EFFECT OF PLASTICIZER FILLER AND SOLVENT SWELL ON POLYURETHANE ELASTOMERS Kenya

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effect of plasticizer, filler and solvent swell on polyurethane elastomers Santosh K Gurunatha*, M. Rengasamyb and V. Sivasubramaniana# a Department of Chemical Engineering, National

Inspired by general filler effects, a strategy is proposed to remarkably enhance the mechanical properties of thermoplastic polyurethane (TPU) elastomers by designing the arrangement of hard/soft segments using

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Effects of Fillers on Polyurethane Resin-based Polyurethane

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Sep 10, 2008The results show that the polyurethane component ratios in cross-linked polymers, the types of filler, and the amount of powder added all affect the properties of the filled cross

The effect of polyurethane swelling on the dynamics of this elastomer macromolecules was also studied. The study [ 4 ] of the degradation of polymer films by

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Polymer–filler interactions and mechanical properties of a

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Feb 1, 20001.. IntroductionUntil recently it was considered undesirable to use fillers in polyurethane elastomers. As a rule, polyurethane macromolecules contain hard urethane

make inert elastomers swellable such as ethylene propylene rubbers (EPDM), hydro-genated nitrile rubbers (HNBR), and so on.1–3 Swelling elastomer is sometimes also treated as a gel,

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Synergistic enhancement of mechanical properties

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Inorganic filler-filled polyurethane elastomer (PUE) is faced with problems such as cracking and functional structure failure under high-speed impact, which limits its application in

Feb 1, 2000The elastomer was characterized as a polyurethane based on 4,4-diphenylmethane diisocyanate (MDI), a low molecular weight polyester derived from adipic acid and 1,4-butanediol.

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Effect of a Plasticizer on the Properties of Elastomers Based

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Abstract Urethane-containing elastomers based on polyesters with various urethane–hydroxyl hard blocks were studied. The strength and glass transition point of the elastomers with urethane–hydroxyl hard blocks can differ significantly depending on the extent of the phase segregation. Di(2-ethylhexyl) sebacate and tri-n-butyl phosphate efficiently

The prepared polyurethane elastomer using the combination of 50/50 IPDI/N100 incorporated BuNENA as a plasticizer showed 96% elongation at the break and 0.16 MPa tensile strength. and energetic plasticizers. To remove the remaining solvent and dissolved air from the synthesized PPG-GAP-PPG triblock copolymer, as well as completely dry it

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Do additives improve the performance of polyurethane elastomers?
Incorporation of additives (plasticizer and filler) improves the performance characteristics of polyurethane elastomers. However, the degree of improvement varies based on the nature of reactants involved. Content may be subject to copyright. Influence of kaolin and dolomite as filler on bond strength of polyurethane coated reinforcement concrete
Why do elastomers have active fillers?
The addition of active fillers in an elastomer usually leads to an improvement in the mechanical properties such as the elastic modulus and the rupture properties. Filled rubbers are also characterized by two specific behaviors related to energy dissipation known as the Payne and the Mullins effects.
How do filler elastomers affect mechanical properties?
The morphology of the filler particles, their volume fraction and state of dispersion in the host medium as well as their surface characteristics and the chemically active sites that determine the filler–filler and polymer–filler interactions were shown to strongly affect the mechanical properties of the filled elastomers.
Do fillers affect the reaction between polyol and isocyanate?
Most importantly, attention must be paid to the tendency of the addition of fillers to the PU matrix affecting the reaction between the polyol and the isocyanate . have widely studied the use of several fillers to achieve improved properties in polyurethane foam (PUF).
Which polyurethane elastomers are better?
Among the polyurethane elastomers prepared, the product obtained from prepolymer C with curative X3 exhibits better strength properties and solvent resistant characteristics than those from other products. Incorporation of additives (plasticizer and filler) improves the performance characteristics of polyurethane elastomers.
What is the effect of filler on elastomeric composites?
The main effect is an increase in the composite stiffness that first involves the inclusion of rigid particles in the soft polymeric medium. This effect depends on the volume fraction and on the aspect ratio of filler according to the Guth equation in the case of filled elastomeric composites [ 11 ].