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Last Updated: Apr 25, 2025 | Study Period: 2023-2030
The thermostat housing controls coolant intake in the engine compartment. The heat from the engine is transferred via coolant to the radiator bay, where it is dispersed into the atmosphere. Inadequate coolant levels in the engine compartment can lead to incorrect engine operation or even overheating.
Typically, they are constructed from a plastic composite, pot metal, aluminium, or a comparable material. Although plastic and rubber gaskets are also available, a fibre gasket is commonly used to seal off the thermostat housing from the block or intake manifold.
The thermostat functions like a valve, opening and closing in response to temperature. Until the engine reaches a predetermined minimum temperature, the thermostat isolates it from the radiator.
The engine would always lose heat to the radiator and require longer to warm up without a thermostat. Thermostats come in two varieties: low-voltage thermostats and line-voltage thermostats.
Each of these thermostat types is compatible with particular kinds of heating systems, and they vary according to the voltage they require to function.
A semi-crystalline, high temperature engineering thermoplastic is polyphenylene sulphide (PPS). It has a high melting point (280°C), is stiff, and is opaque.
It may compete favourably in terms of characteristics with PTFE, PEEK, and even PI (Polyimide). It is a nice compromise between PTFE and PEEK in terms of price because it falls between the two.
The global Automotive Thermostat housing PPS resin market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Today, Toray Industries, Inc. stated that it had developed a new polyphenylene sulphide resin with the highest degree of flexibility in the world while retaining its exceptional heat resistance and chemical resistance.
The company intends to begin recommending uses for the new resin, primarily for autos, and will work to expand those uses into a variety of industrial material industries. Super engineering plastic PPS resin has outstanding heat resistance and chemical resistance capabilities that are well-balanced, and its sales are increasing annually.
It is frequently utilised, especially in automotive applications, where it must replace metals and provide heat resistance, lightness, and high strength. PPS resin including elastomer is also employed in applications that call for flexibility, such as washers and automotive pipework.
The creation of PPS resin with high flexibility has been a struggle for many years, but there was a limit to adding flexibility to PPS resin while preserving heat resistance and chemical resistance.
The main application for PPS is in the engine compartment, followed by electrical components. Fuel injection systems, coolant systems, water pump impellers, thermostat holders, electric brakes, switches, bulb housing, and other automotive components all use PPS.
UL94 V-0 flammability ratings for PPS compounds are also achieved without the addition of flame retardant chemicals. To fulfil the demands of high precision moulding applications, special low flash grades have been developed.
Polyphenylene Sulfide is also utilised in the electrical and electronic industries to create a variety of products, including bobbins and connectors, hard drives, electronic housings, sockets, switches, and relays.
The primary development trend affecting PPS in electrical and electronic applications is the replacement of PPS with alternative lower temperature polymers.
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