聚氨酯型紫外光固化涂料合成工藝及應用研究

材料科學論文編號:CL056  論文字數:13083,頁數:29

目  錄
中文摘要 I
英文摘要 II
目錄 III
1. 緒論 1
 1.1  紫外光固化涂料的研究進展 1
 1.1.1 紫外光固化涂料的組成 2
 1.2  聚氨酯型光固涂料 4
 1.2.1 聚氨酯型丙烯酸酯的特點 5
 1.2.2 有機硅改性聚氨酯的特點 5
 1.2.3 環氧樹脂改性聚氨酯的特點 5
 1.2.4 氨酯型光固涂料的合成方法和路線 5
 1.3 紫外光固化涂料在塑料制品中的應用 7
 1.4 主要研究內容 9
 2  實驗部分 10
 2.1 主要原材料及儀器 10
 2.1.1  原材料 10
 2.1.2 主要儀器 10
 2.2 實驗步驟 11
 2.2.1  丙烯酸酯化聚氨酯預聚體制備 11
 2.2.2  多元醇改性丙烯酸酯化聚氨酯預聚體制備 11
 2.2.3  有機硅烷改性丙烯酸酯化聚氨酯預聚體制備 12
 2.2.4 游離-NCO的測定 12
 2.2.5  ABS用紫外光固涂料制備 13
 
3. 結果與討論 15
 3.1丙烯酸酯化聚氨酯預聚體   15
 3.2 多元醇改性丙烯酸酯化聚氨酯預聚體 16
 3.3有機硅烷改性丙烯酸酯化聚氨酯預聚體 19
 3.4  多元醇改性丙烯酸酯化聚氨酯預聚體中試 21
 3.5  涂料配制 21
4．總結與展望 22
致謝 24
參考文獻 25

摘 要： 紫外光固化（UV）是目前涂裝領域中最快的固化方式之一，經過UV固化后的涂膜具有很高的抗化學腐蝕性，優良的物理性能和光澤。本文主要以丙烯酸酯合成改性聚氨酯，所得產物再進行多元醇和有機硅烷的改性。測試結果表明：硅烷偶聯劑成功接枝在聚氨酯丙烯酸酯預聚體上，產物的表干時間、粘接強度、耐熱耐水性得到較大改善。
 本文以異佛爾酮二異氰酸酯和丙烯酸羥乙酯為原料，經反應先制得改性丙烯酸羥異佛爾酮二異氰酸酯，而后分別與低分子量聚醚及氨基有機硅烷反應制得聚醚低聚體和硅烷改性低聚體，以此預聚體為主原料，再和雙酚A型丙烯酸環氧酯、光敏劑等復合制得一種新型涂料。該涂料用于玻璃涂覆固化后涂膜硬度≥H，附著力0級， 耐磨性RCA 175g≥300次，涂膜外觀平整光滑，柔韌性1mm，光澤度≥90，綜合性能優良。 
關鍵詞：紫外光固化；聚氨酯；有機硅改性；預聚體；合成

Abstract: ： Ultraviolet curing is one of the fastest curing methods in the coating industry, films cured by UV radiation has the properties of high chemical resistance ，excellent physical strength and very good gloss．In this paper, the synthesis of modified polyurethane acrylates are the products of organic silicon polyol modified. Test results show that: the silane coupling agent successful grafted on urethane acrylates were on the product, dry time table, heat resistant adhesive strength, water has improved greatly.
 In this paper, isophorone diisocyanate and hydroxyethyl acrylate as raw materials, first obtained by the reaction of modified hydroxyl isophorone diisocyanate, and then separately with low molecular weight polyether and amino silane reaction of polyether low Silane modified polymers and oligomers, this pre-polymer-based materials, and then, and bisphenol A type epoxy acrylate ester, a photosensitizer such as composite A new type of paint. The cured coating film for glass coating hardness ≥ H, 0 adhesion, abrasion resistance RCA 175g ≥ 300 times, coating appearance of smooth, flexible 1mm, gloss ≥ 90, good overall performance.
Keywords：UV curing, Polyurethane, Organic silicone modified, Prepolymer, Synthesis,