Application of styrene-acrylonitrile random copolymer-polyarylate block copolymer as reactive compatibilizer for polyamide and acrylonitrile-butadiene-styrene blends

Abstract Acrylonitrile-butadiene-styrene (ABS) graft copolymers were synthesized via seeded emulsion polymerization techniques by grafting styrene (St) and acrylonitrile (AN) on polybutadiene (PB) particles. Poly (methyl methacrylate) (PMMA)/styrene-acrylonitrile (SAN)/ABS blends were prepared by melt blending ABS graft copolymers with PMMA and SAN resins. The properties, morphology and grafted chains behaviors of PMMA/SAN/ABS blends were investigated. The results showed that with the increase of the ratio of PMMA/SAN, the toughness of PMMA/SAN/ABS blends slightly decreased, the transmittance first increased and then decreased, and tensile strength was not dependent on the ratio of PMMA/SAN. The evolution of impact strength of the blends was similar with the tendency of grafted degree (GD) with the increase of cumene hydroperoxide (CHP) and tert-dodecyl mercaptan (TDDM). From transmission electron microscopy (TEM), it was found that ABS graft copolymers were uniformly dispersed in PMMA/SAN matrix.

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Structure and properties of heat-resistant ABS resins innovated via MSAMI random copolymer

Journal of Thermoplastic Composite Materials ◽

10.1177/08927057211044191 ◽

2021 ◽

pp. 089270572110441

Author(s):

BY Hou ◽

L Ren ◽

YN Sun ◽

MY Zhang ◽

HX Zhang

Keyword(s):

Mechanical Properties ◽

Heat Resistance ◽

Acrylonitrile Butadiene Styrene ◽

Random Copolymer ◽

Softening Temperature ◽

Fracture Morphology ◽

Structure And Properties ◽

Heat Resistant ◽

Abs Resin ◽

Butadiene Styrene

This work proposed an efficient method to synthesize acrylonitrile-butadiene-styrene (ABS) copolymer and α-Methylstyrene (α-MSt)/N-phenylmaleimide (NPMI)/Acrylonitrile (AN) (MSAMI) random copolymer via emulsion polymerization, aiming to combine the excellent heat resistance of MSAMI and numerous advantages of ABS resin including mechanical properties, processing and recyclability. The effects of the MSAMI content and α-MSt/AN ratio on the thermal performance, mechanical properties and the morphology of heat-resistant ABS were investigated by FITR, dynamic mechanical analyses (DMA), Vicat Softening Temperature (VST), Thermogravimetric Analysis (TGA) and Scanning Electron Microscope (SEM). As a result, the heat-resistant of ABS resin was obviously enhanced by MSAMI, and its glass transition temperature (Tg) could be extended with the increase of NPMI content. The Tg could reach 173°C when NPMI content was 20% at the same trend as the VST. Synthetically, the contradiction between the heat resistance and mechanical properties of ABS resin reached a good balance when the NPMI content was 15% and α-MSt/AN ratio was 69/31. In SEM, the fracture morphology of the heat-resistant ABS resin was gradually tended to be smooth with the increase of the NPMI content. Therefore, the MSAMI random copolymer was successful prepared, which provided insight for the synthesis of heat-resistant modifiers and promoted the potential application of heat-resistant modifiers in automobiles and aircraft.

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Preparation and Characterization of Wood-Plastic Nanocomposites Based on Acrylonitrile-Butadiene-Styrene

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19326 ◽

2021 ◽

Vol 21 (9) ◽

pp. 4840-4845

Author(s):

Guixin Zhang ◽

Yanyan Zhang ◽

Jun Yang ◽

Shijuan Li ◽

Weihong Guo

Keyword(s):

Mechanical Properties ◽

Interfacial Adhesion ◽

Flexural Modulus ◽

Acrylonitrile Butadiene Styrene ◽

High Water ◽

Abs Resin ◽

Reactive Compatibilizer ◽

Butadiene Styrene

The new wood-plastic nanocomposites (WPC) based on acrylonitrile-butadiene-styrene (ABS) resin was successfully blended with ABS and poplar flour (PF) through a HAAKE rheomix. The mechanical properties of nanocomposites, except for flexural modulus, were reduced after increasing the PF content. SEM photos show the reduction resulting from weak interfacial adhesion between the PF phase and ABS phase. Higher PF content leads to a low thermal stability and a high water absorption ratio. Different coupling agents (CA) were employed to improve the compatibility between PF and ABS. The results suggest that ABS-g-MAH is more effective than POE-g-MAH, EVA and SEBS. Maleic anhydride (MA) was blended in situ with PF and ABS as the reactive compatibilizer and mechanical properties of nanocomposites were improved except impact strength.

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