Kodi kupasuka kwa epoxy utomoni? Kugwira ntchito ndi epoxy utomoni

Mawu "epoxy" amadziwika kuti pafupifupi aliyense. Koma epoxy utomoni, amene ntchito ndi zachilendo lero, ndi ngati utomoni kupanga. Zikuoneka mu 50s lapansi. zana zapitazo ndipo posachedwapa zinatchuka kuyamika katundu mosalekeza.

Lero, epoxy resins ntchito yopanga mafakitale ndi banja. ofunsira zotheka mowirikiza kuwonjezera chifukwa cha chitukuko cha formulations ndi makhalidwe bwino.

Kufotokozera epoxy

Malinga ndi mipweya ya epoxy utomoni - ndi kupanga pawiri oligomeric. zinthuzi mu ankafuna pafupifupi muzochitika za mafakitale. The ufulu mawonekedwe epoxy ntchito, koma molumikizana ndi wothandizila akuchiritsa izo angasonyeze wapadera katundu pambuyo polymerization anachita. Ngati wothandizila epoxy utomoni akuchiritsa kugwirizana ndi, zikhoza kuchitika:

• zovuta, olimba zipangizo;
• Ofewa ndi cholimba malonda;
• mphira ngati zipangizo.

Epoxy resins ndi kugonjetsedwa ndi zinthu zotsatirazi:

• halogens;
• asidi;
• alkalis.

Komabe, nchito yanyumba amapezeka esters ndi acetone popanda mapangidwe filimu. Pambuyo kuchiritsa epoxy utomoni zikuchokera si zimatulutsa volatiles ake ndi shrinkage ndi negligible.

Makamaka epoxy kuswana utomoni

Ngati inu mukudabwa za mmene kupasuka kwa epoxy, muyenera kudziwa kuti kusowa kapena owonjezera kuchiritsa wothandizila mu zikuchokera akhoza kusokoneza mtundu wa polima, pamene otsala kugonjetsedwa ndi kutentha, koma mphamvu yake yafupika, luso kutsutsa mankhwala ndi madzi ali opulumutsidwa . Ngati hardener anawonjezera ndalama zochepa, nkhani ingakhale yomata chifukwa cha utomoni unbound.

Pamaso kuchepetsa ndi epoxy utomoni, m'pofunika kudziwa kuti owonjezera ufulu hardener adzamasulidwa ku padziko polima pa ntchito. Kwa mankhwala osiyana curable chigawo ndi utomoni ntchito kufanana osiyana, izi zikhoza kupezeka mu bukhuli. Pankhani mankhwala amakono, chiŵerengero ndi zambiri motere: 1 2 kapena 1: 1.

Malangizo kwa kuswana kwa epoxy utomoni

Chibwenzi, akukhulupirira kuti pamene ntchito hardener mu buku kuposa ponseponse anachita polymerization amapezeka mofulumira. Mfundo imeneyi tinganene kuti asocheretse. Chophweka njira kufulumizitsa ndondomekoyi ndi kuonjezera kutentha kwa osakaniza anachita.

Ngati mukufuna mofulumira ndi nthawi ndondomeko zitatu, kutentha ayenera ziwonjezeke kwa 10 ° C. Ngati inu mungakweze funso mmene kupasuka kwa epoxy, muyenera kudziwa kuti lero amadziwika mankhwala zapaderazi, omwe nyimbo zili accelerators yochiritsa. Angapezeke pa mankhwala zogulitsa, ndi epoxy kuti alimbitse pa kutentha otsika. Lembani kuchiritsa wothandizila ndi kutentha kwa osakaniza kuchita zinthu ngati zinthu zazikulu zimene zimakhudza mlingo wa polymerization.

Sitadi epoxy utomoni: nyimbo ndi osiyana polymerization kutentha

The utomoni epoxy akhoza kuchiritsidwa pa kutentha kuyambira -10 kuti +200 ° C, izo zimadalira zosiyanasiyana ntchito zikuchokera. Chibwenzi, wodziwika resins kwa otentha ndi ozizira yochiritsa. Cold mtundu hardener ndi epoxy utomoni kaŵirikaŵiri ntchito tsiku ndi tsiku. Kukumana ngati zikuchokera akhoza kukhala mu zikhalidwe za kupanga ndi mphamvu otsika, ndi pamene kutentha mankhwala ndi zosayenela.

Kupeza mphamvu mankhwala mkulu mudzakhoze kupirirako katundu mkulu ndi kutentha, komanso kukhudzana ndi mankhwala, ntchito otentha akuchiritsa mtundu chigawo. wandiweyani mauna mamolekyulu inakhazikitsidwa m'zaka polymerization otentha. Komanso, pali nyimbo ndi oxides awo okhoza polymerize mu madzi nyanja ndi zinthu chinyezi.

dera ntchito

Epoxy zipangizo anagawira lero padziko lonse amadziwika kuyambira pakati pa zaka zana lomaliza. Chikhalidwe cha ntchito zinthuzi zisakuyenda lasintha kwambiri, koma ntchito ndi chikhalidwe m'madera angapo, pakati pawo:

• impregnated galasi CHIKWANGWANI ndi CHIKWANGWANI galasi;
• ❖ kuyanika kwa kumatira;
• chilengedwe cha mankhwala zosagwira zokutira;
• kupanga zinthu zowonekera olimba mankhwala fiberglass.

Epoxy utomoni, ntchito imene tsopano zachilendo, akhoza kuchita ngati wothandizira impregnating kwa zigawo kulumikiza mu magetsi, magalimoto, minda ndege, zamagetsi ndi mafakitale. Pankhaniyi, zikuchokera ntchito yopanga fiberglass mu luso lopanga ndi shipbuilding zomangira zinthu kukonza msonkhano zinthu galimoto thupi ndi bwato hulls.

Kugwira ntchito ndi epoxy utomoni ikuchitika kumene kufunika kwa chisindikizo malinga ndi simenti wa zapansi ndi maiwe. Angazigwiritse ntchito yopangidwa ndi zisulo epoxy utomoni ndi utoto kwa kunja ndi mkati ulemerero wa nyumba, komanso impregnation, amene adzapereka kumatira zipangizo porous ndi mphamvu zawo kuchuluka, iwo ayenera allocated mwa matabwa ndi konkire.

chifukwa umboni wa

The epoxy utomoni akhoza kupanga maziko a zinthu zowonekera olimba, amene anachita mwa kuchita mu nkhungu. Mu siteji yotsatira ya mankhwala kukonzedwa ndi njira makina, monga: akupera ndi kudula. Ntchito mankhwala fiberglass ntchito kapangidwe ndi zamagetsi makampani, zomangamanga ndi banja.

Kugwira ntchito ndi epoxy: kukonzekera pamwamba

Kugwira ntchito ndi epoxy kumafuna kufunika kukonzekera pamwamba asanayambe ntchito zikuchokera. Only ndiye adzatha kukwaniritsa mkulu guluu wolimba kwambiri. Choncho, asanayambe kupasuka kwa epoxy utomoni, choyamba kukonzekera pamwamba. Kuyamba m'munsi degreasing. Padziko sayenera kuda mafuta ndi mafuta. pamwamba ndi kutsukidwa ntchito zosungunulira kapena detergent ogwira. Nkofunika kuti atsimikizire pakalibe gloss.

Wosanjikiza chapamwamba adachotsedwa ndi akupera. kali Small muyenera kukhala okonzeka ndi dzanja, ntchito sandpaper kuti akhale ichi. Yadzaoneni m'dera m'munsi agwira makina akupera, ndi fumbi chifukwa ayenera kuchotsedwa ndi zotsukira kuyamwa. Pamene zotsimikizira fiberglass kapena layering epoxy kudziletsa kukhazikika apansi, vanishi ndipo akupereka lililonse ❖ kuyanika wotsatira ayenera kugwiritsidwa ntchito kwa mokwanira solidified, komabe yomata wosanjikiza m'mbuyomu.

Ngati sayansi ndi zofunikira kuti chilolezo chotsirizidwa, m'munsi wosanjikiza, amene amachita monga gawo lapansi, ayenera kukhala kagawo kakang'ono owazidwa mchenga. Pambuyo kuchiritsa mchenga owonjezera ayenera kuchotsa ndi ntchito wosanjikiza atsopano a epoxy.

Konzani wambirimbiri utomoni epoxy

Ngati inu simukudziwa katundu yeniyeni ya utomoni epoxy, ndiye mungapeze mavuto kupanga zipangizo zambiri nthawi imodzi. Ndi kuwonjezera mphamvu epoxy, wambirimbiri kutentha. Otentha utomoni thovu adzakhala kuzimiririka woyera. Mapangidwe awa akhoza kukhala abwino ntchito. diluents ndi solvents mwina zidzawonjezedwa kuchepetsa kukhuthala kwa utomoni lapansi. Ngakhale woipa yaing'ono zingachititse kuchepa mphamvu ndi kutentha kukana la mankhwala. Chotsatira chimakhala exudation wa diluent ku polima ndi, imbaenda kudzitsitsa zakuthupi.

Epoxy resins ndi wothandizila akuchiritsa mulibe madzi. Ngati zimenezi zachitika, ndiye zikuchokera amakhala turbid ndi wotaya katundu wake. Today anamasulidwa otsegula epoxy. Nyimbo oterowo ayipanga ndi madzi otchezedwa kukwaniritsa kupezeka. Epoxy utomoni ayenera wothira plasticizer a. The osakaniza chifukwa pang'ono ndi pang'ono analimbikitsa ndi zoona ntchito DBP. Kutsatira DEG-1 zikuchokera ayenera kusakaniza.

Kwa kusanganikirana mokwanira ayenera kugwiritsidwa ntchito kubowola wapadera nozzle kumanga kapena chosakanizira a. Anapangira utomoni ndi plasticizer amasankhidwa malingana ductility chofunika, koma nthawi zambiri chiwerengero cha plasticizer Mitandadza 5 mpaka 10%. osakaniza linakhulupirira hardener lapansi. utomoni ndi utakhazikika kuti +30 ° C, kuteteza kuwira. Standard chiwerengero cha utomoni ndi hardener pamaoneka monga 1 10. Kuti tikwaniritse yunifolomu kuvunda hardener awonetsetse kusakaniza. Apo ayi, zikuchokera adzakhala sakanikira, ndipo kenako adzakhala thukuta.

utomoni Timatheriyali

Nthawi zambiri ambuye ntchito zakuti resins epoxy. ntchito awa anatsagana ndi mavuto ena. The mankhwala ayenera chimaonekera m'menemo sayenera mpweya thovu. The thicker ndi kuchiritsa pamwamba ayenera kukhala yunifolomu. Ngati makulidwe ndi pa 2 mm, chuma ntchito pambuyo zigawo chachikulu cha polymerization lapansi. utomoni akhoza anazitsanulira mwa mitundu. Kuti mankhwala anapatulidwa, mawonekedwe topaka mafuta odzola kapena mafuta.

Dye kwa epoxy utomoni adzapanga mtundu mankhwala. Nditamaliza mankhwala anakhalabe pa kutentha pang'ono pamwamba firiji. Pambuyo 3 chasa akubwera chachikulu polymerization akuchiritsa pamaso detachment, pambuyo mankhwala ayenera kutenthetsa kuti imathandizira pa ndondomeko akuchiritsa kwa maola 6. Ngati mwaganiza kuchita zamanja zopangidwa epoxy utomoni, ndiye, izo mwina sangathe kugwiritsa ntchito uvuni wapadera nduna.

Firiji ndi polymerization adzakhala masabata 2. Ngati zosakaniza anawonjezera triethylenetetramine, pamwamba zikhale yomata. Osewera mankhwala m'tsogolo ayenera machined. Epoxy utomoni kupanga zoweta si yoyenera kuponyera mankhwala chachikulu, chifukwa ndi osiyana akuchiritsa m'goli makulidwe.

Kupanga mtundu epoxy utomoni

Utoto kwa epoxy utomoni adzapereka kunyumba zikuchokera, utoto mumtundu yeniyeni. Pofuna kuonetsetsa yunifolomu kufalitsidwa kwa opanga pigment ntchito makumi surfactants. Mtundu akhoza kuchepetsa chilungamo cha utomoni, nthawizina amasintha mtundu, mdima wokhudzika. Kuwonjezera pigment kwa chothandizira ayenera ikuchitika koma pambuyo Kuwonjezera phula.

Luso makhalidwe a epoxy utomoni zikuchokera Chitsanzo chizindikiro ED 20

Epoxy utomoni, makhalidwe a umene ali m'munsiwa akuimira uchi ngati chikasu madzi amene mosavuta akuda. Osalimba pa 20 ° C yozungulira malire 1,16-1,25 makilogalamu / mamita ^3. kulimba kwamakokedwe ndi 40-90 MPa. mphamvu Flexural lofanana 80-140 MPa. mphamvu Compressive ndi 100-200 MPa.

The polymerization kutentha ndi 20 ° C ndi pamwamba. Ngati mukufuna mu utomoni epoxy, anapangira osakaniza pamene pamodzi hardener akhale ndi chidwi. inawo ayenera kugwiritsidwa ntchito mu kuchuluka kwa mbali 7, pamene utomoni ndi anawonjezera mu kuchuluka kwa 1 gawo. The polymerization nthawi 1.5 maola zikuchokera. Madzi mayamwidwe pambuyo maola 24 ndi wofanana ndi malire a 0.01-0.1%. Kutentha kukana ranges ku 55 170 ° C. Impact mphamvu 5-25 KJ / mamita ^2.

katundu Kiyi Wa epoxy utomoni

Tisanafotokoze akonze funso kumene kugula epoxy, muyenera kudziwa katundu amafotokoza. Mwa zina ayenera kuonetsetsa otsika kukaniza kuti akulimbana, komanso kawopsedwe enieni poyerekeza ndi resins akiliriki. The katundu wa utomoni epoxy akusonyeza kuti zikuchokera ali ndi kukhuthala mkulu, ayenera kugwiritsidwa ntchito molumikizana ndi solvents. osakaniza kungakhale mkangano, kapena kuwonjezera zosungunulira kwa kukhuthala utomoni m'munsi. Nthawi zonse, utomoni adzakhala madzimadzi kwambiri. Iwo ungagwiritsidwe ndi burashi kapena wodzigudubuza, mwamsanga mutipatse fiberglass ndi kudutsa pamwamba porous monga nkhuni.

Pomaliza

Nthawi zambiri, ogula akudabwa za kumene kugula epoxy utomoni. Lero, nkhaniyi amapereka zosiyanasiyana makampani, mwa ena, ayenera kukhala gulu golosale "Carbo" limene lili mu Moscow pa Volgograd prospectus, 42.