Izingxobo zokupakisha ezonakeleyo zithetha ukuba zinokuthotywa, kodwa ukuthotywa kungahlulwa zibe "zinokonakala" kunye "nokonakala ngokupheleleyo".
Ukuthotywa ngokuyinxenye kubhekiselele ekongezeni izongezo ezithile (ezifana nestatshi, isitatshi esilungisiweyo okanye enye iseliulose, iiphotosensitizers, biodegradants, njl.njl.) ngexesha lenkqubo yokuvelisa ukuze izinze.
Emva kokuwa, kulula ukuthothisa iiplastiki kwindawo yendalo.
Ukuwohloka ngokupheleleyo kuthetha ukuba zonke iimveliso zeplastiki ziwohloka zibe ngamanzi kunye necarbon dioxide. Eyona nto iphambili ekrwada yesi sixhobo esonakaliswa ngokupheleleyo icutshungulwa ibe yi-lactic acid (umbona, i-cassava, njl.), ekuthi.
I-PLA. I-Polylactic acid (PLA) luhlobo olutsha lwe-bio-based and renewable biodegradable material. Isitashi sezinto ezikrwada singcwatywa ukuze kufunyanwe iswekile, ethi emva koko ivundiswe yiglucose kunye neentlobo ezithile.
Iguqulwa ibe yi-high-purity lactic acid, kwaye ke i-molecular weight polylactic acid idityaniswe yi-chemical synthesis method. Inokonakala kwebhayoloji elungileyo kwaye inokusetyenziswa ziintsholongwane ezikwilizwe lendalo.
Ithotywa ngokupheleleyo phantsi kweemeko ezithile kwaye ekugqibeleni ivelise i-carbon dioxide namanzi ngaphandle kokungcolisa indalo. Oku kuluncedo kakhulu ekukhuselweni kwendalo kwaye kubonwa njengento ehambelana nokusingqongileyo. Ngoku iingxowa zokupakisha ezonakaliswa ngokupheleleyo
Izinto eziphambili ze-bio-based ziqulunqwe yi-PLA + PBAT, enokuthi ihlanjululwe ngokupheleleyo emanzini kunye ne-carbon dioxide kwiinyanga ezi-3-6 phantsi kweemeko zomgquba (i-60-70 degrees), engayingcolisi indalo.
Kutheni ukongeza i-PBAT Shenzhen Jiuxinda apha ukukuxelela ukuba i-PBAT i-copolymer ye-dicarboxylic acid, i-1,4-butanediol, kunye ne-terephthalic acid. Luhlobo lokubola ngokupheleleyo.
Ipolymer enevumba elimnandi eyenziwe ngamachiza, i-PBAT inokuguquguquka okugqwesileyo kwaye ingasetyenziselwa ukukhutshwa kwefilimu, ukuqhutyelwa kokuvuthela, ukugquma kwe-extrusion kunye nokunye ukubumba. I-PLA kunye ne-PBAT
Injongo yokuxuba kukuphucula ukuqina kwe-PLA, i-biodegradation kunye nokubunjwa kwe-processability. I-PLA kunye ne-PBAT azihambelani, ngoko ke ukukhetha i-compatibilizer efanelekileyo kunokwenza ukusebenza kwe-PLA kubaluleke kakhulu.ukuphucula.
Ixesha lokuposa: Sep-03-2021