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Nano composite material of graphene/nylon/elastomer and preparation method thereof

A nanocomposite material and graphene technology, which is applied in the field of polymers, can solve the problems of ignoring the comprehensive performance of nylon materials and not being suitable for commercial production, and achieve the effects of improved strength and toughness, low cost, and fewer processes

Inactive Publication Date: 2017-03-08
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research on graphene / nylon composites focuses on the effect of graphene on improving the strength of nylon, while ignoring the consideration of the comprehensive performance of nylon materials.
In addition, almost all the reported methods for preparing graphene / nylon composites are not suitable for commercial production.

Method used

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  • Nano composite material of graphene/nylon/elastomer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Put 1000 parts of caprolactam into the flask to heat and melt, then add 0.1 part of single-layer graphene, and use strong ultrasound for 5 minutes to obtain a mixed melt;

[0049] (2) Add 1 part of alkaline earth metal and 0.1 part of 2,4 toluene diisocyanate into the mixed melt, and shake to obtain a blend;

[0050] (3) Put the blend liquid into the feeding tank of the extruder, start the machine, adjust the flow rate of the feeding tank, react and extrude at a uniform speed, and then granulate after cooling in a cold water bath to obtain the masterbatch of graphene / nylon composite material;

[0051] (4) Melt, blend and extrude the masterbatch obtained above with 1 part of polyurethane elastomer, and add 0.5 parts of cyclic anhydride compatibilizer and 5 parts of plasticizer at the same time, and the extruded material is passed through cold water After the bath is cooled, it is sent to a cutting machine for cutting and pelletizing to obtain a graphene / nylon / elastom...

Embodiment 2

[0053] (1) Put 1000 parts of caprolactam into the flask to heat and melt, then add 1 part of double-layer graphene, and use strong ultrasound for 10 minutes to obtain a mixed melt;

[0054] (2) Add 10 parts of sodium hydroxide and 1 part of N-acetylcaprolactam into the mixed melt, and shake to obtain a blend;

[0055] (3) Put the blend liquid into the feeding tank of the extruder, start the machine, adjust the flow rate of the feeding tank, react and extrude at a uniform speed, and granulate after cooling in a cold water bath to obtain the masterbatch of graphene / nylon composite material;

[0056] (4) Melt, blend and extrude the masterbatch obtained above with 10 parts of polyolefin elastomer, and add 1 part of carboxylic acid type compatibilizer and 10 parts of antioxidant at the same time, and the extruded material is passed through cold water After the bath is cooled, it is sent to a cutting machine for cutting and pelletizing to obtain a graphene / nylon / elastomer nanocompos...

Embodiment 3

[0058] (1) Put 1000 parts of caprolactam into the flask to heat and melt, then add 100 parts of few-layer graphene, and use strong ultrasound for 20 minutes to obtain a mixed melt;

[0059] (2) Add 30 parts of sodium caprolactam and 10 parts of N-benzoyl caprolactam into the mixed melt, and shake to obtain a blend;

[0060] (3) Put the blend liquid into the feeding tank of the extruder, start the machine, adjust the flow rate of the feeding tank, react and extrude at a uniform speed, and granulate after cooling in a cold water bath to obtain the masterbatch of graphene / nylon composite material;

[0061] (4) Melt, blend and extrude the masterbatch obtained above with 100 parts of polyamide elastomer, and add 5 parts of epoxy compatibilizer and 20 parts of light stabilizer at the same time, and the extruded material is passed through cold water After the bath is cooled, it is sent to a cutting machine for cutting and pelletizing to obtain a graphene / nylon / elastomer nanocomposite...

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Abstract

The invention discloses a preparation method of a graphene / nylon / elastomer nano composite material. The preparation method comprises the following steps: at first, pre-dispersing graphene in molten polyamide monomers; then adding a catalyst and an activator into the mixed melt of pre-dispersed graphene / polyamide monomers, mixing to obtain a blended solution; adding the blended solution into an extruder, carrying out reactions, extruding the reaction products, carrying out granulation to obtain the master batch of a graphene / nylon nano composite material; adding the abovementioned master batch and elastomer master batch into the extruder, melting, blending, and extruding the mixture to obtain the graphene / nylon / elastomer nano composite material. Graphene is evenly dispersed in the graphene / nylon / elastomer nano composite material. The industrial massive production of the nano composite material is realized. The phenomenon that the toughness of a composite material degrades due to added graphene is greatly relieved. Compared with pure nylon, the mechanical properties such as strength, toughness, modulus, and the like, and thermal properties such as thermal degradation temperature and the like, of the provided nano composite material are prominently improved, and thus the application range is enlarged.

Description

technical field [0001] The method of the invention relates to the technical field of polymers, in particular to a high-performance graphene / nylon / elastomer nanocomposite material and a preparation method thereof. Background technique [0002] Graphene is the thinnest and hardest nanomaterial known in the world. It has extraordinary mechanical properties, excellent electrical and thermal conductivity, high specific surface area, and unique two-dimensional structure. It is very suitable for building high-performance polymers. Based nanocomposites are often used as reinforcing phases and functional phases in composite materials. [0003] Nylon is currently one of the most widely used engineering plastics, which has the advantages of high melting point, good wear resistance and fatigue resistance; at the same time, it also has disadvantages such as relatively low strength and modulus. [0004] Therefore, graphene can be used as the reinforcing phase of nylon, and the strength a...

Claims

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Application Information

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IPC IPC(8): C08G69/14C08G69/16C08K3/04C08L77/02C08L75/04C08L23/00C08L77/00C08K5/09
Inventor 付绪兵杨桂生
Owner HEFEI GENIUS NEW MATERIALS
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