Polyamide material with metal texture and preparation method thereof

A polyamide and metal toner technology, applied in the field of materials, can solve the problems that cannot be effectively controlled and solved, and the mechanical properties and surface properties of the metal texture are difficult to balance, so as to achieve excellent mechanical properties and processing properties, improve dispersibility, and guarantee The effect of processability

Active Publication Date: 2020-01-14
GUANGDONG ALDEX NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these problems such as flow marks and weld marks in the spray-free field cannot be effectively controlled and solved, and it is difficult to balance the metal texture, good mechanical properties and surface properties

Method used

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  • Polyamide material with metal texture and preparation method thereof
  • Polyamide material with metal texture and preparation method thereof
  • Polyamide material with metal texture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] A kind of preparation method of polyamide material of the present invention, comprises the raw material described in any one in above low-viscosity polyamide 6 resin, high-viscosity polyamide 6 resin, antioxidant, lubricant, heat-resistant oxygen aging agent, It is weighed according to the weight fraction, mixed with a high-speed mixer, and the main feed is fed into a twin-screw extruder; the metal toner with a core-shell structure is fed into a twin-screw extruder through side feed, and then melted and extruded to obtain granules.

[0039] Preferably, the mixing speed of the high-speed mixer is 500-1200 rpm. Preferably, the process parameters of melt extrusion granulation of the twin-screw extruder are as follows: the temperature of the first zone is 245-265°C, the temperature of the second zone is 250-270°C, the temperature of the third zone is 250-270°C, and the temperature of the fourth zone is 250-270°C. 255~275℃, 255~275℃ in zone 5, 250~270℃ in zone 6, 250~270℃ in...

Embodiment 1

[0056] A kind of core-shell structure metal color powder spray-free polyamide material, comprising the following components by weight:

[0057]

[0058] Among them, the core-shell structure method of the metal toner with a core-shell structure is as follows: 1) First, add acrylic acid to water to form an aqueous solution with a concentration of 0.001g / L; Stir in the acrylic acid aqueous solution described in 1) for 0.5h, filter, wash and dry to obtain pretreated metallic toner; 3) add methyl acrylate monomer into ethanol to form a 0.001g / L solution; 4) mix Add the pretreated metal toner to the solution described in 3), and add azobisisoheptanonitrile at the same time, raise the temperature to 60°C under stirring to initiate polymerization, and react for 0.5h, filter, wash and dry, and finally obtain the core-shell structure metal toner.

[0059] The above-mentioned a kind of core-shell structure metal color powder spray-free polyamide material and its preparation method co...

Embodiment 2

[0065] A kind of core-shell structure metal color powder spray-free polyamide material, comprising the following components by weight:

[0066]

[0067] Among them, the core-shell structure method of the metal toner with the core-shell structure is as follows: 1) First, polyacrylic acid with a molecular weight of 20,000 is added to water to form an aqueous solution with a concentration of 0.01 g / L; Add the concentration of g / L into the polyacrylic acid aqueous solution described in 1) and stir for 3 hours, then filter, wash and dry to obtain the pretreated metal toner; L solution; 4) Add the pre-treated metal toner to the solution described in 3), add benzoyl peroxide at the same time, heat up to 70°C under stirring to initiate polymerization, react for 3 hours, filter, wash and dry, and finally The metal toner with core-shell structure is obtained.

[0068] The above-mentioned a kind of core-shell structure metal color powder spray-free polyamide material and its preparat...

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Abstract

The invention provides a polyamide material and a preparation method thereof. The core-shell-structured metal toner spraying-free polyamide material is prepared from the following raw materials: low-viscosity polyamide 6 resin, high-viscosity polyamide 6 resin, an antioxidant, a lubricant, a thermo-oxidative aging resisting agent and core-shell-structured metal toner. The spraying-free polyamide material prepared from the core-shell-structured metal toner has excellent mechanical properties and processability, and can be applied to the fields of automobiles and household appliances such as automobile exterior decorations, air conditioner decoration strips, and small household appliance exterior decoration structures.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a polyamide material with metallic texture and a preparation method thereof. Background technique [0002] Polyamide, also known as nylon, as an engineering plastic, has excellent mechanical properties, heat and oxygen aging resistance, self-lubricating properties, etc., and is relatively easy to process, so it is used in electrical tools, machinery, rail transit and other fields. Although the traditional plastic surface coating has good decoration, it will inevitably bring environmental pollution and increase the cost of the system. Therefore, in recent years, paint-free materials with a metallic texture have emerged. [0003] Due to the use of inorganic components in spray-free materials, their compatibility with polymers is very poor. This incompatibility is one of the important reasons for the problems of flow marks and weld lines in spray-free materials during actual us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L83/04C08K13/06C08K9/10C08K3/08C08K5/134C08K3/16
CPCC08L77/02C08L2205/025C08L2205/03C08K2003/0806C08K2003/0812C08K2003/0856C08L83/04C08K9/10C08K3/08C08K5/1345C08K3/16C08K13/06
Inventor 韩春春蔡雄李白羽
Owner GUANGDONG ALDEX NEW MATERIAL CO LTD
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