English name: Liquid nitrate butadiene rubber (LNBR)

Chinese alias: New liquid nitrile rubber

CAS RN: Provisional

Appearance: Light yellow viscous liquid with no visible impurities

Physical and chemical properties of new liquid nitrile rubber

Physical properties: The new liquid nitrile rubber (LNBR) is a low relative molecular weight copolymer synthesized using a new chain transfer agent, with butadiene and acrylonitrile as monomers. It is a light yellow or brown viscous liquid with a foul odor and slight fluidity at room temperature. The butadiene in the molecular chain of the new liquid nitrile rubber is mainly in the trans 1,4-structure, with butadiene and acrylonitrile arranged randomly. Due to the presence of polar group CN in the molecular chain, it is soluble in polar solvents such as ketones and aromatic compounds. The relative molecular weight of the new liquid nitrile rubber is generally below 5000, so it has good processing performance and is convenient to use. LNBR can compensate for the shortcomings of solid nitrile rubber in its application range, and is a new type of low molecular liquid toughening, plasticizer, and rubber softener, with wide applications and development prospects.

Structural formula:

Technical indicators

Brand

Combined with acrylonitrile (%)

Ash content (%)

Volatile matter (%)

Viscosity (40 ℃, Pas)

Liquid Nitrile Rubber-40 (TY-LNBR-40)

30-34

≤ 1

≤ 1

30.0-80.0

Liquid Nitrile Rubber-26 (TY-LNBR-26)

24-28

≤ 1

≤ 1

15.0-50.0

Product Usage

The new liquid nitrile rubber has good oil resistance, adhesion, weather resistance, and low air permeability, and can be used as an adhesive (epoxy resin toughening agent), sealing and filling material, coating (coating), rubber modifier, etc., with good application effects.

packing of products

20kg iron drum packaging or 50kg closed polyethylene white plastic drum packaging, with a drum mouth diameter not less than 100mm.

Storage method

Store in a cool and ventilated place with a closed seal, and the storage temperature range should be (-20~38) ℃. The storage period of guaranteed products is 12 months. After the storage period expires, samples should be taken again for retesting. After passing the test, they can still be used.

Product transportation

During the transportation of the product, it should be avoided from rain, dampness, exposure to sunlight, and should not be mixed with strong oxidants.