Ọtụtụ ndị ahịa site na webụsaịtị anyị ka ekwentị ndụmọdụ na-ewu ewu nke kpara akpa ụdị, mgbe ahụ, taa DongLai kpara akpa Xiaobian na-akọwa ewu ewu nke kpara akpa ụdị.
Ụdị akpa kpara akpa
A na-akpọkwa akpa akpụkpọ anụ akpa kpara akpa. Ọ bụ ụdị rọba, a na-ejikarị eme nkwakọ ngwaahịa. Akụrụngwa bụ n'ozuzu polyethylene, polypropylene na ndị ọzọ kemịkal plastic ngwaọrụ. Nke a bụ okwu mmalite dị nkenke maka ụdị akpa a kpara akpa na ojiji.
Polyethylene bụ isi akụrụngwa nke mmepụta mba ọzọ, polypropylene bụ isi ngwaahịa nke ụlọ. Ọ bụ resin thermoplastic mere site na polymerization nke ethylene. Na ụlọ ọrụ, ọ na-agụnye copolymers nke ethylene nwere obere ego nke α-olefin. Polyethylene enweghị isi, anaghị egbu egbu, waxy, nwere ezigbo nguzogide okpomọkụ dị ala (opekempe na-arụ ọrụ ruo -70 ~ -100 ℃), ezigbo nkwụsi ike nke kemịkalụ, ọtụtụ acid na alkali corrosion resistance (acid resistance, oxidation), insoluble insoluble in general solvents na ụlọ okpomọkụ, obere mmiri absorption, ezigbo ihe mkpuchi ọkụ eletrik; Otú ọ dị, polyethylene na-enwe mmetụta nke ukwuu maka nrụgide gburugburu ebe obibi (mmetụta kemịkalụ na n'ibu) ma na-eguzogide ọgwụ na-adịghị mma maka ịka nká. Ngwongwo nke polyethylene dịgasị iche iche na ụdị dị iche iche, tumadi dabere n'ụdị molekul na njupụta. Ụzọ mmepụta dị iche iche nwere ike ịmepụta njupụta dị iche iche (0.91-0.96g/cm3). Enwere ike ịhazi polyethylene n'otu ụzọ ahụ a na-akpụzi plastik thermoplastic nkịtị (lee nhazi plastik). A na-eji ya eme ihe na mmepụta ihe nkiri, arịa, pipeline, otu waya, waya na eriri, ihe ndị dị mkpa kwa ụbọchị, wdg. Enwere ike iji ya mee ihe dị ka ihe mkpuchi mkpuchi elu ugboro ugboro maka TV, radar, wdg Site na mmepe nke ụlọ ọrụ petrochemical, mmepụta polyethylene emepụtawo ngwa ngwa, na-aza ajụjụ banyere 1/4 nke ngụkọta mmepụta plastik. N'afọ 1983, ikike mmepụta nke polyethylene zuru ụwa ọnụ bụ 24.65 metric ton, ụlọ ọrụ a na-ewu nwere ikike nke 3.16 metric ton.
Polypropylene (PP)
Resin thermoplastic mere site na polymerization nke propylene. Enwere ụdị nhazi atọ, ya bụ, isotopic zuru oke, atactic na indirect. Ngwaahịa ụlọ ọrụ na-abụkarị nke ihe owuwu isotopic mejupụtara. Polypropylene tinyekwara copolymer nke propylene na obere ethylene. Ọ na-abụkarị translucent, siri ike na-enweghị agba, isi na-adịghị egbu egbu. N'ihi iwu nhazi ya, kristal dị elu, ebe mgbaze ruo 167 ℃, nguzogide okpomọkụ. Site na njupụta nke 0.90g/cm3, ọ bụ rọba dị mfe nghọta. Nguzogide corrosion, ike mgbaka 30MPa, ike, siri ike na nghọta dị mma karịa polyethylene. Mwepu bụ obere okpomọkụ mmetụta nguzogide adịghị mma, dị mfe ịka nká, ma enwere ike gbanwee ma gbakwunye antioxidant iji merie.
Agba nke akpa a kpara akpa na-acha ọcha ma ọ bụ na-acha ọcha n'ozuzu, anaghị egbu egbu na enweghị ụtọ, mmerụ ahụ na-emerụ ahụ mmadụ na-adịkarị obere. Ọ bụ ezie na e ji plastik kemịkal dị iche iche mee ya, mana nchebe gburugburu ebe obibi siri ike, ike imegharị ihe;
A na-eji akpa akpa akpa, nke a na-ejikarị eme ihe maka ịkwakọ ngwaahịa dị iche iche, na-ejikwa ya na ụlọ ọrụ;
Akpa kpara akpa na polypropylene resin dị ka isi akụrụngwa, extrusion na gbatịa n'ime ewepụghị eri, wee kpara n'ime a akpa.
Ngwakọta rọba kpara akpa na akwa akwa rọba dị ka ihe bụ isi, site na ịkpụzi eruba.
Ejiri ya maka ịkwakọ ntụ ntụ ma ọ bụ ihe siri ike granular na isiokwu na-agbanwe agbanwe. A na-ekewa akpa rọba ihe mejupụtara akpa akwa abụọ n'otu akpa na atọ n'otu akpa dịka ihe mejupụtara ya siri dị.
Dị ka usoro ịkwa akwa si dị, enwere ike kewaa ya n'ime akpa akwa akwa akwa, akpa n'akụkụ akụkụ, ntinye akpa na akpa akwa akwa glu.
Dabere na obosara dị irè nke akpa ahụ, enwere ike kewaa ya na 450, 500, 550, 600, 650 na 700 mm. Ndị otu abụọ ga-ekwenye nkọwapụta pụrụ iche.
N'elu bụ ewu ewu nke obere mebere maka ụdị nile nke finishing nke kpara akpa metụtara consulting, site na nkesa nke ọdịnaya, ka popularization nke kpara akpa ụdị nwere ụfọdụ cognitive, ma ọ bụrụ na ị chọrọ ịbanye miri n'ime akpa nke ahịa ozi, nwere ike ịkpọtụrụ onye na-ere ahịa na ụlọ ọrụ anyị, ma ọ bụ n'ebe ọwụwa anyanwụ na kpara akpa na-na-ntụpọ nnyocha, ibe nkwurịta okwu na-atụle n'akwụkwọ a.
Oge nzipu: Jan-15-2021