What are the common substrates for industrial tapes
What are the common substrates for industrial tapes
Blog Article
What are the common substrates for industrial tapes?
What are the properties of different substrates?
Tape Knowledge Class
Adhesive materials include tapes and adhesives. Tapes are composed of two parts: a substrate and an adhesive. With paper, cloth, film, etc. as the substrate, the adhesive (mainly pressure-sensitive adhesive) is evenly coated on various substrates to form a tape and a reel-supplied product. Generally speaking, tapes are composed of three parts: a substrate, an adhesive, and a release paper (film). Adhesive tapes are mainly divided into paper-based adhesive tapes, cloth-based adhesive tapes, film adhesive tapes, foam adhesive tapes, metal foil adhesive tapes, substrate-free adhesive tapes, fiber tapes, etc. according to the substrate.
Tapes have the characteristics of long-lasting high viscosity, reliable adhesion, sufficient cohesion and elasticity, and are widely used as industrial materials. Common tapes are divided into civil tapes and industrial tapes.
Tape base material classification
Generally speaking, tape is composed of two parts: base material and adhesive. It is a multi-layer composition that serves to bond two or more unconnected objects together. According to the definition of tape, we can simply assume that all kinds of materials that can appear in the form of rolls can be used as the base material of tape. At present, the common tape base materials are mainly of the following types:
1. Organic film base material
Organic film refers to a film made of organic polymer. Except for thermosetting materials with high rigidity such as epoxy, phenolic, BT resin, etc., which are not suitable for use as base materials, ordinary thermoplastic materials can basically be used as base materials for tape. Common organic film base materials include PET, PE, PVC, OPP, MOPP, PI, PC, etc., and some less common ones such as PO, UPE, FEP, PTFE, PEVA.
PET: good initial adhesion and lasting adhesion, good high humidity resistance, excellent aging resistance, high shear resistance, and strong tensile strength.
PE: better softness, good adhesion, good stickiness, environmentally friendly and non-toxic
PVC: good softness, good ductility, suitable for uneven surface pasting, heat resistance, moisture resistance, high bonding strength for rough surfaces and non-tough surfaces.
CPP: It has good adhesion, good viscosity stability, high temperature resistance, no residual glue and other characteristics.
OPP: non-toxic and environmentally friendly, good moisture-proof, waterproof, anti-oxidation performance, and high and low temperature resistance. In addition, it also has the characteristics of light weight, high transparency, good toughness, etc.
MOPP: high adhesion, high tensile strength, low elongation, easy to tear horizontally, and no residual glue after removal.
PI: excellent insulation, breakdown voltage resistance, 260 degrees high temperature resistance and other characteristics. The appearance has no scratches, wire drawing and other phenomena, good shearing performance, easy punching die-cutting processing, excellent high temperature resistance and solvent resistance.
PC: PC film has excellent physical and mechanical properties, excellent impact resistance, high tensile strength, bending strength, and compression strength, and has good heat resistance and low temperature resistance.
PO: It has good light transmittance, soft texture, waterproof surface, no small molecule precipitates, and ensures wafer-level cleanliness.
UPE: Ultra-high molecular weight polyvinyl chloride "new UPE" rubber-type material, with easy processing and molding process stability, improves the wear resistance of the product, and highlights the anti-aging, impact resistance, pressure resistance, acid resistance, and corrosion resistance.
FEP: High transparency allows ultraviolet rays to pass through completely, suitable for 3D light-curing printer product release. Low friction coefficient, excellent non-stickiness, high temperature resistance, electrical insulation, and mechanical properties.
PTFE: Teflon, which has high lubricity, excellent insulation, light resistance, antioxidant effect, good surface anti-sticking, wear resistance, chemical resistance, pressure resistance, corrosion resistance, microwave resistance, high temperature resistance, friction resistance, firm adhesion without debonding, uniform texture and other characteristics.
PEVA: It has good tensile and ductility, and its temperature resistance is below 200°C.
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2. Cloth substrate
Cloth substrates can be regarded as secondary processing of organic films. The essence of the material has not changed, but there are changes in form, playing some roles that film substrates do not have. Therefore, it has the characteristics of strong air permeability, strong thermal insulation, good elasticity, lightness and softness. The basis of cloth includes: glass cloth, Teflon fiberglass cloth, non-woven fabric, cotton cloth, acetate cloth, nylon cloth, conductive cloth, etc.
Glass cloth: It has the characteristics of high temperature resistance, high breakdown voltage resistance, strong adhesion, high tensile strength, and good insulation.
Glass fiber cloth: It has high thermal conductivity, high temperature resistance, good adhesion, and good insulation performance.
Cloth base/gauze: It has the characteristics of good tearability, high bonding strength, waterproof and leakproof, good initial adhesion, and high tensile strength.
Teflon fiberglass cloth: It has high lubricity, excellent insulation, light resistance, anti-oxidation effect, good surface anti-sticking, wear resistance, chemical resistance, pressure resistance, corrosion resistance, microwave resistance, high temperature resistance, friction resistance, firm adhesion without degumming, uniform texture, etc.
Non-woven fabric: It has high insulation, high breakdown voltage resistance, good temperature resistance and other characteristics.
Acetate fabric: It has high temperature resistance, solvent resistance, good aging resistance, good insulation, high peeling force, flame retardant and other characteristics.
Conductive fabric: It has good conductivity, excellent shielding effect, good anti-friction performance, good metal bonding, better Z-direction conductivity, good processability, soft texture, no burrs when cut, anti-fingerprint and dirt, anti-oxidation treatment and other characteristics. Report this page