Akamaumba pulasitiki kunyumba.

Mapulasitiki tsopano wamba kwambiri pa moyo wathu wa tsiku ndi tsiku. Pulasitiki chopangidwa zinthu zosiyanasiyana magalimoto, nyumba, zipangizo, ndi mipando, mbale ndi zina zambiri. Nthawi zambiri handyman pulasitiki kunyumba ntchito monga chuma yaiwisi kubala zosiyanasiyana zinthu zothandiza.

mapulasitiki onse kuti apange mankhwala banja, m'magulu awiri: thermoplastic ndi thermosetting.

Thermosets yodziwika ndi kuuma pazipita ndi plasticity osachepera kuti zimawathandiza kuti kusungunula kapena kufewetsa pamene usavutike.

Pamene usavutike wina thermoplastics kutentha, iwo kusungunula, koma ngati kutentha akutsikira anakhala olimba. Mundawu chimathandiza thermoplastics jekeseni akamaumba kunyumba ndi kupanga mfundo.

ndi zikuchokera mapulasitiki chiyani? Kodi pulasitiki pa nyumba?

pulasitiki amamwa akhoza kukonza m'njira zotsatirazi. Ayenera kukhala bwinobwino wosanganiza chabwino utuchi ndi magnesite mu chiŵerengero 2: 1, kutsanulira osakaniza njira ya 0,1% mankhwala enaake a mankhwala enaake ndi kusonkhezera kuti kupeza mkhalidwe pasty. Pofuna kupeza mfundo za pulasitiki amenewa ntchito njira yoyambirira - jekeseni akamaumba kunyumba mawonekedwe. Pa solidification, pulasitiki adzakhala ndithu mkulu mphamvu ndi kugwilizana wabwino mankhwala, ie, n'kosavuta kuti kubowola, anaona, kusamalira chida abrasive kapena wapamwamba.

N'zotheka kubala pulasitiki ayi. M'pofunika kusakaniza chabwino nkhuni fumbi ndi talc pansi chiŵerengero 5: 2 ndi kutsanulira guluu anazikonzeratu joiner a. Zomatira ayenera kugwirizana kwa kirimu wandiweyani. The osakaniza chinali chipwirikiti zofunika monga kupeza mkhalidwe pasty. Wololera kuti atchule osakaniza 2.1 mbali mwa misa kapena potashi alum, atetezedwe ndi nkhungu zachilengedwe kuyanika mafuta, amapereka chodziwa ductility. ngati n'koyenera, pulasitiki akhoza akuda. Kuti izi ziyenera kuwonjezeredwa zikuchokera mapulasitiki ndi aniline utoto anakhumba mtundu. Kuti mumve zambiri zokhudza njira kupanga - akuponya pulasitiki m'nyumba mawonekedwe. Kuonjezera mphamvu ya mapulasitiki mu osakaniza nthawi kupanga m'malo zomatira anatsanulira unakhuthala nitro kapena nitrocellulose lacquer. Tsatanetsatane ali anapanga mwa kuchita.

makhalidwe abwino ndi pulasitiki, wokonzeka zikuluzikulu zotsatirazi: pepala youma kulemera / youma kalipentala guluu / zabwino akupera choko / glycerol / Mowa / youma ocher, ali osokonezeka monga mbali mwa kulemera kwa 5/28/60 / 2.5 / 3, 5/1.

Ndi kwambiri wosweka kulemera wouma pepala ndi kutsanulira kuchepetsedwa zomatira joiner a. Pa dilution ayenera pang'onopang'ono kutumikiridwa glycerol, choko, ocher ndi mowa, komabe kuwasakaniza. Mbali osakaniza ichi ntchito ngati kuumba mapulasitiki mu kunyumba. mankhwala ndi wachikuda, ngati anawonjezera kuti chisakanizo cha aniline.

Phenol-formaldehyde mapulasitiki komanso si ovuta kuphika kunyumba. Tiyenera crystalline (phenol) hydroxybenzene kapena analogs ndi amadzimadzi njira ya 40% formalin. Loyesayesa karboliki asidi angathe m'malo phenol. M'pofunika kusakaniza crystalline phenol (20g) ndi formalin (30 g), kuwonjezera asidi kuikapo maganizo hydrochloric (30 madontho). M'malomwake, phenol angagwiritsidwe ntchito karboliki asidi (40ml). osakaniza ayenera zokha kutenthetsa ndi kuwiritsa, ndipo adzakhala kugwirizana kwa kunyezimira ndi viscous. Unyinji chifukwa kutsanulira mu nkhungu kwa mphindi 30 Kenako osakaniza anali mu mawonekedwe kumizidwa mu madzi otentha kwa mphindi 10-15. Ndiye inu mukhoza kuchotsa mankhwala kwa nkhungu. Choncho analandira utomoni - ndi thermosetting pulasitiki ndi pabuka mtundu, ndi kuuma ndi mphamvu. Kuyambira n'zotheka kuti apange zina ukunenedwa kuti akumane ndi akatundu kwambiri.