|
ซิงก์สเตียเรต, 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 = 10kg 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 10kg/bag
แบเรียมสเตียเรต, Barium Stearate, packing 15kg/bag
แคลเซียมสเตียเรต, Calcium Stearate, packing 10kg/bag
เลดสเตียเรต หรือ ตะกั่วสเตียเรต, Lead Stearate, packing 20kg/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
Email2 : info@thaipolychemicals.com
|
