bottle stopper material has many peculiarity that can substituted by the high polymer synthesis materical: low specific gravity
Wine bottle stopper
The cork material has many peculiarity that can not be substituted by the high polymer synthesis material:
1,low specific gravity,
2,good elastics,
3, non-permeability ,
4,non-air-leakage,
5,low burning point,
6,resistance against corrossion of microbes
7,chemical solvents.
Wine -purpose cork stoppers are generally classified under three categories:
1,natural whole cork stoppers,
2,polymer cork stoppers made cork powders processed with pressure-polymerization moulds,
3,one-plus-one paster cork stoppers with polymeric material between the two natural cork pieces.
Natural cork stoppers usually adopts high-grade raw materials.
Polymeric cork stoppers are generally made from high-grade and adequate cork powders pressure-polymerized into material mould with a certain density.
Agglomerated cork sticks test report:
Tests sample Average Max. Min.Moisture(%) 50 8.4 9.0 8.0Diameter(mm) 50 25.1 25.6 24.6Length(mm) 50 630.7 635.0 630.0Apparent Density(kg/m3) 50 264 283 252
Normal wine bottle stopper
