Bisphenol A (BPA): A ttha ngaimi thilri sertu hrampi

A hrampi Physicochemical sining hna thukpi in hlathlainak

Aa dangmi Molecule Dirhmun: BPA molecule cu propane ruhro he aa pehtlaimi phenolic hydroxyl phu hnih in sermi a si. Hi sining nih hin a hleiin chemical cawlcanghnak a pek. Phenolic hydroxyl phu hnih nih BPA cu a fekmi nucleophilicity a pek, cu nih cun a phunphun in aa pehtlaimi thilri pawl he aa pehtlaih khawhnak a pek. Cu lio caan te ah cun, propane ruhro nih molecule cu a fekmi le a fekmi dawnkhantu a pek, chemical thlennak phunphun ah BPA thim khawhnak le cawlcanghnak kha a thlen.

Taksa sining: BPA cu 158 - 159°C tiang a lum, 400.8°C tiang a lin, cun 1.195g/cm3 hrawng a rit. A linnak le a linnak a sangmi nih a ttha mi lum le hneknak tangah a fekmi a siter, cu lio ah aa tlakmi a ritmi nih thilri tlawmtam a herhmi hmannak thil sining ah hmunhma a lak, cu bantuk cu plastic le resin cheukhat timhtuahnak ah a si, cuka ahcun BPA tlawmtam sining nih a donghnak thilri hna i an taksa sining le sernak riantuannak kha a hnorsuan khawh. Carbon tetrachloride ah tlawmpal a cawh khawh, ti ah a cawh kho lo, asinain a tlangpi in a ummi thilnung cawhmi thilri phunphun ah a cawh khawh, cun hi cawh khawhnak sining nih a cawhmi thil phunphun ah a lehrulhnak cawlcanghnak le hman ning a khiah.

Field tampi ah a biapi mi hmannak

Plastic le Resin sernak:
Polycarbonate (PC) chuahnak: BPA cu polycarbonate (PC) sernak caah a hrampi thilri a si. Polycarbonate cu a ttha tukmi mit in hmuh khawhnak (ceunak 90% cung a thlen khawhnak), a ttha tukmi tthawnnak (a tlangpi thlalang nakin a let 250 - 300), a tthatnak a tthatnak, le a lum khawhnak (130 - 140°C tiang a linnak thlennak lumnak) ruangah rian tampi ah a lang. Electronics le electrical industry ah, PC cu computer, mobile phone le a dang electronic thilri hna i an kuang sernak ah tampi hman a si, cu nih cun a chunglei thilri hna caah zumhawktlak tein huhphenhnak a pek lawng si loin an muisam dawh le an tthatnak ruangah thilri hna i zuamnak ah a tthanchoter. Mawtaw sernak ah, PC cu mawtaw hmai mei vannak khuhnak, thilri chiahnak kuang le a dang thilri pawl sernak ah hman a si. Hmai mei vannak khuhnak nih zanlei mawtaw mawnghnak ah ceunak a pek, cu lioah thilri tthen hna i an kauhning fekmi nih a dikthliar in fonh khawhnak le caan sau hmannak zumhawktlak sinak kha a fehter. Inn saknak lei ah, PC - in sermi ni ceunak tthen, ceunak tthutdan, le thilri dangdang hna cu mipi umnak inn ngan pipi le lentecelhnak hmun hna ah an hman hna, zeicahtiah an ttha tukmi hnahnawhnak doh khawhnak le ceunak luh khawhnak an ngei, cu nih cun innchung hmunhma ceu le himnak a ser.

Epoxy Resin Sernak: BPA cu epoxy resin sernak caah a biapi tukmi monomer zong a si. Epoxy resins cu a ttha tukmi hrenhnak an ngei i thir, thing le thlalang tibantuk thilri phunphun kha fek tein an hren khawh hna caah hrennak hmun ah hmunhma biapi an lak. Vanlawng riantuannak ah, vanlawng sining a harmi thil sining tangah vanlawng sining a fekmi le a himmi a si khawh nakhnga epoxy - based adhesives cu vanlawng sining thilri pawl hrennak caah hman a si. Cu lio caan te ah cun, epoxy resins cu chemical rawhnak doh khawhnak le thlihrannak ttha a ngeimi an si i electronic thilri chiahnak thilri le thuhnak ah tampi hman an si. Tahchunhnak ah, electronic thilri chung i circuit board pawl cu lenglei pawngkam rawhnak in electronic thilri pawl huhphenh awk le electronic thilri hna i an fekmi le an hman khawhnak caah epoxy resins in an khumh tawn hna. Thil khuhnak lei ah, epoxy resin thuhnak cu thir cunglei kilvennak caah hman a si, cu nih cun acid le alkali tibantuk chemical thilri hna rawhnak kha ttha tein a doh khawh i thir thilri hna an riantuan caan a sauter khawh.

Chemical hmannak ttha dang:
Meikangh khamnak sii sernak: Meikanghnak khamnak sii tetrabromobisphenol A tibantuk cu BPA in ser khawh a si. Meikangh khamnak sii chapnak cu plastic thilri le thilpuan tibantuk chawlehnak ah a biapi tukmi a si. Plastic thilri ah, meikanghnak khamnak nih thilri hna meikanghnak kha ttha tein a zorter khawh. Meikanghnak hmun he an i tong tikah, a rawkmi meikangh khawh lomi gas asiloah meikangh khamnak thilri nih a chuahtermi a chuakmi carbonaceous tthen nih oxygen le lumnak thlennak kha a kham khawh i meikanghnak karhternak kha a kham khawh. Tahchunhnak ah, electronic le electric thilri hna i plastic kuang ah meikangh khamnak thilri chapnak nih meikanghnak ttihnung kha tampi a zorter khawh i mi nunnak le thilri a kilven khawh. Thilpuan ah, meikangh khamnak sii hmannak nih meikanghnak a chuahtertu thilthuam a ton tikah thilthuam kha a kangh khawhnak a zorter khawh i meikanghnak ah thilthuam kanghnak nih a chuahtermi fahnak kha a zorter khawh.

Antioxidants le Lungthawhnak Hmunhma: BPA cu plastic le rubber thilri cheukhat ah antioxidant le lumternak ah hman khawh a si. Plastic pawl ser lio ah, lum le oxygen tibantuk thil hna nih plastic tarnak le rawhnak a chuahter, thilri riantuan ning le riantuan caan a hnorsuan. Antioxidant pakhat in, BPA nih plastic system chung i free radicals pawl kha a tlaih khawh hna, oxidation reactions i chain transfer kha a kham khawh, cun plastics pawl an tarnak kha a tlaiter khawh. Cu lio caan te ah, lumnak a fekmi a si caah, BPA nih plastic pawl kha lumnak sang pawngkam ah a fekmi a siter khawh i plastic pawl kha a rawhnak, a rong aa thlengmi le a dang buaibainak hna kha sersiam asiloah hman lio ah a kham khawh. Rubber thilri ah, BPA zong nih cu bantuk rian a ttuan khawh, rubber lum le oxygen a tar khawhnak a tthanchoter i mawtaw ke le rubber seal tibantuk rubber thilri hna an riantuan caan a sauter.

Himnak kong he pehtlai in buainak le chawlehnak lei lehnak

Ngandamnak caah tihnungmi thil kawlnak: BPA cu a tlawm deuhmi fahnak a ngei i pawngkam le minung pum ah aa ṭhial kho i aa thleng kho. Hlathlainak tampi nih BPA nih estrogen bantuk thil a chuahter i minung endocrine system a buaiter khawh tiah an langhter. A hlei in ngakchia caah cun, an hrinnak tthanchonak cu a hnorsuan khawh, cu nih cun hrinnak he aa pehtlaimi zawtnak a chuahter khawh. Cu lio caan te ah cun, BPA nih hin insulin doh khawhnak zong a chuahter khawh, cu nih cun ngandamnak lei harnak a chuahter khawh, cu hna cu thisen thlum sang le thau tuknak tibantuk an si. Saram hneksaknak cheukhat nih caan saupi BPA he aa pehtlaimi hneksaknak saram hna cu a ttha lomi hrinnak organ tthanchonak le ziaza thlennak an ngei ti a langhter. Minung ngandamnak cungah BPA nih a chuahpimi thil kong hlathlainak cu a kal cuahmah ko nain, ram tampi nih ngandamnak caah tihnung a si lai ti an phang caah thilri pakhatkhat ah BPA hmannak kha kham dingin thil an tuah.

Industry Hramthawknak le Zulhphung Tthanchonak: BPA himnak kong he pehtlai in buainak a ummi zoh in, vawleicung ram tampi le pengtlang tampi nih a hmannak khamnak ding caah aa pehtlaimi phunglam hna kha a hnu hnu in an chuahpi. 2011 ah Tuluk Ngandamnak Vuanci Zung le a dang department paruk nih ngakchia hnuk thawl sernak, luhternak le zuarnak ah BPA hman lo ding in nawl an chuah. United States, Canada le European Union tibantuk ram le pengtlang hna nih rawl chiahnak, ngakchia thilri le a dangdang ah BPA hmannak kha an kham ve. Hi phunglam nih a herhmi hna he ton in, riantuannak nih BPA ai ah bisphenol S (BPS) le diphenyl sulfone tibantuk lam dang a kawl cuahmah. Cu lio caan te ah cun, thilchuahnak company hna nih thilchuah ningcang kha pehzulh tein an tthatter i BPA a tthialmi tlawmternak ding le thilchuak riantuan ning hngalh khawhnak ding caah a fek chin lengmangmi phunglam phunglam le thilchuak himnak caah a cawtu hna an herhmi kha an tlinter. Polycarbonate le epoxy resins sernak ah, chawlehthalnak nih BPA thlennak rate kha a tthanchoter i thilri chung i a tangmi a thlen rih lomi BPA kha thlennak dirhmun tthatternak le catalyst system tthaternak in a zorter.

A sining

Quality Control Sheet

Zeicah Kan BPA Kan Thim?

A ttha ngaimi le a fekmi riantuannak BPA thilri pawl pek awkah bia kan khiah. Thilri cawknak in chuahnak le thlennak tiang pehtlaihnak kip nih thilri pawl cu a thianghlimmi a sangmi, a thurhnawmmi a tlawmmi le hmelchunhnak vialte nih a sangmi riantuannak phunglam a tlinh khawh nakhnga fekmi tthatnak uknak phunglam a zulh. Plastic, resin, le chemical ttha tibantuk ah thilthar sernak le thanchonak hmuh khawhnak ding caah riantuanpi hawi hna nih an herhmi aa dangmi ningin aa tlakmi a phichuak a kan petu thiamsang R & D phu kan ngei. Cu lio caan te ah cun, thilri pawl kha a caan hmaan tein le a fekmi thilri pawl pek khawhnak ding caah thilri phorhnak tawlrelnak ttha tein kan ngei i cu nih cun thilri pawl kha a nganmi thilri chuah khawhnak ding caah a bawmh hna. BPA himnak kongah buainak a chuahtertu industry hnulei ah, phunglam thlennak kha biatak tein kan zoh, R & D thilri ah pehzulh tein tangka kan luhter, cun thilchuah ningcang hna kha a himmi le a himmi tthanchonak kha kan thanchoter i cu nih cun a cawtu hna kha a zulmi le zumhawktlakmi thilri pawl a pek hna.

Kan BPA kha thim, thilri ttha sernak ah pehzulh tein hlawhtlinnak tuah awkah kut i tlaih, harnak ton, le man ngeihnak ngan deuh ser.