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Yellowing-resisting, whitening and brightening master batch, polyester recycled material and preparation method

A masterbatch and polyester technology, which is applied in the field of polyester regeneration, can solve the problems of yellowing, aging, and application restrictions of recycled polyester, and achieve the effect of enhancing tensile strength and solving the problem of easy agglomeration

Active Publication Date: 2018-06-29
DONGGUAN JISHUO IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As of 2011, the production capacity of recycled polyester has exceeded 7.5 million tons, most of which are made by physical blending modification. The modification direction mainly includes flame retardant modification and mechanical property modification. There are bad phenomena such as yellowing and aging, and its application is restricted
The existing technology lacks technical means for whitening recycled polyester

Method used

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  • Yellowing-resisting, whitening and brightening master batch, polyester recycled material and preparation method
  • Yellowing-resisting, whitening and brightening master batch, polyester recycled material and preparation method
  • Yellowing-resisting, whitening and brightening master batch, polyester recycled material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A masterbatch for reducing yellowing, whitening and brightening, comprising the following raw materials in parts by weight:

[0030]

[0031] The composite microsphere is a microsphere with a core-shell structure, the core of the core-shell structure microsphere is nano titanium dioxide, and the shell is polyacrylonitrile.

[0032] Wherein, the average particle diameter of the nano-titanium dioxide is 40nm.

[0033] Wherein, the preparation method of the composite microsphere comprises the following steps: (1) taking a certain amount of N,N-dimethylformamide to dissolve the polyacrylonitrile to form a polyacrylonitrile solution; (2) dissolving the nano Titanium dioxide is added to the polyacrylonitrile solution obtained in step (1), and ultrasonically dispersed to obtain a precursor solution; (3) the precursor solution obtained in step (2) is electrostatically sprayed to obtain the composite Microspheres.

[0034] Wherein, the particle diameter of the composite mic...

Embodiment 2

[0046] A masterbatch for reducing yellowing, whitening and brightening, comprising the following raw materials in parts by weight:

[0047]

[0048] The composite microsphere is a microsphere with a core-shell structure, the core of the core-shell structure microsphere is nano titanium dioxide, and the shell is polyacrylonitrile.

[0049] Wherein, the average particle diameter of the nano-titanium dioxide is 30nm.

[0050] Wherein, the preparation method of the composite microsphere comprises the following steps: (1) taking a certain amount of N,N-dimethylformamide to dissolve the polyacrylonitrile to form a polyacrylonitrile solution; (2) dissolving the nano Titanium dioxide is added to the polyacrylonitrile solution obtained in step (1), and ultrasonically dispersed to obtain a precursor solution; (3) the precursor solution obtained in step (2) is electrostatically sprayed to obtain the composite Microspheres.

[0051] Wherein, the particle diameter of the composite mic...

Embodiment 3

[0063] A masterbatch for reducing yellowing, whitening and brightening, comprising the following raw materials in parts by weight:

[0064]

[0065] The composite microsphere is a microsphere with a core-shell structure, the core of the core-shell structure microsphere is nano titanium dioxide, and the shell is polyacrylonitrile.

[0066] Wherein, the average particle diameter of the nano-titanium dioxide is 50nm.

[0067] Wherein, the preparation method of the composite microsphere comprises the following steps: (1) taking a certain amount of N,N-dimethylformamide to dissolve the polyacrylonitrile to form a polyacrylonitrile solution; (2) dissolving the nano Titanium dioxide is added to the polyacrylonitrile solution obtained in step (1), and ultrasonically dispersed to obtain a precursor solution; (3) the precursor solution obtained in step (2) is electrostatically sprayed to obtain the composite Microspheres.

[0068] Wherein, the particle diameter of the composite mic...

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Abstract

The invention relates to the technical field of polyester recycling and in particular relates to a yellowing-resisting, whitening and brightening master batch, a polyester recycled material and a preparation method. The yellowing-resisting, whitening and brightening master batch is prepared from the following raw materials in parts by weight: 40 to 60 parts of matrix resin, 12 to 20 parts of composite microspheres, 6 to 12 parts of brightening agent, 1 to 7 parts of antioxidant, 2 to 6 parts of light stabilizing agent and 3 to 7 parts of ultraviolet absorbent and the like. The yellowing-resisting, whitening and brightening master batch provided by the invention takes polyacrylonitrile which has better compatibility with polyester resin and has certain whiteness as a carrier of nano titanium dioxide and the problems that the nano titanium dioxide is easy to agglomerate and difficult to disperse and is not compatible with the matrix resin and the like are effectively solved; the nano titanium dioxide has a size effect so that the polyester recycled material has the advantages of high whiteness, high gloss and the like; furthermore, the polyacrylonitrile also can be used as reinforcing filler for reinforcing mechanical properties including tensile strength, impact resistance and the like of the master batch.

Description

technical field [0001] The invention relates to the technical field of polyester regeneration, in particular to a yellowing, whitening and brightening masterbatch, a recycled polyester material and a preparation method. Background technique [0002] Polyester is a polymer compound with a certain molecular weight obtained by condensation polymerization of terephthalic acid and ethylene glycol. Polyester is widely used due to its excellent properties such as high strength, high modulus, good shape retention, and high dimensional stability. In clothing, decoration, industry and agriculture and other fields. However, with the rapid development of the polyester industry, the disposal of waste polyester products has come one after another. The huge stock of waste polyester products in society has not only brought huge pressure to the ecological environment, but also caused a serious waste of petrochemical resources. Therefore, the regeneration and recycling of waste polyester pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/00C08L33/20C08K9/12C08K3/22C08J3/22
CPCC08J3/223C08J3/226C08J2367/00C08J2467/00C08K2003/2241C08K2201/011C08L67/00C08L67/02C08L2205/025C08L2205/03C08L2207/20C08L33/20C08K9/12C08K3/22
Inventor 王勇
Owner DONGGUAN JISHUO IND CO LTD
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