Pankhani ya vuto lomwe putty ufa ndi wosavuta ufa, kapena mphamvu sikokwanira.Monga tonse tikudziwira, ether ya cellulose iyenera kuwonjezeredwa kuti ipange ufa wa putty, HPMC imagwiritsidwa ntchito popanga khoma, ndipo ogwiritsa ntchito ambiri samawonjezera ufa wowonjezera wa latex.Anthu ambiri samawonjezera ufa wa polima kuti apulumutse ndalama, koma ichi ndiyenso chinsinsi cha chifukwa chake putty wamba ndi wosavuta kukhala ufa komanso wosavuta kuthana ndi zovuta zamtundu wazinthu!
Putty wamba (monga 821 putty) makamaka amapangidwa ndi ufa woyera, guluu wowuma pang'ono ndi CMC (hydroxymethyl cellulose), ndipo ena amapangidwa ndi methyl cellulose ndi Shuangfei powder.Putty iyi ilibe zomatira ndipo siilimbana ndi madzi.
Ma cellulose amatha kuyamwa madzi ndikutupa atasungunuka m'madzi.Zogulitsa zochokera kwa opanga osiyanasiyana zimakhala ndi mitengo yosiyana ya kuyamwa madzi.Cellulose imathandizira kusunga madzi mu putty.Putty yowuma imakhala ndi mphamvu kwakanthawi, ndipo imayamba kuchepa pang'onopang'ono pakapita nthawi yayitali.Izi zimagwirizana kwambiri ndi kapangidwe ka cellulose komweko.Putty yotereyi ndi yotayirira, imayamwa madzi ambiri, imaphwanyidwa mosavuta, ilibe mphamvu, ndipo ilibe mphamvu.Ngati topcoat ikugwiritsidwa ntchito pamwamba, PVC yochepa ndi yosavuta kuphulika ndi thovu;mkulu wa PVC ndi wosavuta kufota ndi kusweka;chifukwa cha mayamwidwe apamwamba amadzi, zidzakhudza mapangidwe a filimu ndi mapangidwe a topcoat.
Ngati mukufuna kukonza mavuto omwe ali pamwambawa a putty, mutha kusintha mawonekedwe a putty, kuwonjezera ufa wonyezimira wa latex moyenerera kuti muwonjezere mphamvu yamtsogolo ya putty, ndikusankha hydroxypropyl methylcellulose HPMC yapamwamba yokhala ndi zotsimikizika.
Popanga putty, ngati kuchuluka kwa ufa wa latex wowonjezeredwa sikukwanira, kapena ngati ufa wochepa wa latex wa putty ugwiritsidwa ntchito, zingakhudze bwanji pa putty powder?
Kusakwanira kwa putty redispersible latex powder, kuwonekera kwachindunji ndikuti putty wosanjikiza ndi lotayirira, pamwamba ndi pulverized, kuchuluka kwa utoto wogwiritsidwa ntchito pakupaka pamwamba ndi kwakukulu, malo owongolera ndi osauka, pamwamba pake ndi ovuta pambuyo pakupanga filimu, ndi n'zovuta kupanga wandiweyani utoto filimu.Makoma oterowo amakonda kusenda, matuza, kusenda, ndi kusweka kwa filimu ya utoto.Ngati mumasankha ufa wochepa wa putty, n'zoonekeratu kuti mpweya woipa monga formaldehyde wopangidwa pakhoma udzavulaza ena.
Nthawi yotumiza: Jun-15-2023