What is Wood-Plastic Composite

Wood-plastic composite (WPC) is a new type of composite material that has rapidly developed in recent years both domestically and internationally. It refers to a novel wood-like material produced by replacing conventional resin adhesives with polyethylene, polypropylene, polyvinyl chloride, etc., and mixing them with over 35%-70% waste plant fibers such as wood flour, rice husks, and straw. This mixture is then processed through plastic manufacturing techniques like extrusion, molding, and injection molding to create boards or profiles. It is primarily used in industries such as construction materials, furniture, and logistics packaging. Boards formed by thermally extruding a mixture of plastic and wood powder in a specific ratio are referred to as extruded wood-plastic composite boards.

What is the Density of Wood-Plastic Composite

The density of wood-plastic composite ranges from 0.6 to 1.4, and the density can be adjusted during the manufacturing process.

How to Measure the Density of Wood-Plastic Composite

The density and specific gravity of wood-plastic composite are determined according to the GBT35463-2017 standard method for measuring the bulk density of wood-plastic composite materials and products. The measurement principle involves weighing the sample in air using an analytical balance, then completely immersing the sample in water and weighing its mass in water. When the sample is fully immersed, its mass in water is less than its mass in air; the reduction in mass equals the mass of the water displaced by the sample, and the volume of water displaced equals the volume of the sample. The density of the sample is the ratio of its mass in air to its volume. With technological advancements, the traditional method of weighing and calculation using balances has been replaced by electronic density meters that utilize modern microelectronic technology. The new fully automatic electronic density meter from Xinxiongfa is easy to operate, requires no manual calculation, and can quickly and directly read density values.

Technical Parameters

Product Name: Wood-Plastic Composite Density Meter

Model: MDJ-300S

Weighing Accuracy: 0.005g

Density Resolution: 0.001g/cm3

Weighing Range: 0.005-300g

Measurement Range: 0.001—99.999g/cm3

Measurable Materials: Rubber products, plastic products, metal products, plastic pellets, floats, foams, pipes, boards, wood, rocks, ceramics, and other similar solid materials.

Precautions

The density and specific gravity of wood-plastic composite are less than 1. When using the volumetric method for specific gravity measurement with water as the medium, the wood-plastic composite will float on the water surface. In such cases, an anti-floating架 is used. For measuring顆粒, a stainless steel mesh basket is employed to achieve simple and rapid measurement.

Application Range of Wood-Plastic Composite Density Meter

Wood-plastic composite, abbreviated as WPC, is commonly used in fields such as building materials, outdoor facilities, logistics and transportation,交通 facilities, and household items. The WPC density meter can not only be used to檢測(cè) the density and specific gravity of wood-plastic composite materials and boards but also to determine the density of plastic pellets like PE, PVC, PP, PS, EVA, rubber pellets, ceramic green bodies, wood-plastic products, plastic-wood alloys, and PE composite materials.

Prospects of Wood-Plastic Composite

China's natural wood resources are increasingly scarce, while the market demand for wood products continues to grow. The huge market demand and technological breakthroughs will inevitably expand the market for wood-plastic materials. From the perspective of market demand, wood-plastic composites such as PE WPC, PC WPC, PVC WPC, PP WPC, PS WPC, and EVA WPC are likely to see規(guī)模化 expansion in areas like building materials, outdoor facilities, logistics and transportation,交通 facilities, and household items.