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A solvent-resistant, high-toughness, flame-retardant pc/abs composition

A technology of high toughness and composition, applied in the field of flame retardant PC/ABS composition, high toughness and solvent resistance, can solve problems such as unfavorable material properties, negative effects on material toughness and solvent resistance, and avoid small molecular substances. Precipitation, low cost, and the effect of improving flame retardant performance

Active Publication Date: 2019-10-25
TIANJIN KINGFA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the introduction of dispersants or other additives during the synthesis of ABS and impact modifiers, after the flame-retardant PC / ABS composition is made, due to the characteristics of the PC molecular structure, these small molecules are detrimental to the material properties and are harmful to the material. Toughness and solvent resistance are negatively affected

Method used

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  • A solvent-resistant, high-toughness, flame-retardant pc/abs composition
  • A solvent-resistant, high-toughness, flame-retardant pc/abs composition
  • A solvent-resistant, high-toughness, flame-retardant pc/abs composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A solvent-resistant, high-toughness, flame-retardant PC / ABS composition, the composition is made of raw materials comprising the following parts by weight: 59.3 parts of polycarbonate, 14 parts of BDP, 25 parts of ABS-toughening agent one-step material, B 2 parts of complexes of diaminetetraacetic acid and aluminum. The ABS-toughening agent one-step material is made of the following raw materials in parts by weight: 70 parts of ABS and 30 parts of silicon-based toughening agent.

[0032] The number average molecular weight of the polycarbonate is 23000. The ABS is the bulk method ABS.

[0033] Described ABS-toughening agent one-step material is made by the method comprising the following steps:

[0034] (1) Put the ABS and the toughening agent into the high mixer and mix for 3 minutes to obtain the premix;

[0035] (2) Put the premix into the main feeding port of the twin-screw extruder, extrude, inject liquid water into the third section and the fifth section of the...

Embodiment 2

[0039] A solvent-resistant, high-toughness, flame-retardant PC / ABS composition, which is made of the following raw materials in parts by weight: 72.8 parts of polycarbonate, 10 parts of BDP, 15 parts of ABS-toughener one-step material 1.5 parts of complexes of amine tetraacetic acid and aluminum. The ABS-toughening agent one-step material is made of the following raw materials in parts by weight: 70 parts of ABS and 30 parts of silicon-based toughening agent.

[0040] The number average molecular weight of the polycarbonate is 23000. The ABS is the bulk method ABS.

[0041] Described ABS-toughening agent one-step material is made by the method comprising the following steps:

[0042] (1) Put the ABS and the toughening agent into the high mixer and mix for 3 minutes to obtain the premix;

[0043] (2) Put the premix into the main feeding port of the twin-screw extruder, extrude, inject liquid water into the third section and the fifth section of the screw barrel of the twin-s...

Embodiment 3

[0047] A solvent-resistant, high-toughness, flame-retardant PC / ABS composition, the composition is made of raw materials comprising the following parts by weight: 80.3 parts of polycarbonate, 8 parts of BDP, 10 parts of ABS-toughener one-step material, B 1 part of complex compound of diaminetetraacetic acid and aluminum. The ABS-toughening agent one-step material is made of the following raw materials in parts by weight: 70 parts of ABS and 30 parts of silicon-based toughening agent.

[0048] The number average molecular weight of the polycarbonate is 23000. The ABS is the bulk method ABS.

[0049] Described ABS-toughening agent one-step material is made by the method comprising the following steps:

[0050] (1) Put the ABS and the toughening agent into the high mixer and mix for 3 minutes to obtain the premix;

[0051] (2) Put the premix into the main feeding port of the twin-screw extruder, extrude, inject liquid water into the third section and the fifth section of the s...

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Abstract

The invention provides a preparation method for a solvent-resisting, high-toughness and flame-retardant PC (polycarbonate) / ABS (acrylonitrile butadiene styrene) compound. The method comprises the following steps: putting PC, a phosphorus-containing flame-retardant agent and an ABS-flexibilizer one-step material and transition metal complex into a high-speed mixer for mixing; and putting the mixture into a double-screw extruder for extruding, thereby acquiring the solvent-resisting, high-toughness and flame-retardant PC / ABS compound. The solvent-resisting, high-toughness and flame-retardant PC / ABS compound provided by the invention has the advantages that the one-step material is simple and is easily acquired; the preparation process is simple; the cost is low; a high-gloss, high-fluidity and high-toughness material is prepared; and the method can be widely applied to the industries of automobiles, refrigerators and TV sets.

Description

technical field [0001] The invention belongs to the technical field of polymer modification, and in particular relates to a solvent-resistant, high-toughness, flame-retardant PC / ABS composition. Background technique [0002] Polycarbonate (PC) is a thermoplastic engineering plastic with excellent physical and mechanical properties. It has excellent transparency and flame retardancy, and has a wide range of applications; Stress cracking occurs, poor solvent resistance, and easy to decompose when exposed to water at high temperatures, which limit its application to a certain extent. Generally, through the modification technology, selecting the appropriate type of acrylonitrile-butadiene-styrene graft copolymer (ABS) can reduce the internal stress of the material and improve the toughness of the material; add an impact modifier to improve the toughness of the material, and Improve the compatibility between the PC phase and ABS; the addition of transition metal complexes can st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/00C08K5/17B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704C08L69/00C08L2201/02C08L2205/03C08L2207/53C08L55/02C08L51/003C08K5/0091
Inventor 陈勇文岑茵佟伟艾军伟李明昆何继辉张现军陶四平
Owner TIANJIN KINGFA NEW MATERIAL
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