Polyethylene terephthalate composite material, product and preparation method

A technology of polyethylene terephthalate and ethylene glycol phthalate, which is applied in the field of material processing, can solve the problems of reducing the mechanical properties of PET materials, complicating the overall process flow, and complicating the process flow, so as to achieve easy The effect of large-scale industrial production, simple process and low cost

Inactive Publication Date: 2019-06-11
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first is alloying modification. It is often used to physically blend another polymer material with PET material to achieve toughening effect. It is often necessary to pretreat a certain component or add components such as compatibilizers to improve the inter-material properties. interaction, usually has certain requirements on the structure and performance of another polymer component, and the overall process is complex
[0004] The second is the rubber and elastomer toughening method, which also has certain requirements on the surface structure of rubber or elastomer to ensure that the interface properties of the two components can be improved after the toughening component is added, but the elastomer toughening agent The addition of PET will reduce the mechanical properties of the PET material itself, and the toughening components often need to be modified, which complicates the process of material preparation and increases the cost of preparation

Method used

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  • Polyethylene terephthalate composite material, product and preparation method
  • Polyethylene terephthalate composite material, product and preparation method
  • Polyethylene terephthalate composite material, product and preparation method

Examples

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preparation example Construction

[0060] see figure 1 , figure 1 The embodiment of the present invention also provides a schematic flow chart of a preparation method. The embodiment of the present invention is used to prepare the polyethylene terephthalate composite material described in the embodiment of the present invention, including:

[0061] S1, mixing polyethylene terephthalate and a thermoplastic elastomer containing glycidyl methacrylate to obtain a mixed raw material;

[0062] S2. Melt extruding the mixed raw material, and adding fibers during the melt extrusion process of the mixed raw material;

[0063] S3, cooling the melt-extruded mixed raw material mixed with the fibers to obtain the polyethylene terephthalate composite material.

[0064] Further, mixing polyethylene terephthalate and a thermoplastic elastomer containing glycidyl methacrylate as described in step S1 includes:

[0065] Polyethylene terephthalate, thermoplastic elastomer containing glycidyl methacrylate, antioxidant and process...

Embodiment 1

[0083] The components of the polyethylene terephthalate composite material provided in this embodiment include: a content of 64.8wt.% polyethylene terephthalate, a content of 15wt.% containing glycidyl methacrylate A thermoplastic elastomer of ester, a fiber content of 20 wt.%, and an antioxidant content of 0.2 wt.%.

[0084] The preparation process of the polyethylene terephthalate composite material provided in this example is as follows: after weighing each component of the formula, the polyethylene terephthalate is dried in a drying oven at 125°C for 5 hours , and then mix the polyethylene terephthalate and antioxidant in a high-speed mixer for 3 to 4 minutes to obtain the mixed raw material; add the mixed raw material to the feeder of the twin-screw extruder, and the fiber is fed through the side Adding at the mouth, adjusting the speed ratio of the main screw and the feeding screw, stabilizing the fiber content, making all the components melt extruded, cooled, granulated...

Embodiment 2

[0087]The components of the polyethylene terephthalate composite material provided in this embodiment include: polyethylene terephthalate with a content of 69.8wt.%, and glycidyl methacrylate with a content of 15wt.%. The thermoplastic elastomer, the fiber content is 15wt.%, and the antioxidant content is 0.2wt.%.

[0088] The preparation process of the polyethylene terephthalate composite material provided in this example is as follows: after weighing each component of the formula, the polyethylene terephthalate is dried in a drying oven at 125°C for 5 hours , and then mix the polyethylene terephthalate and antioxidant in a high-speed mixer for 3 to 4 minutes to obtain the mixed raw material; add the mixed raw material to the feeder of the twin-screw extruder, and the fiber is fed through the side Adding at the mouth, adjusting the speed ratio of the main screw and the feeding screw, stabilizing the fiber content, making all the components melt extruded, cooled, granulated, a...

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Abstract

The invention discloses a polyethylene terephthalate composite material. The composite material comprises 50-80 wt% of polyethylene terephthalate, 5-25 wt% of a thermoplastic elastomer containing glycidyl methacrylate, and 5-35 wt% of fibers. Correspondingly, the invention further provides a product prepared from the polyethylene terephthalate composite material and a preparation method of the polyethylene terephthalate composite material. The polyethylene terephthalate composite material provided by the invention has the characteristics of high strength, high rigidity and high impact toughness.

Description

technical field [0001] The invention relates to the field of material processing, in particular to a polyethylene terephthalate composite material, product and preparation method. Background technique [0002] PET (Polyethylene terephthalate, polyethylene terephthalate) material is brittle and has poor impact resistance, which limits its application as engineering plastics in actual production. There are two ways to toughen and modify PET materials: [0003] The first is alloying modification. It is often used to physically blend another polymer material with PET material to achieve toughening effect. It is often necessary to pretreat a certain component or add components such as compatibilizers to improve the inter-material properties. There are usually certain requirements for the structure and performance of another polymer component, and the overall process is complicated. [0004] The second is the rubber and elastomer toughening method, which also has certain require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08K9/06C08K7/14C08K7/06C08K7/10
Inventor 沈启立黄向东李旭顾晓瑜邹伟健蔡力亚
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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