Plastics Standards - Standards Products - Standards & Publications
ASTM's plastics standards are instrumental in specifying, testing, and assessing the physical, mechanical, and chemical properties of a wide variety of materials and products that are made of plastic and its polymeric derivatives.
Plasticizers - ASTM International
Plasticizers are primarily employed in heavy gage coatings and/or when improved toughness is required for industrial, automotive, and appliance applications. Plasticizers function by reducing the glass transition temperature of the resin to a point below its application temperature.
An Evolutionary-Based Prediction Model of the 28-Day Compressive
High-performance concrete (HPC) is a class of concretes that may contain more cementitious materials other than portland cement, such as fly ash and blast furnace slag, in addition to chemical admixtures, e.g., plasticizers. Strength, durability, and rheological properties of the normal concrete are enhanced in HPC.
ASTM International - ASTM D3465-21 - Standard Guide for Purity
1.1 This gas chromatographic guide covers a procedure for extending the range of purity determination of monomeric plasticizers beyond that now determined by other methods. Due to the need to volatilize the plasticizer, only monomeric plasticizers having definitive boiling points and a molecular weight less than 1000 Daltons, such as dioctyl phthalate, are applicable to this guide.
Current Status of Plasticizer Research | SpringerLink
In the 1990s, phthalate esters including DBP, DOP, DNOP, DIOP, and DINP were used as plasticizers in plastic materials such as PVC. Because of the benzene ring involved in their structures, these phthalates were considered hazardous and thus were criticized when used in toy-manufacturing plastics and even were banned in some countries.
- How many high boiling fluids are a plasticizer?
- Several thousand high boiling fluids are potential plasticizers for coatings applications. The choice of plasticizer is dependent on compatibility with the resin in use, cost, and other desired attributes. Plasticizers may be classified by both chemical structure and performance characteristics, as shown in Table 1 .
- What are ASTM plastics standards?
- ASTM's plastics standards are instrumental in specifying, testing, and assessing the physical, mechanical, and chemical properties of a wide variety of materials and products that are made of plastic and its polymeric derivatives.
- Why do we use high boiling fluids as plasticizers?
- Access your content now. PAINT AND COATING FORMULATIONS OFTEN incorporate high boiling fluids as plasticizers where rigid or brittle resins fail to meet toughness and flexibility requirements. The primary function of the plasticizer is to impart flexibility to the resin, thus minimizing film cracking.
- What is a plasticizer used for?
- Plasticizers are primarily employed in heavy gage coatings and/or when improved toughness is required for industrial, automotive, and appliance applications. Plasticizers function by reducing the glass transition temperature of the resin to a point below its application temperature.
- What are the characteristics of a plasticizer?
- Typical plasticizers are liquid esters of molecular weight between about 200 to 800, with specific gravities between 0.75 and 1.35 at 20/20°C, viscosities between 50 to 450 cSt, vapor pressure of less than 3.0 mm of mercury at 200°C, and flash points greater than 120°C (248°F).
- What is a plasticizer extender?
- Plasticizer extenders are commonly used in extruded or molded flexible plastic shapes. Extenders are low-cost organic oils that may be subdivided as groups of aliphatic, aromatic, or chlorinated hydrocarbons. They are seldom used in coatings due to their relatively high volatility and limited compatibility in polar resins.
