Muna 2021, chidimbu cheChinese cheChina China pa6 ine mwero wakakwira wekusangana. Globally, anenge 55% yeP6 slices inoshandiswa kuti mafambi, uye anenge 45% emagetsi, etc.
PA nylon dema granular zvinhu
Kubva 2021 kusvika 2022, mutengo wePa6 wakafambawo munguva dzinoverengeka coaster kumusoro uye pasi.
NYLON 6 (PA6), anozivikanwawo sePolyamide 6, nylon 6, simba rayo rekuita uye kuchema kwaro kwakanaka, uye ane hunhu hwekurwisa, kupfeka kuramba. Iyo yakave ichishandiswa zvakanyanya mumotokari indasitiri, njanji yekutenderera, mafirimu ekutakura, zvishandiso zvemagetsi uye machira. Kunyangwe kuita kwaro kwakawanda kwakakwana kwakanaka, zvakare kune nhevedzano yekukanganisa. Semuenzaniso, Pa6 haana acid yakasimba uye alkali kuramba, uye simba rekukanganisa harisi rakakwira pane yakadzika tembiricha uye yakaoma mamiriro. Kuvapo kwehydrophil base kuchaita kuti mvura yakakwira yemvura ichakonzera huwandu hwekutora, uye kudzikisira, kukanganisa simba nekudaro zvichikonzera kudzikisira kwemvura, nekudaro kukanganisa kugadzikana kwezvigadzirwa uye zvimiro zvemagetsi zvezvigadzirwa. Naizvozvo, zvinodikanwa kuti udzidze kugadziridzwa kwePA6.
PA6 inoshandiswa mumotokari
PA6 inoshandiswa muzvinyorwa
- Papping
Iyo mbichana yePange yePa ine yakafara sosi, iyo iri hwaro hwekugadzirwa kwayo kukuru kwemaindasitiri. Nekuda kwegadziriro yenguva dzose yemanyorerwe emolecular, PA inogona kuumba akawanda hydrogen zvisungo pakati macromoporo, saka ine yakakwirira crystallinity. Panguva imwecheteyo, ine zvakare hunhu hwakatanhamara muchimiro chemuchina, zvivakwa zvemakemikari, zvivakwa zvekupisa uye zvimwe zvinhu, kusanganisira:
(1) Simba renzvimbo yakakwirira uye kuve nesimba;
(2) kupokana kwakanaka;
(3) kupokana kwakanyanya kupisa;
(4) Iyo ine maitiro ekupfeka-kuramba uye kuzvishingisa, izvo zvisingaenzaniswi nezvinhu zvesimbi.
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(7) zvakanakisa zvekupokana kuita;
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Kuti upe PA6 STOPER STATER ZVESANGANO, dzakasiyana-siyana dzeMidifiers dzinowanzowedzerwa, pakati pezvinonyanya kuwedzerwa maFility fiber. Elastomer kana Synthetic Rubber yakadai sePoe, SBR, kana EPDM inowanzo kuwedzerwa kupa pa6 simba rakasimba kuramba. Kana pasina anowedzera muCASE chigadzirwa, iyo purasitiki yezvinyorwa zvinoputika ine chiyero chinoputika che1% kusvika 1.5%, uye kuwedzera kwema fiber inopa chigadzirwa chine chigadzirwa chine huwandu hwegumi nenhamba ye1.3%. Pakati pavo, kunyorova kwekunyorova uye kuchema kwechinyorwa ndizvo zvinhu zvikuru izvo zvinodzikira kugungano kweboka repurasitiki uye dhizaini rekushanda zvakare riine hukama hwekuita neiyo chaiyo shrinkage rate.
Girazi fiber
Poe elastomer
Kuomeswa kurapwa kwe pa6 kuti jekiseni kuumbwa kuri nyore kutora mvura, saka inofanira kusungirirwa kukosha kukuru pakuomerwa kwekuomesa usati wagadziriswa. Kana zvinhu zvakapihwa zvakacheneswa mumvura zvinhu, mudziyo unofanira kuchengetedzwa mumamiriro akavharwa. Kana kusimira kwakakura kupfuura 0.2%, mweya unopisa unofanirwa kusarudzwa kuti uenderere mberi nekuomesa pasina pasi pe80 ℃ kwe 16h; Kana zvinyorwa zvacho zvichiratidzwa nemhepo kweinenge 8h, inofanira kuve yekuvhara yakaomeswa pa105】 kweanopfuura 8h.
- Maitiro ekugadzira ye pa6
1.Two-Stage Polymerization
Maviri-nhanho polymerization inonyanya kukamurwa kuita zvikamu zviviri: kumberi polymerization uye kumashure polymerization. Kazhinji, yakakodzera kugadzirwa kwezvigadzirwa zvepamusoro viscossity seyakagadzirwa seindasitiri tambo yemucheka. Iyo mbiri-nhanho polmerization inonyanya kusanganisira nzira nhatu: Pre - uye post-yakajairika Pressure Polymerization, post-decomprichization polymerization uye post-yakajairwa polymer. Pakati pavo, iyo yekudzvinyirira yePolymerization nzira inosanganisira nzira yakakura uye mutengo wakakwira, ichiteverwa nePre-High Pressure Polymerization uye Post-yakajairika Pressure Polymer. Pre - uye post-yakajairika kumanikidza Polymerization ine mutengo wakaderera uye haudi mari yakawanda.
2. Atmpheric inoenderera mberi Polymerization nzira
Kuenderera mberi Polymerization pasi pekumanikidzwa kwemudenga zvinoshanda mukugadzirwa kweP6 Civil Silk, pakati peiyo nzira yekugadzira yeiyo noy yeIy inomiririra zvakanyanya. Nzira yacho inoratidzwa neakakura-chiyero chinoenderera mberi polymerization na 260 × ye20h. Zvidimbu zvakawanikwa mumvura inopisa yemvura inopesana. Pashure pokunge vaOligromers vakaomeswa neNitrogen gasi, vanhu vanokatyiswa vakapora nekubvisa, uye maitiro ekuvhuvhu akaenderera nekuenderera nekuvhurwa kwakaunzwa panguva imwe chete. Iyi nzira ine sarudzo inoshamisa yekugadzira, inogona kuwana zvigadzirwa zvemhando yepamusoro, gohwo rakakura, uye haagare nzvimbo yakakura kwazvo mukushandisa zvinoshanda, ishandirwi yehurumende yehukama.
3.Intermittent hydrolysis polymerization
Iyo Batch Hydrolysis Polymerization nzira inoshandisa kumanikidza kudzvinyirira Polymerization kenymerization kethmer. Iyi nzira yakakodzera kugadzirwa kwemhando dzakasiyana-siyana uye diki batch engineering purasitiki giredhi zvidimbu. Imwe-nguva yekudyisa, mushure mekuita basa (imwe-yenguva-yenguva) ine nitrogen kumanikidza kucheka, kubviswa, mushure mekuoma kugadzirira pa6. Iyo Batch Polymerization maitiro anogona kukamurwa kuita matanho matatu: Chikamu chekutanga ndechemvura inovhuvhuta mhete yehove. Iyo yechipiri nhanho ndeye vacuum polmerization; Chikamu chechitatu ndechekuenzanisa maitiro.
Batch Polymerization yakakodzera kugadzirwa kwemhando dzakawanda dzeBatch
4..Twin-screw Extrilion Kuenderera Polymerization Process
Twin-Screw Extrusion Inoenderera Polymerization Proction idiki tekinoroji yakagadzirwa mumakore achangopfuura. Iyo inotora anionic catalytic polymerization uye caprolactam yakagadziriswa nekushomeka uyezve inoenderera mberi inopinda-screw inopararira. Mumapatya-screw kutsvaira, maitiro ekuita anofamba nenzira yeiyo inonhuwirira nekutenderera kweiyo screw, uye hama yayo molekyular inoenderera mberi nekuwedzera. Iyo yakaderera mamorekuru inobviswa neiyo nhamba yeTwin-Screw Extruder, uye Polymer inodonhedza uye yakanyoroveswa, yakaoma uye yakaomeswa.
Maitiro acho ane hunhu hwepfupi hwekugadzira kuyerera uye kugadzirwa kuri nyore, uye kusava nemonomer ine huremu hwakaderedzwa Mvura inoyevedza ndeye yakaderera, nguva yekuomesa ipfupi, inogona kuderedza zvakanyanya kushandisa simba. Panguva imwecheteyo, iyo hama yechigadzirwa chechigadzirwa inogona kudzorwa nenzvimbo yekugara yezvinyorwa zviri mumapatya-screw inopararira.
- Dzidza nekugadziridzwa kwe pa6
1.thanced shanduko
Nekuda kwekuvapo kwekuvapo kwehydrogen zvisungo muA6 mamorekuru, kuchinjika kwayo uye simba kuchakanganiswa. Nekuwedzera kwehydrogen bond density, simba rekusimba reP6 richava rakaenzana. Iyo more kabhoni maatomu iripo, iyo refu iyo inochinjika keteni, iyo inonyanya kushanda. Izvo zvigadzirwa zvemakanika zveP6 Composites zvinogona kuvandudzwa nekuwedzera girazi fiber. Iyo tetragonal zno whisker ine yakanyanya kusimba. Zvichibva pane izvi, mhedzisiro yekudzidza pane inowedzera mhedzisiro yeZno whisker pane iyo yekukanda Simba kana iyo Whisker yeChinyorwa ichi iri 5%, uye kuwedzera iyo whisker zvemukati ichaderedza kupokana nekudziya kwemvura. Iyo inobhururuka Ash yakarapwa ne silane coupling mumiririri uye ikazadzwa muCast PA6 chigadzirwa chekugadziridzwa. Chigadzirwa chekupedzisira chaive nani chekunyudza kugadzikana, shrinkage chiyero uye mvura yekunyura.
2.Flame Retarded Kugadziridzwa
Iyo okisijeni index yePA6 ndeye 26.4, inopisa zvinhu. Mitemo yenyika nemirairo inonyatsoda murazvo woromoka wePolymer zvinhu, saka zvakakodzera kubatanidza kukosha kwakanyanya kumurazvo wekudzokorora kugadziridzwa kweP6 kana ichishandiswa mumagetsi-zvine chekuita zvigadzirwa. Iyo muripo restard yealuminium hypophapohosphate ndeyekuita zvakanaka mune izvo zvigadzirwa zvakagadzirirwa nekusanganisa akasiyana-siyana masimbi hypophosphate ine salts ne pa6. Kana zvirimo zveAluminium hypophosphate is 18%, kurasikirwa kwacho kunopisa kwezvinhu zvinogona kusvika makumi maviri nemashanu, uye UL94 inogona kusvika V-0 Giredhi.
Melelamine Cyanuric Acid (MCA) yakagadziridzwa ne Red Phosphorous inogona kushandiswa semurazvo unodzoreredza pa6. Phosphorous tsvuku inogona kukanganisa kuumbwa kweiyo hydrogen bond network pakati pe melamine uye cyanuric acid, uye mca inogona kuumba kabhoni pasi pechiito chezvitsvuku phesphorus. Naizvozvo, Modigedified Mca inogona kutamba murazvo unodzoreredza basa mune condension chikamu uye chikamu chegesi, iyo inoenderana nekuvandudzwa kwemurazvo wekudzokorora zvinhu zvePa6. Iyo yekudzora oxygen index (Li) yeiyo cany yakagadziriswa nekuwedzera Guanadine Sulfonic acid muA6 Matrix nekunyungudika nzira yekubatanidza. Muedzo wekurwazve wakaratidza kuti kubereka kwemadonhwe akanyungudutswa kwakanyanyisa kuenzaniswa neiyo yeGuanidine Sulfonic acid yaive 1% yeGuanidine Sulfonic acid yakanga isiri pasi pe5%.
Tsvuku phosphorous
3.Toghening Shanduro
Iyo yakashongedzwa uye yakagadziridzwa pa inogona kuwanikwa nekuwedzera iyo DUCTILE Resin kana Elasomer kune iyo PASINA SINGINL uye wozosanganisa uye kubuda.Kana iyo yekushongedza mumiririri akaomesesa SBS, iyo yekuzvidza yakasanganisa system yeSBS uye PA6 inowanikwa nemuchina wekunyungudika nzira yekubatanidza. Kana huwandu hwemasvomhu akawedzera akawedzera, iyo notch inokanganisa simba rehurongwa uye kushanduka kwezvinyorwa zvichave zvakavandudzwa. Kuenzaniswa nePA6 uye EPDM compositi, EPDM yakakwenenzverwa neyeMilic Anydride ine zvirinani rabha uye epurasitiki kuomarara uye kwakanyanya kuomarara. Kana dosage yeEpdm yakarongedzwa neyechirume neyechirume
SBS Kuzvidza Mumiriri
Foto sosi: Guofeng Rabber uye Plastiki
4.Filling shanduko
Iyo yehupfumi filler inowedzerwa muPa resin, uye yakagadziridzwa composite paishandirwi inogona kuwanikwa mushure mekusanganisa uye kuumbwa. Uchishandisa silicon carbide seyavafambi Kana huwandu huchizadza hwekushamwaridzana neApple
Silicon carbide
Chigadzirwa cheyakawanikwa chakawanikwa kubva pa6 uye organic Montmortillonite kubatwa neylt kusanganisa jekiseni kuumbwa uye kupfeka, kupisa zvinopesana uye michina. Iyo filler is aluminium poda, iyo substrate ndeye copolymeized pa6 uye pa66, uye zvinyorwa zvemhando yepamusoro zvinogona kugadzirira nekunyungudika. Kana zvirimo zveAluminium Pokwuta zvinowedzera, simba rakawanda remanyoro rinowedzera kutanga uye rinodzikira, uye mugadziri weMudzidzisi zvishoma nezvishoma anowedzera, asi simba rekukanganisa rinoderera. Mushure mekuzadza kubhururuka maAshBeads muPA6, kuomarara, kukanganisa uye kusimba kwesimba kwezvinhu zvinogona kuvandudzwa kwazvo, uye chigadzirwa chinogona kuve chakapihwa nekugadzikana kuri nani.
5.Pa Alloy
Pa6 Alloy ndeyakawanda-chikamu, mazhinji emhando dzevakaumbwa nemhando mbiri dzePolymer, pakati pevanobatanidza polymer, grafu copolymer uye block copolymer inoshandiswa zvakanyanya. PA6 uye maleic Anhydride akapfekedza Polypropylene (PP-G-MAH) Mushure mekusanganisa zvinyorwa zvemvura, iyo mwero wekunyanyisa wakawanda kupfuura pa6, uye une simba rakanyanya kukanganisa kupfuura pa6.
Syor Old Moleic Anhydride Yakabatanidzwa Polypropylene
Iyo yakakora yakaderera Density Polyethylene (LDPE), maleic Anhydride (mahac Anhydride (mah) uye anotanga diisopropyl benzy peroxe Zvadaro, kusanganisa kweLDPE-G-MAG uye PA6 kunogona kugadziriswa nekunyungudika nzira yekubatanidza yakabatanidzwa neine diki yePA6. Kana dosage yemasikati azhydride yaive 1.0, iyo inosanganiswa neyakanakisa isina kunaka simba inogona kuwanikwa. Kana dosage yeye maleic anydride yakachengetwa pa1.0 chikamu, shanduko yeDCP Dosage yaisazove nekunyanyisa kukanganisa pane zvivakwa zvebiramu. Kana iyo Dosage yeDCP yaive 0.6, iyo yakakwana isina simba simba rekusanganisa raigona kuwanikwa.
Mienzaniso yapfuura yeP6 Aggregation tekinoroji inosanganisira Switzerland iventand, Italy's noy, uye yeGermany Kart Fischer uye Zimmer. Pahwaro hwekunyorera kudzidza kubva kune vekunze tekinoroji uye ruzivo, runobva kuTournicious tekinoroji yechigadzirwa
Iyo polymerization kugona kwePA6 kuChina yakachengeta shanduko yekuwedzera yekuwedzera, ine huwandu hwekugadzira kure kwazvo neye pa66. Pazasi riripo, kutsvagisa kwechinongedzo kwePA6 kunonyanya kusimbisa, kusimbisa, kuchizadza mapoka akasimba eApple. Kunyangwe urwu rudzi rwekugadziridzwa rwunonyatsoitwa nekubatanidza zvinhu zvakakosha, nzira dzekushandura dzekuwedzera uye kuita zvakare kwakakodzerawo. Nekuwedzera kukudziridzwa kwehunyanzvi hwemazuva ano, zvinhu zvino zvinogona kuunzwa kuti ugadzirwe pa6 kuti uwane zvakagadziridzwa pa6 nehuremu hwakanyanya, kusimba kwakanyanya, kusimba kwakanyanya, kusimba kwakanyanya, kuitira kuti zviitike zvinodikanwa zveminda dzakasiyana siyana.
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Kutumira Nguva: Mar-16-2023