Mthandizi wogwira ntchito amadziwikanso kuti akuvulaza wothandizira. Chinthu chowoneka bwino kapena chorganic chomwe chimagwiritsidwa ntchito kupangitsa kuti zithandizike zithandizike. Itha kukulitsa kuthekera kwa okuthandizani, kuchepetsa kuchuluka kwa ntchito, ndikufupikitsa nthawi yopuma. Ambiri mwa owonjezera ochulukirapo ndi ma oxides, hydroxide ndi carbonation, monga zinc. 5% ya kulemera kwa mphira.

Zowonjezera za mphira: katundu watsatanetsatane, zabwino, zogwiritsidwa ntchito

1. Zinc oxide (ZNO)

Katundu:

• Ufa woyera, wopanda fungo ndi mphamvu yapamwamba kwambiri (5.6 g / cm³).

• Malo osungunuka: 1,975 ° C; Index yolondola: 2.008-2.029.

• Kutengeka kwapamwamba ngati wogwira ntchito.

• Kuletsa uve ndi mantimicrobial.

Ubwino:

• Imathandizira sulfur Valcananization (amachepetsa nthawi yolemba 20-30%).

• Amasintha mphamvu zamakina (kunenepa mphamvu + 15-25%, kutalika kwinaku pothina + 10-15%).

• FDA-Yovomerezeka kuti mupeze pulogalamu yolumikizana ndi chakudya (21 CFR 172.480).

• Zachilengedwe.

Mapulogalamu:

• Matayala: Mitembo yakale yam'madzi yopanda zitsulo (imathandizira kutengera pakati pa mphira ndi chitsulo).

• Nsapato: Mafuta atuluka (amathandizira kukana, Astm D5963: 50-80 MMP).

• Zachipatala: Magolovesi opangira zopangira (antimicrobial chitetezo, Astme E2149).

• Kumatira: Kulumikizana kwa mphira-rabara (kumachulukitsa kusenda mphamvu ndi 30-40%).

2. Phenolic Resin

Katundu:

• Thermosetting polymer ndi mphamvu yayikulu.

• Kutsutsa Kutentha: Kugwiritsa ntchito mopitilira 180 ° C (kwamentiet 250 ° C).

• Kukhazikika kwambiri (modulus: 2-4 GPA) ndi kukhazikika kwakanthawi.

• Kukaniza kwa mankhwala kwa asidi, zitsulo, ndi ma solver.

Ubwino:

• Amapereka zolimbitsa thupi (zimawonjezera kuuma ndi 10-20 m'mphepete mwa 10-20 m'mphepete mwa).

• Flame retard (Ul94 V-0 popanda halogen zowonjezera).

• Mtengo wogwira mtima poyerekeza ndi a thermopistics yapadera.

• Njira zochiritsira (asidi-acid-acid kapena oyambitsa kutentha).

Mapulogalamu:

• Matayala: Mafuta am'mbali (amaluma pokana kukana, Asthem D624).

• Zilembo za mafakitale: malamba onyamula madera ambiri otentha (mwachitsanzo, mbewu za simenti).

• Zida zokangaka: mapiri onyengerera (amasungabe zolimba za mikangano pa 0.35-0.45 pansi pa 200 ° C).

• Makampani: Mangani a Sand Baners (amachepetsa chisinthiko pakuwulutsa).