Eucalyptus bark artificial sound-insulation fibreboard and manufacture method thereof

Abstract

The invention relates to an eucalyptus bark artificial sound-insulation fibreboard and a manufacture method thereof. The eucalyptus bark artificial sound-insulation fibreboard belongs to veneers made of particles or fibers and characterized by being formed by using eucalyptus bark fibers as raw materials and comprising the steps of adhering and thermally pressing. The invention provides an eucalyptus bark artificial sound-insulation fibreboard with small density, strong strength, good sound-insulation effect and lower cost and the manufacture method thereof. Scraps generated by an eucalyptus bark wood-processing device are utilized, which saves the resources, protects the environment, improves the strength of the artificial sound-insulation fibreboard, optimizes the sound-insulation and heat-insulation effects and decreases the production cost. The prepared eucalyptus bark artificial sound-insulation fibreboard with the thickness of 15mm reaches the following technical indexes: the density is larger than or equal to 450 kg / m<3>, the static bending strength parallel to grain is larger than or equal to 30 MPa, the static bending strength perpendicular to grain is larger than or equal to 20 MPa, the elasticity modulus parallel to grain is larger than or equal to 4000 MPa, the elasticity modulus perpendicular to grain is larger than or equal to 3000 MPa, and the formaldehyde release amount accords with the Eo standard. The invention is suitable for sound-insulation and heat-insulation doors, windows and wall interlayers of civilian constructions, office spaces, theatres and hotels.

Description

technical field [0001] The invention relates to a eucalyptus bark fiber sound-insulating artificial board and a manufacturing method thereof, belonging to plywood composed of granules or fibers. In particular, it relates to boards made from eucalyptus bark fibers through processes such as fiber treatment, glue mixing, paving and molding, and hot pressing. Background technique [0002] Eucalyptus species originate from Australia. It grows rapidly, has strong adaptability, and has high wood yield. It is one of the three fastest-growing woods in the world. Therefore, it has been introduced and cultivated by many countries and regions in the world. According to statistics, the planted area of ​​eucalyptus plantations in the world has reached 20 million hectares. my country has also introduced eucalyptus species. Currently, the planted area of ​​eucalyptus plantations has reached 1.5 million hectares. Timber resources from eucalyptus are abundant. [0003] Eucalyptus trunk pee...

AI Technical Summary

Problems solved by technology

However, in the process of processing, the bark produced has not been utilized, resulting in a waste of resources and polluting the environment.

[0004] The fiber-based panels in the prior art mostly use non-wood plant scraps or crop straws as raw materials, which are used as sound insulation and heat insulation panels, with low strength and poor sound insulation effect, and the wood chip sandwich material has a high cost.