Payment & Shipping Terms:
|Application:||It Is Suitable For The Production Of High Transparency Polypropylene.||Cas No:||135861-56-2|
|Melting Point (deg.C):||255-270||Purity (%) (HPLC):||99.0 Min|
|Packing:||5kgs Double Paper Bag||Shelf Life:||2 Years|
nucleating agents for plastics,
chemical auxiliary agent
Formula structure of Nucleating Agent for PP 135861-56-2:
Product description of Nucleating Agent for PP 135861-56-2:
|Chemical Name||1,3:2,4-Bis(3,4-Dimethylbenzylidene) Sorbitol|
|Othe Name||1,3:24-BIS (3,4-Dimethylobenzylideno) Sorbitol; DMDBS; Nucleating Agent; Bis(3,4-dimethylbenzylidene)sorbitol; Dimethyldibenzylidene Sorbitol;1,3:24- Bis (3,4-Dimethylobenzylideno)Sorbitol (DMDBS); Di-(3,4-dimethylbenzylidene)sorbitol; D-Glucitol, 1,3:2,4-bis-O-(3,4-dimethylphenyl)methylene-|
Physical property of Nucleating Agent for PP 135861-56-2:
|Appearance||White crystalline powder|
|Purity (HPLC) %||99.0 min|
|Melting point (centigrade)||255-270|
|Dry weight loss %||0.5 max|
Packing and storage of Nucleating Agent for PP 135861-56-2:
5kgs double paper bag, Keep in a tightly closed container, stored in a cool, dry, ventilated area.
Three generations of products of organic nucleating agent
The first generation is a non-substitutable bifurylidene (DBS), such as Gelalld of the new Japan chemical company and Millad3905 of Milliken in the United States. There are also many factories in China. DBS modified PP transparency, surface gloss and physical mechanical properties are all good. It is widely used in the pharmaceutical industry. But it has a poor heat resistance and stinks at higher temperatures, limiting its use.
The second generation product is introduced on the basis of the first generation of substitute groups. Can be alkyl substituents, oxygen and halogen alkane, etc., it can be 1, 2, 3 substituent, can be the same or different substituents. Its representative varieties are EC-4 of Japanese EC-4. Millad3940 of Milliken of America, nc-4 of Japan east industry corporation, etc.
The typical representative of the third-generation sorbitol nucleating agent is Milliken's Mi11ad3988, which can greatly improve the transparency of PP products and adapt to various processing technologies, without special smell and non-toxic. Now it has passed the FDA certification, and the modified products are mainly used in food containers, storage capacity, beverage bottles, packaging materials and other materials.
In addition, rosin nucleating agent is developed, which is a new nucleating agent for polyolefin. The nucleation efficiency is high, and the properties of crystalline polyolefin resin can be greatly improved. The dosage of rosin type nucleating agent usually accounts for 0.05% ~ 0.8% of polyolefin resin. The technical indexes of domestic products have reached or close to the level of similar products abroad. In the polyolefin using rosin nucleating agent, calcium stearate has good synergistic effect. As based on polyolefin resin, 0.2% of the nucleating agent and 0.05% of the calcium stearate used in combination, with the same nucleating agent added to the polyolefin, especially PP resin compared separately, fog degree from 20% to 15%, and temperature from 125 ℃ to 125 ℃, the bending modulus varying from 1060 mpa to 1060 mpa, gloss change from 100% to 105%. At the same time ask the synergistic effect of surface additive improves the efficiency of the use of nucleating agent, with economic measure can reduce additive costs 15% ~ 15%, sometimes, with the effect of the three components distribution than 2 components distribution effect is better.
It is important to note that the nucleation rate of different nucleating agents is different, so there is a difference in the performance of the product. In addition, the inappropriate use of nucleating agent can also cause resin in other ways, such as the extensive use of sorbitol benzylidene derivatives, can cause a few not melt transparent agent with white spots appeared in the products, affect the beauty products.