What are the standards of the pressure sensitive adhesive tape test report?

Pressure sensitive adhesive tape in the application field, can be in building materials, home appliances, electronics, transportation, packaging, photovoltaic, electrical, automotive and other industries can see it. The effect will be, pressure sensitive adhesive tape is generally in the processing, assembly, transportation, storage and other links in these industries to play the role of packaging, sealing, binding, paste and glazing film. In our country, there are clear standards for the quality detection of all kinds of subsensitive adhesive tape, the relevant standard system is still relatively perfect. In trade, pressure sensitive adhesive tape test report is an important quality certificate quality, of course, the focus of attention is different.

In commercial trade, more and more buyers pay more attention to the technical data of products. Whether the data in the test report of pressure sensitive adhesive tape suppliers meet the needs of purchasers has become the key to the success of many trades. For example, in the booming electronics industry, due to the constraints of the quality system, buyers must require suppliers to provide initial sample test reports in accordance with their specified test standards before making inquiries, so as to prove that the purchased products meet their procurement specifications. This brings up the question, how do you choose criteria? Pressure sensitive adhesive with product testing standards, method testing standards, also need to consider the choice of national testing standards, industry testing standards. Therefore, together with third-party testing institutions, the three parties must give full consideration to the authority, applicability and operability of the standards when formulating the testing scheme.

Moreover, all are flexible, purchasers in the actual economic activities, but also the priority is the performance indicators of pressure sensitive adhesive. Generally speaking, physical performance testing items are the focus of purchasers.

For the physical properties of pressure sensitive adhesive tape, we take several common pressure sensitive adhesive tape national testing standards as an example to introduce.

GB/T37888-2019 specified physical properties of pressure-sensitive adhesive tape test items include: release material properties (release force, tensile degree), bulk properties (thickness, tensile strength, elongation at break, water vapor permeability), bond properties (90° peeling force, holding viscosity, dynamic shear strength), etc.

GB/T22378-2008 specified physical testing items of biphase polypropylene film pressure-sensitive adhesive tape include 180° peeling force, initial adhesion, holding adhesion, tensile strength, elongation at break and low-speed unwinding force.

GB/T30775-2014 specified PE pressure sensitive adhesive physical properties test items mainly include 180° peeling force, tensile strength, elongation at break, etc.

Therefore, in summary, 180° peeling strength, initial viscosity, holding viscosity, tensile strength and elongation are important indicators that almost all adhesive tapes must be measured. Purchasers will also give priority to these items when viewing the test report. Of course, the aging properties of subsensitive adhesive tape and harmful substances are also the project of concern. Harmful substances mainly test the content of lead, mercury, cadmium, Ming, polybrominated biphenyls, polybrominated diphenyl ethers and other items. Aging performance mainly includes thermal cycle aging test, wet heat aging test, wet cold aging test, ultraviolet aging test, thermal aging test, etc. These are also items of concern to purchasers.