A cikin samar da tsari naPP masana'anta ba saƙa, abubuwa daban-daban na iya shafar kaddarorin jiki na samfurin. Yin nazarin alakar da ke tsakanin waɗannan abubuwan da aikin samfur yana taimakawa wajen sarrafa yanayin tsari daidai da samun ingantattun samfuran masana'anta na PP waɗanda ba saƙa da ko'ina. A ƙasa, editan masana'anta mara saƙa na Chengxin zai ɗan bincika manyan abubuwan da ke tasiri kan abubuwan da ba a saka ba na PP, kuma ya raba tare da kowa:
1. Narke index da kwayoyin nauyi rarraba PP wadanda ba saka masana'anta polypropylene kwakwalwan kwamfuta
Babban alamun ingancin kwakwalwan polypropylene sune nauyin kwayoyin halitta, rarraba nauyin kwayoyin halitta, na yau da kullum, narke index, da abun cikin ash. PP kwakwalwan kwamfuta da ake amfani da su don yin kadi suna da nauyin kwayoyin halitta tsakanin 100000 da 250000, amma aikin ya nuna cewa rheological Properties na narke sun fi kyau lokacin da nauyin kwayoyin polypropylene ya kai 120000, kuma iyakar saurin juzu'in da aka yarda ya yi yawa. Indexididdigar narkewa shine siga wanda ke nuna kaddarorin rheological na narkewa, da ma'aunin narkewar kwakwalwan kwamfuta na polypropylene da ake amfani da su.spunbondyawanci tsakanin 10 da 50. A lokacin aikin juyawa, filament yana karɓar daftarin iska guda ɗaya kawai, kuma daftarin rabon filament yana iyakance ta rheological Properties na narke.
Ya fi girma da kwayoyin nauyi, watau karami da narke index, da matalauta da rheological Properties. Karamin daftarin rabon filament ɗin da aka samu, mafi girman girman fiber ɗin filament ɗin da aka samu a ƙarƙashin adadin narke ɗaya da aka fitar daga spinneret, yana haifar da jin daɗin hannun PP wanda ba saƙa. Idan index narke yana da girma, danko na narkewa yana raguwa, rheological Properties suna da kyau, kuma juriya ga raguwa yana raguwa. A ƙarƙashin yanayin shimfidawa iri ɗaya, yawan miƙewa yana ƙaruwa. Yayin da ma'anar macromolecules ya karu, ƙarfin karya na PP wanda ba a saka ba zai karu, kuma girman fiber na filament zai ragu, yana haifar da laushi mai laushi na masana'anta. A ƙarƙashin wannan tsari, mafi girman ma'aunin narkewa na polypropylene, ƙarami girman fiber ɗinsa, kuma mafi girman ƙarfin karaya.
Ana auna rarraba nauyin kwayoyin halitta ta hanyar rabo (Mw/Mn) na matsakaicin nauyin kwayoyin halitta (Mw) zuwa adadin matsakaicin nauyin kwayoyin halitta (Mn) na polymer, wanda aka sani da darajar rarraba nauyin kwayoyin halitta. Karamin ƙimar rarraba nauyin kwayoyin halitta, mafi daidaituwar kaddarorin rheological na narkewar sa, kuma mafi kwanciyar hankali tsarin jujjuyawar, wanda ke da amfani don haɓaka saurin juyi. Har ila yau yana da ƙananan narke elasticity da danko mai ƙarfi, wanda zai iya rage danniya mai juyayi, sa PP ya fi sauƙi don shimfiɗawa da lafiya, da samun fitattun zaruruwa. Bugu da ƙari, daidaituwar ƙirar gidan yanar gizon yana da kyau, tare da jin daɗin hannu mai kyau da daidaituwa.
2. PP ba saƙa masana'anta kadi zafin jiki
Saitin zafin juzu'i ya dogara da ma'aunin narkewar albarkatun ƙasa da buƙatun kayan samfur na zahiri. Mafi girman ma'aunin narkewar albarkatun ƙasa, mafi girman madaidaicin zafin jiki, kuma akasin haka. Zazzabi mai jujjuyawa yana da alaƙa kai tsaye da ɗanƙoƙin narke, kuma zafin jiki yayi ƙasa. Dankowar narke yana da girma, yana sa jujjuyawar ke da wahala da yuwuwar samar da karye-shaye, ƙwanƙwasa ko ƙananan zaruruwa, waɗanda ke shafar ingancin samfur. Sabili da haka, don rage danko na narkewa da inganta halayen rheological, ana amfani da hanyar haɓaka yawan zafin jiki gaba ɗaya. Yanayin zafin jiki yana da tasiri mai mahimmanci akan tsari da kaddarorin zaruruwa. Ƙarƙashin zafin jiki na juyi, mafi girma da danko na narke, mafi girma juriya na juriya, kuma mafi wuya shi ne shimfiɗa filament don samun girman fiber iri ɗaya.
Lokacin aikawa: Maris 16-2024