Polymer silica-reinforced masterbatch with nanomaterial

A polymer silica masterbatch comprising:

• a. a latex of a natural or a synthetic polymer;
• b. 0.1 weight percent to 10 weight percent of a nanomaterial comprising a nanotube, a nanorod, a nanoribbon and mixtures thereof to form a density from 0.3 grams per cubic centimeter to 1.4 grams per cubic centimeter of a final material;
• and
• c. 5 weight percent to 80 weight percent of a compatibilized silica with 0.1 weight percent to 25 weight percent of a plurality of silane coupling agents chemically bound to its surface wherein the silanes are present as an average tetrameric structure having a T.sup.3/T.sup.2 ratio of 0.75 or greater as measured by NMR and wherein the plurality of silane coupling agents comprises:
• (i) a first silane comprising an organosilicon having a structure:
• Z1Z2Z3Si(CH2)yX(CH2)ySiZ1Z2Z3, wherein X is a polysulfide, wherein y is an integer equal to or greater than 1;
• and wherein Z1, Z2, and Z3 are each independently selected from the group consisting of hydrogen, alkoxy, halogen, and hydroxyl;
• and
• (ii) a second silane comprising an organosilicon having a structure
• wherein:
• 1. X is a functional group selected from the group consisting of:
• hydrogen, an amino group, a polyamino alkyl group, a mercapto group, a thiocyanato group, an epoxy group, a vinyl group, a halogen, an acryloxy group and a methacryloxy group;
• 2. Y is an integer equal to or greater than 0;
• and
• 3. Z1, Z2, and Z3 are each independently selected from the group consisting of:
• hydrogen, alkoxy, halogen, and hydroxyl.