Recycled regenerated plastic

A technology for recycled plastics and waste plastics, applied in the field of recycled plastics, can solve the problems of strength, hardness, impact toughness, heat resistance and stability, easy aging and degradation, limiting the use range of recycled plastics, etc., to meet the odor standard, low VOC, the effect of good mechanical properties

Inactive Publication Date: 2020-06-02
上海壹诚塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is easy to age and degrade during use. As a material for automobile bumpers, its performance in terms of strength, hardness, impact toughness, heat resistance, and stability is greatly reduced. Some residual additives in recycled plastics and parts formed due to degradation are low. Molecular mixture, manifested in different degrees of irritating odor on the product, which greatly limits the scope of use of recycled plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] A second aspect of the present invention provides a method for preparing the reclaimed recycled plastic, the steps at least include:

[0040] (1) Cleaning and removing impurities: sorting, crushing, removing light impurities, metal removal, polishing, cleaning and drying for waste plastics;

[0041] (2) Pulverization: pulverize the dried waste plastics to obtain waste plastics powder and dry them again;

[0042] (3) Mixing, stirring, extruding and granulating: the dried waste plastic powder, functional materials, additives, and low-boiling point extractants are melt-extruded and granulated using a two-stage machine at a temperature of 100-130°C Drying and vacuum treatment at the same time, 1-10 hours, to get the first recycled plastic;

[0043] (4) Re-stirring and extrusion granulation: Stir the first recycled plastic again, use a two-stage machine for melt extrusion granulation, dry at a temperature of 120-150°C and vacuumize at the same time, 1-10 hours, That is the...

Embodiment 1

[0055] A kind of recycled plastic that is recycled and reused, the raw materials include at least 70 parts of waste plastics, 10 parts of functional materials, and 3 parts of auxiliary agents in parts by weight; the auxiliary agents include lubricants, plasticizers, dispersants, anti- The combination of oxygen agent, the weight ratio of lubricant, plasticizer, dispersant and antioxidant is 1:1.5:0.5:0.3.

[0056] Described lubricant is ethylene bis stearamide. The plasticizer is tri-n-butyl citrate. The dispersant is monoglyceride stearate. The antioxidant is tris(2,4-di-tert-butylphenyl) phosphite. The functional material is a combination of PP grafted maleic anhydride and porous polypropylene polymer. The weight ratio of the PP grafted with maleic anhydride to the porous polypropylene polymer is 1:1.5.

[0057] The raw material also includes a low-boiling point extractant; the added amount of the low-boiling point extractant is 5% of the mass of the porous polypropylene ...

Embodiment 2

[0066] A kind of recycled plastic that is recycled and reused, the raw materials include at least 70 parts of waste plastics, 10 parts of functional materials, and 3 parts of auxiliary agents in parts by weight; the auxiliary agents include lubricants, plasticizers, dispersants, anti- The combination of oxygen agent, the weight ratio of lubricant, plasticizer, dispersant and antioxidant is 1:1.5:0.5:0.3.

[0067] Described lubricant is ethylene bis stearamide. The plasticizer is tri-n-butyl citrate. The dispersant is monoglyceride stearate. The antioxidant is tris(2,4-di-tert-butylphenyl) phosphite. The functional material is a combination of PP grafted maleic anhydride and porous polypropylene polymer. The weight ratio of the PP grafted with maleic anhydride to the porous polypropylene polymer is 1:1.5.

[0068] The raw material also includes a low-boiling point extractant; the added amount of the low-boiling point extractant is 5% of the mass of the porous polypropylene ...

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Abstract

The invention relates to the technical field of recycled plastics, and provides a recycled regenerated plastic. The recycled regenerated plastic at least comprises, by weight, 50-80 parts of waste plastic, 5-15 parts of a functional material and 1-5 parts of an auxiliary agent; and the auxiliary agent is selected from at least one of a lubricant, a plasticizer, a dispersing agent and an antioxidant. The invention also provides a preparation method of the recycled regenerated plastic. The method can be suitable for preparing products in various fields, can also be suitable for the field of products with odor requirements, and is beneficial to recycling of waste plastics.

Description

technical field [0001] The invention relates to the technical field of recycled plastics, in particular to a method for preparing reclaimed and reused recycled plastics. Background technique [0002] Plastic is a kind of high-molecular-weight synthetic resin as an important component. Under certain conditions, it can be molded into a material with a certain shape and can keep its shape at room temperature. It has been widely used in industry, agriculture, national defense and national economy. each field. With the development of the petrochemical industry, the production and consumption of plastics in the world are gradually increasing, and there are more and more waste plastics. At present, countries all over the world pay attention to and support the recycling and recycling methods of waste plastics, and give them high praise. The recycling of waste plastics turns industrial waste into extremely valuable raw materials for industrial production and realizes the recycling o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K5/20C08K5/11C08K5/103C08K5/526C08L55/02
CPCC08L23/12C08L55/02C08L2205/025C08L2205/03C08L2207/20C08L51/06C08K5/20C08K5/11C08K5/103C08K5/526
Inventor 杨恽毅
Owner 上海壹诚塑胶有限公司
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