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Nylon 6 with high performance and low melting-point and preparation method thereof

A low-melting-point, high-performance technology, applied in the field of nylon 6, can solve the problem of low-melting-point nylon 6 performance and achieve the effect of improved comprehensive performance and simple preparation process

Inactive Publication Date: 2012-04-11
贵州凯科特材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the low performance defects of the existing low-melting-point nylon 6, and provide a high-performance low-melting-point nylon 6 and a preparation method thereof. The prepared nylon 6 has a lower melting point and also has High strength, high impact, high heat resistance and other excellent properties, and the preparation method is simple

Method used

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  • Nylon 6 with high performance and low melting-point and preparation method thereof
  • Nylon 6 with high performance and low melting-point and preparation method thereof

Examples

Experimental program
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Effect test

experiment example 1

[0023] Experimental Example 1: Take 92Kg of ordinary nylon 6 (Baling Petrochemical YH800) and dry it at 80°C for 8 hours, and dry 8 Kg of LiCl (Tianjin Kemiou Lithium Chloride Anhydrous) at 140°C for 2 hours, and the dried ordinary nylon 6 and LiCl were extruded and granulated on a co-rotating twin-screw extruder (the rotation speed of the host screw was 240r / min, and the temperatures in the 1st to 7th stages were 205°C, 210°C, 210°C, 215°C, 215°C, 220°C, 225°C, respectively. ℃), the granulated material was dried at 80 ℃ for 4 hours, and then injection-molded on an injection molding machine to obtain high-performance low-melting-point nylon 6.

Embodiment 1

[0024] Example 1: Take 92Kg of ordinary nylon 6 (Baling Petrochemical YH800) and dry it at 70°C for 9 hours, and dry 8 Kg of LiCl (Tianjin Kemiou Lithium Chloride Anhydrous) at 150°C for 1 hour, take the dried ordinary Nylon 6, LiCl, 3kg of epoxy resin and 1kg of other additives are extruded and granulated on a co-rotating twin-screw extruder (the speed of the main screw is 240r / min, and the temperatures of the 1st to 7th stages are 205°C, 210°C, and 210°C respectively , 215°C, 215°C, 220°C, 225°C), the granulated material was dried at 80°C for 4 hours, and injection molded on an injection molding machine to obtain high-performance low-melting point nylon 6.

Embodiment 2

[0025] Example 2: Take 94Kg of ordinary nylon 6 and dry it at 90°C for 7 hours, and dry LiCl 6 Kg at 130°C for 3 hours, take the dried ordinary nylon 6, LiCl, 3kg of epoxy resin and 1kg of other additives in the same direction Extruded and granulated on a twin-screw extruder (the speed of the main screw is 240r / min, and the temperatures of the 1st to 7th stages are 205°C, 210°C, 210°C, 215°C, 215°C, 220°C, 225°C). The material was dried at 80°C for 4 hours, and then injection-molded on an injection molding machine to obtain high-performance low-melting-point nylon 6.

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Abstract

The invention discloses nylon 6 with high performance and low melting-point and preparation method thereof. The nylon 6 is mainly prepared from common nylon 6, LiCl, epoxy resin and other auxiliaries. In comparison with the existing technology, the invention better lowers the melting point of the nylon 6; moreover, the epoxy resin is added to perform mutual exchange reaction with the nylon 6 such that nylon 6 with high strength, high impact, high resistance and low melting-point can be obtained without adding glass fiber. The comprehensive performance of the nylon is largely raised. The preparation technology provided by the invention is simple, and is suitable to be applied in mass production.

Description

technical field [0001] The invention relates to the technical field of nylon 6, in particular to a high-performance low-melting-point nylon 6 and a preparation method thereof. Background technique [0002] Nylon 6 is an amide polymer with good wear resistance, self-lubrication, solvent resistance and good processability. It is widely used in industrial production to manufacture bearings, gears, cams, various rollers, pump impellers, and fan blades. , worm gears, propellers, screws, nuts, gaskets, high-pressure sealing rings, oil-resistant gaskets, oil-resistant containers, shells, cable sheaths, shears, pulley sleeves, planer sliders, electromagnetic distribution valve seats, cold storage Equipment, gaskets, bearing cages, various oil pipes on automobiles and tractors, etc., have a broad market. [0003] Nylon 6 can not only be used as a matrix resin, but also can be modified with other materials to make it have higher performance. However, due to the high processing temper...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L63/00C08L63/02C08K3/16
Inventor 吴斌张峰何敏明星星粟多文张家宝秦舒浩刘渝张纯杨荣强郭建兵
Owner 贵州凯科特材料有限公司
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