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Halogen-free flame retardant PC/ABS alloy and preparation method thereof

A technology of alloy and flame retardant, which is applied in the field of halogen-free flame-retardant PC/ABS alloy and its preparation, can solve the problem of low mechanical properties and achieve the effect of excellent mechanical properties and moderate cost

Inactive Publication Date: 2009-04-29
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous improvement of people's requirements for environmental protection, halogen-free flame-retardant PC / ABS alloy materials have been developed, such as a PC / ABS alloy disclosed in Chinese patent application 200610123184.6, but the problem of low mechanical properties exists

Method used

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  • Halogen-free flame retardant PC/ABS alloy and preparation method thereof
  • Halogen-free flame retardant PC/ABS alloy and preparation method thereof
  • Halogen-free flame retardant PC/ABS alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) Preparation of PC / phosphate organic matter masterbatch

[0034] Mix PC and organic phosphates at a ratio of 18.60% by weight of organic phosphates, and then add 0.1 part of antioxidant 1010 and 0.2 part of antioxidant 802 to every 100 parts of PC / organic phosphate mixture After mixing evenly in the mixer, add it to the twin-screw extruder, melt and mix it to make PC / phosphate organic masterbatch, the temperature of the twin-screw extruder is: the temperature of the first zone: 190 ° C, the temperature of the second zone: 210 ° C , The temperature in the third zone: 225°C, the temperature in the fourth zone: 240°C, the temperature in the fifth zone: 230°C, the temperature in the sixth zone: 220°C, the twin-screw speed is 280r / min, and the residence time is 1-2 minutes;

[0035] 2) Preparation of ABS / nano-inorganic filler masterbatch

[0036] 1. ABS and nano-inorganic fillers are mixed according to the ratio of 1.96% by weight of nano-inorganic fillers, and then 0.25 ...

Embodiment 2

[0042] 1) Preparation of PC / phosphate organic matter masterbatch

[0043] Mix PC and organic phosphates at a ratio of 13.46% by weight of organic phosphates, and then add 0.1 part of antioxidant 1010 and 0.2 part of antioxidant 802 to every 100 parts of PC / organic phosphate mixture After mixing evenly in the mixer, add it to the twin-screw extruder, melt and mix to make PC / phosphoric acid ester organic masterbatch, the temperature of the twin-screw extruder is: the temperature of the first zone: 210°C, the temperature of the second zone: 225°C , The temperature in the third zone: 240°C, the temperature in the fourth zone: 255°C, the temperature in the fifth zone: 240°C, the temperature in the sixth zone: 230°C, the twin-screw speed is 400r / min, and the residence time is 1-2 minutes;

[0044] 2) Preparation of ABS / nano-inorganic filler masterbatch

[0045] 1. ABS and nano-inorganic fillers are mixed according to the ratio of 7.41% by weight of nano-inorganic fillers, and then ...

Embodiment 3

[0051] 1) Preparation of PC / phosphate organic matter masterbatch

[0052] Mix PC and organic phosphates at a ratio of 15.73% by weight of organic phosphates, and then add 0.1 part of antioxidant 1010 and 0.2 part of antioxidant 802 to every 100 parts of PC / organic phosphate mixture .After mixing evenly in the mixer, add it to the twin-screw, melt and mix to make PC / phosphate organic masterbatch, the temperature of the twin-screw extruder is: the temperature of the first zone: 200°C, the temperature of the second zone: 220°C, and the third zone Temperature: 235°C, temperature in zone four: 245°C, temperature in zone five: 235°C, temperature in zone six: 225°C, twin-screw speed 340r / min, residence time 1-2 minutes;

[0053] 2) Preparation of ABS / nano-inorganic filler masterbatch

[0054] 1. ABS and nano-inorganic fillers are mixed according to the ratio of 2.44% by weight of nano-inorganic fillers, and then 0.25 parts of antioxidant 1010 and 0.5 parts of antioxidant 802 are add...

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Abstract

The present invention discloses a halogen-free anti-flaming PC / ABS alloy and a method for preparing the same, which belongs to the technical field of high molecular material. The prior halogen-free anti-flaming PC / ABS alloy has poor mechanical property and other properties. The PC / ABS alloy comprises the following components in weight percentage: 70 to 90 portions of PC, 5 to 35 portions of ABS, 3 to 7 portions of compatilizer, 3 to 8 portions of plasticizer, 9 to 16 portions of fire retardant phosphate organic matters, 0.3 to 1.5 portions of PTFE, 2 to 8 portions of silicone resin, 0.4 to 1.5 portions of nanometer inorganic filler, and 0.1 to 0.5 portion of antioxidant. By preparing PC / phosphate organic master batch and preparing ABS / nanometer inorganic filler master batch by an 'in situ bubble stretching method', both master batches are mixed with other components to obtain the halogen anti-flaming PC / ABS alloy. The PC / ABS alloy has high mechanical property and moderate cost.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant PC / ABS alloy and a preparation method thereof. The alloy of the invention can be widely used in industries such as automobiles, electronic appliances, machinery and the like which have high requirements on environmental protection. Background technique [0002] Polycarbonate (PC) is an increasingly widely used engineering plastic. It has comprehensive and stable mechanical properties, thermal properties and electrical properties. At the same time, it has excellent properties such as impact resistance, dimensional stability, heat resistance, and transparency. Its output Second only to nylon (PA). However, some of its shortcomings, such as difficult processing, large residual stress of products, easy stress cracking, sensitivity to notch, poor solvent resistance and poor wear resistance, restrict its application in many fields. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K13/02C08J3/22B29B9/00B29C47/92C08L55/02C08K5/523C08K3/34C08K3/22B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 刘颖吴大鸣许红陈卫红王彦飞
Owner BEIJING UNIV OF CHEM TECH
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