Can add brief introduction of stiff vinyl colophony(1) , double phenolic A can add synthesis of resinous of vinyl of stiff annulus oxygen
Vinyl colophony has good to enhancing base material wellability, strength tall, tenacity is good, be able to bear or endure sex of high low temperature is good wait for a characteristic. Its retained the property of major epoxy resin, increased to shape the characteristic with rapid rate, applicable in high-powered composite material.
Can add stiff vinyl colophony to apply in SMC&BMC? Common vinyl colophony
Do not have carboxyl group, through ester of different cyanic acid (- NCO) or mix not saturated polyester to add stiff, ester of different cyanic acid adds stiff function to be not stabilized, get applied rarely; Mix not saturated colophony, can come true add stiff, but vinyl colophony may migratory, function can be affected certainly.
? Can add stiff vinyl colophony
It is better to have add stiff performance, OK in SMC&BMC applying.
Double phenolic A can add design of recipe of sheet of vinyl of stiff annulus oxygen
A variety of enlarge catenary agents can be used when preparation of double phenolic A vinyl undertake enlarge catenary, this gifts the function with vinyl different colophony.
Applicable at many domains:
Spend high strenth goods, gently corrode goods, be able to bear or endure saline mist goods, be able to bear or endure briny goods.
Some recipe uses medium magnesian burnt constituent and the concern that increase consistency
Need considers sort of colophony, contractive agent and proportion, and enhance material sort and content. Consider to shape even craft sex.
Final performance asks as follows: Flexural strength≥250MPa impact strength≥100KJ/m2 tensile strength≥150MPa is flame retardant: V-024 hours of needles enter colophony of common not saturated polyester degree can amount to 25-50
Colophony of double phenolic A vinyl is added stiff slower, when magnesian for 1% when, although add stiff time lengthen also short of adds stiff effect. Add when magnesian quantity 2 times or 3 times when, add consistency to be able to satisfy mould pressing requirement
High temperature resistant can add design of recipe of SMC of stiff vinyl colophony
In insulation plank or structural member, use the flexural strength that heat up voice to behave the hear resistance of material normally. F class checks below 150 ℃ , h class checks below 180 ℃ .
893N is belonged to high temperature resistant colophony, have higher incomplete charcoal rate, hear resistance is wonderful. Accordingly, in have be able to bear or endure the domain application of lukewarm demand is more.
Vinyl colophony adds stiff sex slower, have longer operation time, temperature rises, add quickly stiff, achieve after adding consistency certainly, as add stiff time lengthen, add consistency change is not apparent, tend stable.
Stiff to adding sex, 893 all have with 893N better add stiff sex, the content that is thickener only is different, add stiff sex finally all can very good contented suppress craft.
High temperature resistant vinyl colophony and benzene Xin Wu function of 2 mellow not saturated polyester contrasts
•Afore-mentioned drawing check batten to be plank water cut, other batten all is mould pressing batten. Between 2 mellow not saturated polyester heat up benzene new the fifth of the ten Heavenly Stem weightlessness
893N vinyl colophony heats up weightlessness test
High temperature resistant vinyl colophony sheet heats up weightlessness test
Special type plankPerformance demand:
