PPO
Ayyukan PPO
Polyphenylether shine poly2, 6-dimethyl-1, 4-phenylether, wanda kuma aka sani da polyphenyloxy, Polyphenyleneoxiole (PPO), polyphenylether da aka gyara an canza shi ta hanyar polystyrene ko wasu polymers (MPPO).
PPO wani nau'i ne na filastik injiniya tare da kyakkyawan aiki mai mahimmanci, taurin mafi girma fiye da PA, POM, PC, ƙarfin injiniya mai girma, mai kyau rigidity, mai kyau zafi juriya (zazzabi nakasar thermal na 126 ℃), high girma kwanciyar hankali (shrinkage kudi na 0.6%) , ƙarancin sha ruwa (kasa da 0.1%).Rashin hasara shi ne cewa UV ba shi da kwanciyar hankali, farashin yana da girma kuma adadin yana da ƙananan.PPO ba mai guba bane, m, in mun gwada da ƙananan yawa, tare da kyakkyawan ƙarfin injin, juriya na shakatawa, juriya mai raɗaɗi, juriya mai zafi, juriya na ruwa, juriyawar tururin ruwa.
A cikin yanayin zafi da yawa, mitar bambancin kewayon aikin lantarki mai kyau, babu hydrolysis, haɓaka ƙimar raguwa kaɗan ne, flammable tare da walƙiya mai ƙarfi, juriya ga inorganic acid, alkali, juriya na hydrocarbon aromatic, halogenated hydrocarbon, mai da sauran ƙarancin aiki, sauki kumburi ko danniya fatattaka, babban drawback ne matalauta narkewa liquidity, aiki da kuma kafa matsaloli, mafi m aikace-aikace na MPPO (PPO saje ko gami).
Halayen tsari na PPO
PPO yana da babban narke danko, ƙarancin ruwa da yanayin aiki mai girma.Kafin aiki, shi wajibi ne don bushe for 1-2 hours a zazzabi na 100-120 ℃, forming zafin jiki ne 270-320 ℃, mold zafin jiki iko ne dace a 75-95 ℃, da kuma kafa aiki a karkashin yanayin "high". zafin jiki, matsanancin matsin lamba da kuma saurin gudu”.A cikin tsarin samar da wannan giya na filastik, tsarin jigilar jet (tsarin maciji) yana da sauƙi don samar da shi a gaban bututun ƙarfe, kuma tashar kwararar bututun ya fi kyau.
Matsakaicin kauri daga 0.060 zuwa 0.125 inci don daidaitattun sassan sassa da 0.125 zuwa 0.250 inci don sassan kumfa na tsari.Ƙunƙarar wuta ta tashi daga UL94 HB zuwa VO.
Kewayon aikace-aikace na yau da kullun
PPO da MPPO galibi ana amfani da su a cikin kayan lantarki, motoci, kayan aikin gida, kayan ofis da kayan aikin masana'antu, da sauransu, ta amfani da juriya mai zafi na MPPO, juriya mai tasiri, kwanciyar hankali mai girma, juriya abrasion, juriya flaking;
PC
Ayyukan PC
PC wani nau'in nau'in nau'in nau'i ne, maras wari, mara guba, marar launi mai launi ko dan kadan rawaya thermoplastic injiniya robobi, tare da kyawawan kaddarorin jiki da na inji, musamman madaidaicin tasiri na juriya, ƙarfin ƙarfi mai ƙarfi, ƙarfin lanƙwasa, ƙarfin matsawa;Kyakkyawan tauri, zafi mai kyau da juriya na yanayi, sauƙin canza launi, ƙarancin sha ruwa.
The thermal nakasawa zafin jiki na PC ne 135-143 ℃, da creep ne karami da girman ne barga.Yana da zafi mai kyau da ƙarancin zafin jiki, ƙayyadaddun kayan aikin injin, kwanciyar hankali mai girma, kaddarorin wutar lantarki da mai riƙe wuta a cikin kewayon zafin jiki mai faɗi.Ana iya amfani dashi na dogon lokaci a -60 ~ 120 ℃.
Barga zuwa haske, amma ba juriya ga hasken UV, kyakkyawan juriya na yanayi;Oil juriya, acid juriya, alkali juriya, hadawan abu da iskar shaka acid da amine, ketone, mai narkewa a cikin chlorinated hydrocarbons da aromatic kaushi, hana kwayan cuta halaye, harshen retardant halaye da kuma gurbatawa juriya, dogon lokaci a cikin ruwa sauki sa hydrolysis da fatattaka, da hasara ne. saboda rashin ƙarfin gajiya, mai sauƙin samar da damuwa, rashin ƙarfi mai ƙarfi, rashin ruwa mara kyau, rashin juriya mara kyau.PC allura gyare-gyaren, extrusion, gyare-gyare, busa gyare-gyare, bugu, bonding, shafi da machining, mafi muhimmanci aiki Hanyar ne allura gyare-gyare.
Halayen tsari na PC
PC abu ne mafi kula da zafin jiki, ta narkewa danko tare da karuwa da zafin jiki da kuma muhimmanci rage, sauri kwarara, ba kula da matsa lamba, domin inganta ta liquidity, ya dauki hanyar dumama.PC abu kafin aiki zuwa cikakken bushe (120 ℃, 3 ~ 4 hours), danshi ya kamata a sarrafa a cikin 0.02%, gano ruwa aiki a high zafin jiki zai sa kayayyakin samar da turbidious launi, azurfa da kumfa, PC a dakin zafin jiki yana da babba iya aiki. don tilasta babban nakasawa na roba.Babban tasiri tauri, don haka zai iya zama sanyi latsa, sanyi zane, sanyi yi latsawa da sauran sanyi kafa tsari.PC kayan ya kamata a gyare-gyare a karkashin yanayi na high abu zazzabi, high m zafin jiki da kuma high matsa lamba da kuma low gudun.Don ƙarami sprue, ya kamata a yi amfani da allurar ƙananan gudu.Don wasu nau'ikan sprue, yakamata a yi amfani da allurar mai sauri.
Mold zafin jiki iko a 80-110 ℃ ne mafi alhẽri, forming zafin jiki a 280-320 ℃ ya dace.
Kewayon aikace-aikace na yau da kullun
Yankunan aikace-aikacen PC guda uku sune masana'antar hada gilashi, masana'antar motoci da lantarki, masana'antar lantarki, biye da sassan injin masana'antu, fayafai na gani, suturar farar hula, kwamfuta da sauran kayan ofis, kiwon lafiya da kiwon lafiya, fim, nishaɗi da kayan kariya.
PBT
Ayyukan PBT
PBT yana daya daga cikin kayan aikin thermoplastic mafi wuyar injiniya, kayan abu ne na Semi-crystalline, yana da kwanciyar hankali na sinadarai mai kyau, ƙarfin injiniya, halayen rufin lantarki da kwanciyar hankali na thermal.Wadannan kayan suna da kwanciyar hankali mai kyau a cikin yanayi mai yawa na yanayi, kuma halayen shayar da danshi na PBT suna da rauni sosai.
Matsayin narkewa (225% ℃) da zazzabi nakasar zafin jiki sun kasance ƙasa da kayan PET.Zazzabi mai laushi na Veka yana kusan 170 ℃.Gilashin canjin zafin jiki yana tsakanin 22 ℃ da 43 ℃.
Saboda yawan crystallization na PBT, danko yana da ƙasa sosai, kuma lokacin sake zagayowar kayan aikin filastik gabaɗaya ƙasa ce.
Halayen tsari na PBT
Drying: Wannan abu yana yin ruwa cikin sauƙi a yanayin zafi mai yawa, don haka yana da muhimmanci a bushe shi kafin sarrafa shi.Shawarar bushewar yanayin da aka ba da shawarar a cikin iska shine 120C, 6-8 hours, ko 150 ℃, 2-4 hours.Dole ne zafi ya zama ƙasa da 0.03%.Idan amfani da na'urar bushewa hygroscopic, shawarar bushewa yanayin shine 150 ° C na awanni 2.5.The aiki zafin jiki ne 225 ~ 275 ℃, da shawarar zafin jiki ne 250 ℃.Ga unenhanced abu mold zafin jiki ne 40 ~ 60 ℃.
Ya kamata a tsara rami mai sanyaya na ƙirar da kyau don rage karkatar da sassan filastik.Dole ne a rasa zafi da sauri kuma a ko'ina.Ana ba da shawarar cewa diamita na rami mai sanyaya mold shine 12mm.Matsakaicin matsakaici (har zuwa 1500bar), kuma adadin allurar yakamata ya kasance cikin sauri kamar yadda zai yiwu (saboda PBT yana ƙarfafawa da sauri).
Mai gudu da kofa: Ana ba da shawarar mai gudu madauwari don ƙara matsa lamba.
Kewayon aikace-aikace na yau da kullun
Na'urorin gida (masu sarrafa abinci, abubuwan tsabtace injin, masu sha'awar lantarki, mahalli na busar gashi, kayan kofi, da sauransu), kayan lantarki (masu sauya, gidaje na lantarki, akwatunan fis, maɓallan kwamfuta, da sauransu), masana'antar kera motoci (radiator grates, da dai sauransu), bangarori na jiki, murfin dabaran, abubuwan kofa da taga, da sauransu.
Lokacin aikawa: 18-11-22