Izinto zekhebula le-PE

I-PE iyinhlanganisela ye-polyethylene, ikakhulukazi ihlukaniswe i-polyethylene ephezulu (i-HDPE), i-polyethylene ephakathi nendawo (MDPE), i-low density polyethylene (LDPE) kanye ne-linear low density polyethylene (LLDPE).

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isici somkhiqizo

I-1.HDPE iwuhlobo lwe-crystallinity ephezulu, i-non-polar thermoplastic resin ekhiqizwa yi-ethylene copolymerization. Ukubukeka kwe-HDPE yasekuqaleni kumhlophe qhwa, futhi ishintshashintsha ngokwezinga elithile esigabeni esincane. Inokumelana okuhle kakhulu namakhemikhali amaningi asekhaya nawezimboni, futhi ingamelana nokugqwala nokuncibilika kwama-oxidants aqinile (i-nitric acid egxilile), usawoti we-asidi kanye ne-alkali nezincibilikisi eziphilayo (i-carbon tetrachloride). I-polymer ayimumbi umswakama futhi inokumelana okuhle kwamanzi ku-steam, engasetshenziselwa ukuvikela umswakama nokuvikela amanzi.

I-2.MDPE ibonakala ngokuphikiswa kokucindezeleka kwemvelo nokugcinwa kwamandla esikhathi eside. Ubuningi obuhlobene be-MDPE bungu-0.926-0.953, i-crystallinity ingama-70% -80%, isisindo samangqamuzana esijwayelekile singama-200,000, amandla aqinile angama-8-24 mpa, ubude ngesikhathi sekhefu ngu-50% -60%, izinga lokushisa elincibilikayo 126-135 ℃, futhi izinga lokuncibilika lokuncibilika liyi-0.1-35 g / 10 imizuzu. Izinga lokushisa lokushintsha elishisayo (0.46 mpa)49-74℃.

3. I-polyethylene ene-low density iwuhlobo olulula kakhulu ku-polyethylene resin. Uma kuqhathaniswa ne-polyethylene ephezulu-density, ubucwebe bayo (55% -65%) kanye nephoyinti lokuthambisa (90-100 ℃) liphansi. Inokuthamba okuhle, ukunwebeka, ukucaca, ukumelana nokubanda kanye nokucutshungulwa. Ukuzinza kwayo kwamakhemikhali kuhle, kungamelana ne-asidi, i-alkali kanye nesisombululo esinamanzi sikasawoti; Ukufakwa kahle kukagesi kanye nokungena kwegesi; Ukumuncwa kwamanzi aphansi; Kulula ukushisa. Impahla ithambile, inokwandiswa okuhle, ukwahlukanisa ugesi, ukuzinza kwamakhemikhali, ukusebenza kokucubungula kanye nokumelana nezinga lokushisa eliphansi (ukumelana no -70 ℃).

4. Uma kuqhathaniswa ne-LDPE, i-LLDPE inezinzuzo zamandla aphezulu, ukuqina okuhle, ukuqina okuqinile, ukumelana nokushisa, ukumelana nokubanda, njll. ama-solvents e-organic nokunye.

Qaphela: Izinhlayiya zepulasitiki ze-PE zisetshenziswa kabanzi futhi zidinga ukwenziwa ngokwezifiso ngokuya ngezidingo zamakhasimende ezimeni ezahlukahlukene.

Ipharamitha yomkhiqizo

Igama	I-HDPE	I-LDPE	LLDPE
Iphunga, ubuthi	Ayinabuthi, ayinambitheki, ayinaphunga	Ayinabuthi, ayinambitheki, ayinaphunga	Ayinabuthi, ayinambitheki, ayinaphunga
Ukuminyana	0.940~0.976g/cm³	0.910~0.940g/cm³	0.915~0.935g/cm³
I-Crystallinity	85%-65%	45-65%	55-65%
Isakhiwo samangqamuzana	Iqukethe kuphela ibhondi ye-carbon-carbon ne-carbon-hydrogen, edinga amandla engeziwe ukuze inqamuke	I-polymer inesisindo esincane samangqamuzana futhi idinga amandla amancane ukuze iphule	Isakhiwo somugqa, amaketanga amagatsha ambalwa, amaketanga amafushane, adinga amandla amancane ukuze aphule
Iphuzu lokuthambisa	125-135 ℃	90-100 ℃	94-108℃
Impahla yemishini	Amandla aphezulu, ukuqina okuhle, ukuqina okuqinile	Amandla amancane emishini	Amandla aphezulu, ukuqina okuhle, ukuqina okuqinile
Amandla aqinile	Phezulu	Phansi	Phezulu
Ukwandisa ngesikhathi sekhefu	Phezulu	Phansi	Phezulu
Amandla omthelela	Phezulu	Phansi	Phezulu
Ukusebenza kokuvikela umswakama nokungangeni kwamanzi	Inokungena kahle emanzini, umhwamuko wamanzi nomoya, ukumuncwa kwamanzi okuphansi kanye nokungangeni kahle kwamanzi.	Umswakama obuthakathaka kanye nokufakwa komoya	Inokungena kahle emanzini, umhwamuko wamanzi nomoya, ukumuncwa kwamanzi okuphansi kanye nokungangeni kahle kwamanzi.
I-Acid, i-alkali, ukugqwala, ukumelana ne-solvent ye-organic	Imelana nokugqwala okuqinile kwe-oxidant; Ukumelana ne-asidi, i-alkali kanye nosawoti ohlukahlukene; Ayincibiliki kunoma iyiphi i-solvent ye-organic, njll.	I-Acid, i-alkali, isixazululo sikasawoti ukumelana nokugqwala, kodwa ukumelana ne-solvent	Imelana ne-asidi, i-alkali ne-organic solvents
Ukumelana nokushisa/ukubanda	Ukushisa okuhle nokumelana nokubanda, ekamelweni lokushisa ngisho -40F izinga lokushisa eliphansi, ukumelana nomthelela omuhle kakhulu, izinga lokushisa eliphansi lokushisa eliphansi	Ukumelana nokushisa okuphansi, izinga lokushisa eliphansi le-embrittlement lokushisa	Ukushisa okuhle nokumelana nokubanda Izinga lokushisa eliphansi le-embrittlement lokushisa
Ukumelana nokuqhekeka kokucindezeleka kwemvelo	Kuhle	Okungcono	Kuhle