Video: Vim li cas plasticizer siv thaum lub sij hawm yas molding?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Plasticizers yog hom tshwj xeeb ntawm additives. Tsis muaj plasticizers , feem ntau ntawm cov txhaj tshuaj molding Cov tebchaw yuav tsis haum rau lub hom phiaj ntawd, thiab qee qhov sib xyaw ntawm cov roj hmab yuav tsis raug tsim tawm ntawm tag nrho. Plasticizers ua yas elastic, extensible, yoog raws, thiab yas ntawm qhov kub thiab txias.
Kuj paub yog, lub hom phiaj ntawm plasticizers yog dab tsi?
Plasticizers yog siv los hloov PVC, cov yas tawv tawv, rau hauv cov khoom muag muag, hloov tau, thiab elastic. A yas yas uas yog sib xws nrog PVC thiab ua pov thawj tsis tshua muaj volatility, zoo permanence, thiab high efficiency yog xa mus rau ib tug thawj. yas yas.
Tom qab, lo lus nug yog, dab tsi plasticizers siv hauv PVC? Plasticizers rau plastics yog additives, feem ntau phthalate esters nyob rau hauv PVC daim ntawv thov. Yuav luag 90% ntawm plasticizers yog siv hauv PVC , muab cov khoom no txhim kho yooj thiab durability. Feem ntau yog siv nyob rau hauv cov yeeb yaj duab thiab cables.
Vim li cas cov plasticizers ntxiv rau polymers?
Plasticizers nce qhov ntws thiab thermoplasticity ntawm a polymer los ntawm kev txo cov viscosity ntawm cov polymer yaj, lub iav hloov pauv kub (Tg), qhov kub thiab txias (Tm) thiab elastic modulus ntawm cov khoom tiav yam tsis hloov pauv cov yam ntxwv ntawm cov tshuaj lom neeg. plasticized khoom.
Dab tsi yog plasticizers nrog piv txwv?
Ob qhov zoo piv txwv ntawm phthalate plasticizers yog DEHP (Di-Ethylhexyl Phthalate), thiab DINP (Di-Isononyl Phthalate). DEHP tau siv ntau tshaj plaws, thiab tseem yog yas yas ntawm kev xaiv rau tag nrho cov PVC kho mob thiab phais cov khoom.
Pom zoo:
Lub sij hawm ceeb toom yog dab tsi nyob rau hauv lub sij hawm probation?
Lub sij hawm ceeb toom yuav muaj nyob rau hauv tus neeg ua hauj lwm daim ntawv cog lus uas yuav muab rau ib tug luv luv lub sij hawm ceeb toom nyob rau hauv probation, xws li ib lub lis piam thov kev txiav txim pib los ntawm tus tswv hauj lwm los yog pab pawg neeg
Lub sij hawm luv luv thiab lub sij hawm ntev yog dab tsi?
Lub sijhawm luv luv feem ntau suav nrog cov txheej txheem uas qhia cov txiaj ntsig hauv ib xyoos. Cov tuam txhab lag luam tsom cov phiaj xwm nruab nrab ntawm cov txiaj ntsig uas siv ob peb xyoos kom ua tiav. Cov phiaj xwm mus sij hawm ntev suav nrog tag nrho cov hom phiaj ntawm lub tuam txhab tau teeb tsa plaub lossis tsib xyoos yav tom ntej thiab feem ntau yog ua raws li kev ncav cuag lub hom phiaj nruab nrab
Vim li cas me nyuam ua hauj lwm phem thaum lub sij hawm muaj kiv puag ncig?
Cov menyuam yaus feem ntau yuav tsum tau ua haujlwm nyob rau hauv cov xwm txheej txaus ntshai heev. Lawv poob nqua lossis ntiv tes ua haujlwm ntawm cov tshuab muaj zog nrog kev cob qhia me ntsis. Lawv tau ua haujlwm hauv cov mines nrog qhov cua tsis zoo thiab tsim cov kab mob ntsws. Qee lub sij hawm lawv tau ua haujlwm nyob ib puag ncig cov tshuaj txaus ntshai uas lawv tau mob los ntawm cov pa taws
Lub sij hawm ceeb toom rau ib lub sij hawm luv luv yog dab tsi?
Nyob rau hauv cov ntaub ntawv ntawm ib lub lim tiam, los yog txhua hli SPT, muab qhov nqi xauj tsev nyob rau hauv no, ib tug sij hawm mus xauj tsev yuav tsum tau muab 28 hnub, los yog ib lub hlis daim ntawv ceeb toom, raws li ib tug formal Notice-to-Tout sau ntawv mus rau tus tswv tsev, thiab nyob rau hauv cov ntaub ntawv no. rooj plaub tus tswv tsev yuav tsum tau ceeb toom yam tsawg kawg ntawm ob lub hlis
Cov neeg ua li cas thaum lawv lub sij hawm dawb thaum lub sij hawm Kev Nyuaj Siab Loj?
Cov neeg tau pom txoj hauv kev tshwj xeeb thiab pheej yig los lom zem rau lawv tus kheej thaum muaj Kev Nyuaj Siab Loj. Lawv mloog ntau yam xov tooj cua los yog coj mus ua yeeb yaj kiab pheej yig. Lawv kuj tau koom nrog hauv kev ua kis las, fads, lossis kev lom zem kev sib tw uas tsis raug nqi dab tsi hlo li