A kind of dark flame-retardant nylon and preparation method thereof

A flame retardant nylon, dark color technology, applied in the field of nylon material reinforcement, can solve the problems of toner precipitation, surface floating fibers, etc., to achieve the effect of enhancing fusion, uniform distribution, and realizing industrialized large-scale products

Active Publication Date: 2022-06-07
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on the defects in the prior art, the object of the present invention is to provide a dark flame-retardant nylon, which not only improves the coloring ability of the toner in its components through special component selection and treatment, but also enhances the coloring ability of each component. Fully integrated, it solves the problems of toner precipitation and floating fibers on the surface of existing flame-retardant nylon products

Method used

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  • A kind of dark flame-retardant nylon and preparation method thereof
  • A kind of dark flame-retardant nylon and preparation method thereof

Examples

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Embodiment 1～4

[0032] Embodiments of the dark flame retardant nylon of the present invention, the preparation method of the product, comprising the following steps:

[0033] The lubricant and pigment are placed in the ultrasonic cell crusher, crushed at a frequency of 25kHz at room temperature for 4h to a particle size of≤ 200nm, mixed and stirred for 20min, and then mixed evenly with other components in proportion, transferred to a twin screw extruder, melted and blended at 230 ° C and extruded granulation, i.e., the dark flame retardant nylon was obtained.

[0034] The raw materials used in each embodiment are as follows, and the composition of the raw materials is shown in Table 1.

[0035] PA6 resin: high viscosity PA6 resin, grade HY-2800;

[0036] Glass fiber: short cut glass fiber, the length of the short cut glass fiber is 3 ~ 25mm, grade Chongqing glass fiber ECS301HP-3-H;

[0037] Antioxidants: antioxidant 1098;

[0038] Flame retardant: brominated polystyrene, grade XZ6700;

[0039] L...

Embodiment 5

[0048] The difference between the present embodiment and Example 1 is only that the time of the ultrasonic crushing treatment is 2h, and the particle size of the lubricant and the pigment after treatment > 200nm (particle size distribution is 500nm ~ 5μm).

[0049] Table 1

[0050]

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Abstract

The invention discloses a dark flame-retardant nylon and a preparation method thereof, belonging to the field of nylon material reinforcement. Adding a specific hyperbranched lubricant to the components of the nylon product of the present invention can effectively enhance the fusion between the components, promote the tighter connection between the glass fiber and the resin, and inhibit the phenomenon of floating fibers; Ultrasonic crushing treatment of the precursor can make the coloring material more evenly distributed in the mixing process. Even if a large amount of flame retardant is introduced into the components, the coloring ability of the final product can still be guaranteed, and the coloring material will not separate out. The invention also discloses a preparation method of the dark flame-retardant nylon, which has simple operation steps and can realize industrialized large-scale products.

Description

Technical field [0001] The present invention relates to the field of nylon material enhancement, specifically to a dark flame retardant nylon and a method of preparation thereof. Background [0002] PA6, also known as nylon 6, is widely used in industrial products because of its excellent strength and resistance, good processability and high thermal stability. In the existing technology, more glass fibers are used to enhance and modify PA6, giving the product a higher strength, but in some power tools around the heating element and some industrial electrical, the product needs to have a certain flame retardant performance, and some products even require the material flame retardant level to reach V0. Therefore, these nylon materials will add a large number of flame retardants to the components, but this practice hinders the fusion between pigments, glass fibers and PA6 resins, and the insufficient fusion of glass fibers and PA6 resins makes the surface of the product floating fib...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L25/06C08L87/00C08L67/00C08K7/14
CPCC08L77/02C08L2201/02C08L25/06C08L87/00C08L67/00C08K7/14
Inventor 孙力强袁刚敬新科祝润生曾赛
Owner KINGFA SCI & TECH CO LTD
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