Provide professional customizationFlame retardant · FireproofSolutions

Experimental test of antimony trioxide substitute DFRT-01 in PA

2025-10-17 10:04

Flame retardant synergist is a kind of chemical substance used in conjunction with main flame retardant. It usually has no obvious flame retardant effect, but it can significantly enhance the flame retardant performance of main flame retardant, reduce the dosage of main flame retardant, optimize the physical properties of materials and reduce the material cost.

It mainly achieves an effect of flame retardant through related mechanism, such as condensed phase action, gas phase action, free radical capture and so on.

Flame retardant synergist DFRT-01 is a product designed to replace antimony trioxide, which can effectively replace 30-50% pure antimony content in the formula, and reduce the comprehensive cost by about 30% on the basis of maintaining the original flame retardant performance! The following are the relevant test data in the experimental formula:


Table 1:
fire retardant
flexural strength
flexural modulus
ash
Sb2O3
268
9965
31.9
Sb2O3+DFRT-01
278
9652
32.2
Conclusion: From the test data in Table 1, we can see that the bending strength of the sample is improved in the formula that replaces 50% antimony trioxide. The bending modulus has little effect.

Table 2:
fire retardant
Glowing wire
Ignition temperature
melt index
CTI
Sb2O3
2/2/2/2/2/2/2
825
20.5
300
Sb2O3+DFRT-01
2/2/2.5/2/2/2/2
875
20
250
Conclusion: From the test data in Table 2, we can see that although the melting index and CTI index have decreased in the formula that replaces 50% antimony trioxide, the light-off temperature of the product has increased and the flame retardant effect has improved.

图片

summary



First, when DFRT-01 replaces 50% antimony trioxide content, the mechanical properties and bending strength of the product are improved;

Second, when replacing 50% of the formula, compared with antimony trioxide, the melting index and CTI decreased slightly, the light-off temperature increased, and the overall flame retardant effect improved.



name:
Message:
Verification code:
submit
Comment