Some observations on the sorption of moisture by elastomeric solid propellant binders

J. C. Potts

摘要

AbstractThe isotherms for the sorption of water by six rubbery binders of the sort used in solid propellants have been measured at room temperature. The solubility at saturation ranged from 0.003 to 0.030 g. of water/g. of binder. The Flory‐Huggins equation was used to calculate an upper limit for thex1interaction parameters; these ranged from 2.6 to 4.7. The isotherms were best fitted by a modified Henry's law equation:documentclass{article}pagestyle{empty}begin{document}$ {p mathord{left/ {vphantom {p {p_0 = ({1 mathord{left/ {vphantom {1 {k)}}} right. kern-nulldelimiterspace} {k)}}{{N_1 } mathord{left/ {vphantom {{N_1 } {(N_1 + N_2 ) = ({1 mathord{left/ {vphantom {1 {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}} right. kern-nulldelimiterspace} {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}}}} right. kern-nulldelimiterspace} {(N_1 + N_2 ) = ({1 mathord{left/ {vphantom {1 {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}} right. kern-nulldelimiterspace} {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}}}}}} right. kern-nulldelimiterspace} {p_0 = ({1 mathord{left/ {vphantom {1 {k)}}} right. kern-nulldelimiterspace} {k)}}{{N_1 } mathord{left/ {vphantom {{N_1 } {(N_1 + N_2 ) = ({1 mathord{left/ {vphantom {1 {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}} right. kern-nulldelimiterspace} {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}}}} right. kern-nulldelimiterspace} {(N_1 + N_2 ) = ({1 mathord{left/ {vphantom {1 {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}} right. kern-nulldelimiterspace} {k){S mathord{left/ {vphantom {S {S + (alpha - 1)S_{max } }}} right. kern-nulldelimiterspace} {S + (alpha - 1)S_{max } }}}}}}}} $end{document}The possible significance of the parametersk, α, β, andSmaxis discus

机译：摘要在室温下测量了固体推进剂中使用的六种橡胶粘合剂吸附水的等温线。饱和时的溶解度范围为0.003-0.030克水/克粘合剂。采用Flory-Huggins方程计算x1交互作用参数的上限;这些范围从2.6到4.7。等温线最好由修正的亨利定律方程拟合：documentclass{article}pagestyle{empty}begin{document}$ {p mathord{left/ {vphantom {p {p_0 = （{1 mathord{left/ {vphantom {1 {k）}}} right. kern-nulldelimiterspace} {k）}}[{{N_1 } mathord{left/ {vphantom {{N_1 } {（N_1 + N_2 ）] = （{1 mathord{left/ {vphantom {1 {k）{S mathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}} right. kern-nulldelimiterspace} {k）{Smathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}}}} right.kern-nulldelimiterspace} {（N_1 + N_2 ）] = （{1 mathord{left/ {vphantom {1 {k）{S mathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}} right. kern-nulldelimiterspace} {k）{S mathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}}}}}} right.kern-nulldelimiterspace} {p_0 = （{1 mathord{left/ {vphantom {1 {k）}}} right.kern-nulldelimiterspace} {k）}}[{{N_1 } mathord{left/ {vphantom {{N_1 } {（N_1 + N_2 ）] = （{1 mathord{left/ {vphantom {1 {k）{S mathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ] }}}}}右。 kern-nulldelimiterspace} {k）{S mathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}}}} right. kern-nulldelimiterspace} {（N_1 + N_2 ）] = （{1 mathord{left/ {vphantom {1 {k）{Smathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}} right.kern-nulldelimiterspace} {k）{S mathord{left/ {vphantom {S {[S + （alpha - 1）S_{max } ]}}} right. kern-nulldelimiterspace} {[S + （alpha - 1）S_{max } ]}}}}}}}} $end{document}参数的可能意义sk， α， β， andSmaxis discus

Some observations on the sorption of moisture by elastomeric solid propellant binders

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