Ultrahigh-specific-gravity polyamide material as well as preparation method and application thereof

A technology of polyamide and polyamide resin, applied in the field of modification of polymer composite materials, can solve the problems of low strength, complex process, product application restrictions, etc., and achieve excellent processing performance, simplify processing technology, and improve balance. Effect

Active Publication Date: 2020-04-17
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology can obtain nylon composite materials filled with high ratio of tungsten powder, but the process is

Method used

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  • Ultrahigh-specific-gravity polyamide material as well as preparation method and application thereof
  • Ultrahigh-specific-gravity polyamide material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

[0035] The preparation method of ultra-high specific gravity polyamide material, the specific steps are as follows:

[0036] (1) Weigh the raw materials according to the formula, polyamide resin PA6 (Xinhui Meida PA6M2000) 10wt%, high-density polyethylene (Sinopec HDPE2200J) 5wt%, fluoropolymer processing aid PPA (3M, FX5920) 0.5wt% , Antioxidant (Ciba, 1098 / 168) 0.6wt%, metal tungsten powder 83.9wt%. Then add polyamide resin PA6 (Xinhui Meida PA6M2000), high-density polyethylene (Sinopec HDPE2200J), fluoropolymer processing aid PPA (3M, FX5920), and antioxidant (Ciba, 1098 / 168) Stir in a high-speed mixer for 5-10 minutes, and the speed of the main machine is 300 rpm.

[0037] (2) Add the uniformly stirred materials to the single-screw extruder for pre-processing, control the temperature of each heating section of the extruder to be between 220±10°C, and the screw speed of the main machine to 250±10r / min.

[0038] (3) After single-screw extrusion, the materials ar...

Example Embodiment

[0040] Example 2

[0041] The preparation method of ultra-high specific gravity polyamide material, the specific steps are as follows:

[0042] (1) Weigh the raw materials according to the formula, polyamide resin PA6 (Xinhui Meida PA6M2000) 10wt%, high-density polyethylene (Sinopec HDPE2200J) 10wt%, fluoropolymer processing aid PPA (3M, FX5920) 0.5wt% , Antioxidant (Ciba, 1098 / 168) 0.6wt%, metal tungsten powder 78.9wt%. Then add polyamide resin PA6 (Xinhui Meida PA6M2000), high-density polyethylene (Sinopec HDPE2200J), fluoropolymer processing aid PPA (3M, FX5920), and antioxidant (Ciba, 1098 / 168) Stir in a high-speed mixer for 5-10 minutes, and the speed of the main machine is 300 rpm.

[0043] (2) Add the uniformly stirred materials to the single-screw extruder for pre-processing, control the temperature of each heating section of the extruder to be between 220±10°C, and the screw speed of the main machine to 250±10r / min.

[0044] (3) The material is directly metered into the mai...

Example Embodiment

[0046] Example 3

[0047] The preparation method of ultra-high specific gravity polyamide material, the specific steps are as follows:

[0048] (1) Weigh the raw materials according to the formula, polyamide resin PA6 (Xinhui Meida PA6M2000) 10wt%, high density polyethylene (Sinopec HDPE2200J) 6wt%, fluoropolymer processing aid PPA (3M, FX5920) 0.5wt% , Antioxidant (Ciba, 1098 / 168) 0.6wt%, metal tungsten powder 82.9wt%. Then add polyamide resin PA6 (Xinhui Meida PA6M2000), high-density polyethylene (Sinopec HDPE2200J), fluoropolymer processing aid PPA (3M, FX5920), and antioxidant (Ciba, 1098 / 168) Stir in a high-speed mixer for 5-10 minutes, and the speed of the main machine is 300 rpm.

[0049] (2) Add the uniformly stirred materials to the single-screw extruder for pre-processing, control the temperature of each heating section of the extruder to be between 220±10°C, and the screw speed of the main machine to 250±10r / min.

[0050] (3) The material is directly metered into the main...

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Abstract

The invention belongs to the technical field of modification of polymer composite materials, and particularly relates to an ultrahigh-specific-gravity polyamide material as well as a preparation method and an application thereof. The ultrahigh-specific-gravity polyamide material is mainly composed of the following components in percentage by mass: 5 to 20 wt% of polyamide resin, 5 to 10 wt% of polyethylene resin, 60 to 90 wt% of metal tungsten powder, 0.3 to 1 wt% of a dispersant, and 0.1 to 1 wt% of an antioxidant. The ultrahigh-specific-gravity polyamide material provided by the invention has the characteristics of excellent processability, balanced physical and mechanical properties and high specific gravity, and can be used for forming products through an injection molding process andreplacing metal materials to manufacture balancing weights of instruments and meters.

Description

technical field [0001] The invention belongs to the technical field of modification of polymer composite materials, and in particular relates to an ultra-high specific gravity polyamide material and its preparation method and application. Background technique [0002] High specific gravity plastic is a typical application of replacing metal with plastic. It uses polymer materials as the base material, adds high specific gravity metal powder as filler, and adjusts the specific gravity and physical and mechanical properties of the product through different weight ratios and material combinations. Due to the low temperature processing and forming, high specific gravity materials have important applications in electromagnetic shielding and radiation protection in recent years. [0003] Invention patent CN100549071C discloses a method for preparing a new composite material of metal and plastic. This patent discloses a method of grinding metal tungsten powder (60-95wt%), resin (5...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L23/06C08K3/08B29C48/39B29B9/06
CPCC08L77/02C08L23/06C08K3/08B29C48/39B29B9/06C08L2207/062
Inventor 郝建鑫钱进明邓爵安吴磊邱智勇陈栩炜郝源增任萍
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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