scholarly journals Preparation of Magnesium-Aluminum Hydrotalcite by Mechanochemical Method and Its Application as Heat Stabilizer in poly(vinyl chloride)

Materials ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5223
Author(s):  
Yinan Jiang ◽  
Zhanhong Yang ◽  
Qingsong Su ◽  
Linlin Chen ◽  
Jian Wu ◽  
...  
Keyword(s):  
Vinyl Chloride ◽  
Raw Materials ◽  
Mechanochemical Method ◽  
Heat Stabilizer ◽  
Poly Vinyl Chloride ◽  
Washing Process ◽  
Traditional Preparation ◽  
Stability Time ◽  
Hydrothermal Methods ◽  
Better Than

The traditional methods for preparing magnesium aluminum layered double hydrotalcite (Mg2Al-CO3LDHs) in industry include coprecipitation and hydrothermal methods. Both these methods have the disadvantages of high preparation cost and complicated water washing process. Using Mg(OH)2, Al(OH)3, and CO2 as raw materials in this work, the Mg2Al-CO3 LDHs are successfully prepared by mechanochemical method, which solves the shortcomings of traditional preparation method and realizes the conversion and utilization of CO2 resource. The prepared Mg2Al-CO3 LDHs are evaluated as a heat stabilizer in poly(vinyl chloride) (PVC). The result indicates that, when 2.4 phr Mg2Al-CO3 LDHs, 0.3 phr ZnSt2, and 0.3 phr of zinc acetylacetonate are added to the PVC, the thermal stability time of PVC can reach 190 min, which is better than PVC containing commercial Mg2Al-CO3 LDHs. Meanwhile, its processing performance is basically the same as the PVC containing commercial Mg2Al-CO3 LDHs.

Green preparation and characterization of a novel heat stabilizer for poly(vinyl chloride)–hydrocalumites

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 32020-32026 ◽  
Author(s):  
Xing Wen ◽  
Zhanhong Yang ◽  
Jie Yan ◽  
Xiaoe Xie
Keyword(s):  
Vinyl Chloride ◽  
Reaction Times ◽  
Heat Stabilizer ◽  
Poly Vinyl Chloride

Hydrocalumites are successfully prepared by using Ca(OH)2, Al(OH)3 and Na2CO3 with different reaction times and crystallization times.

scholarly journals Poly(vinyl chloride) Composites with Raspberry Pomace Filler

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1079
Author(s):  
Jacek Mirowski ◽  
Rafał Oliwa ◽  
Mariusz Oleksy ◽  
Jolanta Tomaszewska ◽  
Joanna Ryszkowska ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Thermal Stability ◽  
Tensile Strength ◽  
Vinyl Chloride ◽  
Chemical Structure ◽  
Shore Hardness ◽  
Poly Vinyl Chloride ◽  
Bio Oil ◽  
Natural Filler ◽  
Stability Time

This study examined, the effect of chemically extracted raspberry pomace on the thermal stability, mechanical properties, flammability, chemical structure and processing of poly(vinyl chloride). It was observed that the pomace in this study was used to extract naphtha, thereby permitting the removal of bio-oil as a factor preventing the obtaining of homogeneous composites. Furthermore, adding 20% raspberry pomace filler after extraction extended the thermal stability time for the composites by about 30%. It was observed that composite density, impact strength, and tensile strength values decreased significantly with increasing concentrations of filler in the PVC matrix. At the same time, their modulus of elasticity and Shore hardness increased. All tested composites were characterized by a good burning resistance with a flammability rating of V0 according to the UL94 test. Adding 20 to 40% of a natural filler to the PVC matrix made it possible to obtain composites for the production of flame resistant elements that emitted less hydrogen chloride under fire conditions while ensuring good rigidity.

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