01 Qualities of polyisobutylene
Polyisobutylene is a colorless, odor-free, non-toxic isobutylene homopolymer. As a result of different preparation techniques and procedure problems, the molecular weight of polyisobutene differs in a vast array. When the molecular weight of many items reaches 10,000-200,000, it will certainly change from a viscous fluid to a sticky semi-solid, and afterwards to a rubber-like elastomer. Polyisobutylene is resistant to acid, antacids, salt, water, ozone and aging, and also has exceptional air rigidity and also electric insulation. It has great compatibility with wax, asphalt, polyethylene, etc
02 Features of high molecular weight polyisobutylene
High molecular weight polyisobutylene is a regular saturated linear polymer, its head team is -CH3, and its tail group is -CH2-C= CH2 or -CH= C-CH3. It has great warmth resistance, light resistance and ozone aging resistance, as well as has perfect chemical security. At space temperature, it is stable against water down antacids and also focused acid, antacid and also salt. Polymer polyisobutylene still has excellent water resistance and airtightness at higher temperature levels, as well as its dielectric properties are fairly exceptional. High molecular weight polyisobutylene is generally in the solid state.
03 Features of reduced molecular weight polyisobutylene
Reduced molecular weight polyisobutene (referred to as oligoisobutene) is a colorless, odor free, safe thick object, which is used in the fields of oil ingredients, adhesives, eating gum tissue ingredients, as well as mixing with other high polymers. The application of oligomeric isobutylene primarily depends upon its thickness behavior, thermal stability as well as electric insulation in many fields. Oligomeric isobutylene has great warm resistance, oxygen resistance, ozone resistance, ultraviolet resistance, acid resistance, alkali resistance and various other properties., Its development coefficient is small, it does not have damaging substances in the dielectric, and also it has outstanding electrical insulation.
Oligomeric isobutylene is a Newtonian liquid with a high viscosity index. It is suitable for thickness modification of oil products, 100% pyrolyzed without residual ash at high temperature, and also can be made use of as ash-free additive. Oligomeric isobutylene has great compatibility with polymer products, excellent compatibility with general non-polar compounds, and also has low-temperature dispersibility and high-temperature detergency. Reduced molecular weight polyisobutylene is normally viscous fluid or semi-solid.
04 Characteristics of ordinary reduced molecular weight polyisobutylene
The performance features of normal low-molecular-weight polyisobutylene are: the material of methylvinylidene team at the end of the chain in the particle is reasonably low. Even if of its reduced content, only “chlorination route” as well as “catalytic thermal addition path” can be made use of in the preparation of lubricating oil ashless dispersant, resulting in “chlorination route” although it can considerably enhance polyisobutylene (PIB) and also maleic acid The conversion rate of acid anhydride (MA) reaction is high, but the chlorine web content in the end product is high, which is much less as well as much less prominent with customers; while the “catalytic thermal enhancement route” has lengthy reaction time, low conversion price as well as corresponding increase in cost as a result of the presence of different levels and also other issues are restricted.
05 Features of polyisobutylene
Polyisobutylene is a colorless, unsmelling, non-toxic isobutylene homopolymer. As a result of various preparation methods and procedure conditions, the molecular weight of polyisobutene differs in a wide variety. When the molecular weight of many items reaches 10,000-200,000, it will certainly transform from a viscous liquid to a sticky semi-solid, and after that to a rubber-like elastomer. Polyisobutylene is resistant to acid, antacids, salt, water, ozone as well as aging, as well as has superb air tightness as well as electric insulation. It has excellent compatibility with wax, asphalt, polyethylene, etc.
