MBS is a most major impact modifier with light yellow or orange crystal / granular. MBS is a copolymer of three monomers, methyl methacrylate, butadiene and styrene. No poison with a little odor of ammonia. The density is 1.34-1.40. Slightly soluble in benzene, ethyl alcohol and carbon tetrachloride, insoluble in water,ethanol, butanone, chloroform swelling. Solubility parameter is 9.4-9.5, close to the solubility parameter of PVC, has good compatibility with PVC.
Other Name: NOBS(MBS) / N-Oxydiethylent-2-benzothiazole sulfonamide
Molecular Formula: C14H8N2S4
Molecular Weight: 253.35
Specification of MBS
Light yellow or orange crystal
Light yellow or orange granular
Initial M.P. (Min)≥℃
Loss on drying (Max)≤℃
Granular diameter mm
Feature of MBS
Good impact properties, good transparency, light transmittance up to 90%
Less impact to the tensile strength and elongation at break
Not only toughening, but also maintaining the transparency of PVC maxium.
Good chemical stability and thermoplasticity.
Promoting plasticization and improving the surface finish of products
In the same amount of circumstances, can greatly enhance the toughness of the products
Application of MBS
1. MBS used in PVC films and sheets
2. MBS used in PVC bottle pellets, twisted conjunctiva
3. MBS used in PVC high-impact opaque products
4. MBS used in manufacturing of tires, shoes and belts
5. MBS used in food and drug packaging
6. MBS used in other rubber additive
MBS is packing in 20kg bag
MBS should stored in dry and cooling place with good ventilation, avoiding exposure of packaged product to direct sunlight.