Characterization of acrylonitrile–butadiene–styrene (ABS) copolymer blends with foreign polymers using fracture mechanism maps

Abstract

To commercially produce consumer products using engineering polymers, it is very important to control the physical properties of the material. However, quality control of the material is not easy because of many reasons such as cost reduction, cleaning issues, the use of scraps, etc. In many cases, even a small amount of foreign polymers can lead to product failures; however, analyzing such foreign polymers is difficult by using conventional analytical techniques. This article introduces a methodology to evaluate the durability of acrylonitrile–butadiene–styrene copolymers containing foreign polymers by using fracture mechanism maps (FMMs). In addition, the importance of the ductile‐to‐brittle transition temperature (DBTT) as a quantitative tool is discussed. In this article, the measurement of DBTT was proposed as a direct tool of characterizing polymer blends with similar chemical structure, and the concept of a FMM was applied as a qualitative tool to initiate the detailed investigation of fractures, as well as a quality control tool to sustain the fracture toughness of the final products. POLYM. ENG. SCI., 54:2791–2798, 2014. © 2013 Society of Plastics Engineers

The potential use of natural expanded perlite as a flame retardant additive for acrylonitrile‐butadiene‐styrene based composites

“…Figure 3 shows the FTIR spectra of neat ABS and MAH‐g‐ABS. The neat ABS spectra displayed the characteristic bands of C‐H stretching of CH and CH 2 of aliphatic and phenyl groups between 2750 and 3100 cm −1 , CN stretching of acrylonitrile group at 2238 cm −1 , –C=C stretching of butadiene group at 1602 cm −1 , C–H bending of styrene group at 1400–1500 cm −1 , and C=C stretching and bending of =C–H groups in phenyl ring between 650 and 800 cm −1 53 . Compared to the FTIR of neat ABS, a new absorbance peak was observed at 1780 cm −1 corresponding to the C=O stretching vibration of the anhydride group of MAH‐g‐ABS in the FTIR spectrum which indicates the successful grafting of MAH onto ABS.…”

“…The neat ABS spectra displayed the characteristic bands of C-H stretching of CH and CH 2 of aliphatic and phenyl groups between 2750 and 3100 cm À1 , CN stretching of acrylonitrile group at 2238 cm À1 , -C=C stretching of butadiene group at 1602 cm À1 , C-H bending of styrene group at 1400-1500 cm À1 , and C=C stretching and bending of =C-H groups in phenyl ring between 650 and 800 cm À1 . 53 Compared to the FTIR of neat ABS, a new absorbance peak was observed at 1780 cm À1 corresponding to the C=O stretching vibration of the anhydride group of MAH-g-ABS in the FTIR spectrum which indicates the successful grafting of MAH onto ABS. During the grafting, nitrile groups on the ABS are unaffected, so the absorbance of stretching vibration of carbonyl and nitrile groups located at 1780 and 2238 cm À1 , respectively, can be used to determine the degree of grafting.…”

Effect of poly(ethylene‐co‐vinyl acetate) additive on mechanical properties of maleic anhydride‐grafted acrylonitrile butadiene styrene for coating applications

“…. The pristine ABS showed all the characteristic bands at 3,100–2,850 cm −1 (C‐H stretching of CH, CH 2 , and phenyl ring), 2,238 cm −1 (‐CN stretching in acrylonitrile), 1,603 cm −1 (‐C=C stretching in butadiene), 1,500–1,400 cm −1 (‐C‐H bending in phenyl ring of styrene), and 800–650 cm −1 (trans‐1‐4 C=C stretching, bending of = C‐H in phenyl) . The IR spectrum of pristine EVA showed the characteristic bands at 3,000–2,800 cm −1 (C‐H stretching of CH 2 and CH 3 ), 1,733 cm −1 (C=O stretching), 1,371 cm −1 (C‐H bending), 1,235 and 1,019 cm −1 (C‐OCO and O‐CO stretching), and 720 cm −1 (C‐H rocking) .…”

Interfacial stability of compatibilizers dictated by the thermodynamic interactions in an immiscible system and the effects of micelles on the crystallization of PLLA

“…The peaks of unsaturated trans C═C (vinyl) stretching in polybutadiene at 969 cm −1 and the absorbance band corresponding to the 1, 2‐butadiene terminal vinyl C─H band in polybutadiene are also observed in three kinds of ABS. Two typical peaks at 1146 cm −1 (C─O stretching vibration) and 1731 cm −1 (C═O carbonyl stretching vibration) and a series of peaks at 810 cm −1 (CH 2 rocking vibrations), 1387 cm −1 (symmetrical bending vibration [ δ S ] of ─CH 3 ), 2950 cm −1 (symmetrical stretching mode C─H from methyl groups) and 2993 cm −1 (asymmetrical stretching mode C─H from methyl groups) can be observed in TR‐558A, compared to the other two ABS materials, that is, D‐100 and XR‐401 . The above FTIR spectra show that XR‐401 and D‐100 are composed of styrene (St), acrylonitrile (AN), and butadiene (BD).…”