Door curtain rinoshandiswa nemhuri yega yega, kunyanya muzhizha rinopisa, mosquito dzakawanda, chiedza chine simba kwazvo, saka mumusuwo wezhizha kutengesa kweketeni kwakananga kumusoro, chigadzirwa chemhando chivimbiso chakakosha. Kune marudzi akawanda emaketeni emusuwo masitayera. Muzhizha, tinowanzoona PVC nyoro mukova keteni.
nokusingaperi, läpinäkyvä reteni keteni ane dambudziko zvakajairika, ndiko kuti, zviri nyore kuti yellowing, kuchembera nokukurumidza, uye zvakakomba kunokanganisa chitarisiko zvigadzirwa, kuoneka ichi mhando chiitiko anogona kurega mushandisi musoro, zvakawanda regai munyoro mukova keteni mugadziri asingabatsiri. Vazhinji vagadziri vanga vachitsvaga mubatsiri wekuchinja dambudziko iri, vakaedzawo zvakawanda, vamwe mushure mekushandisa kunyangwe vakagadziridzwa, asi mhedzisiro yacho haina kunaka.
Chikonzero cheizvi ndechekuti keteni rePVC nderoyero,Kunyanya nekuti keteni remusuwo rinonyanya kunze, zuva rinogona kuvhenekerwa zvakananga, kazhinji mwedzi mitatu kana zvakadaro ichaonekwa yero chiitiko, yero refu yakakomba. Ichi chiitiko chinonyanya kukonzerwa nemwaranzi ye ultraviolet muzuva, iyo yakaparadza mamolecular chimiro chePVC keteni, kuitira kuti polar chlorine iri muPVC chimiro muchiedza chenguva refu uye oxidation inomhanyisa kuparara kweyero yakafanana nePS uye PU. Izvi zvinogona kudzikiswa nekuwedzera hushoma hwema antioxidants uye light stabilizers panguva yekusanganisa chikamu. Zvakajairwa mawedzero eAntioxidants 1010 uye UV-531 ndiwo anonyanya kuzivikanwa ekurwisa kuchembera musanganiswa wePVC zvigadzirwa. Ndapota tarisa kune.
Nekudaro, akajeka PVC maketeni zvigadzirwa zvinowanzo pikisa ultraviolet nemwaranzi pane zvinodikanwa zveantioxidant, zvinokurudzirwa kuti akasiyana siyana emwenje stabilizer anoshandiswa mukubatana ari nani. Mazhinji emagetsi eUV pamusika ari monomer, uye haakwanise kutamba yakakosha anti-yellowing maitiro. Inoda kusarudza kutora yakawanda-peak UV inonyudza, inogona kunyatsojeka kuti iwane-yakareba isiri-yero maitiro. Parizvino, musika unowanzo shandisa yakanaka match mhando yeUV absorber X-2, ingozadzisa zvinodiwa nevatengi. Sarudzo yeakadaro anti-okisijeni, anti-ultraviolet, kugadzikana kwechiedza-yemhando yeUV inonwisa, inogona kunyatso kuperekedza zvigadzirwa zvepurasitiki.
Nguva yekutumira: Mar-15-2022