{"id":117101,"date":"2022-06-18T10:00:25","date_gmt":"2022-06-18T02:00:25","guid":{"rendered":"https:\/\/www.alpapowder.com\/117101\/"},"modified":"2022-06-14T15:02:05","modified_gmt":"2022-06-14T07:02:05","slug":"plastik-guclendirme-ve-modifikasyon-icin-talk-tozu-icin-ne-kadar-incelik-uygundur","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/tr\/117101\/","title":{"rendered":"Plastik g\u00fc\u00e7lendirme ve modifikasyon i\u00e7in talk tozu i\u00e7in ne kadar incelik uygundur?"},"content":{"rendered":"

\"\"<\/p>\n

Plastik takviye modifikasyonu, \u00f6zellikle otomotiv ve beyaz e\u015fya end\u00fcstrilerinde polipropilen modifikasyonu i\u00e7in talk\u0131n \u00f6nemli bir uygulama alan\u0131d\u0131r. Mikronizasyon, talk \u00fcr\u00fcnlerinin geli\u015fme e\u011filimidir. \u0130yile\u015ftirme ve modifikasyon i\u00e7in kullan\u0131lan talk tozu inceli\u011finin (d50) de\u011fi\u015fim e\u011filimi \u015fu \u015fekildedir: 1980’lerde a\u011f\u0131rl\u0131kl\u0131 olarak 10-15 \u00b5m, 1990’larda a\u011f\u0131rl\u0131kl\u0131 olarak 8-10 \u00b5m ve 2000 y\u0131l\u0131nda a\u011f\u0131rl\u0131kl\u0131 olarak 5- 10\u00b5m. , \u015fu anda 3.5 ila 7 \u00b5m aral\u0131\u011f\u0131nda.<\/p>\n

Genel olarak konu\u015fursak, \u00fcr\u00fcn ne kadar ince olursa, geli\u015ftirme etkisi o kadar iyi olur, ancak maliyet artar ve ayn\u0131 zamanda y\u0131\u011f\u0131lmas\u0131 kolayd\u0131r ve i\u015flenmesi ve kullan\u0131lmas\u0131 zordur. Kendi dispersiyon teknolojisi d\u00fczeyine ve \u00fcr\u00fcn\u00fcn beklenen performans\u0131na g\u00f6re uygun inceli\u011fe sahip bir \u00fcr\u00fcn se\u00e7mek gerekir ve mutlaka daha ince olmas\u0131 gerekmez.<\/p>\n

Bir talk \u00fcr\u00fcn\u00fcn\u00fcn par\u00e7ac\u0131k boyutunun de\u011ferlendirilmesi, yaln\u0131zca ortalama par\u00e7ac\u0131k boyutu d50’ye dayand\u0131r\u0131lamaz. Ortalama par\u00e7ac\u0131k boyutu, \u00fcr\u00fcn\u00fcn par\u00e7ac\u0131k boyutu da\u011f\u0131l\u0131m\u0131n\u0131 veya maksimum par\u00e7ac\u0131k boyutunu karakterize etmez. De\u011ferlendirme, en az iki g\u00f6sterge gerektirir, ortalama par\u00e7ac\u0131k boyutu d50 ve maksimum par\u00e7ac\u0131k boyutu d98 (veya d100). \u0130ri par\u00e7ac\u0131klar\u0131n boyutu ve miktar\u0131, \u00fcr\u00fcn\u00fcn mekanik \u00f6zellikleri \u00fczerinde \u00f6nemli bir olumsuz etkiye sahiptir ve s\u0131k\u0131 bir \u015fekilde kontrol edilmesi gerekir.<\/p>\n

Son y\u0131llarda elektrikli ara\u00e7lar\u0131n uygulanmas\u0131yla birlikte, ince cidarl\u0131 ve d\u00fc\u015f\u00fck yo\u011funluklu otomotiv plastik par\u00e7alar\u0131, modifiye plastiklerin rijitli\u011fi ve talk\u0131n dolum miktar\u0131 i\u00e7in daha y\u00fcksek gereksinimlere sahiptir. 3000-5000 a\u011f ultra ince talk pudras\u0131, ince duvarl\u0131 ve y\u00fcksek sertlikte modifiye plastik \u00fcr\u00fcnlerde, \u00f6zellikle 2 mm kal\u0131nl\u0131\u011f\u0131nda otomotiv tamponlar\u0131nda giderek daha fazla kullan\u0131lmaktad\u0131r. Bu alandaki ana \u00fcr\u00fcnler aras\u0131nda Imerys’ Jetfine, Liaoning Aihai’nin HTPultra5L ve di\u011fer \u00fcr\u00fcnleri bulunmaktad\u0131r. Y\u00fcksek safl\u0131kta hammaddelere ve girdapl\u0131 \u00f6\u011f\u00fctme i\u015flemine dayanan ultra ince toz, talk pul yap\u0131s\u0131n\u0131 daha iyi korur, bu da e\u011filme mod\u00fcl\u00fcn\u00fc %10 ila %15 oran\u0131nda art\u0131rabilir ve talk doldurma miktar\u0131n\u0131 %5 ila %6 oran\u0131nda azaltabilir.<\/p>\n

\u0130nce g\u00f6zenekli talk\u0131n bir dezavantaj\u0131, k\u00fc\u00e7\u00fck k\u00fctle yo\u011funlu\u011fu, do\u011frudan kar\u0131\u015ft\u0131rma zorlu\u011fu, d\u00fc\u015f\u00fck verim ve toz kirlili\u011fidir. Son y\u0131llarda, y\u0131\u011f\u0131n yo\u011funlu\u011funu iyile\u015ftirmek i\u00e7in yeni egzoz s\u0131k\u0131\u015ft\u0131rma teknolojisi benimsenmi\u015ftir. 1250-5000 a\u011f tozunun s\u0131k\u0131\u015ft\u0131rma \u00f6ncesi yo\u011funlu\u011fu 0.25-0.15’tir ve s\u0131k\u0131\u015ft\u0131rmadan sonra 0.70-0.45’e ula\u015fabilir ve da\u011f\u0131l\u0131m temelde etkilenmez. Egzoz s\u0131k\u0131\u015ft\u0131rmas\u0131 ayr\u0131ca talk tozu taraf\u0131ndan ekstr\u00fcdere getirilen hava miktar\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde azaltabilir, malzemenin ekstr\u00fcderde kalma s\u00fcresini azaltabilir ve ya\u015flanmay\u0131 \u00f6nleme performans\u0131n\u0131n iyile\u015ftirilmesine yard\u0131mc\u0131 olabilir ve verim %15 oran\u0131nda art\u0131r\u0131labilir. %25.<\/p>\n","protected":false},"excerpt":{"rendered":"

Plastik takviye modifikasyonu, \u00f6zellikle otomotiv ve beyaz e\u015fya end\u00fcstrilerinde polipropilen modifikasyonu i\u00e7in talk\u0131n \u00f6nemli bir uygulama alan\u0131d\u0131r.<\/p>\n","protected":false},"author":7,"featured_media":117078,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[851],"tags":[],"class_list":["post-117101","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-endustri-haberleri-tr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/117101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/comments?post=117101"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/117101\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media\/117078"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media?parent=117101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/categories?post=117101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/tags?post=117101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}