Labaran Masana'antu
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Menene Halayen Polyvinyl Chloride (PVC)?
Wasu daga cikin muhimman halaye na Polyvinyl Chloride (PVC) sune: Yawan: PVC yana da kauri sosai idan aka kwatanta da yawancin robobi (nauyin nauyi na musamman kusan 1.4) Tattalin arziki: PVC yana samuwa cikin sauƙi kuma yana da arha. Tauri: PVC mai kauri yana da kyau ga tauri da juriya. Ƙarfi: PVC mai kauri yana da ƙarfin tauri. Polyvinyl Chloride abu ne mai "thermoplastic" (sabanin "thermoset"), wanda ke da alaƙa da yadda robobi ke amsawa ga zafi. Kayan thermoplastic suna zama ruwa a wurin narkewarsu (zagaye na PVC tsakanin ƙarancin digiri 100 na Celsius da mafi girma kamar digiri 260 na Celsius ya danganta da ƙarin abubuwa). Babban sifa mai amfani game da thermoplastics shine ana iya dumama su zuwa wurin narkewarsu, a sanyaya su, sannan a sake dumama su... -
Menene soda mai kaustic?
A matsakaicin tafiya zuwa babban kanti, masu siyayya na iya tara sabulun wanki, siyan kwalban aspirin da kuma duba sabbin kanun labarai a jaridu da mujallu. Da farko kallo, ba zai yi kama da waɗannan abubuwan suna da abubuwa da yawa iri ɗaya ba. Duk da haka, ga kowannensu, soda mai kauri yana taka muhimmiyar rawa a cikin jerin sinadaran da suke samarwa ko tsarin ƙera su. Menene soda mai kauri? Soda mai kauri shine sinadarin sodium hydroxide (NaOH). Wannan sinadari alkali ne - wani nau'in tushe wanda zai iya rage acid kuma yana narkewa a cikin ruwa. A yau ana iya ƙera soda mai kauri a cikin nau'in pellets, flakes, powders, solutions da ƙari. Menene ake amfani da soda mai kauri? Soda mai kauri ya zama sinadari gama gari wajen samar da abubuwa da yawa na yau da kullun. Wanda aka fi sani da lye, an yi amfani da shi t... -
Me yasa ake amfani da Polypropylene akai-akai?
Ana amfani da polypropylene a aikace-aikacen gida da na masana'antu. Halayensa na musamman da ikonsa na daidaitawa da dabarun ƙera kayayyaki daban-daban sun sa ya shahara a matsayin abu mai mahimmanci don amfani iri-iri. Wani siffa mai mahimmanci shine ikon polypropylene na aiki a matsayin kayan filastik da kuma zare (kamar waɗancan jakunkunan tallan da ake bayarwa a tarurruka, tsere, da sauransu). Ikon musamman na Polypropylene na ƙera shi ta hanyoyi daban-daban da kuma aikace-aikace daban-daban ya sa nan da nan ya fara ƙalubalantar tsoffin kayan maye, musamman a masana'antar marufi, zare, da injection structure. Ci gabansa ya ci gaba tsawon shekaru kuma ya kasance babban ɗan wasa a masana'antar filastik a duk duniya. A Creative Mechanisms, muna da... -
Mene ne granules na PVC?
PVC yana ɗaya daga cikin robobi da aka fi amfani da su a fannin masana'antu. Kamfanin Plasticol, wani kamfani na Italiya da ke kusa da Varese, ya shafe sama da shekaru 50 yana ƙera granules na PVC kuma ƙwarewar da aka tara tsawon shekaru ta ba wa kasuwancin damar samun zurfin ilimin da za mu iya amfani da shi don biyan buƙatun abokan ciniki da ke ba da kayayyaki masu inganci da inganci. Gaskiyar cewa ana amfani da PVC sosai don samar da abubuwa daban-daban yana nuna yadda halayensa na asali suke da matuƙar amfani da kuma na musamman. Bari mu fara magana game da tauri na PVC: kayan yana da tauri sosai idan yana da tsarki amma yana zama mai sassauƙa idan aka haɗa shi da wasu abubuwa. Wannan siffa ta musamman ta sa PVC ta dace da ƙera kayayyakin da ake amfani da su a fannoni daban-daban, tun daga ginin har zuwa... -
Kwalliyar da za a iya lalatawa za ta iya kawo sauyi a masana'antar kayan kwalliya.
Rayuwa cike take da marufi mai sheƙi, kwalaben kwalliya, kwano na 'ya'yan itace da ƙari, amma da yawa daga cikinsu an yi su ne da kayan guba da marasa dorewa waɗanda ke ba da gudummawa ga gurɓatar filastik. Kwanan nan, masu bincike a Jami'ar Cambridge da ke Burtaniya sun sami hanyar ƙirƙirar kyalkyali mai ɗorewa, mara guba da kuma mai lalacewa daga cellulose, babban ginin bangon tantanin halitta na tsirrai, 'ya'yan itatuwa da kayan lambu. An buga takardu masu alaƙa a cikin mujallar Nature Materials a ranar 11 ga wata. An yi shi da nanocrystals na cellulose, wannan kyalkyali yana amfani da launin tsari don canza haske don samar da launuka masu haske. A yanayi, misali, walƙiyar fuka-fukan malam buɗe ido da gashin tsuntsu na peacock manyan launuka ne na tsari, waɗanda ba za su shuɗe ba bayan ƙarni guda. Ta amfani da dabarun haɗa kai, cellulose na iya samar da ... -
Menene manne na Polyvinyl chloride (PVC)?
Man shafawa na Polyvinyl chloride (PVC) Resin, kamar yadda sunan ya nuna, shine galibi ana amfani da wannan resin a cikin nau'in manna. Mutane galibi suna amfani da wannan nau'in manna a matsayin plastisol, wanda shine nau'in ruwa na musamman na filastik PVC a cikin yanayinsa mara sarrafawa. . Sau da yawa ana shirya resins na manna ta hanyar emulsion da hanyoyin micro-suspension. Resin manna na Polyvinyl chloride yana da ƙaramin girman barbashi, kuma yanayinsa yana kama da talc, tare da rashin motsi. Ana haɗa resin manna na polyvinyl chloride da Plasticizer sannan a motsa shi don samar da tsayayyen dakatarwa, wanda daga nan ake yin manna na PVC, ko PVC plastisol, PVC sol, kuma a cikin wannan tsari ne ake amfani da mutane don sarrafa samfuran ƙarshe. A cikin aiwatar da yin manna, ana ƙara abubuwa daban-daban, masu narkewa, masu daidaita zafi, masu kumfa da masu daidaita haske bisa ga ... -
Menene PP Films?
ABUBUWAN DA KE CIKI Polypropylene ko PP wani abu ne mai ƙarancin zafi mai haske, mai sheƙi mai kyau da kuma ƙarfin tururi mai kyau. Yana da wurin narkewa mafi girma fiye da PE, wanda hakan ya sa ya dace da aikace-aikacen da ke buƙatar tsaftacewa a yanayin zafi mai yawa. Hakanan yana da ƙarancin hazo da sheƙi mai girma. Gabaɗaya, halayen rufe zafi na PP ba su da kyau kamar na LDPE. LDPE kuma yana da mafi kyawun ƙarfin tsagewa da juriya ga tasirin zafi mai sauƙi. Ana iya ƙara PP wanda ke haifar da ingantattun kaddarorin shingen iskar gas don aikace-aikacen da ke buƙatar aiki mai wahala inda tsawon lokacin shiryayye na samfur yake da mahimmanci. Fina-finan PP sun dace sosai don aikace-aikacen masana'antu, mabukaci, da na mota. Ana iya sake amfani da PP gaba ɗaya kuma ana iya sake sarrafa shi cikin sauƙi zuwa wasu samfura da yawa don aikace-aikace daban-daban. Duk da haka, har ma da... -
Menene mahaɗin PVC?
An gina mahaɗan PVC ne bisa ga haɗin polymer na PVC RESIN da ƙari waɗanda ke ba da tsarin da ake buƙata don amfani na ƙarshe (Bututu ko Rigid Profiles ko Flexible Profiles ko Sheets). Ana samar da mahaɗan ta hanyar haɗa sinadaran sosai, wanda daga baya ake mayar da shi cikin kayan "gelled" ƙarƙashin tasirin zafi da ƙarfi. Dangane da nau'in PVC da ƙari, mahaɗan kafin gelation na iya zama foda mai gudana kyauta (wanda aka sani da busasshen gauraya) ko ruwa a cikin nau'in manna ko mafita. Mahaɗan PVC lokacin da aka tsara, ta amfani da masu plasticizers, zuwa kayan sassauƙa, wanda galibi ake kira PVC-P. Mahaɗan PVC lokacin da aka tsara ba tare da mai plasticizer don aikace-aikace masu tsauri ba ana sanya su PVC-U. Ana iya taƙaita mahaɗan PVC kamar haka: Mai tauri PVC dr... -
Bambanci Tsakanin Jakunkunan BOPP, OPP da PP.
Masana'antar abinci galibi tana amfani da marufi na filastik na BOPP. Jakunkunan BOPP suna da sauƙin bugawa, shafa da laminate wanda hakan ya sa suka dace da shirya kayayyaki kamar sabbin kayayyaki, kayan ƙanshi da abubuwan ciye-ciye. Tare da jakunkunan BOPP, OPP, da PP ana amfani da su don marufi. Polypropylene polymer ne na gama gari tsakanin ukun da ake amfani da su don ƙera jakunkunan. OPP yana nufin Oriented Polypropylene, BOPP yana nufin Biaxially Oriented Polypropylene kuma PP yana nufin Polypropylene. Duk ukun sun bambanta a salon ƙera su. Polypropylene wanda aka fi sani da polypropene polymer ne mai thermoplastic semi-crystalline. Yana da tauri, ƙarfi kuma yana da juriya mai ƙarfi. Jakunkunan tsayawa, jakunkunan spout da jakunkunan ziplock an yi su ne daga polypropylene. Yana da matuƙar wahala a bambance tsakanin OPP, BOPP da PP plas... -
Binciken Aikace-aikace na Hasken Maida Hankali (PLA) a cikin Tsarin Hasken LED.
Masana kimiyya daga Jamus da Netherlands suna bincike kan sabbin kayan PLA masu aminci ga muhalli. Manufar ita ce haɓaka kayan aiki masu dorewa don amfani da na'urorin gani kamar fitilun mota, ruwan tabarau, filastik masu haske ko jagororin haske. A yanzu, waɗannan samfuran galibi ana yin su ne da polycarbonate ko PMMA. Masana kimiyya suna son nemo filastik mai tushen bio don yin fitilun mota. Ya bayyana cewa polylactic acid abu ne mai dacewa. Ta wannan hanyar, masana kimiyya sun magance matsaloli da dama da robobi na gargajiya ke fuskanta: na farko, mayar da hankalinsu ga albarkatun da ake sabuntawa zai iya rage matsin lamba da ɗanyen mai ke haifarwa a masana'antar robobi; na biyu, zai iya rage fitar da hayakin carbon dioxide; na uku, wannan Ya ƙunshi la'akari da rayuwar kayan gaba ɗaya... -
Tan miliyan na aikin ethylene na Luoyang ya sami sabon ci gaba!
A ranar 19 ga Oktoba, wakilin ya ji labari daga Luoyang Petrochemical cewa Kamfanin Sinopec Group Corporation ya yi wani taro kwanan nan a Beijing, inda ya gayyaci kwararru daga sassa sama da 10 ciki har da China Chemical Society, China Synthetic Roba Industry Association, da wakilan da suka dace don kafa ƙungiyar kwararrun masu tantancewa don tantance miliyoyin Luoyang Petrochemical. Za a tantance rahoton nazarin yuwuwar aikin ethylene mai nauyin tan 1 kuma a nuna shi sosai. A taron, ƙungiyar kwararrun masu tantancewa ta saurari rahotannin da suka dace na Luoyang Petrochemical, Sinopec Engineering Construction Company da Luoyang Engineering Company kan aikin, kuma ta mai da hankali kan cikakken kimantawa kan mahimmancin gina aikin, kayan aiki, tsare-tsaren samfura, kasuwanni, da kuma hanyoyin... -
Matsayin amfani da polylactic acid (PLA) da kuma yanayin amfani da shi a cikin motoci.
A halin yanzu, babban fannin amfani da polylactic acid shine kayan marufi, wanda ya kai sama da kashi 65% na jimillar amfani; sai kuma aikace-aikace kamar kayan abinci, zare/yadi marasa saka, da kayan bugawa na 3D. Turai da Arewacin Amurka su ne manyan kasuwannin PLA, yayin da Asiya Pacific za ta kasance ɗaya daga cikin kasuwannin da ke bunƙasa cikin sauri a duniya yayin da buƙatar PLA ke ci gaba da ƙaruwa a ƙasashe kamar China, Japan, Koriya ta Kudu, Indiya da Thailand. Daga mahangar yanayin aikace-aikacen, saboda kyawawan halayensa na injiniya da na zahiri, polylactic acid ya dace da gyaran extrusion, gyaran allura, gyaran busa extrusion, juyawa, kumfa da sauran manyan hanyoyin sarrafa filastik, kuma ana iya yin su zuwa fina-finai da zanen gado. , zare, waya, foda da o...