scholarly journals In situ polymerized wood polymer composite: effect of additives and nanoclay on the thermal, mechanical properties

2013 ◽  
Vol 16 (4) ◽  
pp. 954-963 ◽  
Author(s):  
Rashmi R Devi ◽  
Tarun K Maji
Keyword(s):  
Mechanical Properties ◽  
Polymer Composite ◽  
Composite Effect ◽  
Effect Of Additives ◽  
Wood Polymer ◽  
Thermal Mechanical Properties ◽  
Wood Polymer Composite

Performance of Wood-Polymer Composite Prepared by In Situ Synthesis of Terpolymer within Wood

2010 ◽  
Vol 34-35 ◽  
pp. 1165-1169 ◽  
Author(s):  
Yong Feng Li ◽  
Bao Gang Wang ◽  
Qi Liang Fu ◽  
Yi Xing Liu ◽  
Xiao Ying Dong
Keyword(s):  
Mechanical Properties ◽  
Porous Structure ◽  
Polymer Composite ◽  
Value Added ◽  
Untreated Wood ◽  
Modulus Of Rupture ◽  
Hydroxyl Group ◽  
Wood Polymer ◽  
Wood Polymer Composite

In order to improve the value-added applications of low-quality wood, a novel composite, wood-polymer composite, was fabricated by in-situ terpolymerization of MMA, VAc and St within wood porous structure. The structure of the composite and the reaction of monomers within wood were both analyzed by SEM and FTIR, and the mechanical properties were also evaluated. The SEM observation showed that the polymer mainly filled up wood pores, suggesting good polymerizating crafts. The FTIR results indicated that under the employed crafts, three monomers terpolymerized in wood porous structure, and grafted onto wood matrix through reaction of ester group from monomers and hydroxyl group from wood components, suggesting chemical combination between the two phases. The mechanical properties of the wood-polymer composite involving modulus of rupture, compressive strength, wearability and hardness were improved 69%, 68%, 36% and 210% over those of untreated wood, respectively. Such method seems to be an effective way to converting low-quality wood to high-quality wood.

Mechanical Properties of Wood-Polymer Composite Prepared by In-Situ Polymerization of Methyl Methacryalte and Styrene

2012 ◽  
Vol 166-169 ◽  
pp. 2938-2941 ◽  
Author(s):  
Yong Feng Li ◽  
Ding Wang Gong ◽  
Xiao Ying Dong ◽  
Zhen Bo Liu
Keyword(s):  
Mechanical Properties ◽  
Polymer Composite ◽  
In Situ Polymerization ◽  
Untreated Wood ◽  
Modulus Of Rupture ◽  
Test Results ◽  
Wood Polymer ◽  
Wood Based Composite ◽  
Wood Polymer Composite

Fast-growing poplar wood, Populus ussuriensis Kom, was used to prepare novel wood-polymer composite by the in-situ polymerization of methyl methacrylate (MMA) and styrene (St). SEM observation and FTIR analysis indicated that the resulted polymer well filled up wood cell lumen and physically reinforce wood matrix. The test results also proved that the mechanical properties of wood including modulus of rupture, modulus of elasticity, compression strength and hardness of were improved by 68.28%, 110.27%, 62.43%, 357% over those of Untreated Wood, respectively. Such wood-based composite could be potentially used as reinforced material in construction fields.

Performance of Wood-Polymer Composite Prepared by In Situ Polymerization of Styrene

2010 ◽  
Vol 26-28 ◽  
pp. 181-185 ◽  
Author(s):  
Yong Feng Li ◽  
Xin Meng ◽  
Jian Li ◽  
Yi Xing Liu
Keyword(s):  
Mechanical Properties ◽  
Polymer Composite ◽  
Untreated Wood ◽  
Decay Resistance ◽  
Modulus Of Rupture ◽  
Interior Decoration ◽  
Wood Polymer ◽  
New Material ◽  
Wood Polymer Composite

A new material was prepared by formation of polystyrene in situ wood porous structure from styrene monomer through thermal-catalyst treatment. And the performance of such wood-polymer composite, containing mechanical properties and durability, was also tested. The SEM results showed that polymer was generated inside wood, and filled in wood cellular structure. The mechanical properties of such wood-polystyrene composite including modulus of rupture (MOR), modulus of elasticity (MOE), compression strength and hardness, were respectively improved 38%, 77%, 21% and 97% over untreated wood. And the durability of the novel composite involving dimensional stability, decay resistance and stability against weather erosion were remarkably improved than those of untreated wood. Such composite can be widely used in fields of construction, traffic and interior decoration, which greatly enhanced the utilization of low-valued wood material instead of high-quality wood.

Wood-Polymer Composite Prepared by In Situ Synthesis of Copolymer within Wood and its Dimensional Stability

2010 ◽  
Vol 150-151 ◽  
pp. 1-5
Author(s):  
Yong Feng Li ◽  
Chi Jiang ◽  
Duo Jun Lv ◽  
Xiao Ying Dong ◽  
Yi Xing Liu
Keyword(s):  
Contact Angle ◽  
Porous Structure ◽  
Polymer Composite ◽  
Dimensional Stability ◽  
Value Added ◽  
Hydroxyl Groups ◽  
Wood Polymer ◽  
Volume Swelling ◽  
Wood Polymer Composite

In order to improve the value-added applications of low-quality wood, a novel Wood-Polymer Composite was fabricated by in-situ synthesis of copolymer from monomers within wood porous structure. The structure was characterized with SEM and FTIR, and its dimensional stability was also tested. The SEM observations showed that copolymer filled up wood pores and contact tightly with wood matrix, indicating strong interactions between them. FTIR analysis indicated that when the monomers copolymerized in situ wood porous structure, they also reacted with wood matrix by reaction of hydroxyl groups and ester groups, indicating chemical bond between the two phases, which is agreement with SEM observations. The volume swelling efficiency and contact angle of such composite were higher than those of wood, respectively, indicating good dimensional stability involving volume swelling efficiency and contact angle. Such composite could be potentially applied in fields of construction, traffic and indoor decoration.

Wood-Polymer Composite Fabricated by Polymerization of Monomers within Wood Porous Structure

2012 ◽  
Vol 549 ◽  
pp. 699-702
Author(s):  
Xiao Ying Dong ◽  
Ding Wang Gong ◽  
Zhen Bo Liu ◽  
Yi Xing Liu
Keyword(s):  
Porous Structure ◽  
Polymer Composite ◽  
Glycidyl Methacrylate ◽  
Solid Polymer ◽  
Ftir Analysis ◽  
Functional Monomers ◽  
Wood Polymer ◽  
Composite Wood ◽  
Wood Polymer Composite

A novel composite, wood-polymer composite, was fabricated by polymerization of functional monomers within wood porous structure. The wood was a fast-growing plant wood, Micheliamacclurel wood, which was rarely reported in previous studies, and two functional monomers, glycidyl methacrylate and ethylene glycol dimethacrylate, were novelly employed. The monomers, added with a few Azo-bis-isobutryonitrile as initiator, and maleic anhydride as catalyst, were first impregnated into wood pores under vacuum/pressure conditions, and then in-situ polymerized into polymers through a catalyst-thermal treatment. After the processes, wood-polymer composite was resulted. SEM and FTIR analysis for the composite indicated that the monomers polymerized into solid polymer, which fully filled up wood pores, and the resulted polymer grafted onto wood matrix, resulting in good interface combination between polymer and wood matrix. Such composite with satisfactory interface can be potentially applied as structural material in construction field.

Structural Characterization of Wood-Polymer Composite Prepared by In Situ Polymerization of Styrene

2011 ◽  
Vol 675-677 ◽  
pp. 491-494
Author(s):  
Yong Feng Li ◽  
Yi Xing Liu ◽  
Xiu Rong Li ◽  
Jian Li ◽  
Xiang Ming Wang
Keyword(s):  
Porous Structure ◽  
Polymer Composite ◽  
High Performance ◽  
In Situ Polymerization ◽  
Xrd Analysis ◽  
Vinyl Monomer ◽  
Environmental Characteristic ◽  
Wood Polymer ◽  
Wood Polymer Composite

A novel biomass composite, wood-polymer composite with potential good mechanical properties, durability and environmental characteristic capable of applying in fields of construction and traffic as structural material, was prepared by generating high-performance polymer from in situ polymerization of styrene in wood porous structure. The vinyl monomer, styrene, combing with 1wt% AIBN as an initiation, was first impregnated into wood porous structure under a vacuum/pressure condition, and then in situ polymerized through a thermal treatment. The structure of the resultant composite was characterized by SEM, FTIR and XRD. Results show that styrene polymerized into polystyrene through free radical polymerization, and the resultant polymer fully filled in wood porous structure in a column form, partly contacting wood matrix. FTIR analysis indicates that polystyrene generated into wood pores, indicating weak interaction between them. XRD analysis suggests that the polystyrene generated into wood pores mainly existed in an amorphous form.

Sign in / Sign up

Export Citation Format

Share Document