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buna    
n. 合成橡胶之一种

合成橡胶之一种

buna
n 1: made by polymerizing butadiene [synonym: {buna}, {buna rubber}]

Buna \Buna\ n. [trademark.]
a synthetic rubber made by copolymerizing butadiene with
another substance such as acrylonitrile or styrene.

Syn: buna-S. [WordNet 1.5]


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  • Understanding the Composition of a Nitrile (Buna-N) Rubber Compound
    Acrylonitrile Butadiene Rubber (NBR) or Nitrile rubber is one of the most popular compounds for automotive applications Here's what you need to know about the compound
  • Nitrile (Buna-N) - Seal Design Guide | Apple Rubber Products
    Material Selection Guide Nitrile (Buna-N) Trade Names Perbunan — Arlanxeo Nipol — Zeon Krynac — Arlanxeo ASTM D1418 Designation NBR ASTM D2000 SAE J200 Type, Class BF, BG, BK, CH Apple Compound Designation BN Standard Color Black Description Presently, the seal industry's most widely used and economical elastomer, Nitrile combines excellent resistance to petroleum-based oils and fuels
  • Everything You Need to Know About Buna O-Rings
    Before using Buna-N for your application, here’s everything you need to know about it Key Advantages Buna o-rings feature a wide variety of benefits that make them highly desirable for many applications Buna-N offers excellent chemical resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohol
  • How to Make the Right Choice Between Viton® and Buna O-Rings
    Viton® and Buna are two of the most commonly used elastomers for rubber seals and sealing devices These materials are known to be universal o-rings that offer excellent resistant properties and reliability While there are many similarities between the Viton® and Buna o-rings, such as compressio
  • What Is Nitrile? A Guide to Nitrile O-Rings and Seals
    Nitrile, commonly known as NBR or Buna-N, is a synthetic rubber composed of acrylonitrile (ACN) and butadiene Based on the formulated ratio of ACN and butadiene, the working properties of nitrile seals may vary For example, lower ACN content equates to lower glass transition temperature, while hig
  • 6 Material Selection Guide - Apple Rubber
    What is “Rubber”? “Rubber” refers to elastomeric compounds that consist of various monomer units forming polymers that are heat cured (vulcanized) Polymers are long molecular chains and are derived from the Greek “poly” (many) and “meros” (parts) The base monomer or monomers is used to classify the type of rubber, for example: Nitrile, Silicone or Neoprene
  • AS568 Standard O-Rings - Apple Rubber
    Standard O-Rings AS568 Simplified Reference: AS568 is the SAE Aerospace Size Standard for o-rings The standard purpose is to specify inside diameters, cross-sections, tolerances, and size identification (dash numbers) for o-rings Apple Rubber catalog numbers are identical to the AS568 number system All sizes are listed by ascending inside diameter (I D ) in fractional and decimal sizes
  • O-Ring Chemical Compatibility Guide, Engineering Tool - Apple Rubber
    An interactive O-Ring Chemical Compatibility lookup tool is a guide only No two situations or installations are the same But this will get you started
  • ISO 3601 Metric Size O-Rings - Apple Rubber
    Standard O-Rings ISO 3601 Simplified Reference: ISO 3601 is the SAE Aerospace Size Standard for o-rings The standard purpose is to specify inside diameters, cross-sections, tolerances, and size identification (dash numbers) for o-rings Apple Rubber catalog numbers are identical to the ISO 3601 number system All sizes are listed by ascending inside diameter (I D ) in fractional and decimal
  • 9 Sizes How to Order - applerubber. com
    Examples: 110 (dash num Non-Standard If you were to order 25,000 pieces with an internal diameter of 144" and a cross section of 025" 70 durometer Buna-N your order would read: 25,000 144 I D x 025 C S 70BN *Note: The current revision of the Standard is “C” but it changes periodically





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