Further, the extent of rubber toughening was larger when fibres were present than when fibres were absent, provided the fibre matrix interface was strong. With regard to the role of fibre reinforcement, a strong fibre matrix interface was found to be essential for toughening. It was demonstrated that the embrittlement effects of a second rigid polymer phase can be mitigated by selectively adding rubber to that phase in the alloy or blend.
The results indicated that EPDM rubber was not as effective a toughening agent as was butadiene in the Acrylonitrile Butadiene Styrene (ABS) system, primarily due to the morphology of EPDM and its interface character with the nylon 6,6 or SAN matrix.
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J SS refers to the steady-state, or plateau value of the material R-curve and was therefore a measure of total toughness which included the additional component derived from crack extension. Attention was focused on fracture initiation toughness and fracture propagation toughness, measured through the parameters J IC and J SS, respectively. In order to study the effect of rubber location on fracture behaviour, the approach was to compatibilize EPDM with either the minor phase or the major phase component of the blend. EPDM rubber was chemically compatibilized with one of the matrix phases rather than grafted, as in the ABS.
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The compositions of the blends ranged from pure nylon 6,6 to pure SAN. Looking for information on VMware product compatibility by version See the Product Interoperability Matrix. Managing Director of Matrix Star Marketing Pte Ltd, a boutique sales, marketing and distribution company representing quality FMCG, beauty and OTC brands. Motrix Full-Featured Download Manager Zatiel 63.1K subscribers Join Subscribe 53 Share Save 1.5K views 8 months ago Motrix is a full-featured download manager that supports downloading HTTP. The rubber used was ethylene propylene diene monomer (EPDM) rubber and the results were compared to a previous study that used butadiene rubber. The role of rubber particle type, location and morphology on toughening in blends of nylon 6,6 with styrene acrylonitrile (SAN), with and without fibre reinforcements was examined in this study.
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