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Halogen-free anti-flaming PC/ABS plastic alloy and preparation method thereof

A technology of ABS plastic and alloy, applied in the field of preparation of PC/ABS plastic alloy, can solve problems such as affecting the mechanical properties of PC/ABS plastic alloy, and achieve the effects of reducing the entry of external oxygen, promoting cross-linking, and preventing dripping.

Active Publication Date: 2017-10-10
汕头市忠诚行塑料环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the above-mentioned halogen-free flame retardant is used in PC / ABS plastic alloys, in order to achieve a significant flame-retardant effect, a large amount (generally more than 10wt%) is required; and when the amount of the flame retardant is large, it must Affect the mechanical properties of PC / ABS plastic alloy itself, the two cannot be taken into account

Method used

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  • Halogen-free anti-flaming PC/ABS plastic alloy and preparation method thereof
  • Halogen-free anti-flaming PC/ABS plastic alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The halogen-free flame-retardant PC / ABS plastic alloy of this embodiment is mainly made of the following raw materials in parts by weight: 70 parts of polycarbonate, 30 parts of acrylonitrile-butadiene-styrene copolymer, ABS grafted horse 3.0 parts of anhydride copolymer compatibilizer, 2.0 parts of ethylene-methyl acrylate, 1.0 parts of graphene, 0.5 parts of polyvinylsilsesquioxane, 0.6 parts of polytetrafluoroethylene, potassium 3-benzenesulfonylbenzenesulfonate 0.05 parts, antioxidant 1010 0.5 parts, silicone lubricant 0.5 parts.

[0030] The preparation method of the halogen-free flame-retardant PC / ABS plastic alloy of the present embodiment comprises the following steps:

[0031] 1) get the graphene of 1.0 weight part, modify with silane coupling agent, obtain modified graphene;

[0032]2) get step 1) gained modified graphene, and 0.5 weight part of polyvinylsilsesquioxane, 0.6 weight part of polytetrafluoroethylene, 0.05 weight part of 3-benzenesulfonylbenzenesu...

experiment example 1

[0040] In this experimental example, the flame retardancy of the halogen-free flame-retardant PC / ABS plastic alloy products obtained in Examples 1-6 was tested, and the results are shown in Table 2.

[0041] Among them, the limiting oxygen index (LOI) is the lowest oxygen concentration that maintains the combustion of the sample in a specific experimental environment; it is tested by the method specified in the standard GB2406-93. Vertical burning test (UL 94) is tested according to the method specified in the standard GB / T2408-1996.

[0042] Table 2 embodiment 1-6 gained PC / ABS plastic alloy product flame retardant performance detection result

[0043] PC / ABS plastic alloy products

[0044] As can be seen from Table 2, the limited oxygen index of the PC / ABS plastic alloy products obtained in Examples 1-6 reaches more than 30vol%, and the vertical burning level reaches UL 94V-0, which shows that the PC / ABS plastic alloy of the present invention has significant resist...

experiment example 2

[0046] In this experimental example, the mechanical properties of the halogen-free flame-retardant PC / ABS plastic alloy products obtained in Examples 1-6 were tested, and the results are shown in Table 3.

[0047] Among them, impact strength and tensile strength are tested according to GB / T1043-93 and GB / T1040-92 standards respectively.

[0048] The mechanical performance detection result of the PC / ABS plastic alloy product of table 3 embodiment 1-6 gained

[0049] PC / ABS plastic alloy products

[0050] As can be seen from Table 3, the impact strength of the PC / ABS plastic alloy product obtained in Examples 1-6 is at 32kJ / m 2 Above, the tensile strength is above 51Mpa; combined with Table 2, it can be obtained that the PC / ABS plastic alloy of the present invention has both mechanical properties and flame-retardant properties.

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Abstract

The invention relates to a halogen-free anti-flaming PC / ABS plastic alloy and a preparation method thereof. The halogen-free anti-flaming PC / ABS plastic alloy is prepared by the following raw materials by weight: 65-75 parts of polycarbonate, 25-35 parts of an acrylonitrile-butadiene-styrol copolymer, 2-4 parts of a compatilizer, 1-3 parts of a flexibilizer, 0.5-2.0 parts of graphene, 0.4-1.0 part of polyvinyl silsesquioxane, 0.2-0.8 parts of polytetrafluoroethylene, and 0.02-0.10 parts of 3-potassium phenylsulphonyl benzene sulfonate. The PC / ABS plastic alloy uses four substances of the graphene, polyvinyl silsesquioxane, the polytetrafluoroethylene and 3-potassium phenylsulphonyl benzene sulfonate to retard the flaming synergistically. The total additive amount of an anti-flaming agent is reduced, the limited oxygen index is more than 30 vol% on the basis of guaranteeing the mechanical property of the plastic alloy, the vertical combustion level is up to UL 94 V-0, and the PC / ABS plastic alloy has the remarkable anti-flaming effect.

Description

technical field [0001] The invention belongs to the technical field of PC / ABS plastic alloys, in particular relates to a halogen-free flame-retardant PC / ABS plastic alloy, and also relates to a preparation method of the halogen-free flame-retardant PC / ABS plastic alloy. Background technique [0002] Polycarbonate (PC) is an amorphous, odorless, transparent thermoplastic amorphous engineering plastic, which has good impact resistance and dimensional stability, and can be used for a long time at -60 ~ 120 ° C; PC has good mechanical properties , but the fluidity is poor, the injection molding process is difficult and the processing performance is not very good; PC itself has a certain self-sufficiency, its oxygen index is about 26%, but it is still flammable, and it will drip hot melt when burning, causing Nearby materials catch fire. [0003] ABS (acrylonitrile-butadiene-styrene copolymer) resin is a graft copolymer of three monomers of acrylonitrile (AN), butadiene (BD) and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L27/18C08L23/08C08L83/07C08K9/06C08K3/04C08K5/42C08K5/134C08J3/22
CPCC08J3/226C08J2369/00C08J2469/00C08L69/00C08L2201/02C08L2201/08C08L2201/22C08L2205/025C08L2205/035C08L55/02C08L27/18C08L23/0869C08L83/04C08K9/06C08K3/04C08K5/42C08K5/1345
Inventor 魏科峰
Owner 汕头市忠诚行塑料环保科技有限公司
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