DuPont Kevlar® fibers muaj ntau yam txiaj ntsig rau cov neeg tsim qauv nrhiav kom muaj kev nyab xeeb thiab ruaj khov ntawm lawv cov khoom. Txij li thaum DuPont txiav txim siab txiav tawm Kevlar Engineered Elastomers (KEE) hauv 2017, cov tuam txhab tau tshawb nrhiav lwm txoj hauv kev uas tuaj yeem muab cov kev ua tau zoo ib yam lossis siab dua ntawm tus nqi sib tw.
Yog tias koj tab tom nrhiav txoj hauv kev zoo dua los faib cov fibers, Roy-Tuff ™ sib xyaw los ntawm HM Royal yog qhov zoo tagnrho rau cov nplaum, sealant, txheej thiab fiber ntau cov ntaub ntawv yas. Roy-Tuff cov khoom yog sib xyaw thiab qhib aramid pulps nrog thaj tsam loj tshaj plaws, ua kom muaj kev tawg sai sai rau hauv ntau yam khoom khov.
Txhawm rau pab koj txiav txim siab seb cov khoom lag luam Roy-Tuff puas yog rau koj daim ntawv thov, qhov blog no qhia txog kev ua tau zoo, cov txheej txheem thauj khoom thiab cov txheej txheem sib xyaw cov lus pom zoo.
Cov txiaj ntsig ntawm Kev Siv Roy-Tuff Fibers
1. Polymer kev ywj pheej
Roy-Tuff blends ua haujlwm thoob ntiaj teb. Qhov ntawd txhais tau tias koj tuaj yeem siv cov khoom no hauv txhua hom polymer yam tsis muaj teeb meem kev sib raug zoo.
2. Kev ua haujlwm zoo dua
Mooney thiab MDR cov ntaub ntawv qhia kev txhim kho hauv viscosity ntawm qhov sib npaug ntawm fiber ntau.
3. Txo lub sij hawm voj voog
Roy-Tuff sib xyaw ua kom muaj feem pua ntawm cov cuab yeej cuab tam kawg nkaus tom qab tsuas yog ib qho 2- sib tov. Yog li koj suav nrog cov ntaub ntawv sai dua thiab siv lub zog tsawg dua.
4. Txhim kho dispersion
Peb pom zoo kom ib nrab ntawm cov pa roj carbon dub ntxiv tom qab Roy-Tuff thaum lub sij hawm xoom, yog li ntawd muaj qhov tseem ceeb shear thiab sib tov nyob rau hauv lub sij hawm thaum ntxov nyob rau hauv lub internal mixer. Qhov no ua rau muaj kev txhim kho tseem ceeb hauv kev faib tawm ntawm cov pulp hauv qhov sib xyaw.
5. Cov khoom muaj zog, muaj kev nyab xeeb, ua haujlwm ntev
Roy-Tuff blends nce hnav tsis kam 2 mus rau 4 zaug thiab txhim kho kev sib tsoo los ntawm 10-20 feem pua. Lawv kuj nce kua muag los ntawm 50-70 feem pua .
6. Tus nqi tsim nyog
Roy-Tuff blends yog qhov kev xaiv nrov vim lawv cov nqi. Lawv tuaj yeem xa cov khoom sib npaug nrog lub sijhawm ua haujlwm tsawg dua thiab cov khoom siv qis dua, ua rau tus nqi qis dua.
Loading Levels thiab Comparative Reinforcement Guidelines
Roy-Tuff 9021 yog HM Royal qhov kev sib xyaw ua ke thiab ua cov thev naus laus zis. Peb pom zoo kom cov neeg siv pib ntawm 2-5 phr ntawm Roy-Tuff.
Ib feem ntawm kev tsom xam yog qhov sib piv yooj yim ntawm Roy-Tuff thiab carbon dub nrog rau precipitated silica. Qhov cuam tshuam rau lub zog tsim kua muag tseem ceeb txawm tias ntawm 2 phr. Hauv qee qhov kev siv siv conveyor siv, 2 phr ntawm Roy-Tuff tau pom tias muaj kev txhim kho tseem ceeb hauv kev xeem.
Mixing txheej txheem pom zoo
Cov khoom sau, rotor ceev thiab tov khoom kub yog txhua yam uas ua lub luag haujlwm tseem ceeb hauv kev sib xyaw kom zoo nrog rau lub sijhawm sib xyaw. Yog hais tias lub pulp thiab carbon dub tau muab tso rau tib lub sijhawm, yuav muaj qee qhov kev poob qis hauv cov theem thaum ntxov vim tias cov qib ntawm cov khoom cuam tshuam nrog kev tawg. Qhov no yog vim hais tias Roy-Tuff muaj ib tug kuj tsis tshua muaj bulk modulus, uas yuav ua rau muaj teeb meem nyob rau hauv tsim ib tug overfull mob pib.
Ib qho kev hloov kho me ntsis hauv cov txheej txheem tau ua kom zoo dua qhov kev faib tawm ntawm cov pulp hauv qhov sib xyaw. Raws li tau hais ua ntej, nws yog qhov zoo tshaj kom ntxiv ib nrab ntawm cov pa roj carbon dub tom qab Roy-Tuff ntawm lub sijhawm xoom. Qhov no ua rau muaj kev cuam tshuam tseem ceeb thiab sib xyaw ua ke nyob rau theem pib ntawm cov khoom siv sab hauv, cuam tshuam qhov zoo ntawm dispersion hauv cov khoom kawg.
Peb pom zoo kom ua ob-kauj ruam kev sib xyaw, nrog rau thawj zaug yog cov kauj ruam uas tsis muaj txiaj ntsig tau poob ntawm 150-160 degree . Cov kauj ruam thib ob yuav yog cov txheej txheem ua haujlwm luv dua uas qhov kho tau ntxiv thiab poob ntawm 120 degree. Qhov no ua rau kom zoo dispersion ntawm curative, tab sis nws tsis kub txaus los pib kho.
