Low-precipitation flame-retardant PC/ABS alloy material and preparation method thereof
An alloy material and flame retardant technology, which is applied in the field of low precipitation flame retardant PC/ABS alloy material and its preparation, can solve problems such as affecting the flame retardant performance of products, accelerate migration, etc., so as to reduce the influence of material performance and appearance, and achieve compatibility. High performance and stable flame retardant performance
Pending Publication Date: 2021-11-16
ORINKO NEW MATERIAL CO LTD
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Problems solved by technology
Most of the flame retardants added to PC / ABS alloy materials are some low-molecular phosphorus, bromine, silicon, etc. These small molecular substances are easy to migrate from the inside to the surface, especially in high temperature environments, it is easier to accelerate the migration , which ultimately affects the flame retardancy of the product
Method used
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Examples
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Effect test
Embodiment 1-5、 comparative example 1-3
[0020] Examples 1-5 and Comparative Examples 1-3 relate to a flame-retardant PC / ABS alloy material, and its raw material formula is shown in Table 1. Among them, PC resin, Mitsubishi S-2000F (number average molecular weight 20000-25000, melt index 10g / min) was selected; Acrylonitrile-butadiene-styrene copolymer ABS was selected from Shanghai Gaoqiao Petrochemical 8434; Methyl methacrylate-butadiene-styrene terpolymer is selected from Rohm and Haas EXL2690; polyethylene glycol ester is selected from Yizheng FG600 (viscosity is 0.67dL / g); flame retardant is selected from Ke Polyya's BC-58; transesterification inhibitor, commercially available; antioxidant, select commercially available 168 / 1076 mixture; internal lubricant, select commercially available PETS; external lubricant, select commercially available silicone masterbatch ; Anti-dripping agent, select commercially available high molecular weight polytetrafluoroethylene; Carbon black, commercially available.
[0021] The a...
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Abstract
The invention discloses a low-precipitation flame-retardant PC / ABS alloy material and a preparation method thereof, and relates to the technical field of polycarbonate materials, the low-precipitation flame-retardant PC / ABS alloy material comprises the following raw materials by mass: 50-65% of polycarbonate, 12-20% of an acrylonitrile-butadiene-styrene copolymer, 4-12% of macrogol ester, 5-15% of a flame retardant, 3-7% of a flexibilizer, 1-4% of an auxiliary agent, 0.1-0.5% of an ester exchange inhibitor, and 0-3% of a pigment. The macrogol ester with ultra-low viscosity is added into the PC / ABS alloy material, the macrogol ester is easier to migrate to the surface layer of a melt in the injection molding process, and a protective film is formed on the surface of the material by utilizing the crystallinity of the macrogol ester, so that the problem of precipitation of a low-molecular flame retardant in the high-temperature processing and storage process is effectively solved; the compatibility between the added ester exchange inhibitor and the base material is high, the ester exchange reaction between the PC and the macrogol ester can be weakened through side feeding and the addition of the ester exchange inhibitor, and the influence of the macrogol ester on the performance and appearance of the material is reduced.
Description
technical field [0001] The invention relates to the technical field of polycarbonate materials, in particular to a low-precipitation flame-retardant PC / ABS alloy material and a preparation method thereof. Background technique [0002] PC / ABS, a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, is a combination of polycarbonate (Polycarbonate) and acrylonitrile-butadiene-styrene copolymer (ABS) Plastic plastic, which combines the excellent characteristics of two materials, the formability of ABS material and the mechanical properties of PC, impact strength, temperature resistance, ultraviolet (UV) resistance, etc., can be widely used in automotive interior parts, business machines, communication equipment , household appliances and lighting equipment. [0003] Most electrical materials have flame-retardant and fire-resistant requirements, and the conventional plastic grades can only reach HB or V2 grades. In order to meet the stricter V0 grade requireme...
Claims
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IPC IPC(8): C08L69/00C08L55/02C08L71/02C08K3/32C08K5/521
CPCC08L69/00C08K2003/321C08L2201/02C08L55/02C08L71/02C08K3/32C08K5/521
Inventor 张正何继辉魏子芳陈贤宏吕游黄骎吕福成
Owner ORINKO NEW MATERIAL CO LTD