Sealant: nws hom thiab siv

Adhesives thiab sealants, uas yog nyob rau hauv lub lag luam niaj hnub no yog tsis tshua muaj neeg thiab yog yus muaj los ntawm ib tug broad Scope ntawm daim ntawv thov.

Av nplaum - ib yam khoom uas yog siv los txuas rau ntaub ntawv sib txawv los ntawm ib tug txheej txheem ntawm adhesion ntawm lub nplaum zaj duab xis thiab ntau yam chaw. Nws yog ib tug sib tov los yog ib tug daws ib yam los yog hluavtaws hauv paus.

Nyob rau tshuaj qauv adhesives kuj yog sib txawv. Nyob rau hauv tas li ntawd, lawv cov dej num raws li lub taub hau ntawm cov kua los yog hmoov.

Los ntawm txoj kev ntawm tsevneeg, lawv tseem yog cov nram qab no: PVA, sib cuag, kub yaj adhesives yog cov uas ua rau ntawm lub molecular theem.

Tseem ceeb faib nce adhesives, sealants. Lawv yog siv nyob rau hauv lub rooj sib txoos ntawm Cheebtsam, ib tug ntau yam ntawm pab kiag li lawm, cov tshuab, cua tshuab, thiab lwm yam Nws yog ib tug nrov nplaum sealant "Caij" xa mus rau ib tug dej-resistant hom. Nws yog siv rau tsevneeg ib tug ntau yam ntawm tej chaw - ntoo, tawv, roj hmab, lub khob, ceramics, etc. (Tshwj tais, uas yog npaj mus ua hauj lwm cov khoom noj).

Nws yuav tsum tau muab sau tseg tias nplaum-sealant yog ua lub hauv paus ntawm polymers. Nyob rau hauv feem ntau, nws muaj polysulfide, thiab silicone rubbers. Lub ntsiab teb ntawm daim ntawv thov - sau ntau yam kev ncua thiab tej kab nrib pleb, raws li zoo raws li kev sib khi ntawm qhov rooj thiab qhov rai.

Raws li cov tshuaj nyob tus yeees ntawm cov nplaum-sealant yog ib tug acrylic, silicone thiab polyurethane. Acrylic nws hom yog siv los sau cov pob qij txha thiab tsis loj heev tej kab nrib pleb ntawm lub pob zeb los yog pob zeb ua chaw.

Nws yuav tsum tau muab sau tseg tias acrylic-raws li adhesives tsis muaj kuab tshuaj, yuav siv tau los muab me me tej kab nrib pleb thiab sab nraum thiab sab hauv lub thaj chaw. Lawv tsiag ntawv los ntawm zoo adhesion rau ua vaj tse, plaster, raws li zoo li ntoo thiab cib, muaj peev xwm rau 15 feeb mus rau daim ntawv ib zaj duab xis thiab khaws lawv lub zog ntawm ib tug kub ntawm -25 - +80 ° C. Nyob rau hauv tas li ntawd, xws li ib tug sealant muaj siab kuj mus UV rays thiab lub teeb yog thov ncaj qha los ntawm lub raj los yog los ntawm ib tug tshwj xeeb rab phom.

Roj hmab cov ntaub ntawv hom adhesives yog siv raws li insulators, uas pab kom teem lub qhov rais thav duab, qhov rooj thiab ntau yam hlau lug, nti tiv thaiv tiv thaiv cov allergic ntawm txawv teb chaws kom txhob tsw thiab dej. Nws yog ib nqi sau cia hais tias lub silicone nplaum sealant yog yus muaj los ntawm zoo adhesion rau iav, ntoo, tej hub thiab enamelled chaw. Nws twb tseem yus muaj los ntawm ib tug siab kuj rau siab kub thiab txawv huab cua tej yam kev mob. Tej adhesives yog muaj nyob rau hauv ntau xim los yog tsis muaj kob (pob tshab). Thaum ua ntawv thov nws yuav tsum tau nco ntsoov tias ua hauj lwm nto yuav tsum huv si, qhuav thiab degreased, thiab ua kom tiav solidification tshwm sim xwb thaum lub sij hawm ib hnub.

Polyurethane adhesives, sealants yog densified thiab nplaum loj uas yuav muaj ib tug zoo elasticity rau ib ntev lub sij hawm. Lawv yog siv rau cov kev sib khi tej khoom. Nws yuav tsum tau muab sau tseg tias adhesives raws li polyurethane lo lub ob chaw sai sai ua khoom raws li qhov kev sib cuag nrog dej, yuav loj nrog ib cov kua roj vanish lossis tshuaj. Ua ntej thov kev lawv yuav tau nqa tawm ib tug txheej txheem nto npaj (tu thiab degreasing).