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Glass micro-bead filling modified mould nylon plate and preparation method thereof

A technology of glass microbeads and cast nylon, applied in the field of material science, can solve the problems of limiting the wide application of cast nylon products, low impact strength and compressive strength, poor wear resistance and self-lubrication, etc. Effects of good mechanical and physical properties, high impact and compressive strength, good self-lubricating properties and wear resistance

Inactive Publication Date: 2007-12-05
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, unmodified cast nylon has disadvantages such as low bending strength, impact strength and compressive strength, poor wear resistance and self-lubrication, high wear rate, and low dimensional stability. Limits the wide application of cast nylon products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) 20 g of hollow glass microspheres are surface-modified. During processing, the proportioning of glass microspheres: silane coupling agent: ethanol solvent (95%) is 100g: 1mL: 40mL, and the specified amount of glass microspheres is first added to the high-speed mixer, and then the modified The agent is slowly added into the mixer in 2 to 3 times, and mixed with the glass beads at high speed for more than 30 minutes, stop the machine and discharge, dry in a drying oven at 120°C for 1 hour, and set aside.

[0018] (2) Add 100g of caprolactam and modified hollow glass microspheres into the reactor, heat and melt, when the temperature reaches about 100°C, turn on the vacuum pump to reduce the pressure, the vacuum degree should reach about 1.01MPa, at 120-130°C Dehydration at lower temperature for 10-15 minutes, the solution is in a boiling state, turn off the vacuum pump, and stop vacuuming.

[0019] (3) Open the reactor cover, add 0.25g catalyst sodium methoxide, conti...

Embodiment 2

[0023] (1) 20 g of hollow glass microspheres are surface-modified. During processing, the proportioning of glass microspheres: silane coupling agent: ethanol solvent (95%) is 100g: 1mL: 40mL, and the specified amount of glass microspheres is first added to the high-speed mixer, and then the modified The agent is slowly added into the mixer in 2 to 3 times, and mixed with the glass beads at high speed for more than 30 minutes, stop the machine and discharge, dry in a drying oven at 120°C for 1 hour, and set aside.

[0024] (2) Add 100g of caprolactam and modified hollow glass microspheres into the reactor, heat and melt, when the temperature reaches about 100°C, turn on the vacuum pump to reduce the pressure, the vacuum degree should reach about 1.01MPa, at 120-130°C Dehydration at lower temperature for 10-15 minutes, the solution is in a boiling state, turn off the vacuum pump, and stop vacuuming.

[0025] (3) Open the reactor cover, add 0.2g catalyst sodium methoxide, contin...

Embodiment 3

[0029] (1) 20 g of hollow glass microspheres are surface-modified. During processing, the proportioning of glass microspheres: silane coupling agent: ethanol solvent (95%) is 100g: 1mL: 40mL, and the specified amount of glass microspheres is first added to the high-speed mixer, and then the modified The agent is slowly added into the mixer in 2 to 3 times, and mixed with the glass beads at high speed for more than 30 minutes, stop the machine and discharge, dry in a drying oven at 120°C for 1 hour, and set aside.

[0030] (2) Add 100g of caprolactam and modified hollow glass microspheres into the reactor, heat and melt, when the temperature reaches about 100°C, turn on the vacuum pump to reduce the pressure, the vacuum degree should reach about 1.01MPa, at 120-130°C Dehydration at lower temperature for 10-15 minutes, the solution is in a boiling state, turn off the vacuum pump, and stop vacuuming.

[0031] (3) Open the reactor cover, add 0.3g of catalyst sodium methoxide, con...

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Abstract

The present invention relates to glass bead stuffing modified cast nylon plate and its production process, and belongs to the field of material science. The enhanced cast nylon plate is produced with the material comprising caprolactam as base component, hollow glass bead as the enhancing component, stearate as the dispersant, main antioxidant, auxiliary antioxidant, stabilizer, sodium methoxide as the catalyst and toluene diisocyanate as the co-catalyst in certain weight proportion, and through a molding and sintering process. The enhanced cast nylon plate has high comprehensive mechanical performance and physical performance.

Description

technical field [0001] The invention relates to a modified cast nylon plate filled with hollow glass microspheres and a preparation method thereof, belonging to the field of material science. technical background [0002] Cast nylon is an engineering plastic with excellent performance. It has the characteristics of low polymerization temperature, simple process, high crystallinity, large molecular weight, excellent mechanical properties, shock absorption and noise reduction, oil resistance, and chemical corrosion resistance. It can be used in some occasions. Instead of copper, aluminum, steel and other metal materials. However, in practical applications, unmodified cast nylon has disadvantages such as low bending strength, impact strength and compressive strength, poor wear resistance and self-lubrication, high wear rate, and low dimensional stability. The wide application of cast nylon products is limited. [0003] Therefore, it is necessary to invent a modification metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K7/28C08J5/18C08G69/16B29C43/58
Inventor 刘玉梅孙丽宁苏建姜晓莱魏传峰潘洪达戴建国何凤江卢凤英顾雷
Owner JILIN UNIV
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