Rarraba High density polyethylene (HDPE) daga LDPE
Babban yawa polyethylene (HDPE) da ƙananan polyethylene (LDPE) nau'ikan polymers polyethylene iri biyu ne tare da takamaiman kaddarorin. Ga manyan bambance-bambancen da ke tsakaninsu:
1. Tsarin Halitta:
HDPE yana da tsarin layi tare da ƙananan reshe, yana haifar da babban yawa da crystallinity. LDPE, a gefe guda, yana da tsari mai rassa sosai kuma mara daidaituwa, yana haifar da ƙananan yawa da ƙarancin crystallinity.
2. Yawan yawa:
Kamar yadda sunan ya nuna, Babban yawa polyethylene (HDPE) yana da mafi girma yawa idan aka kwatanta da ƙananan yawa polyethylene (LDPE). HDPE yawanci yana da kewayon yawa na 0.941-0.965 g/cm³, yayin da LDPE yana da kewayon yawa na 0.910-0.940 g/cm³. Wannan bambance-bambancen da yawa yana shafar abubuwan da suke da shi na zahiri.
3. Ƙarfi da Ƙarfi:
An san HDPE don ƙarfinsa mai ƙarfi da taurinsa. Yana da kyakkyawan ƙarfi mai ƙarfi, juriya mai tasiri, da tsauri, yana sa ya dace da aikace-aikacen da ke buƙatar daidaiton tsari. LDPE, a gefe guda, ya fi sauƙi kuma yana da ƙananan ƙarfi da taurin kai.
4. Matsayin narkewa:
HDPE yana da matsayi mafi girma idan aka kwatanta da LDPE. Matsayin narkewa na HDPE yana daga 120-180 ° C, yayin da LDPE ke narkewa a ƙananan zafin jiki na 105-115 ° C. Wannan bambance-bambance a wurin narkewa yana rinjayar aikin aiwatar da su da aikace-aikace.
5. Nasiha:
HDPE yana da haske ko mara kyau, yayin da LDPE ke bayyana. Wannan shi ne saboda bambanci a cikin crystallinity. Mafi girman crystallinity na HDPE yana watsa haske, yana haifar da bayyanar haske, yayin da ƙananan crystallinity na LDPE ya ba da damar haske ya wuce ta, yana sa shi bayyananne.
6. Juriya na Chemical:
Dukansu HDPE da LDPE suna nuna kyakkyawan juriya na sinadarai. Koyaya, HDPE yana da mafi kyawun juriya ga sinadarai, kaushi, da acid idan aka kwatanta da LDPE. Ana amfani da HDPE da yawa don tankunan ajiya na sinadarai, bututu, da masu layi.
7. Aikace-aikace:
Ana amfani da HDPE sosai a masana'antu daban-daban, gami da marufi (kwalabe, kwantena), gini (bututu, geomembranes), motoci (tankunan mai, bumpers), da aikin gona (bututun ban ruwa, fina-finai na greenhouse). Ana yawan amfani da LDPE don shirya fina-finai, jakunkuna, kwalaben matsi, da sutura.
A taƙaice, HDPE da LDPE sun bambanta dangane da tsarin kwayoyin halitta, yawa, ƙarfi, taurin kai, wurin narkewa, nuna gaskiya, juriya na sinadarai, da aikace-aikace. Fahimtar waɗannan bambance-bambance yana da mahimmanci wajen zaɓar polymer ɗin da ya dace don takamaiman aikace-aikace
