Kev Taw Qhia Luv Luv Txog DOP thiab DOTP

DOP vs DOTP Plasticizers: Qhov txawv tseem ceeb yog dab tsi?

DOP thiab DOTP yog cov yas ua kom siv tau dav dav los ua kom PVC mos dua, yoog tau yooj yim dua thiab yooj yim dua rau kev ua. Qhov txawv tseem ceeb yog lawv cov qauv molecular: DOP, feem ntau yog hais txog DEHP, yog ib qho orthophthalate, thaum DOTP, tseem hu ua DEHT, yog ib qho terephthalate thiab feem ntau raug xaiv los ua lwm txoj hauv kev uas tsis yog orthophthalate.

DOP thiab DOTP ntawm Ib Saib

DOP thiab DOTP muaj cov mis molecular zoo ib yam thiab qhov hnyav molecular zoo sib xws, tab sis lawv yog cov isomers positional. Hauv DOP, ob pawg ester nyob sib ze ntawm lub nplhaib aromatic. Hauv DOTP, lawv nyob sib nrug. Qhov kev sib txawv ntawm cov qauv no cuam tshuam rau qhov tsis ruaj khov, kev tsiv teb tsaws chaw, tus cwj pwm hluav taws xob, kev kho mob tswj hwm thiab kev ua tau zoo mus sij hawm ntev hauv PVC yooj ywm.

Lus Cim: Hauv cov lag luam PVC, 'DOP' feem ntau txhais tau tias DEHP nrog CAS 117-81-7. Nws yuav tsum tsis txhob yuam kev nrog di-n-octyl phthalate, lossis DNOP, uas yog lwm yam tshuaj. Cov neeg yuav khoom yuav tsum xyuas kom meej lub npe tshuaj thiab tus lej CAS ntawm daim ntawv qhia kev nyab xeeb.

Cov Plasticizers Ua Haujlwm Li Cas Hauv PVC?

PVC uas tsis tau ua los ntawm yas yog ib yam khoom uas ruaj khov. Ib yam khoom uas ua rau yas nkag mus rau hauv nruab nrab ntawm cov saw hlau PVC polymer thiab txo cov zog uas tuav cov saw hlau ntawd ua ke. Cov saw hlau ntawd tuaj yeem txav tau yooj yim dua, uas ua rau qhov nyuaj txo qis thiab ua rau muaj kev ywj pheej, kev ntev thiab kev ua haujlwm tau zoo dua. Qhov tshwm sim kawg nyob ntawm cov khoom siv PVC, cov khoom siv uas ua rau yas, cov tshuaj ruaj khov, cov khoom sau, cov xim, txoj kev ua haujlwm thiab cov xwm txheej kev pabcuam.

DOP Plasticizer yog dab tsi?

DOP yog lub npe lag luam ib txwm muaj rau bis (2-ethylhexyl) phthalate, uas luv dua yog DEHP. Nws muaj keeb kwm ntev ua cov khoom siv yas PVC dav dav vim nws muaj kev ua kom mos muag zoo, sib xws dav dav, tus cwj pwm ua tiav thiab tus nqi sib tw.

Nyob ntawm cov cai hauv zos thiab cov lus qhia tiav ntawm cov khoom tiav, DOP tau siv rau hauv cov yeeb yaj kiab PVC hauv kev lag luam, tawv nqaij cuav, cov ntaub coated, pem teb, cov hoses, cov foob, gaskets, cov khoom khau thiab cov khoom sib xyaw cable xaiv. Nws cov xwm txheej kev cai lij choj yuav tsum tau kuaj xyuas kom zoo ua ntej nws tau teev tseg rau cov khoom uas muaj kev sib cuag nrog tib neeg.

DOTP Plasticizer yog dab tsi?

DOTP yog lub npe luv rau dioctyl terephthalate thiab tseem hu ua DEHT lossis bis (2-ethylhexyl) terephthalate. Nws yog cov kua ntshiab, tsis muaj ntxhiab tsw uas siv feem ntau hauv PVC uas yoog tau. Vim tias nws yog terephthalate es tsis yog orthophthalate, 'non-orthophthalate plasticizer' yog cov lus piav qhia meej tshaj plaws.

DOTP feem ntau raug soj ntsuam ua lwm txoj hauv kev rau DOP thaum lub chaw tsim khoom xav tau kev sib raug zoo PVC nrog rau qhov tsis tshua muaj zog, kev ruaj khov zoo dua, kev tiv taus kev tsiv teb tsaws chaw lossis kev rho tawm, cov khoom siv hluav taws xob muaj txiaj ntsig thiab cov qauv kev cai sib txawv.

Kev Sib Piv ntawm DOP thiab DOTP

Cov no yog kev sib piv dav dav hauv kev lag luam, tsis yog tus nqi lav. Cov qib lag luam sib txawv ntawm qhov huv thiab chaw tsim khoom, thaum kev ua tiav ntawm cov khoom sib xyaw hloov pauv nrog hom resin, plasticizer loading, fillers, stabilizers thiab cov xwm txheej sim. Siv cov ntaub ntawv kev siv tshuab ntawm cov neeg xa khoom thiab kev sim siv rau kev txiav txim siab zaum kawg.

1. Cov Qauv Molecular

DOP yog ib qho ortho isomer: nws cov pawg ester zaum ib sab ntawm ib leeg ntawm lub nplhaib aromatic. DOTP yog ib qho para isomer: cov pawg no nyob rau sab nraud. Qhov no yog vim li cas ob lub tshuaj lom neeg uas muaj tib lub mis tuaj yeem ua haujlwm sib txawv hauv PVC compound thiab raug kho sib txawv los ntawm cov cai.

2. Kev Ua Haujlwm Zoo thiab Kev Ua Khoom Yas

DOP paub txog kev ua kom mos mos thiab kev ua tiav kwv yees tau. DOTP tuaj yeem ua tiav qhov nyuaj thiab kev ua haujlwm zoo sib xws hauv ntau cov qauv, tab sis nws yuav tsum tsis txhob raug kho zoo li kev hloov pauv ib-rau-ib. Tus cwj pwm fusion, viscosity thiab kev sib cuam tshuam nrog cov fillers lossis cov plasticizers thib ob yuav hloov pauv.

3. Kev Hloov Pauv thiab Kev Nyob Mus Ib Txhis Ntev

Kev poob ntawm cov yas ua rau muaj ntxhiab tsw lossis pos huab ntau ntxiv thiab ua rau PVC uas yoog tau nyuaj dua lossis tawg yooj yim dua thaum lub sijhawm dhau mus. DOTP feem ntau raug xaiv thaum qhov kev hloov pauv qis dua thiab kev txhim kho kev khaws cia yas ua kom ntev yog qhov tseem ceeb. Txheeb xyuas qhov kev thov nrog kev laus cua sov thiab kev sim poob phaus uas phim qhov kub thiab txias uas xav tau.

4. Kev Tsiv Teb Tsaws Chaw thiab Kev Rho Tawm Tsis Tau

Kev hloov pauv tuaj yeem ua rau qhov chaw nplaum, xim ploj, teeb meem luam tawm lossis poob qhov yooj ywm. Kev rho tawm yuav tshwm sim thaum PVC kov dej, tshuaj ntxuav, roj, roj lossis cov kuab tshuaj. DOTP feem ntau raug txiav txim siab thaum xav tau kev tiv thaiv zoo dua, tab sis qhov kub thiab txias, lub sijhawm kov, qhov concentration ntawm cov yas thiab cov khoom sib ze txhua yam cuam tshuam rau qhov tshwm sim.

5. Kev Ua Haujlwm Kub thiab Txias

Ob qho plasticizers tuaj yeem txhawb nqa kev ua haujlwm kub hauv PVC uas yoog tau. DOTP feem ntau raug soj ntsuam qhov twg kev laus thaum tshav kub, kev poob qis thiab kev ywj pheej mus sij hawm ntev yog qhov tseem ceeb. Rau qhov txias heev, cov neeg tsim khoom tuaj yeem sib xyaw cov plasticizer tseem ceeb nrog adipate lossis sebacate. Rau kev pabcuam cable kub siab, cov trimellitate qis dua yuav tsim nyog dua.

6. Kev rwb thaiv hluav taws xob

DOTP tau raug soj ntsuam dav dav rau cov hlau PVC uas yooj ywm thiab cov khoom sib xyaw ua ke vim nws muaj kev sib xyaw ua ke ntawm kev rwb thaiv hluav taws xob, kev ywj pheej thiab kev ruaj khov. Cov khoom sib xyaw ua tiav yuav tsum tseem dhau qhov yuav tsum tau ua rau ntim resistivity, dielectric lub zog, cua sov laus, tensile retention, elongation retention thiab flame performance.

7. Tus nqi thiab Tag Nrho Tus Nqi

Tus nqi plasticizer txav mus nrog cov khoom noj khoom haus, thaj chaw, qhov ntim xaj thiab kev xa khoom, yog li tus nqi DOP-rau-DOTP ruaj khov tsis txhim khu kev qha. Piv rau tag nrho cov nqi tsim khoom, cov txiaj ntsig ua tiav, kev pheej hmoo tsis ua haujlwm, lub neej khoom, cov kev xav tau kuaj thiab kev nkag mus rau kev ua lag luam es tsis yog tus nqi ib tonne xwb.

DOP vs DOTP Daim Ntawv Thov

Cov Yeeb Yaj Kiab PVC Yooj Yim thiab Daim Ntawv

Cov tshuaj yas tswj cov mos mos, elongation, fold endurance thiab qis-kub tus cwj pwm hauv cov yeeb yaj kiab PVC yooj ywm. DOP yuav siv tau rau hauv cov ntawv thov kev lag luam dav dav, thaum DOTP raug soj ntsuam ntau dua rau cov yeeb yaj kiab uas xav tau kev ruaj khov lossis tsis-orthophthalate positioning. HSQY khoom siv PVC zaj duab xis mos rau kev luam ntawv, pem teb, ntaub thaiv, kev tiv thaiv thiab kev siv hauv kev lag luam.

Cov Hlau thiab Cable Sib xyaw

Cov neeg tsim cov cable sib piv cov ntim resistivity, thermal aging, qis-kub yooj ywm, volatility, flame-retardant sib xws thiab processability. DOTP yog ib qho neeg sib tw rau cov cable yooj ywm dav dav, thaum cov plasticizers tshwj xeeb yuav tsum tau rau qhov kub siab dua lossis qhov chaw hnyav dua.

Tawv Tawv Dag thiab Cov Ntaub Npog

Kev xaiv cov tshuaj yas cuam tshuam rau qhov viscosity ntawm cov txheej, kev sib xyaw, kev xav ntawm qhov chaw, kev embossing, kev tiv thaiv kab mob txias, kev ua kom pos huab thiab kev laus. DOTP yuav raug soj ntsuam qhov twg tus neeg tsim khoom xav tau kev hloov pauv qis dua, kev khaws cia mos ntev dua lossis txo cov ntsiab lus orthophthalate.

Pem teb thiab phab ntsa

Cov plag tsev PVC xav tau qhov sib npaug ntawm kev sib xyaw, kev ywj pheej, kev ruaj khov ntawm qhov ntev, kev ua haujlwm hnav, cov hom phiaj tso pa tawm hauv tsev thiab tus nqi. DOTP tau txiav txim siab dav hauv cov qauv pem teb niaj hnub no, tshwj xeeb tshaj yog thaum cov lus qhia tsis yog orthophthalate lossis cov kev cai yuav khoom uas tso pa tawm tsawg siv tau.

Cov Yeeb Nkab, Cov Seals, Gaskets thiab Plastisols

Rau cov hoses, seals, gaskets, dip coatings, sealants thiab plastisols, kev xaiv nyob ntawm viscosity, fusion, compression set, migration thiab resistance rau cov kua dej lossis qhov chaw sib cuag. Kev ntsuam xyuas kev rho tawm tshwj xeeb ntawm daim ntawv thov muaj kev ntseeg siab dua li qhov kev thov dav dav tias ib qho plasticizer yeej ib txwm zoo dua.

Daim Ntawv PVC Rigid

Cov PVC tawv feem ntau muaj me ntsis lossis tsis muaj cov khoom yas tseem ceeb vim tias qhov tawv thiab qhov ruaj khov yog qhov yuav tsum tau muaj. Cov neeg yuav khoom ntawm Daim ntawv PVC tawv yuav tsum paub tseeb tias cov khoom tsis yog plasticized, hloov kho me ntsis lossis tsim rau kev siv kawg yooj ywm.

Yuav Xaiv Li Cas Ntawm DOP thiab DOTP

Qhov kev xaiv zoo nyob ntawm cov lus qhia ntawm cov khoom, tsis yog lub npe yas xwb. Siv cov lus qhia txiav txim siab hauv qab no ua qhov pib.

Ua ntej xaiv, txhais lub hom phiaj Shore hardness, qib resin, plasticizer loading, txoj kev ua, qhov kub thiab txias ntawm kev pabcuam, qhov txwv ntawm kev laus ntawm cua sov, kev tsiv teb tsaws chaw lossis kev rho tawm, qhov xav tau hluav taws xob, lub hom phiaj tsw, lub neej xav tau, kev lag luam mus rau qhov chaw thiab tag nrho cov nqi tsim khoom.

Yuav ua li cas hloov DOP nrog DOTP hauv PVC Formulation

DOTP tuaj yeem hloov DOP hauv ntau yam khoom PVC uas yoog tau, tab sis kev hloov pauv ntawm qhov ntau lawm yuav tsum ua raws li kev sim tswj hwm es tsis yog kev hloov pauv ib leeg rau ib qho.

1. Txhais lub hauv paus: sau cov tshuaj DOP tam sim no, Shore hardness, tensile strength, elongation, fusion behavior, viscosity thiab processing window.

2. Khiav kev sim hauv chav kuaj: pib ze rau qib ph tam sim no, tom qab ntawd kho qhov DOTP loading kom mus txog qhov nyuaj thiab cov khoom siv kho tshuab.

3. Tshawb xyuas cov txheej txheem ua: ntsuas tus cwj pwm qhuav-sib xyaw, lub sijhawm sib xyaw, lub zog torque, lub zog extrusion, kev teb calendering lossis plastisol viscosity raws li siv tau.

4. Sim kev ua tau zoo ntawm kev siv kawg: piv rau kev laus ntawm cua sov, kev poob phaus, kev ywj pheej txias, kev tsiv teb tsaws chaw, kev rho tawm, kev ua kom pos huab, kev tiv taus hluav taws xob thiab ntxhiab tsw piv rau cov khoom qhia tshwj xeeb.

5. Tshuaj xyuas qhov ua raws li txoj cai: xyuas kom meej tias qib DOTP, txhua yam khoom ntxiv thiab cov khoom tiav lawm raws li cov kev cai ntawm lub khw.

6. Paub meej tias ntawm kab ntau lawm: ua kom tiav qhov kev tswj hwm kom loj hlob ua ntej hloov cov mis tshuaj lag luam.

Kev Nyab Xeeb thiab Kev Cai Lij Choj ntawm DOP thiab DOTP

DEHP, cov tshuaj feem ntau muag ua DOP, tshwm sim nyob rau hauv European Chemicals Agency Candidate List thiab Authorisation List vim nws muaj tshuaj lom rau kev yug me nyuam thiab cov khoom cuam tshuam rau endocrine. Nws kuj tseem muaj kev txwv hauv cov khoom lag luam EU tshwj xeeb. EU RoHS Directive txwv DEHP hauv cov khoom siv sib xws siv hauv cov khoom siv hluav taws xob thiab hluav taws xob, raws li qhov ntau thiab tsawg thiab kev zam.

Hauv Tebchaws Meskas, Pawg Neeg Saib Xyuas Kev Nyab Xeeb Khoom Siv Khoom Siv Txwv tsis pub cov khoom ua si thiab cov khoom siv zov menyuam yaus uas muaj ntau dua 0.1% DEHP hauv cov khoom yas uas yooj yim nkag tau. Lwm lub tebchaws thiab lwm pawg khoom siv cov kev txwv, kev zam, cov ntaub ntawv thiab cov cai kuaj sib txawv.

DOTP muaj cov tshuaj sib txawv thiab cov cai tswjfwm, tab sis kev siv DOTP tsis ua rau cov khoom tiav lawm 'muaj kev nyab xeeb,' 'qib khoom noj,' 'qib kho mob,' 'muaj kev nyab xeeb rau cov khoom ua si,' 'tsis muaj phthalate,' 'ua raws li REACH' lossis 'ua raws li RoHS.' Cov lus thov no xav tau pov thawj rau qib khoom siv tshwj xeeb, pob khoom ntxiv tag nrho, cov xwm txheej raug, khoom tiav lawm thiab kev ua lag luam.

Cov Lus Qhia Txog Kev Sau Npe

• PubChem: Di(2-ethylhexyl) phthalate (DEHP)

• ECHA: Bis(2-ethylhexyl) terephthalate (DOTP/DEHT)

• Daim Ntawv Teev Npe ECHA: Bis(2-ethylhexyl) phthalate (DEHP)

• EUR-Lex: RoHS Cov Lus Qhia Txog Kev Cai Tswjfwm (EU) 2015/863

• Tebchaws Meskas CPSC: Cov kev cai thiab cov lus nug nquag nug txog Phthalates

Cov Lus Nug Feem Ntau Txog DOP thiab DOTP

Qhov txawv ntawm DOP thiab DOTP yog dab tsi?

DOP feem ntau yog DEHP, ib qho orthophthalate plasticizer. DOTP yog DEHT, ib qho terephthalate plasticizer. DOP raug suav tias yog qhov ua tau zoo thiab tus nqi ntawm kev ua kom yas zoo, thaum DOTP feem ntau raug xaiv rau qhov tsis tshua muaj kev hloov pauv, kev ruaj khov zoo dua, kev tiv taus kev tsiv teb tsaws chaw, cov khoom siv hluav taws xob thiab qhov chaw tsis yog orthophthalate.

DOP thiab DEHP puas yog tib yam khoom siv?

Hauv kev siv ua lag luam, DOP feem ntau yog hais txog DEHP, lossis bis (2-ethylhexyl) phthalate, CAS 117-81-7. Vim tias cov lus luv luv tuaj yeem tsis sib xws, xyuas kom meej lub npe tshuaj lom neeg tag nrho thiab tus lej CAS ua ntej yuav.

DOTP thiab DEHT puas yog tib yam plasticizer?

Yog. DOTP thiab DEHT yog cov npe nrov rau bis(2-ethylhexyl) terephthalate, CAS 6422-86-2. DEHT txheeb xyuas cov qauv 2-ethylhexyl terephthalate kom meej dua.

DOTP puas yog cov khoom siv yas uas tsis muaj phthalate?

Feem ntau DOTP raug muag ua non-phthalate vim nws tsis yog orthophthalate xws li DEHP. 'Non-orthophthalate plasticizer' yog cov lus piav qhia meej dua txog tshuaj lom neeg. Txhua qhov kev thov tias tsis muaj phthalate rau cov khoom tiav lawm yuav tsum tau txhawb nqa los ntawm cov lus qhia tshwj xeeb thiab txoj kev sim.

DOTP puas muaj kev nyab xeeb dua li DOP?

DOTP yog ib qho kev xaiv dav dav vim tias DEHP raug kev txwv ntau heev. Txawm li cas los xij, kev nyab xeeb nyob ntawm qhov txaus ntshai, kev raug, kev huv, koob tshuaj thiab kev siv. Tsis muaj ib qho plasticizer twg yuav tsum piav qhia tias muaj kev nyab xeeb thoob ntiaj teb yam tsis muaj pov thawj rau daim ntawv thov tshwj xeeb.

DOTP puas hloov tau DOP ncaj qha?

DOTP tuaj yeem hloov DOP hauv ntau cov qauv PVC uas yoog tau, tab sis tsis tuaj yeem lav qhov hloov pauv ib qho rau ib qho. Kev siv tshuaj, cov tshuaj stabilizer, cov khoom sau, qhov kub thiab lub sijhawm ua haujlwm thiab lub sijhawm sib xyaw yuav tsum tau hloov kho. Ua kom tiav cov kev sim hauv chaw kuaj thiab kev tsim khoom ua ntej hloov pauv tag nrho.

DOTP puas tiv taus cua sov zoo dua li DOP?

Feem ntau DOTP raug xaiv rau qhov tsis tshua muaj kev hloov pauv thiab kev ua haujlwm kub-laus dua, tab sis cov khoom sib xyaw PVC tiav txiav txim siab qhov tshwm sim kawg. Paub meej tias kev ua tau zoo nrog kev poob phaus, kev khaws cia tensile, kev khaws cia elongation thiab kev sim laus tshwj xeeb rau daim ntawv thov.

DOTP puas haum rau kev rwb thaiv tsev hlau thiab cable?

DOTP feem ntau siv rau hauv cov hlau PVC uas yoog tau thiab cov khoom sib xyaw ua ke vim nws tuaj yeem muab kev rwb thaiv hluav taws xob zoo, kev ywj pheej thiab kev ruaj khov. Cov khoom sib xyaw ua ke tiav lawm yuav tsum tseem ua tau raws li tus qauv cable, qhov ntsuas kub, kev sim hluav taws xob, kev sim laus thiab cov nplaim taws uas yuav tsum tau ua.

DOTP puas haum rau PVC uas kov tau zaub mov?

Kev tsim nyog tsis yog ua tau li ntawd. Ib qib DOTP tshwj xeeb thiab cov khoom tiav lawm yuav tsum ua tau raws li cov npe zoo, cov kev txwv ntawm cov khoom sib xyaw, cov kev txwv ntawm kev tsiv teb tsaws chaw, hom khoom noj, lub sijhawm sib cuag thiab qhov kub thiab txias hauv kev lag luam xa khoom mus rau lwm lub tebchaws.

Puas siv tau DOP rau hauv cov khoom kho mob?

DEHP-plasticized PVC muaj keeb kwm siv rau kev kho mob, tab sis cov kev siv no tuaj yeem cuam tshuam nrog kev ntsuam xyuas kev pheej hmoo, kev sau npe, kev raug mob thiab cov cai tswjfwm. DOP dav dav yuav tsum tsis txhob raug muag ua qib kho mob yam tsis muaj ntaub ntawv pov thawj rau cov khoom siv, khoom siv thiab kev ua lag luam.

Cov ntaub ntawv twg yuav tsum tau cov neeg yuav khoom thov los ntawm tus neeg muag khoom yas?

Thov daim ntawv SDS, TDS, COA, lub npe tshuaj, tus lej CAS, cov lus qhia txog kev huv thiab cov lus tshaj tawm tseem ceeb. Rau kev siv kawg uas rhiab heev, thov cov ntawv qhia txog kev sim tshuaj txwv, kev tsiv teb tsaws chaw lossis cov khoom tiav lawm uas phim lub khw muag khoom.

Xaus Lus: Koj Yuav Tsum Xaiv Lub Plasticizer Twg?

DOP thiab DOTP ob leeg tuaj yeem ua kom PVC yooj ywm ua yas tau zoo, tab sis lawv daws tau ntau yam kev yuav khoom thiab kev ua tau zoo. DOP tej zaum yuav siv tau rau cov khoom lag luam uas raug tso cai, uas muaj kev cuam tshuam nrog tus nqi. DOTP feem ntau yog tus neeg sib tw pib muaj zog dua thaum muaj kev ruaj khov, kev ua tau zoo ntawm hluav taws xob, kev tiv taus kev hloov pauv, lub neej ua haujlwm lossis cov lus qhia tsis yog orthophthalate tseem ceeb.

Qhov kev xaiv zoo tshaj plaws nyob ntawm seb lub hom phiaj puas tawv, cov txheej txheem ua haujlwm, qhov kub thiab txias, qhov chaw rho tawm, lub neej ua haujlwm, kev lag luam mus rau qhov twg thiab kev kuaj xyuas uas yuav tsum tau ua. Saib cov ntaub ntawv pov thawj thiab lees paub tag nrho cov khoom sib xyaw PVC ua ntej tsim khoom lag luam.

Yog xav tau kev pab xaiv daim ntawv PVC lossis zaj duab xis PVC uas yoog tau, tiv tauj HSQY Yas nrog koj cov khoom hom, tuab, qhov ntev, kev ywj pheej, txoj kev ua tiav, kev pabcuam kub, kev lag luam mus rau qhov chaw thiab kev ua raws li cov cai.