970302 Technology and properties of natural raw materials

Practical course
Semester hours
Lecturer (assistant)
Hettegger, Hubert , Mautner, Andreas , Potthast, Antje , Sykacek, Eva
Offered in
Wintersemester 2023/24
Languages of instruction


(IFA-Tulln, Institute for Natural Materials Technology)

Registration only for waiting list, fixed division into groups of max. 5 persons takes place at introductory meeting. Attendance is required for a fixed position!
Maximum number of participants: 20 persons
NAWARO students as of the 3rd semester will be preferred!

Introductory meeting for all participants (MANDATORY):
Date: 04.10.2023, 14:15-15.45
Place: Institute of Natural Materials Technology (IFA-Tulln), Seminar Room
ATTENDANCE is required for a fixed position!

Course events at IFA-Tulln, Institute for Natural Materials Technology (to be updated):

Preparation and extrusion:
KW 41/2018: 4 hours each

Injection moulding:
KW 42/2018: 3 hours each

Measurement and evaluation:
KW 45/2018: 7 hours each

Presentation (all groups) in January 2018

Plastics, bioplastics and moulding technologies
Overview Wood Plastic Composites
Examples of products

Introduction to the exercises:
Properties of the materials used
Drying, mixing ratios
Machine parameters and protocols (compounding, extrusion)
Storage, mechanical testing (tensile strength, impact, density, swelling)
Interpretation and report of results


(Department of Chemistry)

Max. 2 groups with 10 students each, exact dates: week 5 2024, January 29th to February 2nd (2 days per group, both groups in week 5 in January 2024), each day from 9 am to 5 pm, location: DCh, Org.Lab., Muthgasse

Experiment 1: Biocatalytic reduction of acetophenones with carrots and yield determination by NMR

Experiment 2: Extraction of carrot and broccoli pigments and their qualitative analysis using thin-layer chromatography (TLC)

Experiment 3: Isolation of caffeine from tea by means of solid/liquid Soxhlet extraction

Experiment 4: Solubility of biopolymers, biopolymer derivatives, and monomeric components

Experiment 5: Obtaining furfural from bran or oatmeal and qualitative evidence of product formation

Previous knowledge expected

Part 1:
Attendence of the VO "Biobased and biodegradable plastics" is recommended.
Basic knowledge about the disciplined and attentive handling of raw materials and machines

Part 2:
Principles of extraction and chromatographic techniques. Responsible handling of chemicals.

Objective (expected results of study and acquired competences)

Part 1:

After successfully completing this course the students are familiar with methods for processing bioplastics, plastics and renewable resources using extrusion and injection moulding. In addition the students acquire knowledege about the mechanical properties of different materials by comparing the results of the tests they conducted.

Part 2:

This part of the practical course is aiming at the scholars become better aquainted with structure-dependent properties of biopolymers and the potential of natural products as source for the production of value-added products. The course impart knowledge and practical skills regarding basic techniques used in commercial applications of renewable materials such as extraction, chemical degradation for obtaining fine chemicals or cross-linking. Furthermore, competence in the field of chromatographic separation of natural extractive mixtures will be raised.
You can find more details like the schedule or information about exams on the course-page in BOKUonline.