An article takes you to understand structural adhesives!

Structural adhesives are also called two-component structural adhesives, AB structural adhesives, epoxy structural adhesives, acrylic structural adhesives, and polyurethane structural adhesives. Structural glue refers to high strength, can withstand large loads, high strength, stable performance in the expected life, with aging resistance, fatigue resistance, corrosion resistance, insulation resistance, moisture resistance, dust resistance, mildew resistance, shock resistance, leakage resistance, and electricity resistance It has excellent environmental protection properties such as halo, salt spray, acid and alkali resistance, vulcanization resistance, high and low temperature impact resistance, high humidity and high temperature resistance. Used for bonding between metals, ceramics, plastics, rubber, wood, etc. or different materials. It can partially replace traditional connection forms such as welding, riveting, and bolt connection. The stress distribution on the joint surface is uniform, and there is no thermal influence and deformation on the parts. Structural adhesives are divided into three categories: epoxy structural adhesives, acrylic structural adhesives, and polyurethane structural adhesives.

Epoxy structural adhesive is a solvent-free, liquid two-component epoxy resin adhesive, which can be cured at room temperature or heating. After curing, the adhesive layer is medium to hard, so it can withstand strong impact and vibration. The adhesive layer has good mechanical properties, good electrical insulation, and can withstand temperature changes and flexural tearing stress. It is non-corrosive and has good adhesion to metals, ceramics, vulcanized rubber, glass fiber products, and carbon fiber products. Temperature and oil resistance. The epoxy structural adhesive cures at room temperature without heating or pressure. However, heating can accelerate its curing. No volatile matter is generated during the curing process. Usually in the bonding seam, an adhesive layer with a thickness of about 0.8 mm is sufficient for bonding. When the curing temperature is lower than 15°C, the bonding effect will be very poor. The best bonding effect can be obtained by curing at 25℃~70℃.

Acrylic structural adhesive is a two-component structural adhesive composed of synthetic acrylate and modified curing agent. Both agents A and B are 100% solid content; fast curing, high strength, initial fixation in about 5 minutes, 30 minutes It can reach 80% strength after 24 hours, maximum strength after 24 hours. Excellent resistance to acid, alkali, water and oil media, better high temperature resistance and aging resistance, strong adhesion to metal objects, better impact resistance than epoxy resin, excellent cold and heat resistance, working at -30~ 150°C. Used in bonding steel, iron, lead, titanium, ABS, PVC, nylon, polycarbonate, plexiglass, polyurethane, cement, ceramics, wood, etc. or dissimilar materials; widely used in automobiles and motorcycles , Chemical, machinery, resin handicrafts, Christmas gifts, plastic toys, ceramic art, furniture, iron, stainless steel, wood bonding, can also be used for bonding artificial stone, etc.

Polyurethane structural adhesive refers to an adhesive that can withstand large dynamic loads and static loads and can be used for a long time when used in the bonding of stressed structural parts. In layman's terms, structural adhesives are used instead of bolts, rivets or welding to join metal, plastic, glass: wood and other structural components. They are adhesives that can withstand large loads for a long time and have reliable performance.

Structural adhesive has the following characteristics:
   1. Features of epoxy structural adhesive: extremely high transparency and chemical resistance; high bonding strength after curing, and a certain degree of toughness; excellent epoxy and chemical resistance.
   2. Features of acrylic structural adhesive: fast curing at room temperature, low temperature and controllable curing; suitable for bonding most metal and non-metal materials; solvent-free system, non-corrosive.
   3. The characteristics of polyurethane structural adhesive: strong adhesion, large initial adhesion, and wide application range; outstanding low-temperature resistance; heating can effectively accelerate curing and have gap-filling ability.

Hunan Baxiongdi New Material Co., Ltd., is a Chinese corporation that is engaged in the research, development, manufacturing, marketing and sales of structural adhesives.Its products can be categorized as Structural Adhesives for Building & Construction, Decoration Adhesives, Industrial Adhesives, and Adhesives in Civil Engineering. They develop into seven series such as Epoxy AB Glue, Modified-Acrylic AB Glue, Threadlocker, Gasket Maker, MS Sealant, No More Nails Glue, 502 Super Glue with more than three hundred varieties of products.

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