| 1 | The influence of the NCO/OH ratio and the 1,6-hexanediol/ dimethylol propionic acid molar ratio on the properties of waterborne polyurethane dispersions based on 1,5-pentamethylene diisocyanate显示文摘1,5-Pentamethylene diisocyanate, a novel aliphatic diisocyanate formed from bio-based 1,5-pentamethylenediamine, has been used as a hard segmented material to synthesize polyurethane. In this study, several waterborne polyurethane (WPU) dispersions have been successfully prepared by a prepolymer process from 1,5-pentamethylene diisocyanate poly(polyether) with different NCO/OH ratios and 1,6-hexanediol (HDO)/dimethylol propionic acid (DMPA) molar ratios. The Fourier transfonn infrared (FTIR) spectra, thermogravimetric analysis, differential scanning calorimetry, X-ray diffiraction, and a mechanical tensile test were used to investigate the structures, thermal stability, phase separation, crystallinity, mechanical properties, and adhesive performance of the WPU dispersions. The FTIR results indicate that the degree of hydrogen bonding and the numbers of urea groups increase as the NCO/OH ratio and HDO/DMPA molar ratio increase. Furthermore, the phase separation increases and the thermal stability decreases as the NCO/OH ratio increases or the HDO/DMPA molar ratio decreases. Finally, WPU3.0-2.4 (NCO/OH = 3, HDO/DMPA = 2.4) exhibits a maximum tensile strength and shear strength, pointing to its possible use as an adhesive. These results could provide a very valuable reference for industrial applications of WPU. | Jiao Feng Qiuhao Lu Weimin Tan Kequan Chen Pingkai Ouyang | 2019 | Frontiers of Chemical Science and Engineering2019，13，1： | 3 |
| 2 | THE EFFECTS OF COMBINING APPLICATION OF DIAGNOSIS AND TREATMENT TECHNOLOGIES OF ERP AND PSYCHIC REHABILITATION INTERVENTION ON REHABILITATION OF SCHIZOPHRENIA显示文摘Objective:To explore the effects of combining application of diagnosis and treatment technologies of Event Related Potentials(ERP)and Psychic Rehabilitation Intervention(PRI)on rehabilitation of schizophrenia.Methods:PRI and ERP were used in schizophrenia rehabilitation in this research.232 patients were divided into study group(SG)and control group(CG),and the rehabilitation effects were compared.Results:(1)After the implementation of the PRI,more score of the Brief Psychiatric Rating Scale(BPRS)was reduced on SG than the score on CG;more decreased scores of insight and on Social Disability Screening Schedule(SDSS),and more increased scores of treatment compliance questionnaire scores were observed on SG,comparing with CG(P<0.05 or 0.01).(2)After the implementation of the PRI,more decreased factor scores of Symptom Checklist 90 were observed on SG patients family members(P<0.05 or 0.01).(3)PRI significantly improved the patients’social functions,family members’relationship and prevented the recurrence of schizophrenia.(4)Improved P2,P3 amplitudes were also detected on SG compared with CG(P<0.05).Conclusions:(1)PRI interventions may improve schizophrenia patients’social function.(2)ERP may be used to evaluate the schizophrenia patients’rehabilitation,and is worth being popularized. | Song Lisheng Zhang Chen Chen Meijuan Zhang Yi Li Xiaoping Zhao Wenqing Yang Xujiao Huang Xinrui Lin Xiaodong Chen Ce Wang Xiwu Wu Rongqin Xu Lu Tang Jialin Wang Zuowei Zhan Guilai Zhang Zhanxing He Qiuhao | 2019 | 现代电生理学杂志2019，26，B03： | 0 |
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