Heat-resistant polypropylene plastic film and preparation method thereof

Abstract

The invention discloses a heat-resistant polypropylene plastic film, comprising the following materials according parts by weight: 0.1-0.2 part of 1-glycerol stearate, 0.1-0.3 part of alkenyl succinic anhydride, 0.1-0.16 part of ricinoleic acid, 2-3 parts of tris(nonylphenyl) phosphite, 210-300 parts of polypropylene, 7-9 parts of montmorillonite powder, 1-2 parts of lanthanum chloride, 5-6 parts of polyvinyl alcohol, 2-3 parts of sodium carbonate, 0.7-1 part of aluminum dihydrogen phosphate, 2-3 parts of calcium petroleum sulfonate, 0.4-1 part of sodium dodecyl sulfate, 3-5 parts of bisphenol A phosphite, 1-2 parts of calcium stearate, 1-2 parts of zinc stearate, 0.6-1 part of diacetone acrylamide, and 1-2 parts of hydroxyethyl cellulose. In the invention, limestone is treated using hydroxyethyl cellulose and mixed with aluminum dihydrogen phosphate solution, thus improving viscosity of a mixture system and improving the strength of bonding of the limestone with heat-resistant additives, the calcium stearate and the zinc stearate. The invention also adds bisphenol A phosphite, tris(nonylphenyl) phosphite and the like, further improving heat resistance stability of a plastic film product.

Description

Technical field [0001] The invention relates to the technical field of plastic films, in particular to a heat-resistant polypropylene plastic film and a preparation method thereof. Background technique [0002] At present, plastic packaging bags can store and transport products quickly and efficiently due to their good storage and portability. They are more and more widely used in our daily production and life. Plastic film is now a common daily necessities for people. Plastic film has the advantages of good transparency, good moisture resistance, excellent heat resistance, convenient use, and low price. It is widely used in various industries. At present, the plastic film on the market is mainly polyethylene plastic film, but some products There will be problems such as wrinkles, poor transparency, uneven thickness, and more film bubbles. Some plastic films are used for food packaging, but they contain toxic plasticizers, which affect the quality of food and endanger human heal...

AI Technical Summary

Problems solved by technology

[0002] At present, due to its good storage and portability, plastic packaging bags can quickly and efficiently store and transport products. They are more and more widely used in our daily production and life. Plastic films are now common daily necessities. Plastic film has the advantages of good transparency, good moisture resistance, excellent heat resistance, convenient use, and low price, and is widely used in various industries. At present, the plastic film on the market is mainly polyethylene plastic film, but some products There will be problems such as wrinkles, poor transparency, uneven thickness, and many fish eyes in the film bubble

Some plastic films are used for food packaging, but they contain toxic plasticizers, which affect the quality of food and endanger human health