Heat-resisting flame-retardant plastic film and preparation method thereof

Abstract

The invention discloses a heat-resisting flame-retardant plastic film and a preparation method thereof. The plastic film comprises the following raw materials in parts by weight: 60-80 parts of polypropylene resin, 10-20 parts of polyvinyl alcohol, 3-8 parts of starch, 8-15 parts of nanometer silicon dioxide, 1-5 parts of bis(tert-butyldioxyisopropyl) benzene, 5-10 parts of polycarbonate, 1-5 parts of sodium carboxymethylcellulose, 0.2-0.6 part of an inorganic flame retardant, 3-6 parts of a plasticizer, 1-5 parts of a styrene-butadiene thermoplastic elastomer and 0.06-0.28 part of a thermal stabilizer. The preparation method comprises the steps of modifying polypropylene resin, mixing materials and reacting. The components of the plastic film disclosed by the invention are safe and nontoxic; the preparation method is simple and controllable; the plastic film has excellent heat resistance, flame resistance and weather fastness; and the plastic is light in weight and has excellent mechanical properties, such as, chemical substance resistance, impact strength and tearing strength.

Description

technical field [0001] The invention relates to the technical field of plastic films, in particular to a heat-resistant and flame-retardant plastic film and a preparation method thereof. Background technique [0002] At present, with the development of the economy, plastics have been widely used in industry and life. China's plastic film industry is in a stage of vigorous development. Moreover, with the continuous emergence of various new materials, new equipment and new processes, China's plastic films will be developed in the direction of diversified, specialized and multifunctional composite films. As a general-purpose material, polypropylene is widely used due to its small specific gravity, easy processing, corrosion resistance, non-toxicity and excellent comprehensive performance. Most polypropylene films now have the problem of flammability. In addition, forming a permanent heat-insulating film on the door and window glass can certainly have the desired effect when i...

AI Technical Summary

Problems solved by technology

As a general-purpose material, polypropylene is widely used for its small specific gravity, easy processing, corrosion resistance, non-toxicity and excellent comprehensive performance. Now most polypropylene films have the problem of flammability

In addition, forming a permanent heat-insulating film on the door and window glass can certainly have the desired effect when it is necessary to prevent strong light from raising the room temperature too much, but in seasons or periods that need to be conducive to sunlight to increase the room temperature, the existence of the heat-insulating film Instead, it became an obstacle

At this stage, the cost of directly sputtering tin oxide coating on the glass plate is still relatively high, which affects the promotion of thermal insulation film technology to a certain extent.