• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Resin, cure, and polymer properties of photopolymerizable resins containing bio-derived isosorbide
【24h】

Resin, cure, and polymer properties of photopolymerizable resins containing bio-derived isosorbide

机译：含有生物衍生的异山梨醇的可光聚合树脂的树脂，固化和聚合物性质

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have developed photocurable bio-derived isosorbide (meth)acrylates for use in photoinitiated additive manufacturing (AM). We have shown that the viscosity of isosorbide-based resins obeyed logarithmic rule of mixtures, and the viscosity values were significantly lower than that of commercial stereolithography (SLA) resins as well as various other urethane (meth)acrylates and bisphenol A (meth)acrylates-containing blends. Using isobornyl acrylate or 4-acryloylmorpholine as reactive diluents, we were able to reduce the brittleness of the isosorbide-based polymers and retain high glass transition temperatures (T-g) of up to 231 degrees C. The isosorbide-based resins were still somewhat brittle but had both greater T-g and strength relative to analogous bisphenol A dimethacrylate resins. Addition of oligomeric urethane (meth)acrylate crosslinkers further improved the mechanical properties of the polymers, whereby the strength approximately doubled to 55 MPa at 25 degrees C, while maintaining high thermal properties, T-g > 190 degrees C, and low viscosities, <140 cP, that are desirable for photoinduced AM applications. Furthermore, we were able to print this resin using SLA which produced specimens with similar moduls, but reduced strength relative to photocured resins and a commercial high temperature SLA resin.
机译：我们开发了光固化生物衍生异山梨酯（甲基）丙烯酸酯，用于光引发添加剂制造（AM）。我们已经证明，基于异山梨酯的树脂的粘度服从混合物的对数规则，并且粘度值显著低于商业立体光刻（SLA）树脂以及各种其他含有氨基甲酸酯（甲基）丙烯酸酯和双酚A（甲基）丙烯酸酯的混合物的粘度值。使用丙烯酸异冰片酯或4-丙烯酰吗啉作为活性稀释剂，我们能够降低异山梨酯基聚合物的脆性，并保持高达231℃的高玻璃化转变温度（T-g）。异山梨酯基树脂仍然有些脆性，但与类似的双酚A二甲基丙烯酸酯树脂相比，具有更大的T-g和强度。添加低聚氨基甲酸酯（甲基）丙烯酸酯交联剂进一步改善了聚合物的机械性能，从而在25℃时强度大约翻了一番，达到55 MPa，同时保持高热性能，T-g>190℃，低粘度，<140 cP，这对于光诱导AM应用是理想的。此外，我们能够使用SLA打印该树脂，该SLA生成具有类似模量的样本，但与光固化树脂和商用高温SLA树脂相比强度降低。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号