Unlock instant, AI-driven research and patent intelligence for your innovation.

Nylon/carbon nanotube flame-retardant heat-conducting composite material and preparation method thereof

A technology of heat-conducting composite materials and carbon nanotubes, which is applied in the field of nylon resin-based flame-retardant and heat-conducting composite materials, can solve problems such as leakage of flame retardants, achieve the effects of reducing interface thermal resistance, improving flame-retardant performance, and enhancing thermal conductivity

Pending Publication Date: 2022-01-28
PINGDINGSHAN UNIVERSITY
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By adding the carbon nanotube filler modified by the flame retardant DDP into the nylon resin, the nylon / carbon nanotube flame-retardant and heat-conducting composite material is finally prepared by injection molding, which overcomes the defect of leakage of the existing additive flame retardant for nylon

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nylon/carbon nanotube flame-retardant heat-conducting composite material and preparation method thereof
  • Nylon/carbon nanotube flame-retardant heat-conducting composite material and preparation method thereof
  • Nylon/carbon nanotube flame-retardant heat-conducting composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A nylon / carbon nanotube flame-retardant and thermally conductive composite material provided by the present invention includes modified carbon nanotubes, nylon 6 resin and antioxidant 1010, and the added mass ratio of the three is:

[0041] Nylon 6 resin 79%;

[0042] Flame retardant DDP modified carbon nanotubes 20%;

[0043] Antioxidant 1010 1%;

[0044] The modified carbon nanotubes have a diameter of about 40 nm and a length of about 30 to 45 μm, which are surface-modified with KH-560 silane coupling agent, and then bonded with a flame retardant DDP to form a surface-grafted flame retardant. DDP carbon nanotubes.

[0045] The preparation method of the nylon / carbon nanotube flame-retardant and thermally conductive composite material of the present invention comprises the following steps:

[0046] (1) The surface of carbon nanotubes is modified by coupling agent KH-560, and then the flame retardant DDP is bonded to the surface of carbon nanotubes through a ring-ope...

Embodiment 2

[0057] A nylon / carbon nanotube flame-retardant and thermally conductive composite material provided by the present invention includes modified carbon nanotubes, nylon 6 resin and antioxidant 1010, and the added mass ratio of the three is:

[0058] Nylon 6 resin 89.5%;

[0059] Flame retardant DDP modified carbon nanotubes 10%;

[0060] Antioxidant 1010 0.5%;

[0061] The modified carbon nanotubes have a diameter of about 40 nm and a length of about 30 to 45 μm, which are surface-modified with KH-560 silane coupling agent, and then bonded with a flame retardant DDP to form a surface-grafted flame retardant. DDP carbon nanotubes.

[0062] The preparation method of the nylon / carbon nanotube flame-retardant and thermally conductive composite material of the present invention comprises the following steps:

[0063] (1) The surface of carbon nanotubes is modified by coupling agent KH-560, and then the flame retardant DDP is bonded to the surface of carbon nanotubes through a ring...

Embodiment 3

[0071] A nylon / carbon nanotube flame-retardant and thermally conductive composite material provided by the present invention includes modified carbon nanotubes, nylon 6 resin and antioxidant 1010, and the added mass ratio of the three is:

[0072] Nylon 6 resin 94.5%;

[0073] Flame retardant DDP modified carbon nanotubes 5%;

[0074] Antioxidant 1010 0.5%;

[0075] The modified carbon nanotubes have a diameter of about 40 nm and a length of about 30 to 45 μm, which are surface-modified with KH-560 silane coupling agent, and then bonded with a flame retardant DDP to form a surface-grafted flame retardant. DDP carbon nanotubes.

[0076]The preparation method of the nylon / carbon nanotube flame-retardant and thermally conductive composite material of the present invention comprises the following steps:

[0077] (1) The surface of carbon nanotubes is modified by coupling agent KH-560, and then the flame retardant DDP is bonded to the surface of carbon nanotubes through a ring-o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a nylon / carbon nanotube flame-retardant heat-conducting composite material and a preparation method thereof. The invention relates to a nylon / carbon nanotube flame-retardant heat-conducting composite material, which comprises the following raw material components in percentage by mass: 79-94.5% of nylon resin; 5-20% of a flame retardant DDP modified carbon nanotube; and 0.5-1% of an antioxidant. The preparation method of the nylon / carbon nanotube flame-retardant heat-conducting composite material comprises the following steps: carrying out surface modification grafting treatment on a carbon nanotube by adopting a coupling agent KH-560, and then bonding a flame retardant DDP to the surface of the carbon nanotube through carboxyl ring-opening reaction to obtain the carbon nanotube with the surface modified by the flame retardant DDP; uniformly dispersing the prepared carbon nanotube with the surface modified by the flame retardant DDP, nylon resin particles and an antioxidant to obtain a mixed base material; adding the obtained mixed base material into a double-screw extruder, and performing extrusion, melt blending and granulation to obtain slice granules of the composite material; and carrying out injection molding on the obtained slice granules to prepare the nylon / carbon nanotube flame-retardant heat-conducting composite material.

Description

technical field [0001] The invention relates to a nylon resin-based flame-retardant and thermally conductive composite material, in particular to a nylon / carbon nanotube flame-retardant and thermally conductive composite material and a preparation method thereof. Background technique [0002] Nylon (PA) is one of the most widely used engineering plastics. PA has excellent performance. It has good mechanical properties, oil resistance, corrosion resistance, wear resistance and many other excellent properties. It has been sought after by people since its production. Therefore, it is widely used in daily life and industry. Among them, the output of PA6 and PA66 is relatively large, accounting for more than 90% of the total output of nylon, and with the rapid development of communication, electronics, electrical and other industries, the demand for PA is increasing. For example, the use of nylon in household appliance shells, lamp shells, bases, sockets and other parts requires...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K9/06C08K9/04C08K9/02C08K3/04C08K5/134C08K5/5313
CPCC08K9/06C08K9/04C08K9/02C08K3/041C08K5/1345C08K5/5313C08L2201/02C08L77/02
Inventor 施雪军李青彬杜祥祥马爽任爽
Owner PINGDINGSHAN UNIVERSITY