Pa66 (polyamide 66 kana nylon 66) is a thermoplastic resin, kazhinji yakagadzirwa nePolycendenation yeAdipic acid uye adipic diamine. Iko kusanzwisisika mune general sol sol sol, uye kungova soluble mum-crenl uye zvichingodaro. Iyo ine simba rakasimba simba uye kuomarara, uye kwakaomarara. Inogona kushandiswa seinjiniya mapurasitiki, mashandiro emachira akadai semagiya, panzvimbo pezvinhu zvisingaiti zvesimbi, etc. chigadzirwa. Inogona zvakare kushandiswa kugadzira machira echiSynthetic.
General Ruzivo
Iyo inonzi thermoplastic resin ine eide boka (-conh-) mukudzokorora kwechimiro checheni yemamoreni. Zvinowanzogadzirwa mune cylindrical pellets, uye kuremerwa kwemanyorerwo emapuranga anoshandiswa kune mapuranga anowanzoitika zviuru gumi nezvishanu kusvika zviuru makumi maviri ematani. Hunhu hwakajairika hwemapuranga akasiyana-siyana emurazvo wakadzoreredza, Simba rakakwira ~ Nekudaro, apo iyo Monomer yakaratidzwa muResin yakakwira zvakanyanya, haina kukodzera kuonana kwenguva refu neganda kana chikafu, uye pane kazhinji hutsinye hwekudya munharaunda dzakasiyana siyana.
Nylon zvigadzirwa
Nhoroondo yekutanga maindasitiri eindasitimu marudzi epolyamide ndeye polyamide 66 (ie, nylon 66), United States of Amely Muna 1938, 1939 emaindasitiri ekugadzira zvikamu zvekushanda. Panguva iyoyo, polyamides yainyanyo kushandiswa pakugadzirwa kwemitezo, tambo uye zvifukidzo. Iko kushandiswa kwemauto kwezvinhu izvi kwakatanga zvakanyanya mukati mehondo yechipiri yenyika, uye mafirimu nemapurasitiki akagadzirwa mushure mehondo. 1941 Akaona kutanga kwekugadzira polyamide 6 kuGermany, ichiteverwa nekuvandudzwa kwePolyamide 610. 1950 akaona kuvandudzwa kwe polyamide 11 muFrance. 1958 akaona iyo yakabudirira yekuyera kugadzirwa kwePolyamide 1010 kuChina, uye co-polyamide muUSSR. 1966 yakaona yakakura-kugadzirwa kwe polyamide 12 kuHess Company Kambani muFederal Republic yeGermany. Muna 1972, US ende yakaziva kugadzirwa kweindasitiri kweanonhuwirira polyamitides. Makore makumi manomwe gare gare, kuchinjika kwemapuranga kwakamutsa kufarira kukuru, kunyanya kushanduka kwemaindasitiri wechipfuva, mutengo unoderedza gore rimwe nerimwe, kuti polyamide yakawanda yakawedzera mukirasi ye Marudzi, anogona kugadziridzwa kune akasiyana mashandisiro emidziyo yePolymer.
Kuita
Pa66 polyamide 66 kana nylon 66 chemakemikari uye yemuviri zvivakwa pa66 ine yakakwira yekunyungudza pollamide zvinhu. Icho chidimbu cheSemi-Crystalline-Crystalline zvinhu.PA66 inorarama simba rayo uye kuomarara pakupembera kwakanyanya. Mhedzisiro yehygroscopicity pane geometrical kugadzikana inofanirwa kuiswa muaccount panguva yekugadzirwa kwechigadzirwa. Kuti uvandudze michina yemakirini ye pa66, akasiyana-siyana edifiers anowanzowedzerwa. Girazi ndiyo inonyanya kujairika, uye dzimwe nguva madhiri akadai saPDM uye SBR anowedzerwa kuti avandudze kukanganisa kukanganisa. Pa66 ine viscosity yakaderera uye saka kuyerera kwakanaka (asi kwete zvakanaka se pa6). Ichi chivakwa chinogona kushandiswa kubhinda zvakanyanyisa kuonda zvikamu. Yayo viscosity inoerera pakudziya kwekushisa.PA66 Shrinkage iri pakati pe1% uye 2%, uye yekuwedzera yegirazi fiber inogona kuderedza kuderera kune 0.2% kusvika 1%. Shrinkage munzira yekuita uye iyo nzira yepamberi yekuita nzira yekuita yakakura. Pa66 is solvent inoramba kune akawanda mashimony, asi haakwanisi kuita zvekicids uye mamwe marudzi evanoumbwa.
Zvimiro zvemuviri uye zvemakemikari
Pa66 mapurasitiki akaomeswa ekutenderera kana opaque opalescent package kana ine yero granular crystalline polymer, ine plivistity. Density (g / cm3) 1.10-1.14; Tensile Simba (MPA) 60.0-80.0; Rockwell Hardness 118; inonyungudika point 252 ° C; kumprittlent tembiricha -30 ° c; Thermal Dicomposition tembiricha yeanopfuura 350 ° C; Kuenderera mberi kupisa kupokana 80-120 ° C; kukanganisa simba (KJ / M2) 60-100; Static inokotama simba (MP) 1 00-120; Martin Heat Kurwisa (° C) 50-60; Flexural Mowelus yeElasticity (MPa) 2000-3000; Vhoriyamu Daness (ωCM) 1.83 × 1015; Kuenzana kwemvura kubhururuka 2,5%; Dielectric nguva dzose 1.63.
Makemikari formula: [
Pa66 ine nzvimbo yakakwirira yekunyungudutsa mumidziyo yePolyamide. Muchigadzirwa chechigadzirwa, pa66 shrinkage pakati pe1% uye 2%.
Ikozvino kutenderera pamusika nemvura yakawanda yekurasa mvura kuburikidza nekugadziridzwa, iyo yakafanana inogona kuzadzisa zvimiro zvekutanga zvezvinhu zvekutanga, nepo mutengo wakachipa kupfuura zvinyorwa zvezvinyorwa, zvekuti ruzhinji rwevatengi kuchengetedza huwandu hwakawanda hwe mutengo.
Polyamide kugadziridzwa
Nzira huru ndeyekuwedzera huwandu hwakakodzera hwekuwedzera muzvikamu zvePolymerization kana kugadzirisa, kuti upe iyo resin maitiro akasiyana siyana, kuitira kuti zvakakodzera kune dzakasiyana siyana. Zvinowanzo shandiswa zvinoshandiswa zvinoshandiswa ndeaya: ① Stabilizer. Kusanganisira kupisa mastulizer uye maStabilizers, ayo anogona kuvandudza zvinonyorwa oxidation kuramba uye kupokana nechiedza chePolyamide kugadzira anlon nyling nylon. Kana iwe ukawedzera zvakaburitsa kabhoni kabhoni 2% (mhando), polyamide inogona kushandiswa kunze kwekunze kwenguva yakareba. ② Kazhinji inoshandiswa girazi fiber yakasimbiswa zvinhu. Yakagadzirwa neNylon yakasimbiswa yekuvandudza kuomarara, kuderedza kukanda, uye ita kuti kuumbwa kweiyo chigadzirwa kuderera kunova kushoma, kuri nani kugadzikana. Kuvandudzwa nesimbi yemesimbi, kwete chete mukuru chete, asi kuitisawo. Nezvingana zvavo zvakare vane mhedzisiro yekuvandudza, uye ita kuti kugadziridzwa nekugunun'una nyore, kuderedza. Molybdenum kukuvara uye polytetrafluorolerywo ari zvakare polyamide inosimbisa zvinhu, uye inogona kuvandudza kupfeka kupokana. ③ Kuwedzera Kunowedzera Kuwedzera. Yakashandiswa kugadzira microcrystalline nylon nylon, inogona kumhanyisa nguva yekudengenyeka, kuitira kuti kutenderera kwakapfupikiswa ne20% kusvika 30%. Mukuwedzera, zvichienderana neshoko, mapurasitiki uye lubricants inogona kuwedzerwa.
Imwe nzira yekugadziridzwa ndeye copolymerization, copolymerization yeNYLON kuti yakanaka yekuputira zvinhu uye gasket kuisimbisa zvinhu; Polyamide uye Polydolefin Block Graft Copolymerization, inogona kudzikisira simba rakapinza uye kudzikisira kudzikisira, uyezve zvinogona kuitwa nyore kuita, zvigadzirwa zvepurasitiki zvakaderera. Iyi nzira inoshanda yekugadzirisa hurema hwePolyamide ndeimwe yemirairo yekuvandudzwa kwemhando dzakashandurwa mumakore apfuura.
Inoshandisa
Polyamide zvigadzirwa zvinoshandiswa zvakanyanya seyakasiyana-siyana zvikamu uye zvemagetsi, maGeyle, magengeri, maPureseni, reservoirs, tambo, tambo, vhiri Kunamatira, mabhokisi ebhatiri, magetsi magetsi, tambo dzinobatanidza uye zvichingodaro. Kune zvakare kurongedza tepi, firimu rekudya (yakabikwa chikafu yakakwirira-tembiricha yefirimu uye zvinwiwa zvinotonhora zvine firimu-tembiricha firimu) kugadzirwa zvakare yakakura. Monsanto kambani muUnited States kukudziridza mapuranga ekugadzirisa jekiseni kuumbwa, anoonekwawo negirazi rakasimbisa rim nylon hombe dzimba dzekutakura, kuitira kuti polyamide mumakwikwi Nezvishandiso zvesimbi, mune indasitiri yekugadzira emagetsi yekudzora uremu, kuchengetedza simba uye kuderedzwa kwemutengo kwawana imwe nzira.
Marudzi makuru emapolyamide fils (aliphatic) ari nylon 66 uye nylon 6, iyo yekupedzisira inozivikanwa zvakare seNylon. Ivo vane simba rakakwirira, kusimba kwakanaka, iyo yepamusoro yekushambadzira yemitezo yemitezo, kurwisa kuraswa kwakawanda uye kuparara kupokana nePolyester, yakakwirira kupfuura mamwe mafaira. Ivo vane tembiricha yakanaka yekudziya, asi isina kunaka mwenje uye kupisa kupokana. Polyamide fiber filing inogona kugadzirwa mumasokisi, underwear, shati, sweatshirts, ski shirts, kunaya, nezvimwewo Steple Fibers inogona kusanganiswa nekotoni, makushe uye viscoose machira, kuitira kuti machira ane godion anodzivisa uye simba. Inogona zvakare kushandiswa seVelcro, makapeti, machira ekushongedza uye zvichingodaro. Inoshanda kwazvo inonyanya kushandiswa kugadzira jongwe tambo, conveyor bhandi, hove mambure, tambo uye zvichingodaro.
