{"id":1780,"date":"2022-07-23T13:57:48","date_gmt":"2022-07-23T10:57:48","guid":{"rendered":"http:\/\/alvina.uz\/?page_id=1780"},"modified":"2022-08-24T13:21:39","modified_gmt":"2022-08-24T10:21:39","slug":"titanium-dioxide","status":"publish","type":"page","link":"https:\/\/alvina.uz\/index.php\/tr\/titanium-dioxide\/","title":{"rendered":"Titanium Dioxide"},"content":{"rendered":"
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\n\t\t\t\t\t\t\t\t\t\t\t\t\u00d6zellikler \t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\n\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\tUygulama Alanlar\u0131\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n\t
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  • Kimyasal Ad\u0131\u00a0 Titanyum dioksit<\/li>\n
  • Kimyasal form\u00fcl\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TiO2<\/li>\n
  • Molek\u00fcl a\u011f\u0131rl\u0131\u011f\u0131\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 79,87 g\/mol<\/li>\n
  • CAS numaras\u0131 13463-67-7<\/li>\n
  • Molar k\u00fctle: 79.866 g\/mol<\/li>\n
  • G\u00f6r\u00fcn\u00fcm: Beyaz kat\u0131<\/li>\n
  • Koku: Kokusuz<\/li>\n
  • Yo\u011funluk: 4,23 g\/cm3 (rutil)<\/li>\n
  • 3,78 g\/cm3 (anataz)<\/li>\n
  • <\/li>\n
  • Erime noktas\u0131: 1.843 \u00b0C (3.349 \u00b0F; 2.116 K)<\/li>\n
  • Kaynama noktas\u0131: 2,972 \u00b0C (5,382 \u00b0F; 3,245 K)<\/li>\n
  • Suda \u00e7\u00f6z\u00fcn\u00fcrl\u00fck: \u00c7\u00f6z\u00fcnmez<\/li>\n
  • Bant aral\u0131\u011f\u0131: 3.05 eV (rutil)<\/li>\n
  • K\u0131r\u0131lma indeksi (nD): 2.488 (anataz)<\/li>\n
  • 2.583 (brokit)<\/li>\n
  • 2.609 (rutil)<\/li>\n<\/ul>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t
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    • G\u0131da renklendiricisi olarak kullan\u0131m\u0131n\u0131n yan\u0131 s\u0131ra, boya ve g\u00fcne\u015f losyonu \u00fcretiminde de kullan\u0131l\u0131r.<\/li>\n
    • Yayg\u0131n olarak kullan\u0131lmaktad\u0131r, \u00e7\u00fcnk\u00fc g\u00f6zle g\u00f6r\u00fclebilir \u0131\u015f\u0131\u011f\u0131 etkin bi\u00e7imde da\u011f\u0131t\u0131r, boya ve kaplamalara beyazl\u0131k, parlakl\u0131k ve opasite \u00f6zellikleri verir.<\/li>\n
    • G\u0131da sekt\u00f6r\u00fcnde \u00f6zellikle \u015fekerleme, sak\u0131z, kabartma tozu, beyaz leblebi gibi beyaz olan bir\u00e7ok \u00fcr\u00fcnde titanyum dioksit kullan\u0131lmaktad\u0131r.<\/li>\n
    • Titanyum dioksit’in en \u00f6nemli i\u015flevi pigment olmak \u015fart\u0131yla hem boya ve kaplama hem de plastik, k\u00e2\u011f\u0131t, m\u00fcrekkep, fiber, ila\u00e7 (hap ve tabletlerde), g\u0131da ve kozmetik \u00fcr\u00fcnlerinde; parlakl\u0131k, beyazl\u0131k ve donukluk sa\u011flamas\u0131d\u0131r.<\/li>\n
    • Bu \u00f6zelli\u011fi yard\u0131m\u0131yla titanyum dioksit, y\u00fczey kaplamak i\u00e7in beyaz renk olarak, \u00fcr\u00fcnlerde katmanlar\u0131 ay\u0131rmak amac\u0131yla ve di\u015f macununda beyazlat\u0131c\u0131 ajan olarak kullan\u0131l\u0131r.<\/li>\n
    • Titanyum dioksit, kozmetikte kal\u0131nla\u015ft\u0131r\u0131c\u0131, beyazla\u015ft\u0131r\u0131c\u0131, ya\u011flay\u0131c\u0131 ve g\u00fcne\u015f \u0131\u015f\u0131nlar\u0131n\u0131 kesici bir madde olarak da kullan\u0131lan bir mineraldir.<\/li>\n
    • Cildi UVA ve UVB radyasyonundan korur ve cildi tahri\u015f etme riski yoktur. I\u015f\u0131\u011f\u0131n kataliz\u00f6r etkisi yani fotokataliz uygulamas\u0131n\u0131n bilinen en yayg\u0131n kullan\u0131m\u0131 \u00e7evre kirlili\u011finin temizlenmesidir. B\u00f6ylelikle \u0131\u015f\u0131k ve uygun malzeme bir araya getirildi\u011finde, temizleme i\u015flemi kendili\u011finden olu\u015fmaktad\u0131r.<\/li>\n
    • G\u00fcnd\u00fczleri \u00e7evremizdeki UV yay\u0131n\u0131m\u0131 santimetre kareye ortalama bir miliwat civar\u0131ndad\u0131r. Bina i\u00e7lerinde kulland\u0131\u011f\u0131m\u0131z \u0131\u015f\u0131kta ise bu oran binde birine d\u00fc\u015fer. Bu oranda UV \u0131\u015f\u0131n\u0131mlar\u0131 bile uygun yap\u0131da titanyum dioksit ile bir araya geldi\u011finde temizleme s\u00fcreci ba\u015flar. Ancak, fotokatalitik etki i\u00e7in kullan\u0131lan titanyum dioksit ile boya, kozmetik ve g\u0131da sanayilerinde kullan\u0131lanlar\u0131n yap\u0131lar\u0131 farkl\u0131d\u0131r. Titanyum dioksit\u2019in fotokatalitik etkisi \u0131\u015f\u0131kla bir araya geldi\u011finde temas etti\u011fi organikleri par\u00e7alama \u015feklinde olmaktad\u0131r. Bu durum pozitif anlamda kullan\u0131ld\u0131\u011f\u0131nda \u00e7evremizdeki havada, suda ve \u00e7e\u015fitli y\u00fczeylerin \u00fczerindeki istenmeyen organiklerin (kir, mikrop, bakteri, koku ve zararl\u0131 organik kimyasallar) yok edilmesi anlam\u0131n\u0131 ta\u015f\u0131maktad\u0131r.<\/li>\n<\/ul>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n<\/div>\n<\/div><\/div><\/div>
      Y\u00fcksek dispersiyon ve parlakl\u0131k, iyi \u00f6rt\u00fcc\u00fcl\u00fck, m\u00fckemmel renk stabilitesi ve solma direncinden dolay\u0131 titanyum dioksit PVC profil \u00fcretiminin vazge\u00e7ilmez yard\u0131mc\u0131 malzemelerinden bir tanesidir. Titan dioksit beyaz olarak bilinen en \u00f6nemli pigment olup, boyama g\u00fcc\u00fc, opakl\u0131\u011f\u0131, reaksiyona az girmesi ve m\u00fckemmel termal stabilitesinden dolay\u0131 her zaman tercih edilmektedir. Titan dioksit iki \u015fekilde bulunur: Rutile ve Anatase.\n\nRutile en \u00e7ok kullan\u0131lan titan dioksit olup, \u00f6zg\u00fcl a\u011f\u0131rl\u0131\u011f\u0131 4.2 g cm-3, k\u0131r\u0131lma indisi 2.76 ve Moh skalas\u0131ndaki sertli\u011fi 7 dir. Rutilein kuvvetli boyama g\u00fcc\u00fc ve opakl\u0131\u011f\u0131 vard\u0131r. Anatas\u2019a g\u00f6re daha asald\u0131r. Beyaz pigmentlerin en iyisi olan rutile, ultraviyole \u0131\u015f\u0131nlar\u0131na kar\u015f\u0131 plasti\u011fi korur. Rutile, plasti\u011fe iklim \u015fartlar\u0131na, \u0131s\u0131ya kar\u015f\u0131 diren\u00e7 sa\u011flaman\u0131n yan\u0131 s\u0131ra plastiklere sa\u011flaml\u0131k da verir.\nTitanyum dioksit yayg\u0131n olarak kullan\u0131lan UV stabilizat\u00f6rleri aras\u0131ndad\u0131r. Ultraviole stabilizat\u00f6rlerinin PVC kar\u0131\u015f\u0131m\u0131na ilavesiyle UV \u0131\u015f\u0131n\u0131mlar\u0131n\u0131n etkisi \u00f6nemli oranda azalt\u0131labilir. En \u00f6nemli UV stabilizat\u00f6rleri aras\u0131nda yer alan pigmentler \u0131\u015f\u0131\u011f\u0131 emerek veya yans\u0131tarak UV \u0131\u015f\u0131nlar\u0131na kar\u015f\u0131 polimeri korur. Beyazl\u0131k ve parlakl\u0131k ise UV \u0131\u015f\u0131nlar\u0131n\u0131n emilmesinde veya yans\u0131t\u0131lmas\u0131nda \u00f6nemli bir parametredir. \n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1780","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/pages\/1780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/comments?post=1780"}],"version-history":[{"count":3,"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/pages\/1780\/revisions"}],"predecessor-version":[{"id":2167,"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/pages\/1780\/revisions\/2167"}],"wp:attachment":[{"href":"https:\/\/alvina.uz\/index.php\/wp-json\/wp\/v2\/media?parent=1780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}