紫外光硬化聚氨酯壓克力樹脂之合成與性質研究

The synthesis and properties of UV-curable polyurethane acrylate resin

黃郁迪(Yu-Di Huang)

指導教授 ： 段葉芳

國立臺北科技大學/工程學院/化學工程研究所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00124

摘要

本研究以異氰酸酯、多元醇加入丙烯酸酯，藉由改變硬鏈段之組成，合成兩種成分不同的聚氨基丙烯酸酯，並將兩種預聚物與三種不同官能基之稀釋單體以及光起始劑依照不同重量百分比濃度摻混成不同配方，照光後得到紫外光硬化聚氨基丙烯酸酯聚合物。各樣品照光10s內皆可硬化得到產品，分別以傅立葉轉紅外線光譜儀(FTIR)、核磁共振儀(NMR)來鑑定聚氨基丙烯酸酯結構，用凝膠滲透層析儀(GPC)測量分子量，用示差掃描熱分析儀(DSC)、熱重量分析儀(TGA)、拉伸測試、及硬度測試來探討預聚物與壓克力稀釋單體不同配方比的各種性質。
測試結果在熱裂解溫度方面，Oligomer B(IPDI-PCDL-HEA)的熱裂解溫度高於Oligomer A(HDI-PCDL-HEA)。而Oligomer A和B在加入不同個數官能基的單體之後，熱重損失溫度均隨著增加的量而升高。在玻璃轉移溫度方面，Oligomer B的玻璃轉移溫度高於Oligomer A，而在Oligomer A和B系列中加入不同個數官能基的單體之後，隨著單體的增加玻璃轉移溫度些微增加。在拉伸測試中，Oligomer A在抗拉強度、伸長率、楊氏係數測量的結果皆小於Oligomer B，與硬度測試所得到的結果相符合，材料剛性越強硬度越大，其楊氏係數越大。在Oligomer A和B系列中加入不同官能基的單體後，各樣品的抗拉強度和楊氏係數均增加，而伸長率有下降的趨勢，代表加入單體後使性質變得較硬，機械性質相對提升且材料的脆性增加，而樣品裡bE系列的楊氏係數和抗拉強度最好，代表機械性質較好。

關鍵字

UV光硬化 ； 聚氨酯 ； 壓克力單體

並列摘要

In this study, an isocyanates and polyols was added to acrylate by changing the composition of the hard segment to synthesize two different components of polyurethane acrylate.
Two prepolymers, three different functional groups dilute acrylate monomers and photoinitiator mixed according to different weight percent concentrations. After irradiation of UV , obtain UV-curing polyurethane acrylate.
Each sample can be hardened by illuminated within 10s. Using Fourier Transfer Infrared Spectroscopy (FTIR) and Nuclear Magnetic Resonance (NMR) to identify the structure of polyurethane acrylate. Molecular weight is measured by gel permeation chromatography(GPC).Comparison the properties of the mixture with different formulation ratios of dilute acrylate monomers and prepolymers by Differential Scanning Calorimetry(DSC), Thermal Gravimetric Analyzer (TGA), tensile test and hardness test.
The test results show the thermal decomposition temperature of oligomer B(IPDI-PCDL-HEA) is higher than that of Oligomer A(HDI-PCDL-HEA). After the addition of different functional groups of the monomers, the decomposition temperature of Oligomer A and Oligomer B increase with the adding volume of monomers. The glass transition temperature of Oligomer B is higher than that of Oligomer A. After the addition of different functional groups of the monomers, the glass transition temperature of Oligomer A and Oligomer B increase slightly.
In tensile tests, the tensile strength, elongation and Young's modulus of Oligomer A were less than that of Oligomer B, comply with the results obtained by hardness test. The larger the material hardness, the greater the Young's modulus.
After the addition of different functional groups of the monomers, the tensile strength and Young's modulus of Oligomer A and Oligomer B series both increase but decrease in elongation. After the addition of the monomer, improve the mechanical properties of Oligomer A and Oligomer B series and make them more fragility. The sample series code bE have the highest Young's modulus and tensile strength and the best mechanical properties.

並列關鍵字

UV curing ； polyurethane ； Acrylate Monomers

參考文獻

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