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Method for preparing flexible abrasive blasting material

A blasting and abrasive technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of large closed pores, reduced sponge quality, high process control requirements, and achieve the effect of uniform mixture and elimination of production.

Inactive Publication Date: 2015-05-20
NANJING RECLAIMER ENVIRONMENTAL TEKNIK
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  • Abstract
  • Description
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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 prepolymer tends to generate larger closed pores and reduce sponge quality

Method used

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  • Method for preparing flexible abrasive blasting material

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Embodiment 1

[0048] Such as figure 1 As shown, the process flow diagram of a flexible media jet milling preparation method of the present invention. In the preparation process of the flexible abrasive material, toluene diisocyanate is used as the prepolymer, aluminum dioxide is used as the abrasive material, and fully hygroscopic polymethacrylic water-absorbing resin is used as the water-absorbing polymer. The weight ratios of abrasive grains, prepolymers, and fully hygroscopic water-absorbing polymers are 79%, 18%, and 3%, respectively. After the prepolymer is uniformly mixed in the prepolymer storage tank 61, it is 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, and mixed with the abrasive storage tank 62 After being heated by the abrasive heating element 81 to about 37.8°C, the abrasive sent out by the abrasive metering screw 73 is evenly mixed in the mixer 74, and then evenly mixed with the fully hyg...

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Abstract

The invention relates to a method for preparing a flexible abrasive blasting material. According to the method, a device for uniformly mixing a prepolymer, a water-absorption polymer which is sufficiently moisturized and a grinding compound is adopted, water released by the water-absorption polymer is used for catalyzing the prepolymer to perform a chemical reaction, the reaction mixture is processed to form a flexible abrasive blasting material, and the flexible abrasive blasting material is granulated. The method can be used for effectively controlling the chemical reaction speed and eliminate the defect of a traditional flexible abrasive blasting material production process, and provides guarantee for producing a high-quality flexible abrasive blasting material.

Description

technical field [0001] The invention relates to a method for preparing a flexible abrasive material for sandblasting, in particular to an elastic sponge abrasive compounded by a prepolymer, a fully hygroscopic organic polymer hygroscopic material, and organic and / or inorganic abrasives. The invention belongs to the technical field of environmental protection abrasive 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 rigid abrasives such as steel grit or corundum, combined with wet sandblastin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/08C08J5/14C08L75/04C08G18/10C08G18/30B29B9/06C09K3/14C08G101/00
Inventor 朱利洪王海波丁琳王为华洪汛平
Owner NANJING RECLAIMER ENVIRONMENTAL TEKNIK
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