Ema-Resin e-PVC Lasetulu SG3, SG5, SG7: Bunjiniyela Lobulungiselelwe Tisombululo Tetimboni Kusukela Ekupheleni

Umklamo Wemamolekhyuli & Timphawu Temtimba

SG3 (Lizinga Leliphakeme - Lekugucugucuka)
Yakhiwe ngesigaba se polymerization se 1300 - 1500 kanye ne K - linani le 70 - 72, lelibanga linemaketanga lamadze ema molecule lakhutsata kubanjwa kwe plasticizer. Kusakateka kwayo kwetinhlayiya letingu 60 - 250μm kucinisekisa kusakateka lokufanako ekwakhiweni kwemakhompawundi lathambile, kuvumela 25 - 35g wekumuncwa kwe plasticizer nge 100g ye resin. Lesakhiwo se amorphous lesiphumelako siniketa elongation lekhetsekile ngesikhatsi sekuphuka, kwenta kutsi kube kuhle kakhulu kumikhicito ledzinga kugucuka lokuphindzaphindziwe ngaphandle kwekudzabuka.

SG5 (Indlela Leyehlukahlukene - Libanga)
Kulinganisa lizinga le polymerization le 1000 - 1100 nge K - linani le 65 - 67, iSG5 iniketa indzawo lesemkhatsini leshintjashintjako. Kucina kwayo kwetinhlayiya lokulungisiwe (0.45 - 0.58g/mL) kwenta kutsi kugeleze lokubushelelezi kwekuncibilika kukho kokubili kukhipha kanye nekubunjwa kwekujova, kantsi kumuncwa kwepulasitiki lokulinganiselwe (20 - 28g/100g) kuniketa emandla ekugucuka kusuka kumaphrofayli etintsambo leticinile kuya kumaphrofayli laphansi - lacinile. Le molecule chain njalo kunciphisa emaphutsa ekucubungula, kucinisekisa bukhulu belubondza lobungagucuki ekukhipheni emaphayiphi.

SG7 (Libanga Lebunjiniyela Lolucinile)
Ngesigaba se polymerization se 700 - 850 kanye ne K - linani le 60 - 62, iSG7 ibeka embili kusebenta kahle kwekupakisha kwema molecule kwentela kucina. Isakhiwo sayo lesincane setinhlayiya letingu 40 - 180μm (bukhulu 0.50 - 0.62g/mL) sinciphisa tikhala etincenyeni letibunjiwe, kwenta ncono kumelana nemtselela kumaphrofayli ekwakha. Lokumuncwa kwe plasticizer lokuphansi (15 - 22g/100g) kuvumela kwakheka lokucinile ngalokuphelele, kantsi ivinyl monomer lesele ≤3μg/g ihlangabetana nekudla - kuchumana nemazinga ekuphepha ekusebentisa emaphakethe.

Sicelo Semvelo

SG3: Ingcweti Yekugucugucuka
Emikhakheni yekulima, emafilimu lasekelwe ku SG3 - lane 40 - 50 phr ye plasticizer lengetiwe akha i UV - tivalo te greenhouse leticinile, kulinganisa kudluliswa kwekukhanya ngemandla ekumelana netinyembeti. Kusetjentiswa kwetekwelapha, lokucuketfwe kwayo lokuphansi kwe monomer kwenta kutsi kube nemashubhu lathambile emishinini ye dialysis, kantsi eticatfulweni, kwenta emasoles lacinile lagcina kwakheka kulo lonkhe lizinga lekushisa.

SG5: Lihhashi Lekusebenta Letimboni
Bakhiciti betintsambo basebentisa libanga le-SG5 le-10 - 20 phr plasticizer kute bakhicite lilangabi - ema-sheaths ekuvikela emagridi emandla, ahlanganisa kuvikela gezi kanye nekucina kwemishini. Ekwakhiweni, iphuma ibe yimigca yekuvala lengavikeleki esimeni selitulu yemafasitelo, lapho khona buciniso bayo lobulinganiselwe bumelana nekubola kwe ozone. Injection - tincenye tetimoto letibunjiwe, njengekuhlobisa umnyango, tiyazuza ngemtselela wayo - emandla - kuya - esilinganisweni sesisindvo.

SG7: Umncintiswano Wekucinisa
Tinhlelo temaphayiphi etimboni titsembele ku-SG7's modulus lesetulu yemaphayiphi emfucuza lamelana nemakhemikhali kanye nemaphayiphi emanti lalinganiselwe ngekucindzeteleka. Emaphrofayli emafasitelo lakhishiwe, uma ahlanganiswa ne titanium dioxide, akhombisa kucina kwembala lokukhetsekile etindzaweni letingaphandle. Abakhiciti be-elekthronikhi bayisebentisela umjovo - tindlu tetintfo tekusebenta letibunjiwe, basebentisa kusimama kwayo kwebukhulu ngesikhatsi sekuhlanganiswa lokusetulu - lokushisa.

Umhlahlandlela Wekusebenta Kahle Kwenchubo

Tintfo letincane tekulawula kushisa
iSG3 ifuna kulawulwa lokucinile kwekushisa (160 - 180°C) kuvikela kubola ngaphambi kwesikhatsi; ngisho nekuphuma ngetulu kwa 10°C kungabangela kukhishwa kwe hydrochloric acid, lokuholela ekubeni mtfubi. Ngalokwehlukile, iSG7 ibeketelela kucubungula lokungu 180 - 200°C, kuvumela emazinga ekukhipha ngekushesha emaphayiphi lamakhulu - lanebubanti, noma ngabe kwedlula 210°C kuyingoti yekuhlukana kwemaketanga emamolekhyuli.

Umklamo Weluhlelo Lwekwengeta
Kusimamisa: iSG3 idzinga 1 - 2 phr ye calcium - zinc lehlanganisiwe yekusimamisa kwentela kulwa nekubola kwekushisa ngesikhatsi sekucubungula lokusetulu - kwe plasticizer, kantsi iSG7 idzinga 0.5 - 1 phr kuphela ngenca yekunciphisa kucindzeteleka lokubangelwa yi plasticizer.
Kugcobisa: Onkhe emabanga ayazuza ku 0.2 - 0.5 phr we polyethylene wax, kepha iSG3 ingadzinga imithamo lephakeme kwentela kunciphisa kukhukhumala kwangekhatsi kuma compound latsambile.
Tintfo Letengetako Letisebentako: Ema Antioxidants ku SG7 formulations anweba imphilo yekusebenta yangaphandle, kantsi umtselela modifiers ku SG5 utfutfukisa kumelana ne notch kwentela kubandza - kusetjentiswa kwesimo selitulu.

Kusebenta Kahle Kwebunjiniyela Ekwakhiweni Kwe-Resin

Ngekuhlanganisa bunjiniyela be-molecule lobucondzile ngekuhlolwa lokucondziswa sicelo, iphothifoliyo yetfu ye-SG3, SG5, SG7 iniketa bakhiciti emandla ekwendlula imikhawulo ye-PVC yendabuko. Kusuka ekugucugucukeni lokudzingekako kwetintfo letilahlwako tekwelapha kuya ebucotfweni besakhiwo lobufunwa ngekwakha lokusetulu, lama resin afaka ekhatsi kuhlanganiswa kwekucinisa kwesayensi kanye nekusebenta kwetimboni-kubeka tilinganiso letinsha tekusebenta - leticondziswa tisombululo te polymer.

Tincazelo

Liphepha Lekulawula Lizinga