The choice of the Flame Retardant Agent of general Flame Retardant Agent side by face summarized test data, accurate. To predict Flame Retardant Agent is very difficult. After the use of Flame Retardant Agent increases the bond strength is a combination of a series of complicated factors, such as infiltration, surface energy and boundary layer adsorption, adsorption, polarity of acid-base interaction, etc.
Primary Flame Retardant Agent can follow the following rules:, tianjin ethylene unsaturated poly vinegar can choose code, epoxy group and methyl propylene Chen oxygen radicals type Flame Retardant Agent; Appropriate chooses type epoxy group or amino epoxy resin Flame Retardant Agent; Phenolic resin amino or take appropriate chooses base type Flame Retardant Agent; Olefin polymer type appropriate chooses vinyl right machine Flame Retardant Agent; Sulfur vulcanized rubber appropriate chooses hydrophobic base type Flame Retardant Agent and so on,
The general principles of the a, choose Flame Retardant Agent
Hydrolysis velocity of known, Flame Retardant Agent can take on silicon mass of Si - X, whereas with organic polymer reactivity in carbon functional group C - Y. Therefore, for different base material or processing object, choose suitable Flame Retardant Agent is crucial.
The selection method is mainly through experiments, pre-selection and should be carried out on the basis of existing experience or law. For example, in the general case, unsaturated polyester (up) to choose more contain CH2 = CMeCOOVi and CH2 - CHOCH2O Flame Retardant Agent: epoxy resin choose contain CH2CHCH2O and more H2NFlame Retardant Agent: phenolic resin choose contain H2N and more H2NCONHFlame Retardant Agent: polyolefin choose vinyl silane more: using sulfur vulcanized rubber more choose hydroxyl silane, etc. The adhesion strength of heterogeneous materials is affected by a series of factors, such as wetting, surface energy, interface layer and polar adsorption, acid and alkali action, interpenetrating network and covalent bond reaction.
Therefore, experimental primary alone is not enough precise, sometimes also need to consider the material composition and its Flame Retardant Agent response sensitivity, etc. In order to improve the hydrolysis stability and decrease the cost of modification, Flame Retardant Agent can be mixed with trialkyl silane in use; For difficult sticky materials, but also will be Flame Retardant Agent crosslinked polymer sharing.