scholarly journals Reducing the carbonitride formation risk with increasing titanium dioxide content in the blast furnaces charge of JSC EVRAZ NTMK

2020 ◽  
Vol 966 ◽  
pp. 012048
Author(s):  
O Yu Sheshukov ◽  
M A Mikheenkov ◽  
I V Nekrasov ◽  
D K Egiazaryan
Keyword(s):  
Titanium Dioxide ◽  
Blast Furnaces ◽  
Titanium Dioxide Content

Wear of polyetherketoneketones — Influence of titanium dioxide content and antagonistic material

2018 ◽  
Vol 34 (3) ◽  
pp. 560-567 ◽  
Author(s):  
Thomas Kewekordes ◽  
Sebastian Wille ◽  
Matthias Kern
Keyword(s):  
Titanium Dioxide ◽  
Titanium Dioxide Content

scholarly journals Use of Multi-Hollow Polyester Particles as Opacifying Agent for Injection-Molded Polyethylene

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1331
Author(s):  
João F. A. Silva ◽  
Tânia M. T. Carvalho ◽  
Margarida L. Almeida ◽  
Paula Pereira ◽  
Helena Sousa ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Double Emulsion ◽  
Single Step ◽  
Melt Processing ◽  
Light Refraction ◽  
White Pigment ◽  
Titanium Dioxide Content ◽  
Similar Strategy ◽  
Emulsion Process ◽  
Injection Molded

Titanium dioxide is considered the most efficient white pigment for opacification of thermoplastics. However, its high cost, combined with strong price oscillations due to production bottlenecks, has been driving the industry towards alternatives that might allow reducing the titanium dioxide content, while maintaining the product’s opacity. A strategy commonly used in waterborne paints consists in adding hollow polymer particles to the formulation, therefore achieving opacification due to light refraction at the air/polymer interface. In the current work, we show preliminary results that indicate that a similar strategy can be followed for thermoplastics opacification, as long as thermoset particles are used, in order to ensure preservation of the hollow geometry during melt-processing. Multi-vesiculated crosslinked styrene–polyester particles, produced by a single-step double emulsion process, are used. Evidence of synergic interaction between the multi-hollow particles and titanium dioxide has been found.

The effect of the 1B/1R translocation and endosperm texture on amino acid digestibility in near-isogenic lines of wheat for broilers

2000 ◽  
Vol 134 (1) ◽  
pp. 69-76 ◽  
Author(s):  
F. J. SHORT ◽  
J. WISEMAN ◽  
K. N. BOORMAN
Keyword(s):  
Amino Acids ◽  
Titanium Dioxide ◽  
Amino Acid ◽  
Apparent Digestibility ◽  
Near Isogenic Lines ◽  
Acid Digestion ◽  
Isogenic Lines ◽  
Titanium Dioxide Content ◽  
Endosperm Texture ◽  
Vitamin Mixture

Four near-isogenic lines of wheat were employed to compare the effects of endosperm texture (hard v. soft) and the presence or absence of the 1B/1R translocation on amino acid digestion as determined with young broilers. Wheat samples were incorporated into diets at rates of inclusion of 250, 500 and 750 g/kg, with wheat as the only protein source. Diets included a mineral/vitamin mixture (50 g), oil (50 g) and were made up to 1000 g with a 50[ratio ]50 starch[ratio ]glucose mixture. Titanium dioxide was included at 5 g/kg as an inert marker. Each of the 12 diets was fed to 6 pairs of growing male (Ross) chickens for 3 days. Samples of ileal digesta were obtained from the birds following slaughter at 21 or 22 days of age and analysed for amino acid and titanium dioxide content. True and apparent digestibility coefficients were determined by regressing the amount of dietary apparently digestible amino acid in the diet against the rate of wheat inclusion and extrapolating the response to 1000 g and 0 g wheat/kg. The ordinate intercept was assumed to represent endogenous losses. Both the presence of the translocation and hard endosperm texture were associated with decreases in the apparent digestibility of amino acids, although the latter characteristic was not as important. As examples, for methionine the translocation was associated with a decrease in the coefficient of digestibility from 0·872 to 0·802 and a change in endosperm texture from soft to hard was associated with a decrease from 0·845 to 0·829.

Sign in / Sign up

Export Citation Format

Share Document