Barium sulfate yog ib qho khoom siv tshuaj lom neeg tseem ceeb uas ua los ntawm cov hlau barite. Nws tsis tsuas yog muaj kev ua tau zoo ntawm qhov muag thiab kev ruaj khov ntawm tshuaj lom neeg xwb, tab sis kuj muaj cov yam ntxwv tshwj xeeb xws li ntim, qhov loj me thiab qhov cuam tshuam ntawm qhov sib txuas. Yog li ntawd, nws yog siv dav hauv kev pleev xim, yas, ntawv, roj hmab, kua mem thiab xim thiab lwm yam teb. Nanometer barium sulfate muaj qhov zoo ntawm thaj chaw tshwj xeeb, kev ua haujlwm siab, kev sib kis zoo, thiab lwm yam. Nws tuaj yeem ua tau zoo heev thaum siv rau cov ntaub ntawv sib xyaw. HCMilling (Guilin Hongcheng) yog lub chaw tsim khoom tshaj lij ntawmbaritelub tshuab sib tsoocov tshuab. Pebbaritecov menyuam ntsuglub zeb tshuab tuaj yeem sib tsoo 80-3000 mesh barite hmoov. Cov hauv qab no yog kev qhia txog cov teb thov ntawm nano barium sulfate.
1. Kev lag luam yas — tom qab ua tiav nrog baritelub tshuab sib tsootshuab
Ntxiv nano barium sulfate ua los ntawm barite sib tsoo tshuab rau polymer kom tau txais cov ntaub ntawv sib xyaw nrog lub zog siab thiab toughness tau nyiam ntau dua thiab ntau dua. Piv txwv li, barium sulfate tuaj yeem ntxiv rau polyethylene (PE), polypropylene (PP), polylactic acid (PLA), polytetrafluoroethylene (PTFE) thiab lwm yam ntaub ntawv. Tshwj xeeb tshaj yog, cov khoom siv kho tshuab ntawm barium sulfate tau zoo dua tom qab kev hloov kho qhov chaw.
Rau feem ntau cov polymer composites, nrog rau kev nce ntawm cov modifier, lub zog thiab toughness ntawm cov khoom sib xyaw ua ke nce ua ntej thiab tom qab ntawd txo qis. Qhov no yog vim tias qhov ntau dhau ntawm modifier yuav ua rau muaj ntau txheej adsorption lub cev ntawm qhov chaw ntawm nano barium sulfate, ua rau muaj kev sib sau ua ke hauv polymer, cuam tshuam rau cov khoom siv kho tshuab ntawm cov khoom sib xyaw, thiab ua rau nws nyuaj rau ua si cov yam ntxwv zoo ntawm cov inorganic fillers; Ib qho me me ntawm modifier yuav ua rau kom muaj qhov tsis zoo ntawm qhov interface ntawm nano barium sulfate thiab polymer, ua rau muaj kev txo qis ntawm cov khoom siv kho tshuab ntawm cov khoom sib xyaw.
Ntxiv rau qhov ntau ntawm cov khoom hloov kho saum npoo av muaj qhov cuam tshuam loj rau cov khoom siv kho tshuab ntawm cov khoom sib xyaw, qhov ntau ntawm barium sulfate kuj yog ib qho tseem ceeb. Qhov no yog vim tias lub zog ntawm nano barium sulfate loj heev, uas tuaj yeem ua lub luag haujlwm hauv kev dais thaum ntxiv rau cov khoom sib xyaw, yog li ua rau muaj qee qhov kev txhawb zog. Txawm li cas los xij, thaum cov ntsiab lus ntawm nano barium sulfate siab dhau (ntau dua 4%), vim nws cov agglomeration hauv cov khoom sib xyaw thiab ntxiv cov khoom inorganic, cov qhov tsis zoo ntawm matrix nce ntxiv, uas ua rau cov khoom sib xyaw yooj yim tawg, yog li ua rau cov khoom siv kho tshuab ntawm cov khoom sib xyaw tsis zoo. Yog li ntawd, qhov ntxiv ntawm barium sulfate yuav tsum nyob hauv nws cov khoom siv kho tshuab tsim nyog.
2. Kev lag luam txheej - tom qab ua tiav nrogbaritelub tshuab sib tsootshuab
Ua ib hom xim, barium sulfate siv dav hauv cov txheej txheej thiab ua lub luag haujlwm tseem ceeb hauv kev txhim kho qhov tuab, kev tiv taus kev sib txhuam, kev tiv taus dej, kev tiv taus cua sov, qhov nyuaj ntawm qhov chaw thiab kev tiv taus kev cuam tshuam ntawm cov txheej. Tsis tas li ntawd, vim nws nqus roj tsawg thiab muaj peev xwm ntim tau ntau, nws tuaj yeem siv rau hauv cov txheej txheej dej, cov tshuaj pleev xim, cov txheej txheej nruab nrab thiab cov txheej txheej roj kom txo tus nqi ntawm cov txheej txheej. Nws tuaj yeem hloov 10% ~ 25% ntawm titanium dioxide hauv cov txheej txheej dej. Cov txiaj ntsig qhia tau tias qhov dawb tau zoo dua thiab lub zog zais tsis txo qis.
Cov yam ntxwv ntawm superfine barium sulfate rau cov txheej yog: 1) qhov loj me me heev thiab qhov faib me me ntawm cov khoom me me; 2) Nws yog pob tshab thaum tawg hauv cov kua resin; 3) Kev tawg zoo hauv cov khoom siv txheej; 4) Nws tuaj yeem siv ua tus neeg sawv cev tawg ua ke nrog cov xim organic; 5) Nws tuaj yeem txhim kho cov khoom siv lub cev.
3. Kev lag luam ntawv — tom qab ua tiav los ntawm baritecov menyuam ntsuglub zeb tshuab
Barium sulfate feem ntau siv rau hauv kev lag luam ntawv vim nws lub cev zoo thiab tshuaj lom neeg ruaj khov, qhov nyuaj nruab nrab, qhov dawb loj, thiab kev nqus cov teeb meem.
Piv txwv li, daim ntawv carbon yog cov khoom siv rau kev kawm thiab chaw ua haujlwm, tab sis nws qhov chaw yooj yim rau decolor, yog li barium sulfate yuav tsum muaj tus nqi nqus roj siab, uas tuaj yeem txhim kho kev nqus number case ntawm daim ntawv; Qhov loj me ntawm cov khoom me me thiab sib xws, uas tuaj yeem ua rau daim ntawv tiaj tus thiab ua rau lub tshuab hnav tsawg dua.
4. Kev lag luam tshuaj fiber — tom qab ua tiav los ntawm baritecov menyuam ntsuglub zeb tshuab
Cov fiber viscose, tseem hu ua "paj rwb cuav", zoo ib yam li cov paj rwb ntuj, xws li tiv thaiv hluav taws xob, nqus dej zoo, yooj yim zas xim, thiab yooj yim ua cov ntaub. Cov nano barium sulfate muaj cov nyhuv nano zoo. Cov nano barium sulfate / regenerated cellulose sib xyaw ua los ntawm ob qho ua cov khoom siv raw yog ib hom tshiab ntawm cov fiber sib xyaw, uas tuaj yeem tswj cov khoom tshwj xeeb ntawm txhua yam khoom. Ntxiv mus, los ntawm "kev sib koom ua ke" ntawm lawv, nws tuaj yeem ua rau cov khoom tsis zoo ntawm ib yam khoom thiab qhia cov khoom tshiab ntawm cov ntaub sib xyaw.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-29-2022
