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Highly wear-resistant bio-based polyamide composite material and preparation method thereof

A bio-based polyamide and composite material technology is applied in the field of modified polyamide composite materials and their preparation, which can solve the problems such as the inability to maintain the wear resistance of wear-resistant polyamide modified materials for a long time, and achieve good mechanical properties and relatively low cost. The effect of low and lower production cost

Active Publication Date: 2016-02-17
CATHAY R&D CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the patent 201010118487, PA6 polyamide and polysiloxane are combined, and anhydrous calcium chloride is added, so that the shrinkage of the obtained composition is improved, but the wear resistance of the wear-resistant polyamide resin prepared by this method is easy Affected by the migration ability of silicone oil molecules, the wear resistance of wear-resistant polyamide modified materials cannot be maintained for a long time, so the stability needs to be improved

Method used

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  • Highly wear-resistant bio-based polyamide composite material and preparation method thereof

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preparation example Construction

[0037] The preparation method of the high wear-resistant bio-based polyamide composite material of the present invention comprises the following steps:

[0038] (1) Add polyamide resin, high molecular weight amino polysiloxane resin, dispersant and anti-aging agent into a high-speed mixer according to a certain proportion, and mix uniformly at room temperature to obtain a mixture;

[0039] (2) Using a twin-screw extruder to extrude the mixture obtained in step (1) to pelletize at 220-300° C., cool and dry to obtain a high wear-resistant bio-based polyamide composite material.

[0040] The following examples have adopted the following characterization methods to characterize the performance of the high wear-resistant bio-based polyamide composite:

[0041] 1. Tensile strength: measured according to ISO527-2 method.

[0042] 2. Bending strength: measured according to ISO178 method.

[0043] 3. Izod notched impact strength: measured according to ISO1791eA method.

[0044] 4. C...

Embodiment 1

[0061] In this embodiment, the molecular weight of the aminopolysiloxane resin used is 1 million, and the viscosity number of PA56 is 2.8. The preparation method of the high wear-resistant bio-based polyamide composite material in this embodiment is as follows:

[0062] (1) The ratio shown in Table 1, the polyamide 56 (PA56) of 100 parts by weight, the dispersant EBS of 0.5 parts by weight and the antiaging agent HS-03 of 1.5 parts by weight are blended by a high-speed mixer, and The mixture obtained after blending was supplied to a ZSK 40 mm twin-screw extruder manufactured by Keya (set temperature: a temperature based on the melting point of polyamide resin about 30° C. higher, screw rotation speed 300 rpm) from the top feed port.

[0063] (2) Add 0.5 parts by weight of anti-wear agent aminopolysiloxane resin into the twin-screw extruder from the side feed port.

[0064] (3) Cool the molten kneaded product extruded from the outlet of the die in the form of strands, and pell...

Embodiment 2

[0067] In this embodiment, the molecular weight of the aminopolysiloxane resin used is 1 million, and the viscosity number of PA56 is 2.2. The preparation method of the high wear-resistant bio-based polyamide composite material in this embodiment is as follows:

[0068] (1) The ratio shown in Table 1, the polyamide 56 (PA56) of 100 parts by weight, the dispersant EBS of 0.5 parts by weight and the antiaging agent HS-03 of 1.5 parts by weight are blended by a high-speed mixer, and The mixture obtained after blending was supplied to a ZSK 40 mm twin-screw extruder manufactured by Keya (set temperature: a temperature based on the melting point of polyamide resin about 30° C. higher, screw rotation speed 300 rpm) from the top feed port.

[0069] (2) Add 12 parts by weight of anti-wear agent aminopolysiloxane resin into the twin-screw extruder from the side feed port.

[0070] (3) Cool the molten kneaded product extruded from the outlet of the die in the form of strands, and pelle...

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Abstract

The invention provides a highly wear-resistant bio-based polyamide composite material and a preparation method thereof. The bio-based polyamide composite material contains polyamide resin and a wear-resisting agent. Production raw materials of the polyamide resin comprise pentanediamine and diacid. A weight ratio of the polyamide resin to the wear-resisting agent is 100: 0.5-25. The preparation method comprises the following steps: at least mixing the polyamide resin and amino polysiloxane at room temperature; and successively carrying out extrusion granulation at 220 to 300 DEG C, cooling and drying so as to obtain the highly wear-resistant bio-based polyamide composite material. The polyamide composite material provided by the invention has good mechanical properties and wear resistance; the wear-resisting agent amino polysiloxane does not influence the color of the polyamide composite material and poses no restriction to application occasions of the polyamide composite material; and the the preparation method provided by the invention has the advantages of easiness, low cost and accordance with production requirements of industrialization.

Description

technical field [0001] The invention belongs to the technical field of modified polyamide composite materials, and relates to a modified polyamide composite material and a preparation method thereof. Background technique [0002] Currently widely used polyamide resins include polyamide 6 (PA6) and polyamide 66 (PA66), both of which are prepared from derivatives of petroleum products such as diamines and dibasic acids. However, due to the non-renewability of petroleum resources, people are eager to use non-petroleum resources as alternative raw materials to prepare polyamide resins with properties equivalent to PA6 and PA66. The emergence of polyamide 56 (PA56) has solved this problem, which is conducive to alleviating the dependence of polyamide products on petroleum resources, and can lay a good foundation for building a resource recycling society. [0003] Although PA56, PA6 and PA66 have high mechanical strength, heat resistance, self-lubricating properties, excellent ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L83/04C08L83/08
Inventor 胡定军顾宗宗秦兵兵郑毅
Owner CATHAY R&D CENT CO LTD
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