Mfundo zazikulu zoyendetsera ntchito ya wowongolera thovu wa PVC

Chowongolera thovu cha PVC chingatithandize kukhala ndi makhalidwe abwino popanga ndi kukonza PVC, zomwe zimathandiza kuti zochita zathu zipitirire bwino ndikupanga zinthu zomwe tikufuna. Komabe, tiyeneranso kusamala ndi mfundo zingapo zofunika kwambiri zowongolera mafakitale popanga, kuti zochita zathu zipitirire bwino.

Kuumba thovu la pulasitiki la PVC foaming regulator kumagawidwa m'njira zitatu: kupanga thovu la pakati, kukulitsa thovu la pakati, ndi kulimbitsa thupi la thovu. Pa mapepala a thovu la PVC okhala ndi mankhwala owonjezera a thovu, kukulitsa kwa ma nuclei a thovu kumakhudza kwambiri ubwino wa pepala la thovu. PVC ndi ya mamolekyulu olunjika okhala ndi unyolo waufupi wa mamolekyu ndi mphamvu yochepa yosungunuka. Panthawi yokulitsa thovu la pakati kukhala thovu, kusungunuka sikukwanira kuphimba thovu, ndipo mpweya umatha kusefukira ndikuphatikizana kukhala thovu lalikulu, zomwe zimachepetsa ubwino wa mapepala a thovu.

Chofunika kwambiri pakukweza ubwino wa zosinthira thovu za PVC ndikuwonjezera mphamvu yosungunuka ya PVC. Kuchokera ku kusanthula kwa makhalidwe opangira zinthu za polima, pali njira zosiyanasiyana zowonjezerera mphamvu yosungunuka ya PVC, koma njira yabwino kwambiri ndikuwonjezera zowonjezera zomwe zimawonjezera mphamvu yosungunuka ndikuchepetsa kutentha kwa kukonza. PVC ndi ya zinthu zopanda mawonekedwe, ndipo mphamvu yake yosungunuka imachepa ndi kutentha kosungunuka komwe kukuwonjezeka. Mosiyana ndi zimenezi, mphamvu yake yosungunuka imawonjezeka ndi kutentha kosungunuka komwe kukuchepa, koma mphamvu yozizira imakhala yochepa ndipo imagwira ntchito yothandizira yokha. Zothandizira zonse za ACR zimakhala ndi mphamvu yokweza mphamvu yosungunuka, zomwe zimawonjezeka ndi kuchuluka kwa zinthu zowongolera thovu. Nthawi zambiri, bola ngati screw ili ndi mphamvu yokwanira yobalalitsa ndi kusakaniza, kuwonjezera zosinthira thovu zapamwamba kwambiri kumakhudza kwambiri pakukweza mphamvu ya kusungunuka.

Zomwe zili pamwambapa ndi chiyambi chachidule cha mfundo zazikulu zoyendetsera njira ya thovu la PVC thovu. Popanga izi, tiyenera kusamala ndi kapangidwe, kukulitsa, ndi kuchiritsa kwa ma bubble nuclei awo ndikuziwongolera mosamala.