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Double network hydrogels (DN gels) are one of most extensively investigated high strength hydrogels. However, conventional DN gels are fully chemically cross-linked, which often suffer from severe softening phenomenon and are lack of self-healing properties. In the present work, fully physically cross-linked Agar/PAAm DN gels, consisting of physical agar gel as the first network and physical polyacrylamide...
Die-swell is an important parameter related to the melt elasticity during extrusion of polymeric melts, and the degree of swell is usually expressed by die-swell ratio (B). The die-swell ratio for polypropylene (PP) composites filled with aluminum hydroxide (Al(OH) 3 ) and magnesium hydroxide (Mg(OH) 2 ) was measured by means of a capillary rheometer under experimental conditions of...
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