Namhlanje siza kwazisa izinto ezintathu eziphambili ze-epe net, ibandakanya i-LDPE HDPE PP.

一,Umahluko omkhulu phakathi kwe-LDPE (i-polyethylene ephantsi) kunye ne-HDPE (i-polyethylene ephezulu yoxinaniso) ilele kubuninzi babo, iipropati ezibonakalayo, ukusetyenziswa, njl.

1. Ubuninzi kunye nenkangeleko:

Ubuninzi be-LDPE buqhele ukuba phakathi kwe-0.910-0.940g/cm³, ngelixa ubuninzi be-HDPE buphakathi kwe-0.940-0.976g/cm³.

I-LDPE inenkangeleko emhlophe yobisi kwaye iguquguquka ukusa kumlinganiselo othile kumacandelo abhityileyo, ngelixa i-HDPE ngokuqhelekileyo i-opaque kwaye inobisi olumhlophe kunye nenkangeleko ekhanyayo.

2. Iimpawu zomzimba:

I-LDPE ithambile ngokwentelekiso, inokuqina kakuhle, ukungafihli kakuhle, kunye nemvakalelo emtyibilizi. Inozinzo olubi lwe-dimensional ngexesha lokubumba kunye nokucubungula, kwaye kunzima ukudibanisa.

I-HDPE inamandla amakhulu, ukuqina okulungileyo, kunye nokuqina okuqinileyo, kufuphi nePP (i-polypropylene), iqinile kune-PP, kwaye inokumelana nokushisa okulungileyo.

3.Sebenzisa:

I-LDPE ine-viscosity ephantsi yokunyibilika, ulwelo oluhle, kwaye kulula ukuyiqhuba. Kufanelekile ukuveliswa kwemibhobho yamanzi okusela, njl.

I-HDPE ifanelekile ukwenza ibakala lokuzoba, ibakala lokubumba inaliti, ibakala elingenamngxuma kunye nemveliso yefilim evuthelweyo, efana neminatha yokuloba, iibhotile zesiselo kunye neengxowa zokupakisha.

4. Ukumelana nemichiza:

Zombini zinokuchasana okugqwesileyo kuninzi lweekhemikhali zasekhaya kunye nezamashishini, kodwa i-HDPE ixhathisa ngakumbi kwi-asidi, i-alkali corrosion kunye nezinyibilikisi zendalo.

5. Ukumelana nobushushu kunye nokungagugi:

I-LDPE inokumelana nobushushu obuphantsi, ukumelana nokwaluphala kunye nokumelana noxinzelelo lokusingqongileyo njenge-HDPE, kwaye ithanda ukuguga, ukubola kunye nokutshintsha kombala.

I-HDPE inokumelana nobushushu obuphezulu kodwa ikwiqondo eliphantsi lokumelana nobushushu. Into engalunganga kukuba ukuxhathisa kwayo ukwaluphala kunye nokumelana noxinzelelo lwendalo esingqongileyo ayilunganga njenge-LDPE.

二,Umahluko omkhulu phakathi kwePP kunye ne-PE imathiriyeli ngolu hlobo lulandelayo:

1. Izithako: Inxalenye ephambili yePP i-polypropylene, ngelixa icandelo eliphambili le-PE i-polyethylene.

2. Iimpawu: I-PP idla ngokuba yi-translucent colorless solid, ayinavumba kwaye ayinayo inetyhefu, enokumelana nokushisa okuphezulu, ukungafihli, amandla omatshini kunye nezinye iimpawu; I-PE yimathiriyeli eyaziwayo yokutya emhlabeni, ayinayo ityhefu, ayinancasa, Ayinavumba, ivakala ngathi yi-wax, iyahambelana nemigangatho yococeko ekupakishweni kokutya, ine-ductility elungileyo, ayonakaliswa lula, kwaye inotywinwa olubalaseleyo lobushushu.

3. Ubungakanani bokusetyenziswa: I-PP ingasetyenziselwa ukwenza i-greenhouse awnings, iifilimu ze-mulch, iibhotile zenkcubeko, njl., kwaye ingasetyenziselwa ukwenza iibhokisi zokuthengisa ukutya, iingxowa zokutya, njl. , ukubumba inaliti kunye nezinye iindlela, kwaye isetyenziswa kakhulu ekwenzeni iifilimu, iimveliso ezingenanto, njl.