Anti-aging high-transparency high-strength polypropylene plastic barrel and preparation method thereof

Abstract

The invention belongs to the field of plastic packaging drums, and relates to a polypropylene plastic packaging drum, in particular to an anti-aging, high-transparency, high-strength polypropylene plastic drum and a preparation method thereof. Including the following components: 100 parts of polypropylene resin, 2-8 parts of maleic anhydride grafted polypropylene, 1-3 parts of paraffin oil, 1-10 parts of modified nano powder, 0.1-0.5 parts of antioxidant, auxiliary antioxidant 0.1-0.5 parts of oxygen agent, 0.1-1.2 parts of free radical scavenger and 0.1-0.4 parts of nucleating agent; wherein the modified nano powder is modified by coupling agent, polyester polyol and surfactant get. The polypropylene plastic bucket prepared by the invention has good comprehensive effects such as high heat resistance, leakage prevention, and low temperature resistance, and can improve its mechanical strength and hardness.

Description

technical field [0001] The invention belongs to the field of plastic packaging drums, and relates to a polypropylene plastic packaging drum, in particular to an anti-aging, high-transparency, high-strength polypropylene plastic drum and a preparation method thereof. Background technique [0002] Polypropylene plastic packaging barrel is beautiful and smooth inside and outside, no welding and seamless, light weight, good strength, impact resistance, corrosion resistance, non-toxic and tasteless, convenient transportation, long service life, widely used in coatings, lubricants, food, chemical, hazardous package and many other industries. [0003] Due to the presence of side methyl groups in polypropylene, the molecule contains a large amount of tertiary hydrocarbons, which are prone to macromolecular free radicals, photo-oxidative aging and thermal-oxidative aging, resulting in molecular chain breaks and reduced service life. At the same time, because polypropylene is a cryst...

AI Technical Summary

Problems solved by technology

[0003] Due to the presence of side methyl groups in polypropylene, the molecule contains a large amount of tertiary hydrocarbons, which are prone to macromolecular free radicals, photo-oxidative aging and thermal-oxidative aging, resulting in molecular chain breakage and reduced service life.

At the same time, because polypropylene is a crystalline polymer, the high crystallinity makes the product opaque, which affects the appearance, and it is impossible to see the amount of the contained substance from the outside. If the lid is frequently opened, it is easy to cause damage

Therefore, this patent prepares a transparent anti-aging polypropylene packaging barrel, which has good transparency and excellent anti-aging properties, high strength and thermal deformation capacity, and improves the existing polypropylene barrels with low load and low load. Easy to leak, easy to deform under high temperature, low hardness

[0004] Transparent polypropylene can reduce the crystallinity of polypropylene through copolymerization, reduce the size of spherulites, and increase transparency, but it will reduce the mechanical strength and heat resistance.

Metallocene polypropylene has excellent transparency, but domestic transparent polypropylene products are not satisfactory and need to be modified in many ways

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