Silicone rubber composition, crosslinked silicone rubber, and sealing material
A technology of silicone rubber composition and sealing material, which is applied in the field of silicone rubber cross-linked body and sealing material, and silicone rubber composition, which can solve the problems of reduced productivity, difficulty in forming, and longer time, so as to improve productivity and cure The effect of speed improvement and dispersion improvement
Active Publication Date: 2022-03-01
SUMITOMO RIKO CO LTD
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Generally speaking, if a peroxide cross-linking agent with a relatively high decomposition temperature is selected, the time until the start of curing becomes longer and the time required to fill the mold with the material is ensured, but the time until the completion of curing becomes longer and the production decreased sex
On the other hand, if a peroxide crosslinking agent with a relatively low decomposition temperature is selected, the time until the curing is completed will be shortened, but the time until the curing is started is too fast, and the curing will begin before the material is filled into the mold, and the mold will become deformed. difficult
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0060] With the composition (parts by mass) described in Table 1, an organopolysiloxane having an alkenyl group, a peroxide crosslinking agent, a heat stabilizer, and an organopolysiloxane having a phenyl group were kneaded using a kneader, Prepare a silicone rubber composition.
Embodiment 2
[0062] A silicone rubber composition was prepared in the same manner as in Example 1 except that no organopolysiloxane having a phenyl group was blended.
Embodiment 3～4
[0064] Except having changed the organopolysiloxane which has an alkenyl group, it carried out similarly to Example 2, and prepared the silicone rubber composition.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| viscosity | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
| viscosity | aaaaa | aaaaa |
Login to View More
Abstract
Provided is a silicone rubber composition having excellent reproducibility of curing characteristics, while ensuring material filling time and improving productivity due to short-time curing. The silicone rubber composition contains (a) an organopolysiloxane having an alkenyl group, (b) a peroxide crosslinking agent, and (c) a heat stabilizer, wherein the (c) contains a compound represented by general formula (1). In formula (1), R1 represents hydrogen or a methyl group, R2, R3, R4, and R5 each independently represent a C1-9 alkyl group, and R6 represents hydrogen or a methyl group.
Description
technical field [0001] The present invention relates to a silicone rubber composition, a silicone rubber cross-linked body and a sealing material. Background technique [0002] The peroxide crosslinking agent that crosslinks and cures polymers such as silicone rubber is selected according to the mold temperature. Generally speaking, if a peroxide cross-linking agent with a relatively high decomposition temperature is selected, the time until the start of curing becomes longer and the time required to fill the mold with the material is ensured, but the time until the completion of curing becomes longer and the production reduced sex. On the other hand, if a peroxide crosslinking agent with a relatively low decomposition temperature is selected, the time until the curing is completed will be shortened, but the time until the curing is started is too fast, and the curing will begin before the material is filled into the mold, and the mold will become deformed. Difficult to ge...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08L83/04C08K5/14C08K5/134
CPCC08L83/04C08K5/14C08K5/134C09K3/10C08F299/08C08K5/005C08G77/20C09J183/04C08L83/00C08F220/301C08G77/80C08L2205/02
Inventor 森田贵大关智仁早崎康行山冈龙介
Owner SUMITOMO RIKO CO LTD