As the classic second-generation high silica/boron phenolic ablation resistant composite, it has been widely used in rockets and aerospace fields and has shown excellent performance. This paper studies its thermal protection and ablation resistance. Boron phenolic resin/high silica fibre composite containing wollastonite is well fabricated by compression moulding. Fourier transform infrared spectrometer reveals that due to the cleavage and oxidation of methylene groups, the phenolic system collapse. Aromatics are converted into amorphous carbon through a polycyclic reaction. The results of scanning electron microscopy and X-ray diffraction analysis demonstrate that inorganic fibres melted at high temperature and formed a new dense matrix with residual carbon and wollastonite filler. The main composition of the new phase is still silica, and the mechanical properties have been improved by 12%. The well-bonded matrix provides the ablative material better heat resistance at high temperature.
NataliM, MontiM, PugliaD, Ablative properties of carbon black and MWNT/phenolic composites: a comparative study. Compos A: Appl Sci Manuf. 2012; 43 ( 1 ): 174–182.
3.
MartínC, RondaJC, CádizV.Development of novel flame-retardant thermosets based on boron-modified phenol–formaldehyde resins. J Polym Sci Part A Polym Chem. 2006; 44 ( 11 ): 3503–3512.
4.
NataliM, PuriI, KennyJM, Microstructure and ablation behavior of an affordable and reliable nanostructured phenolic impregnated carbon ablator (PICA). Polym Degrad Stab. 2017; 141: 84–96.
5.
YinR, ChengH, HongC, Synthesis and characterization of novel phenolic resin/silicone hybrid aerogel composites with enhanced thermal, mechanical and ablative properties. Compos A: Appl Sci Manuf. 2017; 101: 500–510.
AbdallaMO, LudwickA, MitchellT.Boron-modified phenolic resins for high performance applications. Polym (Guildf). 2003; 44 ( 24 ): 7353–7359.
12.
LiB, ZhengYW, ZhengZF, Characterization of boron modified phenolic resin and its curing behavior. Adv Mat Res. 2011; 233–235: 137–141.
13.
YangW, XuB, QiM, Improving ablation properties of ceramifiable vitreous silica fabric reinforced boron phenolic resin composites via an incorporation of MoSi2. Plast Rubber Compos. 2020; 49 ( 10 ): 456–469.
14.
LiZ, ZouZ, QinY, The effect of fibre content on properties of ceramifiable composites. Plast Rubber Compos. 2020; 49 ( 5 ): 230–236.
15.
SchützMR, SattlerK, DeekenS, Improvement of thermal and mechanical properties of a phenolic resin nanocomposite by in situ formation of silsesquioxanes from a molecular precursor. J Appl Polym Sci. 2010; 117 ( 4 ): 2272–2277.
16.
WangS, JingX, WangY, High char yield of aryl boron-containing phenolic resins: the effect of phenylboronic acid on the thermal stability and carbonization of phenolic resins. Polym Degrad Stab. 2014; 99: 1–11.
17.
ZhangY, ShenS, LiuY.The effect of titanium incorporation on the thermal stability of phenol-formaldehyde resin and its carbonization microstructure. Polym Degrad Stab. 2013; 98 ( 2 ): 514–518.
18.
AmirsardariZ, Mehdinavaz AghdamR, Salavati-NiasariM, Enhanced thermal resistance of GO/C/phenolic nanocomposite by introducing ZrB2 nanoparticles. Compos B: Eng. 2015; 76: 174–179.
19.
LiuY, JingX.Pyrolysis and structure of hyperbranched polyborate modified phenolic resins. Carbon. 2007; 45 ( 10 ): 1965–1971.
20.
HossainSS, RanjanV, PyareR, Study the effect of physico-mechanical characteristics of ceramic tiles after addition of river silts and wollastonite derived from wastes. Constr Build Mater. 2019; 209: 315–325.
21.
WangS, JingX, WangY, Synthesis and characterization of novel phenolic resins containing aryl-boron backbone and their utilization in polymeric composites with improved thermal and mechanical properties. Polym Adv Technol. 2014; 25 ( 2 ): 152–159.
22.
HanuLG, SimonGP, MansouriJ, Development of polymer–ceramic composites for improved fire resistance. J Mater Process Technol. 2004; 153–154: 401–407.
23.
CasasL, Martínez-EsnaolaJM.Modelling the effect of oxidation on the creep behaviour of fibre-reinforced ceramic matrix composites. Acta Mater. 2003; 51 ( 13 ): 3745–3757.
24.
JiangH, WangJ, WuS, The pyrolysis mechanism of phenol formaldehyde resin. Polym Degrad Stab. 2012; 97 ( 8 ): 1527–1533.
WangJ, JiangH, JiangN.Study on the pyrolysis of phenol-formaldehyde (PF) resin and modified PF resin. Thermochim Acta. 2009; 496 ( 1-2 ): 136–142.
34.
LiuC, LiK, LiH, The effect of zirconium incorporation on the thermal stability and carbonized product of phenol–formaldehyde resin. Polym Degrad Stab. 2014; 102: 180–185.
35.
HanuLG, SimonGP, ChengYB.Preferential orientation of muscovite in ceramifiable silicone composites. Mater Sci Eng A. 2005; 398 ( 1-2 ): 180–187.
36.
ChanJX, WongJF, HassanA, Mechanical properties of wollastonite reinforced thermoplastic composites: a review. Polym Compos. 2019; 41 ( 2 ): 395–429.
37.
YuanX, EastealAJ, BhattacharyyaD.Influence of surface treatment on hybrid wollastonite-polyethylene composite resins for rotational moulding. J Mater Sci. 2008; 43 ( 18 ): 6057–6063.
38.
TurkmenO, KucukA, AkpinarS.Effect of wollastonite addition on sintering of hard porcelain. Ceram Int. 2015; 41 ( 4 ): 5505–5512.
39.
SomtürkSM, EmekİY, SenlerS, Effect of wollastonite extender on the properties of exterior acrylic paints. Prog Org Coat. 2016; 93: 34–40.
40.
NataliM, RalliniM, KennyJ, Effect of wollastonite on the ablation resistance of EPDM based elastomeric heat shielding materials for solid rocket motors. Polym Degrad Stab. 2016; 130: 47–57.
