scholarly journals Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide as a Bi-Functional Additive for Poly(Vinyl Chloride)

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 813 ◽  
Author(s):  
Yuepeng Li ◽  
Degang Li ◽  
Wenyuan Han ◽  
Manqi Zhang ◽  
Bing Ai ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Decomposition Temperature ◽  
Absorption Capacity ◽  
Metal Alkoxide ◽  
Zinc Metal ◽  
Poly Vinyl Chloride ◽  
Ft Ir ◽  
Dynamic Processing ◽  
Almost All

A new di-mannitol adipate ester-based zinc metal alkoxide (DMAE-Zn) was synthesized as a bi-functional poly(vinyl chloride) (PVC) thermal stabilizer for the first time. The materials were characterized with Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). Characterization results confirmed the formation of Zn–O bonds in DMAE-Zn, and confirmed that DMAE-Zn had a high decomposition temperature and a low melting point. The thermal stability of DMAE-Zn on PVC also was tested by a conductivity test, a thermal aging test, and a UV-visible spectroscopy (UV-VIS) test. PVC stabilized by DMAE-Zn had a good initial color and excellent long-term stability. UV-VIS also showed that the conjugated structure in PVC stabilized by DMAE-Zn was almost all of the triene, suggesting that the addition of DMAE-Zn would suppress the formation of conjugated structures above tetraene. The dynamic processing performance of PVC samples tested by torque rheometer indicated that, having a good compatibility with PVC chains in the amorphous regions, DMAE-Zn contributed a good plasticizing effect to PVC. DMAE-Zn thus effectively demonstrates bi-functional roles, e.g., thermal stabilizers and plasticizers to PVC. Furthermore, FT-IR, a HCl absorption capacity test, and a complex ZnCl2 test were also used to verify the thermal stability mechanism of DMAE-Zn for PVC.

scholarly journals Facile Synthesis of Di-Mannitol Adipate Ester-Based Zinc Metal Alkoxide As Bi-Functional Additives for PVC

2019 ◽  
Author(s):  
Yuepeng Li ◽  
Degang Li ◽  
Wenyuan Han ◽  
Manqi Zhang ◽  
Bing Ai ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Decomposition Temperature ◽  
Absorption Capacity ◽  
Metal Alkoxide ◽  
Functional Roles ◽  
Zinc Metal ◽  
Ft Ir ◽  
Dynamic Processing ◽  
Initial Color ◽  
Almost All

A new di-mannitol adipate ester-based zinc metal alkoxide (DMAE-Zn) was synthesized as a bi-functional PVC thermal stabilizer for the first time. The materials were characterized with Fourier-transform Infrared spectroscopy (FT-IR) and thermogravimetric analysis (TGA). Characterization results confirmed the formation of Zn-O bonds in DMAE-Zn; and that DMAE-Zn had a high decomposition temperature and a low melting point. The thermal stability of DMAE-Zn on PVC also was tested by conductivity test, thermal aging test, and UV-visible spectroscopy (UV-VIS) test. PVC stabilized by DMAE-Zn had a good initial color and excellent long-term stability. UV-VIS also showed that the conjugated structure in PVC stabilized by DMAE-Zn was almost all of the triene, suggesting that the addition of DMAE-Zn would suppress the formation of conjugated structures above tetraene. Dynamic processing performance of PVC samples tested by torque rheometer indicated that, having a good compatibility with PVC chains in the amorphous regions, DMAE-Zn contributed good plasticizing effect to PVC. DMAE-Zn thus effectively demonstrates bi-functional roles, e.g., thermal stabilizers and plasticizers to PVC. Furthermore, FT-IR, HCl absorption capacity test, and complex ZnCl2 test were also used to verify the thermal stability mechanism of DMAE-Zn for PVC.

scholarly journals Effects of Zeolites on Thermal Stability of Poly(vinyl chloride)

Polymer Korea ◽  
2015 ◽  
Vol 39 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Jiayou Xu ◽  
Qinghua Liang ◽  
Xiumei Xian ◽  
Kaidan Li ◽  
Jie Liu
Keyword(s):  
Thermal Stability ◽  
Vinyl Chloride ◽  
Poly Vinyl Chloride ◽  
Thermal Stability Of

Study of the rheology and foaming processes of poly(vinyl chloride) plastisols with different foaming agents

2019 ◽  
Vol 39 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Yubi Ji ◽  
Heng Luo ◽  
Min Shi ◽  
Zhao Yang ◽  
Wei Gong ◽  
...  
Keyword(s):  
Vinyl Chloride ◽  
Complex Viscosity ◽  
Mechanical Analysis ◽  
Decomposition Temperature ◽  
Scanning Calorimetry ◽  
Foaming Agents ◽  
Blowing Agents ◽  
Poly Vinyl Chloride ◽  
Chemical Blowing Agents

AbstractPoly(vinyl chloride) (PVC) plastisols are widely used in the production of flexible PVC foams. In this study, we investigated the evolution of the complex viscosity of PVC plastisol by dynamic oscillatory tests, the storage modulus of the PVC compound by dynamic mechanical analysis, and the thermal behavior including the decomposition of three chemical blowing agents (CBAs), namely, azodicarbonamide, 4,4′-oxybis(benzenesulfonyl hydrazide), and sodium bicarbonate, by differential scanning calorimetry. Furthermore, the morphology and quality of the foams obtained from the corresponding plastisols were characterized by scanning electron microscopy. The results indicated that the onset decomposition temperature T2(5%) of a CBA in plastisol is the most critical indicator of the foam quality. The temperature difference corresponding to [T2(5%) – Tηmax] was also proved to be another important parameter. When T2(5%) is within the optimum temperature range of a PVC plastisol, the bigger the [T2(5%) – Tηmax] difference, the better the quality of the foams.

scholarly journals Recycled Glass Fibres from Wind Turbines as a Filler for Poly(Vinyl Chloride)

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Krzysztof Lewandowski ◽  
Katarzyna Skórczewska ◽  
Kazimierz Piszczek ◽  
Włodzimierz Urbaniak
Keyword(s):  
Thermal Stability ◽  
Glass Transition ◽  
Transition Temperature ◽  
Composite Materials ◽  
Glass Transition Temperature ◽  
Impact Strength ◽  
Vinyl Chloride ◽  
Turbine Blades ◽  
Wind Turbine Blades ◽  
Poly Vinyl Chloride

This paper presents the method of using glass fibre with carbon deposit (GFCD), derived from the recycling of wind turbine blades, for production of composite materials based on poly(vinyl chloride) (PVC). Composite materials containing from 1 to 15 wt% of GFCD were produced by plasticising with a plastographometer and then by pressing. The processability and performance were studied. Mechanical properties in static tension, impact strength, and thermal stability were determined. Glass transition temperature was also determined by means of the dynamic mechanical thermal analysis (DMTA). The GFCD percentage of up to 15 wt% was found not to slightly affect the change in the processability, thermal stability, and glass transition temperature. PVC/GFCD composite materials are characterised by a definitely greater elastic modulus with simultaneous decrease of tensile strength and impact strength. An analysis with scanning electron microscopy revealed good adhesion between the filler and the polymer matrix.

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