Preparation method for anti-rust flexible abrasive blasting material

A spray grinding and abrasive technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as large closed holes, affecting the quality of anti-rust or spraying treatment, and high process control requirements

Inactive Publication Date: 2015-05-13
NANJING RECLAIMER ENVIRONMENTAL TEKNIK
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Problems solved by technology

But it also has certain limitations: when water and prepolymer are mixed, it is a chemical reaction that is almost impossible to control, because the chemical reaction occurs immediately after the mixing is completed, and it is self-sustaining, the chemical reaction is very fast, and the process control requires High; rapid reaction between free water and prepolymers tends to generate large closed pores, which reduces the quality of the sponge; after large-area blasting treatment, if anti-rust treatment is not done in time, the treated surface will rust again, affecting subsequent anti-rust or spray treatment quality

Method used

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  • Preparation method for anti-rust flexible abrasive blasting material

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Embodiment 1

[0050] Such as figure 1 As shown, a schematic diagram of the process flow of a rust-proof flexible medium spray grinding preparation method of the present invention. In the preparation process of the flexible spray grinding material, the prepolymer adopts toluene diisocyanate, the abrasive adopts aluminum oxide, the water-absorbing polymer adopts a fully hygroscopic polymethacrylic acid water-absorbing resin, and the antirust agent adopts a non-aqueous antirust product. The weight ratios of the abrasive particles, the prepolymer, the fully hygroscopic water-absorbing polymer, and the rust inhibitor are respectively 79%, 18%, 2.8%, and 0.2%. After the prepolymer and rust inhibitor are uniformly mixed in the prepolymer storage tank 61, they are heated to about 38°C by the prepolymer heating element 83, and then sent to the mixer 74 by the positive displacement screw pump 72, where they are mixed with the abrasive The abrasive in the storage tank 62 is heated to about 37.8°C by t...

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Abstract

The invention relates to a preparation method for an anti-rust flexible abrasive blasting material. A device for uniformly mixing a prepolymer, a water absorbent polymer fully absorbing moisture, an anti-rust agent and an abrasive material is adopted, water released from the water absorbent polymer is used for catalyzing the prepolymer to produce a chemical reaction, a reaction mixture is processed and treated to form the anti-rust flexible abrasive blasting material, and the flexible abrasive blasting material is granulated. The process can effectively control the chemical reaction speed, overcome shortcomings of a conventional production process for the flexible abrasive blasting material, and carry out anti-rust pretreatment on a surface subjected to abrasive blasting while carrying out abrasive blasting, thereby providing a guarantee for the improvement on subsequent anti-rust or spraying quality.

Description

technical field [0001] The invention relates to a method for preparing a flexible abrasive material for sand blasting, in particular to a compound made of a prepolymer, a fully hygroscopic organic polymer hygroscopic material, an antirust agent, and organic and / or inorganic abrasives The utility model relates to an antirust elastic sponge abrasive material, which belongs to the technical field of environmental protection abrasive material manufacturing. Background technique [0002] Sandblasting is widely used in metal rust removal, building surface treatment and other fields. Taking shipbuilding, petrochemical equipment repair, offshore drilling platforms and other facilities as examples, the workload of surface cleaning and maintenance is increasing, the quality requirements are getting higher and higher, and the requirements for surface cleaning technology, safety, and environmental protection are also increasing. Higher and higher. The existing process mainly uses rigi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/14C08L75/04C08K13/02C08G18/10C08G18/30B29B9/06C09K3/14C08G101/00
Inventor 王存荣王海波朱利洪丁琳洪汛平王为华
Owner NANJING RECLAIMER ENVIRONMENTAL TEKNIK
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