Adhesives 101: The Basic Composition of Hot Melts - H.B. Fuller
Plasticizers are processing oils and waxes used primarily to adjust the viscosity and melt-rate of a product. However, they also help set the adhesive and cohesive properties; modify the open time; and provide additional flexibility. In PSA formulations, oils are usually added, while in EVA hot melts, waxes are preferred. Antioxidants
Plasticizer - an overview | ScienceDirect Topics
The largest market sector for plasticizers is the film, sheet, and coated fabric market sector. These products are manufactured by calendering, extrusion, cast films, and spread coating processes and are used to produce a wide variety of products including table cloths, packaging films, swimming pool liners, tarpaulins, agriculture films, wall coverings, office products, awnings, shower
Specialty Plasticizers for Rubber/Elastomers | Hallstar
Normal service temperatures are -40°C to 125°C, but special compounding can broaden this range to -55°C to 150°C for intermittent service. The elastomer requires antioxidants, anti-ozonants, fungicides, plasticizers, tackifiers and flame-retardants as the occasion and severity of the application demands.
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- How are plasticizers classified?
- Plasticizers are classified based on their chemical composition. It is important to understand the influence of structural elements on the properties of plasticizers and their effect on base polymers. For example, the presence of elements like alcohols in a homologous series of phthalates, and adipates.
- What is a polymeric plasticizer?
- Polymeric plasticizers are typically made from aliphatic dibasic acids such as adipic acid and diols. They are primarily valued for their permanence. These plasticizers are generally classified as polyesters, not adipates. Many have low solvency for PVC and high viscosity. Both these factors can make processing f-PVC compounds difficult.
- What materials use plasticizers?
- Many different materials use plasticizers, including PVC, rubber, plastics, etc. In fact, the discovery of plasticizers has almost made the polymer industry possible. Without plasticizers, most polymers would be too brittle and hard to use.
- What industries use plasticizers?
- You'll find plastics with plasticizers in almost every industry, including: Telecommunications to form durable, low-friction, flexible casing to go around wires and cables. Despite it's name, plasticizers are also used in rubber and adhesives, and most surprising, they're also used in concrete and stucco.
- What are plasticizers used in PVC & other plastics?
- Plasticizers used in PVC and other plastics are often based on esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length. These compounds are selected on the basis of many critieria including low toxicity, compatibility with the host material, nonvolatility, and expense.
- What makes a good plasticizer?
- A good plasticizer must blend uniformly with the PVC matrix, ensuring that it does not phase-separate or lead to inconsistency in the material properties. An effective means to evaluate compatibility is through the analysis of: Solubility: The plasticizer should dissolve in PVC without forming precipitates.
