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Preparation method of modified organic montmorillonite/nylon 6 composite

A technology of organic montmorillonite and composite materials, which is applied in the field of preparation of modified organic montmorillonite/nylon 6 composite materials, can solve the problems of complex process, easy deformation, small elastic modulus, etc., and achieve improved interaction and affinity Strong, stable performance

Inactive Publication Date: 2017-09-19
盐城神力制绳有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nylon 6 is a widely used engineering plastic with excellent comprehensive properties, but it also has disadvantages such as small elastic modulus, easy deformation, poor heat resistance, light resistance, abrasion resistance and moisture absorption.
It is a good solution to modify nylon 6 with inorganic materials, especially inorganic nano-materials. Due to the large specific surface area of ​​nano-inorganic particles, it is easy to agglomerate, and the viscosity of nylon 6 is large, so the preparation of inorganic particles is small and Uniformly dispersed nylon 6 / inorganic nanocomposites still need to be further improved
At present, the preparation of nylon 6 / montmorillonite composite materials by intercalation polymerization has been industrialized abroad, but the composite materials also have uneven dispersion of nanoparticles, weak interaction between nanoparticles and nylon 6 matrix, and complicated processes. question

Method used

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  • Preparation method of modified organic montmorillonite/nylon 6 composite
  • Preparation method of modified organic montmorillonite/nylon 6 composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Using aminopropyl POSS to modify organic montmorillonite modified by 18 carboxyammonium bromide, the reaction principle is as follows figure 1 shown. First, add 300 mg of organic montmorillonite, magnetons and about 150 ml of thionyl chloride to a 250 ml one-necked flask respectively, and stir and reflux the reaction at 60° C. for 20 hours. It can be seen that before the reaction, it was a light yellow-brown turbid liquid, and after 24 hours, it was a black turbid liquid. The activated organic montmorillonite was obtained by suction filtration with a Buchner funnel. Then, the activated organic montmorillonite obtained by suction filtration was added into a 250ml one-necked flask, and then 300mg of aminopropyl POSS, magnetons and about 150ml of tetrahydrofuran were added, and the reaction was stirred and refluxed at 60°C for 20 hours. The gray powdery solid was obtained by suction filtration, put into a vacuum drying oven, dried in vacuum at 50 degrees Celsius for 24 h...

Embodiment 2

[0021] Using aminopropyl POSS to modify organic montmorillonite modified by 18 carboxyammonium bromide, the reaction principle is as follows figure 1 shown. Firstly, 1.5 g of organic montmorillonite, magneton and about 150 ml of thionyl chloride were respectively added into a 250 ml one-necked flask, and the reaction was stirred and refluxed at 90° C. for 30 hours. It can be seen that before the reaction, it was a light yellow-brown turbid liquid, and after 24 hours, it was a black turbid liquid. The activated organic montmorillonite was obtained by suction filtration with a Buchner funnel. Then, the activated organic montmorillonite obtained by suction filtration was added into a 250ml one-necked flask, and then 3g of aminopropyl POSS, magnetons and about 150ml of tetrahydrofuran were added, and the reaction was stirred and refluxed at 90°C for 30 hours. The gray powdery solid was obtained by suction filtration, put into a vacuum drying oven, dried under vacuum at 50°C for ...

Embodiment 3

[0023] Using aminopropyl POSS to modify organic montmorillonite modified by 18 carboxyammonium bromide, the reaction principle is as follows figure 1 shown. Firstly, 12 g of organic montmorillonite, magnetons and about 600 ml of thionyl chloride were respectively added into a 1-liter single-necked flask, and the reaction was stirred and refluxed at 75° C. for 24 hours. It can be seen that before the reaction, it was a light yellow-brown turbid liquid, and after 24 hours, it was a black turbid liquid. The activated organic montmorillonite was obtained by suction filtration with a Buchner funnel. Then, the activated organic montmorillonite obtained by suction filtration was added into a 1-liter single-necked flask, and then 24 g of aminopropyl POSS, magnetons and about 600 ml of tetrahydrofuran were added, and the reaction was stirred and refluxed at 75° C. for 24 hours. The gray powdery solid was obtained by suction filtration, put into a vacuum drying oven, dried in vacuum a...

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Abstract

The invention discloses a preparation method of a modified organic montmorillonite / nylon 6 composite material. It utilizes carboxyl group-containing organic montmorillonite to react with amino group-containing cage silsesquioxane to improve the interaction between modified organic montmorillonite and nylon 6, thereby compounding with nylon 6 to prepare a high-performance composite material. The preparation process is to first react carboxyl-containing organically modified montmorillonite with thionyl chloride to activate the carboxyl group, and then react it with aminopropyl cage silsesquioxane (POSS) to generate POSS-modified organic montmorillonite Soil, and then melt-extrude it with nylon 6 to prepare montmorillonite / nylon 6 composites. The composite material obtained in the preparation method of the invention has excellent properties, easy-to-obtain raw materials, simple modification method, and is suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a preparation method of a modified organic montmorillonite / nylon 6 composite material. Background technique [0002] Nylon 6 is a widely used engineering plastic with excellent comprehensive properties, but it also has disadvantages such as small elastic modulus, easy deformation, poor heat resistance, light resistance, abrasion resistance and moisture absorption. It is a good solution to modify nylon 6 with inorganic materials, especially inorganic nano-materials. Due to the large specific surface area of ​​nano-inorganic particles, it is easy to agglomerate, and the viscosity of nylon 6 is large, so the preparation of inorganic particles is small and Uniformly dispersed nylon 6 / inorganic nanocomposites still need to be further improved. At present, the preparation of nylon 6 / montmorillonite composite materials by intercalation polymerization ...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K9/06C08K9/04C08K9/02C08K3/34
CPCC08K9/08C08K3/346C08K9/02C08K9/04C08L2201/08
Inventor 王世东陈广新董红飞祁学勤
Owner 盐城神力制绳有限公司
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