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Spraying-free high-flowability high-impact flame-retardant PC material with metal texture and preparation method and application of material

A technology of metal powder and flame retardant, which is applied in the field of materials, can solve the problem of difficulty in preparing materials with fluidity, impact performance and flame retardancy, inability to balance fluidity, impact performance and flame retardancy, and decline in mechanical properties and impact resistance, etc. problems, to achieve the effect of facilitating mass production, improving impact performance and appearance, and improving metal texture

Pending Publication Date: 2021-11-23
SHANGHAI KUMHO SUNNY PLASTICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to aim at the poor compatibility of metal pigments and PC in the above-mentioned prior art, which will be unevenly dispersed in the PC matrix, and appearance defects such as weld lines and flow marks are prone to appear in the appearance of the prepared product, and make the mechanical properties of the material especially It is the defect that the impact resistance performance declines, and the fluidity, impact performance and flame retardancy of the existing metal texture PC material cannot be taken into account, it is difficult to prepare a material with good metal texture effect, fluidity, impact performance and flame retardancy, and it is impossible Applied to the defects of wall switches, providing a high-flow, high-impact, flame-retardant PC material with a metal texture and no spraying, and its preparation method and application

Method used

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  • Spraying-free high-flowability high-impact flame-retardant PC material with metal texture and preparation method and application of material
  • Spraying-free high-flowability high-impact flame-retardant PC material with metal texture and preparation method and application of material
  • Spraying-free high-flowability high-impact flame-retardant PC material with metal texture and preparation method and application of material

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Experimental program
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Effect test

Embodiment 1

[0052] This embodiment relates to a high-flow, high-impact flame-retardant PC material with a metallic texture and no spraying, and its composition is shown in Tables 1 and 2;

[0053] The preparation method of the high-flow high-impact flame-retardant PC material of the present embodiment comprises the following steps:

[0054] (1) First prepare metal powder masterbatch 1: pre-mix 85 parts of MAH-St-MMA1 copolymer, 1680.2 parts of antioxidant, and 0.5 part of lubricant aromatic phosphate in the mixer, and then pre-mix The material is extruded through a twin-screw extruder, and at the same time, 115 parts of metal powder are added to the melt according to the ratio by side feeding, and the metal powder masterbatch is obtained by extrusion. Wherein the temperature of the extruder used is 200-230° C., the length-to-diameter ratio of the screw is 25, and the screw speed is 400 rpm.

[0055] (2) By weight, 176 parts of PC, 110 parts of metal powder masterbatch, 18 parts of haloge...

Embodiment 2

[0057] This embodiment relates to a high-flow, high-impact flame-retardant PC material with a metallic texture and no spraying, and its composition is shown in Tables 1 and 2;

[0058] The preparation method of the high-flow high-impact flame-retardant PC material of the present embodiment comprises the following steps:

[0059] (1) First prepare metal powder masterbatch 2: 75 parts by weight of MAH-St-MMA2 copolymer, 10760.2 parts of antioxidant, 0.5 part of pentaerythritol ester of lubricant are premixed in the mixer, and then the premixed material is passed through Extruded by a twin-screw extruder, and at the same time, 225 parts of metal powder were added to the melt according to the ratio by side feeding, and extruded to obtain metal powder master batches. Wherein the temperature of the extruder used is 200-230° C., the length-to-diameter ratio of the screw is 35, and the screw speed is 600 rpm.

[0060] (2) Pre-mix 286 parts of PC, 24 parts of metal powder masterbatch,...

Embodiment 3

[0062] This embodiment relates to a high-flow, high-impact flame-retardant PC material with a metallic texture and no spraying, and its composition is shown in Tables 1 and 2;

[0063] The preparation method of the high-flow high-impact flame-retardant PC material of the present embodiment comprises the following steps:

[0064] (1) First prepare metal powder masterbatch 3: 99 parts by weight of MAH-St-MMA3 copolymer, 10760.2 parts of antioxidant, and 0.5 part of pentaerythritol ester of lubricant are premixed in the mixer, and then the premixed material is passed through Extruded by a twin-screw extruder, and at the same time, 31 parts of metal powder were added to the melt by side feeding according to the proportion, and extruded to obtain metal powder masterbatch. Wherein the temperature of the extruder used is 220-250° C., the length-to-diameter ratio of the screw is 25, and the screw speed is 500 rpm.

[0065] (2) By weight, 152 parts of PC, 310 parts of PC, 320 parts of...

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Abstract

The invention discloses a spraying-free high-flowability high-impact flame-retardant PC material with metal texture as well as a preparation method and application of the material. The material is prepared from 55 to 89 parts of PC resin, 1 to 25 parts of metal powder master batch, 5 to 10 parts of halogen-free flame retardant, 5 to 10 parts of flexibilizer, 0.1 to 0.5 part of antioxidant and 0.2 to 2 parts of lubricant; wherein the metal powder master batch is metal powder subjected to coating treatment by an MAH-St-MMA copolymer. The compatibility between the metal powder and PC is improved through MAH-St-MMA, the material performance and the metal texture are improved, and the technical problem that in the prior art, the flowability, the impact property and the flame retardant property of a metal texture PC material cannot be considered at the same time is solved through cooperative use of high-flowability PC, the metal powder master batch, the flexibilizer and the halogen-free flame retardant; meanwhile, the material has a good appearance effect, high flowability, impact resistance and flame retardance, is easy to form and meets the requirements of wall switches.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a flame-retardant PC material and its preparation method and application, in particular to a high-flow, high-impact flame-retardant PC material with metallic texture and spray-free, as well as its preparation method and application. Background technique [0002] The metal-textured spray-free plastic is a new type of functional material. By adding and blending metal pigments into the plastic substrate, metal-textured parts can be prepared at one time. Compared with the traditional process of injection molding and then spraying, spray-free plastics do not require complicated spraying processes, and can be formed at one time. Organic solvents are safer and more environmentally friendly, in line with the development trend of energy conservation and environmental protection, and have begun to be widely used in automotive accessories, household appliances and other fields. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L23/08C08L83/04C08K9/10C08K3/08C08K5/523
CPCC08L69/00C08L2201/02C08L2201/08C08K2003/0806C08K2003/0812C08K2003/0831C08L51/04C08L23/0869C08L83/04C08K9/10C08K3/08C08K5/523
Inventor 蒋晓峰辛敏强郭东平江尚科李赵波
Owner SHANGHAI KUMHO SUNNY PLASTICS
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