论文英文摘要范例

温州大学本科毕业论文 II luminescent materials solid phase sintering met Author: Wang Xiaoxiao Advisor: Ma Dekun College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou Zhejiang, 325027 Abstract In this paper introducted the flame-retardant mechanism of inorganic metal graphite fire retardant, nitrogen flame retardant, silicon flame retardant, phosphorus flame retardant, intumescent flame retardants and these types of halogen-free flame retardant, and briefly discussed the flame retardant technology and development direction. The experimental slurry-based polyurethane body , retardant, joined a certain proportion of micro-capsules red phosphorus, magnesium hydroxide, used as solvent butanone stirring uniform, add to prepared beforehand die, natural evaporation molding, the final add to oven drying, and testing their oxygen index and vertical combustion levels, and then use these two halogen-free flame retardant compound to identify the two best ratio of micro-capsules red phosphorus content to 71 per cent of polyurethane. When Moore of magnesium hydroxide Moore as four times of red phosphorus, will receive a higher oxygen index, and the vertical combustion test can be achieved V0 level; Red phosphorus / magnesium hydroxide flame-retardant system have a better overall performance, and the economy is good. Finally add a certain amount of sodium to the suppression Smoke. Key words: religion, root，regional conflicts “Times New Roman” 字 体，小二，加粗，居中， 单倍行距 “Times New Roman”字体，小四，1.5 倍行距，两端对齐 “Key words” 首字母 大写，小四，加粗 3-5 个关键词，各关键词间 用英文（半角）分号间隔 “Times New Roman” 字体，小四，加粗， 顶格 空一行 中英文摘要页，页码采用 大写罗马字母编排，居中 “Times New Roman”字体， 五号，加粗，居中，单倍行 距，段前段后0.5 行 “Times New Roman”字体， 小五号，加粗，居中，单倍 行距，段前段后0.5 行