Low-deformation easy-to-form reinforced nitrogen flame-retardant PA6/PA66 and preparation method thereof

A nitrogen-based flame retardant and PA66 technology, which is applied in the field of low-deformation and easy-to-form reinforced nitrogen-based flame retardant PA6/PA66 and its preparation, can solve the problems of reducing material fluidity, increasing material cost, poor rubber area, etc. Effects of dimensional stability, reduced assembly clearance, high flow properties

Pending Publication Date: 2022-04-15
江苏冠春新材料科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Glass fiber is widely used as a reinforcing agent for modified plastics of low-voltage electrical shells, but it is difficult to distribute glass fiber evenly in complex molds, and it is easy to appear poor glue areas, resulting in poor surface finish and unstable performance of the material, and the structure of glass fiber itself is also difficult. Significantly reduces the fluidity of the material, making it difficult to achieve high yield in one cavity, affecting production efficiency
In addition, the mold is severely worn during processing, especially for thin-walled parts, and the lack of glue is obvious, which affects the appearance and performance of injection molded products, especially after molding. The deformation is too large, and there is a large gap tolerance after assembly.
[0004] The production efficiency of the existing glass fiber reinforced nitrogen-based flame-retardant PA6 material is low, and there are large gaps in the assembly process, which cannot meet the needs of the increasingly mature market
[0005] In order to solve the assembly tolerance problem of the existing glass fiber-reinforced nitrogen-based flame-retardant PA6 materials, some technologies w...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-deformation easy-to-form reinforced nitrogen flame-retardant PA6/PA66 and preparation method thereof
  • Low-deformation easy-to-form reinforced nitrogen flame-retardant PA6/PA66 and preparation method thereof
  • Low-deformation easy-to-form reinforced nitrogen flame-retardant PA6/PA66 and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A low-deformation and easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66, including the following raw materials:

[0031]

[0032] Among them, the viscosity of PA6 resin is 2.2-2.6Pa.S. The viscosity of PA66 resin is 2.4-2.8Pa.S. The antioxidant is a mixture of antioxidant 245 and antioxidant 168 in a weight ratio of 1:1. The lubricant is N,N'-ethylene bisstearamide. The coupling agent is γ-aminopropyltriethoxysilane. The nucleating agent is BRUGGOLEN P22. The flow agent is BRUGGOLEN M1420.

[0033] A method for preparing low-deformation and easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66, comprising the following steps:

[0034] (1) take each raw material according to parts by weight;

[0035] (2) each raw material after weighing is mixed in medium-speed mixer for 3-7min, obtains mixed material;

[0036] (3) Add the mixed material obtained in step (2) into a twin-screw extruder, undergo melting reaction, extrude and granulate, whe...

Embodiment 2

[0038] A low-deformation and easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66, including the following raw materials:

[0039]

[0040]

[0041] Among them, the viscosity of PA6 resin is 2.2-2.6Pa.S. The viscosity of PA66 resin is 2.4-2.8Pa.S. The antioxidant is a mixture of antioxidant 245 and antioxidant 168 in a weight ratio of 1:1. The lubricant is N,N'-ethylene bisstearamide. The coupling agent is γ-aminopropyltriethoxysilane. The nucleating agent is BRUGGOLEN P22. The flow agent is BRUGGOLEN M1420.

[0042] A method for preparing low-deformation and easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66, comprising the following steps:

[0043] (1) take each raw material according to parts by weight;

[0044] (2) each raw material after weighing is mixed in medium-speed mixer for 3-7min, obtains mixed material;

[0045] (3) Add the mixed material obtained in step (2) into a twin-screw extruder, undergo melting reaction, extrude and gr...

Embodiment 3

[0047] A low-deformation and easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66, including the following raw materials:

[0048]

[0049]

[0050] Among them, the viscosity of PA6 resin is 2.2-2.6Pa.S. The viscosity of PA66 resin is 2.4-2.8Pa.S. The antioxidant is a mixture of antioxidant 245 and antioxidant 168 in a weight ratio of 1:1. The lubricant is N,N'-ethylene bisstearamide. The coupling agent is γ-aminopropyltriethoxysilane. The nucleating agent is BRUGGOLEN P22. The flow agent is BRUGGOLEN M1420.

[0051] A method for preparing low-deformation and easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66, comprising the following steps:

[0052] (1) take each raw material according to parts by weight;

[0053] (2) each raw material after weighing is mixed in medium-speed mixer for 3-7min, obtains mixed material;

[0054] (3) Add the mixed material obtained in step (2) into a twin-screw extruder, undergo melting reaction, extrude and gran...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Viscosityaaaaaaaaaa
Viscosityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a low-deformation easy-to-form reinforced nitrogen flame-retardant PA6/PA66 (polyamide 6/polyamide 66) and a preparation method thereof. The low-deformation easy-to-form reinforced nitrogen flame-retardant PA6/PA66 is prepared from the following raw materials in parts by weight: 45 to 63 parts of PA6 resin, 10 to 15 parts of PA66 resin, 10 to 20 parts of a nitrogen flame retardant MCA, 15 to 30 parts of calcium sulfate whiskers, 0.5 to 1 part of a high-temperature antioxidant, 0.5 to 1 part of a lubricant, 0 to 0.5 part of a nucleating agent, 0.5 to 1 part of a flowable agent and 0.5 to 1 part of a coupling agent. According to the PA6 material, the calcium sulfate whiskers are adopted to replace glass fibers, so that the warping degree of an injection molded product is reduced, the dimensional stability is improved, and the assembly gap is reduced.

Description

technical field [0001] The invention relates to a low-deformation easy-to-form reinforced nitrogen-based flame-retardant PA6 / PA66 and a preparation method thereof, belonging to the technical field of plastics. Background technique [0002] With the improvement of people's quality of life and the increase of market competition among various enterprises, manufacturers of low-voltage electrical appliances have put forward requirements for miniaturization, thinning and high efficiency of low-voltage electrical enclosures, and the injection molding performance and assembly performance of modified plastics put forward higher requirements. [0003] Glass fiber is widely used as a reinforcing agent for modified plastics of low-voltage electrical shells, but it is difficult to distribute glass fiber evenly in complex molds, and it is easy to appear poor glue areas, resulting in poor surface finish and unstable performance of the material, and the structure of glass fiber itself is al...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L77/02C08L77/06C08K7/08C08K5/134C08K5/526
Inventor 王红根周思春
Owner 江苏冠春新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap