Combined effect of β-nucleating agent and processing melt temperature on the toughness of impact polypropylene copolymer

2012 ◽  
Vol 62 (2) ◽  
pp. 172-178 ◽  
Author(s):  
Feng Luo ◽  
Chenlong Xu ◽  
Nanying Ning ◽  
Ke Wang ◽  
Hua Deng ◽  
...  
Keyword(s):  
Nucleating Agent ◽  
Combined Effect ◽  
Melt Temperature ◽  
Impact Polypropylene Copolymer

Effect of Arenga Pinnata “Ijuk” Fiber as Nucleating Agent on Crystallization Kinetics of Impact Polypropylene Copolymer

2018 ◽  
Vol 923 ◽  
pp. 56-60 ◽  
Author(s):  
Mochamad Chalid ◽  
Evana Yuanita ◽  
Ghiska Ramahdita ◽  
Jaka Fajar Fatriansyah
Keyword(s):  
Crystal Growth ◽  
Crystallization Kinetics ◽  
Nucleating Agent ◽  
Avrami Equation ◽  
Nucleating Agents ◽  
Impact Polypropylene Copolymer ◽  
Kinetics Of

Impact Polypropylene Copolymer (IPC) is one of the PP type which is widely used. IPC was made with addition of ethylene in PP which decreases PP crystallinity. Many efforts have been made to improve the properties of PP crystallinity by addition of nucleating agents. In this study, we use Arenga Pinnata “Ijuk” fiber as PP nucleating agent. In order to determine the effect of “Ijuk” fiber as nucleating agents in kinetics aspect, we used DSC measurement based on Avrami equation. The results showed that the addition of ijuk decreases crystallizationhalf timeand dimension of crystal growth which indicate the effects of “Ijuk” fiber as a nucleating agent.

Toughening mechanism in impact polypropylene copolymer containing a β-nucleating agent

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23117-23125 ◽  
Author(s):  
Biwei Qiu ◽  
Feng Chen ◽  
Yonggang Shangguan ◽  
Yu Lin ◽  
Qiang Zheng ◽  
...  
Keyword(s):  
Nucleating Agent ◽  
Toughening Mechanism ◽  
Shear Yielding ◽  
Impact Polypropylene Copolymer ◽  
Stress Whitening

The voids in β-nucleated IPC could help to ease craze formation and multiply shear yielding while extensive stress whitening phenomenon appears in neat IPC.

Increased nucleation efficiency of an in situ–formed β-nucleating agent for impact polypropylene copolymer

2019 ◽  
Vol 26 (10) ◽  
Author(s):  
Lan Chen ◽  
Yaoding Yang ◽  
Zhong Xin ◽  
Wei Qin ◽  
Shuai Zhou ◽  
...  
Keyword(s):  
Nucleating Agent ◽  
Impact Polypropylene Copolymer

scholarly journals Insight into the Role of a Isophthalic Dihydrazide Derivative Containing Piperonylic Acid in Poly(L-lactide) Nucleation: Thermal Performances and Mechanical Properties

2020 ◽  
Vol 57 (3) ◽  
pp. 28-40
Author(s):  
Hao Huang ◽  
Yan-Hua Zhang ◽  
Li-Sha Zhao ◽  
Guang-Ming Luo ◽  
Yan-Hua Cai
Keyword(s):  
Mechanical Properties ◽  
Nucleating Agent ◽  
Melting Behavior ◽  
Decomposition Temperature ◽  
Melting Peak ◽  
Melt Crystallization ◽  
Scanning Calorimetry ◽  
Melt Temperature ◽  
Onset Crystallization Temperature ◽  
Tensile Tester

This work was aimed at synthesizing the N, N -isophthalic bis(piperonylic acid) dihydrazide (PAID) to be as a new crystallization accelerator for poly(L-lactide) (PLLA), and a detailed investigations of the non-isothermal crystallization, melting behavior, thermal decomposition behavior and mechanical properties of PLLA nucleated by PAID were performed applying differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and electronic tensile tester. The melt-crystallization proved that the PAID could act as a heterogeneous nucleating agent to significantly promote the crystallization in cooling, even the crystallization was still able to be accelerated upon the fast cooling at 50 oC/min. The final melt temperature was another crucial factor for PLLA�s melt crystallization, and when the final melt temperature was 170 oC, the onset crystallization temperature and melt-crystallization enthalpy was almost up to 150 oC and 56.8 J/g upon cooling of 1 oC/min, respectively. Furthermore, the chemical nucleation was proposed to be the nucleation mechanism of PAID for PLLA via the preliminary theoretical calculation. For the cold-crystallization, the addition of PAID exhibited an inhibition for the crystallization of PLLA, but the total crystallization process depended on the heating rate and PAID concentration. The single melting peak after cooling of 1 oC/min indicated that the crystallization had been thoroughly completed in cooling. Additionally, the single melting peak with different locations after full crystallization resulted from the different crystallization temperatures. A comparison in the onset decomposition temperature implied that the presence of PAID only slightly decreased the thermal stability of PLLA. The mechanical testing showed that, in contrast with the elongation at break, the existence of PAID enhanced the tensile strength of PLLA.

scholarly journals Crystallization Kinetics Study of Impact Polypropylene Copolymer with Kenaf as Nucleating Agent and Reinforcement

2019 ◽  
Vol 10 (5) ◽  
pp. 999 ◽  
Author(s):  
Jaka Fajar Fatriansyah ◽  
Muhammad Joshua Yuriansyah Barmaki ◽  
Rahma Lailani ◽  
Mochamad Chalid
Keyword(s):  
Crystallization Kinetics ◽  
Nucleating Agent ◽  
Kinetics Study ◽  
Impact Polypropylene Copolymer

Combined effect of nucleating agent and plasticizer on the crystallization behaviour of polylactide

2017 ◽  
Vol 74 (12) ◽  
pp. 4857-4886 ◽  
Author(s):  
Jon Anakabe ◽  
A. M. Zaldua Huici ◽  
Arantxa Eceiza ◽  
Aitor Arbelaiz ◽  
Luc Avérous
Keyword(s):  
Nucleating Agent ◽  
Combined Effect ◽  
Crystallization Behaviour

Toughness Reinforcement in Carbon Nanotube-Filled High Impact Polypropylene Copolymer with β-Nucleating Agent

2016 ◽  
Vol 55 (32) ◽  
pp. 8733-8742 ◽  
Author(s):  
Yanhui Chen ◽  
Song Yang ◽  
Haoqing Yang ◽  
Min Zhang ◽  
Qiuyu Zhang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Nucleating Agent ◽  
High Impact ◽  
Impact Polypropylene Copolymer
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