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Low odor PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene) alloy material and preparation method thereof

An alloy material, low-odor technology, applied in the field of modified polymer materials, can solve problems such as unpleasantness, affecting in-vehicle experience and environmental health, achieving low odor, reducing the use of toughening agents and compatibilizers, and high toughness. Effect

Inactive Publication Date: 2017-06-20
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to high shear and high temperature during processing, PC / ABS materials are prone to degradation of polymer chains and small molecular additives in the material, thus introducing low-volatility small molecular compounds into the alloy material. During downstream applications, especially when used as automotive interior parts, it will produce unpleasant odors, which will seriously affect the in-car experience and environmental health

Method used

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  • Low odor PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene) alloy material and preparation method thereof
  • Low odor PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene) alloy material and preparation method thereof
  • Low odor PC (polycarbonate)/ABS (acrylonitrile-butadiene-styrene) alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Polycarbonate (PC2805) 73.8wt%, polyacrylonitrile resin (SAN) 15wt% (Zhenzhou Chimei), styrene-butadiene rubber (SBR) 5wt% (Yueyang Petrochemical), toughening agent (EM500) 2wt% (LG Chemical ), dispersant (high molecular weight methyl siloxane (4-7081, Dow Corning)) 1wt%, processing aid (phosphite antioxidant S9228) 0.2wt%, join in high-speed mixer and mix, mixing temperature Not higher than 50°C, the stirring speed is 300r / min, and the mixing time is 15min; from the main feeding port of the twin-screw extruder, add 2.5wt% zeolite and 0.5wt% sodium oxalate by metering, and mix thoroughly from the twin-screw extruder The side feed port of the screw extruder is added, and the twin-screw extruder is melted and blended, cooled and granulated to obtain a low-odor modified PC / ABS alloy material. The conditions of the melt blended are preferably the temperature of each heating section Between 230 and 260°C, the screw speed of the host machine is 300 to 450r / min. The propertie...

Embodiment 2

[0032] Polycarbonate (PC2805) 73.3wt%, polyacrylonitrile resin (SAN) 15wt% (Zhenzhou Chimei), styrene-butadiene rubber (SBR) 5wt% (Yueyang Petrochemical), toughening agent (EM500) 2wt% (LG Chemical ), dispersant (high molecular weight methyl siloxane (4-7081, Dow Corning)) 1wt%, processing aid (phosphite antioxidant S9228) 0.2wt%, join in high-speed mixer and mix, mixing temperature Not higher than 50°C, the stirring speed is 300r / min, and the mixing time is 15min; from the main feeding port of the twin-screw extruder, add 2.5wt% zeolite and 1wt% sodium oxalate, and mix them thoroughly from the twin-screw extruder The side feed port of the extruder is added, melted and blended through the twin-screw extruder, cooled and granulated to obtain a low-odor modified PC / ABS alloy material, and the conditions of the melt blended are preferably that the temperature of each heating section is between Between 230 and 260°C, the screw speed of the host machine is 300 to 450r / min. The pro...

Embodiment 3

[0034] Polycarbonate (PC2805) 72.8wt%, polyacrylonitrile resin (SAN) 15wt% (Zhenzhou Chimei), styrene-butadiene rubber (SBR) 5wt% (Yueyang Petrochemical), toughening agent (EM500) 2wt% (LG Chemical ), dispersant (high molecular weight methyl siloxane (4-7081, Dow Corning)) 2wt%, processing aid (phosphite antioxidant S9228) 0.2wt%, join in high-speed mixer and mix, mixing temperature Not higher than 50°C, the stirring speed is 300r / min, and the mixing time is 15min; from the main feeding port of the twin-screw extruder, add 2.5wt% zeolite and 0.5wt% sodium oxalate by metering, and mix thoroughly from the twin-screw extruder The side feed port of the screw extruder is added, and the twin-screw extruder is melted and blended, cooled and granulated to obtain a low-odor modified PC / ABS alloy material. The conditions of the melt blended are preferably the temperature of each heating section Between 230 and 260°C, the screw speed of the host machine is 300 to 450r / min. The propertie...

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Abstract

The invention belongs to the technical field of modified polymer materials, and discloses a low-odor PC / ABS alloy material and a preparation method thereof. The low-odor PC / ABS alloy material of the present invention comprises the following components in mass percentage: 62.7-81.4% of polycarbonate; 10-20% of polyacrylonitrile resin; 3-8% of styrene-butadiene rubber; 2-3% of toughening agent ; Zeolite 2-3%; Odor release agent 0.5-1%; Dispersant 1-2%; Processing aid 0.1-0.3%. The low-odor modified PC / ABS alloy material of the present invention has the characteristics of high modulus, high flow, high strength, high toughness, low odor, etc., and is especially suitable for manufacturing automotive interior parts, including eyeglass cases, decorative strips, central control Taiwan and so on. The present invention selects SAN and SBR blends as the rubber system, high molecular weight silicone compounds as the lubricant, and a compound system of zeolite and sodium oxalate to synergistically realize the low odor of the PC / ABS alloy material.

Description

technical field [0001] The invention belongs to the technical field of modified polymer materials, in particular to a low-odor PC / ABS alloy material and a preparation method thereof. Background technique [0002] PC / ABS material is a thermoplastic polymer alloy material with very balanced processing performance and mechanical properties. This material has been widely used in the fields of electronics, automobile manufacturing and household appliances. However, due to high shear and high temperature during processing, PC / ABS materials are prone to degradation of polymer chains and small molecular additives in the material, thus introducing low-volatility small molecular compounds into the alloy material. In the downstream application process, especially when used as an automotive interior part, it will produce unpleasant odors, which will seriously affect the in-car experience and environmental health. With the continuous improvement of people's requirements for the surround...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L33/20C08L9/06C08L51/04C08L83/04C08K3/34C08K5/098
CPCC08L69/00C08L2205/035C08L2205/06C08L2207/53
Inventor 郝源增邓爵安郝建鑫钱进明侯智谋
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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