Ịmata ọdịiche dị elu polyethylene (HDPE) site na LDPE
Polyethylene dị elu (HDPE) na obere njupụta polyethylene (LDPE) bụ ụdị abụọ nke polyethylene polymers nwere ihe pụrụ iche. Nke a bụ isi ọdịiche dị n'etiti ha:
1. Ọdịdị Molecular:
HDPE nwere usoro ahịrị ahịrị nwere obere alaka, na-ebute oke njupụta na kristal. LDPE, n'aka nke ọzọ, nwere nnukwu alaka na usoro oge, na-eduga na njupụta dị ala na obere kristal.
2. Njupụta:
Dị ka aha ahụ na-egosi, High density polyethylene (HDPE) nwere njupụta dị elu ma e jiri ya tụnyere obere njupụta polyethylene (LDPE). HDPE na-enwekarị oke njupụta nke 0.941-0.965 g/cm³, ebe LDPE nwere oke njupụta nke 0.910-0.940 g/cm³. Nke a dị iche na njupụta na-emetụta ọdịdị anụ ahụ ha.
3. Ike na Isi Ike:
A maara HDPE maka ike ya dị elu na isi ike. Ọ nwere ike ịgbatị nke ọma, nguzogide mmetụta, na nkwụsi ike, na-eme ka ọ dabara maka ngwa ndị chọrọ iguzosi ike n'ezi ihe. LDPE, n'aka nke ọzọ, na-agbanwe agbanwe ma nwee ike dị ala na isi ike.
4. Ebe agbaze:
HDPE nwere ebe mgbaze dị elu ma e jiri ya tụnyere LDPE. Ebe mgbaze nke HDPE sitere na 120-180°C, ebe LDPE na-agbaze na oke okpomọkụ dị ala nke 105-115°C. Nke a dị iche na-agbaze ebe na-emetụta ha processability na ngwa.
5. Nghọta:
HDPE bụ translucent ma ọ bụ opaque, ebe LDPE bụ uzo. Nke a bụ n'ihi ọdịiche dị na kristal ha. HDPE dị elu kristal na-agbasa ìhè, na-eme ka ọ pụta ìhè, ebe LDPE dị ala kristal na-enye ohere ka ìhè gafere, na-eme ka ọ pụta ìhè.
6. Nguzogide kemịkalụ:
Abụọ HDPE na LDPE na-egosipụta ezigbo nguzogide kemịkal. Agbanyeghị, HDPE nwere nguzogide kemịkalụ, ihe mgbaze na acid karịa LDPE. A na-ejikarị HDPE maka tankị nchekwa kemịkalụ, ọkpọkọ, na liners.
7. Ngwa:
A na-eji HDPE n'ọtụtụ ụlọ ọrụ dị iche iche, gụnyere nkwakọ ngwaahịa ( karama, arịa), ihe owuwu (pipe, geomembranes), ụgbọ ala ( tankị mmanụ , bumpers ), na ọrụ ugbo (paịpụ mmiri, ihe nkiri griin haus). A na-ejikarị LDPE maka nkwakọ ihe nkiri, akpa, karama afanye, na mkpuchi.
Na nchịkọta, HDPE na LDPE dị iche n'ihe gbasara usoro ihe omimi, njupụta, ike, isi ike, ebe mgbaze, nghọta, nguzogide kemịkalụ, na ngwa. Ịghọta ọdịiche ndị a dị oke mkpa n'ịhọrọ polymer kwesịrị ekwesị maka ngwa ngwa
