Wpływ zjawisk elektrostatycznych na brudzenie się werniksów z żywic sztucznych THE EFFECT OF ELECTROSTATIC PHENOMENA ON THE SOILING OF VARNISHES FROM SYNTHETIC RESINS
The article is a summary of the work published in academic
books of the Copernicus University in Toruń.
Basing on th e observations and experience the authors
put forward a hypothesis th a t the main reason of a
rapid soiling of varnishes from synthetic resins is their
proneness to produce and acculmulate electrostatic charge.
It has been proved experimentally th a t th a t is so; moreover,
the factors determining th e level of the charge
accumulated have been determined.
F urthe r in the work the authors made an attempt to
employ industrial methods of the elimination of eelectrostatic
charge for conservation purposes. After selecting
a method of antielectrostatic preparation and establishing
the criterious which should be met by preparations
seven substances have been chosen. Then, the effectiveness
of th e ir electrostatic activity has been checked
on films of th ree varnishes th a t are used most frequently
as conservation varnishes. The analysis of the results
obtained in individual stages of work made it possible
to state th a t the original and most important cause of
the soiling of varnishes is th e ir electrostatic charging
th a t in practice takes place even under th e effect of
thermogravitational movements of the air. The dirt re maining
on the surface of the warnish stays glued into
it because of low melting temperatures of substances
used to make varnishes.
It is difficult for conservators alone to eliminate this
great disadvantage of synthetic varnishes. Their manufactures
must also work on this problem and it is from
them th a t one should expect works on the possibilities
of modifying electrostatic resins already at the stage
of their polymerization.
If this problem is not solved th a n it will be necessary
once again to ask about profits and losses and thus
about a justification for the use of varnishes from synthetic
resins in conservation.
Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies
Informacja
SZANOWNI CZYTELNICY!
UPRZEJMIE INFORMUJEMY, ŻE BIBLIOTEKA FUNKCJONUJE W NASTĘPUJĄCYCH GODZINACH:
Wypożyczalnia i Czytelnia Główna: poniedziałek – piątek od 9.00 do 19.00