(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsFractal dimensionMaterialPolymer researchSAXSTechniqueTemperature

Ordered structure effects on β-nucleated isotactic polypropylene/graphene oxide composites with different thermal histories

Yu, Yansong; Xu, Ruizhang; Chen, Jinyao; Kang, Jian; Xiang, Ming; Li, Yuanjie; Li, Lu; Sheng, Xingyue

In this paper, the influence of ordered structure effects (OSE) on crystallization behaviors of b-nucleated isotactic polypropylene/graphene oxide (b-iPP/GO) composites with different thermal histories, which crystallized at a slow cooling rate (called SLOW), fast cooling rate (called FAST) and medium cooling rate (called MED), respectively, was studied by differential scanning…
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialPolymer researchSAXSTechnique

Influence of extender oil composition on flowing property, thermal stability, and morphology of styrene-b-ethylene-co-butylene-b-styrene copolymer/polypropylene/oil blends

Shi, Xiaotao; Wu, Jianxun; Zhen, Xinping; Xie, Haisheng; Xiong, Chunzhu

In this study, a series of styrene-b-ethylene-co-butylene-b-styrene copolymer (SEBS)/polypropylene (PP)/oil blends with different kinds of oil composition was developed through melt blending. The effect of oil with different composition and properties on its phase equilibrium and “redistribution” in multiphasic SEBS elastomer was systematically studied for the first time. Moreover, an…
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsFibersMaterialOtherPhase analysisSAXSTechniqueWAXS

Morphology and ionic conductivity relationship in silk/cellulose biocomposites

Blessing, Bailey; Trout, Cory; Morales, Abneris; Rybacki, Karleena; Love, Stacy A.; Lamoureux, Guillaume; O’Malley, Sean M.; Hu, Xiao; Cruz, David Salas-de la

The relationship between morphology and the ionic conductivity of polysaccharide–protein bio-electrolyte membranes is explored in this study. Structural proteins and polysaccharides form hydrophobic and electrostatic interactions, and the resulting matrices can exhibit novel and useful properties. However, transforming these natural biomacromolecules from their native state to a more usable form…
25 November 2019
(Hydro)gels(Natural) polymersApplicationCharacterizationCompositesCrystalline fractionCustomer publicationsMaterialOrientation analysisPhase analysisPolymer researchSAXSTechnique

Construction of Dual Orientation Crystalline Structure in Poly(vinyl alcohol)/Graphene Oxide Nano-Composite Hydrogels and Reinforcing Mechanism

Meng, Yeqiao; Zhao, Xiaowen; Ye, Lin

Oriented poly(vinyl alcohol) (PVA)/graphene oxide (GO) nanocomposite hydrogels with different draw ratios were prepared by stretching during a freezing/thawing process. The PVA/GO samples with a draw ratio of 200% had significantly enhanced mechanical properties by formation of a microfibrillar structure, while the tensile strength and compressive modulus respectively reached as…
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsFractal dimensionMaterialPolymer researchSAXSTechniqueWAXS

Dielectric and flash DSC investigations on an epoxy based nanocomposite system with MgAl layered double hydroxide as nanofiller

Szymoniak, Paulina; Li, Zhi; Wang, De-Yi; Schönhals, Andreas

Nanocomposites based on MgAL layered double hydroxides (LDH) and an epoxy resin were prepared and investigated by a combination of complementary methods. As epoxy resin Bisphenol A diglycidyl ether (DGEBA) was used with Diethylenetriamine as curing agent. The LDH was modified with taurine, which acts as an additional crosslinking agent…
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialPolymer researchSAXSTechnique

Simultaneously enhancing of wear-resistant and mechanical properties of polyurethane composite based on the selective interaction of fluorinated graphene derivatives

He, Taijun; Wang, Guitu; Wang, Yixing; Liu, Yang; Lai, Wenchuan; Wang, Xu; Feng, Yiyu; Liu, Xiangyang

Simultaneously enhancing of wear-resistant and mechanical properties of the thermoplastic polyurethane (TPU) is important for its wider application. Herein, fluorinated graphene (FG) was proposed and respectively functionalized by two amine-terminated molecules: aliphatic poly (oxypropylene) diamine (D230) (compatible with soft segment (SS) of TPU), and aromatic phenylamine (PA) (compatible with…
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialPolymer researchSAXSTechnique

A robust self-healing polyurethane elastomer: From H-bonds and stacking interactions to well-defined microphase morphology

Fan, Cheng-Jie; Huang, Zi-Chun; Li, Bei; Xiao, Wen-Xia; Zheng, En; Yang, Ke-Ke; Wang, Yu-Zhong

Self-healing materials have attracted considerable attention because of their improved safety, lifetime, energy efficiency and environmental impact. Supramolecular interactions have been extensively considered in the field of self-healing materials due to their excellent reversibility and sensitive responsiveness to environmental stimuli. However, development of a polymeric material with good…
25 November 2019
ApplicationCharacterizationCompositesCustomer publicationsMaterialPhase analysisPolymer researchTechniqueWAXS

Room-Temperature Ferromagnetic Sr3YCo4O10+δ and Carbon Black-Reinforced Polyvinylidenefluoride Composites toward High-Performance Electromagnetic Interference Shielding

Lalan, Vidhya; Puthiyedath Narayanan, Aparna; Surendran, Kuzhichalil Peethambharan; Ganesanpotti, Subodh

In this study, we fabricated composites of conducting carbon black (CB), room-temperature ferromagnetic Sr3YCo4O10+δ (SYCO) and polyvinylidenefluoride (PVDF) by the solution mixing and coagulation method for the first time. During the nucleation process of PVDF, the presence of SYCO and CB individually facilitates the crystallization of polar β and semipolar…
25 November 2019
(Natural) polymersApplicationCharacterizationCompositesCustomer publicationsGISAXSMaterialOrientation analysisPolymer researchTechnique

A printed, recyclable, ultra-strong, and ultra-tough graphite structural material

Zhou, Yubing; Chen, Chaoji; Zhu, Shuze; Sui, Chao; Wang, Chao; Kuang, Yudi; Ray, Upamanyu; Liu, Dapeng; Brozena, Alexandra; Leiste, Ulrich H.; Quispe, Nelson; Guo, Hua; Vellore, Azhar; Bruck, Hugh A.; Martini, Ashlie; Foster, Bob; Lou, Jun; Li, Teng; Hu, Liangbing

The high mechanical performance of common structural materials (e.g., metals, alloys, and ceramics) originates from strong primary bonds (i.e., metallic, covalent, ionic) between constituent atoms. However, the large formation energy of primary bonds requires high temperatures in order to process these materials, resulting in significant manufacturing costs and a substantial…
25 November 2019