1.4.1 education process in the production of sponge, natural fibers from water hyacinth. Study to determine the optimal conditions to adjust the สภาพผัก carbon by study, removal of lignin and immersed in a solution of sodium hydroxide concentration 4 6,,8 10 and weight ratio of water hyacinth in sodium hydroxide solution, as 1.5 1: 10 1: 15 1: 20 and temperature,, and 30 50 70 90 degrees Celsius. For 30 45 60,,,And 75 90 minutes. And to study the optimal conditions for production of sponge natural fibers. In experiment is used in proportion to the volume viscosity 3 4 cellulose mixture,,And 5 and 6 with sodium sulfate in the weight ratio of mixture viscosity on sodium sulfate as 1: 1 1: 2 and then put the plant fibers. Long 5 mm percent by weight of a mixture of viscous 1-2
1.2.2 compare the performance degradation of the natural fiber with sponge sponge in the market
.The natural fiber with the sponge sponge in the market ground with soil moisture content about a hundred 65 then check decomposed every day for a month. 5 2 The per cent of decomposition
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