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

Self-lubricating high-strength nylon plate preparation method

A self-lubricating, high-strength technology, applied in the field of self-lubricating high-strength nylon sheet preparation, can solve problems such as poor heat resistance, increased factory production costs, low mechanical strength, low hardness, etc., achieve smooth and straight interface, and reduce frictional resistance Effect

Pending Publication Date: 2019-10-22
邱朝霞
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is that the mechanical strength and hardness of the current nylon sheet are lower than that of the nylon material, and it is difficult to meet the material properties of large workpieces, and most of the nylon sheet materials have poor friction resistance and poor heat resistance. The cast nylon is applied to mechanical parts such as gears, bearings, star wheels, etc., and the short service life increases the production cost of the factory. A preparation method for self-lubricating high-strength nylon sheets is provided.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The catalyst is: sodium hydroxide

[0031] The activator is: toluene diisocyanate

[0032] Preparation of self-lubricating capsules:

[0033] Add 20g of urea and 70mL of formaldehyde solution with a mass fraction of 35% into the Erlenmeyer flask, stir until the urea is completely dissolved, then use triethanolamine to adjust the pH of the reaction system in the Erlenmeyer flask to 8, put the Erlenmeyer flask into a water bath, Heating to 70°C, keeping it warm for 40 minutes to obtain a viscous transparent liquid, after cooling to room temperature, adjusting the pH to 6.8 with 10% hydrochloric acid to obtain a urea-formaldehyde prepolymer for later use;

[0034] Mix the fluorocarbon resin masterbatch and the E-51 type epoxy resin masterbatch at a mass ratio of 3:2 to obtain an oil-soluble capsule core, and add 100mL of dodecylbenzenesulfonate with a mass fraction of 3% to the four-necked flask Sodium acid solution, 40g oil-soluble capsule core and 0.5mL n-butanol, star...

Embodiment 2

[0041] Catalyst: Potassium Hydroxide

[0042] The activator is: hexamethylene diisocyanate

[0043] Preparation of self-lubricating capsules:

[0044] Add 25g of urea and 72mL of formaldehyde solution with a mass fraction of 35% into the Erlenmeyer flask, stir until the urea is completely dissolved, then use triethanolamine to adjust the pH of the reaction system in the Erlenmeyer flask to 8, put the Erlenmeyer flask into a water bath, Heating to 75°C, keeping it warm for 45 minutes to obtain a viscous transparent liquid, after cooling to room temperature, adjusting the pH to 6.9 with 10% hydrochloric acid to obtain a urea-formaldehyde prepolymer, which is ready for use;

[0045] Mix the fluorocarbon resin masterbatch and the E-51 epoxy resin masterbatch at a mass ratio of 3:2 to obtain an oil-soluble capsule core, and add 110mL of dodecylbenzenesulfonate with a mass fraction of 3% to the four-necked flask Sodium acid solution, 42g oil-soluble capsule core and 0.7mL n-butano...

Embodiment 3

[0052] The catalyst is: sodium carbonate

[0053] The activator is: caprolactam-terminated diisocyanate

[0054] Preparation of self-lubricating capsules:

[0055] Add 30g of urea and 75mL of formaldehyde solution with a mass fraction of 35% into the Erlenmeyer flask, stir until the urea is completely dissolved, then use triethanolamine to adjust the pH of the reaction system in the Erlenmeyer flask to 9, put the Erlenmeyer flask into a water bath, Heating to 80°C, keeping it warm for 50 minutes to obtain a viscous transparent liquid, after cooling to room temperature, adjusting the pH to 7.0 with 10% hydrochloric acid to obtain a urea-formaldehyde prepolymer for later use;

[0056] Mix the fluorocarbon resin masterbatch and the E-51 type epoxy resin masterbatch at a mass ratio of 3:2 to obtain an oil-soluble capsule core, and add 120mL of dodecylbenzenesulfonate with a mass fraction of 3% to the four-necked flask Sodium acid solution, 45g oil-soluble capsule core and 1.0mL ...

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

No PUM Login to View More

Abstract

The invention discloses a self-lubricating high-strength nylon plate preparation method, and belongs to the technical field of building plate preparation. According to the present invention, a self-made rubber compound and rock wool fiber are used as a skeleton filler, the rubber compound forms a flexible protection layer on the surface of nylon after being solidified, and the self-lubricating capsules are uniformly distributed in the gaps of the rock wool fiber, such that the self-lubricating effect is achieved, and the frictional resistance is reduced; the strong binding force is generated between the prepared rubber compound alumina sol and the rock wool fiber to form a strong physical bonding surface or a coherent interface, and when a nylon plate bears a load, the load is smoothly transmitted to the rock wool fiber, such that the alumina as the protection layer of the rock wool fiber can avoid the fiber performance damage during the applying of the load on the rock wool fiber so as to improve the toughness and the mechanical strength of the nylon plate; and the interfacial bonding degree between the self-lubricating capsule and the nylon filler is improved through the compatibility between the polytetrafluoroethylene in the rubber compound and the fluorocarbon resin masterbatch in the self-lubricating capsule, such that the nylon plate has characteristics of high heat resistance, high mechanical property and friction resistance.

Description

technical field [0001] The invention discloses a method for preparing a self-lubricating high-strength nylon sheet, which belongs to the technical field of building sheet preparation. Background technique [0002] Nylon, the Chinese name of polyamide, referred to as PA, is a general term for thermoplastic resins containing repeated amide groups—[NHCO]—on the main molecular chain. Its name depends on the specific number of carbon atoms in the synthetic monomer. Nylon series are the most important engineering plastics. This product is widely used, covering almost every field, and is the most widely used variety among the five major engineering plastics. Widely used in chemical machinery, anti-corrosion equipment gear and spare parts. Wear-resistant parts, transmission structural parts, household appliances parts, automobile manufacturing parts, screw preventive mechanical parts, chemical machinery parts, chemical equipment, etc. Nylon sheets are divided into extrusion and ...

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): C08L77/02C08L7/00C08L29/10C08L27/18C08L63/00C08L27/12C08K13/04C08K7/10C08K5/09C08K3/22B29D7/01
CPCC08L77/02B29D7/01C08L2205/035C08L2201/08C08K2003/2227C08K2003/222C08L7/00C08L29/10C08L27/18C08L63/00C08L27/12C08K13/04C08K7/10C08K5/09C08K3/22
Inventor 邱朝霞
Owner 邱朝霞