ประเภทของยางและการเลือกใช้วัตถุดิบ

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ประเภทของยางและการเลือกใช้วัตถุดิบ

 RUBBER OF MATERIALS

Physical PropertiesNRNBRNEOPRENESBREPDMHypalonSiliconePolyurethaneVITON
Heat C70120120100150160300100250
Oil & Solvent ResistanceDABACABCA
Tensile StrengthABBACBCAB
Tear StrengthBBBCBADAC
Abrasion ResistanceBBBBBBDAC
Acid & BaseCBBCBABBB
Compresion SetBBDBABCAA
Rebound resilenceBBBBBBCBC
Gases & SteamDBBDCDADD

A= Excellent      B= Good    C= Fair     D= Poor 

 

Natural Rubbe

natural rubber is derived from the Hevea Brazilliensis tree. Which originates from the Amazon River group in South America, the fresh latex from the rubber tree is thick white and has dry rubber content. If the latex obtained through centrifuge ) Until the latex has increased to 60% dry rubber content is called natural rubber latex is a type of polymer that has many outstanding properties such as good mechanical properties, high elasticity, toughness. It has a high abrasion resistance and can adhere to other materials such as Metal and textiles can be used. To be used in a variety of engineering applications. Rubber industry consists of two industries: raw material industry And industrial production as a product


Neoprene Rubber  (Chloroprene)
Neoprene rubber, also known as chloroprene, is a synthetic rubber. It is less susceptible to degradation, corrosion and combustion than most other synthetic and natural rubbers and is therefore often used as a base material in anti-corrosion coatings, high-pressure gaskets, belts and adhesives. It is also used for stripping resistant to degradation from sunlight, oil, chemicals, ozone, weather conditions. Power transformer And for the mask Water repellent and maintains good rigidity, flexibility, twist and elongation.

Silicone Rubber
Silicone rubber, also known as polysiloxane, is highly temperature resistant as well as ultraviolet, ozone, and fire. Manufactured in different colors and with great flexibility, it is available in both solid and liquid formulations. It is basically inert material that does not react with most chemicals. Due to this inertness, it is one of the few synthetic rubber hypoallergenic and biocompatible. Therefore, silicone is often used to make medical devices such as respiratory masks, medical surgical gloves. With the many properties of silicone rubber that is flexible. And tolerates very high or low temperature changes This makes silicone rubber an industrial material. Especially in the production of food, pharmaceutical and cleaning equipment It is also used for food storage containers, baby care items, utensils, cosmetics and cooking utensils. Silicone is a more expensive synthetic rubber and therefore has been replaced by most other heavy industrial synthetics, many of which are unbrokenly expensive.


Nitrile Rubber
Nitrile rubber is also called Nitrile Butadiene Rubber (Buna-N) or NBR, it is resistant to heat, gas and oil permeability. Due to its resistance to oil Higher oil and fuel resistance are therefore often used in the automotive industry for gaskets, o-rings, oil seals and engine hoses. Nitriles are also used in the aerospace industry for sealed fuel tanks.Its durability and resistance make it widely used to make heavy-duty nitrile protective gloves in the automotive industry. Will be used as an oil pipe Water pipes in the engine compartment
See also: All About Nitrile Rubber - Properties, Applications and Uses

EPDM Rubber
EPDM rubber, which stands for Ethylene Propylene Diene Monomer rubber, is a synthetic rubber. It is extremely resistant to hot and cold temperatures, so it is often used in roofing, as a sealant, and for other outdoor applications such as garage door seals and ducts. EPDM is also used in the automotive industry. EPDM rubber's flexibility makes it a good choice for secondary or high-vibration machines because of its insulation and noise reduction, but will not be resistant to petroleum-based oils, oils or other lubricants.


SBR Rubber
SBR, which stands for Styrene-Butadiene Rubber, is known for its hardness and durability. It is also much cheaper than other synthetic compounds, rubber is widely used as it is durable and resistant to friction and tearing. These properties also make the SBR useful for mechanical substrates, reducing vibration. It is resistant to hydraulic brake fluid and therefore is used for sealing in hydraulic brake systems. As this rubber is inexpensive and can be easily processed, it saves both raw material and labor costs.

Butyl Rubber
IIR butyl rubber, also known as isobutylene, isoprene, is one of the most gas permeable synthetic rubber. For this reason, it is often used to make inner tubes and balls for liquid aeration, butyl is used in diesel and petroleum oils as a fuel injector cleaner. Often used in products designed to clean up oil spills. It is used to make air condoms for drying tires to keep their shape in the tire manufacturing industry, etc. Good absorption of mechanical energy and vibration over a wide temperature range. Therefore suitable to produce a rubber suspension as well
 

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