Method for preparing zinc oxide for sealing ring

A zinc oxide and sealing ring technology, applied in the direction of zinc oxide/zinc hydroxide, etc., can solve the problems of uneven texture, poor dispersion, and poor weather resistance of sealing rings, and achieve strong wear resistance, good lubricity, and improved Effect of Vulcanization Rate

Inactive Publication Date: 2019-01-04
江苏伊顿航天材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dispersion of this kind of nano-zinc oxide is poor. If it is used in the preparation of rubber sealing rings, it will cause the problems of uneven texture and poor weather resistance of the sealing rings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for preparing zinc oxide for sealing ring, comprising the following steps:

[0021] Step 1, weigh the following components by weight: 50 parts of ordinary zinc oxide, 10 parts of nano titanium dioxide, 1 part of chitosan, 2 parts of phthalate coupling agent, 5 parts of nano white carbon black, 5 parts of polyethylene 1 part of plasticizer;

[0022] Step 2, mixing polyethylene and a plasticizer, and plasticizing for 10 minutes to obtain mixture A;

[0023] Step 3, mixing ordinary zinc oxide, chitosan, nano-titanium dioxide, and nano-white carbon black into a muffle furnace for sintering for 1-2 hours, and then transferring to a ball mill to grind the mixture B;

[0024] Step 4, mix mixture B, mixture A, and phthalate coupling agent, put into a ball mill and stir at a speed of 120 rpm to obtain material A;

[0025] Step 5, transfer material A to a calciner for calcination to obtain the required zinc oxide.

[0026] Wherein, the temperature of the plasticizing ...

Embodiment 2

[0031] A method for preparing zinc oxide for sealing ring, comprising the following steps:

[0032] Step 1, weigh the following components by weight: 68 parts of ordinary zinc oxide, 15 parts of nano titanium dioxide, 3 parts of chitosan, 4 parts of phthalate coupling agent, 6 parts of nano white carbon black, 12 parts of polyethylene , 2 parts of plasticizer;

[0033] Step 2, mixing polyethylene and a plasticizer, and plasticizing for 12 minutes to obtain mixture A;

[0034] Step 3, mixing ordinary zinc oxide, chitosan, nano-titanium dioxide, and nano-white carbon black into a muffle furnace for sintering for 2 hours, then transferring to a ball mill to grind the mixture B;

[0035] Step 4, mix mixture B, mixture A, and phthalate coupling agent, put into a ball mill and stir at a speed of 150 rpm to obtain material A;

[0036] Step 5, transfer material A to a calciner for calcination to obtain the desired zinc oxide.

[0037] Wherein, the temperature of the plasticizing tr...

Embodiment 3

[0042] A method for preparing zinc oxide for sealing ring, comprising the following steps:

[0043] Step 1, take the following components by weight: 75 parts of ordinary zinc oxide, 18 parts of nano titanium dioxide, 4 parts of chitosan, 5 parts of phthalate coupling agent, 8 parts of nano white carbon black, 15 parts of polyethylene , 3 parts of plasticizer;

[0044] Step 2, mixing polyethylene and a plasticizer, and plasticizing for 10-15 minutes to obtain mixture A;

[0045] Step 3, mixing ordinary zinc oxide, chitosan, nano-titanium dioxide, and nano-white carbon black into a muffle furnace for sintering for 1-2 hours, and then transferring to a ball mill to grind the mixture B;

[0046] Step 4, mix mixture B, mixture A, and phthalate coupling agent, put into a ball mill and stir at a speed of 180 rpm to obtain material A;

[0047] Step 5, transfer material A to a calciner for calcination to obtain the desired zinc oxide.

[0048] Wherein, the temperature of the plastic...

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PUM

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Abstract

The invention discloses a method for preparing zinc oxide for a sealing ring. The method comprises the following steps: weighing the following components in parts by weight: mixing polyethylene and aplasticizer and performing plasticizing treatment for 10 to 15 minutes to obtain a mixture A; mixing the common zinc oxide, chitosan, nanometer titanium dioxide and nanometer white carbon black, throwing the mixture into a muffle furnace, sintering for 1 to 2 hours, transferring into a ball mill and grinding a mixture B; mixing the mixture B, the mixture A and a phthalic ester coupling agent, throwing the mixture into a ball mill,and stirring at the speed of 120 to 180 rpm to obtain a material A; and transferring the material A into a calcining furnace and calcining to obtain the needed zinc oxide. The method capable of improving the vulcanization activity of the common zinc oxide is simple to operate, the effect is obvious, and the vulcanization speed of natural rubber can be obviously improved and the use amount of the zinc oxide in a formula can be reduced under the condition of guaranteeing the crosslinking density of vulcanized rubber; in addition, the nanometer white carbon blackis added in the formula, and the obtained zinc oxide has high lubricating property and high wear resistance.

Description

technical field [0001] The invention belongs to the technical field of sealing ring preparation, and in particular relates to a method for preparing zinc oxide for sealing rings. Background technique [0002] As the most common vulcanization activator for natural rubber vulcanization, zinc oxide is widely used in the production of natural rubber products. Due to the complexity of the vulcanization process of natural rubber, it is still unclear how the accelerator and zinc oxide promote sulfur on natural rubber molecules. However, how zinc oxide, which is essential in the vulcanization system, plays a role in the vulcanization of natural rubber remains unclear. There are many researches on active zinc oxide, and the obtained active zinc oxide has many problems, and it is difficult to find active zinc oxide with excellent comprehensive performance to meet the needs of people's production and life. [0003] Application number 201610531155.7 discloses a preparation method of hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02C08K3/22
CPCC01G9/02C08K3/22C08K2003/2296
Inventor 郭伟刘爽
Owner 江苏伊顿航天材料股份有限公司
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