Xaiv Cov Khoom Siv PVC Stabilizer Zoo Rau Cov Tarpaulins Uas Tiv Thaiv Huab Cua Thiab Cov Khoom Siv Sab Nraud

Txij li cov ntaub thaiv dej hauv qhov chaw ua haujlwm uas tiv thaiv cov ntaub ntawv los ntawm nag thiab hnub mus rau cov ntaub thaiv dej PVC uas siv rau cov ntaub thaiv sab nraum zoov thiab cov khoom siv pw hav zoov, cov khoom siv PVC uas yoog tau yog cov khoom siv ua haujlwm sab nraum zoov. Cov khoom no ntsib kev ntxhov siab tsis tu ncua: tshav ntuj kub heev, nag ntub, kub hloov pauv heev, thiab kev hnav lub cev tas li. Dab tsi ua rau lawv tsis tawg, ploj mus, lossis tawg ua ntej lub sijhawm? Cov lus teb nyob rau hauv cov khoom ntxiv tseem ceeb: PVC stabilizers. Rau tarpaulin, Canvas PVC, thiab lwm yam khoom siv PVC sab nraum zoov, kev xaiv cov stabilizer zoo tsis yog tsuas yog kev xav tom qab tsim khoom xwb - nws yog lub hauv paus ntawm kev ntseeg siab ntawm cov khoom thiab lub neej ntev. Hauv cov blog no, peb yuav tshawb nrhiav vim li cas PVC stabilizers tsis tuaj yeem sib tham rau cov khoom siv PVC sab nraum zoov, cov kev xav tseem ceeb rau kev xaiv qhov yog, thiab cov khoom ntxiv no sawv li cas rau cov teeb meem tshwj xeeb ntawm kev siv sab nraum zoov.

Vim li cas cov khoom siv PVC sab nraum zoov thiaj xav tau cov khoom ruaj khov tshwj xeeb

Tsis zoo li cov khoom siv PVC sab hauv tsev, uas tau tiv thaiv los ntawm huab cua, cov khoom siv sab nraum zoov raug rau cua daj cua dub zoo meej ntawm kev puas tsuaj. PVC nws tus kheej yog qhov tsis ruaj khov ntawm qhov kub; thaum ua tiav lossis raug cua sov dhau sijhawm, nws pib tso tawm hydrogen chloride, pib ua cov tshuaj tiv thaiv uas rhuav tshem cov saw hlau polymer. Rau cov khoom siv sab nraum zoov, cov txheej txheem no raug ua kom nrawm los ntawm ob qho tseem ceeb: ultraviolet (UV) hluav taws xob los ntawm lub hnub thiab rov ua dua thermal cycling - swinging los ntawm qhov kub thiab txias thaum nruab hnub mus rau hmo txias.

Kev tawg ntawm UV ua rau puas tsuaj tshwj xeeb. Nws nkag mus rau hauv PVC matrix, rhuav tshem cov tshuaj sib txuas thiab ua rau photo-oxidation. Qhov no ua rau pom cov cim ntawm kev puas tsuaj: daj, brittleness, thiab poob ntawm kev ywj pheej. Lub tarpaulin uas tsis ruaj khov zoo yuav pib tawg tom qab ob peb lub hlis ntawm lub caij ntuj sov lub hnub, ua rau nws tsis muaj txiaj ntsig rau kev tiv thaiv cov khoom thauj. Ib yam li ntawd, Canvas PVC siv rau hauv cov rooj tog zaum sab nraum zoov lossis awnings tuaj yeem ua rau tawv thiab yooj yim rhuav, tsis tuaj yeem tiv taus txawm tias cua me me. Kev hloov pauv thermal ua rau qhov kev puas tsuaj no hnyav dua; thaum PVC nthuav dav thiab cog lus nrog kev hloov pauv kub, microcracks tsim, muab UV hluav taws xob thiab noo noo yooj yim nkag mus rau hauv lub hauv paus polymer. Ntxiv rau kev raug rau noo noo, tshuaj (xws li cov pa phem lossis chiv), thiab kev puas tsuaj lub cev, thiab nws meej meej vim li cas cov khoom PVC sab nraum zoov xav tau kev ruaj khov kom ua tau raws li kev cia siab ntawm 5-10 xyoo.

Lub Luag Haujlwm Ntau Yam ntawm PVC Stabilizers

Lub luag haujlwm ntawm PVC stabilizer hauv cov ntawv thov no yog ntau yam. Tshaj li qhov ua haujlwm yooj yim ntawm kev ua kom hydrogen chloride tsis muaj zog thiab tiv thaiv kev puas tsuaj thermal thaum lub sijhawm ua tiav, cov stabilizers rau tarpaulin thiab Canvas PVC yuav tsum muab kev tiv thaiv UV ntev, tswj kev ywj pheej, thiab tiv thaiv kev rho tawm los ntawm dej lossis tshuaj lom neeg. Qhov no yog qhov kev txiav txim siab siab, thiab tsis yog txhua tus stabilizers ua tau raws li txoj haujlwm. Cia peb rhuav tshem cov hom PVC stabilizers zoo tshaj plaws rau sab nraum zoov tarpaulin, Canvas PVC, thiab cov khoom lag luam cuam tshuam, nrog rau lawv lub zog, kev txwv, thiab cov ntaub ntawv siv zoo tagnrho.

• Cov Khoom Siv Kho Kom Zoo Calcium-Zinc (Ca-Zn)

Cov tshuaj stabilizers rau calcium-zinc (Ca-Zn)tau dhau los ua tus qauv kub rau cov khoom PVC sab nraum zoov, tshwj xeeb tshaj yog thaum muaj kev tswj hwm kev nyuaj siab tau tshem tawm cov tshuaj lom lwm yam. Cov tshuaj stabilizers tsis muaj hmoov txhuas, tsis muaj tshuaj lom no ua raws li cov qauv thoob ntiaj teb xws li REACH thiab RoHS, ua rau lawv haum rau cov khoom siv sab nraum zoov uas cov neeg siv khoom ntsib nrog rau cov ntaub pua plag kev lag luam. Dab tsi ua rau Ca-Zn stabilizers zoo tagnrho rau kev siv sab nraum zoov yog lawv lub peev xwm los tsim nrog cov khoom siv synergistic uas txhim kho kev tiv thaiv UV. Thaum ua ke nrog UV absorbers (xws li benzotriazoles lossis benzophenones) thiab hindered amine light stabilizers (HALS), Ca-Zn systems tsim kev tiv thaiv dav dav tiv thaiv ob qho tib si thermal thiab photo-degradation.

Rau cov tarpaulins PVC uas yoog tau thiab Canvas PVC, uas xav tau kev ywj pheej siab thiab tiv taus kev tawg, Ca-Zn stabilizers yog qhov tsim nyog tshwj xeeb vim tias lawv tsis ua rau cov khoom siv yas puas tsuaj. Tsis zoo li qee cov stabilizers uas tuaj yeem ua rau tawv dhau sijhawm, cov khoom sib xyaw Ca-Zn uas tau tsim kom zoo tswj tau PVC qhov yooj ywm txawm tias tom qab ntau xyoo ntawm kev raug sab nraum zoov. Lawv kuj muaj kev tiv thaiv zoo rau kev rho tawm dej - tseem ceeb rau cov khoom uas feem ntau ntub, xws li cov tarpaulins los nag. Qhov kev xav tseem ceeb nrog Ca-Zn stabilizers yog xyuas kom meej tias cov qauv tau tsim rau cov xwm txheej ua tiav tshwj xeeb; PVC yoog tau rau tarpaulins feem ntau yog ua tiav ntawm qhov kub qis dua (140–170 ° C) dua li PVC tawv, thiab cov stabilizer yuav tsum tau ua kom zoo rau qhov ntau no kom tsis txhob muaj phaj tawm lossis qhov tsis zoo ntawm qhov chaw.

• Cov Khoom Siv Organotin Stabilizers

Cov tshuaj stabilizers ntawm Organotinyog lwm txoj kev xaiv, tshwj xeeb tshaj yog rau cov khoom lag luam sab nraum zoov uas xav tau qhov meej meej lossis tiv taus rau qhov xwm txheej hnyav. Cov stabilizers no muab kev ruaj khov thermal zoo dua thiab kev hloov pauv qis, ua rau lawv haum rau cov tarpaulins pob tshab lossis semi-pob tshab (zoo li cov siv rau cov tsev cog khoom) qhov twg qhov meej yog qhov tseem ceeb. Lawv kuj muab kev ruaj khov UV zoo thaum ua ke nrog cov khoom ntxiv tsim nyog, txawm hais tias lawv cov kev ua tau zoo hauv thaj chaw no feem ntau phim los ntawm cov qauv Ca-Zn siab heev. Qhov tsis zoo tseem ceeb ntawm organotin stabilizers yog lawv tus nqi - lawv kim dua li lwm txoj hauv kev Ca-Zn, uas txwv lawv siv rau cov ntawv thov muaj nqis siab dua li cov khoom lag luam tarpaulins lossis Canvas PVC khoom.

• Cov Khoom Siv Barium-Cadmium (Ba-Cd) Stabilizers

Cov tshuaj stabilizers Barium-Cadmium (Ba-Cd) ib zaug tau siv ntau hauv cov ntawv thov PVC uas yoog tau, suav nrog cov khoom siv sab nraum zoov, vim lawv qhov kev ruaj khov zoo heev ntawm cua sov thiab UV. Txawm li cas los xij, lawv siv tau poob qis vim muaj kev txhawj xeeb txog ib puag ncig thiab kev noj qab haus huv - cadmium yog cov hlau hnyav lom uas txwv los ntawm cov cai thoob ntiaj teb. Niaj hnub no, cov tshuaj stabilizers Ba-Cd feem ntau tsis siv rau feem ntau cov khoom siv PVC sab nraum zoov, tshwj xeeb tshaj yog cov uas muag hauv EU, North America, thiab lwm yam kev lag luam uas raug tswj hwm. Tsuas yog hauv cov cheeb tsam tsis raug tswj hwm lossis cov ntawv thov tshwj xeeb xwb lawv tseem yuav siv tau, tab sis lawv cov kev pheej hmoo ntau dua li lawv cov txiaj ntsig rau feem ntau cov chaw tsim khoom.

Cov Lus Sib Piv ntawm Cov Khoom Siv PVC Stabilizers

Cov Kev Xav Tseem Ceeb rau Kev Xaiv Cov Khoom Siv PVC Stabilizers

Thaum xaiv ib qhoPVC stabilizerrau tarpaulin, Canvas PVC, lossis lwm yam khoom siv sab nraum zoov, muaj ntau yam tseem ceeb uas yuav tsum xav txog dhau ntawm hom stabilizer.

• Kev Ua Raws Cai

Ua ntej tshaj plaws yog kev ua raws li txoj cai. Yog tias koj cov khoom muag hauv EU, North America, lossis lwm lub khw loj, cov kev xaiv uas tsis muaj lead thiab cadmium xws li Ca-Zn lossis organotin yog qhov yuav tsum tau ua. Kev tsis ua raws li txoj cai tuaj yeem ua rau raug nplua, raug hu rov qab cov khoom, thiab ua rau lub koob npe puas tsuaj - cov nqi uas ntau dua li kev txuag nyiaj luv luv los ntawm kev siv cov tshuaj stabilizers qub.

• Cov Xwm Txheej Ib puag ncig ntawm Lub Hom Phiaj

Tom ntej no yog cov xwm txheej ib puag ncig tshwj xeeb uas cov khoom yuav ntsib. Ib daim ntaub tarpaulin siv rau hauv huab cua suab puam, qhov twg UV hluav taws xob muaj zog thiab kub nce siab, xav tau pob khoom UV stabilizer muaj zog dua li ib qho siv rau hauv thaj chaw sov thiab huab cua. Ib yam li ntawd, cov khoom raug dej ntsev (xws li marine tarpaulins) xav tau cov stabilizers uas tiv taus xeb thiab rho tawm ntsev. Cov chaw tsim khoom yuav tsum ua haujlwm nrog lawv tus neeg muag khoom stabilizer los kho cov mis rau qhov chaw ib puag ncig - qhov no yuav suav nrog kev kho qhov sib piv ntawm UV absorbers rau HALS lossis ntxiv cov antioxidants ntxiv los tawm tsam kev puas tsuaj oxidative.

• Kev Khaws Cia Yooj Yim

Kev khaws cia qhov yooj ywm yog lwm yam uas tsis tuaj yeem sib tham tau rau cov tarpaulins thiab Canvas PVC. Cov khoom no vam khom qhov yooj ywm kom tau draped, folded, thiab ncab yam tsis muaj kev rhuav. Lub stabilizer yuav tsum ua haujlwm sib haum xeeb nrog cov plasticizers hauv PVC formulation kom tswj tau qhov yooj ywm no dhau sijhawm. Ca-Zn stabilizers zoo tshwj xeeb ntawm no vim tias lawv muaj kev sib cuam tshuam tsawg nrog cov plasticizers siv hauv PVC sab nraum zoov, xws li lwm txoj hauv kev tsis muaj phthalate xws li dioctyl terephthalate (DOTP) lossis epoxidized soybean oil (ESBO). Qhov kev sib raug zoo no ua kom ntseeg tau tias cov plasticizer tsis raug leached tawm lossis degraded, uas yuav ua rau stiffening ua ntej lub sijhawm.

• Cov Cai Ua Haujlwm

Cov xwm txheej ua haujlwm kuj tseem ceeb rau kev xaiv cov stabilizer. Cov tarpaulins thiab Canvas PVC feem ntau yog tsim los ntawm kev siv cov txheej txheem calendering lossis extrusion-txheej txheem, uas cuam tshuam nrog kev ua kom sov PVC rau qhov kub ntawm 140–170 ° C. Lub stabilizer yuav tsum muab kev tiv thaiv thermal txaus thaum lub sijhawm no kom tiv thaiv kev puas tsuaj ua ntej cov khoom tawm hauv lub Hoobkas. Kev ruaj khov ntau dhau tuaj yeem ua rau muaj teeb meem xws li phaj tawm (qhov twg cov stabilizer deposits tsim rau ntawm cov khoom siv ua haujlwm) lossis txo cov dej ntws yaj, thaum kev ruaj khov tsis txaus ua rau cov khoom tsis muaj xim lossis tawg. Nrhiav qhov sib npaug zoo yuav tsum tau sim lub stabilizer hauv cov xwm txheej ua haujlwm tseeb siv rau kev tsim khoom.

• Kev Siv Nyiaj Zoo

Tus nqi yeej ib txwm yog qhov yuav tsum xav txog, tab sis nws yog ib qho tseem ceeb uas yuav tsum saib mus ntev. Txawm hais tias Ca-Zn stabilizers yuav muaj tus nqi siab dua me ntsis dua li cov Ba-Cd systems uas tsis siv lawm, lawv txoj kev ua raws li cov cai thiab lub peev xwm los txuas lub neej khoom kom ntev dua txo tus nqi tag nrho ntawm kev muaj. Piv txwv li, ib daim tarpaulin uas ruaj khov zoo yuav kav ntev li 5-10 xyoo, thaum ib daim uas tsis ruaj khov yuav tsis ua haujlwm hauv 1-2 xyoos - ua rau muaj kev hloov pauv ntau zaus thiab cov neeg siv khoom tsis txaus siab. Kev nqis peev rau hauv ib daim Ca-Zn stabilizer zoo nrog lub pob UV uas ua raws li tus qauv yog qhov kev xaiv pheej yig rau cov tuam txhab tsim khoom uas tab tom nrhiav kev tsim lub koob npe nrov rau kev ruaj khov.

Cov Piv Txwv Txog Kev Tsim Qauv

• Cov Khoom Siv PVC Hnyav Rau Cov Chaw Tsim Kho

Yuav kom piav qhia txog cov kev xav no ua ke li cas hauv kev xyaum, cia peb saib ib qho piv txwv tiag tiag: tsim cov ntaub thaiv PVC hnyav rau kev siv hauv chaw tsim kho. Cov ntaub thaiv kev tsim kho yuav tsum tiv taus lub teeb UV hnyav, nag hnyav, cua, thiab kev sib txhuam. Ib qho kev tsim kho ib txwm muaj xws li: 100 qhov ntawm qhov hnyav (phr) cov khoom siv PVC yooj ywm, 50 phr phthalate-free plasticizer (DOTP), 3.0–3.5 phr Ca-Zn stabilizer sib xyaw (nrog rau cov khoom nqus UV thiab HALS), 2.0 phr antioxidant, 5 phr titanium dioxide (rau kev tiv thaiv UV ntxiv thiab opacity), thiab 1.0 phr roj nplua nyeem. Ca-Zn stabilizer sib xyaw yog lub hauv paus ntawm cov qauv no - nws cov khoom tseem ceeb neutralize hydrogen chloride thaum lub sijhawm ua tiav, thaum cov khoom nqus UV thaiv cov teeb meem UV thiab HALS scavenge cov dawb radicals tsim los ntawm photo-oxidation.

Thaum lub sijhawm ua cov txheej txheem los ntawm kev calendering, cov khoom sib xyaw PVC raug cua sov rau 150–160 ° C. Lub stabilizer tiv thaiv kev hloov pauv thiab kev puas tsuaj ntawm qhov kub no, ua kom ntseeg tau tias muaj cov yeeb yaj kiab zoo thiab ruaj khov. Tom qab tsim khoom, lub tarpaulin raug kuaj xyuas rau kev tiv thaiv UV siv cov kev sim huab cua ceev (xws li ASTM G154), uas sim ua 5 xyoos ntawm kev raug sab nraum zoov hauv ob peb lub lis piam xwb. Lub tarpaulin zoo uas muaj Ca-Zn stabilizer zoo yuav khaws tau ntau dua 80% ntawm nws lub zog tensile thiab kev ywj pheej tom qab cov kev sim no, txhais tau tias nws tuaj yeem sawv ntsug txog ntau xyoo ntawm kev siv hauv qhov chaw tsim kho.

• Canvas PVC rau Sab Nraum Zoov Awnings thiab Canopies

Lwm qhov piv txwv yog Canvas PVC siv rau sab nraum zoov awnings thiab canopies. Cov khoom no xav tau qhov sib npaug ntawm kev ruaj khov thiab kev zoo nkauj - lawv yuav tsum tiv taus kev puas tsuaj UV thaum tswj lawv cov xim thiab cov duab. Cov mis rau Canvas PVC feem ntau suav nrog qib siab dua ntawm cov xim (rau kev khaws xim) thiab pob Ca-Zn stabilizer optimized rau UV tiv taus. Lub stabilizer ua haujlwm nrog cov xim los thaiv UV hluav taws xob, tiv thaiv ob qho tib si daj thiab xim ploj. Tsis tas li ntawd, lub stabilizer sib xws nrog cov plasticizer ua kom Canvas PVC tseem yoog tau, tso cai rau lub awning kom dov thiab nqis ntau zaus yam tsis muaj kev tawg.

Cov Lus Nug Feem Ntau

Q1: Vim li cas PVC stabilizers thiaj li tseem ceeb rau cov khoom PVC sab nraum zoov?

A1: Cov khoom PVC sab nraum zoov ntsib teeb meem UV, kev hloov pauv kub, dej noo, thiab kev puas tsuaj, uas ua rau PVC puas tsuaj sai dua (piv txwv li, daj, brittleness). PVC stabilizers neutralize hydrogen chloride, tiv thaiv kev puas tsuaj kub / duab, tswj kev ywj pheej, thiab tiv thaiv kev rho tawm, ua kom cov khoom ua tau raws li 5-10 xyoo ntawm kev pabcuam lub neej.

Q2: Hom stabilizer twg zoo tshaj plaws rau feem ntau cov khoom PVC sab nraum zoov?

A2: Cov tshuaj Calcium-Zinc (Ca-Zn) stabilizers yog tus qauv kub. Lawv tsis muaj lead, REACH/RoHS ua raws li txoj cai, khaws cia kev ywj pheej, muab kev tiv thaiv UV zoo heev nrog cov synergists, thiab pheej yig, ua rau lawv zoo tagnrho rau tarpaulins, Canvas PVC, awnings, thiab cov khoom siv pw hav zoov.

Q3: Yuav tsum xaiv cov organotin stabilizers thaum twg?

A3: Cov tshuaj stabilizers Organotin yog qhov tsim nyog rau cov khoom lag luam sab nraum zoov uas xav tau kev pom tseeb tshwj xeeb (piv txwv li, cov ntaub pua tsev cog khoom) lossis kev tiv thaiv rau cov xwm txheej hnyav. Txawm li cas los xij, lawv cov nqi siab siv rau cov ntawv thov muaj nqis siab.

Q4: Vim li cas cov stabilizers Ba-Cd tsis tshua siv tam sim no?

A4: Cov stabilizers Ba-Cd yog cov tshuaj lom (cadmium yog cov hlau hnyav txwv) thiab tsis ua raws li EU / NA cov cai. Lawv cov kev pheej hmoo ib puag ncig thiab kev noj qab haus huv ntau dua li lawv qhov kev ruaj khov thermal / UV zoo heev, ua rau lawv tsis siv rau feem ntau ntawm cov ntawv thov.

Q5: Yuav tsum xav txog dab tsi thaum xaiv lub stabilizer?

A5: Cov yam tseem ceeb suav nrog kev ua raws li txoj cai (yuav tsum muaj rau cov lag luam loj), cov xwm txheej ib puag ncig (piv txwv li, qhov muaj zog UV, kev raug dej ntsev), kev khaws cia qhov yooj ywm, kev sib raug zoo nrog cov xwm txheej ua tiav (140–170 ° C rau tarpaulins / Canvas PVC), thiab kev siv nyiaj mus sij hawm ntev.

Q6: Yuav ua li cas kom paub tseeb tias lub stabilizer ua haujlwm rau cov khoom tshwj xeeb?

A6: Ua haujlwm nrog cov neeg muag khoom los kho cov qauv, sim nyob rau hauv huab cua nrawm (piv txwv li, ASTM G154), ua kom zoo dua cov txheej txheem ua haujlwm, thiab txheeb xyuas kev ua raws li txoj cai. Cov neeg muag khoom muaj koob npe muab kev txhawb nqa kev siv tshuab thiab cov ntaub ntawv sim huab cua.