Rubber Band Testing

Applicable materials: Suitable for rubber bands made of various elastic materials such as natural latex, styrene butadiene rubber, chloroprene rubber, silicone rubber, thermoplastic elastomers (TPE/TPR), etc.

Applicable products: including circular rubber bands, flat rubber bands, colored rubber bands, anti slip rubber bands, medical rubber bands, food contact rubber bands, industrial bundling rubber bands, stationery rubber bands, clothing rubber bands and other specifications and models of rubber band products.

Applicable scenarios: Used for raw material incoming inspection, finished product factory acceptance, mechanical performance evaluation, aging life testing, safety and health testing, quality arbitration, and failure analysis; Suitable for quality control and performance evaluation of rubber bands in stationery, packaging, clothing, medical, food, industrial and other fields.

Applicable specifications: covering various types of rubber bands with diameters ranging from 0.5mm to 20mm, lengths ranging from 50mm to 500mm, and cross-sectional shapes of circular/rectangular shapes, as well as product series with different elastic moduli (low modulus, medium high modulus).

Appearance and size inspection: Check the surface smoothness, color uniformity, and whether there are defects such as bubbles, cracks, burrs, impurities, etc; Measure dimensions such as diameter/width, thickness, length, perimeter, etc., evaluate diameter uniformity, edge neatness, and thickness consistency.
Mechanical performance testing: tensile strength (maximum tensile strength before fracture), elongation at break (proportion of tensile deformation), tensile stress (stress value at specific elongation), permanent deformation rate (residual deformation after unloading), resilience (deformation recovery ability), tear strength (resistance to tearing), hardness (Shore A hardness), tensile fatigue life (number of damages under cyclic tension).
Aging performance testing: hot air aging (performance degradation rate at 70 ℃/100 ℃), ozone aging (cracking and performance changes), ultraviolet aging (strength retention rate), high and low temperature resistance (flexibility and functional retention at -40 ℃~120 ℃).
Environmental adaptability testing: water resistance (water absorption expansion rate and performance changes), oil resistance (performance changes after contact with mineral oil/vegetable oil), acid and alkali resistance (corrosion resistance in acidic and alkaline environments), wear resistance (surface wear resistance), low-temperature brittleness (fracture resistance in cold environments).
Safety and hygiene testing: harmful substance content (heavy metals, plasticizers, formaldehyde, polycyclic aromatic hydrocarbons), food contact migration (meeting food grade standards), microbial indicators (total bacterial count, pathogenic bacteria, special testing for medical/food rubber bands), odor (no irritating odor).
Component analysis and testing: element content (sulfur content, percentage of carbon black), additive concentration (residual amount of plasticizers and antioxidants), material identification (infrared spectroscopy analysis).