STRUCTURE AND PROPERTIES OF &lt;I&gt;i&lt;/I&gt;PP/MODIFIED NANO-CaCO&lt;SUB&gt;3&lt;/SUB&gt; COMPOSITES

Li, Liangzhao; Zhang, Xiuqin; Luo, Fa; Zhao, Ying Na; Wang, Dujin

doi:10.3724/sp.j.1105.2011.10334

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…This is attributed to the surface modification of calcium sulfate particles, which leads to an increase in their dispersion in the matrix. According to the percolation theory of rigid particle toughened polymers, 37 when the distance between particles is less than the critical distance, the matrix ligament layer around the particles will yield, hindering the development of cracks, its mechanical properties will be improved. Therefore, when the content of modified calcium sulfate is more than 25 wt%, the impact strength is improved.…”

Section: Resultsmentioning

confidence: 99%

Synergistic surface modification of anhydrous calcium sulfate by polydopamine/oleylamine and its application in reinforced HDPE composites

Xu,

Fang,

Chen

2024

Polymer Composites

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In the study, polydopamine and oleylamine cooperated to modify the surface of anhydrous calcium sulfate prepared from phosphogypsum, and HDPE matrix composites with different filler content were prepared by filling HDPE before and after modification. The results show that when the filler content is 5 wt%, the elongation at break of mCSA/HDPE composite is 31.7% and 89% higher than that of HDPE and CSA/HDPE. Respectively, when the filler content is as high as 25 wt%, the flexural strength is still 16.8% higher than that of HDPE. After modification, the compatibility and dispersibility of anhydrous calcium sulfate in HDPE were improved, and the crystal structure of anhydrous calcium sulfate was not significantly changed, thus the mechanical properties and thermal stability of mCSA/HDPE composites were improved. Overall, after modification, not only the mechanical properties of the composites are improved, but also the content of inorganic powder as filler added to HDPE is increased, which can be regarded as a method for effective utilization of phosphogypsum.Highlights Calcium sulfate was modified by polydopamine and oleylamine The mechanical and thermal properties of the modified calcium sulfate/HDPE composites are good. The resource utilization of phosphogypsum was carried out

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Section: Resultsmentioning

confidence: 99%

Synergistic surface modification of anhydrous calcium sulfate by polydopamine/oleylamine and its application in reinforced HDPE composites

Xu,

Fang,

Chen

2024

Polymer Composites

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“…Most literature focused on modified nano-CaCO 3 composite and related crystallization kinetics ] [18][19][20][21] . Previous work reported double crystallization behavior in iPP=nano-CaCO 3 composites [21] .…”

Section: Introductionmentioning

confidence: 99%

Morphology, Crystallization and Dynamical Mechanical Behavior of iPP/Nano-CaCO₃Composites

Song

Tang

2012

Polymer-Plastics Technology and Engineering

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This article describes our study of crystallization behavior of nano-CaCO 3 -filled polypropylene under nonisothermal from the melt by differential scanning calorimetry (DSC). Morphology observation indicated with increasing CaCO 3 content the aggregates increased. Nano-CaCO 3 acted as nucleating site during nonisothermal crystallization in all iPP/nano-CaCO 3 composites. For nonisothermal crystallization kinetic studies, the result indicated that the Jeziorny and Ozawa approach cannot adequately describe the nonisothermal crystallization kinetic of iPP composite. In addition, Mo equation was employed to describe the nonisothermal crystallization kinetic process with satisfied results. Dynamic mechanical analysis indicated with increasing CaCO 3 content the glass transition decreased slightly.

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“…For example, polylactide=poly (butylenes adipate-co-terephthalate) blends have poor elongation at break due to their poor miscibility [9] . Addition of modification agent, such as plasticizer and filler [10][11][12][13][14][15] , was one method to improve miscibility properties in polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Novel Biodegradable Polylactide/Poly(butylene succinate) Composites via Cross-Linking with Methylene Diphenyl Diisocyanate

Song

Tang

2013

Polymer-Plastics Technology and Engineering

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A novel polylactide/poly(butylene succinate) composite via cross-linking with methylene diphenyl diisocyanate was used. The methylene diphenyl diisocyanate (MDI) was to couple with end hydroxyl of polylactide and poly(butylene succinate) by a torque rheometer and the samples were compression molded into plate successfully. A series of composites was studied with various amounts of poly(butylene succinate) (PBS) from 0 to 40 wt%. Tensile test results demonstrated that the elongation at break of the MDI-based PLA/PBS composites increased greatly compared with PLA/PBS, PLA and PBS. Fourier transform infrared spectroscopy (FTIR) tests indicated the MDI-based composite showed a new urethane bond among different components. Melting Flow Rate (MFR) in PLA/PBS composites decreased with increasing PBS content.

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STRUCTURE AND PROPERTIES OF <I>i</I>PP/MODIFIED NANO-CaCO<SUB>3</SUB> COMPOSITES

Cited by 6 publications

References 13 publications

Synergistic surface modification of anhydrous calcium sulfate by polydopamine/oleylamine and its application in reinforced HDPE composites

Synergistic surface modification of anhydrous calcium sulfate by polydopamine/oleylamine and its application in reinforced HDPE composites

Morphology, Crystallization and Dynamical Mechanical Behavior of iPP/Nano-CaCO₃Composites

Novel Biodegradable Polylactide/Poly(butylene succinate) Composites via Cross-Linking with Methylene Diphenyl Diisocyanate

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STRUCTURE AND PROPERTIES OF <I>i</I>PP/MODIFIED NANO-CaCO<SUB>3</SUB> COMPOSITES

Cited by 6 publications

References 13 publications

Synergistic surface modification of anhydrous calcium sulfate by polydopamine/oleylamine and its application in reinforced HDPE composites

Synergistic surface modification of anhydrous calcium sulfate by polydopamine/oleylamine and its application in reinforced HDPE composites

Morphology, Crystallization and Dynamical Mechanical Behavior of iPP/Nano-CaCO3Composites

Novel Biodegradable Polylactide/Poly(butylene succinate) Composites via Cross-Linking with Methylene Diphenyl Diisocyanate

Contact Info

Product

Resources

About

Morphology, Crystallization and Dynamical Mechanical Behavior of iPP/Nano-CaCO₃Composites