Ob lub ntsiab lus polyurethane sealant: txhais, tsim, hom thiab hom, yam ntxwv, khoom thiab nuances ntawm daim ntawv thov

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Nrog rau lub sij hawm ntev thiab zoo sealing ntawm seams thiab tawg, polyurethane ob-tivthaiv sealants tau pom lawv cov khoom siv dav. Lawv muaj qhov deformation siab thiab elasticity, yog li ntawd, lawv tuaj yeem siv los ua pob tw sealants hauv kev kho thiab kev tsim vaj tsev.

Kev piav qhia

Cov khoom siv muaj ntau yam, tab sis nws tsis tshua muaj nyob rau ntawm lub khw muag khoom dua li cov khoom sib xws. Qhov no yog vim qhov tseeb tias kev npaj cov khoom siv thiab nws daim ntawv thov yuav xav tau kev txawj ntse. Yog li ntawd, lub sealant no tsuas yog siv nyob rau hauv kev lag luam kev tsim kho.

Creation

Ob lub ntsiab lus polyurethane sealants muaj cov tshuaj txhuam nrog polyols thiab hardener. Nyob rau hauv ib lub xeev nyias, lawv khaws lub txee lub neej ntev, vim lawv tsis cuam tshuam los ntawm ib puag ncig sab nraud. Ob lub ntsiab lus muajib qho tseem ceeb kom zoo dua - muaj peev xwm siv tau ntawm qhov kub thiab txias. Qhov no yog vim qhov tseeb tias cov dej noo hauv huab cua tsis koom nrog hauv polymerization.

Cov khoom sib xyaw muab lub zog elastic thiab ruaj khov. Ob lub ntsiab lus polyurethane sealants muaj ib qho tsis zoo, uas yog qhov sib xyaw ntawm cov khoom sib xyaw ua ke nrog kev xav tau tso tawm sijhawm ntxiv. Polyurethane nplaum sib tov yuav tsum tau siv tam sim ntawd tom qab sib tov. Qhov zoo ntawm cov muaj pes tsawg leeg yuav nyob ntawm seb qhov proportions raug pom zoo li cas thaum sib tov.

hom tsiaj thiab hom

Ob lub ntsiab lus tuaj yeem faib ua raws li lub hom phiaj. Lawv tau sawv cev los ntawm kev sib tov rau kev siv sab hauv tsev thiab sab nraum zoov. Sealants kuj tau muab faib ua cov khoom siv uas yuav tsum tau siv nrog lossis tsis muaj kev vibration. Ntawm cov hom tseem ceeb, ib qho yuav tsum tau muab cov uas siv sab nraum zoov lossis hauv qab dej. Koj tseem tuaj yeem faib cov kev sib xyaw ua ke raws li cov khoom siv uas lawv xav tau. Nws tuaj yeem yog: ntoo, hlau, pob zeb, yas.

Basic nta

Polyurethane ob lub ntsiab lus sealants muaj cov khoom zoo thiab kev ua haujlwm zoo. Lawv muaj elasticity siab, uas feem ntau ncav cuag 100%. Cov ntaub ntawv zoo sib xws: cib, hlau, ntoo, yas, iav ceramics. Daim ntawv thov tuaj yeem ua tiav ntawm cov khoom siv yav dhau los. Cov sib tov muajsiab hnav tsis kam. Lawv raug cuam tshuam rau cov hluav taws xob ultraviolet ntev, kev ntxhov siab ntawm cov tshuab, cov av noo siab, nrog rau kev hloov pauv kub. Cov khoom muab cov dej tsis muaj dej thiab txhim khu kev sib khi rau lub sijhawm ntev.

Cov khoom sib xyaw muaj cov thixotropy siab, uas tau hais tawm hauv lub peev xwm ntawm cov khoom tawg hauv qab kev ua haujlwm, thiab so kom viscosity. Siv ib qho piv txwv, peb tuaj yeem xav txog kev tsim cov seam, qhov ntev ntawm 2 m. Nws qhov dav yog 2 cm, thiab nws qhov tob yog 1 cm. Qee hom sealant tau siv nyob rau hauv rooj plaub no. 20 feeb tom qab nws daim ntawv thov, nws yuav pom tau tias cov khoom tau ntog los ntawm sab saum toj ntawm lub seam. Qhov no qhia tau hais tias cov khoom muaj tsawg thixotropy.

Polyurethanes tuaj yeem khaws cov duab ntawm cov seams ntev txog 6 m. Lawv qhov tob tuaj yeem yog 1 cm lossis tsawg dua, tab sis qee qhov sib xyaw muaj peev xwm ntau dua. Lwm cov cuab yeej muaj txiaj ntsig zoo yog qhov tsawg kawg nkaus shrinkage tom qab ua tiav cov txheej txheem polymerization. Sealants yog ceev curing thiab tuaj yeem machined. Qhov no txhais tau tias lawv tuaj yeem raug sanded.

Thaum piv nrog silicone counterparts, polyurethane sib tov tuaj yeem pleev xim rau. Txawm li cas los xij, cov lus piav qhia tseem muaj qhov tsis zoo. Txawm hais tias lub sealant muaj zog adhesion rau ntau qhov chaw, muaj cov ntaub ntawv uas yuav tsum tau siv cov primer los yog primer kom adhesion. Qhov no muaj tseeb rau qee cov yas.

Polyurethane compounds yuav tsum tsis txhob siv rau ntawm qhov chaw ntub dej. Yog hais tias cov dej noo ntawm lub hauv paus yog ntau tshaj 10%, ces txaus adhesion tsis tuaj yeem ua tiav yam tsis muaj kev siv primers. Polyurethane sealants tsis tuaj yeem tiv taus qhov kub thiab txias ntawm -60 txog + 80 ˚С. Yog tias qhov kub siab tshaj + 100 ˚С, cov khoom pib tawg thiab poob nws qhov kev ua tau zoo.

"Oxyplast": daim ntawv thov nuances

Ob lub ntsiab lus polyurethane sealant "Oksiplast" yog siv rau kev sib khi cov pob qij txha ntawm cov qauv ua los ntawm cov pob zeb thiab pob zeb. Lub deformation yuav tsum tsis txhob ntau tshaj 25%. Cov khoom siv yog tsim rau kev sib khi qhov khoob, cov pob qij txha thiab cov kab nrib pleb, nrog rau kev kho cov pob zeb ua vaj tse.

Tsuas yog ua ntej ntxuav los ntawm cov av thiab hmoov av, nrog rau qhov chaw qhuav, nws yog ib qho tsim nyog yuav tsum tau siv 2K polyurethane sealant. Cov khoom siv ob lub ntsiab lus yuav tsum tau siv nyob rau hauv xws li ib txoj kev uas ib tug syringe los yog spatula koom nyob rau hauv kev ua hauj lwm. Mastic yog tsim nyob rau hauv 6 teev ntawm qhov kub ntawm 23 ˚С. Qhov ntsuas kub tuaj yeem txo qis, thaum lub sijhawm siv nce ntxiv, vim tias cov khoom xyaw maj mam vulcanizes, nws yuav siv tsis tau.

Kev sib tov ntawm qhov sib tov tsis tuaj yeem lees txais. Leveling yog ua nrog ib tug tshwj xeeb spatula los yog cov cuab yeej haum rau qhov no. Tsis txhob los nag ntawm cov khoom siv sealant tshiab. Tso cov ntaub qhwv yuav tsum tau siv los tswj cov thickness.

Tsim Oxyplast sealant

Qhov sib tov no yog grey lossis dawb thixotropic loj. Cov khoom siv polymer yog ob-polyurethane muaj pes tsawg leeg, uas tau txais nws cov khoom thaum lub caij txias txias tom qab sib xyaw cov khoom xyaw hauv qab ntawm cov dej noo ntawm huab cua.

Cov khoom ntim tau muab rau hauv lub thawv yas uas muaj cov tawv tawv. Lub sealant yog npaj los sib tov hauv qhov sib piv ntawm 6 mus rau 1 los ntawm qhov hnyav. Qhov hnyav tag nrho ntawm cov khoom siv yog 12 kg. Lub lauj kaub lub neej ntawm lub sealant yog ntau tshaj 5 teev nyob rau hauv tus qauv version. Qhov no muaj tseeb ntawm 23 ° C thiab 50% txheeb ze humidity. Nyob rau hauv lub caij ntuj no version, lub lauj kaub lub neej ntawm cov sib tov yog 3 teev los yog ntau tshaj ntawm tib kub thiab av noo. Lub sij hawm kho yuav txo tau yog tias qhov kub nce.

Kev piav qhia ntawm ob lub ntsiab lus sealant "TechnoNIKOL 2K"

Ob lub ntsiab lus polyurethane sealant "TechnoNIKOL" yog cim "2K". Nws yog siv rau sealing qhov khoob, interpanel pob qij txha thiab cov kab nrib pleb hauv kev kho thiab kev tsim kho ntawm txhua lub tsev thiab cov qauv rau kev lag luam thiab pej xeem lub hom phiaj. Tom qab cov khoom sib xyaw ua ke, cov tshuaj tua kab mob tshwm sim, uas ua rau kho. Tus nqi ntawm cov txheej txheem no nce nrog nce kub. Tom qab ntawd, lub sealant tau txais kev adhesion rau cov khoom siv hauv tsev.

Ob lub ntsiab lus polyurethane sealant "TechnoNIKOL 2K" muaj ntau yam kev ua haujlwm kub. Nws txawv ntawm -60 txog +70 ˚С. Cov khoom yog resistant rauUV tiv taus, elastic heev thiab tuaj yeem pleev xim nrog acrylic facade xim. Qhov chaw siv yog sealing:

• expansion joints;
• ntsug thiab oblique pob qij txha;
• tsim qauv;
• prefabricated thiab monolithic reinforced pob zeb.

Deformation ntawm seams tuaj yeem yog 25%. Qhov no ob lub ntsiab lus polyurethane sib khi sealant tuaj yeem siv rau hauv thaj chaw nyob, tab sis yuav tsum tsuas yog siv tom qab sib tov tau kho tas li.