A kind of low yi value nylon composite material and preparation method thereof

A nylon composite material and composite material technology are applied in the field of low YI value nylon composite material and its preparation, which can solve the problems of poor anti-oxidation effect and the like, and achieve the effect of low YI value and white product color.

Active Publication Date: 2021-06-04
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the antioxidant effect of antioxidants is to protect the resin matrix by first reacting with oxygen to protect the resin matrix; the more antioxidants are consumed in the early processing, the worse the antioxidant effect will be during later injection molding and use.

Method used

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  • A kind of low yi value nylon composite material and preparation method thereof
  • A kind of low yi value nylon composite material and preparation method thereof
  • A kind of low yi value nylon composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] S10. Add 60 parts of dry nylon resin polyhexamethylene adipamide (PA66), 3 parts of methylene chloride, 0.1 part of antioxidant 1098, 0.1 part of antioxidant 168, and 0.4 part of lubricant zinc stearate into the high-speed Mix evenly in a mixer to obtain a mixture; in this step, the dried nylon resin PA66 is obtained by blowing and drying nylon resin PA66 at 100°C for 6 hours; the speed of the high-speed mixer is 600r / min, and the mixing time is 4min;

[0025] S20. Add the mixture into the twin-screw extruder from the main feed port of the twin-screw extruder, and add 40 parts of alkali-free glass fiber to the twin-screw extruder from the side feed port of the twin-screw extruder. In the extruder, the low YI value nylon PA66 composite material is obtained after drawing, cooling, pelletizing and drying; in this step, the twin-screw extruder adopts zone temperature control, the temperature of the first zone is 255°C, and the temperature of the second zone is 260°C , the t...

Embodiment 2

[0027] S10. Add 60 parts of dry nylon resin polycaprolactam (PA6), 10 parts of tetrahydrofuran, 40 parts of titanium dioxide, 0.4 parts of antioxidant 1790, 0.2 parts of antioxidant S9228, and 0.8 parts of lubricant silicone into a high-speed mixer and mix Evenly, the mixture is obtained; in this step, the dry nylon resin PA6 is obtained by blowing and drying the nylon resin PA6 at 60°C for 12 hours; the speed of the high-speed mixer is 800r / min, and the mixing time is 2min;

[0028] S20, the mixture is added into the twin-screw extruder from the main feeding port of the twin-screw extruder, and a low YI value nylon PA6 composite material is obtained after drawing, cooling, pelletizing and drying; in this step, the double The screw extruder adopts zone temperature control, the temperature of the first zone is 225°C, the temperature of the second zone is 230°C, the temperature of the third zone is 235°C, the temperature of the fourth zone is 240°C, the temperature of the fifth z...

Embodiment 3

[0030] S10, 40 parts of dry nylon resin polyhexamethylene terephthalamide / hexamethylene isophthalamide (PA6T / 6I), 1 part of toluene, 0.1 part of antioxidant H161, 0.2 part of lubrication The polyethylene wax is added into the high-speed mixer and mixed evenly to obtain the mixture; in this step, the dry nylon resin PA6T / 6I is obtained by blowing and drying the nylon resin PA6T / 6I at 140°C for 4 hours; the speed of the high-speed mixer is 300r / min, the mixing time is 10min;

[0031] S20. Add the mixture into the twin-screw extruder from the main feed port of the twin-screw extruder, and add 60 parts of alkali-free glass fiber into the twin-screw extruder from the side feed port of the twin-screw extruder. In the extruder, the nylon PA6T / 6I composite material with low YI value is obtained after drawing, cooling, pelletizing and drying. The temperature in the third zone is 320°C, the temperature in the fourth zone is 325°C, the temperature in the fifth zone is 330°C, the temper...

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Abstract

The invention relates to the field of polymer material processing, in particular to a nylon composite material with a low YI value and a preparation method thereof. A low YI value nylon composite material is made of the following components by weight: 35-90 parts of nylon resin, 0.2-10 parts of volatile organic solvent, 0-40 parts of filler, 0-60 parts of reinforcing fiber, Antioxidant 0.05-0.4 part, lubricant 0.1-0.8 part. The low YI value nylon composite material in the present invention achieves the purpose of reducing the YI value of the composite material while using a small amount of antioxidant through the volatile organic solvent. The preparation method of low YI value nylon composite material in the present invention, by adding volatile organic solvent in nylon modification process, takes out the entrained air in the material at higher processing temperature, makes composite material have lower YI Value; suitable for applications that require high resin color.

Description

technical field [0001] The invention relates to the field of polymer material processing, in particular to a nylon composite material with a low YI value and a preparation method thereof. Background technique [0002] Polyamide, commonly known as nylon, refers to a class of polymers containing amide bonds (-NHCO-) ​​in the main molecular chain. Since PA66 was successfully developed and industrialized by DuPont in 1939, due to its excellent mechanical properties, mechanical High strength, good toughness, self-lubrication, good friction resistance, excellent heat resistance, high crystallinity, can be used for a long time at 150 ° C, in addition to excellent electrical properties and weather resistance, has been developed rapidly , has become the first of the five major engineering plastics. Widely used in machinery, automobiles, electrical appliances, textile equipment, chemical equipment, aviation, metallurgy and other fields. [0003] Nylon contains an amide bond (—NHCO—)...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L77/02C08L77/06C08L83/04C08K13/04C08K3/22C08K3/34C08K5/06C08K5/098C08K5/18C08K5/20C08K5/3492C08K5/526C08K7/14C08K7/08
Inventor 郭永新康杰
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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