Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerEffect of 12-hydroxystearic acid on the structuration of blends with a high content of renewable raw materials| Abstract

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Abstract

Effect of 12-hydroxystearic acid on the structuration of blends with a high content of renewable raw materials

Author(s): Marie Caroline Agogue*, Catherine Loisel, Abdellah Arhaliass, Olivier Gonalves, Jack Legrand and Sylvaine Saint Jalmes

The substitution of mineral waxes by renewable raw materials is possible by the use of organogel, via the incorporation of an organogelator, 12-hydroxystearic acid (12-HSA). However, the physico-chemical characteristics of renewable vegetable raw materials differ from those of mineral waxes. The structure of the blends in which they are used is modified. The addition of 12-HSA promotes the creation of weak bonds, as hydrogen bonds with the liquid fraction, particularly rapeseed oil; thus, allowing the gelling of 12-HSA-rapeseed oil blend. This was shown by infrared spectroscopy. The study of the microstructure of blends containing 12-HSA by polarized light microscopy shows that the addition of 12-HSA also results in a modification of the crystal microstructure: the crystal lattice is denser and the crystal size is reduced. This modification of the crystal lattice has an impact on the phase transition of the blends. The addition of 12-HSA causes a change in the thermal behavior of the blends, as measured by differential scanning calorimetry. The enthalpies of crystallization and melting are divided by two with respect to the referent blend, containing a majority of petrochemical paraffins. In addition, the higher the 12-HSA content, the higher the values of the enthalpies of crystallization and melting. Thus, these results show an improvement of the strength of the interactions between the 12-HSA molecules and between 12- HSA and rapeseed oil. To conclude, the incorporation of an organogel makes it possible to obtain a solid texture with a high content of liquid vegetable oil.


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