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Composite fiber reinforced nylon 6 regenerated material and preparation method thereof

A technology of composite fibers and recycled materials, applied in the field of polymer materials, can solve the problems of inability to meet industrial needs, unsatisfactory mechanical properties of recycled materials, and reduced mechanical properties.

Inactive Publication Date: 2018-08-10
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the glass fiber reinforced nylon 6 material is used for injection molding, its mechanical properties will be significantly reduced. In the prior art, the recycled material is usually reinforced and modified by adding glass fiber again, but after regeneration, the mechanical properties of the recycled material remain the same. Not ideal enough to meet industrial needs

Method used

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  • Composite fiber reinforced nylon 6 regenerated material and preparation method thereof

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preparation example Construction

[0029] The present invention also provides the preparation method of the composite fiber reinforced nylon 6 recycled material described in the above technical solution, comprising the following steps: adding glass fiber reinforced nylon 6 waste, nylon 6, toughening agent, lubricant, antioxidant, color masterbatch After mixing, it is extruded and pelletized by adding basalt fiber to obtain composite fiber reinforced nylon 6 recycled material. .

[0030] In the present invention, the moisture content of the glass fiber reinforced nylon 6 scrap and nylon 6 independently is preferably ≤0.2%. When the moisture content of the glass fiber reinforced nylon 6 waste or nylon 6 is greater than 0.2%, the present invention preferably dries the glass fiber reinforced nylon 6 waste or nylon 6 to control the moisture content to be ≤0.2%; the drying temperature It is preferably 90-110° C., more preferably 100° C.; the drying method is not particularly limited in the present invention, and com...

Embodiment 1

[0039] Weigh the raw materials according to the following mass percentages: 70% glass fiber reinforced nylon 6 waste, 20% nylon 6, 10% continuous basalt fiber, 0.2% ethylene bis stearamide, 0.1% antioxidant , 1% color masterbatch; the antioxidant is obtained by compounding antioxidant 1098 and antioxidant 168 with a mass ratio of 1:1;

[0040] Glass fiber reinforced nylon 6 scrap, nylon 6, toughening agent, lubricant, antioxidant, color masterbatch are mixed 3min with the rotating speed of 750 rpm in a high-speed mixer to obtain a mixture;

[0041] The compound is transferred to the twin-screw extruder, and the basalt fiber is added from the feed port of the extruder, and the basalt fiber content is 10% by adjusting the feeding speed and the number of fiber strands in the extrusion process , set the speed of the extruder to 10-40HZ, the frequency of the extruder to 39-41HZ, the current of the host machine of the extruder to 180-200A, the temperature of each zone of the extrude...

Embodiment 2

[0043] Weigh raw materials according to the following mass percentages: 50% glass fiber reinforced nylon 6 waste, 30% nylon 6, 15% continuous basalt fiber, 5% polyethylene vinyl acetate, 0.2% ethylene bis-stearate Acid amide, 0.2% antioxidant, 0.5% color masterbatch; the antioxidant is obtained by compounding antioxidant 1098 and antioxidant 168 with a mass ratio of 1:1;

[0044] Glass fiber reinforced nylon 6 scrap, nylon 6, toughening agent, lubricant, antioxidant, color masterbatch are mixed 3min with the rotating speed of 750 rpm in a high-speed mixer to obtain a mixture;

[0045] The compound is transferred to the twin-screw extruder, and the basalt fiber is added from the feed port of the extruder, and the content of the basalt fiber is 15% by adjusting the feeding speed and the number of fiber strands in the extrusion process , set the speed of the extruder to 10-40HZ, the frequency of the extruder to 39-41HZ, the current of the host machine of the extruder to 180-200A,...

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Abstract

The invention provides a composite fiber reinforced nylon 6 regenerated material, which is prepared from the following components with contents by mass: 30 to 70 percent of glass fiber reinforced nylon 6 waste, 18 to 40 percent of nylon 6, 9 to 21 percent of basalt fiber, 0 to 9 percent of toughener, 0.1 to 0.2 percent of lubricant, 0.1 to 0.2 percent of antioxidant and 0.5 to 1 percent of color master batch. According to the composite fiber reinforced nylon 6 regenerated material, the glass fiber reinforced nylon 6 waste is reinforced by adopting the basalt fiber, that is, two fibers of the basalt fiber and a glass fiber are adopted to carry out composite reinforcement, and are combined with other components, and the glass fiber reinforced nylon 6 waste is effectively improved in mechanical performance, and meanwhile, is also improved in dimensional stability.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a composite fiber reinforced nylon 6 recycled material and a preparation method thereof. Background technique [0002] Nylon 6 has good mechanical properties, good heat resistance and wear resistance, good self-lubrication and electrical insulation, and also has the advantages of self-extinguishing and strong chemical stability. It is one of the most widely used engineering plastics. Nylon 6 composite materials modified by glass fiber have more excellent mechanical properties and are widely used in automobiles, household appliances, electronics, building materials, sports and fitness equipment and other fields. [0003] However, with the increase in the amount of glass fiber reinforced nylon 6 material, the amount of waste plastic generated is increasing day by day. After the glass fiber reinforced nylon 6 material is used for injection molding, its mechanical properties will be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K7/14C08K7/10C08J5/04
CPCC08J5/047C08J2377/02C08J2477/02
Inventor 吴广峰王焱王春艳张会轩
Owner CHANGCHUN UNIV OF TECH