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High-gloss spraying-free ultra-black PC/ASA alloy material and preparation method thereof

An alloy material and spray-free technology, which is applied in the field of high-gloss spray-free ultra-black PC/ASA alloy material and its preparation, PC/ASA alloy material, can solve problems such as difficult mass production, and achieve improved surface gloss and simple process Effect

Inactive Publication Date: 2021-02-19
SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing spray-free PC / ABS alloy materials still cannot meet the requirements of wear-resistant, high-gloss and extra-black aesthetic effects in special applications, and it is difficult to mass-produce due to current technical means

Method used

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  • High-gloss spraying-free ultra-black PC/ASA alloy material and preparation method thereof
  • High-gloss spraying-free ultra-black PC/ASA alloy material and preparation method thereof
  • High-gloss spraying-free ultra-black PC/ASA alloy material and preparation method thereof

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Embodiment Construction

[0025] In order to facilitate understanding of the present invention, the present invention enumerates the following examples. For those skilled in the art, the examples are only to help understand the present invention, and should not be regarded as specific limitations on the present invention.

[0026] The raw materials used below are all commercially available, and the equipment used includes a mixer (100L), a ZSK-26Mc twin-screw extruder (50), a kneader (150L), and a crusher (CL580).

[0027] The physical and chemical properties of ordinary carbon black and special carbon black (carbon black PFEB) are shown in Table 1.

[0028] Table 1

[0029]

[0030] Preparation

[0031] The preparation method of PC / ASA alloy material is:

[0032] (1) Knead ASA, carbon black and a small amount of processing aids in a kneader at 180-220 ° C for 10-30 minutes, and then crush them into granular kneaded pellets of uneven size, the average size of soybeans .

[0033] (2) After mixin...

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Abstract

The invention discloses a high-gloss spraying-free ultra-black PC / ASA alloy material and a preparation method thereof, and belongs to the technical field of polymer material modification. The PC / ASA alloy material is composed of the raw materials in parts by mass: 60-75 parts of polycarbonate (PC), 15-30 parts of ASA, 2-4 parts of graphite, 1-2 parts of carbon black powder, 0.1-0.5 part of violetB (solvent violet 13), 3-5 parts of a highlight brightener and 0.1-1 part of a processing aid, and is prepared by mixing the raw materials, extruding by a double-screw extruder and granulating. On onehand, the graphite is added to improve the wear resistance of the material, and the special carbon black and the violet B are added to synergistically improve the dispersity of the carbon black and the overall blackness of the alloy material; on the other hand, the highlight brightener is introduced to improve the surface gloss of the material, and the obtained PC / ASA alloy product has the beautiful effects of wear resistance, high gloss and ultra-black.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and relates to a PC / ASA alloy material, in particular to a high-gloss spray-free extra-black PC / ASA alloy material and a preparation method thereof. Background technique [0002] The PC / ASA alloy material formed by polycarbonate (PC), acrylic rubber, acrylonitrile and styrene graft copolymer (ASA) has excellent mechanical properties and thermal properties, and is widely used in automobiles, home appliances, digital products etc. However, due to the ester group contained in the PC molecular chain, it is easy to absorb water, has poor chemical resistance stability, especially poor tolerance to alkaline substances, and cannot be degraded in a weakly alkaline environment. Parts are prone to residual stress. Moreover, due to the existence of rubber PB, ABS is easily corroded when painting. [0003] In order to prevent PC / ABS alloy products from cracking and flow mark weld line...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L51/04C08L71/00C08L67/02C08K3/04C08K5/13C08K5/526C08K5/134C08K5/20C08K13/02
CPCC08L69/00C08K2201/014C08L2205/035C08L51/04C08L71/00C08L67/02C08K3/04C08K5/13C08K5/526C08K5/1345C08K5/20C08K13/02
Inventor 刘春艳汪刘磊
Owner SHANGHAI ZHONGLEI NEW MATERIAL SCI CO LTD