The details of Wood plastic composite decking boards from Changxing Hanming Technology Co.,LTD

WPC decking is the perfect low maintenance, high durability & lifetime solution for your poolside, walkways or any high traffic outdoor area.

 

Wood plastic composite decking boards are a fantastic high-quality, low cost alternative to standard wooden decking.Wood Plastic Composite – Decking Wood. Available colour: Red & Teak. Size 2200mm x 150mm x 24mm. WPC products have natural appearance, long life.WPC deckingis a new eco-friendly decking for outdoor use. WPC means Wood Plastic Composite. WPC decking is produced from reclaimed plastic and bamboo /Wood.

1.  Made of recycled plastic (HDPE) and wood or bamboo powder, plus non-hazardous chemical additives such as anti-UV agent, light stabilizer, lurbicant, culping agent and etc.

2. Eco friendly to nature

3. Waterproof, fire retardant, UV resistant, Anti-slip, maintenance free, long life span

 

4. Profiles adjustable, lengths adjustable, colors adjustable, surface treatment adjustable

5. Easy intallation and cost efficiency

Wood plastic products than pure plastics or pure wood, etc., the cost is much lower, can be recycled waste plant fiber, wood processing waste wood powder and used recycled plastics, conducive to the full use of the environment and resources, with the advantages of wood and plastics, low density, low cost, water resistance, moth resistance.

The wood powder used for wood plastic is wood powder, bamboo powder, rice husk powder, wheat pole, peanut shell, bagasse and so on. There are resins used for wood plastic PVC,PE,PP, of which PE account for 70%, PVC for 13% and PP for 17%. The rise in oil prices has led to a rise in the prices of oil-based PE,PP, while PVC prices have been stable, giving the plastic wood composites of basic materials a chance to develop. Of course it is not low cost we can ignore these have a great impact on the material and mechanical properties of products, we through the actual production, can be specific analysis.

First of all, we need to know that the main component of wood powder is cellulose lignin hemicellulose, and other organic matter and moisture, in real life have to add resin powder.

 

Mix the PVC wood powder and other plant fiber mixture, mix 5 min, on the 170 double roller plastic mixer to take the sheet, press the sheet, make the sample, the notch impact strength is carried out on the ZBC-25B pendulum impact testing machine according to the GB1843-80 standard; the tensile performance is carried out on the CMT6104 universal electronic testing machine according to the GB/T1040-92 standard. Bending performance is tested according to GB1042-79 standard. the impact splines were cooled with liquid nitrogen, then brittle and broken, and the sections were vacuum-plated and scanned by sem.

 

I. Variables on the influence of moisture in wood flour

Through experiments, we found that when the wood powder is heated, the water is first evaporated, then the easily decomposed part of lignin is decomposed, and the cellulose is further heated to oxidize and decompose, and finally the lignin is decomposed. The mechanical properties of the modified plastics were obviously affected by the presence of residual moisture and volatile matter with low boiling point in the wood powder, so the mechanical properties of the materials were obviously affected. Therefore, wood flour must be filled before Dry.

Wood and bamboo powder in the initial heating, weight reduction value is relatively large, because when heating, bamboo powder moisture volatilization ,1 hour later, bamboo powder reduction value is basically unchanged, in 110,130 wood powder weight loss is mainly water volatilization. At the temperature of 150, bamboo powder in the initial heating, weight reduction value is relatively large, mainly loss of water, but with the heating time, bamboo powder reduction value becomes relatively flat, at this time bamboo powder is mainly lost low boiling point volatile substances. When heating, such as low temperature, short time, wood powder reduction less than 3%, such as high temperature, long heating time, wood powder unlimited reduction, is meaningless and uneconomical. from performance and classics The heating temperature of wood powder is 110 and 130, and the reduction range is 5-10%.

 

II. Effect of resin selection on mechanical properties of products

the high filling of wood powder will affect the plasticizing properties and processing fluidity of the PVC. the type of resin must be selected according to the melt flow rate (MFR) of the resin. under the same processing conditions, the resin MFR is higher, the overall wettability of wood powder is better, and the distribution of wood powder is more uniform.

The smaller the degree of polymerization of PVC, the higher the MFR of resin, we can see through the parameters provided by PVC resin manufacturers, it is not difficult to see that the viscosity of PVCSG-7 or PVCSG-8 is lower and the MFR is higher. Therefore, PVCSG-7 or PVCSG-8 are more suitable for the matrix resin of wood-plastic composites.