Resol was solution blended with vinyl acetate-2-ethylhexylacrylate (VAc-EHA) resin in aqueous medium, in varying weight fractions, with hexamethoxymethylmelamine (HMMM) as crosslinker, and data was compared with a control. The present work was aimed at getting an optimum combination of tensile strength, dynamic mechanical strength, impact strength, and toughness by synthesis of an interpenetrating network (IPN) of the resins. The control gave a semi-IPN system, in which the resol crosslinked, while the acrylic did not, whereas the blend, where HMMM was the crosslinker, gave a full IPN system. Full IPNs of the resol/VAc-EHA system had higher moduli and ultimate tensile strength than the semi-IPNs. Dynamic mechanical study showed that full IPN systems have higher T g values than semi-IPN systems. The impact strength increases with increasing proportions of VAc-EHA copolymer.

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D BASU

A BANERJEE

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Journal of Applied Polymer Science

A study was done of jute composite using a polymer matrix of epoxidized Novolac resin (ENR), diglycidyl ether of bisphenol A (DGEBA)-based epoxy, and their blends with different weight percentages of the resins. It was found that on blending ENR with DGEBA, the storage modulii at room temperature are enhanced by about 100% or more in the case of 30 and 40% ENR-containing matrices, whereas the enhancement in the case of 20 and 12% ENR-containing matrices is only 50% that of the pure matrix. It was also observed that the tan δ peak heights of the composites containing 30 and 40% ENR are closer to that of 20% ENR-containing composite. The probable explanation drawn on the basis of experimental findings of DMA and mechanical analysis is that by blending ENR with DGEBA epoxy it is possible to manufacture jute composites with increased stiffness without sacrificing their ductility.

Mechanical and dynamic mechanical properties of jute fibers-novolac-epoxy composite laminates

Advanced Materials

Masthead: (Adv. Mater. 32/2017)

Interdependence between the curing, structure, and the mechanical properties of phenolic resins

Proceedings of 3rd International Conference on Adhesive Joining and Coating Technology in Electronics Manufacturing 1998 (Cat No 98EX180) ADES-98

Proceedings of 3rd International Conference on Adhesive Joining and Coating Technology in Electronics Manufacturing 1998 (Cat. No.98EX180)

Minerals Engineering

Recent mineral processing publications

Mechanical and dynamic mechanical studies of resol/vinyl acetate-2-ethylhexylacrylate/hexamethoxymethylmelamine interpenetrating network systems

Journal	Data powered by TypesetJournal of Applied Polymer Science
Publisher	Data powered by TypesetWILEY-BLACKWELL
ISSN	0021-8995