The invention provides a process for producing a low-density high-pressure
polyethylene unicellular
plastic foam board and relates to the technical field of concrete road and bridge building. The low-density high-pressure
polyethylene unicellular
plastic foam board is manufactured of the following materials according to a certain proportion by mixing, laminating, mould pressing and foaming: plastic granules, an AC or H
foaming agent, a
stearic acid promoting agent or a
lubricant,
zinc carbonate or a
zinc oxide accelerant, a
dicumyl peroxide DCP crosslinking agent, carbamide,a
lead sulfate tribasic stabilizer, an
antioxidant and
carbon black. The process solves the long-term technical problem to be solved. The
low density high pressure polyethylene unicellular
plastic foam board has the advantages of
low density, high
recovery ratio, independent bubble structure, low water absorbing capacity of surface, good anti-penetrating quality,
corrosion resistance to acid, alkali, salt, oil, etc., excellent
ageing-resistant performance, no flow at the high temperature, no
embrittlement cracking at the low temperature, high
recovery ratio, long service life, easy construction, material conservation, light weight, good manufacturability, no
toxicity or
pollution, and broad application range.