Sib tov lub taub hau ntawm cov khoom siv polyurethane elastomer: nplawm sib tov, sib tov sib npaug.Siv hom tshiab txhaj tshuaj valve, lub tshuab nqus tsev kawm ntawv yog qhov zoo los xyuas kom meej tias cov khoom tsis muaj macroscopic npuas.Xim muab tshuaj ntxiv tuaj yeem ntxiv.Lub taub hau sib xyaw muaj ib tus maub los rau kev ua haujlwm yooj yim.Cheebtsam cia thiab tswj qhov kub thiab txias: Jacket style tank nrog qhov pom kev ntsuas ntsuas.Cov ntsuas ntsuas digital yog siv rau kev tswj lub siab thiab cov yam ntxwv / qhov ntsuas qhov tsawg kawg nkaus.Resistive heaters yog siv rau kev tswj qhov kub thiab txias.Lub tank yog nruab nrog stirrer kom sib tov cov khoom sib npaug.

Cov cuab yeej siv ntawmCov khoom siv polyurethane elastomerntau lawm:

1. Semi-rigid self-skin foaming: siv nyob rau hauv ntau yam rooj tog accessories, board lub rooj zaum armrests, neeg nrog caij tsheb rooj armrests, massage dab da dej hauv ncoo, dab da dej armrests, dab da dej backrests, dab da dej lub rooj zaum cushions, tsheb kauj vab, tsheb cushions, tsheb sab hauv thiab sab nrauv Accessories, bumper tuav, kho mob thiab phais cov ntaub so ntswg, headrests, cov khoom siv dag zog lub rooj zaum, cov khoom siv qoj, PU cov log tsheb thiab lwm yam;

2. Mos thiab qeeb-rebound ua npuas ncauj: txhua yam ntawm cov khoom ua si qeeb-rebound, qeeb-rebound khoom noj khoom haus, qeeb-rebound txaj, qeeb-rebound hauv ncoo, qeeb-rebound aviation hauv ncoo, qeeb-rebound menyuam lub hauv ncoo thiab lwm yam khoom;

3. Mos siab-resilience ua npuas ncauj: cov khoom ua si thiab khoom plig, PU pob, PU high-resilience rooj tog cushions, PU high-resilience maus taus, tsheb kauj vab, thiab lub rooj zaum hauv tsheb cushions, PU high-resilience qoj khoom kis las, PU kho hniav lub rooj zaum backrests, PU kho mob headrest, PU kho mob txaj tsim txaj, PU siab resilience boxing hnab looj tes liner.

4. Mos thiab nyuaj vaj pawg: PU paj lauj kaub nplhaib series, ib puag ncig tus phooj ywg ntoo bran paj lauj kaub series, PU simulation paj thiab nplooj series, PU simulation tsob ntoo pob tw series, thiab lwm yam .;

5. Rigid filling: hnub ci zog, dej rhaub dej, prefabricated ncaj qha faus cua sov thiab thermal rwb thaiv tsev kav, txias cia panels, txiav panels, steamed mov laub, sandwich panels, dov shutter qhov rooj, tub yees interlayers, freezer interlayers, rigid foam qhov rooj thiab qhov rais , chaw nres tsheb qhov rooj, lub thawv tshiab-kho, rwb thaiv tsev chim series;

6. Mos thiab tawv ib puag ncig tiv thaiv tsis ntim khoom: siv ntau yam khoom ntim khoom tsis zoo thiab muaj txiaj ntsig thiab lwm yam;

7. Hard imitation ntoo ua npuas ncauj: tawv ua npuas ncauj qhov rooj nplooj, architectural kho kom zoo nkauj ces kaum kab, sab saum toj kab, qab nthab phaj, daim iav ncej, tswm ciab, phab ntsa txee, hais lus, nyuaj ua npuas ncauj chav dej accessories.

Cov khoom siv raw rau polyurethane elastomers feem ntau yog peb pawg, xws li oligomer polyols, polyisocyanates thiab saw extenders (crosslinking agents).Tsis tas li ntawd, qee zaum txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhim kho cov txheejTsuas yog cov ntaub ntawv raw siv hauv kev tsim cov polyurethane eeb tau piav qhia hauv qab no.

Polyurethane elastomer cov khoom muaj xim, thiab lawv cov tsos zoo nkauj nyob ntawm cov xim.Muaj ob hom xim, organic dyes thiab inorganic pigments.Feem ntau ntawm cov organic dyes yog siv rau hauv cov khoom siv thermoplastic polyurethane, kho kom zoo nkauj thiab zoo nkauj txhaj tshuaj thiab extruded qhov chaw.Feem ntau muaj ob txoj hauv kev rau xim ntawm cov khoom elastomer: ib qho yog txhawm rau txhawm rau cov khoom siv xws li pigments thiab oligomer polyols los ua xim paste niam cawv, thiab tom qab ntawd do thiab sib tov ib qho tsim nyog ntawm cov xim paste niam cawv thiab oligomer polyols sib npaug, thiab tom qab ntawd kub lawv.Tom qab lub tshuab nqus tsev vacuum, nws reacts nrog isocyanate Cheebtsam los tsim cov khoom, xws li thermoplastic polyurethane xim granules thiab xim paving cov ntaub ntawv;Lwm txoj kev yog grind additives xws li pigments thiab oligomer polyols los yog plasticizers rau hauv cov xim muab tshuaj txhuam los yog xim paste, lub cev qhuav dej los ntawm cua sov thiab lub tshuab nqus tsev, thiab ntim rau tom qab siv.Thaum siv, ntxiv me ntsis xim muab tshuaj txhuam rau hauv lub prepolymer, do tusyees, thiab tom qab ntawd hnov ​​​​mob nrog cov saw txuas txuas txuas txuas rau cov khoom pov tseg.Txoj kev no yog siv rau hauv MOCA vulcanization system, cov ntsiab lus ntawm cov xim nyob rau hauv cov xim paste yog li ntawm 10% -30%, thiab qhov sib ntxiv ntawm cov xim muab tshuaj nyob rau hauv cov khoom yog feem ntau qis dua 0.1%.

Cov polymer diol thiab diisocyanate yog ua rau hauv prepolymers, uas yog tag nrho sib xyaw ua ke, txhaj rau hauv pwm tom qab lub tshuab nqus tsev defoaming, txhaj rau hauv pwm thiab kho, thiab tom qab ntawd kho kom tau cov khoom:

Ua ntej, dehydrate cov khoom siv polyurethane elastomer nyob rau hauv qhov txo qis ntawm 130 ℃, ntxiv cov khoom siv polyester lub cev qhuav dej (ntawm 60 ℃) rau hauv cov hlab ntsha uas muaj cov compounded TDI-100, thiab ua ke cov prepolymer nrog txaus stirring.Cov tshuaj tiv thaiv synthesis yog exothermic, thiab nws yuav tsum tau muab sau tseg tias cov tshuaj tiv thaiv kub yuav tsum tau tswj nyob rau hauv thaj tsam ntawm 75 ℃ to 82 ℃, thiab cov tshuaj tiv thaiv yuav ua tau rau 2 teev.Tom qab ntawd cov khoom sib xyaw ua ke tau muab tso rau hauv qhov cub kom qhuav ntawm 75 ° C, thiab degassed hauv lub tshuab nqus tsev rau 2 teev ua ntej siv.

Tom qab ntawd ua kom sov lub prepolymer rau 100 ℃, thiab nqus tsev (nqus degree -0.095mpa) kom tshem tawm cov npuas npuas, hnyav tus neeg sawv cev sib txuas MOCA, ua kom sov nrog lub cub hluav taws xob ntawm 115 ℃ kom yaj, thiab txheej pwm nrog qhov tsim nyog tso tawm. tus neeg sawv cev rau preheat (100 ℃).), lub degassed prepolymer yog tov nrog melted MOCA, qhov sib tov kub yog 100 ℃, thiab cov sib tov yog stirred tusyees.Nyob rau hauv lub preheated pwm, thaum sib tov tsis ntws los yog lo rau tes (gel-zoo li), kaw lub pwm thiab muab tso rau hauv ib tug vulcanizer rau molding vulcanization (vulcanization tej yam kev mob: vulcanization kub 120-130 ℃, vulcanization sij hawm, loj. thiab Thick elastomers, lub sij hawm vulcanization yog ntau tshaj 60min, rau me me thiab nyias elastomers, lub sij hawm vulcanization yog 20min), tom qab-vulcanization kev kho mob, muab molded thiab vulcanized khoom ntawm 90-95 ℃ (nyob rau hauv tshwj xeeb, nws yuav ua tau 100 ℃) Txuas ntxiv rau vulcanize rau 10 teev hauv qhov cub, thiab tom qab ntawd muab tso rau hauv chav sov li 7-10 hnub kom ua tiav cov laus thiab ua kom tiav cov khoom tiav.