The invention relates to an efficient slow-release carbon source with MDI chemical modification and its processing method, composed of PBAT, corncob, AIBN, BCTPA, MDI, industrial diffusion oil and wetting dispersant. The processing steps are as follows: Mix PBAT and corncob evenly, then add AIBN and BCTPA and stir uniformly at room temperature; feed the mixture into a twin-screw extruder with segmented temperature control during processing; freeze the product with liquid nitrogen and crush it into powder; incorporate corncob powder to adjust its content to 50～80%; add industrial diffusion oil and wetting dispersant in sequence, followed by MDI; feed the blended powder into the twin-screw extruder with segmented temperature control, and collect stable discharged materials to obtain the MDI-modified high-efficiency slow-release carbon source. This invention establishes chemical bonding between corncob and PBAT, which significantly improves the slow-release performance of the product.
Country Code: CN
Application Number: CN202411129160.6
