Elastomeric Polymers
An elastomer is a polymer with the property of viscoelasticity (colloquially “elasticity”), generally having notably low Young’s modulus and high yield strain compared with other materials. The term, which is derived from elastic polymer, is often used interchangeably with the term rubber, although the latter is preferred when referring to vulcanisates. Each of the monomers which link to form the polymer is usually made of carbon, hydrogen, oxygen and/or silicon. Elastomers are amorphous polymers existing above their glass transition temperature, so that considerable segmental motion is possible. At ambient temperatures rubbers are thus relatively soft (E~3MPa) and deformable. Their primary uses are for seals, adhesives and molded flexible parts.Modified Plastics (MPI) custom designed compounds are value added components in countless end –use applications in servicing a variety of industries including:
PAL is committed to promoting sustainability and Environmental Leadership. Concern for the environment and promoting a broader sustainability agenda are integrated in PAL’s decision making and we promote sustainability awareness in the community of Santa Ana by adopting several initiatives aimed to reduce PAL’s environmental impact and raise awareness.
We believe that environmental awareness is not about being fanatical. What we are really talking about is balance, logic and a reconnection with the world in which we live. There is so much unnecessary waste that we generate in this world, there are so many unhealthy ingredients that we digest. There are so many things that we do not need or want, that get in our way! We want to empower our staff by creating awareness and by demonstrating best practice to the extent possible.
Specifications
| Polymer Family | Advantages | Disadvantages |
|---|---|---|
| PET | FDA, Easy fill, Medical applications, Ski boot strap | Limited Softness, Strong Acids and Bases |
| PUR | Wear, Caster treads, Pipe gaskets | Limited Softness, Sulphuric acid |
| PVC Ionomer | Colorable, Weatherable, Soft Grips, Sports equipment, Sunroof Seal | Wide softness range, Fuel, Acetone |
| PVC-NITRILE | Oil, Gasoline, Under the hood, Gaskets, Autoplug, Soft grip specialty | Not FDA, Fumes, Mold Deposits |
| TPVlcanate (PP) | Oil, Gasoline, Soft grip toll handles, Door Gaskets | Limited hardness, Surface appearance |
| SEBS (PP) | Appearance, Tacky feel, Semi weatherable, Bicycle grips, Shoe pieces | Sterilization, Hot Water, Wide softness range |
| SBS (PS) | Very tacky feel, Low durometer, Fishing lures, Tea stoppers | Sterilization, Hot Water, Tear Strength, Widest Range |
| EVA (HDPE) | Better Chemical resistance than POE-POP, FDA sports mouthpieces, Stiff gaskets, Lids | Limited Hardness, sticky Kerosene |
| PE, TPOE, POP | Low temp performance, FDA, Furniture guides, Clear vacuum hoses | Limited Hardness, Gasoline |
| Flexible PVC | Chemical resistance, Weatherable, Flexible, Suction cups, Electrical gaskets | Wide softness range, Fumes, Mold Deposits |
