Polypropylene components with improved mechanical properties through adjustment of the morphologies (T10# (Antr.T04))
通过调整形态改善机械性能的聚丙烯组件(T10
基本信息
- 批准号:517516156
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Collaborative Research Centres (Transfer Project)
- 财政年份:2023
- 资助国家:德国
- 起止时间:2022-12-31 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Polypropylene is a commodity polymer that has not completely established a position in the laser-based powder bed fusion (PBF-LB/P) market since existing systems do not yet exploit the full potential of the polypropylene material. This is the starting point for the joint project's objectives, which mainly include improving the mechanical performance of polypropylene components through targeted micro and macrostructure modification. As a result, nucleating agents are used to adjust the crystallization modification and spherulite size of the part. First, the crystallization behavior of specific selected nucleating agents is investigated under process conditions in the laboratory to ensure that the phases are stable under process boundary conditions. Next, the process investigations are conducted with selected systems, and the mechanical properties are analyzed. Using these results, the best modifications for Polypropylene in PBF-LB/P are determined. Furthermore, a general statement about the influence of the microstructure in PBF-LB/P is made. Since the entire process chain is represented beginning with synthesis the chemical structure of polypropylene is set via in situ synthesizing (heterophasic copolymers, terpolymer of propylene-1-butene-ethylene), and the mechanical compounding (ex situ) of various polypropylene with elastomeric contents is considered. This enables a thorough examination on the impact of the various approaches to incorporating the elastic components in the polypropylene matrix on the process. Similarly, the potential for a tailored material synthesis makes it possible to investigate various elastic components, enabling the system to be specifically tailored to the needs. Overall, it is possible to fully utilize the mechanical properties of this intricate material system, revealing new applications that call for ductile material behaviors.
聚丙烯是一种商品聚合物,尚未在基于激光的粉末床熔合(PBF-LB/P)市场中完全确立地位,因为现有系统尚未开发聚丙烯材料的全部潜力。这是联合项目目标的起点,主要包括通过有针对性的微观和宏观结构改性来提高聚丙烯部件的机械性能。因此,使用成核剂来调节部件的结晶改性和球晶尺寸。首先,在实验室中的工艺条件下研究特定选择的成核剂的结晶行为,以确保在工艺边界条件下相是稳定的。接下来,对选定的系统进行工艺研究,并分析机械性能。利用这些结果,确定了PBF-LB/P中聚丙烯的最佳改性。并对PBF-LB/P复合材料的微观结构对其性能的影响进行了综述。由于整个工艺链从合成开始,聚丙烯的化学结构通过原位合成(多相共聚物,丙烯-1-丁烯-乙烯的共聚)来设定,并且考虑了具有弹性体含量的各种聚丙烯的机械配混(非原位)。这使得能够彻底检查将弹性组分掺入聚丙烯基质中的各种方法对工艺的影响。同样,定制材料合成的潜力使得研究各种弹性组件成为可能,从而使系统能够根据需求进行专门定制。总的来说,可以充分利用这种复杂材料系统的机械性能,揭示需要韧性材料行为的新应用。
项目成果
期刊论文数量(0)
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其他文献
吉治仁志 他: "トランスジェニックマウスによるTIMP-1の線維化促進機序"最新医学. 55. 1781-1787 (2000)
Hitoshi Yoshiji 等:“转基因小鼠中 TIMP-1 的促纤维化机制”现代医学 55. 1781-1787 (2000)。
- DOI:
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LiDAR Implementations for Autonomous Vehicle Applications
- DOI:
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2021 - 期刊:
- 影响因子:0
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吉治仁志 他: "イラスト医学&サイエンスシリーズ血管の分子医学"羊土社(渋谷正史編). 125 (2000)
Hitoshi Yoshiji 等人:“血管医学与科学系列分子医学图解”Yodosha(涉谷正志编辑)125(2000)。
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Effect of manidipine hydrochloride,a calcium antagonist,on isoproterenol-induced left ventricular hypertrophy: "Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,K.,Teragaki,M.,Iwao,H.and Yoshikawa,J." Jpn Circ J. 62(1). 47-52 (1998)
钙拮抗剂盐酸马尼地平对异丙肾上腺素引起的左心室肥厚的影响:“Yoshiyama,M.,Takeuchi,K.,Kim,S.,Hanatani,A.,Omura,T.,Toda,I.,Akioka,
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