scholarly journals Impregnation of Natural Rubber into Rubber Wood: A Green Wood Composite

BioResources ◽  
2014 ◽  
Vol 9 (3) ◽  
Author(s):  
Wassa Ruayruay ◽  
Sureurg Khongtong
2007 ◽  
Vol 47 (4) ◽  
pp. 421-428 ◽  
Author(s):  
B. Thongnuanchan ◽  
K. Nokkaew ◽  
A. Kaesaman ◽  
C. Nakason

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2497
Author(s):  
Nussalin Thongcharoen ◽  
Sureurg Khongtong ◽  
Suthon Srivaro ◽  
Supanit Wisadsatorn ◽  
Tanan Chub-uppakarn ◽  
...  

An experimental study was carried out to develop and examine the properties of a new type of structural insulated panel (SIP). SIP prototypes conducted from this research consisted of insulated foam manufactured from natural rubber filled with wood particles as the core layer and three kinds of commercial wood-composite boards (plywood, cement particleboard, and fiber-cement board) as the surface layers. Polyurethane was used as an adhesive bond between the surface and the core layer. This preformed panel was placed into a clamping device and compressed until adhesive curing was achieved. The physical and mechanical properties of the SIP prototypes were consequently evaluated. The test results indicated that the types of surface layer materials played a significant effect on the SIP properties. The SIP covered with cement particleboard and fiber-cement board revealed high mechanical properties and high water resistance. The SIP prototype covered with plywood showed desirable properties (such as low density, high resistance of screw withdrawal, and low thermal transmittance). However, high water absorption and low fire resistance were drawbacks of the SIP covered with plywood. These properties should be improved.


2006 ◽  
Vol 239 (1) ◽  
pp. 192-200 ◽  
Author(s):  
Miren Nekane Ichazo ◽  
Marianela Hernández ◽  
Carmen Albano ◽  
Jeanette González

Author(s):  
P. Sadhukhan ◽  
J. B. Zimmerman

Rubber stocks, specially tires, are composed of natural rubber and synthetic polymers and also of several compounding ingredients, such as carbon black, silica, zinc oxide etc. These are generally mixed and vulcanized with additional curing agents, mainly organic in nature, to achieve certain “designing properties” including wear, traction, rolling resistance and handling of tires. Considerable importance is, therefore, attached both by the manufacturers and their competitors to be able to extract, identify and characterize various types of fillers and pigments. Several analytical procedures have been in use to extract, preferentially, these fillers and pigments and subsequently identify and characterize them under a transmission electron microscope.Rubber stocks and tire sections are subjected to heat under nitrogen atmosphere to 550°C for one hour and then cooled under nitrogen to remove polymers, leaving behind carbon black, silica and zinc oxide and 650°C to eliminate carbon blacks, leaving only silica and zinc oxide.


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