Maleic Anhydride: Chinthu Chofunika Kwambiri Chopangira Mankhwala Opangira Zachilengedwe Chomwe Chimayendetsa Kukula kwa Magawo Ambiri
Minda Yaikulu Yogwiritsira Ntchito
Mu makampani opanga mankhwala, maleic anhydride ndi chinthu chofunikira kwambiri popanga ma unsaturated polyester resins (UPR). Ma resin awa ali ndi mphamvu zabwino kwambiri zamakaniko, kukana mankhwala, komanso kukana nyengo ndipo amagwiritsidwa ntchito kwambiri popanga mapulasitiki opangidwa ndi ulusi wagalasi (GFRP), monga mabwato, zida zamagalimoto, ndi masamba a wind turbine. Kuphatikiza apo, maleic anhydride angagwiritsidwe ntchito popanga ma alkyd resins, omwe ali ndi kuwala bwino komanso kulimba ndipo amagwiritsidwa ntchito kwambiri m'mafakitale opangira zokutira ndi inki.
Mu makampani opanga mapulasitiki, maleic anhydride amagwiritsidwa ntchito popanga mapulasitiki osinthidwa ndi maleic anhydride. Mwa kupolima ndi ma monomers osiyanasiyana, maleic anhydride amatha kusintha mawonekedwe a mapulasitiki, monga kuwonjezera kukana kutentha ndi mphamvu ya makina. Mwachitsanzo, maleic anhydride yolumikizidwa ndi polystyrene, yopolima ndi styrene, ili ndi kukana kutentha komanso mphamvu ya makina ndipo imagwiritsidwa ntchito kwambiri m'mafakitale amagetsi ndi magalimoto.
Mu makampani opanga rabala, maleic anhydride imagwiritsidwa ntchito popanga zowonjezera za rabala. Imatha kugwirana ndi rabala kupanga mapangidwe olumikizana, kuonjezera kukana kutentha ndi kukana kutha kwa rabala. Maleic anhydride imagwiritsidwanso ntchito popanga zinthu zowononga rabala komanso zoletsa kukalamba, zomwe zimawonjezera moyo wa ntchito ya zinthu za rabala.
Mu mafakitale opanga fungo ndi mankhwala, maleic anhydride imagwiritsidwa ntchito ngati gawo lapakati pa kapangidwe ka organic. Ingagwiritsidwe ntchito popanga mitundu yosiyanasiyana ya fungo, monga diethyl maleate, yomwe imagwiritsidwa ntchito kwambiri mu zonunkhira ndi zodzoladzola. Kuphatikiza apo, maleic anhydride ingagwiritsidwe ntchito popanga zinthu zina zapakati pa mankhwala, monga zochokera ku maleic anhydride, popanga maantibayotiki ndi mankhwala a mtima.
Pochiza madzi, maleic anhydride amagwiritsidwa ntchito popanga zinthu zochizira madzi. Amatha kuchitapo kanthu ndi ma calcium ndi ma magnesium ions m'madzi kuti apange ma precipitates osasungunuka, motero amachepetsa kuuma kwa madzi. Maleic anhydride ingagwiritsidwenso ntchito popanga zinthu zoletsa dzimbiri ndi zoletsa ma scale kuti apewe dzimbiri ndi kukula kwa madzi.
Ngakhale kuti imagwiritsidwa ntchito mosiyanasiyana, maleic anhydride ndi acidic komanso yowononga, ndipo kugwiritsidwa ntchito ndi kusungidwa kwake kumafuna njira zodzitetezera kwambiri. Maleic anhydride imayamwa mosavuta chinyezi m'malo ozizira, kotero imafunika kusungidwa mu chidebe chotsekedwa. Kuphatikiza apo, mayankho a maleic anhydride amawononga pang'ono, ndipo zida zoyenera zotetezera ziyenera kuvalidwa mukamagwiritsa ntchito kuti musakhudze khungu ndi maso. Pakupanga mafakitale, kugwiritsa ntchito maleic anhydride nthawi zambiri kumachitika m'malo otsekedwa kuti achepetse kuwonongeka kwa chilengedwe.
Mafotokozedwe
| Dzina la Chinthu | Maleic Anhydride | |||||||||
| Fomula Yamankhwala | C4H2O3 | |||||||||
| Kulemera kwa Maselo | 98.06 g/mol | |||||||||
| Maonekedwe | Ma briquette oyera | |||||||||
| Malo Osungunuka | 52.8°C | |||||||||
| Malo Owira | 202°C | |||||||||
| Kuchulukana | 1.48 g/cm³ | |||||||||
| CAS NO | 108-31-6 | |||||||||
| Khodi ya HS | 2917140000 | |||||||||
| EINECS NO | 203-571-6 | |||||||||
| Kugwiritsa ntchito | Yogwiritsidwa ntchito mu utomoni wa polyester wosakhuta, zokutira, ndi mankhwala ophera tizilombo | |||||||||
Pepala Lowongolera Ubwino
| Dzina la Chinthu | Maleic Anhydride | ||||||
| CHINTHU | Mtengo Wamba (%) | MTENGO WA MAYESO (%) | |||||
| Maonekedwe | Ma briquette oyera | Ma briquette oyera | |||||
| Chiyero (ndi MA) | 99.5WT%mphindi | 99.72WT% | |||||
| Mtundu Wosungunuka | 25APHA Max | 15APHA | |||||
| Malo Olimbitsa | 52.5℃ Mphindi | 52.6℃ | |||||
| Phulusa | 0.005WT% Max | ＜0.001WT% | |||||
| Chitsulo | 3PPM Max | 0.32PPM | |||||
Powombetsa mkota
Mwachidule, maleic anhydride, monga chinthu chofunikira kwambiri chachilengedwe, imagwira ntchito yofunika kwambiri m'mafakitale osiyanasiyana. Sikuti imangowonjezera magwiridwe antchito ndi mtundu wa zinthu zokha komanso imathandizira chitukuko cha mafakitale amakono. Ndi kupita patsogolo kwaukadaulo kosalekeza, mwayi wogwiritsa ntchito maleic anhydride udzakhala wokulirapo.