Chloroprene rubber (CR), inozivikanwawo se chloroprene rubber, is elastomer inogadzirwa nealpha polymerization ye chloroprene (kureva, 2-chloro-1,3-butadiene) seyakanyanya mbishi.Yakatanga kugadzirwa naWallace Hume Carothers wekuDuPont musi waKubvumbi 17, 1930. DuPont yakazivisa pachena muna Mbudzi 1931 kuti yakanga yagadzira chloroprene rabha ndokuiunza kumusika muna 1937, zvichiita kuti rabha rechloroprene rive rekutanga rekugadzira rabha rakagadzirwa mumaindasitiri. .
Chloroprene rubber properties.
Neoprene chitarisiko chine mukaka chena, beige kana mwenje shava maflakes kana mapundu, density 1.23-1.25g/cm3, girazi shanduko tembiricha: 40-50 ° C, inoputsika nzvimbo: 35 ° C, kupfava kunenge 80 ° C, kuora pa230- 260°C.Soluble mu chloroform, benzene nemamwe organic solvents, yakazvimba mumafuta emuriwo uye mineral oil isina kunyungudika.80-100 ° C inogona kushandiswa kwenguva yakareba, ine imwe dhigirii yekutsva kwemoto.
Neoprene rabha uye yakasikwa rabha chimiro chakafanana, mutsauko ndewekuti polar negative yemagetsi boka mune neoprene rubber inotsiva boka remethyl mune yakasikwa rabha, iyo inovandudza iyo ozone kuramba, mafuta kuramba uye kupisa kupisa kweneoprene rabha.Muchidimbu, ine yakanakisa kupikisa kwemamiriro ekunze, ozone resistance, chemical corrosion resistance, mafuta kuramba, etc. Hunhu hwayo hwakakwana hwemuviri nemuchina zvakare huri nani.Naizvozvo, neoprene inoshanda zvakasiyana-siyana, zvese seyakajairwa-chinangwa rabha uye seyakakosha rabha.
Iwo makuru emuviri uye ma mechanical properties ndeaya anotevera:
1.Kusimba kwe neoprene rubber
Izvo zvinorema zvinhu zve neoprene zvakafanana neaya echisikigo rabha, uye rabha rayo mbishi rine simba rakanyanya kusimba uye kureba panguva yekuzorora, inova rabha rinozvisimbisa;iyo molecular chimiro che neoprene chinogara chiri molecular, uye ketani ine polar mapoka emaatomu eklorini, ayo anowedzera intermolecular simba.Nokudaro, pasi pekuita kwemasimba ekunze, zviri nyore kutambanudza uye crystallize (self-reinforcing), uye intermolecular slippage haisi nyore.Mukuwedzera, huremu hwema molecular hwakakura (2.0 ~ 200,000), saka simba rekusimba rakakura.
2.Excellent kuchembera kuramba
Chlorine maatomu anonamirwa paviri bond ye neoprene molecular chain inoita kuti maviri bond uye maatomu eklorini asashande, saka kugadzikana kwekuchengetera kwerabha rayo rine vulcanized kwakanaka;hazvisi nyore kukanganiswa nekupisa, okisijeni uye chiedza mumhepo, izvo zvinoratidza kuchembera kwakanyanya (kuramba kwemamiriro ekunze, kupikisa ozone uye kupisa kupisa).Kuramba kwayo kuchembera, kunyanya mamiriro ekunze uye kuramba kweozone, ndeyechipiri kune ethylene propylene rubber uye butyl rabha mune general-chinangwa rabha, uye iri nani kupfuura rabha rechisikigo;kupikisa kwayo kupisa kuri nani pane rabha rechisikigo uye styrene butadiene rabha, uye yakafanana nerabha nitrile, inogona kushandiswa kwenguva pfupi pa150 ℃, uye inogona kushandiswa kwenguva yakareba semwedzi mina pa90-110 ℃.
3.Excellent flame-resistance
Neoprene ndiyo yakanakisa-chinangwa rabha, ine hunhu hwekupisa kusingaite, kusangana nemurazvo unogona kupisa, asi murazvo wega unodzima, izvi zvinodaro nekuti kupisa kweneoprene, basa rekupisa kwepamusoro rinogona kuora pasi pebasa re hydrogen chloride gasi uye ita kuti moto udzime.
4.Kunyanya kupikisa mafuta, kupikisa kwekugadzirisa
Kupokana kwemafuta kweneoprene rabha ndeyechipiri chete kune nitrile rabha uye zviri nani pane mamwe general rubber.Izvi zvinodaro nekuti iyo neoprene molecule ine polar chlorine maatomu, ayo anowedzera polarity yemorekuru.Kupokana kwemakemikari neoprene zvakare kwakanaka kwazvo, kunze kweiyo yakasimba oxidizing asidhi, mamwe maasidhi uye alkali anenge asina mhedzisiro pairi.Kupokana kwemvura kweneoprene zvakare kuri nani pane kwemamwe marubha ekugadzira.
Ndedzipi nzvimbo dzekushandisa neoprene?
Neoprene inoshandiswa mumhando dzakasiyana siyana dzekushandisa, kunyanya kune zvigadzirwa zvinoramba kuchembera, senge waya dzemagetsi, matehwe etambo, njanji yenjanji pillow pads, bhasikoro matayi padivi, madhamu erabha, nezvimwewo;zvigadzirwa zvinodzivirira kupisa uye zvinodzivirira moto, senge mabhandi ekutakura kupisa, hosi, mapepa erabha, nezvimwewo;Zvigadzirwa zvinodzivirira mafuta uye zvinodzivirira kemikari, senge hose, rabha rollers, mashizha erabha, mota uye zvikamu zvetirakita;zvimwe zvigadzirwa semucheka werabha, shangu dzerabha uye zvinonamira, nezvimwe.
1.Waya uye tambo yekuvhara zvinhu
Neoprene inodzivirira chiedza chezuva, ozone inodzivirira, uye ine yakanakisa isingabatike, ndiyo yakakodzera tambo zvinhu zvemigodhi, ngarava, kunyanya kugadzira tambo sheathing, asi zvakare inowanzoshandiswa kumota, ndege, injini yekubatidza waya, tambo dzeatomu dzesimba rekudyara. pamwe chete newaya dzenhare.Neoprene yejacket yewaya uye tambo kushandiswa kwayo kwakachengeteka kupfuura rabha rechisikigo kupfuura 2 nguva refu.
2.Bhandi rekufambisa, bhandi rekutumira
Neoprene ine yakanakisa michina zvivakwa, yakanyatsokodzera kugadzirwa kwemabhandi ekufambisa uye mabhandi ekutakurisa, kunyanya nekugadzirwa kwayo kwemabhandi ekutapurirana zviri nani pane mamwe rabha.
3.Oil resistant hose, gasket, anti-corrosion Murari
Zvichienderana neayo yakanaka kuramba mafuta, makemikari anodzivirira kupisa, kupisa kupisa uye humwe hunhu, neoprene inoshandiswa zvakanyanya mukugadzira zvigadzirwa zvisingadzivirirwe nemafuta uye hose dzakasiyana-siyana, matepi, gaskets uye kemikari-inodzivirira corrosion midziyo, kunyanya inodzivirira kupisa. conveyor mabhandi, oiri uye asidhi uye alkali inodzivirira hoses, nezvimwe.
4.Gasket, pedhi yekutsigira
Neoprene ine chisimbiso chakanaka uye kuchinjika kuramba, akawanda uye akawanda emota zvikamu zvakagadzirwa neoprene, senge mahwindo efafitera, hose yeakasiyana magaskets, nezvimwewo, asi zvakare inoshandiswa sebhiriji, mine yekusimudza rori, tangi remafuta retsigiro.
5.Adhesive, sealant
Neoprene adhesive yakagadzirwa neoprene rabha sechinhu chikuru mbishi chine kuchinjika kwakanaka, uye kuramba kuchembera, kuramba kwemakemikari uye kuramba kwemafuta, uye simba rekubatanidza.
Neoprene latex haina organic solvents, saka ine mabhenefiti ari pachena mukuchengetedza uye hutano, uko carboxyl neoprene inogona kushandiswa seanonamira yerabha nesimbi.Chloroprene rabha ine polarity, saka iyo yekubatanidza substrate ine huwandu hwakasiyana hwekushandisa, kunyanya yegirazi, simbi, yakaoma PVC, huni, plywood, aluminium, akasiyana vulcanized rabha, dehwe uye zvimwe zvinonamira.
6.Zvimwe zvigadzirwa
Neoprene inoshandiswawo zvakanyanya mumunda wekutakura uye kuvaka.Zvakadai sekushandisa neoprene foam seat cushion mubhazi uye subway mota, zvinogona kudzivirira moto;ndege, ine rabha yechisikigo uye neoprene blends kuti iite zvikamu zvisingaite mafuta;injini ine zvikamu zverabha, gaskets, zvisimbiso, nezvimwewo;kuvakwa, kunoshandiswa mune yakakwirira-kukwira kuvaka gasket, zvese zvakachengeteka uye zvinokatyamadza;neoprene inogona zvakare kushandiswa seyakaiswa mucherechedzo, interceptor pachisimbiso chikuru, kudhinda, kudhaya, kudhinda, bepa uye mamwe maindasitiri erabha rollers Neoprene inogona zvakare kushandiswa semhepo cushion, bhegi remhepo, midziyo inoponesa hupenyu, inonamatira tepi, nezvimwe.
Nguva yekutumira: Oct-20-2022