Low mooney rubber plastic body and double screw plasticizing production method thereof

A production method and plastomer technology, applied in the field of waste resource development and utilization, can solve the problems of limited use performance and field of use, difficult to control the quality of reclaimed rubber, short storage time, etc., to save production space, improve market prospects, and make low cost effect

Inactive Publication Date: 2016-01-20
李晓武 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the reclaimed rubber produced by this process loses a lot of the properties of the previous rubber while gaining new performance, and the quality of this reclaimed rubber is difficult to control, the storage time is short, and the performance and application fields are different. subject to certain restrictions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) 8-10 mesh whole tire powder, 0.5% pentachlorothiophenol, 1% stearic acid, 1% naphthenic oil, 4% light calcium carbonate are mixed and crushed to 30 mesh to obtain pretreated rubber powder;

[0023] (2) Plasticize the pretreated rubber powder, 15% tall oil and 0.5% activator 480 on a twin-screw plasticizer to obtain material A; wherein, the plasticizing temperature is 235° C., and the rubber powder transport speed is 200 kg / h;

[0024] (3) Mix material A and 0.5% tall oil in a banbury mixer for 3 minutes, then open mill through an open mill (the speed ratio of the open mill is 1:1.1), and extrude from an extruder to obtain The low Mooney rubber plastomer.

Embodiment 2

[0026] (1) 8-10 mesh whole tire powder, 0.5% pentachlorothiophenol, 1% stearic acid, 1% naphthenic oil, 4% light calcium carbonate are mixed and crushed to 30 mesh to obtain pretreated rubber powder;

[0027] (2) Plasticize the pretreated rubber powder, 15% tall oil and 0.5% activator 480 on a twin-screw plasticizer to obtain material A; wherein, the plasticizing temperature is 240°C, and the rubber powder transport speed is 200kg / h;

[0028] (3) Mix material A and 0.5% tall oil in a banbury mixer for 3 minutes, then open mill through an open mill (the speed ratio of the open mill is 1:1.1), and extrude from an extruder to obtain The low Mooney rubber plastomer.

Embodiment 3

[0030] (1) 8-10 mesh whole tire powder, 1% pentachlorothiophenol, 0.5% stearic acid, 1% naphthenic oil, 4% light calcium carbonate are mixed and crushed to 30 mesh to obtain pretreated rubber powder;

[0031] (2) Plasticize the pretreated rubber powder, 15% tall oil and 0.5% activator 480 on a twin-screw plasticizer to obtain material A; wherein, the plasticizing temperature is 250°C, and the rubber powder transport speed is 200kg / h;

[0032] (3) Mix material A and 0.5% tall oil in a banbury mixer for 3 minutes, then open mill through an open mill (the speed ratio of the open mill is 1:1.1), and extrude from an extruder to obtain The low Mooney rubber plastomer.

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Abstract

The invention provides a low mooney rubber plastic body and a double screw plasticizing production method thereof. Waste tire rubber, a peptizer, a softener, an activator and a lubricant are mixed and smashed to obtain rubber powder; the rubber powder, a water-soluble softener and an activator 480 are plasticized on a double screw plasticizing machine to obtain a material A; the material A and tall oil are subjected to open milling of an open mill and extruding of an extruding machine after internal mixing of an internal mixer, and the low mooney rubber plastic body is obtained. The rubber plastic body has low mooney, high strength, high elongation and low hardness performance. The technical formula and the process are simple, the manufacturing cost is low, the energy consumption is low, the efficiency is high, refining and plastication processes is reduced, the labor intensity is greatly reduced, and the production space is saved.

Description

technical field [0001] The invention belongs to the field of development and utilization of waste resources, and in particular relates to a low Mooney rubber plastomer and a twin-screw plasticizing production method thereof. Background technique [0002] At present, with the excessive utilization of energy and resources, my country is facing a new situation of energy and industrial transformation and upgrading, and green development has become an important way to achieve transformation and upgrading, and the same is true for the rubber industry. my country is the country with the largest annual consumption of rubber in the world, and it is also the country with the largest production and use of reclaimed rubber. The comprehensive utilization of waste rubber industry to create renewable resources can not only make up for the shortage of rubber resources in my country, but also undertake the important task of protecting the environment and preventing the pollution of rubber so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L91/00C08K5/09C08K3/26C08K5/36B29C47/92B29C48/92
Inventor 李晓武张进王明贤蒋建国李园园章士杰
Owner 李晓武
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