Ama-polypropylene (PP) ama-resins angama-polymers we-thermoplastic, okusho ukuthi angase akheke ngokushisa futhi aphinde ancibilike ngaphandle kokulahlekelwa izici zawo zangaphakathi. I-Thermoplastics ihluke ngale ndlela kuma-thermosets, ashintsha unomphela ngemva kokuqina. I-Thermoplastics ivamise ukugaywa kabusha ngenxa yalesi sizathu. Amanye ama-thermoplastics ahlanganisa i-polyethylene, i-polyvinyl chloride, i-polystyrene, i-polycarbonate, i-acrylic, i-acrylonitrile butadiene styrene, inayiloni, ne-polytetrafluoroethylene.
Ama-polypropylene resins avamise ukuba yi-opaque, ama-polymers ane-low-density anezici ezinhle kakhulu ze-thermoforming kanye nezici zokubumba umjovo. Uma kuqhathaniswa namanye ama-polymers, i-material inebanga lokushisa elincane kakhulu, iba brittle ngaphansi kuka-20°C futhi ingasebenziseki emazingeni okushisa angaphezu kuka-120°C. Incintisana ngokuyinhloko ngokumelene ne-polyethylene futhi ingenziwa ibe sobala ezintweni ezifana namaphakheji okubona, kuyilapho i-polyethylene ingenziwa kuphela ikhanye, njengasezijekeni zobisi, isibonelo. I-Polypropylene ayikwazi ukufana nokucaca okubonakalayo kwama-polymers njenge-polycarbonate kodwa yenza kahle impela.
Ama-polypropylene homopolymers nama-polypropylene copolymers enza iningi lama-polypropylene formulations namuhla. I-homopolymer iyibanga elisetshenziswa ngokujwayelekile, elihlanganisa i-propylene monomer eyodwa, futhi iyi-semi-crystalline ngesimo. Izinhlobonhlobo zama-copolymers ayatholakala, okuthi, uma eqhathaniswa ne-homopolymer, akhule ukuthamba, ukumelana nomthelela ongcono, ukuqina nokuqina okungcono, amandla athuthukisiwe wezinga lokushisa eliphansi, kanye nokumelana nokuqhekeka okungcono. Ibanga lokusetshenziswa okujwayelekile yilelo elinconyelwe ukuthintana nokudla kanye nezinhlelo zokusebenza lapho ukuqina kubalulekile. Izingxube ezithile zama-co- nama-homopolymers ziphumela ezintweni ezinamandla omthelela omkhulu (i-PP impact copolymer); noma, ehlanganiswe ne-ethylene ne-butane, izakhiwo eziphakeme zokuvala ifilimu (i-PP terpolymer); noma izakhiwo zemishini ezithuthukisiwe ezifana namandla okuncibilika nokunwebeka (PP HMS). I-Polypropylene itholakala njengegwebu elinwetshiwe, eliphansi, elivaliwe lamaseli (EPP).
Izinga lokushisa eliphansi le-polypropylene lenza kube nzima umshini futhi kuncane okwenziwe ukukhiqiza imicu elungele ukuphrinta kwe-3D. Kodwa-ke, i-viscosity yayo ephansi emazingeni okushisa ancibilikayo iyenza ifaneleke kahle ekusetshenzisweni kwe-extrusion kanye nokubumba, okuhlanganisa ukubunjwa kokushaywa, ukubunjwa kokucindezela, kanye ne-rotomolding, isibonelo.
Ngokungafani nama-thermoplastics amaningi, i-polypropylene ayiwumumbi kalula umswakama, futhi ngaphansi kwezimo ezijwayelekile ingabunjwa ngaphandle kokuthi iqale ngaphansi komjikelezo wokomisa.
| Hlaziya iphrojekthi |
kufanelekile Inkomba |
umphumela |
ukuhlolwa indlela |
|
Ukubonakala kwe-Granular Izinhlayiya zemibala, umuntu ngamunye/kg Izinhlamvu ezinkulu nezincane, g/kg |
≤10 ≤10 |
0 0 |
SH/T 1541-2006 |
|
Melt mass flow rate(2.16kg),g/ 10min |
25-35 | 27 | Q/SY DS 0513 |
| Ukucindezeleka kokunwetshwa kwesivuno, i-MP a | ≥21.0 | 23.5 | Q/SY DS 0515 |
| I-modulus yokugoba, i-GPa | ≥1.0 | 1.401 | Q/SY DS 0516 |
| I-Izod Impact Amandla angu-23℃,J/m | ≥80 | 117 | Q/SY DS 0517 |
| I-Izod Impact Strength-20℃,J/m |
okwangempela abalinganisa |
75.5 | Q/SY DS 0517 |
| Inkomba ephuzi | ≤4.0 | -4.6 | Q/SY DS 0514 |
| Umlotha wokusanhlamvu,% |
okwangempela isilinganiso |
0.0281 | I-GB / T 9345.1-2008 |
Ukusetshenziswa okuyinhloko kwe-propylene kungahlukaniswa ngezigaba ezinhlanu: ukubumba komjovo we-PP, umdwebo we-PP, i-PP fiber, ifilimu ye-PP, ipayipi le-PP.
1. PP umjovo ekubumbeni
Ipulasitiki ye-PP isetshenziswa kakhulu ezintweni zasendlini ezincane, amathoyizi, imishini yokuwasha, izingxenye zezimoto nokunye.
2. PP wire umdwebo
Umdwebo wezintambo ze-polypropylene usetshenziswa kakhulu emikhiqizweni elukiwe yepulasitiki, ukusetshenziswa kwansuku zonke kwezikhwama zesitsha, izikhwama ezilukiweyo, izikhwama zokudla kanye nezikhwama ezisobala ziyimikhiqizo yezinto ezibonakalayo zokudweba ngocingo lwe-PP.
3. PP ifilimu
Ifilimu ye-polypropylene ngokuvamile ihlukaniswe ngefilimu ye-BOPP, ifilimu ye-CPP, ifilimu ye-IPP, ifilimu ye-PP isetshenziswa kakhulu ekufakweni kokudla.
4. I-PP fiber
I-polypropylene fiber iwuhlobo lomkhiqizo wefayibha owenziwe nge-polypropylene ngokuncibilika ngokuphotha. Ikakhulukazi esetshenziswa ekuhlobiseni, izingubo zokugqoka kanye neminye imikhakha, kusukela ekusetshenzisweni kwenqubomgomo yezingane ezimbili ngo-2011, ama-wet wipes, amanabukeni kanye neminye imikhiqizo kamama nezinsana iyakhuphuka, ukushoda kwempahla ye-fiber yasekhaya.
5. Ipayipi le-PP
Ngenxa yokumelana nokushisa okungeyona ubuthi nokushisa okuphezulu kwe-polypropylene, impahla yepayipi ye-PP isetshenziswa kakhulu ekunikezeni amanzi nohlelo lokufudumeza, uma kuqhathaniswa nepayipi le-PE, isisindo sepayipi le-PP silula, ukuthutha okulula, nokusebenza kokuvikela imvelo kungcono, kungenziwa kabusha. .
Ukupakishwa kusezikhwameni zepulasitiki ezingama-25kg, ezingathuthwa ngololiwe noma ngolwandle futhi zigcinwe endaweni yokugcina impahla eyomile.
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