I-Zeolite i-molecular sieves iye yatsala ingqalelo enkulu kwiminyaka yamuva nje njengezinzisi kwishishini leplastiki, njenge-polyvinyl chloride (PVC) kunye ne-polypropylene (PP). Ngokuqhelekileyo zisetyenziselwa ukuthintela ukuthotywa komgangatho kunye nokuphucula ukuzinza kwe-thermal, ngokwandisa ubomi benkonzo.
I-PVC Zeolite Stabilizer
I-PVC ivakalelwa ngokwendalo kubushushu, ukungazinzi kakuhle kwe-thermal, kwaye ithanda ukonakaliswa kumaqondo aphezulu. Izizinzi ze-Thermal ziyafuneka ukuthintela ukubola, ukuguquka kwebala, kunye nokulahlekelwa kwepropathi yoomatshini kwizinto zePVC.
I-PVC ikhupha i-hydrogen chloride xa isesichengeni sobushushu, eyona nto ibangela ukuba i-PVC ibe mnyama ngombala kwaye yonakale ekusebenzeni kwayo. Ngoko i-thermal stabilizers inoxanduva lokungathathi hlangothi kwe-hydrogen chloride kunye nokuthintela ukuthotywa kwekhonkco.
Iisefu zemolekyuli zeZeolite ziyakwazi ukubhengeza i-hydrogen chloride, kwaye zinokusebenza ngokubambisana ne-calcium okanye i-zinc stabilizers ukukhulisa uzinzo olupheleleyo lwe-thermal ye-PVC, kunye nokuphucula ukuguquka kombala kunye neengxaki zokuguga kwexesha elide le-PVC.
I-PP Zeolite Stabilizer
I-PP ichaphazeleka kwi-oxidation, i-thermal cracking, okanye i-photodegradation, kwaye ngoko idinga ukongezwa kwe-antioxidants kunye nezinzisi zokushisa. Ngokukodwa kwii-masterbatches ezizaliswe kunye nezixhobo ezihlaziyiweyo, ukungcola (amanzi, i-acids) kuya kukhawulezisa inkqubo yokuthotywa.
I-Zeolite ye-molecular sieves ifunxa amanzi ashiyekileyo kwinkqubo ye-PP yokuphucula ukuzinza, ukufunxa ukungcola okune-acidic njenge-peroxides kunye ne-organic acids ukunyusa i-antioxidant properties, kwaye inokusebenza ngokubambisana nezinye izongezo zokuthintela ukuhanjiswa kobushushu kunye ne-oksijini, ngaloo ndlela ukwandisa ubomi benkonzo ye-PP.
Njengoko i-PP stabilizers okanye i-fillers ye-PP composite, i-molecular sieves ayifuduki okanye iguquguquke, inozinzo oluhle lwe-thermal, kwaye inokuxutywa kunye nezihlunu ze-inorganic okanye izongezo zokuphucula ukusebenza kwezinto zePP.
Zeolite Molecular Sieves For PVC/PP Stabilizers
Iisefu ze-molecular ze-Zeolite ezingasetyenziselwa i-PVC / PP stabilizers ziquka uhlobo lwe-A, P, X kunye no-Y. Nangona kunjalo, uhlobo lwe-molecular sieve (umz . 4 i-zeolite powder) ifaneleke ngakumbi ngenxa yokusetyenziswa kwayo kunye neendleko - ezisebenzayo.
Uhlobo lwe-3A i-zeolite ye-molecular sieve: Ihlala isetyenziswa njenge-desiccants ukuthabatha umswakama kwiinkqubo ze-PVC okanye ze-PP. Kwakhona kunempembelelo ethile ekubambeni i-acids yamahhala (efana ne-trace acids eveliswa yi-oxidative degradation) kwiinkqubo ze-PP.
Uhlobo lwe-4A i-zeolite ye-molecular sieve: Kwi-PVC stabilizers, ithatha iimolekyuli ezincinci ze-hydrogen chloride, ikhusela ukuthotywa kwe-degradation kunye nokuphucula i-thermal discoloration. Kwi-PP stabilizers, ithatha umswakama kunye nokungcola kwe-acidic, ukuphucula ukuzinza kokucubungula kunye nokunciphisa izinga lokuthotywa.
Uhlobo lwe-5A i-zeolite ye-molecular sieve: Ifunxa i-hydrogen chloride kunye neemolekyuli zokungcola ezikhutshwe ngexesha lokucutshungulwa kwe-PVC, kwaye isetyenziselwa ukuphucula umthamo we-adsorption kunye nokumelana nobushushu.
Uhlobo lwe-13X i-zeolite ye-molecular sieve: Inomthamo omkhulu we-adsorption kwaye inokufunxa i-hydrogen chloride, i-sulphur dioxide, kunye nezinye iigesi ezine-asidi. Isetyenziswa ngokubanzi kwiinkqubo zokongeza zePVC okanye njenge-composite stabilizer carrier.