Cov nplaum ntoo uas muaj cov nplaum siv nyob hauv peb lub neej. Raws li cov khoom sib txawv, nws tuaj yeem faib ua tsiaj kua nplaum, cov kua nplaum kua thiab cov ntxhia kua nplaum. Cov tsiaj lo kua nplaum suav nrog kua nplaum, pob txha kua nplaum, pobxias, foob pob ntseg, nplooj nplaum, cov zais zis ntses, thiab lwm yam; Zaub nplaum xws li cov hmoov txhuv nplej siab, dextrin, rosin, cov roj hmab Arabic, cov roj hmab muaj ntuj, thiab lwm yam .; Cov ntxhia kua nplaum nrog cov ntxhia hauv av, asphalt tos. Vim nws cov peev txheej ntau thiab cov nqi qis thiab cov tshuaj lom tsawg, nws yog dav siv nyob rau hauv cov rooj tog, bookbinding, ntim khoom thiab Handicraft ua.
hmoov txhuv nplej siab nplaum
Tom qab cov hmoov txhuv nplej siab nkag rau xyoo pua 21st, qhov ua tau zoo ib puag ncig ntawm cov khoom yuav dhau los ua cov khoom loj ntawm cov khoom siv tshiab. Cov hmoov txhuv nplej siab yog cov tsis muaj tshuaj lom, tsis muaj zog, tus nqi qis, biodegradable thiab ib puag ncig tus phooj ywg txuas ntxiv mus txuas ntxiv. Nws yog dav siv nyob rau hauv ntau yam kev lag luam. Tshwj xeeb tshaj yog nyob rau hauv xyoo tsis ntev los no, lub ntiaj teb cov nplaum muaj cov khoom lag luam ntau lawm, tus nqi qis, muaj pes tsawg lub viscosity thiab muaj kuab tshuaj.
Ua ib hom ntsuab kev tiv thaiv cov khoom lag luam, cov hmoov txhuv nplej siab tau nyiam cov xim dav dav thiab kev saib xyuas zoo hauv kev lag luam nplaum. Raws li cov ntawv thov thiab kev loj hlob ntawm cov hmoov txhuv nplej siab, lub zeem muag ntawm cov hmoov txhuv nplej siab oxidized los ntawm cov hmoov txhuv nplej siab, thiab cov kev tshawb fawb thiab cov ntawv thov yog feem ntau.
Tsis ntev los no, cov hmoov txhuv nplej siab ua cov nplaum muaj nyob hauv cov ntawv thiab cov ntawv sau, sau npe, cov hnab ntawv ci, cov ntawv ntim, muaj ntau txheej hnab tsev, thiab lwm yam.
Ob peb cov hmoov txhuv nplej siab cov nplaum tau qhia hauv qab no:
Oxidized starch nplaum nplaum
Lub gelatinizer npaj los ntawm kev sib xyaw ntawm hloov cov hmoov txhuv nplej siab nrog cov pab pawg aldehyde muaj cov cua sov lossis gelatin Tom qab cov hmoov txhuv nplej siab yog oxidized, oxidized starch nrog dej solubility, wettability thiab cov nplaum yog tsim.
Tus nqi ntawm oxidant yog me me, cov qib ntawm oxidation yog qhov tsis txaus, tus qauv viscosity txo, cov xim tsis zoo, cov xim tsis zoo. Nws muaj ib qho kev cuam tshuam zoo ntawm acidity, pob tshab thiab hydroxyl cov ntsiab lus ntawm cov nplaum.
Nrog rau lub sijhawm ntev ntawm cov tshuaj tiv thaiv lub sijhawm, cov ntsiab lus ntawm cov pab pawg carboxyl kev nce zuj zus, tab sis cov pob tshab tau zoo dua thiab zoo dua.
Cov neeg estrerified starch nplaum
Cov neeg siv hluav taws xob uas yog cov hmoov txhuv nplej siab ua ke nrog cov pab pawg ua haujlwm ntawm cov av hydroxules Vim yog ib feem cross-sib txuas ntawm cov khoom siv eserical, yog li cov khoom siv hluav taws xob tau zoo dua, thiab cov nplaum txheej txheem tuaj yeem tiv thaiv cov txheej txheem siab thiab qis thiab hloov pauv hloov mus.
Cov hmoov txhuv nplej siab nplaum nplaum nplaum nplaum nplaum
Grafting ntawm cov hmoov txhuv nplej siab yog siv cov qauv siv lub cev thiab tshuaj lom neeg ua rau cov hmoov txhuv nplej siab Ib sab saw muaj cov polymer monomers yog tsim tawm ntawm cov hmoov txhuv nplej siab saw.
Noj kom zoo dua ntawm cov yeeb yam uas ob leeg polyethylene thiab cov hmoov txhuv nplej siab, uas cov hmoov txhuv nplej siab, yog li ntawd cov hmoov txhuv nplej siab muaj ntau dua Zoo nplaum nplaum, fellity thiab anti-khov cov khoom.
Vim tias cov hmoov txhuv nplej siab yog cov nplaum polymer polymer, nws tsis muaj tshuaj lom thiab tsis muaj kuab paug, yog li nws tau tshawb fawb dav thiab thov. Tsis ntev los no, cov hmoov txhuv nplej siab yog siv hauv ntawv, paj rwb ntaub, hnab ntawv, cov ntawv cim, thiab corrugated cardboard.
Cellulose adhesive
Cellulose ether derivatives siv tau cov nplaum muaj xws li cov cellulose, cov dej cellulose, cov dej ntawm cov tshuaj tua kab mob kasmuligle, cov dej tsis muaj ecklose alkyl ether ether.
Nws muaj cov tshuaj ruaj khov zoo, muaj zog alkali tsis kam, zoo hluav taws xob rwb thaiv tsev thiab muaj cov yam ntxwv ntawm kev tswj lub zog thiab yoog raws siab thiab kub tsawg. Nws yog yooj yim tau tshaj nrog cov ciab, cob, tshuab yas, thiab lwm yam, raws li ntawv, roj hmab, tawv, cov nplaum, cov nplaum, cov nplaum, cov nplaum, cov nplaum, cov nplaum, cov nplaum.
Methyl Cellulose (CMC): Ionic cellulose ether. Hauv kev lag luam textile, cmc feem ntau siv los hloov cov hmoov txhuv nplej siab zoo ua tus sawv cev ntawm cov ntaub. Textiles coated nrog CMC tuaj yeem nce qhov muag muag thiab zoo siab txhim kho cov tshuab luam ntawv thiab zowing khoom. 'Hauv kev lag luam khoom noj khoom haus, ntau yam ntawm cov zaub mov ua kas fes ntxiv nrog CMC muaj cov duab zoo stability, yooj yim rau xim, thiab tsis yooj yim kom muag. Raws li cov nplaum, nws yog siv los ua cov nplaig, cov thawv ntawv, hnab ntawv hnab, wallpaper thiab khoom cuav.
Cellulose EsterDerivatives: Feem ntau nitrocellulose thiab cellulose acetate. Nitrocellulose: tseem hu ua cellulose nitrate, nws cov nitrogen cov ntsiab lus yog feem ntau ntawm 10% thiab 14% vim muaj qib sib txawv ntawm kev siv hluav taws xob sib txawv.
Cov ntsiab lus ntau yog feem ntau yog hu ua hluav taws xob paj rwb, uas tau siv hauv kev tsim cov khoom siv tsis zoo thiab colloidal phom. Cov ntsiab lus qis yog feem ntau hu ua collodion. Nws yog insoluble hauv dej, tab sis soluble hauv kev sib xyaw ntawm ethyl cawv thiab ether, thiab kev daws teeb meem yog colodion. Vim tias kev siv plab zom mov evapmentates thiab cov zaj duab xis tawv, nws feem ntau siv rau lub raj mis kaw, ua rau lub zog tiv thaiv thiab lub cellenoid hauv keeb kwm yas hauv keeb kwm.
Yog tias tus nqi tsim nyog ntawm Alkyd Resin yog ntxiv raws li kev hloov kho thiab muaj txiaj ntsig zoo ntawm kev ua kom nruj thiab cov ntaub, tawv, hlau thiab ceramics.
Cellulose acetate: tseem hu ua cellulose acetate. Nyob rau hauv lub xub ntiag ntawm sulfuric acid catalyst, yog acetated nrog kev sib xyaw ntawm acetic acid thiab eticanol, thiab tom qab ntawd cov khoom ua si acidet acid tau ntxiv rau cov khoom siv yam uas xav tau.
Piv nrog nitrocellulose, cellulose acetate tuaj yeem siv los ua cov kuab tshuaj kom nruj rau cov khoom lag luam yas xws li tsom iav thiab khoom ua si. Piv nrog cellulose nitrate, nws muaj zoo viscosity tsis kam thiab ruaj, tab sis muaj cov kua qaub tsis zoo, noo noo tsis kam thiab huab cua tsis kam.
Cov kua nplaum protein
Cov nplaum muaj protein yog ib hom ntawm cov nplaum muaj protein uas muaj protein uas muaj cov khoom siv raw. Cov nplaum muaj peev xwm ua tau los ntawm cov tsiaj protein thiab cov protein. Raws li cov protein siv, nws tau muab faib ua cov tsiaj protein (fen kua nplaum, gelatin, complex protein kua nplaum, thiab albumin) thiab zaub ntsuab (taum pauv). Lawv feem ntau muaj kev cog lus siab kom nruj thaum qhuav thiab siv nyob rau hauv rooj tog kom raug thiab ntoo khoom. Txawm li cas los xij, nws cov cua sov tsis kam thiab dej tsis kam yog neeg tsis zoo, ntawm cov tsiaj protein uas muaj protein uas yog tseem ceeb dua.
Soy protein kua nplaum: tsis yog tsuas yog ib qho tseem ceeb zaub mov cov khoom siv, tab sis kuj tseem muaj ntau cov ntawv thov hauv cov zaub mov tsis yog khoom noj. Tsim los ntawm cov kua nplaum muaj protein protein, thaum ntxov li 1923, Johnson thov rau patent rau cov kua muag protein protein.
Xyoo 1930, cov taum pauv ua protein phenolic resin board addision (dupont loj faib (dupont loj siv vim muaj ntau tus nqi tsim nyog.
Nyob rau hauv cov decades tsis ntev los no, vim muaj kev nthuav dav ntawm cov khoom siv roj av thiab cov khoom muaj kuab paug rau ib puag ncig, uas ua rau cov khoom lag luam muaj protein ntau dua los ua cov kev tshawb fawb.
Soybean nplaum yog tsis-lom, tsis yooj yim siv, tab sis muaj dej tsis zoo. Ntxiv 0.1% ~ 1.0% (Mass) ntawm cross-txuas cov neeg sawv cev, thiab ua cov nplaum rau cov ntoo uas yog cov ntoo thiab cov plywood ntau lawm.
Tsiaj protein nyomrues: Tsiaj Glues tau siv dav nyob rau hauv cov rooj tog thiab kev ua ntoo ua haujlwm. Cov khoom lag luam feem ntau suav nrog cov rooj tog xws li cov rooj zaum ua ke xws li cov rooj zaum, cov rooj, cov qauv, khoom ua si, cov khoom ua si, cov khoom ua si, ntaus pob ncaws pob thiab cov deckers.
Newer kua tsiaj glues nrog cov khib nyiab cov ntsiab lus ntawm 50 Cov nplaum me me thiab nruab nrab xav tau lub sijhawm rau cov kua nplaum.
Cov tsiaj nplaum yog cov hom nplaum ntawm cov nplaum siv hauv cov nplaum nplaum nplaum. Cov Tapes no tuaj yeem siv rau cov hnab ntim khoom siv lub teeb ua ke zoo li cov khoom siv thauj khoom thiab ntim cov haujlwm nrawm nrawm dua.
Nyob rau lub sijhawm no, cov pob txha loj yog cov tawv nqaij loj, thiab cov tawv nqaij nplaum feem ntau siv nyob ib leeg lossis ua ke nrog cov pob txha sib xyaw. Raws li cov txheej txheem online, cov nplaum siv yog cov ntsiab lus ntawm cov ntsiab lus ntawm 50%, thiab tuaj yeem sib xyaw nrog cov kua nplaum qhuav, nrog rau cov me me ntawm cov neeg ntub dej, tshuab yas, gel inhibitor (thaum tsim nyog).
Adhesive (60 ~ 63 ℃) feem ntau yog tov nrog cov xim pleev xim rau daim ntawv tom qab, thiab cov nyiaj tau los yog feem ntau 25% ntawm cov loj ntawm cov ntawv puag. Ntub daim kab xev ntub tuaj yeem qhuav nyob rau hauv qhov nro uas muaj cov pa hluav taws xob nrog cov pa hluav taws xob kom huv.
Tsis tas li ntawd, cov ntawv thov tsiaj muaj xws li kev tsim cov xuab zeb thiab cov ntaube abrasives, sizing absiles thiab cov ntawv nyeem, thiab cov ntawv xov xwm.
Tannin Adhesive
Tannin yog ib pawg neeg organic muaj polyphenol pawg, dav tam sim no nyob rau hauv lub qia, cov tawv ntoo, keeb kwm, nplooj thiab txiv ntoo ntawm cov nroj tsuag. Feem ntau los ntawm cov ntoo ua cov tawv ntoo thiab cov nroj tsuag muaj cov ntsiab lus tannin ntau. Lub tannin, formaldehyde thiab dej xyaw thiab rhuab kom tau txais tannin cob muaj, tom qab ntawd tus muab tub lim rau ntxiv, thiab cov tannin nplaum tau txais los ntawm stirring tusyees.
Tannin nplaum tau zoo tsis kam rau cua sov thiab vaum kev laus, thiab kev ua haujlwm ntawm gluing ntoo yog zoo li ntawm Pherrolic nplaum. Nws yog tsuas yog siv rau cov ntoo ci, thiab lwm yam.
txos adhesive
Lignin yog ib qho ntawm cov khoom siv tseem ceeb ntawm cov ntoo, thiab nws cov ntsiab lus tseem ceeb rau txog 20-40% ntawm cov ntoo, thib ob tsuas yog rau cellulose. Nws yog qhov nyuaj rau rho tawm lignin ncaj qha los ntawm cov ntoo, thiab cov khoom tseem ceeb yog pulp pov tseg ua kua, uas yog tsis tshua muaj kev nplua nuj nyob rau hauv cov peev txheej.
Lignin tsis yog siv los ua cov nplaum ib leeg, tab sis ib phenolic resin polymer tau los ntawm kev ua ntawm cov pab pawg phenolic ntawm lignm thiab formaldehyde ua cov nplaum. Txhawm rau txhim kho cov dej tsis kam, nws tuaj yeem siv ua ke nrog lub nplhaib isopropane epoxy epoxy epoxy isocyanate, ruam phenol, resorcinol thiab lwm yam sib txuas. Qosin Adhesives yog tsuas yog siv rau kev sib txuas lus plywood thiab particleboard. Txawm li cas los xij, nws viscosity yog siab thiab cov xim sib sib zog nqus, thiab tom qab kev txhim kho, cov qauv ntawm daim ntawv thov tuaj yeem nthuav tawm.
Arabic pos hniav
Cov pos hniav Arabic, tseem hu ua Acabia cov pos hniav, yog kev exudate los ntawm cov tsiaj qus locust tsev neeg tsob ntoo. Muaj npe vim yog nws cov khoom lag luam nyob hauv Arab lub teb chaws. Cov pos hniav Arabic feem ntau yog suav nrog txo cov roj av hnyav polysaccharides thiab hnyav dua molecia hnyav acacia acecoproteins. Vim yog cov dej ua kom zoo ntawm cov pos hniav Arabic, cov qauv yog qhov yooj yim heev, uas yuav tsum tsis txhob sov los tsis ua kom sov. Cov ntawm cov pos hniav dries sai sai. Nws tuaj yeem siv rau Bondical lenses, gluing nyiaj muas, pasting cov cim lag luam, cov khoom noj ntim khoom thiab luam tawm thiab cuam tshuam cov neeg ua haujlwm.
Inorganic Adhesive
Adhesives tsim nrog inorganic tshuaj, xws li phosphates, phosphates, sulfates, boron ntsev, thiab lwm yam. Nws cov yam ntxwv:
(1) Kev kub siab tsis taus, tuaj yeem tiv taus 1000 ℃ lossis siab dua kub:
(2) Kev laus tiv thaiv kev laus zog:
(3) Me vais
(4) loj brittleness. Elastic maculus yog ib qho kev txiav txim ko taw siab dua li cov organic nplaum:
(5) Cov dej tsis kam, acid thiab alkali tsis zoo yog cov neeg pluag.
Koj puas paub? Cov nplaum muaj lwm yam kev siv dhau ntawm cov ntawv nplaum.
Anti-corrosion: Cov kav dej chret ntawm cov nkoj feem ntau yog them nrog cov dej ntws thermal thiab tshav kub, uas tau tsim tawm ntawm phab ntsa sab nraud; Thiab cov kav dej tso tawm tau muaj qhov kub ntev ntev rau lub sijhawm ntev, soluble solts lub luag haujlwm ntawm cov phab ntsa sab nraud yog loj heev.
Txog rau qhov kawg no, dej iav series yuav siv tau los txheej cov ntaub ntawv nyob rau hauv qab txheej ntawm txhuas kev ua kom zoo nkauj nrog cov qauv ua kom zoo nkauj. Hauv kev teeb tsa tshuab, cov khoom siv yog feem ntau bolted. Ntev ntev raug cua rau cov cua rau cov khoom siv bolted tuaj yeem ua rau cov pob txha corrosion. Nyob rau hauv cov txheej txheem ntawm kev kho tshuab ua haujlwm, qee zaum cov bolts poob vim yog rau kev co kom loj.
Txhawm rau daws cov teeb meem no, cov khoom sib txuas tau sib txuas nrog inorganic cov nplaum nyob rau hauv cov tshuab ua tshuab, thiab tom qab ntawd txuas nrog bolts. Qhov no tsis tuaj yeem tsuas yog ua lub luag haujlwm hauv lub zog, tab sis kuj ua lub luag haujlwm hauv kev tiv thaiv corrosion.
Biomedical: Qhov muaj pes tsawg leeg ntawm cov khoom siv hydroxyapatite bioceramic yog ze rau cov inorganic sib xyaw nrog pob txha, thiab yog cov khoom siv tawv tawv hloov.
Txawm li cas los xij, cov dav dav dav dav modulus ntawm cov kev npaj ha kev cog lus yog siab thiab lub zog yog tsawg, thiab kev ua tsis zoo. Phosphate iav nplaum yog xaiv, thiab cov khoom siv woos ua ke ntawm qhov kev ua ntawm cov nplaum, yog li rho tawm cov modulity elastic thiab kom ntseeg tau cov khoom siv.
Cohesion thev naus lausmologies Ltd. Tshaj tawm tias lawv tau tsim lub cite cueeal uas tuaj yeem siv rau kev kho mob plawv thiab tau ua tiav cov kev kho kom tiav. Los ntawm kev sib piv kev sib piv ntawm 21 qhov kev phais mob plawv nyob hauv Tebchaws Europe, nws tau pom tias kev siv cov chaw ci phais mob siab tau txo cov adhesions kev phais piv nrog lwm txoj hauv kev. Tom ntej cov kev tshawb fawb hauv chaw kuaj mob uas pom tias lub coseal sealant muaj peev xwm muaj peev xwm loj hauv lub plawv, gynecological thiab mob plab.
Daim ntawv thov cov nplaum hauv cov tshuaj yog hu ua qhov kev loj hlob tshiab hauv kev lag luam nplaum. Cov kua nplaum tsim muaj cov epoxy cob qhia lossis tsis muaj cai polyester.
Hauv kev tiv thaiv thev naus laus zis: stealth submarines yog ib qho ntawm cov cim ntawm lub tswv yim tshiab ntawm cov cuab yeej naval. Ib txoj hauv kev tseem ceeb ntawm submarine stealth yog los tso cov suab nrov-nqus cov vuas ntawm lub plhaub pob zeb submarine. Lub suab-nqus cov pobzeb yog hom roj hmab nrog cov khoom siv suab nrov.
Txhawm rau kom paub cov lag luam ruaj khov ntawm cov muffler nplais thiab cov hlau phaj ntawm lub nkoj phab ntsa, nws yog ib qho tsim nyog yuav tsum cia siab rau cov nplaum. Siv nyob rau hauv cov tub rog teb: Kev Txij Nkawm, Tub Rog Nkoj Rooj Sib Tham, kev npaj cov ntaub ntawv pov thawj, kev ua phem ntawm kev ua phem.
Puas yog nws amazing? Tsis txhob saib peb cov nplaum me ntsis, muaj kev paub ntau hauv nws.
Lub cev lub cev thiab tshuaj ntawm cov nplaum
Lub sijhawm ua haujlwm
Lub sijhawm siab tshaj plaws ntawm cov nplaum sib xyaw thiab ua ke ntawm seem kom tau sib raug zoo
Lub sijhawm kho thaum pib
Lub sij hawm los tshem tawm lub zog tso cai kom muaj zog txaus rau kev tuav daim ntawv cog lus, suav nrog kev txav mus los ntawm cov khoom noj
Puv sijhawm kho
Lub sij hawm yuav tsum ua kom tiav cov khoom siv neeg ua haujlwm kawg tom qab cov nplaum sib xyaw
lub sij hawm cia
Nyob rau hauv qee qhov kev mob, cov nplaum kuj tseem tuaj yeem tswj nws cov khoom tuav thiab lub sijhawm khaws cia ntawm lub zog tshwj xeeb
bond lub zog
Nyob rau hauv kev txiav txim ntawm sab nraud quab yuam, kev ntxhov siab yuav tsum ua rau lub interface ntawm cov nplaum thiab cov lus qhia nyob rau hauv cov nplaum nplaum tawg lossis ib puag ncig
Tawv muaj zog
Shear lub zog yog hais txog lub zog shear uas lub tsev sib raug zoo uas tuaj yeem tiv taus thaum cov chav tsev raug puas ntsoog, thiab nws chav nyob yog qhia hauv MPA (N / MM2)
Uneven rub-tawm lub zog
Cov khoom siv siab tshaj plaws uas cov sib koom tes uas tuaj yeem ua rau rub tawm ntawm ob lub zog lossis ib lub zog yog feem ntau yog ib qho ntev dua ib cheeb tsam, thiab chav ntsuas yog kn / m
Lub zog tensile
Lub zog tensile, tseem hu ua ib qho hluav taws xob rub tawm thiab lub zog tensile, yog hais txog lub zog tensile, yog hais txog ntawm kev quab yuam, thiab chav tsev yog qhia hauv MPA (N / MM2).
Tev lub zog
Tev lub zog yog qhov siab tshaj plaws thauj ib chav dav uas tuaj yeem tiv thaiv thaum muaj kev sib cais ua ntej, thiab nws chav nyob yog qhia hauv KN / M
Lub Sijhawm Post: Apr-25-2024