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A kind of polyamide composition and preparation method thereof

A polyamide composition and drying technology, applied in the field of polyamide composition and its preparation, can solve the problems that the rigidity and toughness of the material cannot be taken into account at the same time, the tensile strength and the bending strength are decreased, etc. The effect of good mechanical strength

Active Publication Date: 2021-08-06
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under normal circumstances, after the toughening agent is added to the glass fiber reinforced material for toughening modification, the tensile strength and bending strength of the material will decrease accordingly, resulting in the inability to balance the rigidity and toughness of the material at the same time.

Method used

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  • A kind of polyamide composition and preparation method thereof
  • A kind of polyamide composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] According to parts by weight, dry 70 parts of PA6, 25 parts of maleic anhydride grafted polyolefin elastomer, 5 parts of ethylene-acrylic acid ester-glycidyl methacrylate copolymer, 1 part of pentaerythritol stearate, 0.5 part of anti- Oxygen 1098 and 0.5 parts of antioxidant PEP-36 were added to a high-speed mixer and mixed at high speed for 8 minutes, then added to a twin-screw extruder (temperature 210°C, screw speed 350 rpm, screw length-to-diameter ratio 36:1 ) in the process of melt blending, extrusion granulation, homogenization and drying to obtain toughened masterbatch;

[0028] Add 70 parts of PA66, 0.2 part of nano-montmorillonite, 0.2 part of silane coupling agent and 20 parts of toughening masterbatch into the high-speed mixer according to parts by weight and mix at high speed for 10 minutes, then add it to the twin-screw extruder from the main feeding hopper, Then add 10 parts of dry glass fiber from the side feeding hopper into a twin-screw extruder (temp...

Embodiment 2

[0030] According to parts by weight, dry 72 parts of PA6, 20 parts of maleic anhydride grafted polyolefin elastomer, 8 parts of ethylene-acrylic acid ester-glycidyl methacrylate copolymer, 0.8 part of ethylene bis stearamide, 0.4 part Antioxidant 1098 and 0.3 parts of antioxidant PEP-36 were added to the high-speed mixer after high-speed mixing for 8 minutes, and then added to the twin-screw extruder (temperature 280 ° C, screw speed is 550 rpm, and the screw length-to-diameter ratio is 44: 1) performing melt blending, extrusion granulation, homogenization and drying to obtain toughened masterbatch;

[0031] According to parts by weight, 50 parts of PA6, 0.5 part of nano talcum powder, 0.5 part of silane coupling agent and 30 parts of toughening masterbatch are added to the high-speed mixer and mixed at high speed for 10 minutes, then added to the twin-screw extruder from the main feeding hopper, and then Add 20 parts of dry glass fiber from the side feeding hopper into a twin...

Embodiment 3

[0033] According to parts by weight, dry 75 parts of PA6, 20 parts of maleic anhydride grafted polyolefin elastomer, 5 parts of ethylene-acrylic acid ester-glycidyl methacrylate copolymer, 0.6 part of modified polyethylene wax, 0.3 part of anti- Oxygen 1098 and 0.2 parts of antioxidant PEP-36 were added to a high-speed mixer and mixed at high speed for 8 minutes, then added to a twin-screw extruder (temperature 250 ° C, screw speed 400 rpm, screw length-to-diameter ratio 41:1 ) in the process of melt blending, extrusion granulation, homogenization and drying to obtain toughened masterbatch;

[0034] According to parts by weight, 30 parts of PA6, 0.3 part of calcium montanate, 0.5 part of silane coupling agent and 40 parts of toughening masterbatch are added to the high-speed mixer after high-speed mixing for 10 minutes, then added to the twin-screw extruder from the main feeding hopper, and then Add 30 parts of dry glass fiber from the side feeding hopper into a twin-screw ext...

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Abstract

The invention discloses a polyamide composition, which is composed of polyamide, toughening master batch, nucleating agent, coupling agent and glass fiber, wherein the toughening master batch is composed of polyamide 6, toughening agent, toughening Synergists, antioxidants and lubricants are prepared. The toughening component is added in the form of self-prepared toughening masterbatch, which improves the dispersion of the toughening component in polyamide on the one hand, and improves the reaction degree of the toughening component and polyamide on the other hand, greatly The toughening effect is improved, and the good mechanical strength of the material is retained at the same time, so that the polyamide composition can be prepared with excellent rigidity and toughness. The invention also discloses a preparation method of the polyamide composition.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a polyamide composition and a preparation method thereof. Background technique [0002] Polyamide (commonly known as nylon, abbreviated as PA) refers to the general term for a class of polymer materials containing polar amide groups (-NH-CO-) on the polymer chain. It is the largest variety and the largest output of the five general-purpose engineering plastics. , the most widely used, a class of engineering materials with excellent comprehensive performance, because of its superior mechanical properties, heat resistance, wear resistance, chemical resistance and other comprehensive properties, it is widely used in automobiles, power tools, electronic appliances, aerospace, etc. field. [0003] With the development of society, the use environment of engineering materials is becoming more and more harsh, and the requirements for performance are getting higher and higher...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L77/06C08L51/06C08L51/04C08L23/08C08K7/14C08J3/22
Inventor 刘亮俞建李荣群
Owner ORINKO NEW MATERIAL CO LTD
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