Kusiyana Pakati pa Chikopa Chotsitsimutsanso cha PU (Chikopa cha Vegan) ndi Chikopa cha PU Chobwezeretsanso

“Zongowonjezedwanso” ndi “zobwezerezedwanso” ndi mfundo ziwiri zofunika koma nthawi zambiri zosokoneza pachitetezo cha chilengedwe. Zikafika pachikopa cha PU, njira zachilengedwe komanso mayendedwe amoyo ndizosiyana kwambiri.

Mwachidule, Zongowonjezeranso zimayang'ana kwambiri pa "kugula zinthu zopangira" - komwe zimachokera komanso ngati zitha kuwonjezeredwa nthawi zonse. Zobwezerezedwanso zimayang'ana pa "mapeto a moyo wazinthu" - kaya zitha kubwezeretsedwanso kuzinthu zopangira zitatayidwa. Tsopano tilowa mwatsatanetsatane za kusiyana kwenikweni pakati pa malingaliro awiriwa momwe amagwirira ntchito pa chikopa cha PU.

1. Zongowonjezwdwa PU chikopa (bio-based PU chikopa).

• Ndi chiyani?

'Bio-based PU chikopa' ndi mawu olondola kwambiri a chikopa cha PU chongowonjezwdwa. Izi sizikutanthauza kuti mankhwala onse amapangidwa kuchokera ku zinthu zachilengedwe. M'malo mwake, zikutanthauza kuti zina mwazinthu zomwe zimagwiritsidwa ntchito popanga polyurethane zimachokera ku biomass yongowonjezedwanso osati mafuta osasinthika.

• Kodi 'zongowonjezedwanso' zimatheka bwanji?

Mwachitsanzo, shuga wochokera ku zomera monga chimanga kapena nzimbe amafufuzidwa pogwiritsa ntchito luso lamakono kupanga bio-based chemical intermediates, monga propylene glycol. Izi zapakati zimapangidwira mu polyurethane. Chotsatira cha PU chikopa chimakhala ndi gawo lina la 'bio-based carbon'. Peresenti yeniyeni imasiyanasiyana: zogulitsa pamsika zimachokera ku 20% mpaka 60% zozikidwa pa bio, kutengera certification.

2. Recyclable PU Chikopa

• Ndi chiyani?

Chikopa cha PU chobwezerezedwanso chimatanthawuza zinthu za PU zomwe zimatha kubwezeredwa kudzera munjira zakuthupi kapena zamankhwala zitatayidwa ndikugwiritsiridwanso ntchito kupanga zatsopano.

• Kodi “kubwezeretsanso” kumatheka bwanji?

Kubwezeretsanso Kwakuthupi: Zinyalala za PU zimaphwanyidwa ndikuphwanyidwa kukhala ufa, kenako nkusakanikirana ngati zodzaza mu PU yatsopano kapena zida zina. Komabe, izi nthawi zambiri zimawononga zinthu zakuthupi ndipo zimatengedwa ngati zobwezerezedwanso.

Kubwezeretsanso Chemical: Kupyolera mu ukadaulo wa depolymerization wamankhwala, mamolekyu amtali a PU amathyoledwa kukhala mankhwala oyambira kapena atsopano ngati ma polyols. Zinthuzi zitha kugwiritsidwa ntchito ngati zida za namwali kupanga zinthu zapamwamba za PU. Izi zikuyimira njira yapamwamba kwambiri yobwezeretsanso zinthu zotsekedwa.

Ubale Pakati pa Awiriwa: Osakhala Pamodzi, Ukhoza Kuphatikizidwa

Zinthu zabwino kwambiri zokomera chilengedwe zimakhala ndi "zongowonjezedwanso" komanso "zobwezerezedwanso". Ndipotu teknoloji ikupita patsogolo mbali iyi.

Nkhani 1: Zachikhalidwe (Zosawonjezedwanso) Koma Zogwiritsidwanso Ntchito

Amapangidwa pogwiritsa ntchito mafuta opangira mafuta koma opangidwa kuti azibwezeretsanso mankhwala. Izi zikufotokozera momwe zikopa zambiri za "PU" zilili pano.

Nkhani 2: Zongowonjezedwanso koma Zosagwiritsidwanso Ntchito

Amapangidwa pogwiritsa ntchito zida zopangira bio, koma kapangidwe kazinthu kamapangitsa kuti kubwezeretsedwanso kukhale kovuta. Mwachitsanzo, imamangirizidwa mwamphamvu kuzinthu zina, zomwe zimapangitsa kulekanitsa kukhala kovuta.

Nkhani 3: Zongowonjezedwanso ndi Zobwezerezedwanso (Boma Loyenera)

Amapangidwa pogwiritsa ntchito zida zopangira bio ndipo adapangidwira kuti azibwezeretsanso mosavuta. Mwachitsanzo, single-material thermoplastic PU yopangidwa kuchokera ku bio-based feedstocks imachepetsa kugwiritsidwa ntchito kwa zinthu zakale ndikulowa m'malo obwezeretsanso pambuyo potaya. Izi zikuyimira "Cradle to Cradle" paradigm.

Chidule ndi Zosankha Zosankha:

Mukapanga chisankho chanu, mutha kusankha motengera zomwe mumakonda kwambiri zachilengedwe:

Ngati mukuda nkhawa kwambiri ndi kuchepetsa kugwiritsa ntchito mafuta ochulukirapo komanso mpweya wowonjezera kutentha, muyenera kuyang'ana kwambiri "chikopa cha PU chongowonjezeranso / chopangidwa ndi bio" ndikuwunikanso chitsimikiziro chake.

Ngati mukukhudzidwa kwambiri ndi momwe chilengedwe chimakhudzidwira kumapeto kwa moyo wa chinthucho ndikupewa kutaya zinyalala, muyenera kusankha "chikopa cha PU chobwezerezedwanso" ndikumvetsetsa njira zake zobwezeretsanso ndi zotheka.

Chisankho chabwino kwambiri ndikufunafuna zinthu zomwe zimaphatikiza zonse zomwe zili ndi bio-high ndi njira zobwezeretsanso, ngakhale zosankha zotere zikusoweka pamsika wapano.

Tikukhulupirira, kufotokozeraku kukuthandizani kusiyanitsa momveka bwino pakati pa mfundo ziwiri zofunikazi.