Crystallization behavior and mechanical properties of polypropylene copolymer byin situ copolymerization with a nucleating agent and/or nano-calcium carbonate

2003 ◽  
Vol 91 (1) ◽  
pp. 431-438 ◽  
Author(s):  
Weiping Zhu ◽  
Guangping Zhang ◽  
Jianyong Yu ◽  
Gance Dai
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Crystallization Behavior ◽  
Nucleating Agent

scholarly journals Properties Enhancement of High Molecular Weight Polylactide Using Stereocomplex Polylactide as a Nucleating Agent

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1725
Author(s):  
Purba Purnama ◽  
Muhammad Samsuri ◽  
Ihsan Iswaldi
Keyword(s):  
Mechanical Properties ◽  
Molecular Weight ◽  
Crystallization Behavior ◽  
Testing Machine ◽  
Nucleating Agent ◽  
Mechanical And Thermal Properties ◽  
Nucleating Agents ◽  
Thermal And Mechanical Properties ◽  
X Ray ◽  
Universal Testing

As one of the most attractive biopolymers nowadays in terms of their sustainability, degradability, and material tune-ability, the improvement of polylactide (PLA) homopolymer properties by studying the utilization of stereocomplex polylactide (s-PLA) effectively and efficiently is needed. In this sense, we have studied the utilization of s-PLA compared to poly D-lactide (PDLA) homopolymers as a nucleating agent for PLA homopolymers. The mechanical and thermal properties and crystallization behavior of PLA homopolymers in the presence of nucleating agents have been evaluated using a universal testing machine, differential scanning calorimeter, and X-ray diffractometer instruments, respectively. PDLA and s-PLA materials can be used to increase the thermal and mechanical properties of poly L-lactide (PLLA) homopolymers. The s-PLA materials increased the mechanical properties by increasing crystallinity of the PLLA homopolymers. PLLA/s-PLA enhanced mechanical properties to a certain level (5% s-PLA content), then decreased them due to higher s-PLA materials affecting the brittleness of the blends. PDLA homopolymers increased mechanical properties by forming stereocomplex PLA with PLLA homopolymers. Non-isothermal and isothermal evaluation showed that s-PLA materials were more effective at enhancing PLLA homopolymer properties through nucleating agent mechanism.

Mechanical properties and crystallization behavior of polypropylene with cyclodextrin derivative as β-nucleating agent

2011 ◽  
Vol 289 (10) ◽  
pp. 1157-1166 ◽  
Author(s):  
Anran Zeng ◽  
Yuying Zheng ◽  
Shangchang Qiu ◽  
Yong Guo ◽  
Baoming Li
Keyword(s):  
Mechanical Properties ◽  
Crystallization Behavior ◽  
Nucleating Agent ◽  
Cyclodextrin Derivative

Influence of a synthetic ureido nucleating agent on crystallization behavior and mechanical properties of polyamide 6

2015 ◽  
Vol 55 (9) ◽  
pp. 2011-2017 ◽  
Author(s):  
Chunfa Ouyang ◽  
Weili Xue ◽  
Duoyou Zhang ◽  
Qun Gao ◽  
Xiangyong Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Crystallization Behavior ◽  
Nucleating Agent ◽  
Polyamide 6

Effects of nanoparticle treatment on the crystallization behavior and mechanical properties of polypropylene/calcium carbonate nanocomposites

2006 ◽  
Vol 102 (4) ◽  
pp. 3480-3488 ◽  
Author(s):  
Weitao Wan ◽  
Demei Yu ◽  
Yunchuan Xie ◽  
Xiusheng Guo ◽  
Wandi Zhou ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Crystallization Behavior
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