Composition, diameter and appearance of glass chopped strands:

Composition, diameter and appearance of glass chopped strands: composition, diameter and appearance of glass chopped strands:
We know the short-cut fiber for thermoplastics. Our company supplies the alkali-free glass fiber chopped strands at a low price of 4,200 yuan/ton. The quantity is large and the price is good. We can send samples free of charge by telephone. Our company is located in the developed transportation area of ​​central Shandong Province. Very convenient, manufacturers and distributors across the country are welcome to purchase goods.
We specialize in the supply of chopped glass fiber, non-alkali glass chopped strands, and today we share with you the knowledge of alkali-free fiberglass chopped strands. See below for details:
Composition of glass fiber chopped strands:
This classification is mainly used for the classification of continuous glass fibers. Generally, it is distinguished by different alkali metal oxide contents, and alkali metal oxides generally refer to sodium oxide and potassium oxide.
In the glass raw material, it is introduced by a substance such as soda ash, thenardite, feldspar or the like. Alkali metal oxide is one of the main components of ordinary glass, and its main function is to lower the melting point of glass. However, the higher the content of alkali metal oxide in the glass, the lower its chemical stability, electrical insulation properties and strength. Therefore, for glass fibers of different uses, different glass components containing alkali are used. Therefore, the alkali content of the glass fiber component is often used as a marker for distinguishing continuous glass fibers for different purposes.
According to the alkali content in the glass component, the continuous fibers can be classified into the following types:
Alkali-free fiber:
The R2O content is less than 0.8% and is an aluminoborosilicate component. Its chemical stability, electrical insulation properties and strength are very good. Mainly used as electrical insulation materials, glass fiber reinforced materials and tire cords.
Medium alkali fiber: It is a kind of soda lime silicate component. The content of R2O is 11.9%-16.4%. Because of its high alkali content, it can not be used as electrical insulating material. However, due to its chemical stability and strength, it is generally used as a latex cloth, a woven fabric substrate, an acid filter cloth, a window material substrate, etc., and can also be used as a glass fiber reinforced material that does not require strict electrical properties and strength. This fiber is relatively low in cost and has a wide range of uses. Such as: composite cable bracket High alkali fiber:
A glass component having an R2O content equal to or greater than 15%. Such as glass fiber drawn from raw materials such as broken flat glass, broken glass, etc., all belong to this category. It can be used as waterproof and moisture-proof materials for battery separators, pipe wrapping cloths and mats. Special glass fiber: high-strength glass fiber composed of pure magnesium aluminum silicon ternary, high-strength high-elastic glass fiber of magnesium aluminum silicon; chemically resistant glass fiber of silicon aluminum, calcium and magnesium; aluminum fiber; high silicon oxyfiber; quartz fiber Wait.
diameter:
The glass fiber monofilament is cylindrical, so its thickness can be expressed by diameter. Usually, depending on the diameter range, the drawn glass fibers are divided into several types (the diameter values ​​are in um):
Crude fiber: its monofilament diameter is generally 30um
Primary fiber: its monofilament diameter is greater than 20um;
Intermediate fiber: monofilament diameter 10-20um
Advanced fiber: (also known as textile fiber) has a monofilament diameter of 3-10um. Glass fibers having a monofilament diameter of less than 4 um are also referred to as ultrafine fibers.
The different diameters of the monofilaments not only affect the properties of the fibers, but also affect the production process, yield and cost of the fibers. Generally, 5-10 um fiber is used as a textile product, and 10-14 um fiber is generally suitable for roving, non-woven fabric, chopped fiber mat, and the like.
Exterior:
The appearance of the glass fiber, ie its form and length, depends on its mode of production and its use. Can be divided into: continuous fiber (also known as textile fiber): In theory, continuous fiber is an infinite continuous fiber, mainly made by the leakage plate method, after textile processing, can be made into glass yarn, rope, cloth, Belt, roving and other products.
Fixed length fibers: which are limited in length, generally in the range of 300-500 mm, but can sometimes be longer, such as substantially messy long fibers in the mat. For example, long cotton made by steam blowing, after being broken into yarn, is only a few hundred millimeters in length.
Other products such as stick yarn and primary roving are used for making yarn or mat.
Glass wool: It is also a fixed length glass fiber with a short fiber, generally less than 150 mm or less. In the form of fluffy tissue, similar to cotton wool, it is also called short cotton, mainly for heat preservation, sound absorption and other purposes. In addition, there are chopped fibers, hollow fibers, glass fiber powders, and fine fibers. Http://news.chinawj.com.cn Submission:

1-Hydroxy Ethylidene-1,1-Diphosphonic( HEDP )

Description: 1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP)

Physical and chemical property: crystal powder, suitable for usage in winter and freezing districts.

Molecular Formula: C2H8O7P2

CAS No: 2809-21-4

UN No:3265

CLASS: 8.1

Specifications:

Items	Index
Appearance	Clear, Colorless to pale yellow aqueous solution	White crystal powder
Active content (HEDP)%	60.0 min	90.0 min
Active content (HEDP·H2O)%	58-62	98.0 min
Phosphorous acid (as PO33-)%	1.0 max	0.8 max
Phosphoric acid (as PO43- )%	0.6 max	0.5 max
Chloride (as Cl-)%	0.01 max	0.01 max
pH (1% water solution)	2.0 max	2.0 max
Density (20℃)g/cm3	1.40 min	-
Fe, mg/L	10.0 max	5.0 max
Colour APHA (Hazen)	10.0 max	-
Ca sequestration (mg CaCO3/g)	500.0 min

Packed in 250kg plastic drum,20fcl=20mts.

Application: HEDP is used as scale inhibitor, deflocculant, sequestrant, water stabilizer in circulating cool water system, oil field and low-pressure boilers in fields such as electric power, chemical industry, metallurgy, fertilizer, etc under condition of high temperature and high pH value. HEDP is also used as detergent for metal and nonmetal. In dyeing industry, HEDP is used as peroxide stabilizer and dye-fixing agent; In non-cyanide electroplating, HEDP is used as chelating agent.

1-Hydroxy Ethylidene-1,1-Diphosphonic(HEDP) CAS NO:2809-21-4

1-Hydroxy Ethylidene-1,1-Diphosphonic,HEDP, C2H8O7P2,2809-21-4,Etidronsaeure,Acetodiphosphonic acid,ethane-1-hydroxy-1,1-diphosphonic acid,EHDP

Jinan Forever Chemical Co., Ltd. , http://www.jinanforever.com