/04C08K3/22C08K5/20C08K13/06
CPCC08G69/14C08G69/16C08K9/04C08K3/22C08K5/20C08K13/06C08K2201/011C08K2003/2227
Inventor 杨桂生方永炜项灵芝邹冲姚晨光朱敏
Owner HEFEI GENIUS NEW MATERIALS