(a) |

(b) |

(c) |

(d) |

(e) |

(f) |

Figure 5: SEM photographs of spherical nano-SiO_{2} coated fabrics’ surface microstructures. (a) Mass percentage of spherical nano-SiO_{2} is 0%; (b) mass percentage of spherical nano-SiO_{2} is 3%; (c) mass percentage of spherical nano-SiO_{2} is 6%; (d) mass percentage of spherical nano-SiO_{2} is 9%; (e) mass percentage of spherical nano-SiO_{2} is 12%; (f) mass percentage of spherical nano-SiO_{2} is 15%. |