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Bio-based polyamide composite material with high impact toughness as well as preparation method and application of bio-based polyamide composite material

A bio-based polyamide and composite material technology, which is applied in the field of preparation and material-based polyamide composite materials, can solve the problems of low notched impact strength of polyamide, and achieve the effect of reducing strain stress strength.

Pending Publication Date: 2022-08-02
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is how to solve the problem of low notched impact strength of existing polyamides

Method used

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  • Bio-based polyamide composite material with high impact toughness as well as preparation method and application of bio-based polyamide composite material
  • Bio-based polyamide composite material with high impact toughness as well as preparation method and application of bio-based polyamide composite material
  • Bio-based polyamide composite material with high impact toughness as well as preparation method and application of bio-based polyamide composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of a bio-based polyamide composite material with high impact toughness, comprising the following steps:

[0033] S1: Dry 90 parts of polyamide copolymer and 10 parts of POE-g-MAH in a vacuum oven at 80°C for 12 hours, for use in subsequent experiments;

[0034] S2: Put 90 parts of polyamide copolymer, 10 parts of POE-g-MAH and 0.1 part of antioxidant 1010 of the pretreatment material obtained in step S1 into a high-speed mixer and fully mix to obtain a mixture, and add the mixture to the double In the screw extruder, the temperature is 150 ℃, the feeding speed is 10 r / min, the screw speed is 20 r / min, the feed is extruded after preheating for 40 minutes, and then it is air-cooled by an air-cooled conveyor, and then fed into a plastic pelletizer for granulation. That is, the composite material pellets are obtained;

[0035] S3: The pellets obtained in step S2 are pressed into a predetermined shape with a vacuum laminator at a temperature of 180° C. ...

Embodiment 2

[0037] A preparation method of a bio-based polyamide composite material with high impact toughness, comprising the following steps:

[0038] S1: Dry 85 parts of polyamide copolymer and 15 parts of POE-g-MAH in a vacuum oven at 80°C for 12 hours for use in subsequent experiments;

[0039] S2: put 85 parts of polyamide copolymer, 15 parts of POE-g-MAH and 0.1 part of antioxidant 1010 of the pretreatment material obtained in step S1 into a high-speed mixer and fully mix to obtain a mixture, and add the mixture to the double In the screw extruder, the temperature is 150 ℃, the feeding speed is 10 r / min, the screw speed is 20 r / min, the feed is extruded after preheating for 40 minutes, and then it is air-cooled by an air-cooled conveyor, and then fed into a plastic pelletizer for granulation. That is, the composite material pellets are obtained;

[0040] S3: The pellets obtained in step S2 are pressed into a predetermined shape with a vacuum laminator at a temperature of 180° C. a...

Embodiment 3

[0042] A preparation method of a bio-based polyamide composite material with high impact toughness, comprising the following steps:

[0043] S1: Dry 80 parts of polyamide copolymer and 20 parts of POE-g-MAH in a vacuum oven at 80°C for 12 hours for use in subsequent experiments;

[0044] S2: put 80 parts of polyamide copolymer, 20 parts of POE-g-MAH and 0.1 part of antioxidant 1010 of the pretreatment material obtained in step S1 into a high-speed mixer and fully mix to obtain a mixture, and add the mixture to the double In the screw extruder, the temperature is 150 ℃, the feeding speed is 10 r / min, the screw speed is 20 r / min, the feed is extruded after preheating for 40 minutes, and then it is air-cooled by an air-cooled conveyor, and then fed into a plastic pelletizer for granulation. That is, the composite material pellets are obtained;

[0045] S3: The pellets obtained in step S2 are pressed into a predetermined shape with a vacuum laminator at a temperature of 180° C. a...

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Abstract

The invention discloses a bio-based polyamide composite material with high impact toughness as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The composite material is prepared from the following raw materials in parts by weight: 50 to 100 parts of bio-based polyamide copolymer, 1 to 50 parts of POE-g-MAH and 0.1 to 1 part of antioxidant 1010. The preparation method has the beneficial effects that by adding a small amount of flexibilizer and other reaction aids into the polyamide copolymer, the notch impact strength of the polyamide copolymer reaches a super-tough level, other properties are basically kept unchanged, and the problem that the notch impact strength of general nylon is extremely low can be solved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a bio-based polyamide composite material with high impact toughness, a preparation method and an application thereof. Background technique [0002] Polyamide, commonly known as nylon (Nylon), is a general name for a class of high polymers containing amide groups (-NHCO-) ​​in the repeating units of the macromolecular main chain. three types of polyamides and aromatic polyamides. It is widely used as a thermoplastic engineering plastic at home and abroad. Nylon has a variety of excellent properties, such as high toughness, abrasion resistance, impact resistance, fatigue resistance, chemical resistance, self-lubrication, low friction coefficient, etc. At present, nylon is mostly used to make various engineering plastic parts, fibers for textile and clothing, and is also partially used in films, coatings and adhesives. Various properties determine the wide range of uses ...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L51/06C08L23/08C08K5/134
CPCC08L77/00C08L51/06C08L23/0884C08K5/1345
Inventor 汪钟凯孙吉祥徐冬生柳巨澜
Owner ANHUI AGRICULTURAL UNIVERSITY
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