Eco-Friendly Silicone vs Polyurethane Sealant Qhov twg yog Greener?

Rau feem ntau ntawm cov ntawv thov, ib qhoCov Khoom Siv Silicone Uas Zoo Rau Ib Puag Ncigyog qhov kev xaiv ntsuab dua. Silicone qhov zoo ntawm ib puag ncig los ntawm nws cov keeb kwm xuab zeb thiab kev ruaj khov zoo dua. Polyurethane kev vam khom rau roj av ua rau nws muaj qhov chaw ib puag ncig loj dua. Ob qho tib si cov ntaub ntawv tuav cov feem tseem ceeb hauv kev lag luam kev tsim kho, ua qhov sib txawv no tseem ceeb rau kev tsim kho kom ruaj khov.

Kev ua lag luam thoob ntiaj teb rau ob qho tib si sealants yog loj heev thiab kwv yees tias yuav loj hlob, qhia txog lawv siv dav dav.

Kev xaiv cov khoom siv Silicone Sealant uas zoo rau ib puag ncig feem ntau txo cov kev cuam tshuam rau ib puag ncig mus sij hawm ntev.

Lub Neej Theem 1: Cov Khoom Siv Raw thiab Kev Tsim Khoom

 

Kev taug kev ib puag ncig ntawm cov sealant pib nrog nws cov khoom siv raw. Keeb kwm ntawm cov ntaub ntawv no tsim thawj qhov sib txawv loj ntawm silicone thiab polyurethane. Ib qho los ntawm cov ntsiab lus feem ntau hauv ntiaj teb, thaum lwm qhov nyob ntawm cov roj fossil finite.

Silicone: Los ntawm Cov Xuab Zeb Muaj Ntau

Cov khoom siv silicone sealantmuaj qhov zoo dua rau ib puag ncig ntawm theem raw khoom. Lawv lub hauv paus tseem ceeb yog silicon, ib qho khoom uas tau los ntawm silica, uas yog xuab zeb xwb. Lub ntiaj teb muaj xuab zeb ntau thiab ntau heev.

Cov txheej txheem tsim khoom hloov cov khoom siv raw no mus ua ib qho sealant ruaj khov.

· Ua ntej, cov chaw tsim khoom siv cua sov xuab zeb silica nrog cov pa roj carbon hauv lub cub tawg kom tsim tau cov hlau silicon.

Tom ntej no, cov hlau silicon no ua rau muaj kev cuam tshuam nrog methyl chloride los tsim cov chlorosilanes.

Thaum kawg, ib qho txheej txheem hu ua hydrolysis hloov cov chlorosilanes no mus rau hauv cov polymers siloxane kawg uas tsim cov pob txha caj qaum ntawm silicone sealant.

Cov txheej txheem no siv zog ntau. Txawm li cas los xij, nws qhov kev vam khom rau cov khoom siv roj av uas tsis yog fossil muab silicone pib muaj zog ua cov khoom siv ntsuab dua.

Polyurethane: Los ntawm roj Crude

Cov tshuaj nplaum polyurethane ua raws li txoj kev sib txawv heev. Lawv yog cov polymers hluavtaws uas tau los ntawm roj av nyoos, uas yog cov khoom siv uas tsis rov ua dua tshiab. Kev tsim cov polyurethane vam khom ob lub ntsiab tshuaj lom neeg: polyols thiab isocyanates. Ob qho tib si no yog cov khoom lag luam ntawm kev lag luam petrochemical.

Tag nrho lub neej ntawm polyurethane yog khi rau kev rho tawm, kev ua kom huv, thiab kev ua cov roj fossil. Qhov kev vam khom no tsim kom muaj qhov chaw ib puag ncig loj dua piv rau cov ntaub ntawv ua los ntawm xuab zeb.

Kev rho tawm thiab kev ua kom cov roj av nyoos muaj cov kev pheej hmoo ib puag ncig uas tau sau tseg zoo, suav nrog kev cuam tshuam rau qhov chaw nyob thiab cov pa roj av uas ua rau lub ntiaj teb sov. Qhov kev vam khom rau cov peev txheej tsawg no ua rau cov keeb kwm polyurethane tsis ruaj khov dua li cov silicone. Kev xaiv ntawm cov ntaub ntawv no ntawm theem tsim khoom yog kev xaiv ntawm kev muaj ntau thiab kev tsis txaus.

Lub Neej Theem 2: Kev Siv & Kev Kho: Kev Noj Qab Haus Huv thiab Kev Zoo ntawm Huab Cua

Qhov cuam tshuam ntawm cov sealant nthuav dav tshaj li nws cov khoom siv raw mus rau qhov zoo ntawm huab cua thiab kev noj qab haus huv ntawm cov neeg siv nws. Thaum lub sijhawm siv thiab kho, cov sealant tso tawm cov tshuaj lom neeg mus rau hauv huab cua. Hom thiab qhov ntau ntawm cov pa phem no tsim qhov sib txawv tseem ceeb ntawm silicone thiab polyurethane.

Qhov Zoo ntawm Silicone Low-VOC

Feem ntau cov khoom siv silicone sealant muaj txiaj ntsig zoo rau kev ua kom huab cua zoo hauv tsev thiab sab nraum zoov. Cov chaw tsim khoom tsim ntau cov silicones niaj hnub no kom muaj cov Volatile Organic Compounds (VOCs) tsawg heev. Cov tshuaj no tuaj yeem ua rau tib neeg muaj kev noj qab haus huv thiab ua rau muaj pa luam yeeb. Cov koom haum tswj hwm xws li South Coast Air Quality Management District (SCAQMD) teeb tsa cov qauv nruj rau cov pa phem no raws li cov cai xws li Txoj Cai 1168.

Muaj ntau yam khoom siv silicone zoo uas yooj yim ua tau raws li cov qauv no. Piv txwv li, cov sealants uas ua raws li cov qauv LEED v4.1 feem ntau muaj cov ntsiab lus VOC qis dua 50 grams ib liter (g/L). Qee cov khoom tshwj xeebcov khoom siv silicone sealanttxawm tias ua tiav qib qis dua 30 g / L. Kev xaiv cov khoom siv silicone sealant 100% qis-VOC txo qhov kev tso tawm ntawm cov tshuaj lom neeg, tsim kom muaj ib puag ncig muaj kev nyab xeeb dua rau ob tus neeg thov thiab cov neeg nyob hauv tsev.

Kev Pheej Hmoo ntawm Polyurethane's Isocyanate thiab VOC

Cov tshuaj polyurethane sealants muaj teeb meem kev noj qab haus huv ntau dua thaum siv. Lawv cov tshuaj lom neeg muaj xws li isocyanates, uas yog cov tshuaj ua rau ua pa thiab tawv nqaij rhiab heev. Cov koom haum kev noj qab haus huv xws li NIOSH thiab OSHA tau txheeb xyuas cov kev pheej hmoo loj uas cuam tshuam nrog cov tshuaj no.

Isocyanates yog ib qho ua rau mob hawb pob ua haujlwm thoob ntiaj teb. Kev raug tshuaj lom neeg no tuaj yeem ua rau khaus qhov muag, tawv nqaij, thiab txoj hlab pa heev.

Cov kev pheej hmoo rau kev noj qab haus huv los ntawm kev raug isocyanate tau sau tseg zoo:

· Kev ua pa yuav ua rau muaj teeb meem ua pa, xeev siab, thiab kua dej hauv lub ntsws.

· Kev kov daim tawv nqaij yuav ua rau mob dermatitis.

· Kev raug ntau zaus tuaj yeem ua rau muaj kev tsis haum tshuaj, qhov twg txawm tias qhov kev sib cuag me me xwb los ua rau muaj kev tsis haum tshuaj hnyav xws li mob hawb pob.

Txawm hais tias qee cov polyurethane sealants yog tsim nrog VOCs qis dua, qhov muaj isocyanates tseem yog qhov teeb meem tseem ceeb rau kev noj qab haus huv thiab kev nyab xeeb. Qhov kev pheej hmoo no ua rau muaj cua nkag thiab cov khoom siv tiv thaiv tus kheej (PPE) tseem ceeb heev thaum lub sijhawm siv, ntxiv ib txheej ntawm kev phom sij uas feem ntau tsis cuam tshuam nrog cov silicone sealants VOC qis.

Vim li cas cov khoom siv silicone uas zoo rau ib puag ncig feem ntau yeej qhov ruaj khov

Kev ruaj khov yog lub hauv paus tseem ceeb ntawm kev ruaj khov. Cov sealant uas kav ntev dua yuav tsum tau hloov tsawg dua, txuag cov peev txheej thiab txo cov khib nyiab dhau sijhawm. Hauv theem tseem ceeb no, cov yam ntxwv ntawm silicone muab rau nws qhov zoo dua.

Silicone: Tiv taus UV thiab Huab Cua Hnyav

Cov tshuaj nplaum silicone ua rau pom tias nws tiv taus tau tej yam kev ntxhov siab ntawm ib puag ncig, tshwj xeeb yog UV thiab kub heev. Qhov kev ruaj khov no yog los ntawm lawv cov tshuaj silicon-oxygen uas ruaj khov. Lub hnub ci tsis yooj yim rhuav tshem cov khoom no.

· Lub Neej Siv Tau Ntev: Cov silicones zoo tshaj plaws uas kho tau zoo tuaj yeem siv tau 20 xyoo lossis ntau dua hauv kev siv sab nraum zoov, txo qhov zaus ntawm kev kho thiab hloov pauv.

· Kev Ruaj Ntseg Kub: Cov roj hmab silicone txheem ua haujlwm tau zoo hauv qhov kub thiab txias ntau, feem ntau ntawm -60 ° C txog + 230 ° C (-76 ° F txog + 446 ° F). Nws tseem yoog tau thaum txias thiab ruaj khov thaum kub heev.

· Kev Ua Tau Zoo: Kev tshawb fawb txog kev tshawb fawb lees paub tias silicone muaj zog. Tom qab 1000 teev ntawm UV-A laus, roj hmab silicone khaws nws cov khoom siv kho tshuab zoo dua li ntau lwm cov polymers.

Qhov kev ua tau zoo no ua rau muaj kevCov Khoom Siv Silicone Uas Zoo Rau Ib Puag Ncigyog ib qho kev xaiv txhim khu kev qha rau kev tiv thaiv huab cua mus sij hawm ntev, txij li lub tsev facades mus txog rau qhov kaw qhov rais. Nws lub peev xwm nyiaj tau ntau xyoo ntawm lub hnub thiab huab cua ua rau nws txoj haujlwm ua cov khoom siv ntsuab dua.

Polyurethane: Muaj zog tab sis tsis yooj yim rau lub hnub

Cov tshuaj polyurethane sealant paub txog lawv lub zog rhuav thiab tiv taus kev sib txhuam. Lawv tsim kom muaj kev sib txuas ruaj khov thiab ruaj khov. Txawm li cas los xij, lub zog no los nrog qhov tsis yooj yim rau lub hnub. Cov organic chemical bonds hauv polyurethane yooj yim rau kev puas tsuaj UV.

Kev raug tshav ntuj ua rau muaj cov txheej txheem tshuaj lom neeg uas txiav cov urethane bonds. Qhov kev puas tsuaj no ua rau muaj cov teebmeem tsis zoo xws li daj, chalking, thiab tsim cov kab nrib pleb ntawm qhov chaw raws sijhawm.

Yuav kom tawm tsam qhov tsis muaj zog no, cov chaw tsim khoom yuav tsum ua kom cov polyurethane sealants muaj zog nrog cov khoom ntxiv tshwj xeeb.

Cov tshuaj UV stabilizers thiab absorbers raug sib xyaw rau hauv cov mis.

Cov tshuaj ntxiv no pab tiv thaiv cov polymer ntawm tshav ntuj.

Yog tsis muaj lawv, lub neej ua haujlwm ntawm cov sealant hauv kev siv sab nraum zoov yuav luv dua heev.

Txawm hais tias cov tshuaj ntxiv no txhim kho kev ua tau zoo, lawv qhia txog qhov tsis muaj zog tseem ceeb. Qhov xav tau kev tsim kom muaj kev tiv taus UV, es tsis yog muaj nws tus kheej, tso polyurethane ua qhov tsis zoo dua li silicone rau feem ntau ntawm cov ntawv thov raug tshav ntuj.

Lub Neej Theem 3: Kev Ua Tau Zoo thiab Lub Neej Ntev

Tus nqi tiag tiag ntawm cov sealant rau ib puag ncig yuav tshwm sim thaum lub sijhawm ua haujlwm ntawm nws. Cov khoom uas puas ua ntej lub sijhawm yuav ua rau muaj kev pov tseg ntau dua thiab siv ntau cov peev txheej los hloov. Yog li ntawd, kev siv tau ntev yog qhov ntsuas tseem ceeb ntawm kev ruaj khov.

Qhov Zoo ntawm Ib Puag Ncig Yog Muaj Tsawg Yam Hloov

Tsawg dua qhov hloov pauv ncaj qha txhais tau tias qhov cuam tshuam ib puag ncig me dua.Cov Khoom Siv Silicone Uas Zoo Rau Ib Puag Ncigua tau zoo heev hauv qhov no. Cov tshuaj nplaum silicone zoo tuaj yeem ua haujlwm tau 20 xyoo lossis ntau dua, txawm tias nyob rau hauv cov xwm txheej hnyav. Qhov kev ruaj khov tshwj xeeb no txo ​​qhov kev voj voog ntawm kev tshem tawm thiab rov siv dua. Txhua qhov kev hloov pauv uas tsis tau txhais tau tias cov tshuaj nplaum qub tsawg dua mus rau qhov chaw pov tseg thiab cov khoom siv raw thiab lub zog tsawg dua siv los tsim cov khoom tshiab.

Txoj kev xav mus sij hawm ntev no sib haum nrog cov kev coj ua txij nkawm uas ruaj khov. Kev nqis peev rau cov khoom siv ruaj khov txij thaum pib tiv thaiv kev kho thaum muaj xwm txheej ceev uas kim thiab siv peev txheej ntau tom qab.

Rau txhua duas las siv rau kev siv cov caulking zoo thiab kev teeb tsa los ntawm cov kws tshaj lij, cov tswv vaj tse tuaj yeem txuag tau kwv yees li $ 4-6 hauv cov nqi kho uas yuav tshwm sim hauv kaum xyoo tom ntej.

Kev xaiv cov sealant uas siv tau ntev yog kev nqis peev rau kev noj qab haus huv nyiaj txiag thiab kev noj qab haus huv ib puag ncig. Nws txo cov nuj nqis ua haujlwm mus sij hawm ntev thiab txuag cov peev txheej muaj nqis.

Thaum Polyurethane Toughness Yog Qhov Tsim Nyog

Txawm hais tias silicone muaj kev tiv taus huab cua zoo dua, polyurethane muab kev tawv tsis sib xws rau cov ntawv thov tshwj xeeb, uas nyuaj heev. Nws lub zog rhuav thiab kev tiv taus kev sib txhuam ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov pob qij txha kab rov tav uas muaj neeg coob. Hauv cov xwm txheej no, polyurethane lub zog ruaj khov ua rau nws qhov zoo tshaj plaws rau ib puag ncig.

Cov khoom siv polyurethane sealants yog tsim los rau cov cheeb tsam uas nyiaj dhau kev ntxhov siab tas li:

· Kev nthuav dav thiab tswj cov pob qij txha hauv cov plag tsev ua los ntawm cov pob zeb

· Pem teb rau khoom thiab Hoobkas

· Cov chaw nres tsheb thiab cov kev nkag mus rau hauv tsev

Siv cov sealant uas tsis ruaj khov hauv cov cheeb tsam uas muaj neeg coob coob no yuav ua rau puas sai, hloov ntau zaus, thiab pov tseg ntau dua. Rau cov kev siv tshwj xeeb no, polyurethane lub peev xwm los tiv taus kev puas tsuaj thiab kev nkag mus ua rau muaj kev siv tau ntev, ua rau nws yog qhov kev xaiv ruaj khov dua qhov twg qhov kev siv tshuab ua kom ruaj khov yog qhov yuav tsum tau ua.

Lub Neej Theem 4: Kev Pov Tseg Thaum Kawg Lub Neej

Theem kawg ntawm lub neej ntawm cov sealant yog nws pov tseg. Tsis yog silicone lossis polyurethane uas lwj tau, yog li lawv tus cwj pwm hauv qhov chaw pov tseg yog qhov tseem ceeb rau ib puag ncig. Lawv txoj kev ruaj khov tshuaj lom neeg thiab lub peev xwm rov ua dua tshiab tsim cov xwm txheej sib txawv thaum kawg ntawm lub neej.

Silicone hauv qhov chaw pov tseg

Cov tshuaj nplaum silicone tsis muaj zog hauv cov tshuaj lom neeg. Qhov kev ruaj khov no txhais tau tias lawv tsis tawg ua cov tshuaj lom lossis tso cov tshuaj lom rau hauv av thiab dej hauv av. Txawm li cas los xij, qhov kev ruaj khov no ua rau lawv nyob ruaj khov heev hauv ib puag ncig. Cov polymers silicone tuaj yeem siv sijhawm txij li 50 txog 500 xyoo kom lwj hauv qhov chaw pov tseg, ua rau muaj cov khib nyiab ntev.

Txawm hais tias cov khib nyiab silicone yog qhov ruaj khov, nws qhov xwm txheej inert ua rau nws muaj qhov tsis zoo nyob rau hauv qhov chaw pov tseg piv rau lwm cov yas.

Kev siv cov silicone uas siv lawm rov qab yog ib qho nyuaj tab sis nws tab tom loj hlob zuj zus. Cov kev daws teeb meem tshiab muab txoj hauv kev rau kev lag luam ncig ntau dua:

Cov tuam txhab tshwj xeeb thiab qee cov chaw tsim khoom tab tom pib sau cov khoom siv silicone tom qab siv.

Cov tshuab cais cov khoom siv robotic siab heev, zoo li ib qho hauv lub teb chaws Yelemees, tam sim no tuaj yeem txheeb xyuas thiab cais cov silicone cartridges ntawm cov khib nyiab yas sib xyaw.

· Kev tsim kho tshiab hauv kev tshuaj ntsuam thiab kev rhuav tshem cov khoom xws li iav rwb thaiv tsev lub hom phiaj yog kom rov qab tau silicone rau kev siv dua lossis rov ua dua tshiab.

Polyurethane hauv qhov chaw pov tseg

Polyurethane muaj kev pheej hmoo rau ib puag ncig ntau dua thaum nws lub neej kawg. Cov polymer networks uas muaj zog thiab sib txuas ua ke uas ua rau nws muaj zog kuj ua rau nws nyuaj heev rau kev siv dua los ntawm cov txheej txheem ib txwm muaj. Thaum polyurethane maj mam lwj hauv qhov chaw pov tseg, nws tuaj yeem tso cov tshuaj lom tawm. Kev tshawb fawb qhia tau hais tias qhov kev lwj no tuaj yeem tso cov tshuaj lom neeg ua ntej, suav nrog cov tshuaj carcinogen 2,4-diaminotoluene.

Qhov nyuaj ntawm kev siv dua tshiab feem ntau ua rau muaj kev siv dua tshiab, qhov twg cov khoom poob qhov zoo thiab tus nqi. Txawm li cas los xij, cov kws tshawb fawb tab tom tsim cov txheej txheem rov ua dua tshiab siab heev los daws qhov teeb meem no.

· Kev Siv Tshuaj Rov Qab: Cov txheej txheem xws li acidolysis tuaj yeem rhuav tshem polyurethane mus rau hauv nws cov monomers qub, tso cai rau lawv rov siv dua rau hauv cov khoom siv tshiab, zoo.

· Kev Siv Dua Thermochemical: Pyrolysis siv cua sov hauv ib puag ncig tsis muaj oxygen los hloov cov khib nyiab polyurethane mus rau hauv cov pa roj, kua, thiab cov khoom khov uas muaj txiaj ntsig.

Cov txheej txheem tshiab no muaj kev cia siab rau kev hloov pauv polyurethane los ntawm cov khoom siv "siv thiab pov tseg" mus rau hauv ib qho voj voog.

Rau feem ntau cov haujlwm, Eco Friendly Silicone Sealant yog qhov kev xaiv ntsuab dua. Nws keeb kwm los ntawm xuab zeb, cov pa phem VOC tsawg, thiab lub neej ntev tshwj xeeb ua rau nws tsis muaj kuab paug rau ib puag ncig. Lub neej ntev ntawm silicone ncaj qha txo cov khib nyiab mus sij hawm ntev thiab kev siv cov khoom siv, uas yog qhov tseem ceeb rau nws cov ntawv pov thawj ntsuab. Kev siv cov Eco Friendly Silicone Sealant uas muaj VOC tsawg kuj pab cov haujlwm tau txais cov qhab nia raws li cov ntawv pov thawj tsev ntsuab loj.

·LEED

·BREEAM

·Cov Ntiaj Teb Ntsuab

Rau qhov cuam tshuam me tshaj plaws rau ib puag ncig hauv kev sib khi dav dav, xaiv 100% VOC qissilicone sealantlos ntawm cov chaw tsim khoom loj xws li Dow, Sika, lossis Wacker

Cov Lus Nug Feem Ntau

Cov sealant twg zoo dua rau ib puag ncig?

SiliconeFeem ntau yog qhov kev xaiv ntsuab dua. Nws cov txiaj ntsig suav nrog keeb kwm los ntawm xuab zeb, cov pa phem VOC tsawg, thiab kev ruaj khov zoo dua. Lub neej ntev no txo ​​cov khib nyiab thiab qhov xav tau hloov pauv, txo nws cov kev cuam tshuam rau ib puag ncig piv rau polyurethane ua los ntawm roj av.

Puas yog polyurethane puas yog qhov kev xaiv ntsuab dua?

Yog, rau cov ntawv thov tshwj xeeb uas muaj neeg coob. Polyurethane lub zog tsis sib xws yog qhov zoo tagnrho rau cov plag tsev rau khoom lossis txoj kev nkag tsheb. Nws lub zog ruaj khov hauv cov chaw no tiv thaiv kev kho ntau zaus, ua rau nws yog qhov kev xaiv ruaj khov dua qhov twg xav tau kev tiv thaiv kev sib txhuam ntau heev.

 

Cov VOCs puas yog tib qho teeb meem kev noj qab haus huv nrog cov sealants?

Tsis yog, lwm yam tshuaj lom neeg muaj kev pheej hmoo. Cov tshuaj polyurethane sealants muaj cov isocyanates, uas paub tias yog cov tshuaj ua rau ua pa tsis taus. Cov tshuaj no tsim kev phom sij rau kev noj qab haus huv thaum lub sijhawm siv uas tsis muaj nrog feem ntau cov khoom silicone uas muaj VOC tsawg, ua rau silicone yog qhov kev xaiv zoo dua rau cov neeg siv.

Kuv puas siv tau cov raj xa dej qub rov qab tau?

Cov kev xaiv rov ua dua tshiab rau cov sealant siv lawm tseem tab tom tsim kho. Qee lub chaw tshwj xeeb thiab cov chaw tsim khoom tab tom pib txais cov silicone tom qab siv. Cov neeg siv yuav tsum sab laj nrog lawv lub koom haum tswj hwm pov tseg hauv zos kom paub txog cov lus qhia pov tseg tshiab tshaj plaws hauv lawv cheeb tsam.