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Samenvatting Herhalingsvragen houttechnologie

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Herhalingsvragen houttechnologie, goede voorbereiding voor het examen. Deze vragen komen sowieso aanbod op het examen

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Herhalingsvragen houttechnologie
Houtanatomie deel 1
Factoren die de vorm van een boom beïnvloeden.
Soort boom en groeiomstandigheden: temperatuur, licht, water, wind, luchtvervuiling,
bodem
3 hoofdbestanddelen van hout.
Holocellulose (cellulose en hemicellulose) en lignine
Veranderingen door verkerning in het hout.
Kernhout kan donkerder kleuren en de duurzaamheid verbeteren
Invloed looistoffen op de eigenschappen en het verwerken van het hout.
2 voorbeelden het economisch belang van looistoffen.
Verhoging van duurzaamheid
Donkere verkleuring bij oxidatie
Kan verven en verlijmen beïnvloeden
Looizuur kan corroderende werking hebben op metalen (vb eiken)
Economisch belang: eiken vaten en leerlooierij
Invloed zetmeel op hout?
Kan vlugger bepaalde insecten en blauwschimmels aantasten
Functie van cambium. Waar zijn de cambiumcellen te vinden?
Naar het binnen toe cellen die zich ontwikkelen tot hout, secundair xyleem
Naar buiten toe cellen die zich ontwikkelen tot bast, het secundair floëem
Bevindt zich onmiddellijk onder de bast
3 toepassingen van de schil.
Kurkwinning
Verwarmingsdoeleinden
Veevoeders

, Houtanatomie deel 2

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Uploaded on
May 16, 2023
Number of pages
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Written in
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