Influence of viscosity and capillary force on the relationship between crack toughness and crack velocity for an acrylonitrile-butadiene-styrene plastic in environmental stress cracking liquids

1981 ◽  
Vol 21 (4) ◽  
pp. 218-222 ◽  
Author(s):  
R. P. Kambour ◽  
A. F. Yee
Keyword(s):  
Environmental Stress ◽  
Capillary Force ◽  
Crack Velocity ◽  
Acrylonitrile Butadiene Styrene ◽  
Stress Cracking ◽  
Environmental Stress Cracking ◽  
The Relationship ◽  
Butadiene Styrene

Environmental stress cracking of poly(acrylonitrile-butadiene-styrene)

1999 ◽  
Vol 39 (2) ◽  
pp. 268-273 ◽  
Author(s):  
Takafumi Kawaguchi ◽  
Hiroyuki Nishimura ◽  
Fumiaki Miwa ◽  
Kazuhiro Abe ◽  
Takashi Kuriyama ◽  
...  
Keyword(s):  
Environmental Stress ◽  
Acrylonitrile Butadiene Styrene ◽  
Stress Cracking ◽  
Environmental Stress Cracking ◽  
Poly Acrylonitrile ◽  
Butadiene Styrene

The Relationship Between Morphology and Esc in Thermoplastic Toughened Phenolics

1993 ◽  
Vol 305 ◽  
Author(s):  
A. R. Eccott ◽  
J. C. Arnold ◽  
D. H. Isaac
Keyword(s):  
Environmental Stress ◽  
Optical Microscopy ◽  
Large Scale ◽  
Small Scale ◽  
Scale Morphology ◽  
Interpenetrating Network ◽  
Stress Cracking ◽  
Environmental Stress Cracking ◽  
Bend Tests ◽  
The Relationship

AbstractA detailed investigation has been performed to relate the environmental stress cracking (ESC) behaviour of thermoplastic toughened phenolic materials to their morphology. Within the range of added thermoplastic studied (0 to 35%), two scales of morphology were seen to occur. In addition to a small scale interpenetrating network, there exists a larger scale morphology formed from “seas” of excess and immiscible thermoplastic. The large scale morphology was studied by performing interference contrast optical microscopy on samples etched with permanganate. A good correlation was obtained between the amount of thermoplastic in the immiscible regions and the overall fraction of thermoplastic in the sample.Etched samples were subject to ESC via bend tests in methanol and the effects of the morphology on the crack behaviour were observed microscopically while samples were still in the bent condition. It was evident that the large scale morphology was responsible for deflecting microcracks so that they preferentially grew along the interface between the immiscible thermoplastic and well mixed regions.

scholarly journals Difference in polypropylene fragmentation mechanism between marine and terrestrial regions

2021 ◽  
Vol 3 (9) ◽  
Author(s):  
Hisayuki Nakatani ◽  
Takuya Muraoka ◽  
Yuina Ohshima ◽  
Suguru Motokucho
Keyword(s):  
Environmental Stress ◽  
Advanced Oxidation Process ◽  
List Type ◽  
Patch Structure ◽  
Stress Cracking ◽  
Fragmentation Mechanisms ◽  
Environmental Stress Cracking ◽  
Speed Up ◽  
Degradation Time ◽  
Delamination Behavior

AbstractTwo kinds of marine polypropylene (M1-PP and M2-PP) and one land PP (L-PP) samples were collected from two beaches and land in Japan, respectively, to study the fragmentation mechanisms. Delamination was observed on both M1-PP and M2-PP surfaces. Moreover, there was no delamination but an abrasion patch structure on the surface of L-PP. The delamination was studied using an advanced oxidation process-degraded PP as the marine PP model. The number and shape of cracks varied with an increase in degradation time. The fluctuations in the values and ratios of the carbonyl index as well as the weight change ratio were due to repeated oxidation and delamination. We found that the delamination behavior depends on the oxidation state. Poly(oxyethylene)8 octylphenyl ether (POE8) surfactant treatment caused the delamination to speed up, which is a typical characteristic of polyolefin environmental stress cracking (ESC). These results reveal that delamination is based on ESC.Article Highlights Two kinds of marine and one land polypropylene (PP) samples were collected from two beaches and land, respectively, to study the fragmentation mechanisms. Delamination was observed on both of marine PP surfaces. Moreover, there was no delamination but an abrasion patch structure on the land PP surface. We found that the delamination was based on environmental stress cracking mechanism by employing a marine PP model.

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