3-DIMENSIONAL PRINTING WITH SHAPE MEMORY POLYMERS

熔融沉积成型（FDM）是一种增材制造技术。FDM，也称为 3-三维（3D）打印是一项快速发展的技术，在世界各地有许多应用。 大多数公司都与FDM Machines合作，设计和测试他们的机器， 热塑性丙烯腈-丁二烯-苯乙烯（ABS）或聚乳酸（PLA）长丝。然而，至关重要的是， 为了将不同类型的长丝用于具有不同机械性能的更广泛的应用 要求.这对于目前尚未发挥潜力的行业尤为重要 3D打印技术可能给他们的业务带来的优势，如生物医学领域和模具 为铁砂铸造厂生产。形状记忆聚合物是一类重要的聚合物 有很大的潜力可以用作3D打印的细丝。这些智能聚合物可以储存一个临时形状 并在施加外部刺激如热或光时恢复其原始形状。目前，SMP 用于广泛的应用，包括生物医学和纺织工业。Machina Corp.，一个 总部位于阿尔伯塔的加拿大公司，有兴趣在3D中生产和使用热塑性SMP作为长丝 打印应用，因为商业上它从来没有做过。对公司来说至关重要的是 高品质和一致的最终产品;因此，该公司坚信，调查 在3D打印应用中生产和潜在使用SMP最好通过适当指导的研究来完成 该项目揭示了在3D打印中使用SMP的基本理解。该提案涉及 两个主要概念，（1）使用一种或多种聚合物从SMP粒料生产连续和高质量SMP长丝， 挤出机，和（2）3D打印SMP材料的热机械表征。至关重要 哥伦比亚拥有的公司在这一领域开发尖端技术和产品，以保持其 具有重要战略意义的全球市场份额。拟议的工作是朝着这一目标迈出的重要一步 公司的最终目标。

Fused Deposition Modelling (FDM) is an additive manufacturing technology. FDM, also known as 3-Dimensional (3D) printing, is a rapidly growing technology with numerous applications around the world. The majority of companies work with FDM Machines design and test their machines to work with thermoplastic Acrylonitrile Butadiene Styrene (ABS) or Polylactic Acid (PLA) filaments. It is however crucial to utilize different types of filaments for broader range of applications with different mechanical property requirements. This is especially important for industries that have not currently realized the potential advantages that 3D printing technology may bring to their businesses, such as biomedical sector and mold production for iron sand casting plants. Shape memory polymers (SMPs) are one important family of polymers that have great potential to be used as 3D printing filaments. These smart polymers can store a temporary shape and restore their original shape upon application of an external stimulus, such as heat or light. Currently, SMPs are utilized in a broad range of applications including biomedical and textile industry. Machina Corp., an Alberta based Canadian company, is interested in producing and using thermoplastic SMPs as filaments in 3D printing applications as commercially it has never been done before. It is crucial for the company to achieve high quality and consistent end-products; therefore, the company strongly believes that investigating the production and potential use of SMPs in 3D printing applications is best done via a properly guided research project that reveals a fundamental understanding of use the of SMPs in 3D printing. The proposal deals with two main concepts, (1) production of continuous and high quality SMP filaments from SMP pellets using an extruder, and (2) thermomechanical characterization of 3D printed SMP materials. It is crucial that Canadian-owned companies develop cutting-edge technology and products in this sector to keep their strategically important worldwide market share. The proposed work is a an important step towards this end-goal of the company.