| 溶胶SiO2改性高度支化水性聚氨酯的研究 |
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| 引用本文： | 朱威,杨超群,胡蝶. 溶胶SiO2改性高度支化水性聚氨酯的研究[J]. 湖北大学学报(自然科学版), 2011, 33(1): 80-83 |
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| 作者姓名： | 朱威 杨超群 胡蝶 |
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| 作者单位： | 湖北大学材料科学与工程学院,湖北,武汉,430062 |
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| 基金项目： | 湖北省自然科学基金项目 |
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| 摘 要： | 以甲苯-2,4-二异氰酸酯(TDI)、聚碳酸酯二醇(PCDL)、二羟甲基丙酸(DMPA)和聚醚胺(ATA)为原料,采用A2+B3法合成了具有高度支化结构的水性聚氨酯(HBAPU),然后分别加入质量分数(下同)为0.5%,1.5%,2%,3%的SiO<,2>溶胶制成溶胶SiO<,2>改性高度支化水性聚氨酯.用红外光谱(F...
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| 关 键 词： | 水性聚氨酯 高度支化 溶胶SiO2 改性 性能 |
Study on modification of highly branched aqueous polyurethane by colloidal silica |
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| ZHU Wei,YANG Chaoqun,HU Die. Study on modification of highly branched aqueous polyurethane by colloidal silica[J]. Journal of Hubei University(Natural Science Edition), 2011, 33(1): 80-83 |
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| Authors: | ZHU Wei YANG Chaoqun HU Die |
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| Affiliation: | (School of Materials Science and Engineering,Hubei University,Wuhan 430062,China) |
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| Abstract: | Highly branched aqueous polyurethane（HBAPU）was synthesized via A2＋B3 approach using 2,4-toluylene diisocyanate（TDI）,dimethylol propionic acid（DMPA）,polycarbonatediol（PCDL） and poly（oxyalkylene） triamine（ATA） as materials.Then adding the content of 0.5%,1.5%,2%,3% colloidal silica separately,it can be synthesized into HBAPU modified by colloidal silica.The structure of the products was characterized by Fourier transform infrared spectroscopy（FT-IR）.The thermal and mechanical properties of the products were measured by differential scanning calorimetry（DSC）,thermogravimetric analysis（TGA）,tensile tests,rotational viscometer tests and Dynamic thermomechanical analysis（DMA）.It had been found that the resistance and mechanical properties increased with the increasing content of SiO2;the degradation temperature of the HBAPU was 200 ℃ and the highest tensile strength was 11 MPa. |
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| Keywords: | aqueous polyurethane highly branched colloidal silica modification properities |
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