Kuchepetsa mtengo, kuchepetsa kuchepa, kuchedwa kwamoto kwambiri… Ubwino wa zida zodzazira za fiberglass zimapitilira izi

1. Ntchito yodzaza zida

Onjezani zodzaza monga calcium carbonate, dongo, aluminium hydroxide, magalasi agalasi, ma microbeads agalasi, ndi lithopone ku utomoni wa polyester ndikubalalitsa kuti apange utomoni wosakaniza.Ntchito yake ndi motere:
(1) Kuchepetsa mtengo wa zipangizo za FRP (monga calcium carbonate ndi dongo);
(2) Chepetsani kuchiritsa shrinkage mlingo kuteteza ming'alu ndi mapindikidwe chifukwa shrinkage (monga calcium carbonate, quartz ufa, galasi microspheres, etc.);
(3) Sinthani kukhuthala kwa utomoni pakuumba ndikupewa kudontha kwa utomoni.Komabe, tisaiwale kuti kuchulukirachulukira mamasukidwe akayendedwe nthawi zina kukhala kuipa;
(4) Kusawonekera kwa zinthu zopangidwa (monga calcium carbonate ndi dongo);
(5) Whitening zopangidwa zopangidwa (monga barium sulfate ndi lithopone);
(6) Sinthani kukana dzimbiri kwa zinthu zopangidwa (mica, mapepala agalasi, etc.);
(7) Kupititsa patsogolo kukana kwamoto kwa zinthu zopangidwa (aluminium hydroxide, antimony trioxide, chlorinated paraffin);
(8) Kupititsa patsogolo kuuma ndi kuuma kwa zinthu zopangidwa (monga calcium carbonate, galasi microspheres, etc.);
(9) Kupititsa patsogolo mphamvu ya zinthu zopangidwa (galasi ufa, potassium titanate fibers, etc.);
(10) Sinthani zopepuka komanso zotchinjiriza za zinthu zopangidwa (zosiyanasiyana ma microspheres);
(11) Perekani kapena kuonjezera thixotropy wa utomoni zosakaniza (monga ultrafine anhydrous silica, galasi ufa, etc.).
Zitha kuwoneka kuti cholinga chowonjezera zodzaza ku resin ndizosiyanasiyana, chifukwa chake ndikofunikira kusankha zodzaza zoyenera malinga ndi zolinga zosiyanasiyana kuti mugwiritse ntchito bwino ntchito ya zodzaza.

2. Kusamala posankha ndi kugwiritsa ntchito zodzaza

Pali mitundu yosiyanasiyana ya fillers.Chifukwa chake, ndikofunikira kusankha mtundu woyenera wa filler ndi kalasi kuti mugwiritse ntchito, zomwe zimapita popanda kunena.Njira zodzitetezera posankha zodzaza sikungosankha mitundu yosiyanasiyana ndi mtengo wokonzedweratu ndi magwiridwe antchito, komanso kulabadira mfundo zotsatirazi:
(1) Kuchuluka kwa utomoni wotengedwa kuyenera kukhala kocheperako.Kuchuluka kwa utomoni wotengedwa kumakhudza kwambiri kukhuthala kwa utomoni wosakanikirana.
(2) The mamasukidwe akayendedwe a utomoni osakaniza ayenera kukhala oyenera akamaumba ntchito.Zosintha zingapo pamawonekedwe osakanikirana a utomoni zitha kupangidwa ndikuchepetsa ndi styrene, koma kuwonjezera zodzaza zambiri ndikuchepetsa ndi styrene kumabweretsa kuchepa kwa magwiridwe antchito a FRP.Kukhuthala kwa zosakaniza za utomoni nthawi zina kumakhudzidwa kwambiri ndi kuchuluka kwa kusakanikirana, mikhalidwe yosakanikirana, kapena kuwonjezeredwa kwa zosintha zapamadzi.
(3) Makhalidwe ochiritsira a utomoni osakaniza ayenera kukhala oyenera kuumba.Makhalidwe ochiritsa a zosakaniza za utomoni nthawi zina amakhudzidwa ndi chodzaza chokha kapena chinyontho chosakanikirana kapena chosakanikirana ndi zinthu zakunja muzodzaza.
(4) Kusakaniza kwa utomoni kuyenera kukhala kokhazikika kwa nthawi inayake.Kwa chodabwitsa cha kukhazikitsa ndi kulekanitsa fillers chifukwa kuyimirira, nthawi zina kupewedwa ndi endowing utomoni ndi thixotropy.Nthawi zina, njira yopewera kugwedezeka kosasunthika komanso kosalekeza kumagwiritsidwanso ntchito poletsa kukhazikika kwa zodzaza, koma pakadali pano, ndikofunikira kuganizira kupewa kukhazikika ndi kudzikundikira kwa ma fillers mu payipi kuchokera ku chidebe chokhala ndi chosakanizira mpaka kupanga. malo.Pamene zodzaza ma microbead zimakonda kupatukana m'mwamba, ndikofunikira kutsimikiziranso kalasiyo.
(5) Kuthekera kwa kusakaniza kwa utomoni kuyenera kukhala koyenera pamlingo waukadaulo wa woyendetsa.Kuphatikizika kwa zodzaza nthawi zambiri kumachepetsa kuwonekera kwa utomoni wosakanikirana komanso kumachepetsa kudumpha kwa utomoni pakuyika.Chifukwa chake, kuyimba, kutulutsa thovu, komanso kuweruza pakuwumba kwakhala kovuta.Izi ziyenera kuganiziridwa kuti zitsimikizire chiŵerengero cha kusakaniza kwa utomoni.
(6) Chisamaliro chiyenera kuperekedwa ku mphamvu yokoka ya utomoni wosakaniza.Mukamagwiritsa ntchito zodzaza ngati zida zowonjezera kuti muchepetse mtengo wazinthu, mphamvu yokoka yakusakanikirana kwa utomoni imakwera poyerekeza ndi utomoni, nthawi zina osakwaniritsa mtengo womwe ukuyembekezeka kuchepetsa mtengo wazinthu.
(7) Zosintha zamtundu wa zodzaza ziyenera kufufuzidwa.Ma Filler surface modifiers ndi othandiza pochepetsa kukhuthala kwa zosakaniza za utomoni, ndipo zosintha zosiyanasiyana zapamtunda nthawi zina zimatha kuwonjezera mphamvu zamakina kuphatikiza kukana madzi, kukana nyengo, komanso kukana mankhwala.Palinso mitundu ya zodzaza zomwe zakhala zikugwiritsidwa ntchito pamwamba, ndipo ena amagwiritsa ntchito zomwe zimatchedwa "njira yonse yosakaniza" kuti asinthe pamwamba pa zodzaza.Ndiko kuti, posakaniza zosakaniza za utomoni, zodzaza ndi zosintha zimaphatikizidwa pamodzi ku utomoni, nthawi zina zotsatira zake zimakhala zabwino kwambiri.
(8) The defoaming mu utomoni osakaniza ayenera kuchitidwa bwinobwino.Zodzaza nthawi zambiri zimagwiritsidwa ntchito ngati tinthu tating'onoting'ono ndi tinthu tating'onoting'ono, tokhala ndi gawo lalikulu kwambiri.Nthawi yomweyo, palinso magawo ambiri pomwe ma micro powders ndi tinthu tating'onoting'ono timaphatikizana.Pofuna kumwaza zodzaza izi mu utomoni, utomoni umayenera kugwedezeka kwambiri, ndipo mpweya umakokedwa muzosakaniza.Kuphatikiza apo, mpweya umakokedwanso mumtundu waukulu wa fillers.Zotsatira zake, mpweya wochuluka wosayerekezeka unasakanizidwa mu osakaniza okonzedwa a utomoni, ndipo m'chigawo chino, FRP yomwe inapezedwa poipereka kuti iwumbidwe imakonda kutulutsa thovu ndi voids, nthawi zina kulephera kukwaniritsa zomwe zikuyembekezeka.Ngati sikungatheke kutulutsa thovu pongoyimirira mutasakaniza, kusefa kwa thumba la silika kapena kuchepetsa kupanikizika kungagwiritsidwe ntchito kuchotsa thovu.
Kuphatikiza pa mfundo zomwe tafotokozazi, njira zopewera fumbi ziyeneranso kuchitidwa pamalo ogwirira ntchito mukamagwiritsa ntchito zodzaza.Zinthu monga ultrafine particulate silica yopangidwa ndi silika yaulere, alumina, dziko lapansi la diatomaceous, miyala yachisanu, ndi zina zotero zimatchulidwa ngati fumbi la Class I, pamene calcium carbonate, ufa wa galasi, magalasi a galasi, mica, etc.Palinso malamulo okhudza kuwongolera kwamafuta osiyanasiyana ang'onoang'ono mumlengalenga.Zipangizo zotulutsa utsi ziyenera kukhazikitsidwa ndipo zida zoteteza anthu ogwira ntchito ziyenera kugwiritsidwa ntchito mosamalitsa pogwira zodzaza ufa.