Nylon composite material, and raw materials, device and method for preparation of same

A technology for nylon composite materials and preparation devices, which is applied in the field of nylon composite materials and their preparation raw materials and preparation devices, and can solve the problems of low strength of nylon composite materials, poor compatibility of nylon and glass fibers, and generation of floating fibers. Achieve the effects of improving the interface bonding strength, facilitating industrial production, and benefiting the mechanical strength

Inactive Publication Date: 2019-10-22
JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the poor compatibility of nylon and glass fiber, resulting in the low strength of the nylon composite material and the defects of floating fibers on the surface, and to provide a nylon composite material with high strength and no floating fibers on the surface Raw material and preparation device and method thereof

Method used

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  • Nylon composite material, and raw materials, device and method for preparation of same
  • Nylon composite material, and raw materials, device and method for preparation of same
  • Nylon composite material, and raw materials, device and method for preparation of same

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preparation example Construction

[0037] The preparation device of nylon composite material provided by the present invention comprises fiber pretreatment device 1 and cladding device 2; figure 1 As shown, the fiber pretreatment device 1 includes a bracket 11, a guide roller 12, a tension guide roller 13, an infiltration tank 14, a first dryer 15, a washing tank 16 and a second dryer 17, and the bracket 11 is used For fixing the continuous glass fiber, the guide roller 12 is used to guide the continuous glass fiber, and the soaking tank 14 and the washing tank 16 are provided with a tension guide roller 13 to guide and stretch the continuous glass fiber. The soaking tank 14 is used to soak the continuous glass fiber from the support 11, the first dryer 15 is used to dry the continuous glass fiber from the soaking tank 14, and the washing tank 16 is used to clean the source Wash the continuous glass fiber from the first dryer 15, and the second dryer 17 is used to dry the continuous glass fiber from the washing...

Embodiment 1

[0050] S1. Pretreatment of continuous glass fiber: such as figure 1 As shown, deionized water is used as a solvent to prepare a dopamine solution with a concentration of 2 g / L. The mass ratio of continuous glass fiber (10-15 μm in diameter) to dopamine solution is 25:1, and the continuous glass fiber roll passes through the guide roller 12 and the tension guide roller 13 are sent into the infiltration tank 14 equipped with dopamine solution for cyclic infiltration for 0.5h, then add the prepared Tris buffer solution to the dopamine solution, keep the pH value of the solution at 8.5, continue to circulate and stir infiltration for 5h, and then introduce The first dryer 15 is dried, and then sent to the washing tank 16 filled with ion water through the guide roller 12 and the tension guide roller 13 for washing, and then dried by the second dryer 17 to obtain pretreated continuous glass fiber roll. The SEM image of the pretreated continuous glass fiber roll is shown in image ...

Embodiment 2

[0053] S1. Pretreatment of continuous glass fiber: such as figure 1 As shown, deionized water is used as a solvent to prepare a dopamine solution with a concentration of 2 g / L. The mass ratio of continuous glass fiber (10-15 μm in diameter) to dopamine solution is 50:1, and the continuous glass fiber roll passes through the guide roller 12 and the tension guide roller 13 are sent into the infiltration tank 14 equipped with dopamine solution for cyclic infiltration for 5 hours, then add the configured Tris buffer solution to the dopamine solution, keep the pH value of the solution at 8.5, continue to circulate and stir and infiltrate for 5 hours, and then introduce the first A dryer 15 is dried, and then sent into a washing tank 16 filled with ionized water through a guide roller 12 and a tension guide roller 13 for washing, and then dried by a second dryer 17 to obtain a pretreated continuous glass fiber coil .

[0054] S2, coating treatment: such as figure 2As shown, the p...

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Abstract

The invention discloses a nylon composite material, and raw materials, a device and a method for preparation of the same, belonging to the field of high-molecular composite materials. The preparationmethod for the nylon composite material comprises the following steps: S1, pretreatment of continuous glass fibers: immersing the continuous glass fibers in a dopamine solution for 0.5-5 h, then adding a Tris buffer solution into the dopamine solution to adjust the pH value of the dopamine solution to 8-9, continuing immersion for 4-6 h, and then successively carrying out drying, washing and drying to obtain the pretreated continuous glass fibers; and S2, coating treatment: subjecting the pretreated continuous glass fibers to heating and pre-dispersion by heating at 240-260 DEG C, then immersing the continuous glass fibers in melt water obtained by melt extrusion of nylon, a compatibilizer, a lubricant and an antioxidant, and performing cooling, pelletizing and optional odor removal to obtain the nylon composite material. The nylon composite material obtained by using the method provided by the invention has high mechanical strength and is free of floating fibers on the surface.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a nylon composite material and its preparation raw material, preparation device and method. Background technique [0002] As an important engineering plastic, nylon has the characteristics of self-lubrication, chemical corrosion resistance and good thermal stability, and is widely used in the fields of automobiles and electronic appliances. However, although nylon has the above excellent characteristics, the polar amide bond in its molecular structure makes it very easy to absorb moisture, resulting in poor dimensional stability, low strength and poor low temperature and dry notched impact toughness of nylon products, which is extremely The earth limits the expansion of its application field. [0003] Using fibers as reinforcements can significantly improve the mechanical strength and dimensional stability of nylon. Among them, continuous fiber reinforced ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L51/06C08K9/04C08K9/10C08K7/14C08J5/08
CPCC08J5/08C08J2377/02C08J2377/06C08J2451/06C08K9/04C08K9/10C08K7/14
Inventor 王辉安峰申应军
Owner JINYOUNG XIAMEN ADVANCED MATERIALS TECH CO LTD
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