Method for measuring number of holes of polyurethane sponge

Abstract

The invention discloses a method for measuring the number of holes of polyurethane sponge and belongs to technical field of polyurethane filter materials for automobile carbon tanks. The method comprises the following steps of: 1) sampling; 2) calibrating an instrument; 3) microscope imaging; 4) measuring the diameters of holes; 5) calculating the diameter of a single hole; and 6) calculating thenumber of the foam holes of the polyurethane sponge. According to the method for measuring the number of the holes of polyurethane sponge, scientific carding and unification are carried out aiming atthe disordered state of an existing detection theory; the theory, the method and the technical means for solving the problem of the number of the holes of the polyurethane sponge porous material are systematically solved; the detection efficiency and accuracy are greatly improved; mathematical and experimental verification means are provided for the scientificity and accuracy; science, accuracy, practicability, standardization, timeliness and effectiveness are truly achieved; the industrial, domestic and international technical blank is filled up; and a new era of scientific application of theporous material is created.

Description

technical field [0001] The invention belongs to the technical field of polyurethane filter materials for automobile carbon tanks, in particular to a method for measuring the number of pores of a polyurethane sponge. Background technique [0002] With the implementation and execution of the national 5 emission standards for passenger cars, the use of polyurethane open-cell filter materials in automobile carbon canisters has been greatly increased, but the precise monitoring and evaluation of its filtration effectiveness has also been raised to a new height , this trend will inevitably require OEMs and auto parts material suppliers to improve the overall level of relevant technical theories, technical testing, scientific verification and evaluation of polyurethane sponge open-cell materials as soon as possible, so as to fully adapt and meet the needs of the automotive industry towards low emissions. The new demands of environmental protection development. The existing measure...

AI Technical Summary

Problems solved by technology

The existing polyurethane sponge open-cell material has the problems of fuzzy concept, lack of theory, chaotic logic, primitive means and no unified industry-accepted standard in the measurement of the number of pores.

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