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返回主页 > 苯并噁嗪树脂与传统树脂对比

苯并噁嗪树脂与传统树脂对比

For challenging applications, Huntsman benzoxazine resins are an ideal alternative to conventional epoxy, phenolic and BMI resin systems.

Epoxy: Benzoxazine resins are 50% stiffer than traditional epoxies with flexural moduli in the 4,500 – 5,300 MPa range. The hot/wet performance of the new resins is also better than that of epoxy materials. The benzoxazines also offer lower shrinkage during cure.

Phenolic: Benzoxazine resins produce higher part accuracy with less micro-cracking than phenolic resins and do not generate volatiles during cure – which means higher-quality laminates with reduced chance of voids.

Bismaleimide: While bismalemides (BMIs) currently offer the highest Tgs, they require longer processing times

and an autoclave cure, resulting in higher manufacturing costs than benzoxazine resins.

 

Benzoxazine performance vs. traditional resins

Property

Benzoxazine

Epoxy

Phenolic

BMIs

 

Tg

Good

Good

Good

Excellent

 

Stiffness

Excellent

Good

Good

Good

 

Shrinkage

Excellent

Poor

Good

Good

 

Flammability

Excellent

Poor

Excellent

Good

 

Hot/Wet

Excellent

Poor

Average

Excellent

 

Chemical

Resistance

Excellent

Average

Good

Good

Toughness

Average

Good

Average

Average

 

CTE

Good

Average

Average

Good

 

Processability

Good

Good

Poor

Average

 

Storage

Stability

Good

Average

Poor

Good

Thermal performance and cost comparison among traditional resin chemistries