Specific Accelerating Agent for Silicic
Rubber-DM-5 |
Chemical Name:2.5-dimethyl -2.5-dual(tertbutyl)hexane
Chemical Symbol:TBPH
Chemical Structural Formula:
(CH3)3C-O-O-C(CH3)2-(CH2)2-C-(CH3)2-O-O-C(CH3)3
Quality Index:Milk-white substance
with slight smell.
Quality Index:Peroxide50%
Decomposing Temperature:14520
Temperature at reaching half life after 1 minute:180
Application:
Powdery DM-5 is a vulcanizing agent at high temperature for vinyl silicic
rubber. It is well evenly distributed in silicic rubber with convenient
mixing process. The vulcanized silicic rubber has even and stable physic
performance, strong tensile and lancinating strength, high stretching
rate, consistently small deformation. The product manufactured has good
transparency, good yellowing-resistance , and extremely low smell. Its
quality index reaches or exceeds the standard of similar product of foreign
countries. Moreover, its is firstly made domestically, applicable to the
process manufacturing such molded and ejection-molded products as a variety
of silicic rubber key-press, sealing ring, accessories used in such industries
as automobile manufacture, heat resistant rubber plate, silicic rubber
roller.
Application Method:
This product is evenly added with the amount equal to 0.8-1.2% of the
weight of gross silicic rubber. ( The standard amount is 1% of the weight
of gross rubber.) It undergoes the process of being pressed and mixed
1-3 time before the end products are shaped like flakes. The vulcanizing
conditions must be controlled as: 175-180
X 2.5-5mm (for small molded products). However, the thickness, size, and
the ruber-filling quantity for each mold etc. must be determined according
specific conditions.
Package, Storage and Transportation:
Packed with cardboard box lined with plastic bag; weighted 15 kg(net);
stored and transported as organic peroxide. Stored in dry, cool,ventilated,
and away -from -heat -source place.
Not allowed to be contacted with eyes, mouth, skin; if contacted, rinsed
with clean water timely.
|