Me pēhea te ki te tareka te teriuma epoxy? Mahi ki te epoxy kapia

mohiotia te kupu "epoxy" te ki tata katoa. Ko te kapia epoxy, i te mea tino noa tono tenei ra, ko te ahua o te kapia waihanga. puta te reira i roto i te 50s. rau tau mua, me te hohoro riro whakawhetai rongonui ki ona āhuatanga pūkenga.

I teie mahana, Kei te whakamahia resins epoxy i roto i te hanga ahumahi me te whare. E tonu whakawhänui tono pea e tika ana ki te whanaketanga o formulations ki ake āhuatanga.

Whakaahuatanga epoxy

E ai ki te hanganga matū o epoxy kapia - he oligomeric pūhui waihanga. Ko enei rauemi i roto i te tono i roto i tata katoa ao o ahumahi. Kei te whakamahia te puka epoxy free, engari i roto i te taha ki te kaihoko haamărôraa e taea faaite mai i te reira āhuatanga ahurei i muri i polymerization tauhohenga. Ki te ki nga āpiha epoxy kapia haamărôraa hono ki, Ka taea e tupu te reira:

• pakeke, rauemi totoka;
• hua Soft me roa;
• rauemi rapa-rite.

He ātete ki te matū e whai ake resins epoxy:

• kōnakonako;
• waikawa;
• kawakore.

Heoi, puta te whakakorenga i roto i ngā hākawa me hauwaiwaro kahore kiriata hanganga. I muri te whakaora i te hanganga epoxy kapia e kore e emit ona volatiles me te na'ina'iraa he iti.

tupuranga kāpia Rawa epoxy

Ki te kei te miharo koe e pā ana ki te pehea, ki te tareka te epoxy, kia mohio koutou e te kore i te taikaha o te whakaora kaihoko i roto i te hanganga ranei e taea te pēhia ngā te kounga o te waerau, i toe ātete ki te wera, engari iti tona kaha ko, e ora te kaha ki te kaupare i te matū me te wai . Ki te te tapiritia te hardener i iti nui, kia tāpiapia te tuhinga e tika ana ki te teriuma herekore.

I mua waimeha te teriuma epoxy, he mea e tika ana ki te matau e tukua te hardener noa i te taikaha te i te mata polymer i roto i te mahi. Hoki pūhui rerekē wāhanga curable me teriuma e whakamahia i roto i hanganga rerekē, e taea te kitea i tenei i roto i te buka haapiiraa. A, no te haere mai te reira ki pūhui hou, ko te noa te nuinga e whai ake te ōwehenga: 1 ki te 2 ranei 1: 1.

Tūtohutanga mo te tupuranga o te epoxy kapia

Ki te rā, kua whakapono reira e, no te whakamahi i te hardener i roto i te rōrahi, nui atu i te täkupu tauhohe polymerization puta tere. Ka taea te whakaaro tinihanga nga tēnei whakaaro. Ko te huarahi māmā ki te tere ake te tukanga ko ki te whakapiki ake i te pāmahana o te ranunga tauhohe.

Ki te hiahia koe ki te tere ake te wā tukanga e toru, kia nui haere te pāmahana ki te 10 ° C. Ki te whakaara koe i te pātai o te pehea, ki te tareka te epoxy, kia mohio koutou mohiotia taua i tenei ra e pūhui motuhake, e roto i tito accelerators fakafuofua'i ke. Ka taea te kitea te reira i runga i pūhui hoko, me epoxy e tā i iti te pāmahana. Patohia te whakaora kaihoko me te pāmahana o te mahi ranunga rite āhuatanga matua e pā te auau o te polymerization.

kapia epoxy momo: tito ki rerekē pāmahana polymerization

kia ora te teriuma epoxy i te pāmahana mai i -10 ki te +200 ° C, ka whakawhirinaki ai ki runga ki te momo whakamahia hanganga. Ki te rā, mohiotia resins hoki haamărôraa wera, me te matao. momo Cold hardener me epoxy kapia tino pinepine whakamahia i roto i te ora ia rā. Ki te whakatau ka taea e waiho he hanganga taua i roto i nga tikanga o te hanga, me te mana iti, a kei hea he Kāore te maimoatanga wera.

Ki te whiwhi hua kaha tiketike ki te taea ki te mau pikaunga tiketike me pāmahana, me te te rongo ki ngā matū, e whakamahia wāhanga momo haamărôraa wera. rāpoi mata matotoru i hanga i roto i polymerization wera. Ano, i reira he titonga me o ratou waikura e he taea ki te polymerize i te wai moana, me te i roto i ngā āhuatanga takawai.

poi o tono

rauemi epoxy tohaina tenei ra huri noa te ao, e mohiotia e ratou mai te waenganui o te rau tau whakamutunga. Kua oti te āhua o te whakamahi o enei rauemi i roto i te tau tata huringa nui, engari ko te whakamahi, ko te tuku iho i roto i te maha o ngā wāhi, i roto ia ratou:

• te muka karaihe moe, me te muka karaehe;
• paninga hoki wuru;
• hanganga o coatings matū-ātete;
• hanga o te rauemi totoka mārama mō ngā hua kaka.

Epoxy kapia, te whakamahi o nei te mea inaianei tino noa, e taea mahi hei kaihoko impregnating mō wāhanga hononga i roto i te hiko, automotive, mara Aviation, hikohiko me te ahumahi. I roto i tenei take, te hanganga whakamahia i roto i te hanga o kaka kōata i roto i te engineering mīhini me te pahi, hanga, tikanga hanga awheawhe nga mea timatanga tinana motokā me takere kaipuke.

kawea Mahi ki epoxy kapia te i roto i te wahi i reira he he hiahia mo hiri nga taiepa me papa o basements me harotoroto. Whakamahia ai e hanga o ngā rauemi epoxy kapia me peita mo te whakapaipai waho, me te roto o ngā whare, me te impregnation, e ka whakarato wuru rauemi maiengi, me nui haere o ratou kaha, kia tohaina ratou i roto i te rakau, me te raima.

mo te record

Ko te kapia epoxy kia hanga i te pūtake o te rauemi totoka mārama, whakamana nei e maka ana ki roto ki te pokepokea ai. I roto i te wāhanga i muri o te hua tukatuka e tikanga aunoa, pērā i: huri me te whakairo. Whakamahia hoki ngā hua kaka kōata i roto i nga mahi hoahoa, te ahumahi te hikohiko, hanga, me te whare.

Mahi ki epoxy: teuteu mata

Mahi ki epoxy tā te hiahia mō te faaineineraa mata mua ki tono o te hanganga. katahi anake ka taea ki te whakatutuki i adhesion teitei. Na reira, i mua ki te tareka te teriuma epoxy, tuatahi faaineine i te mata. Hei tīmata i tētahi degreasing turanga. I runga i te mata kia kore tohu o te hinu, me te hinu. horoia te mata kei te whakamahi i te whakarewa hopiwē ranei whai hua. He mea nui ki te manatoko i te ngaro o te mōhinuhinu.

I nekehia atu te paparanga o runga i te huri. kia rite papa iti i te ringa, te whakamahi i te pepa ki te hei tenei. Marutuna i runga i te rohe turanga i whawha atu huri mīhini, a kia nekehia atu te puehu hua ki te kaihoroi mārua. A, no te hokohoko kaka kōata ranei tāpae epoxy whaiaro whakaōritenga-witi, varnishes me pania me te tono ia paninga muri ki te kore e tino ua haapuai, paparanga o mua tonu tāpiapia.

Ki te, te apa o raro, e mahi rite te tïpako, me kia te hangarau, me te whakaritenga ki te tukua e te hua oti hautanga iti tauhiuhia onepu. I muri te whakaora onepu te taikaha e Me ki te tango me te tono i te kahu hou o epoxy.

Whakapaia te nui nui o te kapia epoxy

Ki te kahore koe e mohio ki nga āhuatanga motuhake o te teriuma epoxy, ka kia tūtaki koe raruraru i roto i te hanga o ngā rauemi i roto i te nuinga. Ki te whakanui ake i epoxy rōrahi, he nui nui o te wera. Kohua kapia pahuka ka riro ma puhoi. e kore e taea te whakaaro i tēnei hanganga e tika ana mō te whakamahi. kia tapiritia ai diluents me whakarewa ki te whakaiti i te pokey ki te teriuma. Ahakoa e taea nohanga iti meinga he heke i roto i te kaha me te wera ātete o te hua. riro te putanga exudation o diluent i te waerau, e tika ana ki te kinonga o te rauemi.

resins epoxy me āpiha fakafuofua'i ke e kore e roto i te wai. Ki te tupu tenei, ka riro mangu te hanganga, me te ngaro ona āhuatanga. tukua teie mahana waterborne epoxy. E muia taua tito ki te wai māturu ki te whakatutuki i purara. kia epoxy kapia kia konatunatua ki te plasticizer. He pono te ranunga hua i mahana āta ka whakamahi i DBP. I roto i te tono DEG-1 hanganga kia konatunatua.

Hoki Mixing tino kia whakamahia ki te wiri hanga pupuha motuhake te whakaranu ranei. Kua tīpakohia te hanganga o te teriuma me te plasticizer runga i te ukanga hiahiatia rānei, engari te nuinga maha awhe te rahi o te plasticizer i te 5 ki te 10%. I honoa te ranunga ki te hardener. te matao o te kāpia e ki +30 ° C, ki te ārai i koropupu. rahi Paerewa o te teriuma me te hardener puta rite 1 ki te 10. Hei whakatutuki kākahu whakakorenga hardener kia whakarite te ranu. Kore, ka heterogeneous te hanganga, a muri ka werawera.

uku Crafts

Tino maha rangatira mahi tuhinga i resins epoxy. E haere tahi ēnei mahi i etahi fifi. Ko te hua e whai ana i reira mārama kia kore mirumiru hau. Ko te nui me te whakaora i te mata kia kia ōrite. Ki te ko te matotoru i runga i te 2 mm, tono te rauemi e i muri i te papa tuatahi o te polymerization. Ka taea te ringihia te kāpia ki ngā puka. Ki i wehea te hua, pania puka ki te hinu tiēre hinu ranei.

Waikano mō epoxy kapia e hanga te tae hua. I muri tonu otinga o te hua kei te i te pāmahana paku runga ake te pāmahana rūma. I muri 3 chasa mai haamărôraa polymerization tuatahi i mua i wehe, i muri i te hua kua ki te kia mahana ki te whakatere i te tukanga haamărôraa mō te 6 haora. Ki te whakatau koe ki te mahi i mahi toi hanga o epoxy kapia, ka, e kore ai e reira taea ki te whakamahi i te oumu rūnanga motuhake.

I te pāmahana rūma, ka muri i te polymerization 2 wiki. Ki te tapiritia te kai triethylenetetramine, kia noho tāpiapia te mata. Me machined hua maka i roto i te heke mai. e kore epoxy kapia production motu he rite e tika ana mō te whakarewanga o ngā hua nui, no te mea he reira rerekē haamărôraa matotoru pāhiwihiwi.

Making epoxy tae kāpia

Tae hoki epoxy kapia e whakarato hanganga kāinga, pania i roto i te tae motuhake. I roto i te tikanga ki te whakarite i te tohatoha ōrite o te kaihanga ngarahu whakamahi tekau surfactants. Ka taea e ähua whakaiti i te mārama o te kāpia, i ētahi wā taui te reira tae, te ware pouri. Tāpiri ngarahu ki te whakakōkī kia kawea atu engari i muri i te tua o te ware pi.

āhuatanga Hangarau o te hanganga epoxy kapia o te hi'oraa tohu ED-20

Epoxy kapia, nga āhuatanga o e ka e tabulahia i raro nei, tohu he wai kowhai honi-rite noa te i tae. Kiato i 20 ° C ambient ko te rohe 1,16-1,25 kg / m ^3. Kurut kaha ko 40-90 MPa. kaha Flexural ōrite ki 80-140 MPa. Shock kaha ko 100-200 MPa.

Ko te pāmahana polymerization ko 20 ° C, me te runga ake. Ki te hiahia i roto i te te kāpia epoxy koutou, kia whai moni te hanganga o te ranunga ina ngā ki te hardener. Me whakamahia te whakamutunga i roto i te nui o te 7 wahi, i te tapiritia te kāpia i roto i te nui o 1 wahi. Ko te wa polymerization ko 1.5 haora hanganga. Water absorption i muri i te 24 haora he rite ki te rohe o 0.01-0.1%. awhe Heat ātete i 55 ki te 170 ° C. Impact kaha ko 5-25 kJ / m ^2.

āhuatanga matua o te epoxy kapia

I mua i te whakatutuki tatou i te pātai o te wahi ki te hoko epoxy, kia mohio koe ona āhuatanga taketake. I roto i te tahi atu e tohatoha ātete iti ki hangai, me te tāoke atu nui rite whakaritea ki resins kiriaku. tohu nga āhuatanga o te teriuma epoxy e te hanganga kua he pokey tiketike, kia whakamahia te reira i roto i te taha ki te whakarewa. pea te ranunga wera, tāpiri i te whakarewa ki raro i te pokey o te teriuma ranei. I roto i te wā e rua, ka riro i te teriuma atu inu. taea te tono te reira i te paraihe takai ranei, te reira hohoro impregnate kaka kōata, ka tomo i te mata maiengi pērā i te rakau.

mutunga

Tino maha, kei te miharo kiritaki e pā ana ki te wahi ki te hoko i te teriuma epoxy. I teie mahana, tuku tenei rauemi he momo o kamupene, i roto i etahi atu, kia hanga hokomaha hiato "Carbo" kei nei i roto i Moscow i te tohu ai Volgograd, 42.