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首页> 外文会议>2001 a Materials and Processes Odyssey >NOVEL BINDER SYSTEMS DERIVED FROM POLY(ETHYLENE TEREPHTHALATE) PET WASTE FOR SOLVENTLESS MAGNETIC TAPE MANUFACTURING. I. INVESTIGATION OF THE MECHANICAL PROPERTIES OF THE ACRYLATED OLIGOMERS
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NOVEL BINDER SYSTEMS DERIVED FROM POLY(ETHYLENE TEREPHTHALATE) PET WASTE FOR SOLVENTLESS MAGNETIC TAPE MANUFACTURING. I. INVESTIGATION OF THE MECHANICAL PROPERTIES OF THE ACRYLATED OLIGOMERS

机译：源自聚乙烯（对苯二甲酸乙二酯）PET废料的新型粘合剂体系，用于溶剂化磁性胶带制造。一，丙烯酸酯化低聚物力学性能的研究

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PET waste obtained from beverage bottles was first depolymerized by glycolysis reaction by using diethylene glycol (DEG) as glycolyzing system and manganese acetate as a transesterification catalyst. The glycolysis reaction was conducted at two different molar ratios of PET:DEG, namely (1:2.15 and 1:1.03), for the sake of obtaining oligoesters polyols of varying molecular weights. The obtained oligoester polyols were purified and characterized for hydroxyl values (mg KOH/g). Modification of the obtained oligoester polyols was carried out by acrylation or methacrylation reactions of the available hydroxyl groups by acryloyl chloride or methacryloyl chloride. This gave oligoester polyols curable under UV or electron beam irradiation. The curability of these newly synthesized acrylated/methacrylated oligoesters was tested by UV irradiation, in the presence of 2-benzyl-2-dimethylamino-l-(4-morphUnophenyl)-l-butanone (BDMB) as a photo initiator. This gave cured films of high mechanical properties when it was either cured solely or as mixtures with other commercially available diacrylate/dimethacrylate monomers. The measured tensile properties were in the range of (4.62 - 45 MPa) for maximum tensile strength and (0.074 - 2.0 GPa) for Young's modulus.
机译：首先，以二甘醇（DEG）为糖化体系，乙酸锰为酯交换催化剂，通过糖酵解反应使从饮料瓶中获得的PET废料解聚。为了获得具有不同分子量的低聚酯多元醇，在PET：DEG的两种不同摩尔比（即（1：2.15和1：1.03））下进行糖酵解反应。纯化获得的低聚酯多元醇并表征羟基值（mg KOH / g）。通过可用丙烯酰氯或甲基丙烯酰氯对可用羟基进行的丙烯酸酯化或甲基丙烯酸酯化反应，对所得的低聚酯多元醇进行改性。这产生了在UV或电子束辐射下可固化的低聚酯多元醇。在作为光引发剂的2-苄基-2-二甲基氨基-1-（4-morphUnophenyl）-1-丁酮（BDMB）的存在下，通过UV照射来测试这些新合成的丙烯酸酯/甲基丙烯酸酯化的低聚酯的固化性。当它单独固化或与其他市售二丙烯酸酯/二甲基丙烯酸酯单体混合固化时，可得到具有高机械性能的固化膜。对于最大拉伸强度，测得的拉伸性能在（4.62-45 MPa）范围内，对于杨氏模量，在（0.074-2.0 GPa）范围内。

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