Polyisobutylene
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- Category :
Polymers
- CAS NO : 9003-27-4
- EC NO :
- Molecular Formula : (C4H8)n
- Main Specifications : MV Between 11000- 65000
- Synonyms : poly(isobutylene) standard 856000;iso-Butylene resin (liquid);iso-Butylene resin;Butyleneresinliquid;ButyleneresinsolidlowMWt;ButyleneresinsolidmedMWt;ButyleneresinsolidhighMWt;Polyisobutene;Polyisobutylene;
Package: 20KG antiseize carton
Uses : in butyl sealant ,chewing gum base,dispersent in the lubricating oil,asphalt modifier
Molecular Structure:
Product description:
Shandong Hongrui Petrochemical Company specializes in the production of low and medium molecular weight poly-isobutylene through various advanced production equipment. We cooperate with domestic research institutes and national key laboratories, using many advanced manufacturing processes to synthesize poly-isobutylene. We operate in strict compliance with ISO9000 quality management system, ensuring our stable, reliable and outstanding products.
Our products have high performance and characteristics of narrow distribution of molecular weight, low content of monomer and polymer, and stable properties. Especially the food grade poly-isobutylene, as a food additive, can meet the requirements of manufacturing and hygienic license for food additive in China.
HRD Low Molecular Poly-isobutylene
●Specifications & Technical Index
Grade viscosity Average Molecular Weight Kinetic Viscosity Dynamic Viscosity
HRD-100 11000-13000 3.00×106-5.40×106 1.0×104-2.1×104
HRD-150 13000-15000 5.40×106-1.25×107 2.1×104-3.53×104
HRD-250 20000-30000 5.75×107-3.00×108 1.5×105-1.7×106
● Physical and Chemical Properties:
This product is a kind of colorless or yellowish, transparent semisolid substance, nontoxic and odorless.
The product has nice chemical stability and good resistance to heat, oxidation, ozone, acid and alkali, UV ray and weather etc. Its volume specific resistance is high and its expansion coefficient is small. It contains no dielectric and has excellent electric insurability and there is no residue after heating. It is well compatible with polyethylene and paraffin wax, etc. It is soluble in organic solvents like gasoline and benzene but not water and alcohol types of solvents, with nice shearing stability.
● Main Applications:
1.Lubricating Oil
Poly-isobutylene has stable chemical property, and contains fewer impurities than mineral oil. It can be used either as lubricating oil separately or as composite lubricating oil, thus it is obvious that poly-isobutylene has a brighter development prospect in the lubricating oil industry.
2.Electric Insulation
Poly-isobutylene has an excellent electric insulation property, can be used as the electric insulating material.
3.Adhesive
Poly-isobutylene can be used as a binding agent for sticker and pressure sensitive adhesive.
●Package and Transportation:
This product does not belong to dangerous articles; medium molecular weight poly-isobutylene can be packed in 200L galvanized drum with a net weight of 165KG
HRD Medium Molecular Poly-isobutylene (Industrial Grade)
●Specifications & Technical Index
Grade Volatile Staudinger Index viscosity Average Molecular Weight Antioxidant
HRD-350 ≤1.0 21.5-26.0 30000-40000 無
HRD-450 ≤1.0 26.5-31.0 40000-50000 無
HRD-550 ≤1.0 31.5-36.0 50000-55000 無
HRD-650 ≤1.0 35.5-39.0 60000-70000 無
● Physical and Chemical Properties:
The product is a kind of yellowish transparent semi-solid substance, nontoxic and odorless. It has good chemical stability and resistance to heat, ozone, acid and alkali, UV ray, and weather, etc. It has high electric volume resistance, low expansion coefficient, no dielectric medium, excellent electrical insulation no residues after pyrolysis, and good compatibility with polyethylene and paraffin wax, etc. It is soluble in organic solvents such as gasoline and benzene etc., but not in water and alcohol type solvents, and has good shearing stability.
● Main Applications:
1.Sealing Compound: Poly-isobutylene is suitable for producing various sealing agents and hollow glass sealing compounds to increase the flexibility and penetrability of products for its excellent features and properties, such as atmosphere resistance, aging resistance, weather resistance and impermeability to water vapor.
2.Rubber Modification: Poly-isobutylene has excellent aging resistance and plasticity, can be used to modify the rubber. It is now widely used in high-voltage insulating and self-adhesive tapes, and rubber strips and other manufacturing fields.
3.Paraffin Wax: Poly-isobutylene, after being mixed with paraffin wax or microcrystal wax, can increase its tensile property and enhance the brittleness of its products; especially when used for packaging frozen food, its flexibility and acid resistance can be increased.
Printing ink: Poly-isobutylene can act as the thickener and dispersant when added into printing ink, such as printing pulpy inks, polyethylene cyclic photocopy, printing ink; it can also has a thickening function in the printing ink, to prevent air crack.
4.Lubricant Grease: Adding in lubricant grease, poly-isobutylene can improve the viscosity and extreme pressure resistance of its products.
Others:
High molecular material modification, viscosity increasing agglomerate for tensile twisting film, damping grease and so on
●Packaging and Transportation:
This product doesn’t belong to dangerous articles. Medium molecular weight poly-isobutylene can be packaged in 20kg carton with stick resistant lining paper or 50kg fiber drum.
HRD Medium Molecular Poly-isobutylene (Food Grade)
●Specifications & Technical Index
Grade Volatile StaudingerIndex Viscosity Average Molecular Weight Antioxidant As, mg/kg (Calculated with As) Heavy Metals, mg/kg (Calculated with pb) Pb, mg/kg (Calculated with pb)
HRD-S350 ≤0.3 21.5-26.0 35000±5000 No ≤3.0 ≤20.0 ≤3.0
HRD-S450 ≤0.3 26.5-31.0 45000±5000 No ≤3.0 ≤20.0 ≤3.0
HRD-S550 ≤0.3 31.5-36.0 55000±5000 No ≤3.0 ≤20.0 ≤3.0
HRD-S650 ≤0.3 35.5-39.0 65000±5000 No ≤3.0 ≤20.0 ≤3.0
●Physical and Chemical Properties:
Food grade poly-isobutylene is transparent and odorless semisolid.
●Applications:
1.Chewing Gums: Poly-isobutylene can improve the gum quality when mixed with wax paraffin wax and resin; it can also make the gum more flexible and stable, maintaining good hydrophobic property and excellent film-forming property.
Food Binding Agent: mixed with various adhesives (including pressure sensitive adhesive), poly-isobutylene has the functions of adhesive bonding and modification.
Poly-isobutylene has a hydrophobic property and can keep low-toxicity absorption and high-temperature stability when mixed with hydrophobic substances (CMC, pectin, gel). It also adjustable in hardness and has germ resistance.
Food Packing: Poly-isobutylene can be mixed with various paraffin waxes and high molecular polymers to serve as the releasing agent of packaging films, for example, polymer of poly-isobutylene and paraffin wax can be used as the packaging films for cheese. Poly-isobutylene can improve the low-temperature stability and water resistance of product.
2.Food grade Hot Melt Adhesive: Poly-isobutylene has a function of plasticization, and can be used for thermal-plastic rubber, etc.
Medicine plaster: Food grade poly-isobutylene is now widely used in the field of medicine plaster. It has nice compatibility with both western medicines and traditional Chinese medicines because of its unique net structure – long chain and macro molecule. With the properties, including non-irritability, repeated pulling and sticking, and non-hair collecting etc., food grade poly-isobutylene has developed into a leading material for medicine plasters.
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