Effect of the soft and hard segment composition on the properties of waterborne polyurethane-based solid polymer electrolyte for lithium ion batteries

Ren, Naiqing; Song, Youxin; Tao, Can; Cong, Bing; Cheng, Qin; Huang, Yiping; Ge-wen, XU; Bao, Junjie

doi:10.1007/s10008-017-3855-1

Cited by 30 publications

(21 citation statements)

References 61 publications

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“…The soft segment represents a soft part with a glass‐transition temperature ( T g ) below room temperature and is usually composed of a glycol. The hard segment represents a rigid part with a glass transition above room temperature and consists of an isocyanate and a small molecular chain extender . However, PU degrades when it is exposed to moist air for a long time.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of silicone oil modified polyurethane damping materials

Tian

et al. 2019

J of Applied Polymer Sci

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A series of polyurethane (PU) composites, which could be used as damping materials, with different contents of hydroxyl silicone oil were successfully prepared in this study. The damping and mechanical properties, thermal stability, and molecular groups of the PU composites were characterized by dynamic mechanical analysis, electronic tensile analysis, thermogravimetric analysis, and Fourier transform infrared (FTIR) spectroscopy, respectively. The surface morphology was also observed via scanning electron microscopy (SEM). FTIR spectroscopy showed that the hydroxyl silicone oil was embedded in the PU. The soft and hard segments of the PU composites appeared thermodynamically incompatible and showed microphase separation, as shown by the SEM pictures. The PU composite with 8% hydroxyl silicone oil was found to possess the best synthetic properties among these composites. The maximum values of tan δ were 0.376, 0.561, and 0.573 at 1, 10, and 20 Hz, respectively. The temperature range for the use of damping materials becomes wider at 1 Hz. Frequencies of 10 and 20 Hz might suitable surroundings for the application of damping materials. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47579.

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Section: Introductionmentioning

confidence: 99%

Preparation and characterization of silicone oil modified polyurethane damping materials

Tian

et al. 2019

J of Applied Polymer Sci

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“…T m of HS (T m,HS ), and T g of SS (T g,SS ) and HS (T g,HS ) are mentioned in Figure 3. 50 There was no observation of T m for the SS due to the short chain length of SS 51 and nature of PDMS. The T g,SS of HS0.0 was −70.3 C. Adding CNCs affected the mobility of the polymer chains and by increasing CNC content, T g,SS increased due to immobilization of polymer chains on the surface of CNCs and prevention of their mobility because of reaction of isocyanates with hydroxyls of CNCs.…”

Section: Resultsmentioning

confidence: 97%

“…42 However, T g,HS was observed between 77.1 and 88.5 C where the higher CNC content resulted in higher T g,HS indicating the increased hydrogen bonding interaction. 50 There was no observation of T m for the SS due to the short chain length of SS 51 and nature of PDMS. In HS0.0, endothermic peak at 174.7 C was related to T m,HS .…”

Section: Resultsmentioning

confidence: 98%

“…The addition of CNCs reduced the crystallinity of HS and T m,HS reduced to 158.2 C for HS1.0 because CNCs created disturbing at HS hydrogen bonding. 50,54 The bond strength of Si O bond is higher than C C bond 40 ; therefore, degradation temperature of PDMS is significantly higher than of polymer containing C C bond. In this case, the polyol chains could not prevent the chain regularity in the HS and consequently, the HS chains could be ordered in the crystalline cells.…”

Section: Resultsmentioning

confidence: 99%

“…40 On the other hand, the first stage was related to destruction of HS which had lower thermal stability than SS due to lower molecular weight. 50,54 The bond strength of Si O bond is higher than C C bond 40 ; therefore, degradation temperature of PDMS is significantly higher than of polymer containing C C bond. The PU/CNC nanocomposites with higher values of SS had higher initial temperatures of thermal degradation.…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of in vitro cytotoxicity and properties of polydimethylsiloxane‐based polyurethane/crystalline nanocellulose bionanocomposites

Khadivi

Salami‐Kalajahi

Roghani‐Mamaqani

2019

J Biomedical Materials Res

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Polydimethylsiloxane‐based polyurethane (PU)/crystalline nanocellulose (CNC) bionanocomposites were produced via in situ prepolymer approach. Also, hexamethylene diisocyanate as aliphatic diisocyanate monomer and 1,4‐butanediol as aliphatic chain extender were used. CNC was incorporated into PU matrix to prepare different PU/CNC bionanocomposites. Effect of CNC content on the properties of the bionanocomposites such as thermal, thermophysical, microstructure, and in vitro cytotoxicity was investigated. According to the results, incorporating CNCs into PU matrix significantly affected the hydrogen bonding between different microstructures of matrix. Adding different amounts of CNCs affected the thermal and thermophysical properties of bionanocomposites. Also, higher amounts of CNCs resulted in lower crystallization of hard segment. Neat PU matrix showed a moderate cytotoxicity behavior against human fibroblast cells. However, incorporating CNCs significantly improved the cytotoxicity behavior of bionanocomposites where by addition of 2 wt % of CNCs, cell viability increased to 90–100%. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1771–1778, 2019.

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Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery

Zhang

Liu

Zou

et al. 2021

J of Applied Polymer Sci

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Solid polymer electrolyte (SPE)‐based lithium batteries have easy processing and safety for energy vehicles and storage. However, the preparation process of SPEs mostly used a lot of organic solvents, which will threaten human living space and body health. Herein, a novel green solid polymer electrolyte (ionic liquid type waterborne polyurethane, IWPUS) without no organic solvents was prepared from hybrids of ionic liquid‐based waterborne polyurethane (IWPU) and LiClO4. The structure and properties of IWPUS were investigated by IR, SEM, XRD, TGA, ion conductivity test. The results showed that Li+ of LiClO4 could coordinate with CO and COC in the polyurethane matrix. LiClO4 had been well dispersed in IWPU. The conductivity of IWPUS increased with the increase of LiClO4 content. The higher conductivity of IWPUS with 20% LiClO4 at 80°C was 1.8 × 10−4 s•cm−1. IWPUS based on ionic liquid‐based waterborne polyurethane would be promised to become an environmentally friendly candidate for all solid‐state lithium ion batteries.

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Effect of the soft and hard segment composition on the properties of waterborne polyurethane-based solid polymer electrolyte for lithium ion batteries

Cited by 30 publications

References 61 publications

Preparation and characterization of silicone oil modified polyurethane damping materials

Preparation and characterization of silicone oil modified polyurethane damping materials

Evaluation of in vitro cytotoxicity and properties of polydimethylsiloxane‐based polyurethane/crystalline nanocellulose bionanocomposites

Preparation and properties of a novel green solid polymer electrolyte for all‐solid‐state lithium battery

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