A flame retardant extrusion grade pc/abs composite material

A composite material, extrusion-grade technology, applied in the field of polymer material modification, can solve the problems of material toughness to be improved, difficult to slice, difficult to plastic molding, etc. active effect

Active Publication Date: 2021-04-20
厦门德丰行塑胶工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the technical problems existing in the prior art, this application avoids the defects of too high PC content of Shaab Company, which makes it difficult to form and slice the extruded sheet, and at the same time, avoids the defects of Covestro Company The material is easy to slice, but the defect that the toughness of the material needs to be improved

Method used

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  • A flame retardant extrusion grade pc/abs composite material
  • A flame retardant extrusion grade pc/abs composite material
  • A flame retardant extrusion grade pc/abs composite material

Examples

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preparation example Construction

[0029] The application continues to provide a method for preparing the flame-retardant extrusion grade PC / ABS composite material, comprising the following steps:

[0030] Step 1: Weigh 42-75 parts of PC resin, 14-35 parts of ABS raw powder, 5-10 parts of toughening compatibilizer, 5-10 parts of filler, 6-10 parts of flame retardant, Dropping agent 0.1-0.3 parts.

[0031] Step 2: Mix the above ingredients in a medium speed mixer for 3-7 minutes.

[0032] Step 3: Then melt and extrude the components mixed in step 2 through a twin-screw extruder, and granulate; wherein, the processing temperature of the twin-screw extruder is 210-260°C, and the conveying time of the mixture in the screw is 10-30 seconds.

[0033] In a preferred embodiment, the processing temperature of the twin-screw extruder can be set as follows: the temperature of the first zone of the twin-screw extruder is 210°C, the temperature of the second zone is 210°C, the temperature of the third zone is 210°C, and t...

Embodiment 1

[0035] In terms of parts by weight, the flame-retardant extrusion grade PC / ABS composite material of this embodiment is composed of the following raw materials in parts by weight: 50 parts of PC, 30.8 parts of ABS, and 205H-g-MAH of toughening compatibilizer 3 parts, flame retardant BDP 10 parts, 4000 mesh kaolin 6 parts, anti-dripping agent 0.1 part.

[0036] The flame-retardant extrusion grade PC / ABS composite material of this embodiment is prepared according to the following method steps:

[0037] Step 1: Mix the above components in a medium speed mixer for 5 minutes;

[0038] Step 2: Then extrude and granulate the components mixed in step 1 through a twin-screw extruder with a melting temperature of 210-260°C.

[0039] In this step, the temperature of each section of the twin-screw extruder is set as follows: the temperature of the first zone of the twin-screw extruder is 210°C, the temperature of the second zone is 210°C, the temperature of the third zone is 210°C, the t...

Embodiment 2

[0041] In terms of parts by weight, the flame-retardant extrusion grade PC / ABS composite material of this embodiment is composed of the following raw materials in parts by weight: 55 parts of PC, 25.8 parts of ABS, and 205H-g-MAH of toughening compatibilizer 3 parts, flame retardant BDP 10 parts, 4000 mesh kaolin 6 parts, anti-dripping agent 0.2 parts.

[0042] The flame-retardant extrusion grade PC / ABS composite material of this embodiment is prepared according to the following method steps:

[0043] Step 1: Mix the above components in a medium speed mixer for 5 minutes;

[0044] Step 2: Then extrude and granulate the components mixed in step 1 through a twin-screw extruder with a melting temperature of 210-260°C.

[0045]In this step, the temperature of each section of the twin-screw extruder is set as follows: the temperature of the first zone of the twin-screw extruder is 210°C, the temperature of the second zone is 210°C, the temperature of the third zone is 210°C, the t...

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Abstract

A flame-retardant extrusion-grade PC / ABS composite material, which consists of the following components calculated in parts by weight: 42-74 parts of PC resin, 10-32 parts of ABS resin, 5-8 parts of compatible toughening agent, 5-8 parts of filler, 6-10 parts of flame retardant, 0.1-0.3 parts of anti-dripping agent. Wherein, the PC resin is synthesized by bisphenol A and diphenyl carbonate through transesterification and polycondensation; the ABS is a resin produced by bulk polymerization; the compatibilizer toughening agent is maleic anhydride grafted with organic Silicon methacrylate; the flame retardant is liquid phosphoric acid ester or solid phosphoric acid ester; the anti-dripping agent is polytetrafluoroethylene (PTFE) with large molecular weight and the filler is kaolin. The invention is mainly used in extruded sheet materials for automobiles.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and in particular relates to a flame-retardant extrusion-grade PC / ABS composite material and a preparation method thereof, which are mainly used for automobile plates and meet the 1095 standard for flame-retardant characteristics of interior materials for commercial passenger cars. Background technique [0002] From 2016 onwards, the interior materials of commercial passenger cars need to meet the 1095 standard, especially the PC / ABS alloy. The two most important indicators are: 1. The smoke density of the material is less than 75; 2. The oxygen index of the material is greater than 22%. [0003] Generally speaking, large companies such as SABIC and Covestro have corresponding materials, such as SABIC's CY6414, which has a very high PC content. For the original production line, which is extruding ABS boards, The motor power cannot match the extruded PC / ABS with high PC conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L27/18C08L51/00C08K5/523C08K3/34
CPCC08L69/00C08L2201/02C08L2205/035C08L2205/08C08L55/02C08L27/18C08L51/00C08K5/523C08K3/346
Inventor 黄志勤李小波熊吉辉
Owner 厦门德丰行塑胶工业有限公司
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