On the broad stage of daily life and industrial production, adhesive tape is like a low-key but versatile "supporting role", which is ubiquitous and vital. The transparent tape wrapped layer by layer by express delivery ensures the safety of goods in long-distance transportation; in home decoration, masking tape helps to create a neat and beautiful paint border; in industrial manufacturing, various high-performance tapes are responsible for key tasks such as fixing, sealing, insulation, etc. It can be said that adhesive tape has been integrated into every corner of life and production, becomingmainPart of it.

Behind the seemingly simple function of adhesive tape, there is a key factor that determines its quality - initial adhesion and holding adhesion. Simply put, it refers to the ability of tape to resist displacement and maintain adhesion after being pasted. It is like the "invisible power" of tape, silently affecting the effectiveness of tape in various scenarios. Imagine that during the transportation of express packages, if the tape has insufficient adhesion, it may cause the cardboard box to crack and items to scatter; in construction, if the tape used to fix ceramic tiles or seal gaps has poor adhesion, over time, the tiles may loosen and the sealing effect will be greatly reduced, thereby affecting the overall quality of the project. Therefore, the importance of adhesion to tape quality is self-evident. It is one of the core indicators to measure whether the tape can perform its job, directly related to the reliability and durability of tape in practical applications.
In order to ensure that the adhesive tape can stably exert its adhesive performance in various scenarios, a series of strict standards have been established in the industry to standardize the adhesion testing. Among them, GB/T 4851 "Test Method for Adhesive Tape Holding Adhesion" is an important national standard for adhesive tape holding adhesion testing in China. This standard provides detailed regulations for various aspects of testing, including testing equipment, sample preparation, testing environment, and testing steps.

Recommended testing instruments: CZY-01 initial viscosity tester+CZY-03 holding viscosity tester

Test Process

1. Sample preparation: Cut the adhesive tape sample according to the standard to ensure a clean and smooth surface.

2. Sample sticking: Stick the tape onto the test board, compact it evenly, and ensure the quality of the sticking.

3. Set test parameters: According to the GB/T 4851 standard, set the test time (such as 10 seconds, 30 seconds, 1 minute, etc.), temperature, and humidity conditions.

4. Perform testing: Start the adhesive tester, simulate actual bonding conditions, and measure the adhesive amount or force of the tape within a preset time.

5. Data recording: Record the adhesion effect in each test and draw the adhesion retention curve.

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