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High-impact reinforced PA6 composite material and preparation method thereof

A composite material and high-impact technology, applied in the field of high-impact reinforced polyamide PA6 composite material and its preparation, can solve the problems of large shrinkage rate, impact resistance and tensile properties to be improved, etc.

Inactive Publication Date: 2021-04-16
南京跃贝新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because PA6 contains a large number of polar groups, it is easy to absorb water, and at the same time, the shrinkage rate after molding is relatively large, and the impact resistance and tensile properties need to be improved.

Method used

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  • High-impact reinforced PA6 composite material and preparation method thereof
  • High-impact reinforced PA6 composite material and preparation method thereof
  • High-impact reinforced PA6 composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: A kind of high-impact reinforced polyamide PA6 composite material comprises the following weight components, unit (g)

[0033]

[0034] Its preparation method comprises the following steps:

[0035] Step 1: Weigh each component of the composite material according to the ratio, and blend at a high speed of 100-250r / min for 8min;

[0036] Step 2: Then melt extrusion through an extruder, pelletize and cool to obtain a high-impact reinforced polyamide PA6 composite material.

[0037] The twin-screw extruder used is divided into 9 sections, and the set temperatures are 180-230°C, 230-250°C, 250-270°C, 250-270°C, 250-270°C, 250-270°C, 250-270°C ℃, 250-270℃, 250-270℃, the screw speed is 300r / min.

Embodiment 2

[0038] Embodiment 2: A kind of high-impact reinforced polyamide PA6 composite material comprises the following weight components, unit (g)

[0039]

[0040] Its preparation method comprises the following steps:

[0041] Step 1: Weigh each component of the composite material according to the ratio, and blend at a high speed of 175r / min for 5min;

[0042] Step 2: Then melt extrusion through an extruder, pelletize and cool to obtain a high-impact reinforced polyamide PA6 composite material.

[0043] The twin-screw extruder used is divided into 9 sections, and the set temperatures are 180-230°C, 230-250°C, 250-270°C, 250-270°C, 250-270°C, 250-270°C, 250-270°C ℃, 250-270℃, 250-270℃, the screw speed is 450r / min.

Embodiment 3

[0044] Embodiment 3: A kind of high-impact reinforced polyamide PA6 composite material comprises the following weight components, unit (g)

[0045]

[0046]

[0047] Its preparation method comprises the following steps:

[0048] Step 1: Weigh each component of the composite material according to the proportion, and blend at a high speed of 100r / min for 10min;

[0049] Step 2: Then melt extrusion through an extruder, pelletize and cool to obtain a high-impact reinforced polyamide PA6 composite material.

[0050] The twin-screw extruder used is divided into 9 sections, and the set temperatures are 180-230°C, 230-250°C, 250-270°C, 250-270°C, 250-270°C, 250-270°C, 250-270°C ℃, 250-270℃, 250-270℃, the screw speed is 400r / min.

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Abstract

The invention discloses a high-impact reinforced polyamide PA6 composite material, which is prepared from the following components in parts by weight: 50-80 parts of PA6, 15-30 parts of glass fiber, 2-15 parts of PA6I / 6T, 1-10 parts of toughening agent, 0.2-0.5 part of coupling agent, 0.1-0.6 part of antioxidant, 0.3-0.6 part of ultraviolet light absorber and 0.1-0.4 part of lubricating agent.According to the invention, the maleic anhydride grafted EPDM toughening agent is added into the glass fiber reinforced polyamide PA6 material, so that the composite material has the characteristic of high impact; and meanwhile, the semi-aromatic nylon PA6I / 6T is added and cooperates with the glass fibers to achieve a reinforcing effect, and the prepared composite material has the characteristics of high impact property, high rigidity, high tensile strength, excellent weather resistance and low emission, and is particularly suitable for automotive upholstery such as door and window frame decorative strips and interior door handle shells. The invention also discloses a preparation method of the high-impact reinforced polyamide PA6 composite material.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-impact reinforced polyamide PA6 composite material and a preparation method thereof. Background technique [0002] Polyamide is usually called nylon. It is a general term for polymers containing amide group repeating units in the polymer macromolecular chain. It is mainly obtained by polycondensation or self-polymerization of dibasic acids and diamines or amino acid lactams. It is the earliest developed , The most used thermoplastic engineering plastics. Polyamide 6 has the advantages of high mechanical strength, high melting point, wear resistance and oil resistance, and is widely used in the fields of automobiles, electromechanical, electronics, textiles, and home appliances. [0003] Because PA6 contains a large number of polar groups, it is easy to absorb water, and at the same time, the shrinkage rate after molding is relatively large, and the impact resist...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08L83/04C08L51/04C08K13/06C08K9/06C08K7/14C08K5/3475C08J5/08
CPCC08J5/08C08J2377/02C08J2477/06C08J2483/04C08J2451/04C08K13/06C08K9/06C08K7/14C08K5/3475
Inventor 徐青华但伟军魏高峰
Owner 南京跃贝新材料科技有限公司
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