Olee igbari epoxy resin? Arụ ọrụ na epoxy resin

Okwu "epoxy" maara na ọ fọrọ nke nta onye ọ bụla. Ma epoxy resin, nke ngwa bụ nnọọ nkịtị taa, bụ ụdị sịntetik resin. Ọ pụtara na 50s. narị afọ gara aga na n'oge na-adịghị nweela ewu ewu ekele ya vasatail Njirimara.

Taa, epoxy resins na-eji na ulo oru mmepụta na ezinụlọ ya. Ekwe Omume ngwa na-mgbe niile na-ịgbasa n'ihi na mmepe nke formulations na mma e ji mara.

Description epoxy

Dị ka chemical mejupụtara nke epoxy resin - a sịntetik compound oligomeric. Ndị a ihe ndị na ina na fọrọ nke nta niile na ngalaba nke ụlọ ọrụ. The free ụdị epoxy na-eji, ma na njikọ na a ime gị n'ụlọnga ọ pụrụ igosipụta pụrụ iche Njirimara mgbe polymerization mmeghachi omume. Ọ bụrụ na ndị epoxy resin ime mmadụ jikọọ na, ọ pụrụ ime:

• ike, siri ike ihe;
• Soft na inogide ngwaahịa;
• roba-dị ka ihe.

Epoxy resins na-eguzogide ọgwụ ndị na-esonụ bekee:

• halogens;
• acid;
• alkalis.

Otú ọ dị, mgbasa n'akparamagwa esters na acetone enweghị film guzobere. Mgbe gwọrọ ndị epoxy resin mejupụtara anaghị emit ya volatiles na shrinkage bụ negligible.

Karịsịa epoxy resin ozuzu

Ọ bụrụ na ị na-eche banyere otú igbari epoxy, i kwesịrị ịma na enweghị ma ọ bụ ngafe nke na-agwọ gị n'ụlọnga ke mejupụtara pụrụ imetụta àgwà nke polima, mgbe fọdụrụ eguzogide okpomọkụ, ma ike ya na-ebelata, ikike ịgbagha Chemicals na mmiri na-echekwa . Ọ bụrụ na ndị hardener na-kwukwara na-ezughi oke ego, isiokwu nwere ike nnyapade n'ihi na unbound resin.

Tupu itughari na epoxy resin, ọ dị mkpa ịghọta na ngafe free hardener a tọhapụrụ na polima elu n'oge ọrụ. N'ihi na dị iche iche ogige pụrụ ịgwọ akụrụngwa na resin na-eji dị iche iche n'ike-n'ike, a pụrụ ịchọta akwụkwọ ntuziaka. Mgbe ọ na-abịa oge a ogige, ndị ruru bụ ndị akacha dị ka ndị a: 1 2 ma ọ bụ 1: 1.

Aro maka ozuzu nke epoxy resin

Iji ụbọchị, ọ na-kweere na mgbe e ji hardener na olu karịa ndị norm mmeghachi omume polymerization emee ngwa ngwa. Nke a echiche nwere ike na-atụle na-eduhie eduhie. Ihe kacha ụzọ na adị usoro bụ dịkwuo okpomọkụ nke mmeghachi omume ngwakọta.

Ọ bụrụ na ị chọrọ-adị n'elu usoro ugboro atọ, okpomọkụ ga-amụba na 10 Celsius C. Ọ bụrụ na ị na-akpalite ajụjụ nke otú igbari epoxy, unu mara na taa na-mara ọpụrụiche ogige, nke ikwọ nwere bụla. accelerators. Ọ pụrụ ịchọta na ire, na epoxy ogige mee na ala okpomọkụ. Pịnye na-agwọ gị n'ụlọnga na ọnọdụ okpomọkụ nke ngwakọta eme omume dị ka isi ihe na-emetụta ọnụego polymerization.

Stud epoxy resin: ikwọ na dị iche iche polymerization okpomọkụ

The epoxy resin nwere ike gwọrọ na okpomọkụ sitere na site -10 ka +200 ° C, ọ ga-adabere na dịgasị iche iche na-eji mejupụtara. Iji ụbọchị, mara resins maka na-ekpo ọkụ na oyi na-atụ ime. Oyi na-atụ ụdị hardener na epoxy resin ọtụtụ ugboro ugboro eji na-adị kwa ụbọchị ndụ. Izute ndị dị otú ahụ a mejupụtara nwere ike ịbụ na ọnọdụ nke rụpụta na ala ike, na ebe okpomọkụ omume bụ adịghị anakwere.

Iji nweta elu ike na ngwaahịa na-enwe ike idi elu ibu na okpomọkụ, dị ka nke ọma dị ka n'ebe ọgwụ, na-eji na-ekpo ọkụ ime ụdị akụrụngwa. oké ntupu ụmụ irighiri kpụrụ n'oge na-ekpo ọkụ polymerization. Ọzọkwa, e nwere mebere na ha oxides nke na-enwe ike polymerize na oké osimiri na mmiri na na iru mmiri ọnọdụ.

nọ nke ngwa

Epoxy ihe na-ekesa taa gburugburu ụwa, ha na-mara ebe ọ bụ n'etiti narị afọ gara aga. Ọdịdị nke ihe ndị a ihe na-adịbeghị anya agbanweela ịrịba mgbanwe, ma were bụ omenala na ọtụtụ ebe, n'etiti ha:

• impregnated iko eriri na iko eriri;
• mkpuchi maka waterproofing;
• kere eke nke chemical-eguzogide coatings;
• mmepụta nke uzo siri ike ihe n'ihi na faiba glaasi ngwaahịa.

Epoxy resin, ojiji nke nke dị ugbu a na-ahụkarị, nwere ike na-eme ka ihe impregnating gị n'ụlọnga maka bonding mmiri na eletriki, akpakanamde, ụgbọelu ubi, ngwá electronic na ụlọ ọrụ. Na nke a, ihe ndị mejupụtara na-eji na mmepụta nke faiba glaasi na n'ibu injinịa na shipbuilding, ewu, mmezi ogbako ọnọdụ ụgbọala ahụ ihe na ụgbọ mmiri hulls.

Arụ ọrụ na epoxy resin a rụrụ ebe e nwere mkpa maka akara mgbidi na ala nke n'okpuru ala na ọdọ mmiri. Iji nwere ike mere nke epoxy resin ihe na ágbá maka mputa na n'ime ime mma nke ụlọ, nakwa dị ka impregnation, nke ga-enye waterproofing porous ihe na ha na ụba ike, ha kwesịrị ekenyela n'etiti osisi na ihe.

maka ndekọ

The epoxy resin nwere ike na-etolite ndabere nke uzo siri ike ihe, nke a rụrụ site n'ife n'ime a ebu. Na ọzọ ogbo nke ngwaahịa esichara site n'ibu ụzọ, dị ka: egweri na ọnwụ. Eji maka faiba glaasi ngwaahịa ke imewe ọrụ, ngwá electronic ụlọ ọrụ, na-ewu na ezinụlọ ya.

Arụ ọrụ na epoxy: n'elu nkwadebe

Arụ ọrụ na epoxy agụnye mkpa elu nkwadebe tupu ngwa nke mejupụtara. Ọ bụ mgbe ahụ ga-enwe ike iji nweta elu adhesion. Ya mere, tupu igbari epoxy resin, mbụ kwadebe elu. Iji malite a isi degreasing. N'elu kwesịrị metụtara nke mmanụ na griiz. The n'elu na-kpochara eji a mgbaze ma ọ bụ omo irè. Ọ dị mkpa iji nyochaa na-anọghị nke gloss.

Nke elu oyi akwa e wepụrụ-egweri. Obere na-ebupụta ga-akwadebe site n'aka, iji sandpaper na-a. Nnukwu na isi ebe edozi egweri igwe, na n'ihi na ájá ga-ewepụ na a agụụ Cleaner. Mgbe n'ichepụta faiba glaasi ma ọ bụ ịdọ epoxy onwe-leveling ala, varnishes na-enye nkọwa ọ bụla ụdi mkpuchi ga-etinyere na n'ụzọ zuru ezu sikwuo ike, ka na-nnyapade gara aga oyi akwa.

Ọ bụrụ na ndị nkà na ụzụ na ihe ndị a chọrọ ka okokụre ngwaahịa ikike, na ala oyi akwa, nke na-eme ka a mkpụrụ, ga-obere akụkụ fesa ájá. Mgbe Jizọs gwọchara ngafe ájá ga-mkpa iji wepụ ma na-eme ọhụrụ oyi akwa nke epoxy.

Kwadebe a nnukwu ego nke epoxy resin

Ọ bụrụ na ị na-amaghị kpọmkwem Njirimara nke epoxy resin, mgbe ahụ ị na-ezute nsogbu ke imewe nke ihe na nnukwu. Na-amụba ibu epoxy, a nnukwu ego nke okpomọkụ. Esi resin ụfụfụ ga-dull ọcha. Nke a mejupụtara ike-atụle kwesịrị ekwesị maka. diluents na solvents nwere ike kwukwara na belata viscosity na resin. Ọbụna obere kasịnụ nwere ike ime ka a ọnụ ke ike na okpomọkụ na-eguzogide nke ngwaahịa. Ihe na-aghọ exudation nke diluent si polima, nke na-eduga ná Ihere ihe.

Epoxy resins na ime mmadụ adịghị nwere mmiri. Ọ bụrụ na nke a mere, mgbe ahụ, ndị mejupụtara na-aghọ turbid na tụfuru ya Njirimara. Taa tọhapụrụ mmiri epoxy. Dị otú ahụ ikwọ na bred na distilled mmiri iji nweta dispersion. Epoxy resin ga-weere na a plasticizer. Ihe ngwakọta a nwayọọ nwayọọ ụtọ bụ eziokwu mgbe eji DBP. N'itinye DEG-1 mejupụtara ga-agwakọta.

N'ihi ọma Ịgwakọta ga-eji akuakuzinwo pụrụ iche nozulu owuwu ma ọ bụ a igwekota. Otosịrị iru nke resin na plasticizer na-ahọrọ na-adabere chọrọ ductility, ma ọtụtụ mgbe nkezi nke plasticizer àmà site 5 na 10%. The ngwakọta e kwukwara na hardener. The resin na-mma ka +30 Celsius C, iji gbochie mmiri ịgbọ agbọ. Standard nkezi nke resin na hardener-egosi dị ka 1 10. Iji nweta edo mgbasa hardener kwesịrị ịgba mbọ hụ agwakọta. Ma ọ bụghị ya, ihe ndị mejupụtara ga heterogeneous, na mgbe e mesịrị ga Ọsụsọ.

resin Crafts

Ọtụtụ mgbe nna ukwu mee isiokwu si epoxy resins. Ọrụ ndị a na-ebu ụfọdụ ihe isi ike. Ngwaahịa kwesịrị nwere uzo nime ya kwesịrị ikuku egosipụta. The thicker, na-agwọkwa n'elu ga-edo. Ọ bụrụ na ọkpụrụkpụ bụ n'elu 2 mm, ihe na-etinyere mgbe isi n'ígwé nke polymerization. The resin nwere ike wụsara n'ime iche-iche. Na ngwaahịa iche, ụdị tee na mmanụ ala jelii ma ọ bụ griiz.

E ji esiji ákwà maka epoxy resin ga-eme ka ngwaahịa na agba. Mgbe mmezu nke ngwaahịa na-nọgidere na-enwe na okpomọkụ ubé n'elu ụlọ okpomọkụ. Mgbe 3 chasa abịa isi polymerization bụla. tupu detachment, mgbe ngwaahịa nwere na-ụtọ mee ngwangwa e bụla. usoro maka 6 awa. Ọ bụrụ na ị na-ekpebi ịrụ crafts mere nke epoxy resin, mgbe ahụ, ọ gaghị enwe ike iji a pụrụ iche kabinet oven.

Na ụlọ okpomọkụ na polymerization ga-adịru izu 2. Ọ bụrụ na ndị Efrata kwukwara triethylenetetramine, n'elu nwere ike ịnọgide na nnyapade. Igba ngwaahịa na-eme n'ọdịnihu ga-machined. Epoxy resin anụ ụlọ mmepụta bụ bụghị dị ka kwesịrị ekwesị n'ihi na nkedo nke oke na ngwaahịa, n'ihi na ọ bụ dị iche iche ime mkpumkpu ọkpụrụkpụ.

Na-eme ka agba epoxy resin

Dai maka epoxy resin ga-enye n'ụlọ mejupụtara, na-ese na a kpọmkwem na agba. Iji hụ na a edo nkesa nke ink emepụta iji ọtụtụ iri surfactants. Pigmentation nwere ike ibelata nghọta nke resin, mgbe ụfọdụ, ọ na-agbanwe agba, pitch ọchịchịrị. Agbakwunye ink na mkpali ga-rụrụ ma mgbe na mgbakwunye na nke wax.

Nka na ụzụ e ji mara nke epoxy resin mejupụtara nke Nlereanya akara ED-20

Epoxy resin, àgwà nke ga-depụtara n'okpuru, na-anọchite anya a na mmanụ aṅụ na-dị ka acha mmiri mmiri nke na-ngwa ngwa acha. Njupụta na 20 ° C ihere bụ a ịgba 1,16-1,25 n'arọ / m ^3. Ike ọdụdọ bụ 40-90 MPa. Flexural ike Ẹkot 80-140 MPa. Compressive ike bụ 100-200 MPa.

The polymerization okpomọkụ bụ 20 ° C na n'elu. Ọ bụrụ na ị nwere mmasị na epoxy resin, otosịrị iru nke ngwakọta mgbe jikọtara na hardener kwesịrị inwe mmasị. Nke ikpeazụ a ga-eji na-ego nke 7 akụkụ, mgbe resin na-kwukwara na ego nke 1 akụkụ. The polymerization oge bụ 1.5 awa mejupụtara. Water absorption mgbe awa 24 bụ hà ịgba nke 0.01-0.1%. Okpomọkụ na-eguzogide àmà site 55 ka 170 Celsius C. Mmetụta ike 5-25 King James Version / m ^2.

Key Njirimara nke epoxy resin

Tupu anyị eleba ajụjụ nke ebe ịzụta epoxy, unu mara ya isi Njirimara. Tinyere ihe ndị ọzọ ga-igbunye ala iguzogide cracking, nakwa dị ka ihe ọkpụrụkpụ toxicity ka tụnyere na acrylic resins. Njirimara nke epoxy resin na-egosi na ihe ndị mejupụtara nwere a elu viscosity, ọ ga-eji na njikọ na solvents. ngwakọta nwere ike kpụ ọkụ n'ọnụ, ma ọ bụ tinye a mgbaze Lower viscosity nke resin. N'ọnọdụ abụọ ahụ, na resin ga-aghọ ihe ọmụmụ. Ọ nwere ike na-etinyere site ahịhịa ma ọ bụ ala, na ọ ngwa ngwa impregnate faiba glaasi na banye n'ime porous n'elu dị ka osisi.

ọgwụgwụ

Ọtụtụ mgbe, na-eji ọkụ na-eche banyere ebe ịzụta epoxy resin. Taa, a na ihe onwunwe na-enye a dịgasị iche iche nke ụlọ ọrụ ndị ọzọ, a ga-mejupụtara ụlọ ahịa "Carbo" bụ nke dị na Moscow na Volgograd prospectus, 42.