scholarly journals Effect of waste rubber powder as filler for plywood application

2015 ◽  
Vol 17 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Huei Ruey Ong ◽  
Maksudur R. Khan ◽  
Abu Yousuf ◽  
Nitthiyah Jeyaratnam ◽  
D.M. Reddy Prasad
Keyword(s):  
Shear Strength ◽  
Chemical Interaction ◽  
Inorganic Compounds ◽  
Urea Formaldehyde ◽  
Chemical Properties ◽  
Formaldehyde Emission ◽  
Wood Adhesive ◽  
Rubber Powder ◽  
Waste Rubber ◽  
Waste Rubber Powder

Abstract The study investigated the suitability of waste rubber powder (WRP) use as filler in adhesive formulation for plywood application. Melamine Urea Formaldehyde (MUF) was employed as resin for formulating the wood adhesive. To improve chemical properties and bonding quality of adhesive, WRP was treated by different chemicals like 20% nitric acid, 30% hydrogen peroxide and acetone solution. The treated WRP were analysed by XRD and it showed that inorganic compounds were removed and carbon was remained as major component under the treatment of 20% HNO3. The treatment improved the mechanical properties like shear strength and formaldehyde emission of plywood (high shear strength and low formaldehyde emission). The physico-chemical interaction between the wood, resin and filler was investigated using fourier transform infrared spectroscopic (FTIR) technique and the interactions among N-H of MUF and C=O of wood and WRP were identified. The morphology of wood-adhesive interface was studied by field emission scanning electron microscope (FESEM) and light microscope (LM). It showed that the penetration of adhesives and fillers through the wood pores was responsible for mechanical interlocking. Therefore, chemically treated WRP proved its potential use as filler in MUF based adhesive for making plywood.

scholarly journals Preparation and Properties of the Urea-Formaldehyde Res-In/Reactive Halloysite Nanocomposites Adhesive with Low-Formaldehyde Emission and Good Water Resistance

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2224
Author(s):  
Jingbiao Song ◽  
Shiwei Chen ◽  
Xibin Yi ◽  
Xinfu Zhao ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Water Resistance ◽  
In Situ Polymerization ◽  
Chemical Interaction ◽  
Low Cost ◽  
Urea Formaldehyde ◽  
Formaldehyde Emission ◽  
Wood Adhesive ◽  
Halloysite Nanotubes ◽  
Formaldehyde Resin ◽  
Sem Images

Low-cost urea formaldehyde resin (UF)/reactive halloysite nanotubes (HNTs) nanocomposite adhesive was prepared successfully via in situ polymerization. The HNTs were modified to improve its compatibility with polymer. The XRD and FTIR results showed that physical and chemical interaction between the HNTs and polymer resin influenced the structure of UF owing to the functional groups on the HNTs. It is found from SEM images that the modified HNTs could be dispersed uniformly in the resin and the nanocomposite particles were spherical. The performance experiment confirmed that thermal stability of nanocomposite increased largely, formaldehyde emission of UF wood adhesive reduced 62%, and water resistance of UF wood adhesive improved by 84%. Meanwhile, the content of HNTs on the nanocomposites could be up to 60 wt %. The mechanism of the nanocomposites based on the reactive HNTs was proposed. The approach of the preparation could supply an idea to prepare other polymer/clay nanocomposites.

Development and material properties of reinforced plywood using carbon fiber and waste rubber powder

2016 ◽  
Vol 39 (3) ◽  
pp. 675-680 ◽  
Author(s):  
Alireza Ashori ◽  
Mohammad Ghofrani ◽  
Mohammad Hadi Rezvani ◽  
Nadir Ayrilmis
Keyword(s):  
Carbon Fiber ◽  
Material Properties ◽  
Rubber Powder ◽  
Waste Rubber ◽  
Waste Rubber Powder

Recovery of some metal ions using gamma-radiation induced grafted waste rubber powder

1998 ◽  
Vol 238 (1-2) ◽  
pp. 43-51 ◽  
Author(s):  
E. M. Abdel-Bary ◽  
A. M. Dessouki ◽  
E. M. El-Nesr ◽  
M. M. Hassan
Keyword(s):  
Gamma Radiation ◽  
Metal Ions ◽  
Rubber Powder ◽  
Waste Rubber ◽  
Radiation Induced ◽  
Waste Rubber Powder

Grafting waste rubber powder and its application in asphalt

2021 ◽  
Vol 271 ◽  
pp. 121881
Author(s):  
XiaoPing Wang ◽  
Li Hong ◽  
HaiJian Wu ◽  
HuiLin Liu ◽  
DeMing Jia
Keyword(s):  
Rubber Powder ◽  
Waste Rubber ◽  
Waste Rubber Powder

A novel grafting-modified waste rubber powder as filler in natural rubber vulcanizates

2015 ◽  
Vol 133 (6) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ruobing Yu ◽  
Zhaohong Gong ◽  
Weihong Guo ◽  
Haibin Zhang ◽  
Chunling Liu
Keyword(s):  
Natural Rubber ◽  
Rubber Powder ◽  
Waste Rubber ◽  
Waste Rubber Powder ◽  
Natural Rubber Vulcanizates

scholarly journals Preparation of Octadecyl Amine Grafted over Waste Rubber Powder (ODA-WRP) and Properties of Its Incorporation in SBS-Modified Asphalt

Polymers ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 665 ◽  
Author(s):  
Meizhao Han ◽  
Xiang Zeng ◽  
Yaseen Muhammad ◽  
Jing Li ◽  
Jing Yang ◽  
...  
Keyword(s):  
Loss Modulus ◽  
Creep Recovery ◽  
Rubber Powder ◽  
Modified Asphalt ◽  
Grafting Reaction ◽  
Waste Rubber ◽  
Covalent Grafting ◽  
Waste Rubber Powder ◽  
Sbs Modified Asphalt ◽  
Octadecyl Amine

Through a covalent grafting reaction, octadecyl amine (ODA) was grafted on the surface of waste rubber powder (WRP) to obtain an ODA-WRP modifier, which was in turn compounded with a styrene-butadiene-styrene block copolymer (SBS) to prepare ODA-WRP/SBS-modified asphalt. The three major indicators (i.e., dynamic shear rheometer (DSR), multi-stress creep recovery (MSCR), and separation tests) showed that 1-ODA-WRP effectively improved the complex shear modulus (G*), elastic Modulus (G′), and loss modulus (G″) by 36.47%, 40.57%, and 34.77% (64 °C and 10 Hz), respectively, as compared to pristine SBS-modified asphalt. Fluorescence microscopy (FM) results concluded that the enhancement in mechanical properties was accredited to the better compatibility of various components in asphalt and establishment of network structure between ODA-WRP and SBS in ODA-WRP/SBS-modified asphalt. Fourier infrared spectroscopy (FT-IR) and scanning electron microscope (SEM) analyses confirmed the successful synthesis of ODA-WRP. This study could be of great help in synthesizing ODA-WRP asphalt modified with SBS for highways and construction applications.

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