Recycled polyester material and preparation method thereof

A technology of recycled polyester and polyester, which is applied in the field of recycled polyester materials and its preparation, can solve problems such as the shedding of polymer chain thermal degradation groups, affecting the recycling of waste polyester, and the poor performance of recycled polyester, so as to promote Dispersion, guaranteed anti-aging effect, high tensile strength effect
CN111978686AActive Publication Date: 2020-11-24GUANGZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU UNIVERSITY
Publication Date
2020-11-24

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Abstract

The invention discloses a recycled polyester material and a preparation method thereof. The recycled polyester material is composed of waste polyester, an inorganic filler, glass fiber, a chain extender, a deodorant, a dispersant, an antioxidant, an ultraviolet absorber and a heat stabilizer. The preparation method of the recycled polyester material includes the following steps: 1) preparing wastepolyester particles; 2) mixing the waste polyester particles, the inorganic filler, the glass fiber, the chain extender, the deodorant and the dispersant uniformly, and carrying out extrusion granulation to obtain the recycled material; and 3) mixing the recycled material, the antioxidant, the ultraviolet absorber and the heat stabilizer uniformly, and then performing extrusion granulation to obtain the recycled polyester material. The recycled polyester material has high tensile strength, high bending strength, high elongation at break, good aging resistance and good workability, the recycling preparation process is simple, and the recycled polyester material can be used as an injection molding raw material of helmets, household appliance shells, building boards and toys without additionof new resin.
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Description

technical field

[0001] The invention relates to the technical field of recycled materials, in particular to a recycled polyester material and a preparation method thereof. Background technique

[0002] Plastic has the advantages of light weight, stable chemical properties, easy processing, and low cost, and has been widely used in many fields. However, when plastic is discarded, it becomes a solid waste that is difficult to degrade. At present, the proportion of plastic in municipal solid waste has reached 15% to 20%, and a considerable part of it is polyester products, such as polyester fiber, polyester film, polyester plastic products, etc. The traditional treatment methods of waste polyester products are generally incineration or partial recycling, and the recycling rate is relatively low. New way out.

[0003] Waste polyester products are susceptible to aging due to external force, heat, light, oxygen and other factors during long-term use or disposal. Polyester will ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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