Keywords silicon dioxide,sol,powers,nanometer,micrometer,hydrolysis,polymerization-induced colloid aggregation,urea-formaldehyde polymer,preparation,characterization;

• 二氧化硅;溶胶;粉末;纳米;微米;水解;聚合诱导胶体团聚;尿醛树脂;制备;表征;