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Method for preparing halogen-free heat-and-flame-resistant ABS/PC (acrylonitrile butadiene styrene/polycarbonate) alloy

A heat-resistant and alloy technology, which is applied in the field of preparation of halogen-free heat-resistant and flame-retardant ABS and PC alloys, can solve problems such as poor mechanical properties, and achieve the effects of low cost, good flame-retardant effect, and easy processing

Active Publication Date: 2014-11-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Existing halogen-free flame-retardant PC / ABS alloys have problems such as poor mechanical properties

Method used

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  • Method for preparing halogen-free heat-and-flame-resistant ABS/PC (acrylonitrile butadiene styrene/polycarbonate) alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Phosphoric acid flame retardants include triphenyl phosphate (TPP), ammonium polyphosphate composite system (APP) and tetraphenylresorcinol-based diphosphate composite system (RDP), the ratio of TPP / APP / RDP is 40 / 40 / 20 (weight percent); the ratio of phosphoric acid flame retardant and aluminum hydroxide is 50 / 50 (weight percent); the grafting rate of maleic anhydride in the modified maleic anhydride grafted ABS is 1.5%.

[0023] The proportioning ratio of ABS / ABS powder / PC is 9 / 1 / 90, the addition amount is 80% (weight percentage), the addition amount of compatibilizer is 2% (weight percentage), the phosphoric acid flame retardant and aluminum hydroxide The proportioning ratio is 2 / 1, the addition amount is 15% (percentage by weight), and the addition amount of other auxiliary agents is 3%. After being fully mixed in a kneader, it is melt-extruded in an extruder, the extrusion temperature is 200° C., and the screw speed is 20 r / min. The analytical test results are list...

Embodiment 2

[0025] Phosphoric acid flame retardants include triphenyl phosphate (TPP), ammonium polyphosphate composite system (APP) and tetraphenylresorcinol-based diphosphate composite system (RDP), the ratio of TPP / APP / RDP is 35 / 35 / 30 (weight percent); the ratio of phosphoric acid flame retardant and aluminum hydroxide is 55 / 45 (weight percent); the grafting ratio of maleic anhydride in the modified maleic anhydride grafted ABS is 1.75%.

[0026] The proportioning ratio of ABS / ABS powder / PC is 9 / 1 / 90, the addition amount is 70% (weight percentage), the addition amount of compatibilizer is 2% (weight percentage), the phosphoric acid flame retardant and aluminum hydroxide The proportioning ratio is 2 / 1, the addition amount is 25% (percentage by weight), and the addition amount of other auxiliary agents is 3%. After fully mixing in the kneader, melt extrusion in the extruder, the extrusion temperature is 205°C, and the screw speed is 25r / min. The analytical test results are listed in Ta...

Embodiment 3

[0028] Phosphoric acid flame retardants include triphenyl phosphate (TPP), ammonium polyphosphate composite system (APP) and tetraphenylresorcinol-based diphosphate composite system (RDP). The ratio of TPP / APP / RDP is 25 / 35 / 40 (weight percent); the ratio of phosphoric acid flame retardant and aluminum hydroxide is 60 / 40 (weight percent); the grafting rate of maleic anhydride in the modified maleic anhydride grafted ABS is 2.0%.

[0029] The proportioning ratio of ABS / ABS powder / PC is 9 / 1 / 90, the addition amount is 60% (weight percentage), the addition amount of compatibilizer is 2% (weight percentage), the phosphoric acid flame retardant and aluminum hydroxide The proportioning ratio is 2 / 1, the addition amount is 35% (percentage by weight), and the addition amount of other auxiliary agents is 3%. After being fully mixed in a kneader, it is melt-extruded in an extruder, the extrusion temperature is 210° C., and the screw speed is 30 r / min. The analytical test results are list...

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Abstract

The invention relates to a method for preparing a halogen-free heat-and-flame-resistant ABS / PC (acrylonitrile butadiene styrene / polycarbonate) alloy, which adopts the following raw materials in percentage by weight: 45-89% of ABS / ABS powder / PC, 1-5% of modified maleic anhydride grafted ABS and 10-50% of phosphoric-acid composite flame retardant and aluminum hydroxide flame retardant system; the ratio of ABS / ABS powder / PC in percentage by weight is 9-35 / 1-15 / 90-50; the ratio of the phosphoric-acid composite flame retardant to the aluminum hydroxide is 100-50 / 0-50; and the extrusion temperature of an extruder is 200-250 DEG C, and the rotating speed of a screw is 20-60 r / min. The method disclosed by the invention is low in cost, easy to process and good in environmental protection and flame resistance; the oxygen index of products can reach 28.5%, and the flame retardant level reaches the level UL94V-0, so that the flame retardant effect is optimal, therefore, the method can be widely applied to the fields such as the automotive industry, household electrical appliances, communication equipment, office equipment and the like.

Description

Technical field: [0001] The invention relates to a preparation method of a halogen-free heat-resistant flame-retardant ABS and PC alloy. Background technique: [0002] CN200910190366.9 relates to a PC / ABS alloy and a preparation method thereof. The method includes S1, adding the halogen-free flame retardant, the flame retardant anti-dripping agent and the auxiliary agent together into a high-speed batch mixer, then dripping the melted halogen-free flame retardant synergist into the mixer, and stirring for the first time; S2. Add the baked PC and ABS, and then stir them together for a second time for later use; S3. Put the stirred mixture in a twin-screw machine to melt, extrude and granulate. The PC / ABS alloy made, including the following raw materials PC in parts by weight: 60-68; ABS: 12-18; halogen-free flame retardant 7-12; halogen-free flame retardant synergist 1-3; Drop agent 0.1~1; auxiliary agent 6~20. The PC / ABS alloy of the invention has a good flame-retardant e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/00C08K13/02C08K5/523C08K3/32C08K3/22B29C47/92B29C48/92
CPCB29C47/92B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 葛腾杰向明邹恩广马建英邱丽萍吴林美姜进宪安彦杰王熺王文燕王登飞张明强郭桂悦张德英佟华芳闫兵梁忠越王世华韩云燕
Owner PETROCHINA CO LTD