Wood powder surface coating modification and plastic wood composite technology

Plastic-wood composites are new environmentally friendly materials that have been produced by mixing and processing waste wood fiber resources and waste plastic resources. The material's characteristics combine the advantages of wood and plastic, and replace wood, steel and resin in industrial packaging, outdoor landscape beautification, chemical marine anti-corrosion, etc., with unique and extensive use. The research and development of this technology is of great significance for the material utilization of waste resources, the deep processing of agricultural and sideline products, and the provision of cheap and good materials for industry and life. This technology will also become an important part of the whole circular economy.

At present, the existing plastic-wood composite material preparation technology mainly has the following problems: (1) The melt extrusion system has large viscosity, poor process, high energy consumption, and it is difficult to form a smooth surface; (2) Mechanics of existing plastic-wood composite materials Performance, heat resistance, weather resistance, etc. need to be improved; (3) common plastic blending equipment is difficult to meet the requirements of high quality plastic wood products.

In response to these problems, Tsinghua University and the company formed a joint research team, conducted in-depth and systematic research, and developed a series of plastic-wood composite material production equipment and wood powder coating and extrusion technology.

The main feature of the technology is that the wood powder is coated with talc powder, and then processed into a plastic-wood composite material together with the waste plastic through a special plastic wood processing equipment. (1) Coating the surface of the fiber with ultrafine talc can reduce the internal resistance of the composite extrusion process, and improve the processing technology and improve the material performance. (2) Due to the addition of talc, the viscosity and energy consumption are reduced, and the mechanical and weather resistance and heat resistance of the material are improved. (3) The special profile extrusion die designed by computer-aided plastic mold analysis software can effectively improve the mechanical properties, dimensional accuracy and production efficiency of the product during the molding process. (4) The series of equipments are reasonable in design, compact in structure and simple in operation. The production process is controlled by computer. The degree of automation is high, pollution-free, low noise, high output per unit, and the extrusion speed reaches the international advanced level of similar products. The talc coated wood powder technology belongs to the original invention, and the processing system is at an advanced level in the same technology at home and abroad.

At present, 4 companies have adopted this technology. Through continuous improvement of technology, it will have a wide range of application targets and broad market prospects.

Main Specifications

Mechanical performance unit performance index

Flexural modulus of elasticity GPa 3.6-4.2

Bending fracture strength MPa 48.8-52.6

Elongation at break % 3.6-4.2

Compressive modulus of elasticity GPa 1.2-1.8

Compressive strength MPa 30.0-40.0

Unnotched impact strength J/m 163.9-179.5

Linear thermal expansion coefficient Mm/mm/°C 3.5×10-5

Measuring Spoon Set

High quality Measuring Spoon Set ,suitable for kitchen ,and useful for cooking and baking ,different capacity can help you cook more delicious food. Some of our measuring spoon set with the silicone handle ,which it more comfortable when use it.

Measuring spoon set can combine the cup set or the Mixing Bowl Set to sell. Useful for baking or cooking.

Welcome to provide your requirement and ask for more details.

 

Description of Measuring Spoon Set

 

Material:SS201/SS304

Handle :some items can add silicone handle

Finishing: Satin polishing ,Mirror Polishing ,Color painting

Logo: Laser logo, Etching logo, Silk printing logo, Embossed logo, Decal logo

MOQ : 2000 PCS

Packaging : White box, Mail box or Customized package

Sample Time : 7~10 days

Lead Time :60 days after have the deposit

Payment: T/T ,L/C or others

Payment term: 30% deposit before production and 70 % balance against the copy B/L

 

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FAQ:

 

1:How can I get the sample?

We can provide the sample for customers to check the quality.

Please kindly provide the delivery info for calculate the sample cost. If you have DHL /TNT/UPS/FEDEX account, please also kindly provide it to us.

You can do the payment of sample via T/T and PayPal.

2:How about the sample time?

Usually the sample time is 7~10 days after have the sample cost.

 

3:How long will it take for mass production?

Usually 45~60 days after have the deposit.

 

4:Can we have our logo or company name to be printed on your products or the package?

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Measuring Spoon

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