1. Maka echiche na-eguzogide okpomọkụ,polypropylene okpomọkụ na-eguzogide dị elu karịa polyethylene.Polypropylene agbaze okpomọkụ bụ banyere 40% -50% elu karịa polyethylene, banyere 160-170 ℃, otú ngwaahịa nwere ike igba ogwu na ihe karịrị 100 ℃, na-enweghị mpụga ike.PP eriri 150 ℃ adịghị nrụrụ.A na-eji polypropylene mara ya site na njupụta dị ala, ihe arụ ọrụ dị elu karịa polyethylene na nkwụsi ike pụtara ìhè.
2. N'ihi na echiche nke ala okpomọkụ eguzogide analysis, ala okpomọkụ-eguzogide nke polypropylene bụ ike ọgwụgwụ karịa polyethylene, 0 ℃ mmetụta ike bụ nanị ọkara nke 20 ℃, na polyethylene kenkuwa okpomọkụ nwere ike n'ozuzu iru -50 ℃ n'okpuru;Site na mmụba nke ịdị arọ molekul, nke kacha nta nwere ike iru -140 ℃.Ya mere,ma ọ bụrụ na ngwaahịa ndị dị mkpa ka-eji na ala okpomọkụ gburugburu ebe obibi, ma ọ bụdị ka o kwere mee ịhọrọ polyethylene dị ka akụrụngwa.
3. Maka echiche nke iguzogide ịka nká, mgbochi ịka nká nke polypropylene adịghị ike karịa nke polyethylene.Polypropylene nwere usoro yiri nke ahụ na polyethylene, ma n'ihi na o nwere agbụ n'akụkụ nke mejupụtara methyl, ọ na-adị mfe oxidized na degraded n'okpuru omume nke ULTRAVIOLET ìhè na okpomọkụ ike.Ngwaahịa polypropylene a na-ahụkarị nke na-adị mfe ịka nká na ndụ kwa ụbọchị bụ akpa a kpara akpa, nke dị mfe imebi mgbe anyanwụ na-ekpuchi ya ruo ogologo oge. N'ezie, polyethylene na-eguzogide ịka nká dị elu karịa polypropylene, ma e jiri ya tụnyere ihe ndị ọzọ na-emepụta ihe. arụmọrụ ya abụghị ihe dị ịrịba ama, n'ihi na e nwere ọnụ ọgụgụ dị nta nke okpukpu abụọ na ether bond na polyethylene molecules, ihu igwe na-eguzogide ya adịghị mma, anyanwụ, mmiri ozuzo ga-emekwa ka ịka nká.
4. Maka echiche nke mgbanwe, ọ bụ ezie na polypropylene nwere ike dị elu, mgbanwe ya adịghị mma, nke bụkwa mmetụta na-adịghị mma na-eguzogide site n'echiche nkà na ụzụ.

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Oge nzipu: Feb-28-2022