Preparation method of nano composite aluminum oxide for filling rubber

A technology for compounding alumina and filling rubber, applied in the field of inorganic chemical synthesis, can solve the problems of easy agglomeration of nano-alumina powder, decreased mechanical properties of rubber materials, easy agglomeration of nano-alumina, etc., and achieves improved finish, excellent function and performance, The effect of improving the aging resistance

Active Publication Date: 2017-05-10
河北观驰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: aiming at the problem that the nano-alumina powder used in traditional rubber filling is easy to agglomerate and difficult to disperse evenly in the organic matrix, resulting in a decrease in the mechanical properties of the rubber material, a method of adding aluminum in fly ash is provided. A method for preparing nanocomposite alumina for filling rubber by mixing elements with self-prepared polymers after dissolution and cal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] Weigh 300g fly ash, mix it with 600mL deionized water and transfer it into a ball mill tank, add zirconia ball milling beads according to the mass ratio of the balls to 10:1, the revolution speed is 200r / min, the rotation speed is 500r / min Under the conditions, alternate forward and reverse operation every 30 minutes, ball mill treatment for 4 hours, discharge, to obtain fly ash slurry; measure 400mL of the above-obtained fly ash slurry, pour it into a beaker containing 200mL deionized water, and then place the beaker Adjust the temperature to 45°C and the stirring speed to 300r / min in the digital speed measuring constant temperature magnetic stirrer. Under constant temperature stirring, add 4% hydrochloric acid dropwise until the fly ash slurry is no longer dissolved, filter and collect it. The filtrate, set aside; Weigh 45g of maleic anhydride, pour it into a three-necked flask containing 120mL of deionized water, add 30% sodium hydroxide solution drop...

Example Embodiment

[0020] Example 2

[0021] Weigh 400g fly ash, mix it with 700mL deionized water and transfer it to a ball mill tank, add zirconia ball milling beads according to the mass ratio of the balls to 12:1, the revolution speed is 260r / min, the rotation speed is 550r / min Under the conditions, alternate forward and reverse operation every 40 minutes, ball mill treatment for 5 hours, discharge, and obtain fly ash slurry; measure 450 mL of the above obtained fly ash slurry, pour it into a beaker containing 260 mL of deionized water, and then place the beaker Adjust the temperature to 48℃ and the stirring speed to 400r / min in a digital speed measuring constant temperature magnetic stirrer. Under constant temperature stirring, add 5% hydrochloric acid dropwise until the fly ash is no longer dissolved, filter and collect it. The filtrate, set aside; Weigh 48g maleic anhydride, pour it into a three-necked flask containing 140mL deionized water, add 32% sodium hydroxide solution dropwise, adjust...

Example Embodiment

[0023] Example 3

[0024] Weigh 500g fly ash, mix it with 800mL deionized water and transfer it to a ball mill tank, add zirconia ball milling beads according to the mass ratio of the balls to 15:1, the revolution speed is 300r / min, the rotation speed is 600r / min Under the conditions, it runs alternately in forward and reverse directions every 45 minutes, ball milling treatment for 6 hours, and the material is discharged to obtain fly ash slurry; measure 500 mL of the fly ash slurry obtained above, pour it into a beaker containing 300 mL deionized water, and place the beaker Adjust the temperature to 50℃ and the stirring speed to 500r / min in the digital speed measuring constant temperature magnetic stirrer. Under constant temperature stirring, add 6% hydrochloric acid dropwise until the fly ash slurry is no longer dissolved, filter and collect it. The filtrate, ready for use; Weigh 50g maleic anhydride, pour it into a three-necked flask containing 150mL deionized water, add 35% s...

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Abstract

The invention discloses a preparation method of nano composite aluminum oxide for filling rubber and belongs to the technical field of inorganic chemical synthesis. The method comprises the following steps: firstly ball milling flyash, dissolving aluminum oxide contained in the flyash by using diluted hydrochloric acid to prepare filtrate; then taking maleic anhydride as a raw material and taking sodium tungstate as a catalyst to prepare epoxysuccinic acid; then taking calcium hydroxide as an initiator, adding diethylamine and the epoxysuccinic acid to form a polymer, then dropwise adding the filtrate into the polymer, precipitating aluminum ions and dispersing the aluminum ions in a three-dimensional network structure of the polymer; and finally calcining to prepare the nano composite aluminum oxide for filling the rubber. Through the preparation method of the nano composite aluminum oxide for filling the rubber, the macromolecular polymer prepared under the alkaline condition is used for uniformly precipitating the aluminum ions in the three-dimensional network structure of the polymer; aggregation of the nano aluminum oxide and aluminum nitride in the calcining process is avoided; the dispersion stability of the nano aluminum oxide is improved; the compatibility of the nano aluminum oxide with rubber matrix materials is improved; the problems that conventional nano aluminum oxide for filling the rubber is easy to aggregate and low in dispersibility are effectively solved.

Description

technical field [0001] The invention discloses a preparation method of nano-composite alumina for filling rubber, and belongs to the technical field of inorganic chemical synthesis. Background technique [0002] Alumina products have low density, transparency, soft structure, good printing performance, and a series of excellent characteristics such as high hardness, high strength, heat resistance, and corrosion resistance. Nano-alumina has better physical and chemical properties than ordinary alumina. Nano-alumina is an ultrafine particle with a size of 1nm to 100nm, which has strong volume effect, quantum size effect, surface effect and macroscopic quantum tunneling effect. [0003] One of the widest applications of nano-alumina is as a filling material for rubber. Its addition can greatly improve its hardness and wear resistance. This kind of filled composite polymer material has become an important field of polymer material research. However, nano-alumina powder is easy ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08K3/22C08K3/28
CPCC08K3/22C08K3/28C08K2003/2227C08K2003/282C08K2201/011C08L2201/08C08L7/00
Inventor 张静马俊杰
Owner 河北观驰新材料科技有限公司
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