Hydrophilic / Hydrophobic Fumed Silica

Hydrophobic silicon dioxide is specially treated silicon dioxide. It is mainly prepared by reacting general hydrophilic silicon dioxide with silane coupling agent and other treatment agents under appropriate conditions according to the different characteristics of various industries to obtain a solid powder silicon dioxide with polysiloxane grafting on its surface. Its hydrophobic contact angle can reach 70 to 150. It not only has good hydrophobicity, but also has defoaming, thickening It has good leveling property, anti sedimentation and other functions, and can be used in textile dyeing and finishing, defoamer, lubricating oil, unsaturated polyester resin, powder fire extinguishing agent, silicone rubber and other products.



Specification application

GW-100, GW-150 defoamer, liquid silicone rubber and other industries

PG-800 defoamer, textile dyeing and finishing, grease and other industries

SW-350-H, SW-350-D defoamer, grease and other industries

Other industries with special treatment of battery partition, polishing materials, powder fire extinguishing agent, etc

 

(After burning)%	>=98	>=98	>=98	>=98	>=98
DBPOil absorption value cm3/g	2.4-2.5	3.0-3.3	2.9-3.2	3.2-4.2	2.0-3.5
pH value	6-8	6-8	6-8	6-8	5-8
Heating loss%	<=5	<=5	<=5	<=5	<=5
Ignition loss  %	<=6	<=6	<=6	<=6	<=6
Porosity ml/g	1.5	1.8	2	1.8	1.8
Surface treatment	without	without	without	Inorganic	Inorganic

my company
Shanghai Yinghe Industrial Co., Ltd. is a modern private enterprise. The factory is located at the junction of Jiangxi and Hunan provinces, beside National Highway 320, close to Shanghai-Kunming Expressway and Zhejiang-Jiangxi Railway. One of the silica companies. At present, it is a professional manufacturer of ultra-fine powder materials. Its leading product silica series is widely used in ordinary rubber, plastics, special rubber, paint, ink, adhesives, defoamers, grease, toothpaste, papermaking, pesticides, Food, feed, medicine and other fields. After years of hard work, the company has passed ISO9001 quality management system certification. And successfully developed a series of high-quality food anticaking agents, clarifying agents, toothpaste grinding aids, pharmaceutical excipients and other series of silica. The company adheres to the enterprise spirit of "integrity, innovation, unity, and forge ahead", uses advanced management concepts to form a scientific management structure and an excellent corporate team, based on production technology, and seeks development by quality. There are currently five senior engineers. Sixteen technicians above the intermediate level have established a complete and standardized quality assurance system and a complete R&D system. Over the years, the company has actively explored the market, and its products have been exported to more than 30 provinces and cities, Southeast Asia, the Middle East, Europe and the United States and other overseas markets. At present, it has enjoyed a high reputation in the domestic market and continues to strive to expand overseas markets. The Shanghai subsidiary was established in 2014 and is located in Shanghai, the capital of international trade. It has very convenient shipping resources. We sincerely invite businessmen from all over the world to cooperate sincerely and seek common development! 
FAQ
- 1. Q: What's your MOQ(minimum order quantity)?
A: 200kg.
- -2. Q: What's your packing methods?
A: 10 kg fumed silica packed in multi-layer paper bag. 20 bags in one pallet.
- -3. Q: What's your delivery time?
A: 8-10days after receiving the deposit .
--4. Q: Are you a manufacturer or a trader?
A: We are a silica manufacturer for more than 30 years
--5. Q: Where is your factory?
A: Our factory is located in the Industrial Park of Wanzai County, Jiangxi Province. We set up an international trade department in Shanghai.
- -6.Q: Do you attend the fair of chemical industry?
A: Yes. We attend the industry fair every year.
- -7.Q: Do you provide samples for testing?
A: Yes. (200g-500g)sample is available for your inspection, but the freight needs to be charged by customer(Recommended DHL)