Polyurethane rheological property testing device and method

A technology of rheological properties and testing devices, which is applied in the direction of measuring devices, flow characteristics, instruments, etc., and can solve problems such as testing difficult polyurethane grouting materials

Pending Publication Date: 2020-10-27
ZHENGZHOU UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to address the above-mentioned problems and deficiencies, and provide a polyurethane rheological performance testing device and method. The application can directly mix materials through grouting, and control the density of materials by controlling the amount of gr

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  • Polyurethane rheological property testing device and method
  • Polyurethane rheological property testing device and method
  • Polyurethane rheological property testing device and method

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Embodiment Construction

[0056] The following will clearly and completely describe the exemplary schemes of the embodiments of the present invention with reference to the accompanying drawings of the specific embodiments of the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art.

[0057] In the description of the present invention, it should be understood that the expressions "first" and "second" are used to describe each element of the present invention, and do not represent any order, quantity or importance limitation, but are only used to describe One component is distinguished from another.

[0058] It should be noted that when an element is "connected", "coupled" or "connected" to another element, it may mean that it is directly connected, coupled or connected, but it should be understood that there may be Intermediate elements; that is, positional relationships co...

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Abstract

The invention belongs to the technical field of rheological property testing and relates to a polyurethane rheological property testing device. The polyurethane rheological property testing device comprises a base, a rheometer, a mold shell and a shearing plate; a rotating shaft corresponding to the base is arranged at the lower part of the rheometer; the mold shell is arranged on the base; the top of the mold shell is open; the shearing plate is arranged at the lower part of the rotating shaft; the shearing plate is arranged at the top of the mold shell in a matched manner; a sealing unit isarranged between the shearing plate and the side wall of the mold shell; the rotating shaft drives the shearing plate to rotate in the mold shell; the sealing unit is used for sealing the top of the mold shell; and a grouting hole is formed in the mold shell or the shearing plate and is connected with a slurry unit. The invention further discloses a polyurethane rheological property testing method. The density of a material can be controlled by controlling a grouting amount, and meanwhile, the difference between rheological properties of grout formed after grouting and rheological properties of grout formed by stirring and mixing can be tested.

Description

technical field [0001] The invention belongs to the technical field of rheological property testing, and in particular relates to a polyurethane rheological property testing device and method. Background technique [0002] Rheology is mainly to study the viscoelastic response law of materials under external force. For grouting, the rheological properties of materials are the key to the effect of grouting repair. Therefore, a rheometer is usually used to determine the rheological properties of the material, and to adjust the grouting parameters by studying the viscoelasticity of the material under different shear test methods, and then adjust the diffusion range of the grouting material and the post-grouting performance, in order to achieve the purpose of grouting repair. However, for the two-component polyurethane grouting material, the expansion involved in the grouting process is the main feature of its grouting repair. Using the characteristics of rapid reaction, expansi...

Claims

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Application Information

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IPC IPC(8): G01N11/12
CPCG01N11/12
Inventor 石明生王超杰郭成超夏洋洋张曦君郝燕洁薛冰寒李逢源刘琪赵鹏赵线峰
Owner ZHENGZHOU UNIV
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