Zhongxi is a complete laboratory for analysis and testing, also an audited contract laboratory.We can provide a wide range of chemical analysis and material testing services to a diverse international customer base.Our expertise and years of experience enable us to choose the right analytical methods and generate the accurate data needed to solve your toughest problems.

Testing items

Testing of thermoplastic resin adhesive

Cellulose ester adhesive, vinyl polymer( PVA, polyvinyl alcohol, perchloroethylene, polyisobutylene, etc.), adhesive, polyester adhesive, polyether adhesive,  polyamide adhesive, polyacrylate adhesive, a- cyanoacrylate adhesive, polyvinyl alcohol acetal adhesive, ethylene-vinyl acetate copolymer adhesive, etc.

Testing of thermosetting resin adhesive

Epoxy resin adhesive, phenolic resin adhesive, urea-formaldehyde resin adhesive, non-formaldehyde resin adhesive, silicone resin adhesive, furan resin adhesive, unsaturated polyester adhesive, acrylic resin adhesive, polyimide adhesive, polybenzimidazole adhesive, phenolic polyvinyl acetal adhesive, phenolic-polyamide adhesive, phenolic-epoxy adhesive, epoxy-polyamide adhesive, etc.

Testing of synthetic rubber adhesive

Chloroprene rubber adhesive, styrene-butadiene rubber adhesive, butyl rubber adhesive, butadiene sodium rubber adhesive, Isoprene rubber adhesive, polysulfide rubber adhesive, polyurethane rubber adhesive, chlorosulfonated polyethylene elastomer adhesive, silicone rubber adhesive, etc.

Testing of adhesive raw material

Synthetic resin emulsion, unsaturated resin, curing agent, crosslinker, initiator, photoinitiator, catalyst, accelerators, tougheners, adhesives,  Solvents such as plasticizers, thickeners, diluents, coupling agents, emulsifiers, reinforcements, fillers, flame retardants, polymerization inhibitor, oxidant, softener, dispersant, foaming agent,Antioxidant(PAN,6PPD), defoamer, fungicides, preservatives, colorants etc.

Experiment flow

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Testing items

Physical properties: Detection of permeability, moisture permeability, density, adhesion strength, surface roughness, refractive index and transmittance, mooney viscosity, creep, swelling, stress relaxation, resilience, etc.

Mechanical properties: testing hardness, tensile properties, tear properties, compression properties, bending properties, impact properties, friction properties, fatigue resistance, friction coefficient, wear properties, Gehman test, dynamic stiffness, static stiffness, etc.

Combustion performance: detection of vertical combustion, horizontal combustion, smoke density, oxygen index, melting point, Vicat softening, fire resistance grade, etc.

Thermal performance test: thermal stability, fluidity, glass transition temperature, embrittlement temperature, loss of strength temperature, thermal conductivity, specific heat capacity, etc.

Electrical properties: detection of surface resistance, breakdown voltage, volume resistivity, dielectric loss, electrostatic properties, dielectric strength, etc.

Aging performance: xenon lamp aging, uv aging, hot air aging, ozone aging, salt spray aging, carbon arc lamp aging, life reckoning, etc.

Environmental performance: heavy metals, ROHS/REACH,pahs, testing of VOC , etc.

Reliable performance: oil resistance and liquid resistance, salt spray test, temperature shock, constant temperature and humidity, high and low temperature shock, fog test, vibration test, mechanical impact test, collision test, package drop, compressive strength, dust prevention, waterproof, stacking test, temperature / humidity / vibration three comprehensive test, rapid temperature change, etc.

Anti-mildew antibacterial: antibacterial properties, anti-mildew properties, etc.

Component analysis: component analysis, formula analysis, component analysis of  unknown object, etc.

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