2results about How to "Improve grafting efficiency" patented technology

The utility model discloses a clamping frock for grafting, it includes frame structure (1), first clamp (2) for clamping stock (4), second clamp (3) for clamping scion (5), first clamp (2) is provided with two or more than two in parallel, second clamp (3) is provided with two or more than two in parallel, and first clamp (2) and second clamp (3) are set up one by one correspondingly, first clamp (2) includes fixed part and elastic pressure strip, and second clamp (3) also includes fixed part (6) and elastic pressure strip (7). The utility model can gently one -time clamping multiple stock and scion, has realized the grafting of multiple seedling simultaneously, thereby has improved grafting efficiency significantly, and easy operation is simple to operate.

This invention discloses a method for preparing maleic anhydride grafted onto polyolefin elastomers. By absorbing an initiator onto the surface of the polyolefin elastomer followed by dilution, melt extrusion, and separate injection of the diluent in the molten state, this invention effectively alleviates the self-polymerization problem of maleic anhydride molecules. This allows maleic anhydride to be better dispersed in the polyolefin elastomer during grafting, reduces the reaction time of the diluent in the twin-screw extruder screw, minimizes side reactions and byproducts, effectively reduces gelation rate, and improves grafting rate and efficiency. The method provided by this invention for preparing maleic anhydride grafted onto polyolefin elastomers overcomes the limitations of high gelation rate and low grafting rate in existing technologies, which restrict processing and application. The resulting polyolefin elastomer grafted with maleic anhydride possesses the advantages of low gelation rate, high grafting rate, and high grafting efficiency.