Intercalation preparation method of nylon 6/quaternary phosphonium salt modified montmorillonite nano composite material

A technology of nanocomposite materials and quaternary phosphonium salts, which is applied in the field of intercalation preparation, can solve the problems of difficulty in realizing nano-effects, low thermal decomposition temperature of quaternary ammonium salts, and detachment of intercalation agents, so as to solve the discoloration and thermal stability of nylon 6 resin The effect of high stability and stable chemical properties

Active Publication Date: 2012-01-18
GUANGDONG XINHUI MEIDA NYLON
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]1. Commonly used intercalation modifiers are long-chain alkyl quaternary ammonium salts, but the thermal decomposition temperature of quaternary ammonium salts is low. When desoiling and engineering plastics are melt blended and intercalated, engineering plastics will be discolored due to the decomposition of quaternary ammonium salts, which restricts the application of organic montmorillonite in engineering plastics
[0007]2. The modification method of montmorillonite is that the organic small molecule intercalation agent enters the interlayer of montmorillonite through ion exchange, and the intercalation agent and mon

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
  • Intercalation preparation method of nylon 6/quaternary phosphonium salt modified montmorillonite nano composite material
  • Intercalation preparation method of nylon 6/quaternary phosphonium salt modified montmorillonite nano composite material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] A method for preparing intercalation of nylon 6 / quaternary phosphonium salt modified montmorillonite nanocomposite material, comprising the following steps:

[0022] 1) Add quaternary phosphonium salt and sodium montmorillonite into water in a mass ratio of 1:3-5, and stir at 60-100°C for 4-8h;

[0023] 2) filtering the solution in step 1), washing the obtained solid, drying, grinding, and sieving to obtain quaternary phosphonium salt intercalation modified montmorillonite;

[0024] 3) Take the quaternary phosphonium salt intercalation modified montmorillonite and caprolactam in step 2), add them into the reaction kettle, stir evenly at room temperature, add water, benzoic acid and isophthalic acid into the reaction kettle, carry out under the protection of inert gas Hydrolysis polymerization reaction, the reaction temperature is 250-260 ℃, the reaction time is 6-8h, after the reaction, cut into pellets to obtain slices of nylon 6 / montmorillonite nanocomposite material,...

Example Embodiment

[0028] Example 1:

[0029] A method for preparing intercalation of nylon 6 / quaternary phosphonium salt modified montmorillonite nanocomposite material, comprising the following steps:

[0030] 1) Weigh 200g of sodium-based montmorillonite powder and 60g of octadecyltributylphosphonium bromide, add them to 1L of distilled water, and stir the above solution at 80°C for 360min to carry out the organic intercalation of montmorillonite. reaction modification;

[0031] 2) the above solution is subjected to vacuum filtration, and the obtained solid is washed with deionized water, vacuum-dried, ground, and passed through a 300-mesh sieve, and the obtained solid is the quaternary phosphonium salt intercalation modified montmorillonite;

[0032] 3) Weigh 150 g of the above-mentioned quaternary phosphonium salt modified montmorillonite and 3000 g of caprolactam, add them into the reaction kettle, stir evenly at room temperature, add water, benzoic acid and isophthalic acid into the re...

Example Embodiment

[0035] Example 2:

[0036] A method for preparing intercalation of nylon 6 / quaternary phosphonium salt modified montmorillonite nanocomposite material, comprising the following steps:

[0037] 1) Weigh 180g of sodium-based montmorillonite powder and 60g of octadecyltributylphosphonium bromide, add them into 1L of distilled water, and stir the above solution at 60°C for 4h to conduct organic intercalation of montmorillonite. reaction modification;

[0038] 2) the above solution is subjected to vacuum filtration, and the obtained solid is washed with deionized water, vacuum-dried, ground, and passed through a 300-mesh sieve, and the obtained solid is the quaternary phosphonium salt intercalation modified montmorillonite;

[0039] 3) Weigh 150g of above-mentioned quaternary phosphonium salt-modified montmorillonite and 2700g of caprolactam, add to the reaction kettle, stir evenly at room temperature, add water, benzoic acid, and isophthalic acid into the reaction kettle, and t...

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

No PUM Login to view more

Abstract

The invention discloses an intercalation preparation method of a nylon 6/quaternary phosphonium salt modified montmorillonite nano composite material. The method comprises the following steps: 1) adding quaternary phosphonium salt and sodium-based montmorillonite into water in a mass ratio of 1:(3-5), and stirring for 4-8 hours at the temperature of 60-100 DEG C; 2) filtering a solution obtained in the step 1) so as to obtain a solid, washing, drying, grinding, and sieving so as to obtain quaternary phosphonium salt intercalation modified montmorillonite; 3) evenly stirring the quaternary phosphonium salt intercalation modified montmorillonite obtained in the step 2) with caprolactam at room temperature, adding water and an auxiliary for carrying out hydrolysis polymerization reaction on caprolactam, and pelletizing after reaction so as to obtain a nylon 6/montmorillonite nano composite material slice, wherein the mass ratio of quaternary phosphonium salt intercalation modified intercalation modified montmorillonite to caprolactam is 1: (18-22); and 4) extracting the slice obtained in the step 3) with water. The product obtained by the method in the invention has good mechanical property and color is not easily to change.

Description

technical field [0001] The invention relates to an intercalation preparation method of nylon 6 / quaternary phosphonium salt modified montmorillonite nano composite material. Background technique [0002] Intercalation composite method is an important method to prepare high-performance polymer-based nanocomposites, and it is also one of the current research hotspots in the field of materials science. It is to insert the monomer between the montmorillonite sheets for in-situ polymerization, or the polymer is directly inserted between the montmorillonite sheets, thereby destroying the sheet structure of the montmorillonite to form a polymer nanocomposite material. The composite of the polymer and the montmorillonite at the nanometer level greatly increases the interfacial interaction between the polymer and the montmorillonite, so that the composite material has excellent mechanical properties. [0003] Polymer / montmorillonite nanocomposites have the advantages of excellent com...

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
IPC IPC(8): C08G69/16C08K9/04C08K3/34
Inventor 梁伟东毛新华戈明亮宋明简锦炽陈欣谌继宗
Owner GUANGDONG XINHUI MEIDA NYLON
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap