52results about How to "Act as a nucleating agent" patented technology

The invention discloses a biodegradable high-barrier type plastic product and a preparation method of the biodegradable high-barrier type plastic product. The plastic product is prepared from the following raw materials in percentage by weight: 55 percent to 80 percent of polylactic acid, 15 percent to 30 percent of poly(3-hydroxybutyrate-co-4-hydroxybutyrate), 2 percent to 5 percent of polyhydroxyalkanoate containing middle and long chains, 1 percent to 6 percent of grape fruit residue extract and 2 percent to 6 percent of hydrophobic nano silicon dioxide. According to the biodegradable high-barrier type plastic product, the poly(3-hydroxybutyrate-co-4-hydroxybutyrate) is used for toughening the polylactic acid; meanwhile, the low-molecular-weight polylactic acid is added to increase the compatibility of high-molecular-weight polylactic acid and the poly(3-hydroxybutyrate-co-4-hydroxybutyrate); the grape fruit residue extract is used for improving the thermal stability and machinability of the polyhydroxyalkanoate. The biodegradable high-barrier type plastic product provided by the invention has good mechanical strength, anti-falling property and water resistance and air resistance; a machining process is easy to control and the defective rate is low; the biodegradable high-barrier type plastic product can be applied to fields including food packages, cosmetic packages, medicine packages and the like.

The present invention discloses a high tough resin and its preparation methods; its steps include: (2‑ methyl oxyl oxygen) ‑ acetic acid, 3‑ protected amino acid ‑ cytane carboxylic acid and organic alkali reactionReform 3‑ Protective amino acid ‑ cytane carboxylic acid; modify 3‑ protected amino acid ‑ cycol carboxylic acid, mix of mixture of mixture of amino -containing amino groups to obtain a mixture A; put mixed A in the reactor, Seal, nitrogen replacement, discharge air in the kettle, nitrogen filling at 180 ~ 250 ℃, the pressure is 0.6 to 1.5MPa, and the mixture B will be obtained.The material outlet valve, the material is leading, the cold water tank, the granular cutter cut the granules, and dry it to obtain high tough resin; the high tough resin has excellent light transmission and lower fog, that is, it has better transparencyAs well as excellent solvents, at the same time, it has high toughness.

The invention discloses an antistatic, friction-resistant and wear-resistant polyoxymethylene material and a preparation method thereof. The polyoxymethylene material is a mixture of polyoxymethylene, ionic liquid and polytetrafluoroethylene. Its preparation method is to vacuum-dry polyoxymethylene, ionic liquid and polytetrafluoroethylene at 80-120°C for 24-48 hours respectively; dry the polyoxymethylene, ionic liquid and polytetrafluoroethylene according to the mass ratio of 100:0.1-2 : 1-20, put into melt extrusion equipment and carry out melt extrusion at 170-200 DEG C to obtain a mixture; discharge the mixture from the melt extrusion equipment and lower to normal temperature to obtain a polyoxymethylene material. The polyoxymethylene material in the present invention has excellent antistatic performance and friction and wear resistance, and its preparation method only needs to use common melting extrusion equipment, and the industrial preparation is simple.