Epoxy Resin

1、Hoʻolauna

Hoʻohana pinepine ʻia ka epoxy resin me nā mea hoʻohui. Hiki ke koho ʻia nā mea hoʻohui e like me nā hoʻohana like ʻole. ʻO nā mea hoʻohui maʻamau ka Curing Agent, Modifier, Filler, Diluent, etc.

ʻO ka lāʻau lapaʻau he mea hoʻohui pono ʻole. Inā hoʻohana ʻia ka resin epoxy e like me ka adhesive, coating, castable, curing agent pono e hoʻohui ʻia, inā ʻaʻole hiki ke ho'ōla ʻia. Ma muli o nā koi like ʻole o ka noi a me ka hana, aia nā koi like ʻole no ka epoxy resin, curing agent, modifier, filler, diluent a me nā mea hoʻohui ʻē aʻe.

2 、Ke koho ʻana i ka Epoxy Resin

(1) E koho e like me ka Aplication

① Ke hoʻohana ʻia e like me ka mea hoʻopili, ʻoi aku ka maikaʻi o ke koho ʻana i ka resin me ka waiwai epoxy medium (0.25-0.45);

② Ke hoʻohana ʻia e like me ka castable, ʻoi aku ka maikaʻi o ke koho ʻana i ka resin me ka waiwai epoxy kiʻekiʻe (0.40);

③ Ke hoʻohana ʻia e like me ka uhi ʻana, koho ʻia ka resin me ka waiwai epoxy haʻahaʻa (<0.25).

(2) E koho e like me ka Mechanical Strength

Pili ka ikaika i ka pae o ka crosslinking. He kiʻekiʻe ka waiwai epoxy, a ʻoi aku ka kiʻekiʻe o ka crosslinking degere ma hope o ka mālama ʻana. He haʻahaʻa ka waiwai epoxy a haʻahaʻa ke degere crosslinking ma hope o ka hoʻōla ʻana. ʻO ka waiwai epoxy ʻokoʻa ke kumu o ka ikaika like ʻole.

① ʻO ka resin me ka waiwai epoxy kiʻekiʻe ka ikaika kiʻekiʻe akā he palupalu;

② He ikaika maikaʻi ka resin me ka waiwai epoxy ma ke kiʻekiʻe a me ka haʻahaʻa haʻahaʻa;

③ ʻAʻole ikaika ka resin me ka waiwai epoxy haʻahaʻa i ka wela kiʻekiʻe.

(3) E koho e like me nā Koina Hana

① No ka poʻe ʻaʻole makemake i ka pale wela kiʻekiʻe a me ka ikaika, hiki iā lākou ke koho i ka resin me ka waiwai epoxy haʻahaʻa hiki ke maloʻo koke a ʻaʻole maʻalahi e nalowale.

② No ka poʻe makemake i ka permeability maikaʻi a me ka ikaika, hiki iā lākou ke koho i ka resin me ka waiwai epoxy kiʻekiʻe.

3、Koho ana i ka mea hoola

(1) Ke ʻano o ka lāʻau lapaʻau:

ʻO nā lāʻau lapaʻau maʻamau no ka resin epoxy he amine aliphatic, amine alicyclic, amine aromatic, polyamide, anhydride, resin a me ka amine tertiary. Eia kekahi, ma lalo o ka hopena o ka photoinitiator, hiki i ka UV a i ʻole ke kukui ke hana i ka epoxy resin curing. Hoʻohana maʻamau ʻia ka mea hoʻoponopono amine no ka wela lumi a i ʻole ka mālama ʻana i ka wela haʻahaʻa, aʻo ka anhydride a me ka mea hoʻōla ʻala ʻono e hoʻohana mau ʻia no ka hoʻōla wela.

(2) Ka hoʻopaʻa ʻana o ka lāʻau lapaʻau

① Ke hoʻohana ʻia ka amine ma ke ʻano he crosslinking agent, ua helu ʻia penei:

ʻAmina ʻai = MG / HN

M = ke kaumaha molekula o ka amine;

HN = helu o ka hydrogen hana;

G = waiwai epoxy (epoxy like no 100 g o ka epoxy resin)

ʻAʻole ʻoi aku ka nui o ka hoʻololi ma mua o 10-20%. Inā hoʻōla ʻia me ka nui o ka amine, e lilo ka resin i palupalu. Inā liʻiliʻi loa ka dosage, ʻaʻole kūpono ka hoʻōla ʻana.

② Ke hoʻohana ʻia ka anhydride ma ke ʻano he crosslinking agent, ua helu ʻia penei:

Anhydride dosage = MG (0.6 ~ 1) / 100

M = ke kaumaha molekala o ka anhydride;

G = waiwai epoxy (0.6 ~ 1) ka helu hoʻokolohua.

(3) Ke Kumu o ke koho 'ana i ka mea ho'ōla

① Nā Koina Hana.

Pono kekahi i ka pale wela kiʻekiʻe, koi kekahi i ka maʻalahi, a ʻo nā mea ʻē aʻe e koi i ka pale corrosion maikaʻi. Koho ʻia ka lāʻau lapaʻau kūpono e like me nā koi like ʻole.

② ʻO ke ʻano hoʻōla.

ʻAʻole hiki ke hoʻomaʻamaʻa ʻia kekahi mau huahana, a laila ʻaʻole hiki ke koho ʻia ka mea ho'ōla wela.

③ Manawa Noi.

ʻO ka mea i kapa ʻia ʻo ka manawa noi e pili ana i ka manawa mai ka manawa i hoʻohui ʻia ai ka resin epoxy me ka mea hoʻōla a hiki i ka manawa hiki ʻole ke hoʻohana. No ka lōʻihi o ka hoʻohana ʻana, hoʻohana pinepine ʻia nā anhydride a i ʻole nā ​​​​mea lapaʻau latent.

④ Palekana.

ʻO ka maʻamau, ʻoi aku ka maikaʻi o ka lāʻau lapaʻau me ka liʻiliʻi o ka ʻawaʻawa a palekana no ka hana ʻana.

⑤ Kumukuai.

4、ʻO ke koho ʻana i ka mea hoʻololi

ʻO ka hopena o ka hoʻololi ʻana ʻo ia ka hoʻomaikaʻi ʻana i ka tanning, shearing resistance, bending resistance, impact resistance and insulation performance of epoxy resin.

(1) Nā mea hoʻololi maʻamau a me nā ʻano

① ʻO ka polysulfide rubber: hoʻomaikaʻi i ka ikaika o ka hopena a me ka pale ʻana i ka peeling;

② Polyamide resin: hoʻomaikaʻi i ka brittleness a me ka pili;

③ ʻO ka waiʻona polyvinyl TERT butyraldehyde: hoʻomaikaʻi i ka hopena tanning kū'ē;

④ NBR: hoʻomaikaʻi i ka hopena tanning kū'ē;

⑤ Phenolic resin: hoʻomaikaʻi i ka pale wela a me ka pale ʻana i ka corrosion;

⑥ Polyester resin: hoʻomaikaʻi i ka hopena tanning kū'ē;

⑦ Urea formaldehyde melamine resin: hoʻonui i ke kū'ē a me ka ikaika;

⑧ Furfural resin: hoʻomaikaʻi i ka static bending performance, hoʻomaikaʻi i ke kūpaʻa waika;

⑨ Vinyl resin: hoʻomaikaʻi i ka pale ʻana i ka peeling a me ka ikaika hopena;

⑩ Isocyanate: ho'ēmi i ka makū permeability a hoʻonui i ka wai kū;

11 Silicone: hoʻomaikaʻi i ka pale wela.

(2) ʻAiʻai

① Kāpena Polysulfide: 50-300% (me ka lāʻau lapaʻau);

② Polyamide resin a me phenolic resin: 50-100%;

③ ʻO ka resin polyester: 20-30% (me ka ʻole o ka lāʻau lapaʻau, a i ʻole kahi liʻiliʻi o ka lāʻau lapaʻau e hoʻolalelale i ka hopena.

ʻO ka ʻōlelo maʻamau, ʻoi aku ka hoʻohana ʻana o ka mea hoʻololi, ʻoi aku ka nui o ka maʻalahi, akā ke emi nei ka mahana deformation thermal o nā huahana resin. I mea e hoʻomaikaʻi ai i ka maʻalahi o ka resin, hoʻohana pinepine ʻia nā mea paʻakikī e like me dibutyl phthalate a i ʻole dioctyl phthalate.

5、Ke koho ana i na mea hoopiha

ʻO ka hana o nā mea hoʻopihapiha ka hoʻomaikaʻi ʻana i kekahi mau waiwai o nā huahana a me nā kūlana dissipation wela o ka resin curing. Hiki iā ia ke hōʻemi i ka nui o ka epoxy resin a hoʻemi i ke kumukūʻai. Hiki ke hoʻohana ʻia nā mea hoʻopihapiha like ʻole no nā kumu like ʻole. Pono ia ma lalo o 100 mesh, a pili ka dosage i kāna noi. ʻO nā mea hoʻopihapiha maʻamau penei:

(1) Asbestos fiber a me aniani fiber: hoʻonui i ka paʻakikī a me ke kū'ē i ka hopena;

(2) ʻO ka pauka Quartz, ka pauka porcelain, ka pauka hao, ka sima, ka emery: hoʻonui i ka paʻakikī;

(3) Alumina a me ka pauka porcelain: hoʻonui i ka ikaika a me ka ikaika mechanical;

(4) Asbestos pauda, ​​silica gel pauka a me ke kiʻekiʻe wela sima: hoʻomaikaʻi i ka wela;

(5) ʻO ka pauka Asbestos, ka pauka quartz a me ka pauka pōhaku: e hoʻemi i ka helu shrinkage;

(6) ʻO ka pauka alumini, ka pauka keleawe, ka pauka hao a me nā pauka metala ʻē aʻe: hoʻonui i ka conductivity thermal a me ka conductivity;

(7) ʻO ka pauka Graphite, ka pauka talc a me ka pauka quartz: hoʻomaikaʻi i ka hana anti-wear a me ka hana lubrication;

(8) Emery a me nā mea abrasive ʻē aʻe: hoʻomaikaʻi i ka hana anti-wear;

(9) ʻO ka pauka Mika, ka pauka porcelain a me ka pauka quartz: hoʻonui i ka hana insulation;

(10) ʻO nā ʻano puaʻa a me ka graphite: me ke kala;

Eia kekahi, e like me ka ʻikepili, ʻo ka nui kūpono (27-35%) o P, As, Sb, Bi, Ge, Sn a me Pb oxides i hoʻohui ʻia i loko o ka resin hiki ke mālama i ka adhesion ma lalo o ka wela a me ke kaomi.

6、Ke koho ʻana i ka Diluent

ʻO ka hana o ka diluent e hōʻemi i ka viscosity a hoʻomaikaʻi i ka permeability o ka resin. Hiki ke hoʻokaʻawale ʻia i ʻelua mau ʻāpana inert a me ka ikaika, a ʻo ka nui ʻaʻole i ʻoi aku ma mua o 30%. ʻO nā mea hoʻoheheʻe maʻamau ka diglycidyl ether, polyglycidyl ether, propylene oxide butyl ether, propylene oxide phenyl ether, dicyclopropane ethyl ether, triethoxypropane propyl ether, inert diluent, xylene, toluene, acetone, etc.

7、Pono Mea

Ma mua o ka hoʻohui ʻana i ka curing agent, pono e nānā ʻia nā mea āpau i hoʻohana ʻia, e like me ka resin, curing agent, filler, modifier, diluent, etc., e hoʻokō i nā koi aʻe:

(1) ʻAʻohe wai: pono e hoʻomaloʻo mua ʻia nā mea i loko o ka wai, a e hoʻohana ʻia nā mea hoʻoheheʻe liʻiliʻi i ka wai.

(2) Maʻemaʻe: ʻo ka ʻike o nā haumia ʻē aʻe ma mua o ka wai e emi iho ma mua o 1%. ʻOiai hiki ke hoʻohana pū ʻia me 5% -25% haumia, pono e hoʻonui ʻia ka pākēneka o nā mea ʻē aʻe i ke ʻano. ʻOi aku ka maikaʻi o ka hoʻohana ʻana i ka pae reagent ma kahi liʻiliʻi.

(3) Manaʻo o ka Pono: Pono e ʻike inā ʻaʻole kūpono nā mea.