Acicular Wollastonite

Product Specifications

Prod Model:	Acicular wollastonite
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Classification:	Rare Metal

Product Description

Acicular Wollastonite Supplier            
Other name: Calcium metasilicate
MF: CaSiO3
MW: 116
Appearance: white powder or milk white
 
Packaging Detail: 25kg/bag, 50kg/bag
Type: Agrochemical Intermediates,Pharmaceutical Intermediates
 
Usage                                                                            
1. It can be used in ceramics;
2. it can be used as a filler for rubber and paper industry; plastic industries; a coating for welding rod, etc.
 
Form: needle, powder
Size: 80-1250mesh
 
Specificaiton                                                               

Item	Standard
SiO2	49% min
CaO	43% min
Al2O3	0.7% max
Fe2O3	0.2% max
P	0.01% max
S	0.01% max
PH	7-9
Loss on ignition	3% max
whiteness	85-92

 
Acicular Wollastonite Types:                                               
F Series:

Item	SiO2 Min	CaO Min	Fe2O3 Max	L.O.I Max	Sedimentation Min (ml/30g)	Whiteness Min	L/D	Application
F-60	49	44	0.3	2.5	60	78	18:1	Construction materials (Si-Ca board, Fire proof board) Friction materials (Brakes, Clutch)
F-70	49	45	0.3	2.5	70	78	18:1
F-75	49	46	0.3	2.5	75	78
F-80	49	46	0.3	2	80	78	20:1
F-85	50	47	0.2	2	85	80	20:1
F-90	50	47	0.2	2	90	80	22:1

 
G Series: 

Item	SiO2 Min	CaO Min	Fe2O3 Max	L.O.I Max	Sedimentation Min (ml/30g)	Whiteness Min	L/D	Application
G-50	48	44	0.5	6.0	50	70	12:1	Construction materials, fiber cement products (Si-Ca board, Fire proof board) Friction materials (Brakes, Clutch)
G-60	48	42	0.5	5.0	60	70	15:1
G-70	48	45	0.4	4	70	73	15:1
G-80	48	45	0.4	3.0	80	73	18:1

 
Fine Acicular Wollastonite Powder Products: 

Item	SiO2 Min	CaO Min	Fe2O3 Max	L.O.I Max	(ml/30g) Sedimentation	Whiteness Min	L/D	Application
400mesh	46	45	0.30	4	54	85	15:1	As the filler applying in paper making, coatings, paints, rubber and plastic industry
600mesh	50	46	0.30	2.0	60	88	10:1
800mesh	50	46	0.15	2	130	90	8:1
1250mesh	50	46	0.15	2	150	90	7:1

 
 
 
Application:                                              

1. The application of needle like silica fume in the field of building materials

Acicular wollastonite powder by the acicular characteristics and non-toxic, harmless, odorless advantages, gradually replaced the asbestos, glass fiber and fiber talc fiber materials, greatly reducing the environmental pollution, become the new raw material of environmental protection building materials in the new century. Our needle like wollastonite powder series after special processing technology, the long diameter ratio was kept in 12-20:1) between and application in the field of building materials, fiber cement products can improve product strength, hardness, bending fracture and tensile stretch and corrosion resistance and insulation, thermal insulation etc. performance. Products are widely used in the fire board, calcium silicate board, acid and alkali resistant wall panels and other industries.

Applicable products: F series G series

2. The application of needle like silica fume in the field of friction material

Acicular wollastonite powder is good friction material, has low cost, high benefit, high quality reinforcing performance. Use to roller, brake and clutch surface and sand paper, can enhance the durability, abrasion resistance, stability and structural and chemical resistance. Products through the trial, does not produce noise, brake flexible, low friction, performance stability, does not contain steel fiber, with needle like silica fume to replace asbestos, can reduce the cost of more than 1000 yuan per ton, profit increased by 20%, more important is conducive to environmental protection.

Use products: F series G series

3. The application of silica fume in paint and paint

Wollastonite high whiteness, needle like crystals and lower oil absorption rate to replace some expensive titanium dioxide powder and lithopone, find a way to reduce the cost for the paint industry, as filling material wollastonite in paint, paint industry "Union agent" the reputation of the United States, it is biased to the alkaline characteristics, more suitable for used in polyvinyl alcohol and propylene latex paint, especially for primer and closed primer effect is more ideal.

Applicable products: Superfine acicular wollastonite powder series

4. The application of silica fume in rubber and plastics

Acicular wollastonite powder is a good raw material for new rubber field. Do white auxiliary strong filler, instead of the lithopone and part of titanium dioxide and zinc oxide semi auxiliary strong carbon black can improve product resistance to aging and wear resistance, widely used in the industrial rubber shoes, hose, belt and other products; wollastonite as anhydrous attract filler can also be used as filling agent used in vinyl plastisol, can also be used for fear of wet nylon and urethane elastomers.

Applicable products: Superfine acicular wollastonite powder series

5, the application of silica fume in the paper field

The use of ultra fine powder of silica fume to make paper, paper has the advantages of waterproof, tear resistance and impact resistance, and the use of one ton of superfine powder can reduce the cost of nearly 500 yuan, especially to reduce the "black liquor" emissions, protect the environment.