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A kind of rubber powder pretreatment agent and its preparation method and application

A technology of pretreatment agent and rubber powder is applied in the field of waste resource development and utilization to achieve the effects of improving the pulverization of rubber powder, reducing production costs, and improving product quality and stability.

Active Publication Date: 2017-11-07
李晓武 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a rubber powder pretreatment agent and a preparation method thereof, and applies the prepared rubber powder pretreatment agent to the production process of reclaimed rubber to achieve preliminary degradation of rubber powder, Reduce the difficulty of rubber powder in the desulfurization and plasticization process, and then solve the problems existing in the desulfurization and plasticization process of the existing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] S1: White carbon black is used as a carrier, pentachlorothiophenol and zinc oxide are added to the reactor and stirred and mixed at a stirring speed of 140r / min to obtain substance A; wherein, the mass percentage of pentachlorothiophenol to white carbon black is 60% , the mass percentage of zinc oxide accounting for white carbon black is 40%;

[0024] S2: Sodium cetyl sulfonate, naphthenic oil and stearic acid are added to the reaction kettle, heated and dissolved at 80°C, and reacted at 80°C for 30 minutes to obtain substance B, in which naphthenic oil accounts for cetane The mass percentage of sodium cetyl sulfonate is 60%, and the mass percentage that stearic acid accounts for sodium cetyl sulfonate is 40%;

[0025] S3: After fully mixing substance B and substance A according to the mass ratio of 1:1, the rubber powder pretreatment agent can be obtained.

Embodiment 2

[0027] S1: White carbon black is used as a carrier, pentachlorothiophenol and zinc oxide are added to the reaction kettle and stirred and mixed at a stirring speed of 160r / min to obtain substance A; wherein, the mass percentage of pentachlorothiophenol to white carbon black is 60% , the mass percentage of zinc oxide accounting for white carbon black is 40%;

[0028] S2: Sodium cetyl sulfonate, naphthenic oil and stearic acid are added to the reaction kettle, heated and dissolved at 80°C, and reacted at 80°C for 30 minutes to obtain substance B, in which naphthenic oil accounts for cetane The mass percentage of sodium cetyl sulfonate is 60%, and the mass percentage that stearic acid accounts for sodium cetyl sulfonate is 40%;

[0029] S3: After fully mixing substance B and substance A according to the mass ratio of 2:1, the rubber powder pretreatment agent can be obtained.

Embodiment 3

[0031] S1: Add white carbon black as a carrier, pentachlorothiophenol and zinc oxide into the reaction kettle and stir and mix at a stirring speed of 150r / min to obtain substance A; wherein, the mass percentage of pentachlorothiophenol to white carbon black is 60% , the mass percentage of zinc oxide accounting for white carbon black is 40%;

[0032] S2: Sodium cetyl sulfonate, naphthenic oil and stearic acid are added to the reaction kettle, heated and dissolved at 80°C, and reacted at 80°C for 30 minutes to obtain substance B, in which naphthenic oil accounts for cetane The mass percentage of sodium cetyl sulfonate is 60%, and the mass percentage that stearic acid accounts for sodium cetyl sulfonate is 40%;

[0033] S3: After fully mixing substance B and substance A according to the mass ratio of 1:2, the rubber powder pretreatment agent can be obtained.

[0034] The rubber powder pretreatment agent obtained in each embodiment is detected according to the national standard H...

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Abstract

The invention provides a rubber powder pretreatment agent and a preparation method and application thereof. The method includes the following steps of adding white carbon black, penta-chloro thiophenol and zinc oxide into a reaction still to be stirred and mixed to obtain a substance A, wherein the white carbon black serves as the carrier; adding hexadecylsulfonic acid sodium salt, naphthenic oil and stearic acid into the reaction still to be heated and molten at the temperature of 80 DEG C to obtain a substance B; adding the substance B to the substance A to be fully mixed to obtain the rubber powder pretreatment agent. The rubber powder pretreatment agent is added in the rubber powder production process in advance so that the energy consumption for rubber power smashing can be lowered and the effect of rubber powder smashing can be improved. The prepared rubber powder pretreatment agent is applied to the reclaimed rubber production process, and therefore energy consumption is lowered in the desulfuration and plasticizing process, the consumption of softener is lowered, production cost is reduced, and the quality and stability of the product are improved.

Description

technical field [0001] The invention belongs to the field of development and utilization of waste resources, and in particular relates to a rubber powder pretreatment agent and its preparation method and application. Background technique [0002] In response to the call for green production and sustainable development, the development and research of waste resources has become a major research hotspot at present. The comprehensive utilization of waste rubber industry is developing rapidly, and my country's annual production and use of reclaimed rubber ranks first in the world. At present, the methods of rubber regeneration and plasticization mainly include dynamic desulfurization tank dynamic desulfurization method, twin-screw conveying normal-pressure high-temperature plasticizing machine plasticization method and single-twin-screw extrusion plasticization method. However, these methods all have some shortcomings. The dynamic desulfurization method has uneven mixing of rub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L17/00C08L91/00C08K13/02C08K3/36C08K5/375C08K3/22C08K5/42C08K5/09C08J11/28C08J11/16
CPCY02W30/62
Inventor 李晓武蒋建国王明贤赵伟山李园园
Owner 李晓武
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