Kuphatikiza rabar ndikubala zinthu zosiyanasiyana mu mphira mothandizidwa ndi makina ophatikizira a mphira, kuti azigwiritsa ntchito rabaji, ndi zitsamba, ndi zina. njira. Zofunikira za ukadaulo za njira yophatikizira ndi: Chuma chobalalika cha wophatikiza wamkulu, kotero kuti wowonjezera wophatikizidwa bwino monga kaboni wakuda, umatheka kuti atsimikizire ntchito yosasunthika ya mphira. Mpira womwe umachokera ku 'kuphatikiza rabara ' ndipo mawonekedwe ake ali ndi chofunikira pakusinthanso komanso kwabwino.
1 - Kuchulukitsa kwa neoprene
Neoprene ndi emulsion polymerization njira yopangira, mawonekedwe opanga ndi amodzi polymerization. Kutentha kwa ma polymeriza kumayang'aniridwa kwambiri pa 40-60 ℃, ndipo kuchuluka kwa kutembenuka kuli pafupifupi 90%. Kutentha kwa ma polymerization, kutembenuka kotsiriza kwapamwamba kwambiri kapena kuchuluka kwa polymerization mu mpweya kumabweretsa kuchepa kwa malonda. Misa yazikulu imayendetsedwa ndi sulfura-kiuram (tettalylymethylamisoocarbucarfide) dongosolo. Choyipa chachikulu cha sulfura-kiuram ndikusowa kokhazikika kwa ma sulfure, omwe ndi amodzi mwa zifukwa zosungitsa. Ngati kuchuluka kwa ma molecular kumasinthidwa ndi thiool kumatha kukonza izi. Neoprene ndi wosiyana ndi rateni yopangidwa ndi mphira, samagwiritsa ntchito sulfur chivundikiro, koma ndi zinc oxide, magnesium oxide, etc. vallization.
Kuchita kwadokotala kwa neoprene kumatengera mayendedwe a rasi yosasinthika, ndipo ma viscoelastic amakhudzana ndi mitundu yosiyanasiyana ya neopreene ndi kutentha. Pamene kusakaniza kumachitika nthawi zambiri kugwiritsidwa ntchito kwa elastic kuti agwiritse ntchito chigamba cha shear ku matenda a mphira kuti apange filler wobalalika. Chifukwa chake, kupewa kutentha kwambiri mukasakaniza neoprene, osewera amayenera kuwonjezeredwa moyambirira kuti akwaniritse kusakanikirana kwinakwake. Mukasakanikirana ndi Reminer Refniner, mtundu wa g-g Mukasakanikirana ndi chotsitsimula chowirira, chizikhala chochepetsedwa bwino, chinthu chokwanira cha 0.6 ndichoyenera, nthawi zambiri chimagawanika kawiri, kuti muchepetse kutentha kosakanikirana. Kutentha kwake kuyenera kukhala kotsika kuposa 100 ℃.
Neoprene pogwiritsa ntchito makina otseguka ndikusakanikirana ndi kutentha, kosavuta kumamata, motero kuchuluka kwa wothandizirayo sikuyenera kukhala laling'ono, kotero kuchuluka kwa wothamanga sikuyenera kukhala yayikulu. Chifukwa cha kuzindikira kwamphamvu kwa kutentha, neop-neop-neop-neop-neop-neop-kutentha firiji mpaka 71 ℃, liziwonetsa phokoso lopindika Kutentha kwabwino kwa neop yokhala ndi neop yokhala ndi silfurne yomwe ili m'munsi ya 79 ℃, kotero magwiridwe antchito abwinobwino ndi abwino kuposa sulufur-olamulidwa, komanso chizolowezi chomata komanso chisumbu. Kugwada ndi makina otseguka, kuti tipewe zomata zomata, kutentha nthawi zambiri kumayendetsedwa pa 40 ~ 50 ~ rall rall ndi otsika pang'ono pang'onopang'ono, ndipo mtunda uyenera kusintha pang'onopang'ono kuchokera kwakukulu mpaka yaying'ono. Mukasakanikirana, choyamba onjezani acid magnesium oxide kuteteza, kenako kuwonjezera zinc oxide. Pofuna kuchepetsa kutentha kosakanikirana, mbalame zakuda ndi zamadzimadzi zimatha kuwonjezeredwa m'mitundu ina. Stearic acid ndi paraffin sera ndi othandizira ena ogwirira ntchito amatha kuwabalalitsa pang'onopang'ono anawonjezeredwanso, kuti athandize kufalikira, komanso kupewa odzimangira omata. Sluropreted chloroprene rabay nthawi yayitali nthawi yayitali imakhala 30% mpaka 50% yotalikirapo kuposa nthawi yachilengedwe, yomwe siyikusakaniza ya sulufule ikhoza kukhala pafupifupi 20% kuposa sulufur-yoyendetsedwa. In order to avoid neoprene in the mixing machine in the opening of the temperature rise too fast, the speed ratio is less than 1:1.2 below, the cooling effect will be better. Kuchepetsa mphamvu yoyenganso komanso njira yotsimikizira chitetezo chantchito ndi kupezeka kwabwino. Pakadali pano, negupre yapamwamba ya suluplene yoyenga mitengo kuposa mphira wachilengedwe ziyenera kukhala zosakwana 20% mpaka 30%, kuti mugwire ntchito bwino. Monga neoprene ndikosavuta kulowerera, kotero kuti mugwiritse ntchito makina oyenga zoyenga zoyenga zoyenerera nthawi zambiri amagwiritsidwa ntchito m'njira ziwiri zosakanikirana. Kutentha kosakanikirana kuyenera kukhala kotsika (kutentha kwanyengo nthawi zambiri kumayendetsedwa pansi pa 100 ℃), mphamvu zotsika ndizotsika kwambiri kuposa 0,50 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,5 ~ 0,50 ~ ndi zinc5), ndi zinc5), ndi zinc Chifukwa cha vuto lomwe chloroprene ndi losavuta ku Scorch komanso zovuta kubalanda, leee Reform to protor yofananira ndi '
2 - Kuphatikizira kwa Ethynene Proble
Nkhota ya Ethylene imatha kukonzedwa ndi zida wamba za mphira, koma chifukwa kuwononga ma proceps a ethylene kumakhala kosavuta, ndikupanga pepala lokhazikika, ndikukulitsa mafilimu osakanikirana. Kutentha kwa kutentha kwa kutsogolo kwa 50 ~ 60 ℃, pambuyo pa 1 6 ~ 70 ℃ ndikoyenera. Dongosolo la phwezi la EPDM nthawi zambiri limakhala lotentha kwambiri: 1/2 carbon Black-Zirbon Oxide-Zirm Black-Zirm Black-Zirneum Oxide) Mbewu ya Ethylene Proplene imathamangitsidwa mosavuta ikasakanikirana, ndipo mankhwala ophatikizika amabalalika kwambiri, koma malo odzikongoletsera ndi osauka. Ethylene-Prompyney Kusakanikirana ndi Reminer yotsegulira, nthawi zambiri amagwiritsa ntchito mphindi yaying'ono kuti apitirize kupitiliza mpukutuwo, kenako ndikupuma pang'ono, onjezerani kutentha, kutentha, kutentha pakati pa 60 ~ 70 ℃. Kutentha kosakanikirana ndi 150 ~ 160 ℃, komwe kungathandize kufalikira kwa filler ndi softener ndi kusintha kwa makina. Kutha kwa katundu kumatha kukhala 10% ~ 15% kuposa zida zina za mphira.
3- Kuchulukitsa kwa fluoroelastor
Amuna a fluorine a rabarany akukwera amakhala okhwima, okhwima, kutentha kwa mafungo, kusakaniza wamba ndi kukonza kumakhala kovuta kwambiri. Mukasakanikirana mphira wa fluorine pa makina oyenga, mpaka mtunda waung'ono, kuchepa, kuchuluka kwa kutentha pa 50 ~ 60 ℃. Kusakaniza kumayamba, choyamba onetsetsani kuti odzigudubuza, onjezani ma rabara owonda pafupifupi 10 kuti apange mphira wokhazikika, kenako onjezerani nthawi yomwe ingafotokozedwe, koma imafunikira mwachangu momwe mungathere. Nbebe ya fluorine ndizovuta kugwiritsa ntchito kusakaniza kwa makina osakanikirana, koma mtundu wobowola wosakanikirana wozizira wozizira ukulimba, mutha kusakaniza rate wa fluorine. Mbidzi yophika iyenera kuyimitsidwa kwa maola 24 musanagwiritse ntchito, ndipo iyenera kukhala yoyenerera kuti igwiritsidwe ntchito kuti mupange mafuta omwe amamwa kwambiri ndikusintha madzi ndi kukoma mtima kwa mphira.
