Page 88 - 《橡塑技术与装备》英文版2026年3期

HINA R&P TECHNOLOGY AND EQUIPMENT

related to the chemical modification treatment of this material. Table 8 SVHC and H-bay of vulcanized rubber
2.5 Dynamic cutting resistance project Formula Number
1 # 2 # 3 # 4 #
The dynamic cutting mass loss rate of vulcanized rubber Comply with Comply with Comply with Comply with
SVHC/%
is presented in table 6. H-bay/% regulations regulations regulations regulations
0.20
0.20
0.21
0.21
Table 6 Dynamic cutting mass loss rate of vulcanized
rubber from tables 7 and 8, it can be seen that instant fluid black
Formula number
Project gold rubber, as a kind of environmentally friendly modified
1 # 2 # 3 # 4 #
Cutting quality loss rate /% 0.45 0.42 0.39 0.35 new material, meets the EU regulatory standards for various
environmental indicators; after replacing different proportions
It can be seen from table 6 that as the addition and dosage
of environmentally friendly aromatic oil, both SVHC and Hbay
of instant fluid black gold rubber increase, the properties of the
meet environmental requirements. As the proportion of instant
vulcanized rubber
fluid black gold rubber increases, there is basically no change
The dynamic cutting quality loss rate is reduced, which
in environmental indicators. In formulations with high usage
can improve the cutting resistance of the rubber compound
of traditional aromatic operating oil, the use of this material
and positively contribute to enhancing the cutting resistance of
as a substitute for operating oil will result in more pronounced
tread rubber used on unpaved roads.
environmental performance advantages, which are related
2.6 Processing performance to the raw materials used in the preparation of instant fluid
The loss factor tanδ-strain curve of unvulcanized rubber
black gold rubber and the environmentally friendly processing
is shown in figure 2.
technology.
2.8 Appearance impact

Appearance is one of the indicators of customer
satisfaction with tire quality, especially the discoloration of
the tread and sidewall, which has always been a problem
plaguing tire appearance. The operating oil, carbon black, and
other components in the formula are all related to appearance
Figure 2 Tanδ-strain relationship curve of unvulcanized discoloration, with operating oil having a significant impact. To
rubber verify the effect of instant fluid black gold rubber on improving

As can be seen from Figure 2, the data measured using appearance, rubber compounds with formula numbers 1#
and 4# were used to confirm the appearance of vulcanized
RPA indicate that as the proportion of instant fluid black gold
rubber increases, tanδ increases, which has a positive effect rubber sheets: the appearance of the vulcanized test sheets was
on reducing the expansion rate of the tread extrusion die. This observed after being stored for 7 days.
should be attributed to the increased mixing shear force due to
the use of instant fluid black gold rubber, thereby improving
the dispersion of the rubber compound and resulting in better
uniformity of the mixed rubber.
2.7 Environmental performance

The environmental indicators for the vulcanized rubber,
namely SVHC and H-bay content, are presented in tables 7 and
8.
Table 7 H-bay test of instant fluid rubber
Testing items EU regulations actual Figure 3 Appearance of vulcanized test piece of rubber
H-bay/% ≤ 0.35 0.33 compound No. 1#

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