Vulcanizing activator and preparation method thereof

A technology of vulcanization activator and zinc oxide, applied in the field of vulcanization activator, can solve the problems of difficult to maintain stable product performance, cumbersome preparation process, limited zinc reduction ability, etc., and achieves the effects of low price, simple synthesis process and reduction of specific gravity

Active Publication Date: 2019-02-15
INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) Zinc soap compound or zinc glycerol, such as DYMALINK709 (zinc monomethacrylate) of SARTOMER company, ZEH (zinc α-ethylhexanoate) of struktol company and zinc glycerol prepared by CN105906473A, etc., their disadvantage is that the The ability of zinc is limited, and it cannot replace zinc oxide with equal mass fraction
[0004] (2) Carrier-loaded zinc technology, where zinc is adsorbed on clay or metal-organic framework carriers, such as the methods described in CN108456331A, CN102382489A, and WO2004052981A, can reduce the zinc content, but the preparation process is cumbersome, the cost is high, and a large amount of waste water is generated; in addition If clay is used as the carrier, the adsorption amount of zinc is also affected by the cation exchange capacity (CEC) of the clay, and the product performance cannot be guaranteed to be stable.

Method used

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  • Vulcanizing activator and preparation method thereof
  • Vulcanizing activator and preparation method thereof
  • Vulcanizing activator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 295mmol (24g) of zinc oxide, 1.5g of benzoic acid and 100g of methylcyclohexane into a 250mL three-necked flask equipped with a stirrer, thermometer, reflux condenser and water separator, stir for 30min and then add 250mmol (23g) of glycerin, Heat up to 102°C with stirring, reflux for 240 minutes, cool, filter with suction, and dry to obtain 41.4 g of white powder with sulfuration activity and zinc content of 46.1%. The infrared spectrum and the scanning electron micrograph of the vulcanization activator of the present embodiment are shown in figure 1 and figure 2 shown.

Embodiment 2

[0020] Add 295mmol (24g) of zinc oxide, 1.5g of benzoic acid and 100g of D30 solvent oil into a 250mL three-necked flask equipped with a stirrer, thermometer, reflux condenser and water separator, stir for 30min, then add 250mmol (23g) of glycerin, and stir Raise the temperature to 130~134°C, reflux for 150min, cool, filter with suction, and dry to obtain 42.1g of white powder with sulfuration activity and zinc content of 45.6%.

[0021] The comparison of embodiment 1, comparative example (CN105906473A embodiment 1) and the X-ray pattern collection of 99.7% indirect method zinc oxide sees image 3 shown. It can be seen from the spectrum that the lattice regularity of the prepared vulcanization activator is not as good as zinc oxide and zinc glycerol, and the positions of the diffraction peaks are different from those of zinc oxide and zinc glycerol, and it is not the superposition of the two diffraction peaks. It can be seen that A new type of structure.

[0022] The zinc ox...

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Abstract

The invention relates to a vulcanizing activator and a preparation method thereof. The vulcanizing activator is prepared by the following steps: putting zinc oxide, benzoic acid and an alkane solventof which the boiling point is 100-150 DEG C into a reaction container in a mass ratio of 1:(0.05-0.1):(3-6), stirring for 30 minutes, adding glycerinum in a mole ratio to the zinc oxide of 1:(1.15-1.2), heating to 100-150 DEG C under stirring, enabling the components to react for 120-180 minutes, cooling, carrying out suction filtration, and drying a filter cake, thereby obtaining the vulcanizingactivator, wherein the content of zinc in the vulcanizing activator is 45-47%. The vulcanizing activator provided by the invention is capable of replacing zinc oxide in an equal mass fraction and hasa remarkable zinc reduction effect. The vulcanizing activator is simple in preparation method, convenient to operate and gentle in reaction condition.

Description

technical field [0001] The invention relates to a vulcanization active agent in a rubber vulcanization process, in particular to a preparation method of the vulcanization active agent. Background technique [0002] As a major branch of the world industry, the rubber industry plays a very important role in the economy and society. The rubber vulcanization activator refers to the ability to increase the activity of the accelerator after adding the rubber material, reduce the amount of the accelerator, shorten the vulcanization time, and achieve an increase. A type of accelerator for crosslinking. Zinc oxide is used as a rubber vulcanization activator, and the dosage is about 2.5-5phr. With the increasing awareness of the world's low-carbon economy and emission reduction, the problem of zinc pollution in the rubber industry has attracted more and more attention. The high zinc content, high density, and high heavy metal ion content of zinc oxide have continuously affected rubbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/053C08K3/22C08K5/098
CPCC08K3/22C08K5/053C08K5/098C08K2003/2296
Inventor 孔振兴李桂英戴子林
Owner INST OF RESOURCES UTILIZATION & RARE EARTH DEV GUANGDONG ACAD OF SCI
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