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Low-temperature-resistant toughened nylon material and preparation method thereof

A nylon composite material with low temperature resistance technology, applied in the field of polymer processing, can solve the problems of not providing excellent ductility of the material, and achieve the effect of broad market application prospects, low cost, and simple preparation process

Active Publication Date: 2013-12-18
SHANGHAI KINGFA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above patents have obtained toughened nylon alloy materials, they have not provided a solution that can still maintain the excellent ductility of the material at a low temperature of -40°C

Method used

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  • Low-temperature-resistant toughened nylon material and preparation method thereof
  • Low-temperature-resistant toughened nylon material and preparation method thereof
  • Low-temperature-resistant toughened nylon material and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0019] The low temperature resistant and toughened nylon material of this embodiment has the following composition and weight percentages of each composition: 70wt% of nylon 66 resin, 13wt% of maleic anhydride grafted polyolefin elastomer, 15wt% of polyamide elasticity, 1.5wt% of silicone oil, Antioxidant 0.5wt%.

[0020] The preparation process of the low temperature resistant toughened nylon material is as follows:

[0021] First, add nylon 66 resin, maleic anhydride grafted polyolefin elastomer, polyamide elastomer, silicone oil and antioxidant into the high-speed mixer, stir evenly, and then feed the mixture into the twin-screw extruder from a precision feeder machine, cooling, drying and pelletizing after extrusion.

Embodiment 2

[0023] The low temperature resistant and toughened nylon material of this embodiment has the following composition and weight percentages of each composition: nylon 66 resin 74wt%, maleic anhydride grafted polyolefin elastomer 15wt%, polyamide elastomer 10wt%, silicone oil 0.5wt% , Antioxidant 0.5wt%.

[0024] The preparation process of the low temperature resistant toughened nylon material is as follows:

[0025] First, add nylon 66 resin, maleic anhydride grafted polyolefin elastomer, polyamide elastomer, silicone oil and antioxidant into the high-speed mixer, stir evenly, and then feed the mixture into the twin-screw extruder from a precision feeder machine, cooling, drying and pelletizing after extrusion.

Embodiment 3

[0027] The low temperature resistant and toughened nylon material of this embodiment has the following composition and weight percentages of each composition: nylon 66 resin 74wt%, maleic anhydride grafted polyolefin elastomer EPDM rubber 15wt%, polyamide elastomer 10wt% , 0.5wt% silicone oil, 0.5wt% antioxidant.

[0028] The preparation process of the low temperature resistant toughened nylon material is as follows:

[0029] First, add nylon 66 resin, maleic anhydride grafted EPDM rubber, polyamide elastomer, silicone oil and antioxidant into the high-speed mixer, stir evenly, and then feed the mixture into the twin-screw extruder from a precision feeder. Extruded from the machine, cooled, dried and pelletized after extrusion.

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Abstract

The invention discloses a low-temperature-resistant toughened nylon composite material and a preparation method thereof. The composite material is prepared from the following raw materials in percentage by mass: 70-76wt% of nylon resin, 13-20wt% of toughener, 5-15wt% of auxiliary toughener A, 0.5-1.5wt% of auxiliary toughener B and 0-1.0wt% of other additives. Compared with the prior art, the product disclosed by the invention has favorable mechanical property and low temperature resistance, can be used for spare parts such as bandages, fasteners and the like, and can meet the requirements for working in a severe low-temperature condition; and the preparation process of the product is simple in process and low in cost, and meets the requirements for industrial production. Thus, the low-temperature-resistant toughened nylon composite material disclosed by the invention has broad market application prospects.

Description

technical field [0001] The invention relates to a low temperature resistant and toughened nylon material and a preparation method thereof, belonging to the field of polymer processing. Background technique [0002] Nylon 6 is an engineering plastic with a wide range of uses. Its melting point is 215-225°C and its service temperature ranges from -40°C to 150°C. Nylon resin has excellent comprehensive properties such as high mechanical strength, heat resistance, self-lubricating property, excellent barrier performance and chemical corrosion resistance, and can be widely used in machinery manufacturing, electronic appliances, transportation and other fields, but pure Nylon also has obvious disadvantages, such as: high water absorption, poor dimensional stability of the product; poor low temperature performance, which restricts its use in low temperature environments; although it has certain self-lubricating properties, its friction coefficient Can not meet the requirements of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08L51/06
Inventor 肖军华丁正亚李志路刘晓亮
Owner SHANGHAI KINGFA SCI & TECH
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