Method for forming high strength mould

Abstract

A method to form a high strength moulded product is provided. The method begins by preparing a mouldable composition. The mouldable composition comprises between about 40 to 60 wt % of a fibre mixture and between about 15 to 45 wt % of an adhesive. A mould cavity is loaded with the mouldable composition up to about 90 % of the capacity of the mould cavity before applying a packing pressure of between about 435 to 870 psi to the mouldable composition. A predetermined clearance of between about 0.1 to 0.5 mm is maintained between a first mould part defining the mould cavity and a second mould part. The moulded product is removed from the mould cavity when the mouldable composition is substantially cured.

Description

technical field [0001] The present invention generally relates to a high strength molded product such as a pallet or a piece of furniture. More specifically, the present invention relates to methods of forming high strength products from moldable compositions. Background technique [0002] Typically, most products are manufactured from natural resources such as oils, minerals, wood or metals. However, with increasing environmental awareness, there is a tendency to reuse and recycle products in order to preserve natural resources and minimize the waste generated. [0003] An environmentally sound alternative to reusing and recycling products that has attracted much research interest is the use of agricultural and horticultural waste as raw materials. The goal of this research is to find alternatives to conventional raw materials such as wood, metal, plastic, wood chips, plastic panels, etc., for the purposes of waste minimization and natural resource conservation. Accordin...

AI Technical Summary

Problems solved by technology

Molded products cannot be formed in this case

[0011] Another drawback of the molded product disclosed in International Patent Application No. PCT / SGOl / 00180 is that it is not waterproof and thus disintegrates on contact with liquids

These additional steps increase the cost of producing the molded product and lengthen the time required for each production cycle

[0012] In addition, changing the processing temperature during the molding process is not feasible because it increases the time for the mold and molding mixture to reach the desired temperature; changing the processing temperature will significantly increase the processing time of each production cycle

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