A melamine salt of 2,2-bis(hydroxmethyl)-1,3-propanediyl bis(dihydrogen phosphate)was prepared from phosphous oxychloride,pentaerythritol and melamine.By orthogonal experiment,the optimum conditions of synthesis were ...A melamine salt of 2,2-bis(hydroxmethyl)-1,3-propanediyl bis(dihydrogen phosphate)was prepared from phosphous oxychloride,pentaerythritol and melamine.By orthogonal experiment,the optimum conditions of synthesis were obtained.Its structure was confirmed by melting point,element analysis and IR.The compound was further modified by using formaldehyde and proper hydrophilic auxiliary,and a new multi-functional melamine resin tanning agent with flame resistance was obtained.The experimental results show that the product has high-stability,good-solubility,high efficient flame resistance and good capability of retanning-filling.展开更多
The consumption ofthermoset resins as building polymers is approximately over one million tone word wide. The thermoset resins are proven construction materials for the technical and highly demanding applications of t...The consumption ofthermoset resins as building polymers is approximately over one million tone word wide. The thermoset resins are proven construction materials for the technical and highly demanding applications of the transportation, electrical and building part industry. Heat stability, high thermal, low shrinkage, excellent mechanical properties are typical for their type of polymers. Above applications in addition to the mechanical properties also require good flame retardants of the materials. Undertaken activities refer to official draft, laws and legal recommendations in UE states. This paper presents positive effect of reduced flammability of thermoset resins （unsaturated polyester and epoxy resins） thanks to the use of nanocomposites containing multi-ingredient halogen-flee flame retardants which combine conventional phosphorus/nitrogen modifiers interacting with nanofillers （oMMT （organomodified montmorillonite）, EG （expandable graphite）, graphene, GO （graphene oxide）, nSi （nanosilica））.展开更多
文摘A melamine salt of 2,2-bis(hydroxmethyl)-1,3-propanediyl bis(dihydrogen phosphate)was prepared from phosphous oxychloride,pentaerythritol and melamine.By orthogonal experiment,the optimum conditions of synthesis were obtained.Its structure was confirmed by melting point,element analysis and IR.The compound was further modified by using formaldehyde and proper hydrophilic auxiliary,and a new multi-functional melamine resin tanning agent with flame resistance was obtained.The experimental results show that the product has high-stability,good-solubility,high efficient flame resistance and good capability of retanning-filling.
文摘The consumption ofthermoset resins as building polymers is approximately over one million tone word wide. The thermoset resins are proven construction materials for the technical and highly demanding applications of the transportation, electrical and building part industry. Heat stability, high thermal, low shrinkage, excellent mechanical properties are typical for their type of polymers. Above applications in addition to the mechanical properties also require good flame retardants of the materials. Undertaken activities refer to official draft, laws and legal recommendations in UE states. This paper presents positive effect of reduced flammability of thermoset resins （unsaturated polyester and epoxy resins） thanks to the use of nanocomposites containing multi-ingredient halogen-flee flame retardants which combine conventional phosphorus/nitrogen modifiers interacting with nanofillers （oMMT （organomodified montmorillonite）, EG （expandable graphite）, graphene, GO （graphene oxide）, nSi （nanosilica））.
