Rubber–pristine clay nanocomposites prepared by co-coagulating rubber latex and clay aqueous suspension

2005 ◽  
Vol 65 (7-8) ◽  
pp. 1195-1202 ◽  
Author(s):  
You-Ping Wu ◽  
Yi-Qing Wang ◽  
Hui-Feng Zhang ◽  
Yi-Zhong Wang ◽  
Ding-Sheng Yu ◽  
...  
Keyword(s):  
Aqueous Suspension ◽  
Clay Nanocomposites ◽  
Rubber Latex

New Method for Preparing Rubber/Clay Nanocomposites

2011 ◽  
Vol 110-116 ◽  
pp. 3810-3817 ◽  
Author(s):  
Jing Hua Tan ◽  
Xiao Ping Wang ◽  
Yuan Fang Luo ◽  
De Min Jia
Keyword(s):  
Preparation Method ◽  
Aqueous Suspension ◽  
Mechanical Analysis ◽  
Clay Nanocomposites ◽  
Structure And Properties ◽  
X Ray Diffraction ◽  
Rubber Latex ◽  
X Ray ◽  
Aging Resistance

Rubber/Ca-montmorillonite (Ca-MMT) nanocomposites with exfoliated Ca-MMT layers was prepared by a new preparation method named masterbatch method, in which the masterbatch was prepared by co-coagulating nature rubber latex and bis [3-triethoxysilylpropyl-] tetrasulfide (TESPT) modified Ca-MMT aqueous suspension and then the masterbatch accompanied with carbon black (N220) were used in the system of SBR and ENR. The properties of TESPT in-situ modified Ca-MMT were investigated by Fourier-transform infrared spectroscopy and thermogravimetric analysis. The results showed that the TESPT has reacted with the surface groups of Ca-MMT. The dispersion of the Ca-MMT in masterbatch and vulcanized sample was characterized by X-ray diffraction. The results showed that in the masterbatch an exfoliated structure was obtained and in the vulcanized sample a coexistence of intercalated-exfoliated structure was obtained. The influence of the Ca-MMT loading on the structure and properties of the nanocomposites were studied. It was found that the incorporation of Ca-MMT hindered the vulcanization, improved mechanical properties, thermal properties and aging resistance properties. The dynamic mechanical analysis results showed a decrease of tanδ max when the Ca-MMT is added.

The Natural Rubber/Zinc Oxide Nanocomposites: Its Morphology, Mechanical and Thermal Decomposing Properties

2014 ◽  
Vol 936 ◽  
pp. 394-399 ◽  
Author(s):  
Ming Zhe Lv ◽  
Lei Fang ◽  
Pu Wang Li ◽  
Chun Liang Yang
Keyword(s):  
Zinc Oxide ◽  
Natural Rubber ◽  
Antibacterial Effect ◽  
Aqueous Suspension ◽  
Natural Rubber Latex ◽  
Rubber Latex ◽  
Thermogravimetric Analyzer ◽  
Aging Resistance ◽  
Average Size ◽  
Scanning Electron

Natural rubber /Zinc Oxide (NR/ZnO) nanocomposites are fabricated by blending natural rubber latex with aqueous suspension of nanoZnO particles. Its morphology and thermal/thermooxidative ageing resistance are investigated with scanning electron microscopy (SEM) and thermogravimetric analyzer (TGA). The results show that the mechanical properties of NR is greatly improved by the incorporation of nanoZnO, nanoparticles, which are homogenously distributed throughout NR matrix as nanoclusters with an average size of 80 nm when the ZnO loading is less than 4 wt%. The thermal/thermooxidative aging resistance of NR/ZnO nanocomposites is compared to the pure NR. It is found that the introduction of nanoZnO has no obvious impact to the thermal decomposing properties of NR matrix. ZnO/NR composites possess excellent antibacterial effect.

Transport properties of natural rubber latex layered clay nanocomposites

2008 ◽  
Vol 108 (4) ◽  
pp. 2623-2629 ◽  
Author(s):  
Ansu Jacob ◽  
Philip Kurian ◽  
Abi Santhosh Aprem
Keyword(s):  
Natural Rubber ◽  
Transport Properties ◽  
Natural Rubber Latex ◽  
Clay Nanocomposites ◽  
Rubber Latex ◽  
Layered Clay

Preparation and Properties of Attapulgite / Natural Rubber Micro - Nano Composites

2010 ◽  
Vol 148-149 ◽  
pp. 1668-1673 ◽  
Author(s):  
Mei Yang ◽  
Sheng Hu ◽  
Shang Yue Shen ◽  
Tie Li ◽  
Miao Wan
Keyword(s):  
Natural Rubber ◽  
Cetyltrimethylammonium Bromide ◽  
Aqueous Suspension ◽  
Tensile Modulus ◽  
Nano Composites ◽  
Strength Increase ◽  
Rubber Latex ◽  
Modified Attapulgite ◽  
Fesem Micrographs ◽  
Better Than

The attapulgite / natural rubber (NR) micro-nano composites were prepared by co-coagulating rubber latex and clay aqueous suspension. The vulcanization behavior, mechanical properties and microcosmic structure of the composites were investigated. The field emission scanning electron microscope (FESEM) micrographs of the composites showed that the attapulgite stick particles inserted into the rubber. The interaction between the attapulgite and natural rubber could be improved by using the attapulgite pre-modified with cetyltrimethylammonium bromide (CTAB). The properties of the composites filled with CTAB-modified attapulgite are better than that of the composites filled with carbon black N330. The best properties, which the tensile strength, the 300% tensile modulus and the tear strength increase by 46.9%, 269.7%, 102.0%, respectively, compared with the composites with the unmodified attapulgite, can be obtained, when 20 phr CTAB-modified attapulgite was added.

Preparation and Properties of Natural Rubber/Palygorskite Composites by Co-Coagulating Rubber Latex and Clay Aqueous Suspension

2006 ◽  
Vol 13 (6) ◽  
pp. 469-473 ◽  
Author(s):  
Shangyue Shen ◽  
Mei Yang ◽  
Songlin Ran ◽  
Fang Xu ◽  
Zongxia Wang
Keyword(s):  
Natural Rubber ◽  
Aqueous Suspension ◽  
Rubber Latex

TEM observation of iron oxide pillars in montmorillonite

1990 ◽  
Vol 48 (4) ◽  
pp. 882-883
Author(s):  
H. Mori ◽  
Y. Murata ◽  
H. Yoneyama ◽  
H. Fujita
Keyword(s):  
Aqueous Solution ◽  
Iron Oxide ◽  
Fine Particles ◽  
Aqueous Suspension ◽  
Volume Ratio ◽  
Exchange Capacity ◽  
Nano Composites ◽  
Pillared Montmorillonite ◽  
Topographic Features ◽  
Transmission Electron

Recently, a new sort of nano-composites has been prepared by incorporating such fine particles as metal oxide microcrystallites and organic polymers into the interlayer space of montmorillonite. Owing to their extremely large specific surface area, the nano-composites are finding wide application[1∼3]. However, the topographic features of the microstructures have not been elucidated as yet In the present work, the microstructures of iron oxide-pillared montmorillonite have been investigated by high-resolution transmission electron microscopy.Iron oxide-pillared montmorillonite was prepared through the procedure essentially the same as that reported by Yamanaka et al. Firstly, 0.125 M aqueous solution of trinuclear acetato-hydroxo iron(III) nitrate, [Fe3(OCOCH3)7 OH.2H2O]NO3, was prepared and then the solution was mixed with an aqueous suspension of 1 wt% clay by continuously stirring at 308 K. The final volume ratio of the latter aqueous solution to the former was 0.4. The clay used was sodium montmorillonite (Kunimine Industrial Co.), having a cation exchange capacity of 100 mequiv/100g. The montmorillonite in the mixed suspension was then centrifuged, followed by washing with deionized water. The washed samples were spread on glass plates, air dried, and then annealed at 673 K for 72 ks in air. The resultant film products were approximately 20 μm in thickness and brown in color.

Mineral/microfibrillated cellulose composite materials: High performance products, applications, and product forms

TAPPI Journal ◽  
2018 ◽  
Vol 17 (09) ◽  
pp. 507-515 ◽  
Author(s):  
David Skuse ◽  
Mark Windebank ◽  
Tafadzwa Motsi ◽  
Guillaume Tellier
Keyword(s):  
Composite Materials ◽  
High Performance ◽  
Aqueous Suspension ◽  
Production Capacity ◽  
Cost Savings ◽  
Cost Effective ◽  
New Materials ◽  
Wet Strength ◽  
Product Forms ◽  
Cellulose Composite

When pulp and minerals are co-processed in aqueous suspension, the mineral acts as a grinding aid, facilitating the cost-effective production of fibrils. Furthermore, this processing allows the utilization of robust industrial milling equipment. There are 40000 dry metric tons of mineral/microfbrillated (MFC) cellulose composite production capacity in operation across three continents. These mineral/MFC products have been cleared by the FDA for use as a dry and wet strength agent in coated and uncoated food contact paper and paperboard applications. We have previously reported that use of these mineral/MFC composite materials in fiber-based applications allows generally improved wet and dry mechanical properties with concomitant opportunities for cost savings, property improvements, or grade developments and that the materials can be prepared using a range of fibers and minerals. Here, we: (1) report the development of new products that offer improved performance, (2) compare the performance of these new materials with that of a range of other nanocellulosic material types, (3) illustrate the performance of these new materials in reinforcement (paper and board) and viscosification applications, and (4) discuss product form requirements for different applications.

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