Gas-phase antirust master batches for multiple metals and preparation method and application thereof

Abstract

The invention provides gas-phase antirust master batches for multiple metals. The gas-phase antirust master batches comprise the following components in percentage by mass: 45-55 percent of thermoplastic resin, 35-45 percent of compound gas-phase inhibitor and 15-25 percent of processing aid. By adding an appropriate quantity of materials into the thermoplastic resin, and performing methods such as blow molding, curtain coating, foaming, extruding, jetting and the like, various high-efficiency gas-phase antirust products such as films, buffering materials, pipe pieces, sections, containers and the like which are protected by the multiple metals can be produced and manufactured. The gas-phase antirust master batches do not contain harmful components such as nitrite, are environmentally-friendly and safe for using, have wide application range, and can meet the anti-rust requirements of iron and nonferrous metals such as iron, chrome, cadmium, tin, nickel, zinc, copper, aluminum and the like or alloys thereof in various links such as production, storage, transportation and the like.

Description

technical field [0001] The invention relates to a functional polymer material for metal protection, in particular to a gas phase anti-rust master batch for multi-metal, a preparation method of the gas phase anti-rust master batch and the use of the gas phase anti-rust master batch in the anti-rust packaging industry specific applications in. Background technique [0002] For a long time, metal corrosion has been a major problem that plagues economic and social development. The traditional anti-rust method using grease is not only cumbersome, time-consuming, and ineffective, but also needs to be cleaned and degreased before unpacking, which easily causes secondary pollution to the environment. Objectively, it is becoming more and more difficult to be accepted by people. . Using vacuum packaging method, the material cost is high, and when packaging large workpieces, it is necessary to invest in special equipment. Although desiccant anti-rust is low in cost and convenient to...

AI Technical Summary

Problems solved by technology

Such as CN01128198.7, CN01127534.0 respectively disclose the process method of manufacturing vapor phase antirust film respectively, but the nitrite contained in its component is a strong carcinogen, so it is difficult to obtain market approval, and CN01127534.0 will vapor phase corrosion inhibition VCI is directly added to the resin to blow the film. Due to the lack of necessary mixing pretreatment, the VCI particles are large and unevenly distributed, making the surface of the film product rough and poor in appearance. Moreover, benzotriazole is used as a paraffin The corrosion inhibitor component of the non-ferrous metal that plays a protective role, due to its low melting point (no more than 100°C), has been melted and vaporized before reaching the temperature required by the blown film process, resulting in the loss of active ingredients and will interact with Other components aggregate and clog the filter

Chinese patent 200810012395.1 discloses a method for preparing a gas-phase antirust composite industrial packaging film, but because it requires a multi-layer co-extrusion blown film unit to produce, it has high requirements for equipment and large investment, and it is difficult to promote in practice, and it is different from CN01128198. 7 is the same, the vapor phase anti-rust film produced by this process only has a certain anti-rust effect on ferrous metals, and lacks or even has no protective function for non-ferrous or multi-metal assemblies.

At present, there is little research in this field in China. CN101323956A discloses "a composite vapor phase anti-rust masterbatch and its preparation process", but only single-component 1-hydroxybenzotriazole is used as a corrosion inhibitor in the formula, and The content is obviously too small, and practice has proved that it cannot achieve good protection for ferrous and non-ferrous metals at the same time