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Super-tough nylon alloy and preparation method thereof

A nylon and alloy technology, applied in the field of engineering plastic modification, can solve the problems of poor low temperature resistance, high water absorption, and poor impact resistance.

Inactive Publication Date: 2010-07-21
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nylon has outstanding performance in terms of bending strength, wear resistance, creep resistance, electrical properties, etc., but most nylon varieties have poor impact resistance, especially low temperature resistance, and high water absorption. Therefore, it is limited its application in many ways

Method used

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  • Super-tough nylon alloy and preparation method thereof
  • Super-tough nylon alloy and preparation method thereof
  • Super-tough nylon alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The mass percentage is nylon 6665%, itaconic acid grafted ethylene-α-octene copolymer 35%, antioxidant 1010 0.25%, antioxidant 168 0.25%, lubricant TAF 0.5%, in a high mixer After mixing evenly at room temperature, put the material into the twin-screw extruder, the extrusion temperature is 260-280°C, the main engine speed is 300r / min, after traction, cooling, pelletizing, the pellets are vacuumed at 80°C Let dry for 8 hours.

Embodiment 2

[0026] The mass percentage is nylon 66 70%, itaconic acid grafted ethylene-α-octene copolymer 30%, antioxidant 1010 0.25%, antioxidant 168 0.25%, lubricant TAF 0.5%, in the high mixer After mixing evenly at room temperature, put the material into the twin-screw extruder, the extrusion temperature is 260-280°C, the main engine speed is 300r / min, after traction, cooling, pelletizing, the pellets are at 80°C Dry under vacuum for 8 hours.

Embodiment 3

[0028] The mass percent is nylon 66 75%, itaconic acid grafted ethylene-α-octene copolymer 25%, antioxidant 1010 0.25%, antioxidant 168 0.25%, lubricant TAF 0.5%, in the high mixer After mixing evenly at room temperature, put the material into the twin-screw extruder, the extrusion temperature is 260-280°C, the main engine speed is 300r / min, after traction, cooling, pelletizing, the pellets are at 80°C Dry under vacuum for 8 hours.

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Abstract

The invention discloses a super-tough nylon alloy, which is characterized by comprising raw material by weight percent: 65-90% of nylon, 10-35% of itaconic acid grafting ethylene-alpha-octylene copolymer (POE-g-ITA), 0.1-1% of antioxygen, 0.2-1% of lubricating agent, TAF. A method for preparing the super-tough nylon alloy is characterized by comprising the following steps: placing all raw material into a high mixer and mixing the raw materials for 5-10min; then placing the mixed raw materials into a double screw extrusion machine for extrusion and pelleting; carrying out traction, cooling and grain-sized dicing, finally drying the grain material; wherein main engine speed is 200-400r / min, temperature is 250-280 DEG C. The invention aims to prepare a novel super-tough nylon material which can be widely applied to the fields such as automobiles, electric products, office appliances and constructional engineering.

Description

technical field [0001] The invention relates to a super-tough nylon alloy and a preparation method thereof, in particular to a method for preparing super-tough nylon by grafting polyolefin elastomer with itaconic acid, which can be applied to the fields of automobiles, electronic appliances, office appliances, construction engineering, etc. The invention belongs to the technical field of engineering plastic modification. Background technique [0002] Polyamide (commonly called nylon) is one of the engineering materials with the largest output, the most varieties, the widest application and excellent comprehensive performance among the five general-purpose engineering plastics. It can be widely used in automobiles, electronic appliances, office appliances, construction projects, etc. . Nylon has outstanding performance in terms of bending strength, wear resistance, creep resistance, electrical properties, etc., but most nylon varieties have poor impact resistance, especially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/06C08L77/02C08L51/06C08K5/134C08K5/526C08K5/20B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 王克俭王小黎
Owner BEIJING UNIV OF CHEM TECH
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