Determination of pulp properties of materials from abaca stalks of different stages of growth.

Date

4-1969

Degree

Bachelor of Science in Agriculture

Major Course

Major in Agronomy

College

College of Agriculture and Food Science (CAFS)

Adviser/Committee Chair

Lauro A. Ynalvez

Co-adviser

Jaime R Navarro

Abstract

Pulp properties of three varieties of abaca fibers from three stages of growth of the stalk were determined using the soda pulping process. Folding endurance, bursting strength, tearing strength and tensile strength varied highly among varieties, stages of growth of the stalks and levels of freeness of the pulp. Fibers from the young stalks were found superior in folds, bursting strength and tensile strength, but inferior in tearing strength. The tearing strength tended to increase with maturity. Pulp of fibers from all varieties at the three stages of growth exceeded the commercial long-fibered sulfate pulp from spruce and fair in tearing strength, tensile strength, and folding endurance, but, were only comparable to the letter in bursting strength. the density of handsheets tended to decrease with maturity. Variations in the dimension of the individual fibers were noted both among varieties and stages of growth.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1969 A42 O83

Document Type

Thesis

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