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Tire rubber powder modified recycled plastic and preparation method thereof

A technology of tire rubber powder and recycled plastics, which is applied in the field of composite materials, can solve the problems of zero-pollution recycling of waste tire rubber, and achieve the effects of improving resource utilization, reducing production costs, and high economic benefits

Active Publication Date: 2013-07-03
荆门格林循环电子废弃物处置有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a recycled plastic obtained by modifying waste plastics by using waste tire rubber powder and its preparation method in order to solve the problems of zero-pollution recycling of waste tire rubber and waste plastics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Raw material components by weight

[0028] 58 parts of high-density polyethylene (HDPE), 20 parts of waste tire rubber powder, 5 parts of PE grafted maleic anhydride, 12.5 parts of ammonium polyphosphate, 2.7 parts of zinc stearate, 1.8 parts of antioxidant 1010.

[0029] Add waste tire rubber powder, HDPE, PE grafted maleic anhydride, ammonium polyphosphate, zinc stearate, antioxidant 1010, etc. The reaction extrusion is made into pellets, the melting temperature of the screw is 190° C., and the rotation speed is 180 rpm. After the extruded material is cooled, it is pelletized by a pelletizer to obtain pellets.

[0030] The obtained pellets were put into an extruder for extrusion molding, and a thermoplastic elastomer with excellent performance was obtained, with a bending strength of 25.5 MPa and a notched impact strength of 197 J / m.

Embodiment 2

[0032] Raw material components by weight

[0033] 70 parts of polyvinyl chloride (PVC), 18 parts of waste tire rubber powder, 5 parts of ammonium polyphosphate, 3 parts of zinc stearate, 2.5 parts of antioxidant 1010 and 1.5 parts of antioxidant 264.

[0034] Add waste tire rubber powder, PVC, ammonium polyphosphate, zinc stearate, antioxidant 1010 and antioxidant 264 to the high-speed mixer until they are evenly mixed, and then the mixed materials are reacted and extruded in a twin-screw extruder. Pellets are produced, the melting temperature of the screw is 175°C, and the rotation speed is 200 rpm. After the extruded material is cooled, it is pelletized by a pelletizer to obtain pellets.

[0035] The obtained pellets are put into an extruder for extrusion molding to obtain a recycled plastic with excellent performance, the bending strength reaches 50MPa, and the notched impact strength reaches 316J / m.

Embodiment 3

[0037] Raw material components by weight

[0038] 58 parts of polypropylene (PP), 21 parts of waste tire rubber powder, 4 parts of PP grafted maleic anhydride, 12 parts of ammonium polyphosphate, 2 parts of zinc stearate, 1.5 parts of antioxidant 1010 and 1.5 parts of antioxidant 168 .

[0039] Add waste tire rubber powder, PP, PP grafted maleic anhydride, ammonium polyphosphate, zinc stearate, antioxidant 1010 and antioxidant 168, etc. Reactive extrusion in a screw extruder is used to produce pellets. The melting temperature of the screw is 230° C. and the rotation speed is 160 rpm. After the extruded material is cooled, it is pelletized by a pelletizer to obtain pellets.

[0040] Put the obtained pellets into an extruder for extrusion molding, and obtain a recycled plastic with excellent performance, with a bending strength of 38MPa and a notched impact strength of 398J / m.

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Abstract

The invention relates to composite materials, in particular to a tire rubber powder modified recycled plastic and a preparation method thereof. The invention aims to solve the existing zero pollution reclamation difficulty and other problems of waste tire rubber, waste plastics, etc. The tire rubber powder modified recycled plastic provided in the invention is prepared from the following raw materials by mass: 20%-70% of waste plastics, 10%-40% of tire rubber powder, 5%-26% of a flame retardant, 1%-10% of a compatibilizer, 0.1%-3% of a lubricant, 0.5%-5% of a plasticizer, and 0.05%-4% of an antioxidant. In the invention, by modifying tire rubber powder to prepare the recycled plastic, the resource utilization rate of waste tire rubber powder is enhanced, a new application technology of rubber powder is developed, the application scope of rubber powder is expanded, and at the same time, the prepared recycled plastic still has good mechanical properties, and the production cost of the recycled plastic is greatly reduced, so that the application fields of recycled plastics can be expected to be further expanded.

Description

technical field [0001] The invention relates to composite materials, in particular to a recycled plastic modified by tire rubber powder and a preparation method thereof. Background technique [0002] Recycled plastic is a new type of environmentally friendly composite material. It uses various waste plastics to compound and regenerate, adds special additives, and is extruded to produce a recycled composite material that not only has plastic properties but also meets environmental protection requirements. [0003] In recent years, the recovery and utilization of waste tire rubber has become an urgent issue. The accumulation of a large amount of waste tire rubber not only causes a waste of resources, but also provides a place for the breeding of mice and mosquitoes. Accumulated waste tire rubber can easily cause fires, and incomplete combustion will release hydrocarbons and toxic gases, and the flames are difficult to extinguish. In recent years, waste tire rubber has been r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L27/06C08L23/12C08L25/06C08L55/02C08L69/00C08L21/00B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 程青民黄旭江王文平
Owner 荆门格林循环电子废弃物处置有限公司
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