Preparation and Characterization of Fluorinated Hydrophobic UV-Crosslinkable Thiol-Ene Polyurethane Coatings

Xia, Wei; Zhu, Na; Hou, Rongjie; Zhong, Wengui; Chen, Mingqing

doi:10.3390/coatings7080117

Cited by 25 publications

(14 citation statements)

References 43 publications

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“…The results of NOPs modification experiments on PUDs provide an effective basis for the selection of adhesives for high-performance polyurethane coatings in the future, and effectively promote the steady progress of green production of polyurethane coatings. Xia and Zhu (2017) used fluoroacrylate monomers and multifunctional mercaptans to blend and modify polyurethane, and their study found that the durability, yellowing resistance and elongation at break of the modified polyurethane coating were significantly improved. However, the current research on polyurethane modification technology cannot fully meet people’s performance requirements for polyurethane coating materials.…”

Section: Coated Polymer For Cut-resistantmentioning

confidence: 99%

Research Progress of Cut-Resistant Textile Materials

et al. 2021

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This article describes the physical properties, application fields and modification technologies of several commonly used cut-resistant textile raw materials and coating materials, and summarizes and compares and analyzes the current commonly used cut-resistant textile materials evaluation standards: EN420, EN388, ASTM F-1790, ISO13997. Finally, it is pointed out that lightness, softness and comfort are the future research and development directions of cut-resistant textiles. The article provides a preliminary reference for the application and modification of high-performance fibers and coating materials in cut-resistant textiles.

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Section: Coated Polymer For Cut-resistantmentioning

confidence: 99%

Research Progress of Cut-Resistant Textile Materials

et al. 2021

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“…Thermoplastic polyurethane (TPU) elastomer, a segmented block copolymer, composed of alternant soft segments (SSs) and hard segments (HSs) exhibits microphase separation and supramolecular networks depending on the intersegmental interactions between SSs and HSs. TPUs have been used in many fields, such as heat storage, dielectric materials, shape memory, , drug delivery, cardiovascular prosthetics, wear-resistant endoprosthesis, sorbent materials, and UV-curable coating . The SSs provide flexibility and elasticity with low glass transition temperature ( T g ) below ambient temperature.…”

Section: Introductionmentioning

confidence: 99%

Robust Stretchable Thermoplastic Polyurethanes with Long Soft Segments and Steric Semisymmetric Hard Segments

Zhang

2020

Ind. Eng. Chem. Res.

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Thermoplastic polyurethane (TPU) elastomers based on polyoxytetramethylene glycol (PTMG) with 2000 g·mol–1 as soft segments (SSs) and isocyanates as well as their reaction with butanediol as hard segments (HSs) were synthesized. The three-dimensional supramolecular networks were constructed in TPU by the formation of physical HSs-rich domains via microphase separation, hydrogen bonding, and microcrystallization, which are dominated by the chemical structure of HSs. The robust stretchable TPU with an excellent tensile strength of 32 MPa and elongation of 1378% at break could be successfully prepared, and no crystallization happened to keep the elasticity even at a low temperature (−90 °C) when the steric semisymmetric bis(4-isocyanatocyclohexyl)methane (HMDI) was introduced into HSs-rich domains. The crystallinity and ordered hydrogen bonding content decreased in HSs-rich domains with increases in steric hindrance and asymmetry of diisocyanates. A new approach was developed to construct the high-performance TPUs by introducing long PTMG SSs for the flexibility and elasticity and steric semisymmetric HMDI hard segments.

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“…It is generally known that polyurethanes have increasingly attracted attention because of their outstanding properties and wide applications in foams, plastics, rubber, and coatings [1][2][3]. As a member of the polyurethane family, polythiourethanes (PSU) are formed by a reaction of isocyanates or isothiocyanate with polyols, polythiols, water, and amines containing an active hydrogen atom [4,5].…”

Section: Introductionmentioning

confidence: 99%

Cure Kinetics of an Optical Polythiourethane with Amine Catalyst by IR Analysis

Zhang

Wang

et al. 2019

International Journal of Polymer Science

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An optical polythiourethane based on m-xylylene diisocyanate (XDI) and 4-mercaptomethyl-3,6-dithia-1,8-octanedithiol (BES) has been studied. Triethylamine was adopted as a catalyst, and the solid-state isothermal cure reaction was carried out using FTIR spectroscopy, in the temperature range of 75°C-105°C. The -NCO absorption band of XDI was used to monitor the conversion of diisocyanate into polythiourethane. The reaction rate enhanced with an increase in the content of the catalyst, and the gel time determined by swelling test was shorter for the system with higher catalyst content. Kinetic parameters were calculated from the infrared spectrum data, and the results showed that the curing reaction of polythiourethane accords with first-order kinetic characteristics. The activation parameters obtained from the evaluation of kinetic data were △H∗=97.22 kJ mol−1, △S∗=−6.77 J K−1 mol−1, and Ea=100.23 kJ mol−1. The observed negative entropy of activation value supported the formation of a transition state in the cure reaction.

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Preparation and Characterization of Fluorinated Hydrophobic UV-Crosslinkable Thiol-Ene Polyurethane Coatings

Cited by 25 publications

References 43 publications

Research Progress of Cut-Resistant Textile Materials

Research Progress of Cut-Resistant Textile Materials

Robust Stretchable Thermoplastic Polyurethanes with Long Soft Segments and Steric Semisymmetric Hard Segments

Cure Kinetics of an Optical Polythiourethane with Amine Catalyst by IR Analysis

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