Resin Epoxy

1、Kupu Whakataki

Ko te kapia epoxy te tikanga e whakamahia tahitia ana me ngā tāpiringa. Ka taea te whiriwhiri i ngā tāpiringa kia rite ki ngā whakamahinga rerekē. Ko ngā tāpiringa noa ko te Kaiwhakaora, te Kaiwhakarerekē, te Whakakī, te Kaiwhakarewa, me ētahi atu.

He mea nui te kapia whakaora. Ahakoa he piripiri, he paninga, he whakarewa, he kapia whakaora rānei te kapia epoxy, me tāpiri, ki te kore, kāore e taea te whakaora. Nā te rerekētanga o ngā whakaritenga tono me te mahi, he rerekē ngā whakaritenga mō te kapia epoxy, te kapia whakaora, te whakarerekētanga, te whakakī, te waimeha me ētahi atu tāpiri.

2,Te Kōwhiringa o te Resin Epoxy

(1) Kōwhiria kia rite ki te Tono

① Ina whakamahia hei piripiri, he pai ake te whiriwhiri i te kapia he uara epoxy waenga (0.25-0.45);

② Ina whakamahia hei mea whakarewa, he pai ake te whiriwhiri i te kapia he nui te uara epoxy (0.40);

③ Ina whakamahia hei paninga, ko te kapia he iti te uara epoxy (< 0.25) te mea e whiriwhiria whānuitia ana.

(2) Kōwhiria kia rite ki te Kaha Mīhini

E pā ana te kaha ki te nui o te hononga whakawhiti. He teitei te uara epoxy, ā, he teitei anō hoki te nui o te hononga whakawhiti i muri i te whakamaroke. He iti te uara epoxy, ā, he iti te nui o te hononga whakawhiti i muri i te whakamaroke. Ka rerekē anō hoki te kaha mēnā he rerekē te uara epoxy.

① He kaha ake te kapia he nui te uara epoxy engari he pakarukaru;

② He kaha pai te kapia me te uara epoxy reo i te pāmahana teitei me te pāmahana iti;

③ He ngoikore te kaha o te kapia he iti te uara epoxy i te pāmahana tiketike.

(3) Kōwhiria kia rite ki ngā Whakaritenga Whakahaere

① Mō te hunga kāore e hiahia ana ki te ātete ki te pāmahana teitei me te kaha, ka taea e rātou te whiriwhiri i te kapia he iti ake te uara epoxy ka maroke wawe, ā, kāore e ngawari ki te ngaro.

② Mō te hunga e hiahia ana ki te uruhanga pai me te kaha, ka taea e rātou te whiriwhiri i te kapia he nui ake te uara epoxy.

3,Te Kōwhiringa o te Kaiwhakaora

(1) Momo Kaiwhakaora:

Ko ngā matū whakaora noa mō te kapia epoxy ko te amine aliphatic, te amine alicyclic, te amine kakara, te polyamide, te anhydride, te kapia me te amine tuatoru. Hei tāpiri, i raro i te mana o te photoinitiator, ka taea hoki e te UV, te mārama rānei te whakaora i te kapia epoxy. Ko te matū whakaora amine e whakamahia whānuitia ana mō te whakaora i te pāmahana rūma, i te pāmahana iti rānei, ko te anhydride me te matū whakaora kakara e whakamahia whānuitia ana mō te whakaora wera.

(2) Te Inenga o te Kaiwhakaora

① Ina whakamahia te amine hei ākena honohono, ka tatauhia penei:

Te horopeta o te amine = MG / HN

M = te taumaha ngota o te amine;

HN = te maha o te hauwai hohe;

G = te uara epoxy (te ōrite o te epoxy mō ia 100 karamu o te kapia epoxy)

Kāore te awhe whakarerekētanga e neke atu i te 10-20%. Mēnā ka nui rawa te amine e whakamaroketia ana, ka pakarukaru te kapia. Mēnā he iti rawa te horopeta, kāore e tino tika te whakamaroketia.

② Ina whakamahia te anhydride hei kaihoko honohono, ka tatauhia penei:

Te horopeta o te anhydride = MG (0.6 ~ 1) / 100

M = te taumaha ngota o te anhydride;

Ko te G = te uara epoxy (0.6 ~ 1) te tauwehenga whakamātautau.

(3) Te Mātāpono o te Kōwhiri i te Kaiwhakaora

① Ngā Whakaritenga Mahi.

Ko ētahi e hiahia ana ki te ātete pāmahana teitei, ko ētahi e hiahia ana ki te ngāwari, ko ētahi e hiahia ana ki te ātete waikura pai. Ka tīpakohia te matū whakamaroke tika i runga i ngā whakaritenga rerekē.

② Tikanga Whakamaroke.

Kāore e taea te whakamahana i ētahi hua, ā, kāore e taea te whiriwhiri i te kaiwhakaora mō te whakamahana.

③ Wā Tono.

Ko te wā tono e pā ana ki te wā mai i te wā e tāpirihia ana te kapia epoxy me te matū whakamaroke ki te wā e kore e taea te whakamahi. Mō te tono roa, ko ngā anhydride, ko ngā matū whakamaroke huna rānei te tikanga e whakamahia ana.

④ Haumaru.

Ko te tikanga, he pai ake, he haumaru hoki te rongoā he iti ake te paitini.

⑤ Utu.

4、Te Kōwhiringa o te Kaiwhakarerekē

Ko te pānga o te whakarerekētanga he whakapai ake i te kiri parauri, te ātete kutikuti, te ātete piko, te ātete pānga me te mahi whakamahana o te kapia epoxy.

(1) Ngā Whakarerekētanga me ngā Āhuatanga Noa

① Rapa polysulfide: whakapai ake i te kaha pānga me te ātete ki te tihore;

② Te kapia polyamide: whakapai ake i te pakarukaru me te piri;

③ Waipiro Polyvinyl TERT butyraldehyde: whakapai ake i te ātete ki te kiri parauri;

④ NBR: whakapai ake i te ātete ki te kiri parauri;

⑤ Phenolic resin: whakapai ake i te ātete pāmahana me te ātete waikura;

⑥ Te kapia polyester: whakapai ake i te ātete ki te kiri parauri;

⑦ Urea formaldehyde melamine resin: whakanui ake i te ātete matū me te kaha;

⑧ Te kapia furfural: whakapai ake i te mahi piko pateko, whakapai ake i te ātete waikawa;

⑨ Kapia winira: whakapai ake i te ātete ki te kiri me te kaha o te pānga;

⑩ Isocyanate: whakaiti i te urunga o te makuku me te whakanui ake i te ātete wai;

11 Hiraka: whakapai ake i te ātete wera.

(2) Inenga

① Rapa polysulfide: 50-300% (me te matū whakaora);

② Te kapia polyamide me te kapia phenolic: 50-100%;

③ Kapia polyester: 20-30% (kāore he matū whakaora, he iti rānei te matū whakaora hei whakatere i te tauhohenga.

I te nuinga o te wā, ko te nui ake o te whakarerekētanga e whakamahia ana, ko te nui ake o te ngāwari, engari ka heke te pāmahana whakarerekētanga wera o ngā hua kapia. Hei whakapai ake i te ngāwari o te kapia, ka whakamahia pinepinetia ngā matū whakapakari pērā i te dibutyl phthalate, te dioctyl phthalate rānei.

5、Te Kōwhiringa o ngā Whakakī

Ko te mahi a ngā whakakī he whakapai ake i ētahi āhuatanga o ngā hua me ngā āhuatanga whakamarara wera o te whakamaroke kapia. Ka taea hoki e ia te whakaiti i te nui o te kapia epoxy me te whakaiti i te utu. Ka taea te whakamahi i ngā whakakī rerekē mō ngā kaupapa rerekē. Me iti iho i te 100 mata, ā, ko te horopeta e whakawhirinaki ana ki tana whakamahinga. Ko ngā whakakī noa koia ēnei:

(1) Te muka asbestos me te muka karāhe: ka whakanui ake i te pakari me te ātete ki te pānga;

(2) Paura kuata, paura porcelain, paura rino, sima, emery: ka whakanui ake i te pakeke;

(3) Te paura konumohe me te porcelain: ka whakanui ake i te kaha piri me te kaha miihini;

(4) Paura asbestos, paura silica gel me te sima pāmahana teitei: whakapai ake i te ātete wera;

(5) Paura asbestos, paura quartz me te paura kōhatu: whakaitihia te tere mimiti;

(6) Paura konumohe, paura parahi, paura rino me ētahi atu paura whakarewa: ka whakanui ake i te kawe wera me te kawe hiko;

(7) Paura graphite, paura talc me te paura quartz: whakapai ake i te mahi ārai-kakahu me te mahi whakahinuhinu;

(8) Emery me ētahi atu mea whakakoi: whakapai ake i te mahi ātete-kakahu;

(9) Paura mika, paura porcelain me te paura quartz: ka whakanui ake i te mahi whakamahana;

(10) Ngā momo tae me te karāpeti katoa: me te tae;

Hei tāpiritanga, e ai ki ngā raraunga, ko te nui e tika ana (27-35%) o ngā waikura P, As, Sb, Bi, Ge, Sn me Pb e tāpirihia ana ki te kapia ka taea te pupuri i te piri i raro i te wera me te pēhanga teitei.

6、Te Kōwhiringa o te Wairewa Whakarewa

Ko te mahi a te waiwhakarewa he whakaiti i te matotoru me te whakapai ake i te uruhanga o te kapia. Ka taea te wehewehe ki ngā wāhanga e rua o te waiwhakarewa me te waiwhakarewa hohe, ā, ko te nui o te waiwhakarewa e kore e neke ake i te 30%. Ko ngā waiwhakarewa noa ko te diglycidyl ether, te polyglycidyl ether, te propylene oxide butyl ether, te propylene oxide phenyl ether, te dicyclopropane ethyl ether, te triethoxypropane propyl ether, te waiwhakarewa hohe, te xylene, te toluene, te acetone, me ētahi atu.

7、Ngā Whakaritenga Rauemi

I mua i te tāpiri i te matū whakamaroke, me tirotirohia ngā rauemi katoa e whakamahia ana, pērā i te kapia, te matū whakamaroke, te whakakī, te whakarerekētanga, te waiwhakarewa, me ētahi atu, ā, me tutuki hoki ēnei whakaritenga e whai ake nei:

(1) Kāore he wai: me whakamaroke tuatahi ngā rauemi kei roto he wai, ā, me whakaiti te whakamahinga o ngā whakarewa kei roto he iti noa te wai.

(2) Te Parakore: me iti iho i te 1% te nui o ngā poke i tua atu i te wai. Ahakoa ka taea hoki te whakamahi me te 5%-25% o ngā poke, me whakanui ake te ōrau o ētahi atu rauemi i roto i te tauira. He pai ake te whakamahi i te reagent grade i roto i te iti o te rahinga.

(3) Te Wā Whai Mana: He mea tika kia mōhiotia mēnā he kore mana ngā rauemi.