Quoting from [YH furniture]:
Particle board is the similar with the MDF which also the material for the furniture. Just it's density poor than MDF.
By the way, the "MD" in "MDF" part stands for "medium density". As you are in the furniture business, do you know if there is also a "HD" (high density) version? Never seen that.
May I ...allow me
As Been told by Adimex, Germex, YH furni,
Particle Board is another Industrial wooden Board, made by :
Wooden-chips, wooden grain , wooden tissue of planner scraps
(
* correction = not saw dust )
It been pressed and blended with adhesive paste but as the chips, shreded, tissues
and grains are rough and not same metrics, it would spare the space / big pores in it
if you cut it / saw it you can see that the edge surface is many pores /wholes ...
this particle board categorize as soft board most of it made in thickness of 15 -18 - 20 mm
thinner or less than this will not effective ( too soft ) .
refer to veneer laminate at surface, it is optional : can be by Textured wood veneer,
synthetic vinyl, tacon sheet, duropal sheet, harflex , plywood, even Wall paper vinyl from
PE, PVC, etc with printing of wood line on it as if wooden veneer ones.
While Medium Density Fiber , made from wooden Pulp.and saw and sanding dust,
blended with adhesive and heavy press ( Vacuum air press, hydraulic ) to get a really
massive and compact one to perform a medium density board. merely no pores & grain.
that is why it can made in thickness start from 5 mm , 6 mm, 8 mm, 10 mm, 12 mm, 15 mm
18 mm , 20 mm, 25 mm, 28 mm to meet the need.
the good MDF will not piling out and swelling when it been drip into water a whole night.
the hints is the Glue/adhesive quality.
Whilst the High density (hard Board) is made by very soft dust /powder, aprox 350-450 mecs
and be screened into a mild pulp, then vacuum press it with a hi-Q adhesive.
It ever been used in 1970's as the TV case and or partition/divider for house built. either
in One face or 2 face fine sanded ( 600 mecs) avialable in 2 mm up to 5 mm thickness.
Others boards to knows : Plywood, Multiplex, Block board, with various Veneer on it.