imikhiqizo

Ngaphansi kwezingcindezi ezimbili "zokufakelwa kukagesi" kanye "nokufaka ugesi kalula" namuhla'Imboni yezimoto, igremu ngalinye eligciniwe lihumusha libe ububanzi obude kanye nokusetshenziswa kwamandla okuncishisiwe. Nakuba kugxilwa kakhulu ezingxenyeni ezinkulu njengezakhiwo zomzimba namabhethri, ingxenye ebonakala ingenaso isithunzi kodwa ibalulekile idlula ekuguqukeni kwezinto ezibonakalayo.—uhlaka lwesihlalo sezimoto.

Amafreyimu ezihlalo zendabuko ngokuvamile enziwa ngensimbi egxiviziwe futhi ehlanganisiwe. Nakuba ehlangabezana nezidingo zamandla, ayasinda futhi anikeza inkululeko yokuklama elinganiselwe. Ngokuthuthuka okusheshayo kwepulasitiki yobunjiniyela, i-polypropylene ende yengilazi eqinisiwe ngefayibha (LGF/PP) isheshe ithathe indawo yensimbi njengento efanelekile yamafreyimu ezihlalo esizukulwaneni esilandelayo.

 Iyini i-Long Glass Fiber PP?

Ngokungafani nezinto ezivamile eziqiniswe ngefayibha yengilazi emfushane (lapho ubude befayibha buvame ukuba ngaphansi kuka-1 mm), i-polypropylene ende eqiniswe ngefayibha yengilazi ibhekisela ku-composite ehlanganisiwe equkethe imicu yengilazi enobude obuyi-10–25 mm. Lesi sakhiwo esiyingqayizivele sinikeza igxathu elibalulekile ekusebenzeni kwezinto ezibonakalayo:

Inethiwekhi yefayibha enezinhlangothi ezintathu: Ngesikhathi sokubumba ngomjovo, imicu yengilazi ende iyahlangana ngaphakathi kwe-polymer matrix, yakha uhlaka lwesakhiwo olunezinhlangothi ezintathu. Ngisho noma izinto eziyisisekelo zithambile emazingeni okushisa aphezulu, inethiwekhi yefayibha iyasiza ekugcineni isimo—into eyaziwa ngokuthi “umphumela we-fiber skeleton.”

Ubude befayibha eseleyo ephezulu: Ubude befayibha eseleyo engxenyeni eqediwe bukhulu kakhulu kunobezinto ezivamile. Lena yimfihlo eyinhloko yokuqina kwayo okuphezulu.

Kungani Kulungele Amafreyimu Ezihlalo?

Kubakhiqizi bezimoto, izihlalo azigcini nje ngokuba nenduduzo—ziyizingxenye zokuphepha. Uma kwenzeka ukushayisana, uhlaka lwesihlalo kumele lubhekane namandla amakhulu okushayisana ngenkathi lugcina ubuqotho besakhiwo. I-LGF/PP ixazulula ngokuphelele ingxabano phakathi kokuqina nokuqina kwepulasitiki yobunjiniyela:

Amandla aphezulu kanye nokumelana nokushayisana: I-LGF/PP inikeza amandla amahle kakhulu okujiya kanye ne-flexural modulus, kanye nokumelana nokushayisana3–Iphakeme ngokuphindwe kahlanu kunezinto ezivamile eziqiniswe ngefayibha yengilazi emfushane. Uma kwenzeka ingozi, imunca amandla amakhulu ngokuguquguquka ngaphandle kokuphuka okubuthakathaka, ngaleyo ndlela ivikele abantu abaphakathi.

Ukumelana okuhle kakhulu nokukhukhuleka: Izihlalo ziyizingxenye ezithwala umthwalo ezibhekene nokucindezeleka kwesikhathi eside. Nakuba amapulasitiki avamile evame ukonakala ngaphansi komthwalo oqhubekayo, i-LGF/PP igcina ukuzinza kobukhulu ngisho noma ku-100°C isikhathi eside, ukumelana nokuguquguquka okungapheli.

Ukunciphisa isisindo okuphawulekayo: Uma kuqhathaniswa nezakhiwo zensimbi zendabuko, ozimele bezihlalo ze-LGF/PP bathola u-20–Ukwehlisa isisindo ngo-30%, okusiza ngqo ekunciphiseni ukusetshenziswa kukaphethiloli noma ukwandisa ububanzi be-EV.

Inkululeko yokuklama: I-LGF/PP ivumela ukuhlanganiswa kwezingxenye eziningi zensimbi zibe yingxenye eyodwa, eyinkimbinkimbi ebunjiwe ngomjovo, okwenza kube lula ukuhlanganisa nokunciphisa izindleko zamathuluzi (cishe ama-20% alawo okufaka izinti zensimbi).

 Izinhlelo Zokusebenza Zangempela

Lokhu okubalulekile akuyona into eyenziwa elebhu—isivele iqinisekisiwe ezimotweni ezikhiqizwe ngobuningi.

1: Igobolondo layo lesihlalo lisebenzisa i-thermoplastic composite eqhubekayo eqiniswe ngefayibha yengilazi, ifinyelela ukuqina okuphezulu kakhulu ngenkathi igcina cishe amagremu angu-800 uma kuqhathaniswa nesakhiwo sensimbi.

2: Imodyuli yayo yomnyango wangaphambili kanye nezingxenye zesihlalo zisebenzisa i-LGF/PP ukuze kufezwe ukuhlanganiswa okuphezulu kokusebenza, ngokusebenza okuphansi kokushelela okubonakalayo emazingeni okushisa aphezulu.

 Umbono Wezobuchwepheshe

Njengoba umkhuba "wokufaka insimbi esikhundleni sepulasitiki" ujula, i-LGF/PP ayisagcini ezimotweni zenjini yokushisa yangaphakathi. Engxenyeni entsha yezimoto zamandla, ikhilogremu ngayinye yokunciphisa isisindo iyabalwa. Ngezinqubo zokubumba ezilungiselelwe kahle (isb., ukulawula amazinga okushisa ancibilikayo phakathi kuka-190).°C kanye no-250°C), amandla omthelela wezinto angandiswa ngo-50%.

Ngaphezu kwalokho, intuthuko kwezobuchwepheshe obungenaphunga eliningi kanye nobuchwepheshe obungena-VOC ephansi yenza i-LGF/PP ibe nobungane kakhulu nemvelo, ihlangabezana nezindinganiso eziqinile zekhwalithi yomoya wekhabhini.

 Isiphetho

Amafreyimu ezihlalo zezimoto ayashintsha kusukela emathangeni ensimbi kuya kuma-polymer abunjiwe. Ngenhlanganisela yayo evelele yamandla aphezulu, ukuqina okuphezulu, kanye nesisindo esincane, i-polypropylene ende eqiniswe ngefayibha yengilazi iba yinto ekhethwayo yokuklama izihlalo zesizukulwane esilandelayo. Ayigcini nje ngokuletha izindleko zokusebenza eziphansi kubathengi kodwa futhi inikeza onjiniyela amathuba amasha okucabanga kabusha ngezikhala zangaphakathi zezimoto. Emjahweni wokwenza kube lula, i-LGF/PP ngokusobala iphakathi kwabaphambili.