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Explicación de términos comunes para materiales de troquelado: VHB, PSA, cinta de doble cara sin sustrato

xinstMar 30, 2020

Explicación de términos comunes para materiales de troquelado: VHB, PSA, cinta de doble cara Cinta de Cinta de espuma acrílica de alta resistencia, VHB, fuerza adhesiva fuertesin sustrato

1. ¿Qué es la cinta de espuma VHB?

VHB (VeryHighBond) -Cinta de espuma superadhesiva de doble cara

VHB is the abbreviation of "Very High Bond" in English. Its Chinese translation is: "Very high strength bonding".

VHB is a 3M double-sided polyacrylate foam tape produced by a unique solvent-free manufacturing technology. The foam core material and the surface adhesive are all made of polyacrylate viscoelastic body, not on both sides of the foam core Coating adhesive, which is the biggest difference between VHB products and common foam tapes, can be called "solid glue". This special structure gives the tape a special overall viscoelasticity. The entire tape can effectively dissipate the stress inside the bonding joint through the mechanical relaxation of the tape, thereby effectively protecting the bonding line. The foam core of the VHB tape is a 100% fully closed cell structure, and neither water nor air can pass through.

2.What is PSA?

PSA (PressureSensitiveAdhesive)

Definición: Viscoelasticidad natural, viscosidad rápida y duradera. La pegajosidad ocurre cuando se aplica presión con la mano o el dedo. No necesita agua, solvente o calor para reaccionar con él y obtener su viscosidad. Tiene un poder de sujeción considerable (cohesión)) Tiene suficiente cohesión y elasticidad.


3. ¿Qué es una cinta de doble cara sin sustrato?

The substrate-free double-sided adhesive is directly coated and coated with acrylic acid. The color of the tape is transparent. The common thickness specification is 0.06-0.13MM. It has excellent adhesion effect, can prevent falling off and excellent waterproof performance. Processing Good performance, good temperature resistance, good dimensional stability, thermal stability, good chemical stability, good initial viscosity and holding viscosity; suitable for a wider temperature range and harsh environment; long-term temperature resistance 80-95 ℃, short-term resistance The temperature can reach 180-205 ℃;

Main models: 3M467, 3M468, 3M9731, 3M9473, 3M9460, 3M966, Nitto 5915, Nitto 5919ML, etc .;

Product application: used for pasting panels, pasting shock-proof foam, door and window sealing strips (EPDM), metal and plastic pasting, etc.

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