Polyolefin foaming material recycling method and device

A polyolefin foaming and material recycling technology, applied in mechanical material recycling, recycling technology, plastic recycling, etc., can solve the problems of inability to recycle recycled materials, waste accumulation, environmental pollution, economic and environmental pressure, etc., and achieve considerable Economic and social value, the effect of protecting the environment

Active Publication Date: 2017-05-03
SHANDONG TAISHAN SPORTS EQUIP CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the polyolefin foam material has been cross-linked, the leftovers generated during the production process and the deep processing of the product and the recycled material after the product is scrapped cannot be melted and granulated again for recycling like conventional polyolefin materials, resulting in waste accumulation and environmental pollution. Caused economic and environmental pressure on related companies and even the entire industry

Method used

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  • Polyolefin foaming material recycling method and device
  • Polyolefin foaming material recycling method and device
  • Polyolefin foaming material recycling method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for recycling polyolefin foamed materials, the method may further comprise the steps:

[0033] (1) The polyolefin foam material to be recycled is crushed, and the diameter of the sheet after crushing the polyolefin foam material ranges from 0.1cm to 15cm;

[0034] The diameter range in step (1) is an optimal solution, which is beneficial to the subsequent molding process. Of course, polyolefin foam materials can also be recycled if the diameter is smaller or larger than this range, but it is relatively difficult to combine molding.

[0035] (2) Put the pulverized polyolefin foam material into the mixer 1 for stirring, and spray the adhesive continuously during the stirring process to form the ready-to-use material 2, wherein the pulverized polyolefin foam material in the mixer 1 , The mass-to-number ratio of the adhesive is: 100:25;

[0036] In this embodiment, the preferred adhesive is ethylene-vinyl acetate copolymer resin micropowder, and the mixer 1 in ste...

Embodiment 2

[0047] This embodiment differs from Embodiment 1 in that:

[0048] In step (1), the diameter of the pulverized polyolefin foam sheet is between 0.1 cm and 5 cm;

[0049] In step (2), the adhesive and reinforcing fiber are continuously sprayed during the stirring process to form the ready-to-use material 2, wherein the quality of the pulverized polyolefin foam material, adhesive and reinforcing fiber in the mixer 1 is The ratio of copies is: 100:20:5;

[0050] As mentioned above, when the final product requires high tension properties, the requirement can be met by adding reinforcing fibers during the stirring process. The preferred adhesive is liquid adhesive, and the reinforcing fibers are chopped natural fibers.

[0051] In step (3), the heating temperature is 85°C.

[0052] In step (4), the material 2 to be formed is cooled to below 80°C.

[0053] The difference from Embodiment 1 is that the heated and pressurized container in this embodiment is preferably a compression ...

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Abstract

The invention belongs to the technical field of the recycling of foaming materials, and particularly relates to a polyolefin foaming material recycling method and device. The method comprises the following steps: crushing and stirring a polyolefin foaming material, and adding an adhesive and reinforcing fiber during the stirring process so as to form a molding standby material, and then putting the molding standby material into a heating-pressurizing vessel for molding so as to obtain a polyolefin crushed material foaming product which can be widely applied to the fields of heat preservation, buffering, packaging and the like. According to the method and the device provided by the invention, not only is the technical problem that a cross-linking polyolefin foaming material cannot be recycled solved, but also the production cost is low; and accordingly the method and the device serve as the critical technology about environmental protection, development of the circular economy and practice of the sustainable development concept in the field of polyolefin cross-linking foaming.

Description

technical field [0001] The invention belongs to the technical field of recycling foam materials, and in particular relates to a method and equipment for recycling polyolefin foam materials. Background technique [0002] Polyolefin foam is made by blending polyolefin with foaming agent and crosslinking agent, extruding sheet and then heating and foaming. Polyolefin foam has many unique properties, such as toughness, flexibility, friction resistance, excellent insulation, heat insulation and aging resistance. Polyolefin foam can partially replace polystyrene and polyurethane foam, which are widely used at present, and with its unique properties, it is widely used in automobiles, house heat insulation materials, sports mats, packaging materials for precision instruments and equipment, etc. Because the polyolefin foam material has been cross-linked, the leftovers generated during the production process and the deep processing of the product and the recycled material after the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B17/04B29B17/00B29K23/00
CPCB29B17/00B29B17/0042B29B17/0412B29K2023/00Y02W30/52Y02W30/62
Inventor 李胜业龙国荣卞笑男韩晶王伟武建平张勇奇王鹏飞
Owner SHANDONG TAISHAN SPORTS EQUIP CO
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