Effect of Plasticizer (DOP) on Cell Structure and Mechanical
Using supercritical CO2 as the foaming agent, rigid polyvinyl chloride (R-PVC) foam sheets were prepared in a continuous extrusion foaming system. The effects of dioctyl phthalate (DOP) on the rheological properties of PVC were investigated using a Brabender torque rheometer while other basic formula remained unchanged. The influences of DOP content on microstructure, mechanical properties and
Effect of Plasticizer (DOP) on Cell Structure and
The results showed that the addition of DOP resulted in increased flexibility and the elongation at break of the foamed PVC sheet, while the mechanical properties of foamed PVC sheet decreased...
The Effect of Concentration and Type of Plasticizer on the
The efficiency of a plasticizer is defined as the quantity of plasticizer required to provide desired mechanical properties of obtained material [8]. Taking into consideration that effective plasticization is depended on such factors as: chemical structure of the plasticizer, its compatibility and miscibility with the polymer,
The Effect of Concentrations of Modifying Agent and
The injection molding foaming experiments revealed that adding 1 wt% PTFE had the most notable heterogeneous nucleation effect on foamed cells, with the cell size decreasing from 81.5 μm for neat
Effect of Plasticizer (DOP) on Cell Structure and Mechanical
The effects of dioctyl phthalate (DOP) on the rheological properties of PVC were investigated using a Brabender torque rheometer while other basic formula remained unchanged. The influences of DOP content on microstructure, mechanical properties and density of PVC micro foamed sheet were investigated with scanning electron microscopy (SEM).
- How does DOP plasticization affect a polymer chain?
- The DOP plasticization of NBR reduced the intermolecular interaction forces and changed the molecular conformation, increasing the softness and plasticity of the polymer chains. 1. Introduction
- How does DOP affect morphology of PVC foam?
- The influences of DOP content on microstructure, electron m icroscopy (SEM). The results showed that the addition of DOP resulted in i ncreased DOP will cause gas escape and bubble coalescence in the foaming process. Low density PVC foam sheets with fine cell morphology were obtained when 2 phr DOP was added in PVCformula. [1-2]. wood .
- Does modifying agent affect cell morphology of polyvinylchloride plastics?
- This study examined the effects of concentrations of modifying agent (ACR), plasticizer (DOP) and vibration on cell morphology of the formed polyvinylchloride plastics. Cell morphologies were compared over the range of 2 to 6 phr of ACR and 0 to 10 phr of DOP, when other components of the formulation are the same.
- Does DOP affect mechanical properties of acrylonitrile-butadiene-styrene thermoplastic vulcanizate?
- In another study by Dong et al. , the influence of DOP content on the mechanical properties, Mullins effect, and microstructure of acrylonitrile-butadiene-styrene (ABS)/nitrile butadiene rubber (NBR) thermoplastic vulcanizate (TPV) was investigated. The addition of DOP significantly improved the mechanical properties of ABS/NBR TPVs.
- Is dioctyl phthalate a plasticizer for NBR?
- Fig. 1. The polymerization process of the NBR. Dioctyl phthalate (DOP) is a widely-used plasticizer for NBR, and its structure is illustrated in Fig. 2. DOP has excellent compatibility with polymers, producing a strong plasticizing effect.
- Does the plasticizing effect of DOP/NBR increase with increasing DOP mass fraction?
- In terms of plasticizing mechanisms, mobility and flexibility of DOP/NBR composites follow an increasing-then-decreasing trend with increment of DOP mass fraction. This signifies that the plasticizing effect of DOP does not continually increase with increasing DOP mass fraction, but increases up to a certain limit.
