Published Date
Herdin Record #: PCHRD13120422171648  

Starch based adhesive for water-resistant plywood glue.

Researchers

Name	Role
1Mildred M. Fidel

Publication Information

1.

Publication Type:

Journal

Publication Sub Type:

Journal Article, Original

Title:

Philipp Tech J

Frequency:

Quarterly

Publication Date:

January-March 1987

Volume:

12

Issue:

1

Page(s):

55-65

Publisher:

Philippine Technology Researches

Abstract

A water-resistant plywood glue was developed from nami (Dioscorea hispida Dennst, family Dioscoreacea) starch that passed the tests required for exterior and interior plywood grades. The starch-based adhesive was formulated based on the modified Stein Hall system. Commercial phenol formaldehyde resin (HL 4645) at different levels was used as fortifier to improve bond strength. The formulated starch-based adhesive was applied to igem (Podocarpus imbricatus R. Br) veneers, with the following gluing conditions: glue spread -130 g/m2 agl; assembly time - 30 minutes;specific pressure - 15 kg/cm2; pressing temperature -5 minutes. Test results indicate that the glue bond strength containing 15.21% resin solids (RS) was comparable to that of the commercial phanolic resin with 31.47% RS. The resultant formulation would reduce plywood production cost by 62% for exterior type and 45% for interior type in terms of glue cost.

Physical Location

Location	Call Number	Available Format	Availability
Philippine Council for Health Research and Development Library

References

1. Adams, MF , Raf, RAV , Austin, HF . "Water-resistant plywood adhesives based on whole wheat flour. Adhesive age" 12(9): 34-36, 1969 

2. Caesar, GV . "Starch and its derivatives. In Skeist, I ed. Handbook of Adhesives. Van Mostrand Reinhold New York" , 170, 1962 

3. Dux, EF . "Production and uses of starch adhesives. In Whistler, RI and Paschall EL eds. Starch: Chemistry and Technology, Industrial aspects. New York Academic Press Inc." , 537, 1962 

4. Frieden, A . "Starch adhesives. In Kerr, RW eds. chemistry and Industry of Starch, 2nd ed. Academic Press Inc." , 589, 1950 

5. Gamo, N , Yamamoto, N . "Improvement of starch-based adhesives" Japan Adhesive Society Journal 15(2): 41-43, 1979 

6. Jarowenko, W . "Starch-based adhesives. Adhesives material, New Jersey" , 192-210, 1970 

7. Lugod, GC . "Nami - A crop to raise. Canopy" 9(5): 8-10, 1969 

8. Madamba, LS . "Physico-chemical properties of some Philippine root crop starches" NRCP Research Bulletin 35(1): 62-81, 1980 

9. "Philippine Lumberman" 30(1): 10-11, 1983

10. "Philippine Standard Association (PHILSA 1-2-68 revised, 1975) Phil Standard for Plywood" , 

11. Rodley, JA . "Starch and its derivatives, 3rd ed. John, Wiley & Sons Inc. New York" 2, 1954 

12. Saayman, HM , Brown, CH . "Wattle-based tannin-starch adhesive for corrugated containers" For Prod J27(4): 21-24, 1977 

13. Turreda, LD . "Comparative bonding performance of urea formaldehyde and cornstarch/isocyanate adhesives in particle board manufacture. Technical report. FPRDI Library, NSTA" , 1981 

14. Warsa, SR , Villaflor, AA . "Properties of nami flour extenders for plywood. Unpublished research report, College of Forestry, UP at Los Baños, College, Laguna" , 1981

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