Namuhla sizokwethula izinto ezintathu ezibalulekile ze-epe net, kufaka phakathi i-LDPE HDPE PP.

一,Umehluko omkhulu phakathi kwe-LDPE (i-polyethylene e-low density) ne-HDPE (i-polyethylene ephakeme kakhulu) ilele ekumineni kwayo, izakhiwo zomzimba, ukusetshenziswa, njll.

1. Ukuminyana nokubukeka:

Ukuminyana kwe-LDPE kuvamise ukuba phakathi kuka-0.910-0.940g/cm³, kuyilapho ukuminyana kwe-HDPE kuphakathi kuka-0.940-0.976g/cm³.

I-LDPE inokubukeka okumhlophe kobisi futhi ishintshashintsha ngokwezinga elithile ezingxenyeni ezincanyana, kuyilapho i-HDPE ngokuvamile i-opaque futhi inokubukeka okumhlophe kobisi nokushintshashintshayo.

2. Izakhiwo zomzimba:

I-LDPE ithambile uma kuqhathaniswa, inokuqina okuhle, ukukhanya okuhle, nokuzwa okushelelayo. Inokuqina okungalungile kwe-dimensional ngesikhathi sokubunjwa nokucubungula, futhi kunzima ukuyixhuma.

I-HDPE inamandla aphezulu, ukuqina okuhle, nokuqina okuqinile, eduze ne-PP (i-polypropylene), iqinile kune-PP, futhi inokumelana okuhle kwezinga lokushisa.

3.Sebenzisa:

I-LDPE ine-viscosity encibilikayo ephansi, i-fluidity enhle, futhi kulula ukuyicubungula. Kufanelekile ukukhiqizwa kwamapayipi amanzi okuphuza, njll.

I-HDPE ifanele ukwenza ibanga lokudweba, ibanga lokubumba umjovo, ibanga elingenalutho kanye nemikhiqizo yebanga lefilimu ephephethiwe, njengamanethi okudoba, amabhodlela eziphuzo nezikhwama zokupakisha.

4. Ukumelana namakhemikhali:

Zombili zinokumelana okuhle kakhulu kumakhemikhali amaningi asekhaya nawezimboni, kodwa i-HDPE imelana kakhulu ne-asidi, ukugqwala kwe-alkali nezincibilikizeli eziphilayo.

5. Ukumelana nokushisa nokumelana nokuguga:

I-LDPE inokumelana nokushisa okuphansi, ukumelana nokuguga kanye nokumelana nokuqhekeka kwemvelo njenge-HDPE, futhi ijwayele ukuguga, ukubola nokushintsha umbala.

I-HDPE inokumelana okuhle kwezinga lokushisa eliphakeme kodwa ukumelana nokushisa okuphansi okuphansi. Okubi ukuthi ukumelana kwayo nokuguga kanye nokumelana nokuqhekeka kwemvelo akukuhle njenge-LDPE.

二,Umehluko omkhulu phakathi kwezinto ze-PP kanye ne-PE imi kanje:

1. Izithako: Ingxenye eyinhloko ye-PP i-polypropylene, kuyilapho ingxenye eyinhloko ye-PE i-polyethylene.

2. Izici: I-PP imvamisa iqinile engenambala ekhanyayo, engenaphunga futhi engenabuthi, enokumelana nokushisa okuphezulu, obala, amandla emishini nezinye izici; I-PE iwukuthintana nokudla okwaziwayo emhlabeni, ayinabo ubuthi, ayinambitheki, Ayinaphunga, izwakala njengengcina, ithobelana nezindinganiso zokuhlanzeka zokupakishwa kokudla, inobuthi obuhle, ayilinyazwa kalula, futhi inokuvaleka kahle kokushisa.

3. Ububanzi bokusetshenziswa: I-PP ingasetshenziswa ukwenza ama-awnings omoya obamba ukushisa, amafilimu e-mulch, amabhodlela amasiko, njll., futhi ingasetshenziswa ukwenza amabhokisi okuthengisa ukudla, izikhwama zokudla, njll. , ukubumba umjovo nezinye izindlela, futhi isetshenziswa kabanzi ekwenzeni amafilimu, imikhiqizo engenalutho, njll.