Guduron Epoxy

1、Gabatarwa

Yawanci ana amfani da resin Epoxy tare da ƙarin abubuwa. Ana iya zaɓar ƙarin abubuwa bisa ga amfani daban-daban. Ƙarin abubuwa da aka saba amfani da su sun haɗa da Maganin Gyara, Mai Gyara, Mai Cika, Mai Rage Nauyi, da sauransu.

Maganin shafawa wani ƙarin abu ne da ba makawa. Ko ana amfani da resin epoxy a matsayin manne, ya kamata a ƙara masa wani abu mai rufi, wanda za a iya amfani da shi a matsayin mai gyarawa, ko kuma mai gyarawa, in ba haka ba ba za a iya warkar da shi ba. Saboda buƙatun aikace-aikace da aiki daban-daban, akwai buƙatu daban-daban na resin epoxy, wakilin warkarwa, mai gyarawa, mai cikawa, mai diluent da sauran ƙari.

2,Zaɓin Resin Epoxy

(1) Zaɓi bisa ga Aikace-aikacen

① Idan aka yi amfani da shi azaman manne, ya fi kyau a zaɓi resin mai matsakaicin ƙimar epoxy (0.25-0.45);

② Idan aka yi amfani da shi azaman abin da za a iya jefawa, ya fi kyau a zaɓi resin mai ƙimar epoxy mai girma (0.40);

③ Idan aka yi amfani da shi azaman shafa, galibi ana zaɓar resin mai ƙarancin ƙimar epoxy (< 0.25).

(2) Zaɓi bisa ga Ƙarfin Inji

Ƙarfin yana da alaƙa da matakin haɗin gwiwa. Ƙimar epoxy tana da girma, kuma matakin haɗin gwiwa yana da girma bayan an warke. Ƙimar epoxy tana da ƙasa kuma matakin haɗin gwiwa yana da ƙasa bayan an warke. Bambancin ƙimar epoxy kuma zai haifar da ƙarfi daban-daban.

① Resin mai ƙimar epoxy mai girma yana da ƙarfi mafi girma amma yana da rauni;

② Resin mai matsakaicin darajar epoxy yana da ƙarfi mai kyau a zafi mai yawa da ƙarancin zafi;

③ Resin mai ƙarancin darajar epoxy ba shi da ƙarfi sosai a yanayin zafi mai yawa.

(3) Zaɓi bisa ga Bukatun Aiki

① Ga waɗanda ba sa buƙatar juriya da ƙarfi mai yawa a yanayin zafi, za su iya zaɓar resin mai ƙarancin ƙimar epoxy wanda zai iya bushewa da sauri kuma ba shi da sauƙin ɓacewa.

② Ga waɗanda ke buƙatar ingantaccen ƙarfin aiki da ƙarfi, za su iya zaɓar resin mai ƙimar epoxy mafi girma.

3,Zaɓin Maganin Warkewa

(1) Nau'in Maganin Warkewa:

Sinadaran warkarwa na yau da kullun don resin epoxy sun haɗa da aliphatic amine, alicyclic amine, aromatic amine, polyamide, anhydride, resin da tertiary amine. Bugu da ƙari, ƙarƙashin tasirin photoinitiator, UV ko haske suma suna iya yin warkar da resin epoxy. Ana amfani da maganin warkar da amine gabaɗaya don warkar da zafin ɗaki ko ƙarancin zafin jiki, yayin da anhydride da maganin warkar da ƙanshi galibi ana amfani da su don warkar da zafi.

(2) Yawan Maganin Magance Matsaloli

① Idan aka yi amfani da amine a matsayin wakili mai haɗa haɗin gwiwa, ana ƙididdige shi kamar haka:

Yawan sinadarin Amine = MG / HN

M = nauyin kwayoyin halitta na amine;

HN = adadin hydrogen mai aiki;

G = ƙimar epoxy (daidai yake da epoxy a kowace gram 100 na resin epoxy)

Canjin bai wuce kashi 10-20% ba idan aka warke da sinadarin amine mai yawa, resin zai yi rauni. Idan yawan maganin ya yi ƙanƙanta, to ba zai yi kyau ba.

② Idan aka yi amfani da anhydride a matsayin wakili mai haɗa haɗin gwiwa, ana ƙididdige shi kamar haka:

Yawan sinadarin anhydride = MG (0.6 ~ 1) / 100

M = nauyin kwayoyin halitta na anhydride;

G = ƙimar epoxy (0.6 ~ 1) shine ma'aunin gwaji.

(3) Ka'idar Zaɓar Maganin Warkewa

① Bukatun Aiki.

Wasu suna buƙatar juriyar zafi mai yawa, wasu suna buƙatar sassauci, wasu kuma suna buƙatar juriyar tsatsa mai kyau. Ana zaɓar maganin da ya dace bisa ga buƙatu daban-daban.

② Hanyar Magance Matsaloli.

Wasu samfuran ba za a iya dumama su ba, to ba za a iya zaɓar wakilin warkarwa na warkar da zafi ba.

③ Lokacin Aiwatarwa.

Lokacin da ake kira lokacin amfani yana nufin lokacin da aka ƙara resin epoxy tare da maganin warkarwa zuwa lokacin da ba za a iya amfani da shi ba. Don amfani da shi na dogon lokaci, galibi ana amfani da anhydrides ko magungunan warkarwa masu ɓoye.

④ Tsaro.

Gabaɗaya, maganin warkarwa wanda ba shi da guba sosai ya fi kyau kuma amintacce don samarwa.

⑤ Kudin.

4、Zaɓin Mai Gyara

Tasirin mai gyarawa shine inganta tanning, juriyar yankewa, juriyar lanƙwasa, juriyar tasiri da aikin rufin epoxy resin.

(1) Masu Gyara da Halaye na Yau da Kullum

① Robar Polysulfide: inganta ƙarfin tasiri da juriyar barewa;

② Polyamide resin: inganta brittleness da mannewa;

③ Polyvinyl barasa TERT butyraldehyde: inganta juriyar tanning;

④ NBR: inganta juriya ga tanning;

⑤ Resin phenolic: inganta juriyar zafin jiki da juriyar tsatsa;

⑥ Resin Polyester: inganta juriyar tanning;

⑦ Urea formaldehyde resin melamine: ƙara juriya da ƙarfi ga sinadarai;

⑧ Furfural resin: inganta aikin lanƙwasawa mai tsauri, inganta juriyar acid;

⑨ Vinyl resin: inganta juriyar barewa da ƙarfin tasiri;

⑩ Isocyanate: rage yawan danshi da kuma ƙara juriya ga ruwa;

11 Silicone: inganta juriyar zafi.

(2) Yawan amfani

① Robar Polysulfide: 50-300% (tare da maganin warkarwa);

② Resin Polyamide da resin phenolic: 50-100%;

③ Resin polyester: 20-30% (ba tare da maganin warkarwa ba, ko ƙaramin adadin maganin warkarwa don hanzarta amsawar.

Gabaɗaya dai, yawan amfani da na'urar gyarawa, yawan sassaucin da ake samu, amma yanayin zafi na nakasassu na samfuran resin yana raguwa gwargwadon haka. Domin inganta sassaucin resin, galibi ana amfani da sinadaran tauri kamar dibutyl phthalate ko dioctyl phthalate.

5、Zaɓin Masu Cikawa

Aikin masu cikawa shine inganta wasu halaye na samfura da yanayin zubar da zafi na resin da ke wargazawa. Hakanan yana iya rage adadin resin epoxy da rage farashi. Ana iya amfani da masu cikawa daban-daban don dalilai daban-daban. Ya kamata ya zama ƙasa da raga 100, kuma yawan da ake buƙata ya dogara da aikace-aikacensa. Masu cikawa na yau da kullun sune kamar haka:

(1) Zaren asbestos da zaren gilashi: ƙara tauri da juriya ga tasiri;

(2) Foda mai siffar quartz, foda mai siffar porcelain, foda na ƙarfe, siminti, emery: ƙara tauri;

(3) Alumina da foda na porcelain: ƙara ƙarfin mannewa da ƙarfin injiniya;

(4) Garin Asbestos, garin silica gel da siminti mai zafi: inganta juriyar zafi;

(5) Garin asbestos, garin quartz da garin dutse: rage raguwar saurin raguwa;

(6) Foda na aluminum, foda na jan ƙarfe, foda na ƙarfe da sauran foda na ƙarfe: ƙara yawan watsawar zafi da watsawar zafi;

(7) Foda mai launin graphite, foda mai talc da foda mai siffar quartz: inganta aikin hana lalacewa da aikin shafawa;

(8) Emery da sauran goge-goge: inganta aikin hana sakawa;

(9) Foda Mica, foda na porcelain da foda na quartz: ƙara ƙarfin aikin kariya;

(10) Duk nau'ikan launuka da graphite: tare da launi;

Bugu da ƙari, bisa ga bayanai, adadin da ya dace (27-35%) na P, As, Sb, Bi, Ge, Sn da Pb oxides da aka ƙara a cikin resin na iya kiyaye mannewa a ƙarƙashin zafi mai zafi da matsin lamba.

6、Zaɓin Mai Rage Nauyi

Aikin mai narkewa shine rage danko da kuma inganta iskar resin. Ana iya raba shi zuwa rukuni biyu marasa aiki da masu aiki, kuma yawansa bai wuce kashi 30% ba. Abubuwan da ake amfani da su wajen mai narkewa sun hada da diglycidyl ether, polyglycidyl ether, propylene oxide butyl ether, propylene oxide phenyl ether, dicyclopropane ethyl ether, triethoxypropane propyl ether, inert diluent, xylene, toluene, acetone, da sauransu.

7、Bukatun Kayan Aiki

Kafin a ƙara maganin warkarwa, dole ne a duba duk kayan da aka yi amfani da su, kamar su resin, maganin warkarwa, cikawa, gyarawa, mai narkewa, da sauransu, waɗanda za su cika waɗannan buƙatu:

(1) Babu ruwa: ya kamata a fara busar da kayan da ke ɗauke da ruwa, kuma ya kamata a yi amfani da sinadarai masu ɗauke da ƙaramin adadin ruwa kaɗan gwargwadon iko.

(2) Tsafta: abubuwan da ke cikin ƙazanta banda ruwa ya kamata su zama ƙasa da 1%. Duk da cewa ana iya amfani da shi tare da ƙazanta 5%-25%, ya kamata a ƙara yawan sauran kayan a cikin dabarar. Ya fi kyau a yi amfani da matakin reagent a ƙaramin adadin.

(3) Wa'adin Inganci: Ya zama dole a san ko kayan ba su da inganci.