Kudzidza pamusoro pekuwedzera kwemoto-kunonoka kukwidziridzwa kwePA66 ne tsvuku phosphorus yakavharwa neresin dzakasiyana

Nylon 66 ine yakanaka mechanicha zvivakwa, kupfeka kuramba uye makemikari corrosion kuramba, uye inoshandiswa zvakanyanya mumotokari, zvemagetsi nemagetsi minda. Nekudaro, PA66 chinhu chinopfuta, uye pachave nedonhwe pakupisa, izvo zvine njodzi huru yekuchengetedza. Naizvozvo, zvine kukosha kukuru kudzidza iyo murazvo unodzoreredza shanduko yePA66. Iyo murazvo inodzoreredza system yePA66 yaimbove inotongwa nebrominated flame retardants, asi brominated flame retardants yanga yakatarisana nematambudziko akakura ekuchengetedzwa kwezvakatipoteredza uye CTI.

Parizvino, tsvuku phosphorus flame retardant inogona kuiswa kune flame retardant PA66 zvinhu nekuda kwekukwira kwayo kwemoto kudzoreredza kunyatsoita uye kuita kwemutengo wakanaka. Zvisinei, tsvuku phosphorous murazvo retardants mu yakakwirira tembiricha, mhepo, yakakwirira mwando uye alkaline nharaunda, nyore kutora mvura, zvichiita kuti zvinhu acidification. Iyo phosphoric acid inoshatisa zvikamu zvesimbi, zvichikonzera magetsi echigadzirwa.

Kuti udzivise acidification ye red phosphorous reaction, kunatsiridza kugadzikana kwe red phosphorous, nekure nzira inoshanda ndeye microcapsule yakanamirwa tsvuku phosphorus, nzira iyi ndeye in-situ polymerization, mune tsvuku phosphorous poda pevhu kusvika. gadzira yakagadzikana yepolymer zvinhu, kuitira kuti iwe ugone kubva pakubata neiyo tsvuku phosphorus uye okisijeni nemvura, uye inoderedza acidification yefosforasi tsvuku, inosimudzira kugadzikana kwekushandiswa kwezvinhu.

Nekudaro, marezeni ekuputira akasiyana ane akasiyana mhedzisiro pane tsvuku phosphorus murazvo wemoto retardant yakasimbiswa naironi. Muchidzidzo ichi, maviri matsvuku e phosphorous flame retardants akaputirwa ne phenolic resin uye melamine resin akasarudzwa kuti aongorore mhedzisiro yeaya maviri akasiyana ekubatisa emoto retardants pane akasiyana siyana emurazvo retardant akakwidziridzwa PA66 zvinhu.

Iko kuumbwa kwechinyorwa kunotevera: melamine resin yakavharwa tsvuku phosphorus flame retardant master material (MC450), phenolic resin yakavharwa tsvuku phosphorus flame retardant master material (PF450): tsvuku phosphorous content ye50%. Magadzirirwo emurazvo anodzora naironi yakasimbiswa 66 ndeye 58% naironi 66, 12% flame retardant master material, 30% girazi fiber.

Yakavharwa tsvuku phosphorous murazvo retardant yakawedzera PA66 fomula sheet

Mushure mekubatanidza nekugadzirisa, iyo PA66 / GF30 inoumbwa yakavharwa netsvuku phosphorus flame retardant yakagadzirwa, uye zvivakwa zvine hukama zvakayerwa sezvinotevera.

1. Flame retardancy, kupisa kwewaya tembiricha uye hama creepage mark index

Zvinogona kuoneka kuti ese PA66-1# uye PA66-2# anogona kusvika murazvo unodzora giredhi re1.6mm V-0, uye zvinhu zvacho hazvidonhe panguva yekupisa. Iwo marudzi maviri akaputirwa tsvuku phosphorous murazvo retardant yakakwidziridzwa PA66 ine yakanakisa murazvo unodzoreredza maitiro. Iyo inopenya-waya flammability index (GWFI) yePA66-1 # uye PA66-2 # inogona kusvika 960 ℃, uye iyo GWIT inogona kusvika 775 ℃. Iyo yakatwasuka yekupisa kuita uye inopenya-waya bvunzo kuita kweaviri akaputirwa tsvuku phosphorus murazvo retardant zvinhu zvinogona kusvika padanho rakanaka kwazvo.

Zvinogonawo kuoneka kuti PA66-1 yakakwira zvishoma pane iyo CTI ye # PA66-2 #, uye iyo CTI yemaviri matsvuku phosphorous yakavharidzirwa nemoto inodzoreredza PA66 zvinhu zviri pamusoro pe450V, inogona kusangana nezvinodiwa zvemaindasitiri mazhinji.

2. Mechanical property

Mechanical zvivakwa zvakakosha zvekutanga zvivakwa zvemurazvo wemoto unorebesa naironi yakasimbiswa pakushandiswa kwayo.

Zvinogona kuonekwa kuti kusimba kwesimba uye kukotamisa simba rePA66-1# zvakakwirira, izvo 164 MPa uye 256 MPa zvichiteerana, 5% uye 6% yakakwirira kupfuura iyo PA66-1#. Iyo notched yekukanganisa simba uye isina kucherechedzwa yekukanganisa simba rePA66-1 # ese ari maviri akakwira, ayo ari 10.5kJ/m2 uye 66.9 kJ/m2 zvichiteerana, 3% uye 21% yakakwirira kupfuura iyo PA66-1#, zvichiteerana. Iyo yakazara mechanical zvimiro zvezvinhu zviviri zvakaputirwa ne red phosphorous zvakakwirira, izvo zvinogona kusangana nekuita zvinodiwa zveminda dzakasiyana.

3. Kuonekwa uye kunhuwa

Zvinogona kuonekwa kubva pakuonekwa kwemhando mbiri dzemajekiseni akaumbwa masamples akaputirwa ne red phosphorous kuti flame retardant yakawedzera PA66 (PA66-1#) yakagadzirwa ne melamine resin yakavharwa ne red phosphorus ine pari panyoro, inopenya ruvara uye isina faibha inoyangarara pamusoro. pamusoro. Rudzi rwepamusoro rwemurazvo wemoto retardant wakasimbiswa PA66 (PA66-2 #) yakagadzirwa nephenolic resin yakavharwa ne phosphorus tsvuku yakanga isiri yunifomu uye pakanga paine mamwe mafibhi anoyangarara. Izvi zvinonyanya kuitika nekuti melamine resin pachayo ihupfu hwakatsetseka uye hwakatsetseka, seyekuputira layer yakaunzwa, ichaita basa rekuzora muhurongwa hwese hwezvinhu, saka chitarisiko chechinhu chakatsetseka, hapana chiri pachena chinoyangarara fiber.

Mhando mbiri dzetsvuku phosphorus-yakavharwa neflame retardant yakakwidziridzwa PA66 zvimedu zvakaiswa pa80 ℃ kwemaawa maviri, uye saizi yavo yekunhuwa yakaedzwa. Pa66-1 # zvinhu zvine kunhuwa kuri pachena uye kunhuhwirira kwakasimba. Pa66-2 # ine kunhuhwirira kudiki uye hakuna kunhuhwirira kwakajeka. Izvi zvinonyanya kukonzerwa neiyo in situ coating polymerization, iyo amine yakavharwa resin mamorekuru madiki haasi nyore kubvisa akachena, uye kunhuwa kweamine chinhu pachacho kwakakura.

4. Kutorwa kwemvura

Nekuti PA66 ine maamine uye carbonyl mapoka, zviri nyore kugadzira hydrogen zvisungo nemamorekuru emvura, saka zviri nyore kutora mvura kana ikashandiswa, zvichikonzera kuita plasticizing, zvichikonzera kuwedzera kwehuwandu hwezvinhu, kusimba kuderera, uye zviri pachena zvinokambaira pasi pechiito che stress.

Pesvedzero yeakasiyana akaputirwa murazvo retardant tsvuku phosphorous pamvura kunyura kwechinhu chakadzidzwa nekuyedza kunyura kwemvura kwechinhu. Zvinogona kuonekwa kuti kunwa kwemvura kwezvinhu zviviri kunowedzera nekuwedzera kwenguva. Iyo yekutanga kunyura kwemvura yePA66-1 # uye PA62-2 # yakafanana, asi nekuwedzera kweiyo nguva yekutora mvura, kunyura kwemvura kwezvinhu zvakasiyana zviri pachena zvakasiyana. Pakati pazvo, phenolic resin yakavharwa tsvuku phosphorus flame retardant naironi (PA66-2 #) ine yakaderera mvura yekunyudza mwero we5.8% mushure memazuva makumi mapfumbamwe, nepo melamine resin yakavharwa tsvuku phosphorus flame retardant naironi (PA66-1 #) ine mvura yakati darikei. chiyero chekunyura che6.4% mushure memazuva makumi mapfumbamwe. Izvi zvinonyanya kuitika nekuti phenolic resin pachayo mvura yekunyudza mwero yakaderera, uye melamine resin ine simba kunyura kwemvura, hydrolysis kuramba haina urombo.

5. Corrosion resistance kune simbi

Kubva pamasampuli asina chinhu uye kune akasiyana akavharidzirwa tsvuku phosphorus murazvo retardant yakasimbisa naironi zvinhu zvesimbi corrosion mumufananidzo unogona kuona, kwete kujoina, iyo isina chinhu sampu yeakagadziridzwa nayiloni simbi pamusoro pecorrosion ishoma, kune zvishoma mhepo uye mvura mhute ngura inokonzerwa ne mucherechedzo, PA66-1 # yesimbi corrosion yakanaka, simbi inopenya iri nani, zvikamu zvishoma zvine corrosion phenomenon, Iyo metal corrosion yePA66-2 # ndiyo yakanyanya kuoma, uye pamusoro pesimbi simbi yakasvibiswa zvachose. , nepo pamusoro pepepa remhangura paine ngura uye kuchena zviri pachena. Izvi zvinoratidza kuti kukora kwemelamine resin yakavharwa tsvuku phosphorous flame retardant naironi ishoma pane yephenolic resin yakavharwa tsvuku phosphorous flame retardant naironi.

Mukupedzisa, marudzi maviri emhando yemoto-inodzoreredza yakakwidziridzwa PA66 zvinhu zvakagadzirirwa nekuputira tsvuku phosphorus ine melamine resin uye phenolic resin. Mhando mbiri dzezvinhu zvinodzivirira moto zvinogona kusvika 1.6mmV-0, zvinogona kupfuura 775 ℃ inopenya-waya yekupisa tembiricha, uye CTI inogona kusvika kupfuura 450V.

Kusimba kwesimba uye kusimba kwePA66 kwakakwidziridzwa ne melamine yakavharwa tsvuku phosphorus, nepo inokanganisa pfuma yePA66 yaive nani ne phenolic yakavharwa tsvuku phosphorus. Pamusoro pezvo, kunhuhwirira kwe phenolic resin yakavharwa ne dzvuku phosphorous flame retardant yakakwidziridzwa PA66 yaive shoma pane ye melamine yakavharwa zvinhu, uye mwero wekunyudzwa kwemvura wakadzikira. Melamine resin yakavharwa ne red phosphorous flame retardant inosimudzira kutaridzika kwePA66 nekushomeka kushoma kumasimbi.

Reference: Kudzidza pamusoro pemoto inodzoreredza zvivakwa zvePA66 yakashongedzwa ne tsvuku phosphorus, Internet zvinhu.