在不改变纤维板现行制胶和热压设备的条件下,研制新胶种和新工艺,生产一种室内型乒乓球台台面用纤维板新产品.新产品关键指标:密度≥680 kg/m3,表层密度≥1040 kg/m3,内结合强度≥0.60 MPa,静曲强度≥29 MPa,游离甲醛≤6mg/100 g,吸水厚度膨胀率≤10%,油漆后板面光滑度、平整度、弹性要求、尺寸等各项性能指标符合室内型乒乓球台台面要求,适用于娱乐、训练、专业比赛等.
This study details the development of a new fiberboard specifically designed for indoor table tennis table tops,utilizing existing glue-making and hot-pressing equipment.The newly developed adhesive and production process result in a fiberboard that meets stringent performance criteria.Key properties of the product include a density of ≥680 kg/m3,surface density≥ 1 040 kg/m3,internal binding strength of ≥0.60 MPa,bending strength of ≥29 MPa,and a low free formaldehyde content of ≤6 mg/100 g.Additionally,the water absorption thickness expansion ratio is maintained at ≤10%.The finished board's surface exhibits optimal smoothness,flatness,and elasticity,conforming to the standards required for indoor table tennis tables suitable for leisure,training,and professional competitions.