Zinc Stearateซิงก์สเตียเรต, ซิงก์เซียมสเตียเรท, Zinc Stearate
ซิงค์สเตียเรต (Zn(C18H35O2)2) เป็นเกลือสังกะสีที่กันน้ำได้และไม่ละลายในโพลาร์โซลเว้นท์ อาทิ แอลกอฮอล์และอีเทอร์ แต่จะละลายในอะโรมาติกไฮโดรคาร์บอน (เช่น เบนซีนและคลอริเนตเตดไฮโดรคาร์บอน) เมื่อถูกความร้อน ซิงค์สเตียเรตเป็นสารถอดแบบที่มีประสิทธิภาพดีที่สุดในบรรดาโลหะสังกะสีทั้งหมด โดยซิงค์สเตียเรตไม่มีอิเล็กโทรไลต์แต่มีปฏิกิริยาไฮโดรโฟบิก จึงถูกใช้เป็นสารหล่อลื่นในอุตสาหกรรมพลาสติกและยางได้เป็นอย่างดี
การใช้ประโยชน์: ใช้เป็นสารหล่อลื่นโลหะในกระบวนการผลิตยาง โพลียูรีเทน และโพลีเอสเตอร์ ใช้เป็นตัวกระตุ้นปฏิกิริยาในกระบวนการวัลคาไนเซชั่นยางโดยกำมะถันและยาสุก
Zinc stearate is a chemical substance that has a white, fluffy, powdered appearance and is usually formed from a combination of stearic acid and zinc oxide. It does not have a strong odor, although traces of a slight fatty acid scent are not uncommon. Zinc stearate is sometimes referred to as octadecanoic acid or zinc salt. Since zinc stearate will dissolve in alcohol and not in water-based liquids, it is used in many different kinds of commercial products. Its ability to repel water also makes it suitable for many different kinds of applications. Because of this versatility, zinc stearate is used by many different types of companies, from plastic industries to concrete manufacturers. When used to make plastics, zinc stearate is combined with a co-stabilizing soap called Ba-Cd to help stabilize the plastic. It does this by mixing with the liquid, which helps make the material more fluid — called a plasticizer. This same process is also used in the cosmetic industry to make different kinds of makeup. It also has a use in the paint industry where zinc stearate is added to lacquers and paint coatings for use as a flatting and sanding agent. For concrete manufacturing, it is mixed as an additive for waterproofing concrete; this same process is also used to waterproof other products, such as, rockwools, textiles, and paper products. Even when left in powdered form, it can be used as a drying lubricant or dusting agent for rubber products. Zinc stearate is a "zinc soap" that is widely used industrially. In this context, soap is used in its formal sense, a metal "salt" of a fatty acid. It is a white solid that repels water. It is insoluble in polar solvents such as alcohol and ether but soluble in aromatic hydrocarbons (e.g., benzene and chlorinated hydrocarbons) when heated. It is the most powerful mold release agent among all metal soaps. It contains no electrolyte and has a hydrophobic effect. Its main application areas are the plastics and rubber industry where it is used as a releasing agent and lubricant which can be easily incorporated. Zinc carboxylates, e.g. basic zinc acetate, adopt complex formulas, and are not simply dicarboxylates of zinc. Instead the formula for most zinc carboxylates is Zn4O(O2CR)6, consisting of a Zn4O6+ core with carboxylate ligands spanning the edges. Applications It is widely used as a release agent for the production of many kinds of objects rubber, polyurethane, polyester processing system, powder metallurgy. These applications exploit its "non-stick" properties. In cosmetics, zinc stearate is a lubricant and thickening to improve texture. It is an "activator" for rubber vulcanization by sulfur and accelerators. As discovered in the early days of vulcanization, zinc has a beneficial effect on the reaction of the sulfur with the polyolefin. The stearate is a form of zinc that is highly soluble in the nonpolar medium of the polyolefins. Being lipophilic, it functions as a phase transfer catalyst for the saponification of fats
Zinc Stearate is a white coloured poweder. It is insoluble in water, but dissolves well in aromatic compounds like benzene and chlorinated hydrocarbons on heating. In fact, zinc stearate repels water (hydrophobic). It is the zinc salt of stearic acid. It is insoluble in alcohol and ethers. It is a very powerful mold resease agent. Zinc stearate does not contain any electrolyte.
Zinc stearate is used in the pharmaceutical industry and the cosmetic products like face powder to improve the smoothness and adhesion. It is used in paint industry as a gloss imparting agent and a grinding agent. In plastic and rubber processing, zinc stearate is ued as a releasing agent and lubricant which can be easily incorporated. It is used as as a metal release agent in rubber, polyurethane and polyester processing system.
Suggested Application
In cosmetics like face powder & pharmaceuticals to improve properties of smoothness & adhesion. In paints. In plastic & rubber processing.
Applications of Zinc Stearate, Next 1. Combined with other metal soaps, it is used as a stabilizer in all nn-toxic applications in PVC processing ; i.e. film for food packaging , drinking straw, PVC materials for medical purposes. It gives good early color and lubrication. 2. Water proofing agent. 3. Anti-sticking agent and mould release agent in rubber industry. 4. Inpaint it finds applications; - In grinding of pigments / sanding sealer. - Flattening agent - give matte finish 5. In pigment concentrates, elastomers, polystyrene, and other light colored plastics. 6. Applications where Sulfur staining is not deaired.
Packing size = 10 kg in PP bags with inner PE liner บจก.ไทยโพลีเคมิคอล จำกัด ดำเนินธุรกิจ ผลิต และจัดจำหน่าย ซิงก์สเตียเรต, ซิงก์เซียมสเตียเรท, Zinc Stearate รวมทั้ง เมทัลสเตียเรต, Metal Stearate อื่นๆด้วย ได้แก่ แคลเซียมสเตียเรต, Calcium Stearate, packing 10 kg/bag แบเรียมสเตียเรต, Barium Stearate, packing 15 kg/bag แคลเซียมสเตียเรต, Calcium Stearate, packing 10 kg/bag เลดสเตียเรต หรือ ตะกั่วสเตียเรต, Lead Stearate, packing 20 kg/bag ซิ้งสเตียเรต หรือ สังกะสีสเตียเรต, Zinc stearate, packing 10 kg/bag
สอบถามข้อมูลเพิ่มเติมได้ที่ ฝ่ายขาย Thai Poly Chemicals Co., Ltd. บริษัท ไทยโพลีเคมิคอล จำกัด ที่อยู่36/5 ม.9 แขวง/ตำบลนาดี เขต/อำเภอเมืองสมุทรสาคร จังหวัดสมุทรสาคร รหัสไปรษณีย์74000 Tel.: 034854888, 034496284 Fax.: 034854899, 034496285 Mobile: 0824504888, 0800160016 Website : www.thaipolychemicals.com Email1 : thaipolychemicals@hotmail.com Eamil2 : info@thaipolychemicals.com
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