Method for determining gluing viscosity of water-based adhesive and application thereof
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A determination method and technology for water-based adhesives, which are applied in measurement devices, flow characteristics, instruments, etc., can solve the problems of difficulty in implementation and promotion, high cost, unsuitable for viscosity judgment of water-based adhesive products, etc., and meet the requirements of low cost and equipment. Low, easy-to-use effect
Active Publication Date: 2013-12-11
CHINA TOBACCO GUANGDONG IND
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If the viscosity value of water-based adhesive is detected by the existing rotational viscometer method and viscosity cup method, it often appears that the product viscosity label value at the time of purchase meets the product requirements, or the laboratory test judges that the viscosity value of the water-based adhesive product is qualified, and the application The viscosity of the water-based adhesive is unqualified in actual production, and with the substantial increase in the produc
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Embodiment 1
[0037] In this embodiment, a detection device is designed according to the detection method of the present invention as attached figure 1 , attached figure 2 or attached image 3 shown.
[0038] attached figure 1 Among them, 1 is the water-based glue supplement tank, 2 is the rotational viscometer method measuring tank, 3 is the water-based glue collection tank, 8 is the rotational viscometer, and 9 is the rotor;
[0039] attached figure 2 Among them, 1 is a water-based glue supplement tank, 2 is a rotational viscometer measuring tank, 3 is a water-based glue collection tank, 8 is a rotational viscometer, 9 is a rotor, and 11 is a support;
[0040] attached image 3 Among them, 1 is the water-based glue supplement tank, 2 is the rotational viscometer method measuring tank, 3 is the water-based glue collection tank, 8 is the rotational viscometer, 9 is the rotor, 10 and 11 are supports.
[0041] The measuring tank 2 of the rotational viscometer method is a cylinder with a...
Embodiment 2
[0050] The difference from Example 1 is that the test temperature of the water-based adhesive was adjusted to 27°C. Measure three times, take the minimum reading value of three times as 2025. Replace the same sample glue and repeat the operation twice according to the above steps, and the standard deviation of the three measurement results is 0.014.
Embodiment 3
[0052] The difference from Example 1 is that the flow pipeline is opened and the flow rate is adjusted to 5.7 liters / hour. Measure three times, take the minimum reading value of three times as 2177. Replace the same sample glue and repeat the operation twice according to the above steps, the standard deviation of the three measurement results is 0.017.
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Abstract
The invention discloses a method for determining gluing viscosity of a water-based adhesive and an application thereof. The method comprises the following steps of arranging a water-based adhesive supplementing unit, a rotational viscometer method measuring unit and a water-based adhesive collecting unit, wherein height differences are sequentially formed between the water-based adhesive supplementing unit, the rotational viscometer method measuring unit and the water-based adhesive collecting unit and the water-based adhesive flows in a flowing pipeline for communicating the water-based adhesive supplementing unit, the rotational viscometer method measuring unit and the water-based adhesive collecting unit, and the rotational viscometer method measuring unit is provided with a rotational viscometer; respectively placing water-based adhesives to be determined in the water-based adhesive supplementing unit and the rotational viscometer method measuring unit, heating the water-based adhesives to be determined to ensure that the temperatures of the water-based adhesives reach a test temperature; and selecting a rotor of a corresponding model for determining the viscosity of the water-based adhesive in the rotational viscometer method measuring unit under the selected rotating speed. The method accords with the actual condition that the water-based adhesive flows when being applied, is simple in process and convenient to operate, is capable of rapidly and directly determining the gluing viscosity of the water-based adhesive, and can be well applied to the pre-judgment on machine applicability on the water-based adhesive before a gluing test is carried out by a water-based adhesive gluing machine.
Description
technical field [0001] The invention relates to the technical field of water-based adhesive testing, and more particularly, relates to a method and application for measuring the viscosity of water-based adhesive during gluing. Background technique [0002] The viscosity of water-based adhesive can be defined as the ratio of its shear stress to shear rate. It is used to measure the internal friction of water-based adhesive during the flow process. It is the gluing performance of water-based adhesive in production applications. main influencing factors. Viscosity testing methods mainly include rotational viscometer method and viscosity cup method. [0003] The rotary viscometer method is to put the container containing the sample into the constant temperature bath, immerse the rotor vertically in the center of the sample and make the liquid level reach the level mark of the rotor, start the rotary viscometer, and read when the pointer is on the disc when it rotates. The read...
Claims
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