2results about How to "Reduced germination" patented technology

The utility model relates to the technical field of butterfly orchid tissue culture, in particular to a seed germination device for butterfly orchid tissue culture, which comprises a connecting box, a guide groove and supporting legs, the outer side of the connecting box is movably connected with a sliding plate, the outer side of the connecting box is fixedly connected with a storage box, the outer side of the connecting box is fixedly connected with a water spray pipe, and the water spray pipe is fixedly connected with a water outlet. An air conveying pump is fixedly connected to the outer side of the connecting box, an air spraying opening is fixedly connected to the outer side of the connecting box, and by starting a pushing hydraulic rod, a containing disc is moved out of the device, the containing disc is pulled out, seeds are placed in the containing disc, the containing disc is placed in a fixing shell, and the fixing shell is pushed into the device; in the seed placement and germination process, air in the seeds is replaced by starting an air conveying pump, water in a storage box is conveyed to a water spraying pipe by starting a conveying pump, the water is discharged from a water spraying head, and air and the seeds are humidified through hammering of the air.

The application provides a polymethyl methacrylate product and a preparation method thereof. The preparation method of the polymethyl methacrylate product comprises the following steps: S1. mixing a resin matrix, a toughening agent, an antioxidant and a light stabilizer to obtain a mixture; the resin matrix comprises a polymethyl methacrylate resin; the toughening agent comprises a core-shell structure toughening agent and a polyester-based toughening agent; the core-shell structure toughening agent comprises a core and a shell layer; the core comprises polybutyl acrylate, and the shell layer comprises polymethyl methacrylate; S2. melt blending, extruding and granulating the mixture, and drying, injection molding, cooling and annealing. In the application, the core-shell structure toughening agent and the polyester-based toughening agent can synergistically improve the toughening effect.