Plate building material

Abstract

The present invention discloses a plate building material, which comprises a plurality of strip fiber units, a filler and a coupling agent. The plurality of strip fiber units includes a plurality of crude chaffs. The fiber axes of the chaffs are randomly oriented. A plurality of gaps exists among the chaffs. The filler fills the gaps dispersed among the chaffs and bonds the strip fiber units to form a plate structure. The coupling agent is distributed on the interfaces between the strip fiber units and the filler to enhance the bonding between the strip fiber units and the filler. The plate building material of the present invention has the advantages: preserving chaff fiber to enhance strength; easiness to acquire chaffs; reducing consumption of wood and plastic; being environment-friendly, durable and economic.

What is claimed is: 
     
         1 . A plate building material comprising
 a plurality of strip fiber units made of a plurality of crude chaffs, wherein axes of fibers of said chaffs are randomly oriented, and wherein a plurality of gaps exists among said chaffs and is distributed dispersively;   a filler filling said gaps dispersively distributed among said chaffs and bonding said strip fiber units to form a plate structure; and   a coupling agent distributed on interfaces between said strip fiber units and said filler to enhance bonding between said strip fiber units and said filler.   
     
     
         2 . The plate building material according to  claim 1 , wherein said chaffs are rice husks, wheat husks, or mixtures of said rice husks and said wheat husks. 
     
     
         3 . The plate building material according to  claim 1 , wherein said filler includes at least one selected from a group consisting of nylon, PP (polypropene), PE (polyethene), PVC (polyvinylchloride), PET (polyethylene terephthalate) and recycled and regenerated materials thereof. 
     
     
         4 . The plate building material according to  claim 1 , wherein said coupling agent is selected from a group consisting of maleic anhydride grafted polyolefins, titanate coupling agents, and silane coupling agents. 
     
     
         5 . The plate building material according to  claim 1  further comprising a stabilizer distributed in said filler to inhibit or decelerate deterioration or denaturation of said plate building material, which occurs during fabrication or processing, or occurs in finished products. 
     
     
         6 . The plate building material according to  claim 4 , wherein said stabilizer includes at least one of heat stabilizers, light stabilizers, antioxidants, and anti-scorching agents. 
     
     
         7 . The plate building material according to  claim 1 , wherein said chaffs are in a broken state or a crushed state. 
     
     
         8 . The plate building material according to  claim 1  further comprising at least one type of natural fiber units and artificial fiber units, wherein said filler and at least one type of said natural fiber units and said artificial fiber units fill said gaps distributed among said chaffs; said filler bonds said strip fiber units and at least one type of said natural fiber units and said artificial fiber units to form a plate structure. 
     
     
         9 . The plate building material according to  claim 8 , wherein said natural fiber units include at least one of rice straws, wooden materials, coconut shells, corn stalks, corn leaves, corn cobs, wheat husks, wheat stems, sugarcane bagasse, bamboo and combinations thereof. 
     
     
         10 . The plate building material according to  claim 8 , wherein said artificial fiber units include at least one of fabrics, glass fiber, paper, and combinations thereof. 
     
     
         11 . The plate building material according to  claim 8 , wherein said natural fiber units and said artificial fiber units are in a broken state or a crushed state. 
     
     
         12 . The plate building material according to  claim 1  further comprising at least one of flame-retardants, heat dissipating materials, sound absorbing materials, rubber, talcum powder, recycled and regenerated materials, and silica sand. 
     
     
         13 . The plate building material according to  claim 1 , wherein said plate building material has transverse grooves or longitudinal grooves or a combination thereof, and wherein several layers of said plate building materials respectively having said transverse grooves and said longitudinal grooves are arranged alternately and hot-pressed to form interwoven hollow spaces. 
     
     
         14 . The plate building material according to  claim 1 , wherein said plate building material is fabricated into hollow tube structures.