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Calcium Sulphate Whisker For friction materials

Inquiry
  Post Date: Jul 19,2013
  Expiry Date: Jul 19,2014
  Detailed Description: Cas No. :7778-18-9 Quantity: 5000Metric Tons
Specs:NP-M01
Price:1600 USD Metric Tons
Payment Method: T/T,L/C

Date Sheet

Appearance: White Powder

Whiteness: > 90%

Fineness: 80-120 mesh

Definitely density:2.69g/cm3

Bulk Density: 0.3-0.65g/cm3

Content: CaSO4

Purity:≥95%

Particle Shape: Needle Shape Fiber

Length:10 – 200 µm

Diameter:1-4 µm

L/D Ratio: 40-80  (90%)

Moisture Content: ≤1.5%

Heat Resistance: 1000°C

Melting Point:1450°C

PH: 7+/- 0.5

Package: 25kg/bag ( inner plastic back plus kraft paper bag outside)

 

 

Example 6: Calcium Sulphate Whisker applications in the friction material

Formula (percentage by weight):Generally dosage of calcium sulphate whisker in the friction material is 8 ~ 15%, up to a maximum of 20%.

Effect:After adding calcium sulphate whisker in the friction material, the shear strength of the material and the impact strength improve obviously, friction coefficient under high temperature environment and well wear resistance, and environmental protection (instead of asbestos, whisker is non-toxic itself, brake dust less, low noise, lower cost etc. ).

 

Features:

1, CaSO4 Whisker is eco-friendly selected from food-grade gypsum.

2, Soften the friction material.

 

3. Stabilizing friction coefficient.

 

4. High wear resistance and heat resistance.

 

5. Reducing shock,lower noise,absorbing micro-wave.

 

6. Without poisonous ash when braking.

 

7. Extending  the life circle.

 

8. Reducing the dosage of resins and expensive whisker to improve the competitiveness of final products.

  CAS Registry Number:

7778-18-9
  Synonyms: ;anhydrouscalciumsulfate;anhydrousgypsum;anhydroussulfateoflime;calciumsulfate(1:1);calciumsulfate(anhydrous);calciumsulfate(caso4);calciumsulfate,anhydrous;
  Molecular Formula: CaSO4
  Molecular Weight: 136.1417
  Molecular Structure: 7778-18-9 Calcium sulfate
  Hazard Symbols:  T:有毒物质‖N;
  Risk Codes: R49:吸入会致癌‖R42/43;
  Safety Description: S36/37:穿戴合适的防护服和手套‖S24/25;

  Company: SHANGHAI NP TRADE COMPANY LIMITED     [ China ]        
  Contact: Jelly
  Tel: 86-21-54938400
  Fax: 86-21-54135114
  Email: jelly@np-whisker.com
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