Xylem filber-polyvinyl chloride composite material and method for producing the same

Abstract

The invention relates to a wood fiber-PVC composite material and a preparation method thereof, and relates to the composite material and the preparation method and solves the problem that: the wood fiber-PVC composite material has high combustibility and can produce a plurality of black smoke and noxious gas when in burning. The wood fiber-PVC composite material is mainly formed by weight part asfollow: 100 to 600 parts of PVC resin, 30 to 700 parts of wood fiber material, 3 to 145 parts of expansion flame retardant, 1 to 55 parts of copper oxide, 6 to 75 parts of heat stabilizer, 4 to 60 parts of plasticizer and 4 to 65 parts of compatibilizer. The preparation method is as follows: firstly, the material is mixed in advance; secondly, the material is squeezed out for shaping. The wood fiber-PVC composite material of the invention is tested according to the GB / T8924-2005 standard; the wood fiber-PVC composite material of the invention has an oxygen index bigger than 35 percent, has longignition time and does not produce drop melting, and belongs to nonflammable material. The preparation method for the wood fiber-PVC composite material of the invention is simple and easy for operati on, has low requirement to devices and is convenient for spreading and application.

Description

technical field

[0001] The invention relates to a composite material and a preparation method thereof. Background technique

[0002] Wood fiber-polyvinyl chloride composite material is a new type of composite material formed by adding a large amount of wood fiber, wood powder, bamboo powder, straw powder and other wood fiber materials to polyvinyl chloride (PVC) resin (PVC-based wood-plastic for short). Composite materials), with good processing performance, mechanical properties, price advantage and excellent wood feeling. Due to its low density and higher mechanical strength than wood, PVC-based wood-plastic composite materials can be used instead of wood in packaging, load-bearing and other fields; in addition, the main raw materials for preparation are forestry and agricultural waste, so it is an economical and environmentally friendly material. It has great application potential in the fields of architecture, decoration, furniture and so on.

[0003] Although polyviny...