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Parachute fixing disc material and preparation method thereof

A fixed disc and parachute technology, applied in the field of materials, can solve the problems of unqualified wear resistance of the fixed disc, poor dimensional stability, easy deformation of the fixed disc, etc., to meet the requirements of ultra-low temperature testing and use, high dimensional stability, and increase product size. The effect of stability

Inactive Publication Date: 2019-12-20
NANJING JULONG SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, during the use of the plastic parachute fixing plate, the following problems are faced: 1) When the fast or heavy load falls, it is prone to deformation, poor dimensional stability, and has certain safety hazards; 2) The friction resistance of the fixing plate is unqualified; 3) In high In severe and complex environments such as low temperature, the fixed plate is easily deformed or cracked. For example, the test at 125°C and -50°C for a long time is unqualified
So far, the above problems have not been resolved

Method used

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  • Parachute fixing disc material and preparation method thereof
  • Parachute fixing disc material and preparation method thereof
  • Parachute fixing disc material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 1. 70 parts of polyamide is polyamide 1012, the alloy component is 25 parts of polypyromellitic diamide, the toughening agent is 12 parts of aminobutyl rubber, and the wear-resistant additive is 1 part of microporous glass beads , 0.5 parts of other additives (0.3 parts of antioxidant 1098 and 0.2 parts of silicone powder) were added into the mixer and pre-mixed for 1-3 minutes to obtain a mixture.

[0032] 2. Add the mixture obtained in the above step (1) into the twin-screw extruder through the hopper, and accurately weigh 7 parts of the reinforcing agent as whiskers through a weight loss scale and introduce it into the extruder through a side feeder. Compounding, mixing, extruding, drawing, air-drying, and granulation to obtain polyamide composite materials that can be used for parachute fixed disks; wherein, the temperature of the extruder is set to a zone to the head: 250-330°C.

[0033] 3. Pass the mixture obtained in the step (2) through an injection molding mach...

Embodiment 2

[0036] 1. 90 parts of polyamide is polyamide 416, the alloy component is 5 parts of polyamide-imide, the toughening agent is 3 parts of amino-butadiene rubber, the wear-resistant additive is 3 parts of solid glass beads, and other additives Add 2 parts of antioxidant (1 part of antioxidant 1098 and 1 part of silicone powder) into the mixer, and pre-mix for 1-3 minutes to obtain a mixture.

[0037] 2. Add the mixture obtained in the above step (1) into the twin-screw extruder through the hopper, and accurately weigh 10 parts of wollastonite as the reinforcing agent through a weight loss scale and introduce it into the extruder through a side feeder. Plasticizing, mixing, extruding, drawing, air-drying, and granulating to obtain a polyamide composite material that can be used for parachute fixed disks; wherein, the temperature of the extruder is set at the first zone to the head: 250-330°C.

[0038] 3. Pass the mixture obtained in the step (2) through an injection molding machin...

Embodiment 3

[0041] 1. 80 parts of polyamide is polyamide 616, the alloy component is 15 parts of polyetherimide, the toughening agent is 7 parts of polycarbonate elastomer, the wear-resistant additive is 2 parts of sodium potassium aluminum silicate, and other Add 1 part of auxiliary agent (0.5 part of antioxidant 168 and 0.5 part of stearic acid amide) into the mixer, and pre-mix for 1-3 minutes to obtain a mixture.

[0042] 2. Add the mixture obtained in the above step (1) into the twin-screw extruder through the hopper, and accurately weigh 2 parts of carbon nanotubes as the reinforcing agent through a weight loss scale and introduce it into the extruder through a side feeder. Plasticizing, mixing, extruding, drawing, air-drying, and granulating to obtain a polyamide composite material that can be used for parachute fixed disks; wherein, the temperature of the extruder is set at the first zone to the head: 250-330°C.

[0043] 3. Pass the mixture obtained in the step (2) through an inje...

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Abstract

The invention relates to a fixing disc material and a preparation method thereof, particularly to a parachute fixing disc material and a preparation method thereof, wherein the material comprises, byweight, 70-90 parts of polyamide, 5-25 parts of an alloy component, 3-12 parts of a toughening agent, 2-10 parts of a reinforcing agent, 1-3 parts of a wear-resistant auxiliary agent and 0.5-2 parts of other auxiliary agents. According to the invention, the parachute fixing disc material has characteristics of light weight, high strength, high dimensional stability, excellent high-temperature resistance, excellent low-temperature resistance, high surface hardness and the like, and meets the long-term normal use of parachute fixing discs in complex environments such as heavy load, high-speed drop, high temperature, low temperature and the like.

Description

technical field [0001] The invention relates to a parachute fixing disc material and a preparation method thereof, belonging to the technical field of materials. Background technique [0002] At present, during the use of the plastic parachute fixing plate, the following problems are faced: 1) When the fast or heavy load falls, it is prone to deformation, poor dimensional stability, and has certain safety hazards; 2) The friction resistance of the fixing plate is unqualified; 3) In high In severe and complex environments such as low temperature, the fixed plate is easily deformed or cracked. For example, the test at 125°C and -50°C for a long time is unqualified. Therefore, in most cases, metal materials are still mainly used. So far, the above problems have not been resolved. Contents of the invention [0003] The invention has the characteristics of light weight, high strength, high dimensional stability, excellent high and low temperature resistance, high surface hard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L79/08C08L23/22C08L69/00C08L81/06C08L83/08C08K7/28C08K7/04C08K3/34C08K3/04
CPCC08K2201/011C08L77/06C08L2205/025C08L2205/03C08L2205/035C08L23/22C08K7/28C08K7/04C08L79/08C08K3/34C08L69/00C08K3/041C08L81/06C08L83/08C08K3/042
Inventor 王滨刘曙阳蒋顶军
Owner NANJING JULONG SCI&TECH CO LTD
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