search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
FLAME RETARDANTS | ADDITIVES


multifunctional additive that can help with the dispersion of solid FR additives, has synergies with ATH, MDH, and organo-phosphorus additives, and helps improve mechanical properties such as low temperature impact strength and elongation at break. Monjit Phukan, Global Technology Manager


Polymer & Electronic Additives, says that “SFR 100 is able to help the dispersion via hydrogen bond- ing, due to the hydroxyl groups that the additive carries. Under some temperature and processing conditions, grafting of SFR 100 silicone fluid can also take place causing in situ surface modification of the filler.” He adds that improved dispersion of the filler can help with processing – it may be possible to mould at lower pressures as well as fill thinner wall sections. The company has also introduced a methyl- phenyl silicone resin, Y-19320, which can act as a primary flame retardant. It has shown a high level of flame retardance in clear polycarbonate FR compounds, and in parts with 1.6mm thickness has demonstrated its ability to achieve a UL94 V-0 performance while offering 98% clarity at loadings between 1 and 4%. Phukan says this represents, “a potentially benign, more sustainable technology compared to some phosphorous-based flame retardants that are under scrutiny for their potential toxicity due to environmental concerns.” In addition, Phukan says that, because the additive is non-reactive, compounds in which it is used can potentially be recycled many times without loss of FR performance through degrada- tion. Y-19320 is a low molecular weight crosslinked material with a network structure, supplied in the form of a low viscosity resin. According to Momentive, it can not only reduce the flammability of polycarbonate, but also stop dripping in a fire by crosslinking the burning fluid. This is said to make it possible to obtain a V-0 rating (when used in conjunction with an anti-drip additive).


Dripping is a key concern in many fire retardant systems


Phukan also claims an advantage in terms of combustion rate and potential cost-effectiveness over octaphenyl cyclotetrasiloxane (OPCTS). In testing, at addition levels of 1.5%, he says Y-19320 demonstrated a 30% lower maximum specific combustion rate than OPCTS. The flame retardant can also be considered for use with other clear polymers, such as PMMA. It is based on a new platform technology from which other likely additions to the family and more generations are expected.


CLICK ON THE LINKS FOR MORE INFORMATION: � www.lanxess.com � www.icl-ip.com � www.frxpolymers.com � www.clariant.com � www.budenheim.com � www.thor.com � www.techmerpm.com � www.luh.dewww.quarzwerke.com � www.appliedminerals.com � www.songwon.com � www.paxymer.sewww.momentive.com


IMAGE: SHUTTERSTOCK


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76