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Powdered Fast Curing Novolac Phenolic Resin Abrasion Resistance For Brake Lining Material

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Good quality Novolac Phenolic Resin for sales
Good quality Novolac Phenolic Resin for sales
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Powdered Fast Curing Novolac Phenolic Resin Abrasion Resistance For Brake Lining Material

China Powdered Fast Curing Novolac Phenolic Resin Abrasion Resistance For Brake Lining Material supplier

Large Image :  Powdered Fast Curing Novolac Phenolic Resin Abrasion Resistance For Brake Lining Material

Product Details:

Place of Origin: CHINA
Brand Name: HONINGLITE
Model Number: F2143-3

Payment & Shipping Terms:

Minimum Order Quantity: 1000KGS
Price: Negotiation
Packaging Details: 25KGS BAG
Payment Terms: T/T, L/C, D/P
Supply Ability: 5000TONS PRT MONTH
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Detailed Product Description
Appearance: Light Yellow Powder Package: 25kg Bag
Melting Point: 98-105℃ Gel Time: 80-100 S @150℃
Flow: 50-70 Mm @ 125℃ Application: Brake Linnings

Powdered Fast Curing Novolac Phenolic Resin for Brake Linings

Product description

Novolak Phenolic resin (two-step) is produced by condensing a molal excess of phenol  with formaldehyde to complete the reaction in the presence of an acid catalyst. This produces a thermoplastic resin. To cure this resin, a hardening agent is used, HMTA (or hexa). Hexa is made from ammonia and formaldehyde.Under heat and pressure, it yields ammonia and formaldehyde as methylene groups to cure the resin, hence the term “two-step,” because of the two formaldehyde additions. A novolak phenolic resin has an infinite shelf life under normal storage conditions.

 

Novolac Phenolic resin effortlessly penetrates and adheres to the structure of many organic and inorganic fillers and reinforcements, which makes it an ideal candidate for various end uses. A brief thermal exposure to complete the cross-linking or "thermoset" process results in attainment of final properties. The unique ability of phenolic resin to "wet out" and to cross-link throughout the fillers and reinforcements provides the means to engineer the desired mechanical, thermal, and chemically resistant properties.

 

 

Application

 

Novolac Phenolic resin is the choice for composite friction materials: the pads, blocks, linings, discs and adhesives used in brake & clutch systems that create retarding or holding forces with application against a moving part. The inherently heat resistant phenolic resin carbonizes and chars at extreme service temperatures, it does not melt and smear like other polymer matrices. This property results in restored friction properties when the material cools and "recovers" from hard braking. Formulas for phenolic composite friction materials are combinations of friction and wear-controlling agents, reinforcing fibers and inert fillers blended with un-cured phenolic resin in an amount necessary to bond the other ingredients in place with sufficient strength and resiliency when finished. Judicious selection of the types and amounts of raw materials used allows for the optimization of performance with cost and consistency                                                      

 

Specification:

 

Properties Value Test standard
Curing time @150°C 90-110s GB/T24411-2009
Flow Distance@125°C 35-45mm GB/T24411-2009
Free-phenol 0.5-1.5% GB/T30773-2014
hexa content 8-10% ZJHM-QESP-01-2015
Water content 0.5-2.0% GB/T2683-2008
Screening 200mesh/0.074mm 99% GB/T24411-2009

 

 

Packing&Storage


the package is paper-plastics bag in 25KGS each one
The storage life of this product is several months in a cool and dry place in original closed bags

 

Contact Details
Jiaxing Honing Import&Export CO,.LTD

Contact Person: Pmc

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