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Fibre and paper chemistry (5 cr)

Code: BI00CX93-3007

General information


Enrollment

07.11.2022 - 18.11.2022

Timing

09.01.2023 - 30.04.2023

Number of ECTS credits allocated

5 op

Mode of delivery

Contact teaching

Unit

Department of Electrical Engineering, Building Services and Material Technology

Campus

Savonlinna Campus

Teaching languages

  • Finnish

Seats

15 - 40

Degree programmes

  • Degree Programme in Bioproduct Technology

Teachers

  • Petteri Paananen

Scheduling groups

  • Pienryhmä 1 (Size: 12. Open UAS: 0.)
  • Pienryhmä 2 (Size: 12. Open UAS: 0.)

Groups

  • BISA21SP
    Bioproduct Technology, full-time studies

Small groups

  • Pienryhmä 1
  • Pienryhmä 2

Objective

You know the chemistry involved in the production of sulphate pulp and the related analysis methods.
You recognize the most essential quantities and chemical phenomena and the meaning of these in paper making chemistry and its management.
You recognize the most common fillers and additives used in paper making and the effect and meaning of these for the end product and runability of paper machines as well as for the equipment and the stock and water systems.
You recognize the theories and techniques of mixing the additives.
You recognize the retention mechanisms and the most often used retention chemicals and systems in paper machines.
You understand the effect of water circulation systems on colloidal substances and the means to minimize the effect of non-retain chemicals and colloidals.

Content

What are the cooking chemicals and their reactions in the sulphate cellulose process?
How are the properties of cooking chemicals measured?
How are the properties of produced cellulose determined?
What are the most important quantities in paper machine chemistry?
What kind of fillers and additives are used?
What properties do the additives and fillers bring to the end product and what is their role related to the runability of paper machines?
How is good mixing of fillers and additives ensured?
What is retention?
Which factors influence mechanical, filler and total retention?

Evaluation scale

1-5