Isu takagadzira yakaderera-chepfu dimer acid diisocyanate (DDI) nekushandisa bio-inovandudzwa mbishi zvinhu uye hunyanzvi tekinoroji mukupindura huturu hwepamusoro hweanowanzo shandiswa isocyanates mumusika wepamba uye kukuvadza kwakanyanya kumuviri wemunhu.Iwo maratidziro asvika padanho reUS chiyero chemauto (MIL-STD-129).Iyo isocyanate molecule ine 36-carbon dimerized fatty acid refu cheni, uye imvura patembiricha yekamuri.Iyo ine zvakawanda zvakanaka senge yakaderera toxicity, nyore kushandisa, soluble mune zvakawanda zvinonyungudutsa, inodzoreka kuita nguva uye kuderera kwemvura kunzwa.Iyo yakajairwa yakasvibira bio-inovandudzwa yakakosha isocyanate siyana, inogona kushandiswa zvakanyanya mumauto nevevanhu minda sekupedza machira, elastomers, anonamira uye sealants, machira, ingi, nezvimwe.