plasters, patchesPeel strengthThe inspection is extremely important, and it attaches equal importance to the initial adhesion, holding and adhesion, which are the four important indicators of the adhesion test of pharmaceutical patches. It is used to characterize the adhesion of plasters and patches (rubber plasters, gel plasters) to the surface after application.
Shandong Quankeruida Instrument and Equipment***qktesterAs a manufacturer of testing instruments for pharmaceutical packaging materials and pharmaceutical patches, we will introduce the principles, parameters and instruments of 180-degree peel strength testing of plasters and patches.
1. 180-degree peeling strength of plasters and patches (rubber plaster, gel plaster).
The adhesion determination method refers to the Chinese Pharmacopoeia, which includes four indicators: initial adhesion, adhesion, peel strength and adhesion, which are used to evaluate the adhesion of plasters and patches. Among them, peel strength is one of the core indicators to characterize the peel resistance of plaster, paste and ** of patch.
2. Plasters and patches need to be used for peel strength testingInstruments
It can be selected according to the table on page 143 of Part IV of the Pharmacopoeia (2020 Edition).Peel strength testing machineGenerally, it includes electronic peel testing machines or intelligent electronic tensile testing machines, which carry out peel strength testing (180-degree peel test) for pharmaceutical patches and plasters
Peel Strength Tester - Electronic Peel Tester (Model: Quankeruida DBL-01)).
Peel Strength Tester--Quankeruida 6 models, intelligent electronic tensile testing machine.
3. Pharmacopoeia pairsPeel strength testing machineThe basic requirements.
The pharmacopoeia standard requires that the range of 15-85% of the range of the force sensor can cover the peeling force value of the test sample, and the accuracy is not less than 1 grade (our instruments are higher than the requirements, up to 0.).5. Higher accuracy), the test speed should cover 300mm min, and the size of the test board is 50 * 125 mm long.
The above is the requirements, items, parameters, and instrument information of the 180-degree peel strength test of plasters and patches standardized by the pharmacopoeia.
Manuscript**: Shandong Quankeruida Instrument and Equipment***