Paper carbonate filled, properties

Uses Optical brightener for stock applic. in sized and unsized papers, esp. neutrally sized and calcium carbonate-filled papers and for use in coatings which contain casein as a sec. binder Features H igh ly su bstantive exhibits very good buildup even at low cones. very good stability to hard and soft water and alkaline conditions for use continuously or batchwise compat. with most anionic and nonionic prods. Properties Yel.-brn. clear liq. readily dilutable with water dens. 1.211 kg/ I vise. < 150 mPa s (20 C), < 600 mPa s (0 C) solid, pt. -18 C pH 8.5 anionic... 

In this method, carbon nanotube paper is synthesized in situ by using trichlorobenzene (TCB) as a precursor. There are some reports on the one-step method in which carbon nanotube paper is grown by the CVD method. Ferromagnetic carbon nanotube paper filled with Fe nanowires (Fe-CNT) was synthesized in situ without using any surfactant or add treatment. The one-step method is much simpler than the two-step method. The organic solvent can be avoided in the one-step process. While, good mechanical properties are obtained. However, high impurity content limits the applications of carbon nanotube paper made by the one-step method. 

Calcium carbonate is a cheap, commercially available inorganic particle and has been widely used as an inorganic filler in the manufacture of paint, paper, rubber, and plastics and in the production of toothpaste and binding agents [80,81]. Usually, the commercially available micrometer-size calcium carbonates have been used to merely reduce the cost of expensive resins however, the improvement in the various properties such as mechanical property of micrometer-size calcium carbonate-filled... 

Chem. Descrip. Calcium carbonate CAS 471-34-1 EINECS/ELINCS 207439-9 Uses Filler for plastics, PVC, polyolefins, polyesters, BMC/SMC, paint, caulks, sealants, adhesives, paper, foam urethane, modified acrylics, filled thermosets/thermoplastics, and rubber Features Improves impact str., dimensional stability Regulatory NSF approved for potable water materials Properties Wh. powd. 2 avg. particle diam. 99.9% finer than 8 0.15% sol. in water sp.gr. 2.70-2.71 dens. 22.57 Ib/gal bulk dens. 38 Ib/tP (loose) oil absorp. 23 01 cc/100 g brightness (Hunter) 95 ref. index 1.6 pH 9.5 (sat.) hardness (Mohs) 3.0 Toxicobgy Nontoxic Camel-TEX [IMERYS]... 

I. Ulkem "Static and Dynamic Mechanical Properties of (Bauxide) and (Carbon Black) Filled SBR Vulcanizates Effects of Filler Surface Modification on Properties Ph.D. Thesis, Middle East Technical University, Dept, of Chem., Ankara, (July 1990), Paper is in Preparation. 

This paper describes the effect of velocity and temperature on the friction coefficient of both filled and unfilled rubber vulcanizates sliding on smooth ice. It has been shown that the mechanism of the friction of rubber on ice is the same as that on other smooth surfaces under similar low sliding speed conditions and that the maximum friction coefficients are similar. The Williams Landel and Ferry equation is used to superpose curves of the velocity dependence of the friction coefficient at different temperatures to produce a master curve and therefore to demonstrate the viscoelastic nature of the frictional mechanism. The frictional behaviour depends on the condition of the ice track and a tentative explanation for this observation is suggested. The frictional properties of vulcanizates containing various amounts of a reinforcing carbon black filler have been studied. 

The papers by Conner, Kaneko, Rouquerol, Unger and their co-workers underline the importance now attached to the determination of physisorption isotherms at very low levels of surface coverage or fractional micropore filling, i.e. in the region of very low p/p . Such high resolution adsorption (HRADS) measurements have been shown to be especially useful for the characterization of the adsorptive properties of zeolites, aluminophosphates and molecular sieve carbons. 

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