Ubumenyi bwinganda | Ubwoko butandatu bwo gucapa firime ya polypropilene, gukora imifuka yigitabo cyose

"Polypropilene ikozwe muri polymerisiyasi ya gaze nyuma yubushyuhe bukabije bwa peteroli ikozwe na catalizator, ukurikije uburyo butandukanye bwo gutunganya amafilime ushobora kuboneka muri firime zitandukanye, zikoreshwa cyane cyane muri rusange BOPP, matte BOPP, firime ya pearl, ubushyuhe bwafunzwe na BOPP, guta CPP, guhindagura IPP, nibindi .. Iyi ngingo isesengura imikorere yo gucapa no gukora imifuka yubwoko bwa firime muburyo burambuye.
1 purpose Intego rusange ya firime BOPP

Filime ya BOPP itunganijwe kuburyo igice cya amorphous cyangwa igice cya firime ya kristaline irambuye mu cyerekezo kirekire kandi cyambukiranya hejuru yicyerekezo cyoroheje, kuburyo ubuso bwa firime bwiyongera, umubyimba ukagabanuka, kandi ububengerane nubucyo bikanozwa cyane. Muri icyo gihe, imbaraga za mashini, ubukana bwumwuka, inzitizi yubushuhe hamwe nubukonje bukonje cyane kubera icyerekezo cya molekile irambuye.

Ibyiza bya firime ya BOPP:

Imbaraga zingana cyane, modulus yo hejuru ya elastique, ariko imbaraga nke zamarira; gukomera gukomeye, kurambura bidasanzwe no kurwanya kunaniza imikorere; ubushyuhe nubukonje birakabije, gukoresha ubushyuhe bugera kuri 120 ℃, BOPP irwanya ubukonje nayo irarenze firime rusange ya PP; hejuru yuburebure buringaniye, gukorera mu mucyo, bikwiranye nibikoresho bitandukanye byo gupakira; Imiti ya BOPP itajegajega ni nziza, usibye acide ikomeye, nko gusohora aside sulfurike, aside nitricike igira ingaruka mbi kuri yo Byongeye kandi, ntishobora gushonga mu zindi mashanyarazi, kandi hydrocarbone zimwe na zimwe zifite ingaruka zo kubyimba; kurwanya amazi meza, kimwe mubikoresho byiza byo kurwanya ubushuhe nubushuhe, igipimo cyo kwinjiza amazi <0.01%; gucapa nabi, bityo ubuso bugomba kuba corona ivurwa mbere yo gucapa, ingaruka nziza yo gucapa nyuma yo kuyitunganya; amashanyarazi menshi ahamye, ibisigarira bikoreshwa mugukora firime bigomba kongerwaho imiti igabanya ubukana.

2 、 Matte BOPP

Ubuso bwubuso bwa matte BOPP bwashizweho nkigice cya matte, bigatuma isura yimiterere isa nimpapuro kandi yoroshye gukoraho. Ubuso bwa matte mubusanzwe ntabwo bukoreshwa mugushiraho ubushyuhe, bitewe nuko habaho igipande cya matte, ugereranije nintego rusange ya BOPP, ifite ibintu bikurikira: igipande cyubutaka gishobora kugira uruhare mugicucu, ububengerane bwubuso nabwo buragabanuka cyane; matte irashobora gukoreshwa mugushiraho ubushyuhe mugihe bibaye ngombwa; Ubuso bwa matte buringaniye kandi bwiza, kubera ko ubuso bwakomerekejwe na anti-adhesive, umuzingo wa firime ntabwo byoroshye gukomera; matte firime tensile imbaraga ziri munsi gato ugereranije na firime rusange-intego, ituze ryumuriro naryo ryitwa BOPP risanzwe nabi.

3 firime ya Pearlescent

Filime ya pearlescent ikozwe muri PP, CaCO3, pearlescent pigment na rubber hood modifier yongeweho kandi ivangwa no kurambura byerekezo. Nkuko PP resin molekules irambuye mugihe cyo kurambura biaxial, kandi uduce twa CaCO3 turambuye dutandukana, bityo tugakora ibibyimba byinshi, bityo firime ya pearlescent ni firime ya microporome ifuro ifite ubucucike bwa 0.7g / cm³.

Molekile ya PP itakaza ubushyuhe bwayo nyuma yicyerekezo cya biaxial, ariko iracyafite ubushyuhe bumwe na reberi nibindi bihindura, ariko imbaraga zidashyirwaho ubushyuhe ni nke cyane kandi byoroshye kurira, bikunze gukoreshwa mugupakira ice cream, popsicle, nibindi.

4 、 Shyushya kashe ya BOPP

Filime ebyiri zifunze ubushyuhe:

Iyi firime ni imiterere ya ABC, A na C impande zubushyuhe bwa kashe. Ahanini ikoreshwa nkibikoresho byo gupakira ibiryo, imyenda, amajwi na videwo, nibindi.

Filime imwe yubushyuhe bwa kashe ya firime:

Ubu bwoko bwa firime nuburyo bwa ABB, hamwe na A layer nkubushyuhe bwo gufunga ubushyuhe. Nyuma yo gucapa amashusho kuruhande rwa B, yometse kuri PE, BOPP na aluminiyumu yo gukora imifuka, ikoreshwa nkibikoresho byo mu rwego rwo hejuru byo gupakira ibiryo, ibinyobwa, icyayi, nibindi.

5 、 Filime ya CPP yatinze

Filime ya CPP polypropilene ni firime itarambuye, idafite icyerekezo cya polypropilene.

Filime ya CPP irangwa no gukorera mu mucyo mwinshi, kureshya neza, guhangana nubushyuhe bwo hejuru, urwego runaka rwo guhinduka utabuze guhinduka, ibyiza byo gufunga ubushyuhe. Homopolymer CPP ifite intera ntoya yubushyuhe bwo gufunga ubushyuhe hamwe nubukonje bwinshi, bigatuma ikoreshwa nka firime imwe yo gupakira.

Co-polymer CPP ifite imikorere iringaniye kandi irakwiriye nkigice cyimbere cya firime ikomatanya. Kugeza ubu, rusange muri rusange bafatanije na CPP, barashobora gukoresha byimazeyo ibintu bitandukanye biranga polypropilene biranga guhuza, bigatuma imikorere ya CPP irushaho kuba nziza.

6 firime ya IPP

Filime ya IPP isanzwe ikorwa muburyo bwo kumanura hasi, PP irasohorwa kandi ikavuzwa mu mpeta ipfa umunwa, ako kanya nyuma yo gukonjeshwa bwa mbere nimpeta yumuyaga, ikozwe no gukonjesha amazi byihutirwa, byumye kandi bizunguruka, ibicuruzwa byarangiye ni firime ya silinderi, zishobora no gucibwa kugirango zibe firime. Blown IPP ifite umucyo mwiza, gukomera no gukora imifuka yoroshye, ariko ubunini bwayo burakennye kandi uburinganire bwa firime ntabwo ari bwiza bihagije.