Agnol, Lucas Dall published the artcileThermoplastic polyurethane/butylene-styrene triblock copolymer blends: an alternative to tune wear behavior, Quality Control of 31570-04-4, the publication is Polymer Bulletin (Heidelberg, Germany) (2022), 79(7), 5199-5217, database is CAplus.
This work presents an interesting alternative for improving thermoplastic polyurethane’s (TPUs) tribol. properties by incorporating styrene-ethylene/butylene-styrene triblock copolymer (SEBS) via melt blending. Two TPUs with different molar masses, two compatibilizers SEBS-g-MA (C1) and SEBS-b-TPU (C2) and paraffinic oil were used in the formulated blends. The raw materials’ effect on the morphol., rheol., phys.-mech. and tribol. performance of TPU/SEBS blends was monitored. The phase morphol. achieved depended on the addition of mineral oil and compatibilizer agent type. The rheol. anal. showed a pseudo-liquid viscous behavior for all samples. However, this behavior was related to the compatibilizer type and molar mass of the TPU. No significant changes were observed between the compatibilizers C1 and C2 concerning the physicomech. properties. The fact that mineral oil is preferentially contained in the SEBS phase is the fundamental point to explain the blends phase morphol. and their rheol. and phys. behaviors. The swollen state SEBS modifies the TPU’s performance. It also allows tuning properties such as abrasion and increasing the friction coefficient, enabling promising applications for these thermoplastic elastomers blends.
Polymer Bulletin (Heidelberg, Germany) published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, Quality Control of 31570-04-4.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics