Waipiro Polyvinyl CAS: 25213-24-5

He nui te whakamahinga o te waipiro polyvinyl (PVA) puta noa i ngā ahumahi rerekē nā ōna āhuatanga whakamiharo. I roto i te ahumahi piripiri, he mea nui ia i roto i ngā momo whakatakotoranga, e whakarato ana i ngā āhuatanga piri kaha i roto i ngā tono mai i ngā piripiri rakau ki ngā piripiri pepa. Nā tōna wairewa-wai me ōna āheinga hanga kiriata, he mea nui ia i roto i te hanga rauemi takai wairewa-wai, putea horoi, me ngā kaihoko rahi kakahu, e tuku ana i ngā otinga mō ngā hiahia takai hoa-taiao me te wairewa. I roto i te ahumahi kakahu, he whānui te whakamahinga o te PVA hei kaihoko rahi warp hei whakarei ake i te tukanga raranga, e whakarato ana i te kaha me te ngāwari ki ngā miro. Hei tāpiri, he colloid tiaki i roto i te hanga i ngā copolymers e hangai ana ki te vinyl acetate me te mea here i roto i te tānga tae. Hei tāpiri, he mahi nui te PVA i roto i te ahumahi pepa, e whakamahia ana hei kaihoko rahi mata hei whakapai ake i te kaha o te pepa, te āheinga tā, me te mimiti waituhi. Ka whakamahia e ngā ahumahi rongoā me te kai te PVA i roto i te hanga capsules, hei kaihoko paninga mō ngā papa, me te hanga kiriata kai mō ngā takai kai. Nā tōna hototahitanga koiora me tōna āhua kore-paitini, ka waiho te PVA hei rauemi whai hua i roto i ngā tono hauora, tae atu ki te mea he wāhanga i roto i ngā takai patunga, ngā pūnaha tuku rongoā, me ngā tūāpapa hangarau kiko. I te nuinga, ko ngā tono kanorau o te PVA e whakaatu ana i tōna hiranga hei polymer maha-whakamahinga i roto i ngā momo rāngai ahumahi me te arumoni.