【正文】 與學的體制束縛，在論文的寫作過程中，通過查資料和搜集有關(guān)的文獻，培養(yǎng)了自學能力。并且由原先的被動接受知識轉(zhuǎn)換為主動的尋求知識，這可以說是學習方法上的一個很大的突破。在以往的傳統(tǒng)的學習模式下，我們可能會記住很多的書本知識，但是通過畢業(yè)論文，我們學會了如何將學到的知識轉(zhuǎn)化為自己的東西，學會了怎么更好的處理知識和實踐相結(jié)合的問題。在論文的寫作過程中也學到了做任何事情所要有的態(tài)度和心態(tài)，首先做學問要一絲不茍，對于發(fā)展過程中出現(xiàn)的任何問題和偏差都不要輕視，要通過正確的途徑去解決，在做事情的過程中要有耐心和毅力，不要一遇到困難就打退堂鼓，只要堅持下去就可以找到思路去解決問題的。而且要學會與人合作，這樣做起事情來就可以事倍功半?？傊舜握撐牡膶懽鬟^程我收獲了很多。即為大學學習劃一個句號，同時也為我下一步的學習做了很好的鋪墊。再次感謝我的大學和所有幫助過我并給我鼓勵的老師，同學和朋友，謝謝你們。參考文獻[1] [J].特種橡膠制品，2003. [2] [M].江蘇科學技術(shù)出版社，2002.[3] ，.[4] ，2002. [5] [J]化學進展，2007，19(1):146151.[6] [M].江蘇科學技術(shù)出版社，2002. [7] [J].現(xiàn)代化工，2005，25(1)：1318. [8] ，2002[9] [P].CN1618834A，2005[10] 徐培林，張淑琴．聚氨酯合成材料手冊[M].北學工業(yè)出版社，2002.[11] 方禹聲，朱呂民，聚氨酯泡沫塑料[M].化學工藝出版社，1994.[12] 李紹雄，[M].北學工業(yè)出版社，2002.[13] 陳鼎南. ， .[14] [J].化工文摘，2007(1):2122.[15] [M].江蘇科學技術(shù)出版社：2002.[16] [M].江蘇科學技術(shù)出版社：2002.[17] [J].精細石油化工進展，2007(8):5558.[18] 聚氨酯工業(yè)及發(fā)展趨勢[期刊論文]河北工業(yè)科技2006(4). [19] [國際化工信息]2002年第五期.[20] [J].化學推進劑和高分子材料，2003.[21] 王向東，[J].中國塑料，1999.[22] （二）[J].上?；ぃ?002.43附 錄聚氨酯主要原料生產(chǎn)廠家（1）甲苯二異氰酸酯（TDI）甘肅銀光化工公司；山西太原化工廠；上海吳淞化工廠。（2）二苯基甲烷二異氰酸酯（MDI）山東煙臺合成革總廠。（3）多亞甲基多苯基多異氰酸酯（PAPI）山東煙臺合成革總廠；重慶長風化工廠。（4）異弗爾酮二異氰酸酯（IPDI）中國化工新材料公司廣州分公司。（5）１，６－己二異氰酸酯（HDI）重慶長風化工廠；中國化工新材料公司廣州分公司。（1）聚酯多元醇江蘇省無錫天狗化工集團聚氨酯多元醇廠；江蘇省江都市聚氨酯廠；山東省煙臺合成革總廠。（2）聚醚多元醇天津市石油化工公司第三石化工廠；遼寧錦西化工總廠；浙江太平洋化學有限公司。（3）四氫呋喃二醇河南宏毅化工有限公司；山東省魯南化工廠。（4）聚丁二烯二醇蘭州化學工業(yè)公司化工研究院。外文資料翻譯Waterborne polyurethane The waterborne polyurethane resin already gradually replace the solventbased, bee the important direction of polyurethane industry. The waterborne polyurethane can be widely used in coating, adhesive, coated fabric and finishing agent, leather finishing agent, paper surface treated and fiber surface treated. This project funded by the national natural science funds research and ten years of research, has bee a mature anion type polyurethane emulsion and cation emulsifying since emulsified polyurethane emulsion type synthesis modification since the technology, can provide 1 tons/day waterborne polyurethane production capacity of production set of technology and equipment technology. This project can be based on user needs, for formula design of waterborne polyurethane with adjustment to meet requirements of actual use, and can be bined with high technical preparation nanometer heterozygous waterborne polyurethane. The waterborne polyurethane whole synthetic process can be divided into two phases. The first stage for, namely the advance gradually polymerization oligomer glycol, chain extension agent, waterbased monomer and diisocyanate through a solution gradually polymerization generating relative molecular mass for l000 middleweight of waterborne polyurethane。 The second stage for neutralization of prepolymerization body in the water after the scattered. Waterborne PU due to its environmental protection, although history is not long, but is developing very fast. The waterborne polyurethane including PU solution, water dispersed and water emulsion three, colloidal system for binary, polyurethane (PU) particles scattered the prototype, also have called waterborne PU or waterbased PU. Due to the diversity of polyurethane materials and formula, the waterborne polyurethane development 40 years or so of time, people have developed many kinds of preparation methods and preparation formula. The waterborne polyurethane varities, can press a variety of methods classification. 1. With appearance points The waterborne polyurethane polyurethane emulsion, polyurethane can be divided into dispersed, pu solution. The actual application is the largest polyurethane emulsion and dispersed, 2. According to the use form of points The waterborne polyurethane adhesive according to using singleponent forms can be divided into two categories. And two ponents Can use directly without crosslinking agent, or can be used to obtain the required performance waterborne polyurethane called singleponent aqueous pu adhesives. If used alone cannot obtain the desired performance, must add crosslinking agent。 Or general singleponent waterborne polyurethane after adding crosslinking agent can improve adhesive ability, in these cases, the waterborne polyurethane main agent and posed of crosslinking agent they will twoponent system. 3. To the nature points hydrophilic groups According to polyurethane molecular side chain or main chain, namely whether it contains ion groups of polymer (from whether ionic norbornenetype homopolymers), can be divided into anionic waterborne polyurethane type, cationic of nonionic,. Contain anion and cation waterborne polyurethane (also called from waterborne polyurethane norbornenetype homopolymers type). 4. With polyurethane materials points According to the main oligomer polyols types can be divided into polyether type, polyester and polyolefin type etc, are refers to using polyether polyols, polyester polyols, like polybutadiene glycol as oligomer polyols waterborne polyurethane made. And polyether polyester, polyether like polybutadiene mixed with polyurethane isocyanate raw material points, can be divided into aromatic isocyanate type, aliphatic isocyanate type, fat alicyclic isocyanate type. According to the specific material also can be divided, such as TDI type, HDI type, etc. 5. According to the overall structure of the polyurethane resin division (1) by raw material and structure can be divided into polyurethane emulsion, vinyl polyurethane emulsion, much isocyanate emulsion, closing polyurethane emulsion. Polyurethane emulsion refers to the oligomer polyols and extender chain agent and diisocyanate as raw materials, usually methods of polyurethane dispersed in water preparation by the formation of the emulsion. Vinyl polyurethane emulsion generally refers to in vinyl resin emulsion aqueous or add isocyanate emulsion, is formed twoponent system. Many isocyanate emulsion containing hydrophilic groups