Preparation of a novel polyurethane network based
The results of the swelling test and DSC analysis demonstrated n‐butyl nitroxyethyl nitramine (BuNENA) are more compatible with this copolymer compared to the trimethylolethane trinitrate (TMETN) and 1,2,4-butanetriol trinitrate (BTTN) plasticizers. The effect of the plasticizer (BuNENA) on the thermo-mechanical properties of the polyurethane
EFFECT OF PLASTICIZER, FILLER AND SOLVENT SWELL ON
Incorporation of additives (plasticizer and filler) improves the performance characteristics of polyurethane elastomers. However, the degree of improvement varies based on the nature of...
Mechanical and Swelling Properties of Hydroxyl-Terminated
Our findings showed that nanoclay in particular is an effective inorganic filler that can modulate the microstructural and mechanical behavior of polyurethane elastomers for tuned applications. Introduction Polyurethanes (PUs) are formed by the reaction of long-chain polyols and diisocyanates. The main reaction during polyurethane formation is
ResearchGate
The incorporation of filler in the plasticized polyurethane enhances the hardness, tensile strength, modulus, density, tear strength and solvent resistance. For a particular level of...
Thermoplastic Ployurethane Elastomers (TPU) BASF
swelling of Elastollan products. This is combined with a loss of tensile strength. Rising temperatures intensify these effects. Ketones such as acetone, methylethylketone (MEK) and cyclohexanone are partial solvents for thermoplastic polyurethane elastomers. Elastollan products are unsuitable for long-term use in these solvents.
- 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
- Does the plasticizer affect the thermo-mechanical properties of a polyurethane network?
- The effect of the plasticizer (BuNENA) on the thermo-mechanical properties of the polyurethane network was investigated using a dynamic mechanical analysis (DMA) and tensile test. Tensile strength and modulus of the polyurethane are decreased by increasing of the BuNENA.
- 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 swelling test for plasticizer absorption in elastomeric networks?
- The swelling test for plasticizer absorption in elastomeric networks has been used to study the compatibility of copolymer/plastisizer systems. Generally, a high absorption indicates that the molecules have a desirable interaction and form a compatible composition.
- What are polyurethane elastomers?
- The polyurethane elastomers are developed with a view to utilize them in high performance print roller applications, with improved strength and solvent resistant characteristics.
- How are polyurethane elastomers developed?
- Bharathidasan Institute of Technology, Anna University, Tiruchirappalli. Polyurethane elastomers are developed using different types of isocyanate terminated polyether based prepolymers (A, B and C) with four types of multifunctional hydroxy derivated curatives (X1, X2, X3 and X4) and selected processing additives namely plasticizer and filler.
