Method for preparing recycled regenerated plastic for 3D printing

A recycled plastic and 3D printing technology, which is applied in the field of recycling recycled plastic and its preparation, can solve the problems of reduced impact strength and achieve the effects of improving impact strength, widening the range, and enriching the pore structure

Inactive Publication Date: 2020-01-17
泉州龙晟轻工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the deficiencies in the prior art, the present invention, on the one hand, has to overcome the problems of reduced performance of recycled plastics such as toughness, impact strength, and tensile strength at break, and provide a product with good compatibility, impact strength and tensile strength at break. High recovery of recycled plastics, on the other hand, to overcome the thermal shrinkage of recycled plastics in the 3D printing molding process, a preparation method of recycled plastics for 3D printing is provided, so that the shape of the printed product is stable , high molding rate

Method used

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  • Method for preparing recycled regenerated plastic for 3D printing

Examples

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Effect test

Embodiment 1

[0046] The recycled plastic used for 3D printing in this embodiment consists of 60 recycled recycled plastics, 5 parts of glass fiber, 3 parts of molybdenum disulfide, 3 parts of maleic anhydride grafted ethylene-octene copolymer, 2 parts of zinc stearate, 3 parts of biochar, 1 part of styrene-maleic anhydride copolymer, 0.5 part of chain extender, 0.5 part of modified ethylene bis fatty acid amide, 0.1 part of azodicarbonamide, 1 part of antioxidant, 1 part of stabilizer agent and UV absorber mixture. Among them, recycled recycled plastics are composed of ABS, polypropylene and PET. The components in parts by weight of the chain extender are: 5-12 parts of pyromellitic anhydride, 6-15 parts of dicumyl peroxide, 7-18 parts of acrylonitrile-butadiene-styrene copolymer grafted oxazoline share.

[0047] The biochar specific surface area of ​​the present embodiment is 300-500m 2 .

[0048] The method for recycling recycled plastics used in this embodiment for 3D printing inclu...

Embodiment 2

[0058] The recycled plastic used for 3D printing in this embodiment consists of 70 parts of recycled plastic, 20 parts of glass fiber, 10 parts of molybdenum disulfide, 10 parts of acrylic acid grafted ethylene-octene copolymer, 3 parts of calcium stearate, 1 -15 parts of biochar, 5 parts of maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer, 2 parts of chain extender, 1 part of pentaerythritol hard fatty acid, 5 parts of azodicarbonamide, 30 parts of EVA (new Material), containing VA content of 40%, and 2 parts of antioxidant, 3 parts of stabilizer and nucleating agent mixture. in:

[0059] The biochar pore diameter of the present embodiment is 50-500nm, specific surface area is 900-1200m 2 . Recycled recycled plastic consists of ABS, polypropylene and PET.

[0060] Then, according to the preparation method of Example 1, recycled plastics for 3D printing were prepared.

Embodiment 3

[0062] The recycled plastic used for 3D printing in this embodiment consists of 65 parts of recycled plastic, 10 parts of glass fiber, 8 parts of molybdenum disulfide, 6 parts of maleic anhydride grafted polypropylene, 3 parts of zinc stearate, and 10 parts of biological Carbon, 3 parts of glycidyl methacrylate grafted ABS, 1 part of chain extender, 1 part of pentaerythritol stearic acid, 2 parts of azodicarbonamide, 10 parts of EVA (recycled material), the content of VA is 35% , 2 parts of antioxidants, 5 parts of stabilizers, nucleating agents, compatibilizers by mass parts 25%: 25%: 50% mixed mixture.

[0063] The biochar pore diameter of this embodiment is 150-300nm, specific surface area is 1100-1300m 2 . Recycled recycled plastic consists of ABS, polypropylene and PET.

[0064] Then, according to the preparation method of Example 1, recycled plastics for 3D printing were prepared.

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Abstract

The invention discloses a method for preparing a recycled regenerated plastic for printing. The recycled and regenerated plastic for 3D printing, which is disclosed by the invention, comprises 60-70 parts of a recycled plastic, 5-20 parts of glass fibers, 3-10 parts of graphenoid, 1-10 parts of a toughening agent, 2-3 parts of a dispersant, 1-15 parts of biochar, 1-5 parts of a compatibilizer, 0.1-2 parts of a chain extender, 0.5-1 part of a lubricant, 0.1-5 parts of a foaming agent and 1-8 parts of other additives. In addition, recycled and regenerated plastic may also comprise 10-60 parts ofEVA (ethylene vinyl acetate), and the content of VA (vinyl acetate) of EVA is 20-55%. The graphenoid is one of silicene, germanene and molybdenum disulfide surface activity treatment. The chain extender is one or more of pyromellitic dianhydride, dicumyl peroxide and an acrylonitrile-butadiene-styrene copolymer. The recycled and regenerated plastic is one or more of ABS (acrylonitrile butadiene styrene), polypropylene and PET (polyethylene terephthalate).

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a recycled plastic used for 3D printing and a preparation method thereof. [0002] technical background [0003] Polypropylene (PP) is a semi-crystalline thermoplastic resin, usually a translucent colorless solid, odorless and non-toxic. Due to its good mechanical properties, good thermal stability, excellent molding performance and relatively low price, it is widely used in the fields of automobiles, home appliances, and electronics. However, unmodified PP has disadvantages such as low tensile strength, poor impact resistance, and flammability, which limit its further application. [0004] In order to solve this problem, the industry usually adopts the method of blending polypropylene with other types of resins and additives to improve the performance of the material. Glass fiber reinforced composite material is a composite material made of polym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L23/12C08L67/02C08L51/06C08K13/06C08K9/06C08K9/04C08K7/14C08K3/30C08K5/098C08K5/20C08K7/24C08J9/10
CPCC08J9/103C08J2203/04C08J2323/12C08J2355/02C08J2367/02C08J2423/12C08J2455/02C08J2467/02C08K5/098C08K5/20C08K7/14C08K7/24C08K9/04C08K9/06C08K13/06C08K2003/3009
Inventor 黄宝辉
Owner 泉州龙晟轻工有限公司
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