Method for preparing novel nylon 12 composite material

A composite material, nylon technology, applied in the field of preparation of new nylon 12 composite materials, can solve the problems of complex process, low efficiency, pollution, etc., and achieve the effect of simple process, high efficiency and short process

Inactive Publication Date: 2008-06-18
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, these methods are complicated in process, long in process, low in efficiency, and some have pollution

Method used

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  • Method for preparing novel nylon 12 composite material
  • Method for preparing novel nylon 12 composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The content of montmorillonite is 0.5%, the content of maleic anhydride grafted polypropylene is 20%, the content of laurolactam is 77.9%, the initiator is 0.8%, and the activator is 0.8%. Mix the above materials evenly in the mixer Finally, through twin-screw extrusion, the screw temperature is controlled at 200-250°C. The performance of the prepared nylon 12 / polyolefin / montmorillonite composite material is shown in attached table 1

Embodiment 2

[0021] With embodiment 1, montmorillonite content is 1%, the content of maleic anhydride grafted polypropylene is 20%, initiator 0.5%, activator 0.5%, the performance of the nylon 12 / polyolefin / montmorillonite composite material prepared See Schedule 1

Embodiment 3

[0023] Same as Example 1, the content of montmorillonite is 2%, the content of polyolefin is 20%, the initiator is 2%, and the activator is 2%. The properties of the prepared nylon 12 / polyolefin / montmorillonite composite material are shown in attached table 1

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Abstract

The present invention relates to a novel preparation method of a nylon 12 composite, which comprises technical steps as follows: (1). 20 to 40wt percent of polyolefin is added into melted nylon 12 monomer to be dispersed by stirring; (2). 0.5 to 2w percent of montmorillonite is dispersed into the melted nylon 12 monomer; (3). after the two materials are mixed, 0.5 to 2wt percent of initiator and 0.5 to 2wt percent of cocatalyst are added for the anionic ring-opening polymerization of the monomer to obtain the composite. Compared with the prior art, the present invention has the characteristics of simple technology, short flow, high efficiency, no pollution, etc.

Description

technical field [0001] The invention relates to a method for modifying nylon 12 with montmorillonite and polyolefin, especially the preparation and modification method of high-viscosity nylon 12. Background technique [0002] Nylon 12 (PA12) has low water absorption, good low temperature resistance, good air tightness, excellent alkali resistance and grease resistance, medium resistance to alcohols, inorganic dilute acids and aromatic hydrocarbons, good mechanical properties and electrical properties, and is a natural extinguishing material. At present, it is widely used in fuel pipes and brake pipes, optical fiber sheaths, photoelectric fiber coatings, sports equipment and food packaging in automobiles. However, due to the high cost of nylon 12 compared with the largest amount of nylon 6 and 66, its application range is seriously affected. How to reduce the cost on the basis of maintaining the mechanical properties of nylon 12 is an important problem facing the expansion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08G69/16C08G69/18B29C47/92B29C47/40C08L23/00B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/40B29C2948/92885
Inventor 杜立波杨桂生
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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