What is the difference between the new material and the old material extruded board?What is the difference between the new material and the old material extruded board?
At present, there are two types of extruded boards on the market, one is a raw material extruded board made with new raw materials, and the other is a used plastic extruded board made from waste plastics, which will be described below You explain the difference between the extruded board of new raw materials and the extruded board of old raw materials.
Because the price of raw material extruded board is very high and the production equipment for manufacturing extruded extruded board is very expensive, most of the extruded boards used in the construction in the mainland are cheaper extruded plastic extruded board, and the extruded plastic extruded board There are two fatal flaws in the plastic board. These two fatal flaws will definitely bring hidden fire hazards to the construction.
First of all, the production process of extruded plastic extruded panels is to heat the raw materials and extruded them. Therefore, the very important additive flame retardant in the thermal insulation board is easy to volatilize during the processing and is not suitable for preservation. Some manufacturers are frugal The cost does not even increase the flame retardant. As a result, this kind of insulation board can be easily extinguished to stimulate the fire alarm.
Secondly, because the physical function of the extruded plastic board for recycling the takeover material is very poor, after two years of application, it will appear that the extruded plastic board is outwardly warped, which is the so-called edge curling phenomenon. The flammable insulation board is exposed outside the building. At this time, once an open fire is extinguished, the insulation board will extinguish and stretch to form a fire alarm.
Again, the recycling of the extruded plastics due to the repeated recycling of raw materials, resulting in poor board luster, so most manufacturers use the method of adding pigments to change the board into another color, the goal is to disguise the nature of the recycling of the material This kind of board is generally large in breath, pungent and unpleasant, and harmless to the human body; while the raw material board is red in nature, with an average luster and no breath, so the use of raw material extruded plastic board is more environmentally friendly and healthier.
It stands to reason that all construction materials must be supervised and inspected before construction, but the current quality inspection in China is the inspection method, that is to say, the quality inspection part only checks the product of the product sent by the merchant for inspection. Whether the product is submitted for inspection is not monitored.If you want to know more about it please do not hesitate to contact me. WhatsApp:+86-15966835076.