Cold rubber

Cold rubber

Cold rubber, or cold polymerized rubber, is synthetic rubber (especially, SBR and NBR) emulsion polymerized at a relatively low temperature.

The polymerizing temperature is approximately 5℃ in the case of SBR and 5∼10℃ in the case of NBR. Since rubber molecule types have a smaller number of branches than hot rubber polymerized at high temperature (50℃) and are characterized by good stereoregularity, cold rubber has superior processability as well as the ability to produce vulcanized materials with good tensile strength, expansion and aging resistance, and flex resistance.

Except some SBR and NBR used for special purposes, most SBR and NBR available in the market are considered cold rubber.


Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • Cold Rubber — Cold Rub|ber 〈[koʊld rʌ̣bə(r)] m.; od. s; unz.〉 Synthetikkautschuk, dessen Fabrikation eine sehr niedrige Temperierung erfordert [engl., „kalter Kautschuk, kaltes Gummi“] * * * Cold Rubber   [ kəʊld rʌbə; englisch »kalter Kautschuk«] der, (s),… …   Universal-Lexikon

  • cold rubber — ☆ cold rubber n. a synthetic rubber formed by polymerizing and curing the starting materials, as butadiene styrene, at a temperature of 5°C (41°F) or lower: used in automobile tires because of its special resistance to abrasion …   English World dictionary

  • cold rubber — noun a rubber made at low temperatures (5 degrees Centigrade) which is tougher than conventional rubber and is often used in car tires • Hypernyms: ↑rubber, ↑natural rubber, ↑India rubber, ↑gum elastic, ↑caoutchouc * * * noun : a synthetic rubber …   Useful english dictionary

  • cold rubber — a synthetic rubber made at a relatively low temperature (about 40°F or 4°C) and having greater strength and durability than that made at the usual temperature (about 120°F or 49°C): used chiefly for retreading tires. [1945 50] * * * …   Universalium

  • rubber — Synonyms and related words: Buna, Butyl rubber, IUD, India rubber, Lastex, Paul Pry, ace, bag, baleen, battledore, best bower, birth control device, blubber, bower, breeze, butt in, butter, caoutchouc, cards, caucho, chewing gum, clay, clubs,… …   Moby Thesaurus

  • Cold shrink tubing — is an open ended rubber sleeve, made primarily from rubber elastomers with high performance physical properties, that has been factory expanded or pre stretched, and assembled onto a supporting removable plastic core. Cold shrink tubing shrinks… …   Wikipedia

  • Cold weather boot — Cold weather boots are specialized waterproof combat boots made of rubber, designed to protect the wearer s feet from cold injury and frost bite. They feature thick thermal insulation and can be either white or black in color, the white boots… …   Wikipedia

  • Rubber Boa — Coastal Rubber Boa Conservation status Least Concern (IUCN 3.1) …   Wikipedia

  • Rubber bushing — A rubber bushing is a device, primarily used in suspension systems, which separates the faces of two metal objects whilst still allowing a set degree of movement. This movement allows the suspension parts to move freely for example when traveling …   Wikipedia

  • Cold air intake — A cold air intake is an aftermarket assembly of parts used to bring relatively cool air into a car s internal combustion engine. Most vehicles manufactured since the mid 1970s have thermostatic air intake systems that regulate the temperature of… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”