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High-glass-fiber, high-surface-appearance and high-strength nylon 6 composite material and preparation method thereof

A composite material and high-strength technology, which is applied in the field of high-glass fiber, high-appearance, high-strength nylon 6 composite materials and its preparation, can solve the problems of poor appearance, low performance, and limited application range of materials, and achieve good appearance quality , high-strength effect

Inactive Publication Date: 2017-11-07
5ELEM HI TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the high glass fiber filled material PA6I currently on the market has the defects of low performance and poor appearance, which limits the scope of application of the material. Therefore, it is necessary to develop a high glass fiber, high appearance, high strength reinforced nylon 6 material to Adapt to market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The percentage by weight of each component is: nylon 6, 35%; flat glass fiber, 50%; surface modifier PA6I, 15%. Weigh Nylon 6 and surface modifier PA6I according to the above component distribution ratio, after high-speed mixing, melt and extrude with side-fed flat glass fiber through a twin-screw extruder, and then pelletize through a granulator to produce The pellets were dried in an oven at 120°C for 4 hours, and then obtained by injection molding with an injection molding machine; the temperature of the extruder was set at 210-260°C, the temperature of the injection molding machine was set at 260-300°C, and the injection molding pressure was 70-120bar.

Embodiment 2

[0036] The percentage by weight of each component is: nylon 6, 25%; flat glass fiber, 60%; surface modifier PA6I, 15%. Weigh various materials except flat glass fiber according to the above component distribution ratio, after high-speed mixing, melt and extrude with side-fed flat glass fiber through a twin-screw extruder, and then pelletize through a granulator to produce The pellets were dried in an oven at 120°C for 4 hours, and then obtained by injection molding with an injection molding machine; the temperature of the extruder was set at 210-260°C, the temperature of the injection molding machine was set at 260-300°C, and the injection pressure was 70-120bar.

Embodiment 3

[0038] The percentage by weight of each component is: nylon 6, 45%; glass fiber, 50%; surface modifier PA6I, 5%. Weigh various materials except flat glass fiber according to the above component distribution ratio, after high-speed mixing, melt and extrude with side-fed flat glass fiber through a twin-screw extruder, and then pelletize through a granulator to produce The pellets were dried in an oven at 120°C for 4 hours, and then obtained by injection molding with an injection molding machine; the temperature of the extruder was set at 210-260°C, the temperature of the injection molding machine was set at 260-300°C, and the injection pressure was 70-120bar.

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Abstract

The invention discloses a high-glass-fiber, high-surface-appearance and high-strength enhanced nylon 6 material. The high-glass-fiber, high-surface-appearance and high-strength enhanced nylon 6 material is prepared from the following components in percentage by weight: 25 percent to 60 percent of nylon 6, 40 percent to 65 percent of glass fibers and 1 percent to 25 percent of a surfactant PA6I. The invention further discloses specific steps for preparing the material: taking all materials except the glass fibers according to the component ratio; after uniformly mixing the materials at a high speed, carrying out melting extrusion on the mixed materials and the glass fibers, which are laterally fed, through a double-screw extruder; dicing through a granulator; drying generated grains in a drying oven and carrying out injection molding to obtain the high-glass-fiber, high-surface-appearance and high-strength enhanced nylon 6 material, wherein the temperature of the extruder is 250 DEG C to 290 DEG C. The high-glass-fiber, high-surface-appearance and high-strength enhanced nylon 6 material has the beneficial effects that the defect that traditional high-filling glass fiber enhanced nylon 6 has poor surface appearance is overcome by the high-strength and high-apparent-quality glass fiber enhanced nylon 6 material.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a nylon 6 composite material with high glass fiber, high appearance and high strength and a preparation method thereof. Background technique [0002] Polyamide resin is commonly known as nylon (Nylon), English name Polyamide, referred to as PA, it is a general term for polymers containing amide groups in the repeating unit of the macromolecular main chain. Polyamide can be obtained by ring-opening polymerization of lactam, or by polycondensation of diamine and dibasic acid. It was the DuPont company of the United States that first developed the resin for fiber, and it was industrialized in 1939. In the 1950s, the development and production of injection molding products began to replace metals to meet the requirements of lightweight and cost-reducing downstream industrial products. PA has good comprehensive properties, including mechanical properties, heat resist...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L77/06C08K7/14C08J5/04
CPCC08L77/02C08J5/043C08J2377/02C08J2477/06C08L2205/02C08L77/06C08K7/14
Inventor 李杰黄骥冀相建
Owner 5ELEM HI TECH CORP
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