新型聚硫橡膠單體的合成與表征

論文編號(hào):HG225  論文字?jǐn)?shù):14094,頁數(shù):30

摘 要
 本文所說的新型聚硫橡膠系指以液態(tài)聚硫橡膠為主劑的固化物。液態(tài)聚硫橡膠是一種重要的特種合成橡膠品種。據(jù)不完全統(tǒng)計(jì), 全世界液態(tài)聚硫橡膠的年生產(chǎn)能力約3.7 萬噸。液態(tài)聚硫橡膠的生產(chǎn)廠家并不多，主要是集中在美國(guó)、德國(guó)日本和我國(guó)的錦西化工研究可以生產(chǎn)。
 目前的聚硫橡膠多是以二氯乙基縮甲醛為單體合成的，本文主要開發(fā)新的液體聚硫橡膠單體——二氯二甘醇（或三甘醇），用于代替?zhèn)鹘y(tǒng)的二氯乙基縮甲醛單體，用以合成新型耐候性好的液態(tài)聚硫橡膠。
實(shí)驗(yàn)重點(diǎn)對(duì)氯化三甘醇的工藝條件進(jìn)行了考察，分析了催化劑、反應(yīng)時(shí)間、反應(yīng)溫度、蒸餾條件和反應(yīng)裝置等因素對(duì)其的影響。初步得出的工藝條件為: 200ml 三甘醇和A、B 催化劑，在高壓反應(yīng)釜中，控制反應(yīng)溫度130℃、0.7MPa 的壓力，緩慢通入氯化氫氣體反應(yīng)8h，粗產(chǎn)品在精餾塔中減壓分離，循環(huán)殘液五次，最終得到產(chǎn)品收率為84.27%。
 本論文研究的工藝，具有工藝簡(jiǎn)單，原料成本低，合成工藝清潔環(huán)保，產(chǎn)品收率高等優(yōu)點(diǎn)。
關(guān)鍵詞：聚硫橡膠，氯化二甘醇（三甘醇），合成，表征

Synthesis And Token Of The New Polysulfide Rubber MonomerAbstract
 In this paper, a new type of polysulfide rubber main means Thiokol liquid. Liquidpolysulfide rubber is an important special type of synthetic rubber. According to incompletestatistics, the world's liquid Thiokol's annual production capacity of about 37,000 tons. Liquidpolysulfide rubber producers are not many, mainly concentrated in the USA, Germany andJapan and Jinxi Chemical Industry Research Institute can produce in our country.
 Currently, Thiokol is more use dichloro-ethyl-Formaldehyde for monomer to synthesize,this paper, main purpose is to develop a new liquid polysulfide rubber monomerdichloro-diethylene glycol (or triethylene glycol)，for an alternative to conventional Liquidpolysulfide rubber monomer for synthesis of new Weatherability good liquid Thiokol.
 This experiment focused on the process conditions of Triglycol dichloride, analyze theimpact of factors such as the catalyst, reaction time, reaction temperature，reaction distillationunit and so on.The result shows that, the optimal condition are follows: 200ml Triethyleneglycol and catalyst used 6gA，1gB, in the high-pressure reactor, the control of reactiontemperature 130℃, 0.7MPa pressure，slow access to hydrogen chloride gas reaction 8h,coarse products decompression separation in the distillation tower，recycling use residual liquidthree times，and finally the yield of produce is over 84%.
 The technology studied in this paper, the material was easy to get and low cost, with asimple process, synthesis of environmentally friendly and the yield is high.
Key words: polysulfide rubber；Diglycol(Triglycol) dichloride；synthsis；characteristic

目 錄
摘要I
目錄III
1   緒論1
1.1   國(guó)外研究現(xiàn)狀和發(fā)展趨勢(shì) 1
1.2   國(guó)內(nèi)研究狀況和發(fā)展趨勢(shì)2
1.3   本次課題研究的內(nèi)容3
2   實(shí)驗(yàn)部分.3
2.1   二氯二甘醇的合成3
2.1.1   概況  3
2.1.2   合成原理  6
2.1.3   物料性質(zhì)及實(shí)驗(yàn)裝置  6
2.1.4   實(shí)驗(yàn)操作  9
2.2   二氯三甘醇的合成 . 9
2.2.1   概況  9
2.2.2   合成原理  10
2.2.3   物料性質(zhì)及實(shí)驗(yàn)裝置.10
2.2.4   實(shí)驗(yàn)操作  11
3   結(jié)果與討論 . 12
3.1   二氯二甘醇的結(jié)果與討論 . 12
3.1.1   二氯二甘醇的表征 .12
3.1.2   反應(yīng)溫度的控制 .14
3.1.3   催化劑量的選擇  14
3.2   二氯三甘醇的結(jié)果與討論 15
3.2.1   二氯三甘醇的表征 .15
3.2.2   不同溫度下產(chǎn)物隨時(shí)間的變化 .17
3.2.3   催化劑對(duì)反應(yīng)收率的影響 .19
3.2.4   循環(huán)次數(shù)對(duì)收率的影響 .20
3.3   結(jié)論 21
4   展望 22
參考文獻(xiàn) .23
致 謝 .25