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Method for testing tactile viscosity of adhesive and fixing device

A technology of fixing devices and adhesives, which is applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problem of not seeing the repeatability test result data of pressure-sensitive adhesives, and achieve the reduction of test uncertainties, easy operation, and high precision The effect of test result data

Pending Publication Date: 2020-06-09
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quantitative testing of tackiness of adhesives in existing technologies at home and abroad is basically limited to pressure-sensitive adhesives. For the characterization of tackiness of non-pressure-sensitive adhesives, there are several non-parallelisms provided in the above-mentioned report on the "SATRA / NPL Shoe TackTester" test device. For the test result data of the sample, there are almost no other publications on related work, and as far as we know, there is no repeat test result data on the characterization of touch tack for other types of adhesives other than pressure-sensitive adhesives in the existing literature

Method used

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  • Method for testing tactile viscosity of adhesive and fixing device
  • Method for testing tactile viscosity of adhesive and fixing device
  • Method for testing tactile viscosity of adhesive and fixing device

Examples

Experimental program
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preparation example Construction

[0050] The preparation method of the present invention will be further described in detail in conjunction with specific examples below. It should be understood that the following examples are only for illustrating and explaining the present invention, and should not be construed as limiting the protection scope of the present invention. All technologies realized based on the above contents of the present invention are covered within the scope of protection intended by the present invention.

[0051] The experimental methods used in the following examples are conventional methods unless otherwise specified; the reagents and materials used in the following examples can be obtained from commercial sources unless otherwise specified.

[0052] The so-called "test piece" refers to the sample piece coated with adhesive or the sample piece to be adhered by adhesive, wherein the former is a sample strip, sample tape or sample block with a certain size and specification coated with adhe...

Embodiment 1

[0056] Such as Figure 1-Figure 2 Shown, a kind of fixing device of testing adhesive touch tackiness, described fixing device comprises:

[0057] The upper fixture 1 and the lower fixture 2, the upper fixture 1 and the lower fixture 2 are arranged up and down on the axis perpendicular to the ground and can move relative to each other; the upper fixture 1 and the lower fixture 2 are used to fix the test piece 61 / 62, wherein, after the test piece 62 fixed by the upper clamp contacts with the test piece 61 fixed by the lower clamp, the adhesive surface 5 is formed; the surface of the test piece 62 is coated with the adhesive to be tested, and the surface of the test piece 61 may be Coated with adhesive, the test piece 61 may also be an adherend that is not coated with adhesive;

[0058] a hook 3, the hook 3 is arranged on the top of the upper fixture 1, and is fixedly connected with the upper fixture 1;

[0059] The mass assembly 4, the mass assembly 4 is located above the upp...

Embodiment 2

[0070] The operation steps of the touch tack test of different adhesives:

[0071] 1. Preparation of test pieces and testing steps:

[0072] 1.1 Use a cutting knife to cut a sufficient number of test pieces of specified size on the substrate material to be loaded with adhesive (pressure-sensitive adhesive tapes used at room temperature do not require adhesive brushing and activation steps, and can be followed up after cutting and fixing) testing; PSAs without a substrate need to be coated on a relevant substrate of a certain size before being fixed and tested).

[0073] 1.2 The test piece should be treated accordingly.

[0074] 1.3 Brush the fluid adhesive on the test piece with a brush or other tools to become a test piece. It is required to paint thinly and evenly, without glue accumulation or lack of glue, preferably a wire bar coater with a nominal 200μm. Then activate the adhesive on the test piece (water-based or solvent-based adhesives can be dried and activated by h...

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Abstract

The invention relates to a method and a device for testing tactile viscosity of an adhesive. The fixing device is beneficial to conveniently fixing various types of adhesive test pieces for quantitative test, and is beneficial to obtaining high-precision test data representing the tactile viscosity. The method, tactile viscosity of the adhesive in a non-room-temperature state can be measured. Themethod is advantaged in that the stress and the stress time of a bonding surface can be accurately and conveniently adjusted through the technical characteristics that a mass-adjustable assembly and an upper clamp fall off from the tension equipment in time and then are connected. By adopting the method, test pieces can be prepared and replaced easily, and the method can be suitable for mounting and testing various adhesive type test pieces.

Description

technical field [0001] The invention belongs to the field of adhesive testing, and in particular relates to a method and a fixing device for testing the tackiness of an adhesive. Background technique [0002] my country's national standard "GB / T 2943-2008 Adhesive Terminology" defines "stickiness" corresponding to the English "TACK", which refers to "the property that the adhesive will form a certain bonding strength immediately after a slight pressure is applied to the adherend". The American Society for Testing and Materials standard "ASTM D907-2015 Standard Terminology of Adhesives" defines "tack-the property of an adhesive that enables it to form a bond of measurable strength immediately after adhesive and adhere are brought into contact under low pressure". These two standards have the same meaning, and both emphasize the force characteristics of the adhesive when it embodies TACK: the force is small and the force time is short during bonding. TACK embodies the ability...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 许莹
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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