Rectorite/thermoplastic polyurethane elastomer nano composite material and preparing method

A technology of thermoplastic polyurethane and nanocomposite materials, which is applied in the field of polymer processing, can solve the problems of TPUR's performance and service life not being fully utilized, TPUR's raw material modification and innovation capabilities not being fully developed, and molecular structure complexity. Achieve the effects of improved friction performance, wide applicability, and simple operation process

Inactive Publication Date: 2004-02-11
马晓燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Thermoplastic polyurethane elastomer (TPUR) is a kind of special and widely used polymer material whose performance and processing technology are between rubber and plastic. Its molecular structure is relatively complex, and it can be widely used in the production of automotive interior decoration. M

Method used

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  • Rectorite/thermoplastic polyurethane elastomer nano composite material and preparing method
  • Rectorite/thermoplastic polyurethane elastomer nano composite material and preparing method
  • Rectorite/thermoplastic polyurethane elastomer nano composite material and preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Melt 100 parts of polyester-type thermoplastic polyurethane elastomer TPUR with a hardness of 85A on a two-roll kneader, control the temperature of the two-rolls at 145°C, add 2 parts of release agent, 8 parts of organic rectorite clay, pre-mix, thin After passing through for 30 minutes, the tablet was lowered with an appropriate thickness, and the nanocomposite material was obtained by granulation. Implementation example 2

Embodiment 2

[0028] Melt 100 parts of polyether-type thermoplastic polyurethane elastomer TPUR with a hardness of 85A on a double-roller kneader, control the temperature of the double-rollers at 120°C, add 2 parts of release agent, 8 parts of organic rectorite clay, pre-mix, thin After passing through for 30 minutes, the tablet was lowered with an appropriate thickness, and the nanocomposite material was obtained by granulation.

[0029] see figure 2 , the present invention blends 100-150 parts of thermoplastic polyurethane elastomer TPUR, 1-5 parts of release agent, and 1-10 parts of organic rectorite clay on a high-speed kneader, and then melts and extrudes it on a twin-screw extruder. The temperature of the front section of the screw extruder is 80°C-110°C, the temperature of the middle section is 130°C-150°C, the temperature of the back section is 145°C-170°C, the temperature of the head is 80°C-100°C, and the extruded material can be obtained by granulating Clay Nanocomposites. Imp...

Embodiment 3

[0030] Blend 100 parts of polyester thermoplastic polyurethane elastomer TPUR, 2 parts of release agent, and 8 parts of organic rectorite clay on a high-speed kneader, and then melt and extrude it on a twin-screw extruder. Process parameters: front temperature 80°C , the temperature in the middle section is 130°C, the temperature in the back section is 145°C, and the temperature in the head is 80°C. The extruded material is granulated to obtain the clay nanocomposite material. Implementation Example 4

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Abstract

The present invention relates to processing of polymer and is especially a kind of composite nano rectorite/thermoplastic polyurethane elastomer material prepared through smelting and blending process. Owing to the surface and interface effect of the nano particle, the composite material of the present invention has its mechanical performance and heat performance superior to those of traditional composite material in the same chemical composition. The composite material is prepared with thermoplastic polyurethane elastomer of different kinds 100-150 weight portions, organic rectorite clay 1-10 weight portions and demolding agent 1-5 weight portions and through simple pollution-less smelting and blending process. The composite material has wide application.

Description

1. Technical field: [0001] The invention belongs to the field of polymer processing, in particular to a rectorite / thermoplastic polyurethane elastomer nanocomposite material prepared by a melt blending method. 2. Background technology: [0002] Organic-inorganic nanocomposites are known as "new materials of the 21st century". Compared with traditional composite materials, due to the surface and interface effects brought by nanoparticles, nanocomposites have better mechanical and thermal properties than conventional composite materials with the same chemical composition. At present, the clay nanocomposites that have been reported mainly include polyamide (imide) / montmorillonite, unsaturated polyester / layered clay, polystyrene / clay, polypropylene / clay, styrene-butadiene rubber / clay, Carboxylated nitrile rubber / clay, etc., wherein the clay is mainly montmorillonite. [0003] Thermoplastic polyurethane elastomer (TPUR) is a kind of special and widely used polymer material whos...

Claims

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Application Information

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IPC IPC(8): C08K5/00C08L75/04
Inventor 马晓燕鹿海军朱光明
Owner 马晓燕
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