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Phenolic paper information


The back of two circuit boards. The brown one is an FR-2 made of paper phenol.

Phenolic paper is a material often used to make printed circuit board substrates (the flat board to which the components and traces are attached). It is a very tough board made of wood fibre and phenolic polymers. It is most commonly brown in colour, and is a fibre reinforced plastic. These PCB materials are known as FR-1 and FR-2 – FR-2 is rated to 130 °C, FR-1 is rated to 105 °C.[1]

  1. ^ Effects Building Techniques Version 1.2, By R.G. Keen, 1999, Website about amateur electronics prototyping

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Phenolic paper

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Phenolic paper is a material often used to make printed circuit board substrates (the flat board to which the components and traces are attached). It is...

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Phenolic

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solid and aromatic compound Phenols, a class of chemical compounds that include phenol Phenolic content in wine Phenolic paper, a type of cardboard used...

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Phenol formaldehyde resin

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Phenol formaldehyde resins (PF) (phenolic resins or phenoplasts) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde...

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Phenolic acid

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Phenolic acids or phenolcarboxylic acids are phenolic compounds and types of aromatic acid compounds. Included in that class are substances containing...

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Phenol

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Phenol (also known as carbolic acid, phenolic acid, or benzenol) is an aromatic organic compound with the molecular formula C6H5OH. It is a white crystalline...

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Paper composite panels

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Paper composite panels are a phenolic resin/cellulose composite material made from partially recycled paper and phenolic resin. Multiple layers of paper...

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Bakelite

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the creation of phenolic sheet materials. A phenolic sheet is a hard, dense material made by applying heat and pressure to layers of paper or glass cloth...

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Boomerang

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sport may be made from plywood or plastics such as ABS, polypropylene, phenolic paper, or carbon fibre-reinforced plastics. Boomerangs come in many shapes...

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Printed circuit board

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soldering. Often encountered materials: FR-2, phenolic paper or phenolic cotton paper, paper impregnated with a phenol formaldehyde resin. Common in consumer...

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Micarta

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at least as early as 1910 using phenolic resins invented by Leo Baekeland. These resins were used to impregnate paper and cotton fabric which were cured...

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Polyphenol

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one phenolic unit and deprived of nitrogen-based functions.[citation needed] Ellagic acid, a molecule at the core of naturally occurring phenolic compounds...

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Thermal paper

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Thermal paper (often supplied in roll form, and sometimes referred to as an audit roll) is a special fine paper that is coated with a material formulated...

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Paper recycling

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recycling of paper is the process by which waste paper is turned into new paper products. It has a number of important benefits: It saves waste paper from occupying...

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Wire spring relay

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armature. The moving contacts are held away from the fixed contacts by a phenolic paper pattern called a "card". By changing the depth of the cuts on this form...

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Carbonless copy paper

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Carbonless copy paper (CCP), non-carbon copy paper, or NCR paper (No Carbon Required, taken from the initials of its creator, National Cash Register) is...

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Luprops tristis

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harmless to humans, when squeezed or picked up, they produce a defensive phenolic secretion that causes skin burns. Luprops beetles have a notorious reputation...

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Environmental effects of paper

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respectively. EPA added numeric effluent limitations for 12 chlorinated phenolic pollutants and adsorbable organic halides (AOX). The regulation also requires...

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Lignin

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laccases. Lignin peroxidases oxidize non-phenolic lignin, whereas manganese peroxidases only oxidize the phenolic structures. Dye-decolorizing peroxidases...

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Trespa

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and interior surfaces. It is composed of woodbased fibres or Kraft paper with phenolic resin applied. The company was founded by Hermann Krages (1909-1992)...

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Malolactic fermentation

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comes from degradation of glycerol into acrolein which then reacts with phenolic compounds in the wine to produce a bitter-tasting compound. One species...

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Bisphenol A

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BPA is produced on an industrial scale by the condensation reaction of phenol and acetone. Global production in 2022 was estimated to be in the region...

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B3

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domain, a highly conserved plant DNA-binding domain Procyanidin B3, a plant phenolic compound ATC code B03 Antianemic preparations, a subgroup of the Anatomical...

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Tannin

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discovery in 1943 by Martin and Synge of paper chromatography provided for the first time the means of surveying the phenolic constituents of plants and for their...

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Bleaching of wood pulp

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radicals or very electron-rich substrates such as deprotonated lignin phenolic groups. The production of these phenoxide groups requires that delignification...

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Countertop

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depending on their usage. The most common and durable type of material used is phenolic resin because they are lightweight, strong, chemical and moisture resistant...

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