Izinto zentambo ye-PE

I-PE i-polyethylene ikhompawundi, ngokukodwa ihlulwe kwi-polyethylene ephezulu (i-HDPE), i-polyethylene ephakathi (MDPE), i-polyethylene ephantsi (i-LDPE) kunye ne-linear low density polyethylene (LLDPE).

Qhagamshelana nathi

Iinkcukacha zeMveliso

Iithegi zeMveliso

uphawu lwemveliso

I-1.HDPE luhlobo lwe-crystallinity ephezulu, i-non-polar thermoplastic resin eveliswa yi-ethylene copolymerization. Inkangeleko ye-HDPE yoqobo imhlophe qhwa, kwaye iguquguquka kwinqanaba elithile kwicandelo elincinci. Inokumelana okugqwesileyo kuninzi lweekhemikhali zasekhaya kunye nezoshishino, kwaye ziyakwazi ukuxhathisa ukubola kunye nokuchithwa kwee-oxidants ezomeleleyo (i-nitric acid egxininisiweyo), i-asidi kunye neetyuwa zealkali kunye nezinyibilikisi ze-organic (carbon tetrachloride). I-polymer ayifuni ukufuma kwaye inokumelana kakuhle namanzi kwi-steam, engasetyenziselwa ukufuma kunye nokukhuselwa kwamanzi.

I-2.MDPE ibonakaliswe ngokuxhatshazwa koxinzelelo lwendalo kunye nokugcinwa kwamandla exesha elide. Uxinzelelo olunxulumene ne-MDPE yi-0.926-0.953, i-crystallinity yi-70% -80%, i-avareji ye-molecular weight 200,000, amandla okuqina yi-8-24 mpa, ubude bekhefu yi-50% -60%, ukushisa okunyibilikayo I-126-135 ℃, kunye nesantya sokunyibilika kwe-0.1-35 g / imizuzu eyi-10. Thermal deformation lobushushu (0.46 mpa)49-74℃.

3. I-polyethylene ye-low density yintlobo elula kakhulu kwi-polyethylene resin. Xa kuthelekiswa ne-polyethylene ephezulu, i-crystallinity yayo (55% -65%) kunye ne-softening point (90-100 ℃) iphantsi. Inokuthamba okuhle, ukwandiswa, ukungafihli, ukumelana nokubanda kunye nokuqhubekeka. Ukuzinza kwayo kweekhemikhali kulungile, kunokumelana ne-asidi, i-alkali kunye netyuwa isisombululo se-aqueous; Ukufakwa kakuhle kombane kunye nokungena kwegesi; Ukufunxa amanzi aphantsi; Kulula ukutshisa. Ipropathi ithambile, inokwandiswa okulungileyo, ukugquma kombane, ukuzinza kweekhemikhali, ukusebenza kokucubungula kunye nokumelana nokushisa okuphantsi (ukumelana ne -70 ℃).

4. Xa kuthelekiswa ne-LDPE, i-LLDPE ineenzuzo zamandla aphezulu, ukuqina okulungileyo, ukuqina okuqinileyo, ukuxhathisa ubushushu, ukumelana nokubanda, njl. izinyibilikisi eziphilayo njalo njalo.

Qaphela: Iincinci zeplastiki ze-PE zisetyenziswa ngokubanzi kwaye zifuna ukulungiswa ngokweemfuno zabathengi kwiimeko ezahlukeneyo.

Ipharamitha yemveliso

Igama	HDPE	I-LDPE	LLDPE
Ivumba, ubuthi	Ayinatyhefu, ayinancasa, ayinavumba	Ayinatyhefu, ayinancasa, ayinavumba	Ayinatyhefu, ayinancasa, ayinavumba
Ukuxinana	0.940~0.976g/cm³	0.910~0.940g/cm³	0.915~0.935g/cm³
Ubukhazikhazi	85%-65%	45-65%	55-65%
Ubume bemolekyuli	Iqulethe kuphela iibhondi ze-carbon-carbon kunye ne-carbon-hydrogen, ezifuna amandla amaninzi ukuze ziqhawule	I-polymer inobunzima obuncinci be-molecular kwaye idinga amandla amancinci ukuba aphule	Isakhiwo somgca, amatyathanga amancinci amancinci, amakhonkco amafutshane, afuna amandla amancinci okuqhawula
Indawo yokuthambisa	125-135℃	90-100℃	94-108℃
Ipropathi yoomatshini	Amandla aphezulu, ukuqina okuhle, ukuqina okuqinileyo	Amandla omatshini angalunganga	Amandla aphezulu, ukuqina okuhle, ukuqina okuqinileyo
Tensile strength	Phezulu	Phantsi	Phezulu
Ukwandisa ngexesha lekhefu	Phezulu	Phantsi	Phezulu
Amandla empembelelo	Phezulu	Phantsi	Phezulu
Ubungqina bokufuma kunye nokusebenza kobungqina bamanzi	Inokungena kakuhle emanzini, umphunga wamanzi kunye nomoya, ukufunxeka kwamanzi aphantsi kunye nokumelana nokungena kakuhle.	Ukufuma okungalunganga kunye nokugquma umoya	Inokungena kakuhle emanzini, umphunga wamanzi kunye nomoya, ukufunxeka kwamanzi aphantsi kunye nokumelana nokungena kakuhle.
I-Acid, i-alkali, i-corrosion, i-organic solvent resistance	Ukuxhathisa kwi-corrosion eyomeleleyo ye-oxidant; Ukumelana ne-asidi, i-alkali kunye neetyuwa ezahlukeneyo; I-insoluble kuyo nayiphi na i-solvent ye-organic, njl.	I-Acid, ialkali, isisombululo setyuwa kwi-corrosion resistance, kodwa ukunganyangeki kwe-solvent	Ukumelana ne-asidi, i-alkali kunye ne-organic solvents
Ukumelana nobushushu/ukubanda	Ubushushu obuhle kunye nokumelana nokubanda, kwiqondo lobushushu begumbi kunye nakwi -40F ubushushu obuphantsi, ukuxhathisa impembelelo ebalaseleyo, ubushushu obuphantsi bobushushu obusezantsi	Ukumelana nobushushu obuphantsi, ubushushu obuphantsi be-embrittlement lobushushu	Ubushushu obuhle kunye nokumelana nokubanda Ubushushu obuphantsi be-embrittlement
Ukumelana nokuqhekeka koxinzelelo lwendalo	Kulungile	Ngcono	Kulungile