1. Kwindawo yokujonga ukumelana nobushushu,i-polypropylene ukumelana nobushushu kuphezulu kune-polyethylene.Ubushushu obunyibilikayo bePolypropylene bumalunga ne-40% -50% ngaphezulu kwepolyethylene, malunga ne-160-170 ℃, ngoko ke iimveliso zinokuvalwa inzala ngaphezulu kwe-100℃, ngaphandle kwamandla angaphandle.Intambo yePP 150℃ ayikhubazekanga.I-Polypropylene ibonakaliswe ngobuninzi obuphantsi, iipropati eziphezulu zemishini kwi-polyethylene kunye nokuqina okubalaseleyo.
2. Kuba imbono yohlalutyo ubushushu obuphantsi ubushushu, ukumelana nobushushu obuphantsi polypropylene buthathaka ngaphezu polyethylene, 0℃ amandla impembelelo sisiqingatha kuphela 20℃, kunye nobushushu polyethylene brittle ngokubanzi ukufikelela -50℃ ngezantsi;Ngokunyuka kobunzima bemolekyuli, ubuncinci bunokufikelela kwi-140 ℃.Ngoko ke,ukuba iimveliso kufuneka zisetyenziswe kwindawo yobushushu obuphantsi, okanyekangangoko kunokwenzeka ukukhetha i-polyethylene njengento ekrwada.
3. Ngombono wokumelana nokuguga, ukumelana nokuguga kwe-polypropylene buthathaka kune-polyethylene.I-Polypropylene inesakhiwo esifanayo ne-polyethylene, kodwa ngenxa yokuba ine-chain chain ehlanganiswe ne-methyl, kulula ukuba i-oxidized kwaye ithotywe phantsi kwesenzo sokukhanya kwe-ULTRAVIOLET kunye namandla okushisa.Iimveliso ze-polypropylene eziqhelekileyo ezilula ukuguga kubomi bemihla ngemihla ziyizikhwama ezilukiweyo, ekulula ukuziqhekeza xa zibekwe elangeni ixesha elide.Enyanisweni, ukumelana nokuguga kwe-polyethylene kuphezulu kune-polypropylene, kodwa xa kuthelekiswa nezinye izinto eziluhlaza, ukusebenza kwayo ayibalanga kakhulu, kuba kukho inani elincinci leebhondi eziphindwe kabini kunye neebhondi ze-ether kwiimolekyuli ze-polyethylene, ukuchasana kwayo kwemozulu akulunganga, ilanga, imvula nayo iya kubangela ukuguga.
4. Ngombono wokuguquguquka, nangona i-polypropylene inamandla amakhulu, ukuguquguquka kwayo akubi, okukwayiyo ukuxhathisa impembelelo embi ukusuka kwindawo yezobugcisa.

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Ixesha lokuposa: Feb-28-2022