Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nylon composite material, and preparation method and application thereof

A nylon composite material, nylon technology, applied in the direction of offensive equipment, fireproof coatings, coatings, etc., can solve the problems of unsatisfactory appearance quality, hot hand of the rifle hand guard, etc., and achieve the color of the outer surface without fading , The color of the outer surface is beautiful, and the effect of improving the heat insulation performance

Pending Publication Date: 2019-03-29
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the non-metallic materials used in my country's rifle guards have the characteristics of high strength, high toughness, aging resistance, wear resistance, mold resistance and salt spray resistance, their appearance quality is not very ideal, and the hot hand problem of rifle guards is also a problem. not well resolved

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 composite material, and preparation method and application thereof
  • Nylon composite material, and preparation method and application thereof
  • Nylon composite material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057]

[0058] A kind of preparation method of above-mentioned nylon composite material, it comprises the steps:

[0059] (1), 60-80 parts of long glass fiber reinforced nylon materials are dried to obtain dry long glass fiber reinforced nylon materials;

[0060] (2), dry long glass fiber reinforced nylon material, 20-35 parts of SiO 2 Airgel microspheres, 1-5 parts of foaming agent and 0.5-2 parts of antioxidant are mixed evenly, and stirred to obtain a mixture;

[0061] (3) Add the mixture into a twin-screw extruder to melt and extrude it, and then stretch it, cool it, dry it, and cut it into pellets to obtain a nylon composite material.

[0062] Wherein, in step (1), the moisture content of the long glass fiber reinforced nylon material can be 1.5-2%, preferably 1.5%; the drying temperature can be 80-100°C, preferably 80°C; the drying time can be 8- 12h, preferably 12h.

[0063] In step (3), the temperature of the twin-screw extruder is 275-330°C, and the extrusion ra...

Embodiment 1

[0078] The preparation method of the rifle handguard of the present embodiment comprises the steps:

[0079] (1), 60 parts of long glass fiber reinforced polyhexamethylene terephthalamide (PA6T) materials (moisture content 1.5%) with a long glass fiber content of 50wt% were dried at 80°C for 12h to obtain dried Long glass fiber reinforced polyhexamethylene terephthalamide (PA6T) material;

[0080] (2), dry long glass fiber reinforced polyhexamethylene terephthalamide (PA6T) material, 35 parts of SiO 2 Airgel microspheres (particle size is 20μm, porosity is 90%, density is 0.29g / cm 3 ), 1 part of p-toluenesulfonylsemicarbazide TSSC (as foaming agent) and 1 part of antioxidant 168 are mixed uniformly in a high-speed mixer, and stirred to obtain a mixture;

[0081] (3) Add the mixture to a twin-screw extruder for melt extrusion, and then stretch, cool, dry, and pelletize to obtain a nylon composite material; wherein, the temperature in each zone from the feeding port to the mac...

Embodiment 2

[0093] The preparation method of the rifle handguard of the present embodiment comprises the steps:

[0094] (1), 70 parts of long glass fiber reinforced polynonanediamine terephthalamide (PA9T) materials (moisture content 2%) with a long glass fiber content of 40wt% were dried at 90°C for 10h to obtain dried Long glass fiber reinforced polynonanediamine terephthalamide (PA9T) material;

[0095] (2), dry long glass fiber reinforced polynonanediamine terephthalamide (PA9T) material, 30 parts of SiO 2 Airgel microspheres (particle size is 40μm, porosity is 95%, density is 0.25g / cm 3 ), 2 parts of p-toluenesulfonyl semicarbazide TSSC (as blowing agent) and 0.5 part of antioxidant 1010 are mixed uniformly in a high-speed mixer, and stirred to obtain a mixture;

[0096](3) Add the mixture to a twin-screw extruder for melt extrusion, and then stretch, cool, dry, and pelletize to obtain a nylon composite material; wherein, the temperature in each zone from the feeding port to the m...

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
thermal resistanceaaaaaaaaaa
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention provides a nylon composite material, and a preparation method and an application thereof; the nylon composite material comprises a long glass fiber reinforced nylon material, SiO2 aerogel microspheres, a foaming agent and an antioxidant. The preparation method of the nylon composite material comprises the following steps: drying the long glass fiber reinforced nylon material, to obtain a dried long glass fiber reinforced nylon material; mixing the dried long glass fiber reinforced nylon material, the SiO2 aerogel microspheres, a foaming agent and an antioxidant, and stirring to obtain a mixture; and adding the mixture into a twin-screw extruder, melting and extruding, and treating to obtain the nylon composite material. The nylon composite material is used as a rifle handguard. The density of the prepared rifle handguard is reduced to 0.84-0.90 g / cm<3>, so as to achieve the purpose of lightweighting. The surface of the nylon composite material is sprayed with a SiO2 aerogel microsphere modified coating, so that the heat insulation performance and the high temperature resistance performance can be improved, and the practical application requirement is achieved.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a nylon composite material and its preparation method and application. Background technique [0002] Due to the diverse working conditions and environments of firearms, complex climates such as: low temperature in the north, high temperature and humidity in the south, mold in tropical rain forests, ocean corrosion in sea areas, radiation in plateau areas and wear and tear in desert areas, etc., firearms not only meet combat needs In addition, it must meet the requirements of service use. Therefore, strict tests must be carried out during the development of guns, mainly including high temperature, low temperature, rain, sand and dust, river immersion, salt spray, damp heat and drop tests; in addition, it must meet the storage requirements of 15 years. [0003] my country's rifles have long begun to use non-metallic materials. The main components include hand...

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): C08L77/06C08K7/14C08K7/26C08J9/10C09D183/04C09D133/04C09D125/14C09D7/61B29C48/92F41C27/00
CPCF41C27/00C09D125/14C09D133/04C09D183/04C08J9/103C08J9/104C08K7/14C08K7/26C09D5/18C08J2203/04C08K2201/004C08K2201/003C08J2377/06
Inventor 杨桂生丁先锋李兰杰
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com