Modified polypropylene plate and application thereof

Abstract

The invention discloses a modified polypropylene plate and application thereof. The modified polypropylene plate is obtained by conducting melt extrusion process forming on a polypropylene raw material through a screw extruder, and the polypropylene raw material comprises, by weight, 65-85 parts of polypropylene resin; 10-15 parts of organic silicon resin capable of self-crosslinking; 3-15 parts of polyester resin; 0.3-2 part of a curing agent; 1-15 parts of glass fiber; the preparation method comprises the following steps: uniformly mixing polypropylene raw materials, and carrying out melt extrusion molding through a screw extruder to obtain the modified polypropylene plate; in the melt extrusion process, the curing agent and the polyester resin can be subjected to cross-linking curing reaction, and the organic silicon resin can be subjected to self-cross-linking curing reaction so that the strength and temperature resistance of the modified polypropylene plate can be improved at thesame time; according to the preparation method, the mechanical strength and the temperature resistance of the polypropylene plate can be improved simultaneously, the preparation process is simple, a special modification process is not required to be additionally arranged, and the negative influence on the corrosion resistance of the polypropylene plate is avoided.

Description

technical field [0001] The invention belongs to the field of polypropylene plates, in particular to a modified polypropylene plate, and also relates to the application of the modified polypropylene plate. Background technique [0002] Due to the excellent corrosion resistance of polypropylene PP materials, containers made of polypropylene materials are widely used as storage tanks or reactors in various fields, mainly for storage or reaction of highly corrosive liquids. [0003] However, also due to the limitation of the characteristics of the polypropylene material itself, the polypropylene sheet obtained by extrusion molding of the polypropylene material generally has the defects of low strength and poor temperature resistance, which leads to the application of anti-corrosion equipment (such as reactors or The temperature of the storage tank) usually should not exceed 80°C, otherwise the polypropylene material of the anti-corrosion equipment will decompose, which will lead...

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Problems solved by technology

[0003] However, also due to the limitation of the characteristics of the polypropylene material itself, the polypropylene sheet obtained by extrusion molding of the polypropylene material generally has the defects of low strength and poor temperature resistance, which leads to the application of anti-corrosion equipment (such as reactors or The temperature of storage tank) should not exceed 80°C, otherwise, the polypropylene material of the anti-corrosion equipment will decompose, which will lead to safety accidents. Obviously, this will obviously restrict the application range of polypropylene sheets

[0004] In the prior art, some technologies propose to add some improvers in the polymerization stage of acrylic materials, such as entering organosilicon groups to co-bond with propylene monomers to improve its wear resistance, or adding accelerators to improve its structural strength. These improved technologies It not only leads to a complicated process, but also has a negative impact on the polymerization effect of polypropylene itself, which in turn leads to a negative impact on the properties of the polymerized polypropylene plastic in terms of corrosion resistance and ease of processing, and its temperature resistance has been effectively improved.

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