4 results about "Organic phosphates" patented technology

This invention discloses a compound modified masterbatch for improving the heat-sealing strength of PLA tea bags and its preparation method, belonging to the field of polymer materials technology. By weight, it comprises the following components: 35-50 parts polylactic acid carrier; 18-28 parts toughening agent; 3-8 parts composite nucleating agent; 1-4 parts crystallization promoter; 2-5 parts interface compatibilizer; and 0.5-2 parts antioxidant. The toughening agent is a blend of polybutylene adipate-terephthalate and polybutylene succinate in a mass ratio of (1.5-2.5):1. The composite nucleating agent is composed of an organophosphate nucleating agent and an acylhydrazine compound in a mass ratio of 1:(0.8-1.5). This invention systematically improves the heat-sealing strength of PLA tea bags from three dimensions—toughening, nucleation, and promotion—from the perspectives of interfacial adhesion, crystal structure, and molecular motion, overcoming the limitations of single modification methods.

The present invention relates to the technical field of preparation of polyethylene modified materials. Disclosed are a modifying additive and a polyethylene modified material composition, a polyethylene modified material, and a preparation method therefor and a use thereof. The modifying additive is an organic compound and / or an inorganic substance. The lengths of the modifying additive in the x, y, and z directions in three‑dimensional space do not exceed 200 μm, and the melting point of the modifying additive is greater than or equal to 139.0°C. The organic compound is selected from one or more of sorbitol benzylidene derivatives, aliphatic carboxylic acid metal compounds, aromatic carboxylic acid metal compounds, organic phosphates, lignic acids and derivatives thereof. The inorganic substance is selected from one or more of metals, non-metal solid oxides, and non-metal elemental substances. By using the modifying additive, the viscosity of the polyethylene modified material during flow-field processing can be reduced, and the molecular weight distribution thereof can be utilized to improve the degree of orientation, thereby enhancing the lateral impact resistance of a final product.

The application relates to the technical field of medical packaging materials, and particularly discloses a high-temperature and high-pressure resistant modified polypropylene resin, a preparation method thereof and a vaccine bottle processed by using the same. The high-temperature and high-pressure resistant modified polypropylene resin is mainly made of the following raw materials: polypropylene resin, hydrogenated styrene-butadiene-styrene block copolymer, modified nano montmorillonite, organic phosphate nucleating agent, calcium stearate, hindered phenolic antioxidant and phosphite antioxidant. The modified nano montmorillonite is obtained by treating nano montmorillonite with 3-(methacryloyloxy)propyl trimethoxysilane, maleic anhydride, glycidyl methacrylate and dodecafluoroheptyl methacrylate. The modified polypropylene resin has the characteristics of high tensile strength, high impact strength, high heat resistance and high barrier property, can meet the high-temperature sterilization requirement of 121 DEG C for 30 min, and the vaccine bottle does not soften, deform or collapse during high-temperature sterilization, and the sealing integrity is maintained.

The utility model provides a kind of organic phosphate in water body high-efficiency concentration device, it is related to phosphate processing technical field, the outside of conical bottom separation tank is provided with phosphate high-efficiency concentration subassembly, the phosphate high-efficiency concentration subassembly includes the liquid pumping pump connected in the outer wall of conical bottom separation tank, the outside of the liquid pumping pump is connected with filter sampling pipe, the one side of filter sampling pipe is connected with infusion tube;With reciprocating type air pressure pump reciprocates, liquid is extruded into filter sampling pipe by infusion tube, and the liquid pumping pump between secondary filter disc and tertiary filter disc directly extracts filtered liquid into filter sampling pipe, directly carries out subsequent filtration, and hydraulic pump rod drives extruding rod to adjust, to drive folding enrichment column to stretch and retract, and the C18 filter membrane filled in folding enrichment column interior uses multilayer composite material, effectively intercepts fine particle, and can adjust the height of folding enrichment column, to reach the effect of adjusting enrichment efficiency.