Precipitated Calcium Carbonate Hybrid Hydrogels: Structural and Mechanical Properties

2009 ◽  
Vol 42 (17) ◽  
pp. 6606-6613 ◽  
Author(s):  
Murat Guvendiren ◽  
Paul A. Heiney ◽  
Shu Yang
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Precipitated Calcium Carbonate ◽  
Hybrid Hydrogels

Acicular precipitated calcium carbonate as inorganic whisker for reinforcing of polypropylene fibers

e-Polymers ◽  
2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Roland Vogel ◽  
Regine Boldt ◽  
Marijan Vučak ◽  
Christoph Nover ◽  
Liane Häussler ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Surface Coating ◽  
Melt Spinning ◽  
Polypropylene Fibers ◽  
Precipitated Calcium Carbonate ◽  
Reinforcing Effect ◽  
Melt Spun ◽  
Concentration Surface

Abstract Acicular precipitated calcium carbonate (PCC) was used as appropriate inorganic whisker for improving the mechanical properties of melt spun polypropylene fibers. Nucleation effects of the PCC in dependence to concentration, surface coating and pre-shearing were analyzed. Melt-spinning experiments were carried out in order to determine the reinforcing effect.

scholarly journals Effect of Calcium Carbonate on the Mechanical Properties and Microstructure of Red Clay

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Lijie Chen ◽  
Xuejun Chen ◽  
Xin Yang ◽  
Pengyan Bi ◽  
Xiang Ding ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Carbonate Content ◽  
Shear Tests ◽  
Red Clay ◽  
Precipitated Calcium Carbonate ◽  
Sem Images ◽  
Clay Particles ◽  
Calcium Carbonate Content ◽  
Analysis System

The influence of precipitated calcium carbonate on the strength and microstructure of red clay was studied. Precipitated calcium carbonate was added to red clay at ratios of 0%, 5%, 10%, 15%, and 20%. Shear tests were carried out on the samples to observe the effect of calcium carbonate on the mechanical properties of red clay. The results showed that, with increasing calcium carbonate content, the strength of red clay first decreased and then increased. The maximum strength was obtained for the sample with 20% calcium carbonate. Scanning electron microscopy (SEM) was used to observe the changes in microstructure caused by addition of calcium carbonate. The pores and cracks analysis system (PCAS) was used to quantitatively characterize the microstructure changes detected in SEM images. The addition of calcium carbonate decreased the pore area and increased the total number of pores of red clay. The incorporation of calcium carbonate caused the red clay particles to agglomerate. The higher the calcium carbonate content, the stronger the agglomeration of red clay particles in the soil samples.

The impact of zeolite filler on ageing and mechanical failure of paper

2018 ◽  
Vol 33 (3) ◽  
pp. 512-521 ◽  
Author(s):  
Merve Engin ◽  
Celil Atik
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Filler Content ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Accelerated Ageing ◽  
Filler Materials ◽  
Precipitated Calcium Carbonate ◽  
The Impact ◽  
Qualitative Discussion

Abstract The choice of the filler type for paper materials has been a qualitative discussion. The mineral precipitated calcium carbonate (PCC) is used in considerable quantities in the pulp and paper industry as filler. However, alternative filler materials have been researched for improving the properties of paper. In this work, a domestic zeolite (clinoptilolite) filler was used separately and mixed with precipitated calcium carbonate (PCC) fillers. Indeed, the objective of our approach was to explore the structural and mechanical properties of handsheets having filler content affected as a function of accelerated ageing. The results confirmed that the mixed furnish of zeolite and PCC fillers provides positive and synergistic effect on the mechanical properties of ageing handsheets at the low content.

scholarly journals Effect of Nano–Precipitated Calcium Carbonate on Mechanical Properties of PVC–U/Acrylic Blend

2012 ◽  
Author(s):  
Aznizam Abu Bakar ◽  
Nurul Nazihah Mohmed Rosli
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Vinyl Chloride ◽  
High Speed ◽  
Flexural Modulus ◽  
Young Modulus ◽  
Precipitated Calcium Carbonate ◽  
Poly Vinyl Chloride ◽  
The Matrix ◽  
The Impact

Perkembangan nanokomposit berasaskan polimer dan pengisi bersaiz nano telah menjadi pendekatan yang menarik untuk mencapai sifat komposit yang baik. Kesan nano–termendak kalsium karbonat (NPCC) terhadap sifat mekanikal matrik berlainan kemuluran telah dikaji. Poli(vinil klorida) tanpa pemplastik (PVC–U) dan PVC–U/akrilik telah digunakan sebagai matrik pada kajian ini. Untuk menghasilkan komposit, resin PVC, additif, akrilik dan NPCC pada mulanya diadun-kering menggunakan pencampur berkelajuan–tinggi berskala makmal sebelum diadun menjadi kepingan dengan menggunakan pengadun dua pengguling. Spesimen–spesimen ujian kemudiannya ditekan panas, selepas itu sifat mekanikal komposit dan morfologi permukaan patah komposit ditentukan. Modulus lenturan dan modulus Young meningkat dengan penambahan NPCC, tetapi telah menurunkan kekuatan regangan. NPCC telah menunjukkan kesan pengukuhan yang baik pada matrik PVC–U/ akrilik dan kesan kekakuan yang baik pada matrik PVC–U. Kekuatan lenturan kedua–dua komposit tidak dipengaruhi dengan penambahan NPCC. Kekuatan hentaman kedua–dua komposit telah mencapai nilai maksimum apabila 15 phr NPCC ditambah. Kata kunci: Poli(vinil klorida), nano–termendak kalsium karbonat, sifat–sifat mekanikal, akrilik Developing nanocomposites based upon polymers and nano–sized fillers has been an attractive approach to achieving good properties. Effects of nano–precipitated calcium carbonate (NPCC) on the mechanical properties of different ductile matrices were investigated. Unplasticised Poly(vinyl chloride) (PVC–U) and PVC–U/acrylic were used as the matrix in this study. To produce the composites, PVC resins, additives, acrylic and NPCC were first dry–blended using a laboratory high–speed mixer before being milled into sheets on a two–roll mill. Test specimens were then hot pressed, after that the mechanical properties and morphology of fracture surface of composites were determined. The flexural modulus and Young modulus of both the composites were enhanced after the addition of NPCC, but the tensile strength was decreased. The NPCC showed good toughening effect and stiffening effect on PVC–U/acrylic and PVC–U matrix, respectively. The flexural strength of both the composites was not significantly affected by the addition of NPCC. The impact strength of both the composites reached the maximum value when 15 phr NPCC was incorporated. Key words: Poly(vinyl chloride), nano–precipitated calcium carbonate, mechanical properties, acrylic

A strategy of precipitated calcium carbonate (CaCO3) fillers for enhancing the mechanical properties of polypropylene polymers

2015 ◽  
Vol 32 (6) ◽  
pp. 1009-1022 ◽  
Author(s):  
Thriveni Thenepalli ◽  
Ahn Young Jun ◽  
Choon Han ◽  
Chilakala Ramakrishna ◽  
Ji Whan Ahn
Keyword(s):  
Mechanical Properties ◽  
Calcium Carbonate ◽  
Precipitated Calcium Carbonate
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