Orthogonal Experimental Study on Moulding Conditions of Amino Moulding Plastic

Author:

Liu Juan1,Nan Jing Ya1,Wang Chun Peng1,Jin Tie Ling1,Chen Ri Qing1

Affiliation:

1. Institute of Chemical Industry of Forest Products, CAF

Abstract

In this paper, the moulding conditions of urea-formaldehyde resin were optimized to prepare moulding plastic with good mechanical properties using orthogonal experimental design method. The effects of moulding temperature, pressure and pressing time on the impact strength and blending strength of urea-formaldehyde resin were studied and analyzed. The results showed that moulding temperature had most noticeable influence on the impact strength and blending strength of urea-formaldehyde moulding compounds. The ratio F of moulding temperature to the impact strength was 2.077; the ratio F of moulding temperature to blending strength was 1.082. The most optimum conditions of preparing samples for testing the impact strength were that moulding temperature was 155 °C, pressure was 30 MPa and pressing time was 12 min; and the optimum moulding temperature of preparing samples with high blending strength was 155 °C, pressure was 25 MPa and pressing time was 5 min.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

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