scholarly journals Crosslinking Reaction of Polybutadiene Using Urethane Acrylate Derived from Castor Oil

2019 ◽  
Vol 76 (3) ◽  
pp. 257-260
Author(s):  
Hiroto MATSUNO ◽  
Hiroaki KOUZAI
Keyword(s):  
Castor Oil ◽  
Urethane Acrylate ◽  
Crosslinking Reaction

Eco-friendly castor oil-based UV-curable urethane acrylate zinc oxide nanocomposites: Synthesis and viscoelastic behavior

2019 ◽  
Vol 54 (1) ◽  
pp. 101-110 ◽  
Author(s):  
Abbas Madhi ◽  
Behzad S Hadavand
Keyword(s):  
Zinc Oxide ◽  
Castor Oil ◽  
Zinc Oxide Nanoparticles ◽  
Viscoelastic Behavior ◽  
Environmentally Friendly ◽  
Urethane Acrylate ◽  
Nano Zno ◽  
Uv Curable ◽  
Maximum Value

Attention to environmental problems and the importance of maintaining it have caused the researchers to pay more attention in this regard. The production of polymers and resins has increased in recent years and has affected by environmental pollution due to their long-term degradation. An appropriate solution to this problem is the synthesis of degradable and environmentally friendly polymers and resins. Using natural materials in the synthesis of polymers and resins can help them to be environmentally friendly. The purpose of this research is to synthesize urethane acrylate resins using natural resources. For this purpose, the urethane acrylate pre-polymer was synthesized with castor oil. Then, using modified zinc oxide nanoparticles with 1, 3 and 5 wt% urethane acrylate zinc oxide nanocomposites were produced. The use of castor oil as a degradable part and lack of organic solvent in radiation systems led to the creation of an environmentally friendly resin. Subsequently, the viscoelastic behavior of the prepared nanocomposite was evaluated. Spectrometry results confirm the synthesized resin structure. The morphology of nanocomposites confirmed the proper particle size distribution in a 3 wt.% sample. The results of the dynamic mechanical thermal analysis test showed that increasing the amount of modified nano ZnO could increase the glass transition temperature, and the maximum value was observed in 5 wt.% modified nano ZnO (69.7℃).

scholarly journals STUDY OF THE INFLUENCE OF CONSTITUENT RATIO ON THE CROSSLINKING REACTION OF CASTOR OIL MODIFIED EPOXY RESIN BY 4.4’-DIAMINO DIPHENYLMETHANE

2016 ◽  
Vol 54 (4) ◽  
pp. 501
Author(s):  
Do Minh Thanh ◽  
Le Xuan Hien ◽  
Nguyen Tien Dung
Keyword(s):  
Epoxy Resin ◽  
Castor Oil ◽  
Impact Resistance ◽  
Crosslinking Reaction ◽  
Curing Time ◽  
Optimal Conditions ◽  
Swelling Degree ◽  
Gel Fraction ◽  
Relative Hardness ◽  
Modified Epoxy

The influence of the contents of epoxy resin modified by castor oil (ECO), 4,4’- diamino diphenyl methan (DDM) on the crosslinking reaction of ECO by DDM at 1800C have been studied and the mol ratio of A/E = 1, curing time of 270 min have been determined to be optimal conditions for formation of the cured coating having gel fraction, swelling degree, flexibility, adhesion, impact resistance, and relative hardness of 86%; 188 %; 1 mm, 0 point, 200 kG.cm and 0.33, respectively.

scholarly journals Cross-Linking Reaction of Polybutadiene with Urethane Acrylate Derived from Castor Oil

2016 ◽  
Vol 73 (3) ◽  
pp. 330-332 ◽  
Author(s):  
Nozomu UCHIDA ◽  
Kousuke SHIMOMURA ◽  
Hiroaki KOUZAI
Keyword(s):  
Castor Oil ◽  
Cross Linking ◽  
Urethane Acrylate

Fully cross-linked UV-induced peelable acrylic PSA prepared from a dual curable castor oil based urethane acrylate oligomer for wafer dicing

2022 ◽  
Vol 163 ◽  
pp. 106680
Author(s):  
Bingyan Sun ◽  
Huimin Wang ◽  
Yanchao Fan ◽  
Xiaomeng Chu ◽  
Shaojie Liu ◽  
...  
Keyword(s):  
Castor Oil ◽  
Urethane Acrylate

Making Castor Oil

1903 ◽  
Vol 55 (1420supp) ◽  
pp. 22756-22757
Keyword(s):  
Castor Oil
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