SU423910A1 - COMPOSITION FOR THE MANUFACTURE OF PAPER DIELECTRICS - Google Patents

Description

one

The invention relates to compositions for, manufactured and paper dielectric, in particular capacitor paper.

At present, condenser paper: Exotics; they are made from 100% sulphate unbleached pulp without the introduction of any additives.

Known condenser paper containing cellulose and active sorbent-filler, consisting of 10% magnesia and 90% alumina and having a specific surface 191,.

The disadvantage of the latter sorbent is a relatively small sorption capacity.

In order to obtain a dielectric with increased heat resistance and a dew point of the punching panel, a silico-organo-siloxane compound containing the SiR group is used as the adsorbent, where R is CH3; CiH CH2; CgHs, with the following ratio of components, weight. %:

Cellulose

90-95 Adsorbent 5-10.

The advantage of this adsorbent is a high specific surface area (200-

500) compared with the known sorben TaiMH and high sorption capacity (0.39-

0.67 cm Vr).

The introduction of such additives into the mass allows one to obtain electrical insulation paper with a high breakdown voltage and high thermal resistance without reducing the dielectric loss tangent.

Table 1 shows the data characterizing the main indicators and paper, depending on the type of additive and its amount in mass.

Table 2 describes the characteristics of the additives used.

Table 1

P re d iM le t and z o bre te and i

Composition for the manufacture of paper dielectric containing cellulose and an adsorbent, excepting. IQ: In order to increase the final (Sodium, and heat resistance, the composition contains

table 2

a silico-polyorganoiloxal compound containing a SiR group, where K CH 3; SbH5, With the following correlation in weight. %:

Cellulose 90-95%

S l and ko - on whether ori gai o xy l oa a. New compound 5–10%