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Phenolic resin for abrasives

Introduction:

Resin for bonded abrasives: powdery or liquid resin. The powdery resin with high bonding strength, good mechanical property and good abrasive property, is used to make grinding wheels with various rigidities. The liquid resin with viscosity, solid content and molecular weight strictly controlled, can be used as the wetting agent for the grinding wheel.
Resin for coated abrasives: water soluble thermosetting liquid resin. It has good bonding property with abrasives, substrate and even metal, good mechanical property after curing, water resistant, grease resistant, chemical resistant, aging resistant, good compatibility with various fillers and latex, and high wettability.

Application:

Resin for bonded abrasives: used in various grinding wheels, including cutting/ultrathin/grinding blades and heavy load/large diameter/ultrahard grinding wheels.
Resin for coated abrasives: used in various coated abrasives, including various abrasive belts, dry grinding/water resistant abrasive cloth/paper, coated abrasive paper, vulcanized fiber discs and non-woven fabric abrasives.

Property: 
Powdery resin:

Model Flowability(mm C6H12N4
%
@150℃ Polymerization time
under 150℃

sec
Free phenol
%
PF-4105 22-35 8.5-9.5 65-90 ≤2
PF-4106 35-45 8-9 70-100 2.0-4.0
PF-4107 30-50 12-13 70-95 1-2
PF-4308 20-30 12.5-13.5 60-80 3-5
PF-4309 18-24 10-12 60-80 ≤ 1.5


(Note: 1. PF 4105 & PF 4106: used in normal abrasive discs; 2. PF 4308: used in large diameter cutting blades; 3. PF 4309: used in heavy load grinding wheel轮)

Liquid resin:

Model Solid content
%
@25℃ Viscosity under
@25℃CP
Free pheno
%
Water solubility
%

PF-6121

75-79 900-1100 12 -14 70-90

PF-6122

72--75 300-500 11-14 30-60

PF-6123

76--81 3000--3500 13--16 50-70

PF-6124

77-80 1800-2200 12--15 60-90

PF-6610

65-69 250-550 12-15 >2000

PF-6620

70-74 550-750 11-14 40-200

PF-6630

73-81 1500-2500 12-15 40-200

PF-6640

73 -79 900-1200 12-15 170-250

PF-6650

74 -80 900-1500 13-16 200-350

PF-6680

76-81 2000-3000 11-14 40-200

PF-6690

74-78 600-1200 11-14 40-200

PF-6710

72-78 800-1400 12-15 150-230


(Note: 1. PF 6121-6124: wetting agent for grinding wheels; 2. PF 6610-6710: thermosetting resin for coated abrasives)