Tam sim no, koj yuav tsis xav tsis thoob rau leej twg nrog cov cuab yeej xws li cyanoacrylate thib ob kua nplaum, paub zoo dua rau cov neeg yuav khoom raws li superglue. Cov cuab yeej no yog siv los txuas cov khoom sib txawv (hlau, ntoo, iav, yas, thiab lwm yam.)
keeb kwm me ntsis
Cyanoacrylate kua nplaum tau tsim thaum Tsov Rog Ntiaj Teb Zaum Ob los ntawm Asmeskas tus kws tshawb fawb Harry Coover. Nws ua haujlwm rau lub tuam txhab Eastman Kodak lub koob yees duab. Hauv kev ua tsov ua rog, tus kws tshawb fawb tau tsim cov yas pob tshab uas tuaj yeem siv rau hauv qhov muag pom. Cov khoom uas tshwm sim tsis haum rau txoj haujlwm. Qhov no yog vim qhov hloov pauv ntawm cov khoom thaum cov dej noo nkag mus rau hauv: cov khoom ua nplaum.
Thiab tsuas yog tom qab ntau tshaj kaum xyoo, Coover pom tau tias cov khoom uas nws tau tsim tuaj yeem pab tau tib neeg. Nws yog thawj zaug siv los kho qhov txhab thaum Tsov Rog Nyab Laj.
Ib xyoos tom qab, cyanoacrylate kua nplaum tau qhia rau noob neej. Txij thaum ntawd los nwstseem nyob hauv kev xav tau ntawm cov neeg yuav khoom.
Tshuaj lom ntawm cov txheej txheem
Lub ntsiab lus ntawm cov kua nplaum yog cyanoacrylate, uas yog, cyanoacrylic acid ester. Nws cov nyiaj tuaj yeem ncav cuag 90-99% ntawm tag nrho cov khoom xyaw.
Plasticizers (txog 10%), thickeners, stabilizers, activators ntxiv rau ether. Ib qho tseem ceeb feature yog tias cov nplaum tsis muaj cov kuab tshuaj.
Cov txheej txheem kev sib txuas yog raws li cov tshuaj tiv thaiv ntawm anionic polymerization ntawm cyanoacrylate nrog cov tshuaj alkaline me ntsis (feem ntau dej). Nrog ib txheej nyias ntawm cov kua nplaum (txog 1 hli), cov av noo nyob rau hauv cov huab cua thiab ntawm qhov chaw yuav tsum tau glued yog txaus rau cov tshuaj tiv thaiv mus ntxiv. Nyob rau hauv kev cuam tshuam ntawm noo noo, stabilizer nyob rau hauv cov nplaum splits. Qhov no pib cov tshuaj tiv thaiv polymerization ntawm qhov chaw.
Qhov zoo tshaj plaws yog chav tsev kub thiab av noo ntawm 40-60%. Raws li cov xwm txheej no, qhov txiaj ntsig zoo tshaj plaws uas cyanoacrylate nplaum tuaj yeem muab tau tiav. Kev siv cov khoom ntawm cov av qis qis yuav ua rau lub sijhawm ziab kom qhuav. Cov av noo ntau dua yuav txo cov nyiaj tau zoo thiab lub zog.
Basic nta
Cyanoacrylate kua nplaum (nqi li ntawm 500 rubles ib 50 grams) yog cov khoom tsis muaj xim uas muaj ntxhiab tsw me ntsis uas ploj tom qab ziab. Muaj cov ntaub ntawv hauv qab no:
muaj tag nrho cov khib nyiab
Kab dawb
Viscosity yog kwv yees li 1.5 txhiab cps
Cov khoom tseem ceeb ntawm cov kua nplaum qhuav:
Resistant mus rau qhov kub siab (ntev cua sov mus txog 80 degrees lossis luv luv cua sov txog 100 degrees)
Muaj qhov kub thiab txias (txog li 20 degrees). Thaum qhov kub thiab txias, lub zog tensile txo qis
Cia dej rau ob peb lub lis piam
Resistant rau cov kuab tshuaj (acetone, cawv, roj av, roj av, cav roj) thiab tshuaj. Tsuas yog alkalis tuaj yeem cuam tshuam lub zog adhesion
Tuav 150-250kg/cm 3.
Scope of application
Cyanoacrylate kua nplaum feem ntau yog siv rau kev sib txuas ceev ntawm cov ntaub ntawv tsis ntxeem tau: rau mounting cov khoom ntawm cov khoom siv hauv xov tooj cua, roj hmab ntsaws rau hauv lub qhov rais (qhov rooj) qhib, fastening microcircuits, Circuit Court boards, harnesses, ib tug neeg qhov chaw ntawm lub rooj sib txoos hauv instrumentation.
Ib hom "superglue", octyl-2-cyanoacrylate, vim nws qhov ceev ceev thiab tsawg toxicity, yog siv rau hauv kev phais kom tsis txhob los ntshav thiab kua nplaum qhov txhab. Tsis ntev los no nws tau dhau los ua kua nplaum rau pob txha.
Nyob hauv lub neej txhua hnub, superglue yog siv los sau cov seams thiab tawg. Ua li no, nws yog ua ke nrog baking soda. Qhov sib tov sib xyaw ua kom tawv sai heev thiab zoo li yas.
Cyanoacrylate kua nplaum tuaj yeem suav tias yog kev kho mob thoob ntiaj teb. Nws yog siv nyob rau hauv tag nrho cov teb: tshuaj, khoom ua si kev lag luam, aircraft kev lag luam, automotive kev lag luam, khoom ua si thiab kho kom zoo nkauj kev lag luam,khau, khoom siv tu cev, kev lag luam tshaj tawm thiab lwm yam.
Siv
Qhov chaw yuav tsum tau sib koom yuav tsum tsis muaj hmoov av, xeb thiab roj stains. Cov cuab yeej yuav tsum nyob hauv chav sov li ib hnub. Tom qab ntawd, koj tuaj yeem siv cyanoacrylate kua nplaum. Ib qho activator yuav xav tau nyob rau hauv cov xwm txheej uas muaj qhov tsis zoo, txhawm rau npog qhov khoob loj. Nws tuaj yeem siv ob qho tib si ua ntej gluing (daim ntawv thov ntawm ib qho chaw) thiab tom qab (txhaj tshuaj rau cov nplaum).
Ntawm ib qho ntawm cov nplaum nplaum yog siv rau qhov tsawg kawg nkaus. Txhawm rau ua kom cov txheej txheem, koj tuaj yeem siv lub spatula yas. Ntawm thaj chaw loj, cov nplaum yog siv rau hauv tee. Tom ntej no, cov chaw txuas nrog thiab nruj nreem kaw.
Cov kua nplaum hardens ntawm chav tsev kub. Ntawm 20 degrees Celsius, nws tsuas siv ob peb feeb xwb. Cov txheej txheem no tuaj yeem nrawm dua yog tias muaj cov dej noo ntawm qhov chaw yuav tsum tau sib koom ua ke.
Cov kua nplaum "sib tw" hauv ob peb feeb xwb. Cov kua nplaum tag rau hauv ib hnub ntawm 20 degrees thiab huab cua av noo ntau dua 55%.
Kev nyab xeeb
Txhua txoj haujlwm cuam tshuam nrog kev siv cyanoacrylate nplaum yuav tsum tau ua sab nraum zoov. Kev ua haujlwm sab hauv tsev tsuas yog tso cai nrog kev tso cua tawm xwb.
Tsis txhob tso kua nplaum rau ntawm daim tawv nqaij, qhov muag, plab zom mov.
Cov kua nplaum qhuav hauv lub raj yuav tsum tsis txhob nyem tawm los ntawm kev quab yuam, txwv tsis pub lub dav hlau tswj tsis tau ntawm cov khoom yuav nkag mus rau hauv qhov muag. Nyob rau hauv tas li ntawd, lub spout yog ua tib zoo pierced nrog ib tug pin (nyiam dua kub).
"Glued" ntiv tes yuav tsum tsis txhob raug quab yuam los yog txiav nrog rab riam. Qhov no tsuas yog ua rau daim tawv nqaij puas. Rau cov xwm txheej zoo li no, siv acetone (lossis tus neeg sawv cev zoo sib xws) siv rau daim ntaub so ntswg. Acetone yuav soften cov kua nplaum, tab sis tsis tam sim ntawd. Qhov no yuav siv sij hawm me ntsis (mus txog ib teev nyob rau hauv cov xwm txheej nyuaj).
Nws yog txwv tsis pub hnav khaub ncaws paj rwb (xws li hnab looj tes) thaum ua haujlwm nrog kua nplaum. Thaum cov nplaum los rau hauv kev sib cuag nrog cellulose ntawm cov ntaub, cov tshuaj tiv thaiv tshwm sim nrog kev tso tawm ntawm cov cua kub ntau. Qhov no yuav ua rau kub hnyiab.
