Plasticizer yog cov additive ntau nyob rau hauv cov yas additives, mas DOP, BOP, DIBP thiab DIDP, Tuam Tshoj tau dhau los ua tus tsim tawm khoom loj tshaj plaws thiab xa khoom ntawm cov yas yas hauv Asia. Teb "Assistant" rau cov lus qhia ntxiv
Ua ntej, lub tswvyim ntawm cov yas lim
Txhua yam khoom uas yuav txo tau cov kub ntawm cov pob txha, ua kom lub cev muaj zog ntawm lub cev thiab lub softness ntawm cov khoom hu ua plasticizers. Thaum lub plhaub ziab ntxiv rau cov khoom siv xuab zeb, cov yaj viscosity, lub iav hloov kub thiab qhov elasticity tuaj yeem hloov tsis tau nws cov khoom siv tshuaj yooj yim, qhov kev txhim kho cov workability thiab kev txhim kho cov softness ntawm cov khoom thiab cov khoom Tensile ntawm cov khoom
Qhov ob, cov qauv tshuaj ntawm cov qauv yasizers
1. muaj kev sib tov ntawm ib pawg neeg sib txawv thiab ib pab pawg neeg uas tsis yog hnav kub
Thib peb, txoj cai plawg yas rau yas
1. Cov yam khoom tiv thaiv cov yas thoob yas hauv cov ntaub ntawv polymer
1) kev sib deev sib txuas lus
2) Crystallinity
Cov khoom ntawm polymer uas muaj cov tshuab chaav nplaum nrog lub siab tuaj yeem ua tau nyob rau hauv cov cheeb tsam hauv qhov chaw tsim nyog, thiab cheeb tsam crystallization ntau ruaj dua thaj av amorphous, qhov chaw dawb yog me thiab nyuaj nyuaj rau kev pov hwm. Nyob rau hauv luv luv, Polymeric cov ntaub ntawv yog yas thiab yuav tsum tsis muaj zog ntawm lawv cov kev sib txuas ntawm kev sib tsoo thiab rhuav tshem cov cheeb tsam crystalline. Teb "Assistant" rau cov lus qhia ntxiv
2. Txoj cai yas yas yas yas
Ntawm lub hauv paus ntawm kev tsim cov yas rau yas, cov kev lag luam muaj ntau yam qauv ntawm kev pom, xws li: lubrication theory, gel theory thiab dawb ntim theory, feem ntau lees txais yog: yas polymer yas khoom yog vim muaj cov khoom polymer Cov nyhuv ntawm aggregation ntawm molecules yog tsis muaj zog. Ntawd ces yog lub plhaub zom zaws rau cov yas hlau zom zom zom zom zom zom zom zom zom zom zom zom zom, ua rau muaj zog ntawm cov polymer molecular chains, txo cov crystallinity ntawm lub polymer, Plasticizer ua qhov nce ntawm cov polymer
3. Cov khoom siv yas los tiv thaiv kabmob yas
Thaum twg tus nqi ntawm cov yas limizer rau ib qho twg, tab sis yuav ua rau cov ntaub ntawv tawv nqaij ua kom tawv nqaij, ua rau kom tsis muaj zog, qhov tshwm sim ntawm qhov muaj zog ntawm qhov txo lub zog. Nws feem ntau ntseeg hais tias yog vim li cas rau cov nyhuv yas los tiv thaiv kab mob yog tias ib qho me me ntawm cov yas limizer ua rau lub nrig polymer yooj yim txav, Plasterizer thiab txhawb nqa qhov orientation thiab crystallization ntawm thaj av amorphous.
Kev faib tawm ntawm cov phom
1. Raws li kev taw qhia tau muab faib ua: hauv plawv yas thiab yas lim
Internal plasticizers - Plasticizers rau cov khoom siv polymer kuj tuaj yeem nkag tau rau hauv lub tshuab copolymerized los yog siv raws li lub npe hu ua "bondeders bondeders", nrog kom zoo dua ntawm lub cev muaj zog, Plasticizer tab sis tsis yooj yim rau kev siv, thiab lwm yam kev ua yuam kev, nws tsis nquag siv.
Kev tiv thaiv rau sab nrauv - ntxiv rau txoj kev qhia txog cov ntaub ntawv polymer, plasticizers, hu ua "additive plasticizer", nws qhov zoo tshaj plaws yog pab kom yooj yim rau kev tswj cov kev tswj thiab kev tswj cov khoom zoo, feem ntau yog siv cov yas Agent, feem ntau raug xa mus rau cov yas thawv uas tawm sab nraum lub thawv yas. Teb "Assistant" rau cov lus qhia ntxiv
2. Raws li cov kev sib haum xeeb tau muab faib ua cov yas yas thiab cov yas pab cuam yas
Lub plawv yas - nrog cov ntaub ntawv yooj yim polymer (ntxaib, roj hmab roj hmab) qhov zoo dua qub, nws cov khoom siv tsis tuaj yeem nkag mus rau cov khoom siv ntawm qhov chaw tsis muaj zog, Lub thawv yas thiab muab tso rau hauv cheeb tsam crystallization, los yog "qhov hnyav plasticizer "Siv tau nyob ib leeg. Cov khoom siv pabcuam - nrog rau cov ntaub ntawv yooj yim polymer (reag, roj hmab rubber) yuav pluag, cov molecules tsuas nkag tau cov khoom amorphous ntawm thaj tsam amorphous, thiab tsis tuaj yeem mus rau hauv cov cheeb tsam crystallization, tsuas yog nrog lub plhaub loj siv, siv tsis tau yuav siv tib leeg xwb.
3. Raws li kev ua tau raws cai yuav muab faib ua hom phiaj, kev ua tau zoo thiab cov yas yas tshwj xeeb
Universal plasticizer (GP) - kev siv nyiaj, kev ua haujlwm zoo thiab kev ua tau zoo ntawm cov phom. Phalalate-based plasticizers yog cov qauv dav dav dav dav-cov yas yas. High Performance Plasticizer (PP) - Lub hnab yas uas muab qee yam / qee yam khoom, xws li:
① khoom hnyav hnyav (PP-SS) yas rau yas: muab cov khoom zoo nkauj khov kho, feem ntau siv cov roj ntsha tshwj xeeb phthalate, siab ntxhiab cov ntsiab lus ntawm cov phthalic acid esters xws li benzoate, tricresyl phosphate thiab cov zoo li.
② low temperature resistant (PP-LT) plasticizer: muab qhov tshwj xeeb yog qhov tsis zoo rau txoj kev sib txawv ntawm txoj kev coj, uas yog lub npe hu ua txias yas yas, feem ntau yog siv cov tshuaj fiber ntau dib dib.
③ qes qaug zog (PP-LV) yas: nrog ib lub voj voog tshwj xeeb uas tsis tshua muaj siab, kuj hu ua cov thawv rau cov khoom siv hluav taws xob, feem ntau yog siv cov khoom khib nyiab thiab cov roj pleev.
Tshwj xeeb hom plasticizer - muab tau ib qho / qee yam khoom tshwj xeeb ntawm cov yas lim, xws li:
① qis diffusion (SP-LD) plasticizer: ib qho tshwj xeeb qis diffusion, los yog lub zog yas yas, feem ntau siv polyester.
② cua sov-ruaj khov (SP-Stab) yas rau yas: ob qho tib si PVC ntu hluav taws xob ua kom muaj zog, feem ntau siv cov tshuaj epoxy feem ntau.
③ nplhaib retardant (SP-FR) plasticizer: hluav taws xob ua haujlwm, feem ntau siv phosphate thiab halogenated hydrocarbons.