Chemical Resistance of Specialty Thermoplastics

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However, increase in demand for specialty thermoplastics in the health care industry, due to the increase in regulations, is estimated to provide lucrative opportunities to manufacturers of specialty thermoplastics during the forecast period. For instance, in , PolyOne Corporation, a leading manufacturer of specialized polymer materials, announced plans to acquire Formulated Polymers Ltd, a leading engineering thermoplastic compound maker based in India. Automotive, Segment to Offer Attractive Opportunities Increasing demand for electronic gadgets such as mobile phones among the large population is anticipated to fuel global specialty thermoplastics market in the coming years.

Specialty thermoplastics are extensively employed in the number of electronic gadgets and devices due to excellent insulation and low electricity modulus characteristic.

These polymers possess high heat and chemical resistance; and high dimensional stability. They are widely used in electronics and lighting devices, transmission launch devices, thermal and air management, fuel and SCR systems, and power electronics systems. Aerospace industry is among prominent user specialty thermoplastics owing to the lightweight benefits, high stiffness, and excellent heat resistance properties. Aircraft components are required to withstand extreme pressure condition.

This key aspect is projected to fuel specialty thermoplastics market during the forecast period. Rise in demand for the lightweight vehicle components in order to replace heavyweight metal parts to curb on carbon emission across the globe is expected to boost for specialty thermoplastic market during the forecast period. In addition, major automotive vehicle manufacturers and bod parts makers are strongly focusing on reducing vehicle body weight and by employing plastic components replacing metal parts. This trend is expected to fuel demand for specialty thermoplastic compounds in the automotive end-use industry owing to the prominent substitute for metal parts.

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Volatile Raw Material Prices and Stringent Regulations to Hamper Market: High production cost and fluctuation in prices of raw materials are anticipated to hamper the market during the forecast period. Specialty thermoplastics are highly dependent on the crude oil and fossil fuel resources for the high quality raw material production. However, crude oil has become important resource of number application such as in the polymer production.

Fluctuating international tariffs increases gap for supply and demand among raw material supplier and end use industry. Highly volatile crude oil prices directly impacts the polymer production cost across the globe. This factor may limits the expansion of specialty thermoplastic market in the coming years. Stringent regulations for the production of polymer composites owing to high release of large amount of carbon foot prints cause environmental damage. Most countries have restricted usage and production of polymer composites by implementing heavy taxation.

CHEMICAL RESISTANCE OF SPECIALTY THERMOPLASTICS: CHEMICAL RESISTANCE (VOLUME 3) | Van Schaik

These key factors may hamper growth for specialty thermoplastics market in the coming years. Technological innovations and increase in demand for bioplastics in the U. Asia Pacific is projected to become a leading consumer of specialty thermoplastics in the near future. Rapid urbanization and expansion of construction and automotive industries are likely to propel the demand for specialty thermoplastics in the region. In semiconductors, a new commercial use is robotic end effectors for silicon wafer pick-up.

Other uses include bearings and thrust washers. New PEEK resins and blends are in development. These high-heat connectors are smaller and thinner than previous generations. At press time in early May, Victrex was planning to introduce its first line of PEEK films and new manufacturing capability later that month the company declined to disclose details in advance.

Degussa expanded its technology base with the acquisition of know-how and patents from Ticona GmbH in Germany related to polyaryl ether ketones PAEK. The undisclosed capacity in China is said to be adequate to meet global supply needs and future growth. Demand is there now because of the unique high-performance polymers that are available to reduce weight and energy consumption. The Vestakeep line includes eight grades for injection molding and extrusion.

Four unreinforced resins of low to high viscosity Vestakeep G, G, G, G are for gears, medical devices, and extruded products. A special unreinforced extrusion grade G is for wire and cable. A smaller player in polyketones is Oxford Performance Materials, in business since Its OxPekk line includes 10 grades for injection molding and extrusion.

They comprise high- and low-viscosity resins, both unfilled and reinforced with glass or carbon fiber. OxPekk boasts a glass-transition temperature Tg of C vs. Faced with commoditization and shrinking margins within its engineering resin line, GE Plastics has penetrated the ultra category with a new thermoplastic polyimide TPI.

Extem is an amorphous polymer with similar processability but much greater heat resistance than its cousin, Ultem polyetherimide. Tg of Extem is up to C and continuous-use temperature is up to C. It was developed to offer performance properties competitive with other ultra polymers plus improved processability.

High-Temperature Wear Resistance

Two families and a total of seven resins currently comprise the Extem line, but additional grades are expected this year. Extem UH resins have maximum heat and chemical resistance, including enhanced resistance to chlorinated solvents such as methylene chloride. Higher-flow XH resins have a Tg up to C and can fill thin-wall, complex parts. The materials can be molded and extruded on standard equipment. GE is working with its LNP business unit to develop blends with crystalline resins to gain more flow and chemical resistance.

Targeted applications include down-hole oil and gas production equipment, bearings, and gears. New wear-resistant and electrostatic-dissipative versions of Extem and blends with other polymers are being pursued.

Chemical Resistance of Specialty Thermoplastics: Chemical Resistance, Volume 3

A third family, Extem VH, is slated for introduction next year. It will offer up to three times more impact strength with the same flowability and heat resistance as the current materials. GE is currently supplying from a U. A large-scale facility is scheduled for startup in in Cartagena, Spain. Extem is the second entry in the TPI category, which was pioneered by Mitsui Chemicals in the early s. Its Aurum TPI provides a continuous-use temperature up to C, tensile strength to 38, psi, low outgassing, and chemical resistance.

wayduretiprei.cf Even higher-heat grades with HDT up to C are in development. Aurum is amorphous in its as-molded or extruded form, but parts become crystalline with subsequent heat treatment—which is necessary to develop the ultimate properties of the material. According to Mitsui business director Masayuki Makihara, injection molded automotive, industrial, and semiconductor applications include gears, seal rings, bearings, retainers, bushings, thrust washers, burn-in sockets, thermal and electrical insulators, and trays and carriers for semiconductor and hard-disk manufacturing.

Aurum can be extruded into film from 0. Polybenzimidazole PBI is a unique amorphous thermoplastic produced by one supplier.

Finishing and Polishing Thermoplastics

It was commercialized by Celanese Corp. It withstands brief exposure up to C and also retains its properties down to C. PBI does not burn and produces little or no smoke or off-gases at F.

It is highly resistant to acids, bases, and chemicals. At 58, psi, it boasts the highest compressive strength of any thermoplastic or thermoset. Because it has no standard melting point, Celazole is available as a mesh powder for compression molding. Molding requires high temperature C and pressure psi. PBI is also sold as fibers and as a liquid solution for film casting, coating, and impregnation. Celazole U is a standard grade for bushings and seals in the chemical processing and aerospace industries.

High-purity USD grade is for semiconductor applications that are sensitive to trace metals. In the first three parts of this series we focused on those influences that cause molded parts to get smaller. But there are environmental factors that also cause parts to increase in size over time.