Dibenzoate Plasticizer Technology
Dibenzoate plasticizers are widely utilized in latex caulks because they are compatible with the polymers used in that application. Dibenzoates are also known to be used in the polymer side of two-part insulating glass polysulfide sealants.
Plasticizers - ASTM International
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.
New standard test method to identify plasticizers | Food
On June 6, 2013 the developer of international voluntary consensus standards ASTM International released a new standard test to determine low level migration of phthalates. The method aims to ensure compliance with the U.S. Consumer Product Safety Improvement Act (CPIA) of 2008, Section 108, which prohibits certain products, including toys, from containing 6 phthalates. The
ASTM International - ASTM D3465-21 - Standard Guide
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
Standards used for polyethylene pipe - TWI
ASTM F876-15a Standard specification for cross-linked polyethylene (PE-X) tubing. ASTM F877-11a Standard specification for cross-linked polyethylene (PE-X) plastic hot- and cold-water distribution systems. ASTM F894-13 Standard specification for polyethylene (PE) large diameter profile wall sewer and drain pipe.
- Which plasticizers can be volatilized?
- 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. 1.2 The values in SI units are to be regarded as standard.
- 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 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).
- Why does plasticizer spew?
- If these compressive stresses cannot be relieved rapidly by internal migration of plasticizer, then plasticizer will spew. The internal migration of plasticizer will continue and when a deficiency of plasticizer occurs at the compressed area spewed plasticizer will be reabsorbed.
- 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.
