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unmodified ammonium polyphosphate in a thermoplastic polyurethane composites [ 13 ]. In this article, we present the results of our studies concerning thermal properties of the synthesized, new branched polymethylvinylborosiloxanes (PMVBSs) which have
Thermal properties and combustibility of cross-linked XNBR/CSM blends
Part II. Influence of the CSM kind
with MgO. These phenomena are connected both with the total Cl-content in the system and the specific action of MgO incorporated into the blends studied. The obtained results are the different thermal properties and the combustibility of CSM of
chemical affinity of modified surfaces. Thermal properties DSC analysis has been carried out to study first-order transitions like melting and crystallization of newly obtained materials. Results are presented in Table 3
) Polymers: TS( 8 ) ≈ TS( 9 ) > TS( 10 ) > TS( 7 ) Thermal properties of hydantoins and monomers depend on the type of substituents, the possibility of tautomerization as well as hydrogen bond formation. Introduction of tetralin or
in steal molds placed between electrically heated press plates. The optimal time of vulcanization (τ 0.9) at a temperature of 160 °C was determined by means of a WG-2 vulcameter according to Standard PN-ISO 3417:1994. The thermal properties
preparation of AC is the determination of their thermal properties. Thermal properties of CTPes and pitch-polymer compositions are evaluated mainly on the basis of the measurement of softening point. In this study, DSC method was proposed for this evaluation
Abstract
The article presents the results of testing thermal properties and combustibility of butadieneacrylonitrile rubber with 18% contents of bounded acrylonitrile, NBR 18. Two types of silica, Zeosil 175C and Ultrasil VN-3, with different specific surfaces were used as filler. Zeosil 175C and Ultrasil VN-3 were modified via cryogenic dezaggregation method. The activity of unmodified and cryogenic modified silica toward butadiene-acrylonitrile rubber were investigated. The sulphur and peroxide vulcanizates contained 20, 30, 40, and 50 phr. of the filler were studied. The article discusses also the test results of thermal stability and flammability of NBR 18 containing silica prepared "in situ" from alkoxysilane precursor. The test results were obtained with the use of derivatograph, measurements of flammability by the method of oxygen index, and in air. The effect of the silica modification on the SEM and AFM was also examined. The method of cryogenic modification enables to achieve increase of mineral fillers activity towards elastomer and reduction in the flammability of NBR 18 vulcanizates. It has been found that the modification of the vulcanizates of NBR 18 with tetraethoxysilane that makes it possible to form silica "in situ" reduces the flammability of cross-linked rubbers.
, N —the Avogadro number, S BET —the specific surface area of the tested adsorbents (m 2 /g), TG max —the maximum mass loss at 573 K (mg/g), M —molar mass of water (18 g/mol). Thermal properties of the silica-titania adsorbents were
two steps. The degradation of linkages present in the polyester structure and formed during the cure process is mainly expected [ 27 ]. Table 4 Thermal properties of copolymers (based on ethylene glycol
The thermal properties of DCPD-containing polymers are shown in Table 3 . TG analysis of obtained DCPD-containing polymers shows the differences in their thermal behavior. The higher values of the temperature of 10, 20, and 50% of mass loss ( T 10
