CN101982516B - High-performance acidic transparent silicone sealant - Google Patents
High-performance acidic transparent silicone sealant Download PDFInfo
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- CN101982516B CN101982516B CN 201010557084 CN201010557084A CN101982516B CN 101982516 B CN101982516 B CN 101982516B CN 201010557084 CN201010557084 CN 201010557084 CN 201010557084 A CN201010557084 A CN 201010557084A CN 101982516 B CN101982516 B CN 101982516B
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Abstract
A high-performance acidic transparent silicone sealant belongs to the technical field of the adhesive. The sealant comprises the following components in parts by weight: 90-130 parts of hydroxyl-terminated polydimethylsiloxane, 10-60 parts of alkyl-terminated polydimethylsiloxane, 5-15 parts of crosslinking agent, 20-90 parts of silicon dioxide, 0.01-0.9 part of anti-yellowing agent and 0.005-0.15 part of catalyst, wherein crosslinking agent is the mixture of methyltriacetoxysilane and ethyltriacetoxysilane; anti-yellowing agent is one or more of ultraviolet absorbent and light stabilizer; and catalyst is dibutyltin diacetate or dibutyltin dilaurate. The invention does not depend on the foreign product and provides the high-performance acidic sealant so as to fills the gap that neutral transparent silicone sealant can not be used in the glass fishbowl; and the sealant has good bonding property to the substrate, and can not have blushing and yellowing and can have no pollution to the environment. The sealant can satisfy the demands of the specific curtain wall, glass roof and glass fishbowl.
Description
Technical field
The invention belongs to the adhesive technology field, be specifically related to a kind of high-performance acidic transparent silicone sealant with high adhesion, anti-yellowing change, high-low temperature resistant, water-fast-ultraviolet lighting.
Background technology
Fishbowl, design of glass lighting roof, point-supporting curtain, hanged glass curtain wall, concealed frame glass curtain wall and double glazing thereof have become an integral part of modern architecture because of its light, thin, saturating characteristics.These adopt the aluminium alloy extrusions of transparent white glass and silver color mostly, make by Standard bonding and sealing.At present, using seal gum is coloured seal gum basically, after having done yellow can occur, thereby affect the whole structure of curtain wall and people's visual appearance, and the seal gum that uses affects work-ing life because cementability is bad, not high-low temperature resistant, the reason such as not water-fast.
Summary of the invention
For the above-mentioned problems in the prior art, the object of the present invention is to provide a kind of high-performance acidic transparent silicone sealant with high adhesion, anti-yellowing change, high-low temperature resistant, water-fast-ultraviolet lighting.
Described a kind of high-performance acidic transparent silicone sealant, it is characterized in that comprising the component of following weight parts: 90 ~ 130 parts of hydroxy-end capped polydimethylsiloxanes, 10 ~ 60 parts of alkyl-blocked polydimethylsiloxanes, 5 ~ 15 parts of linking agents, 20 ~ 90 parts of silicon-dioxide, 0.01 ~ 0.9 part of anti-yellowing change agent, 0.005 ~ 0.15 part of catalyzer, described linking agent is the mixture of methyl triacetoxysilane and ethyltriacetoxysilane, described anti-yellowing change agent is uv-absorbing agent, one or more mixtures in the photostabilizer, described catalyzer are dibutyl tin acetate or dibutyl tin dilaurate.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that 100 ~ 110 parts of hydroxy-end capped polydimethylsiloxanes, alkyl-blocked 40 ~ 70 parts of 5 ~ 10 parts of 30 ~ 50 parts of polydimethylsiloxanes, linking agents, silicon-dioxide, 0.01 ~ 0.9 part of anti-yellowing change agent, 0.005 ~ 0.15 part of catalyzer.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that described hydroxy-end capped polydimethylsiloxane viscosity is 10000cp ~ 700000cp.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that the consumption weight ratio of the range of viscosities that described hydroxy-end capped polydimethylsiloxane is different is 10000cp ~ 40000cp:40000cp ~ 700000cp=1:0.1 ~ 20.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that described alkyl-blocked polydimethylsiloxane is methyl-silicone oil, methyl phenyl silicone oil, ethyl silicon oil or phenyl silicone oil, and its viscosity is 50cp ~ 5000cp.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that described silicon-dioxide is aerosil, and specific surface area is 80 ~ 220m
2/ g.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that needing rational Match between the aerosil of different specific surface areas, and the consumption weight ratio after the coupling is (80 ~ 170) m
2/ g:(170 ~ 220) m
2/ g=1 ~ 10:10 ~ 1.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that described uv-absorbing agent is a kind of in ESCALOL 567 or the 2-hydroxyl-4-n-octyloxy benzophenone.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that described photostabilizer is 4-benzoyloxy-2,2,6,6-tetramethyl piperidine, HMPA or three (1,2,2,6,6-Pempiten base) a kind of in the phosphite.
Described a kind of high-performance acidic transparent silicone sealant is characterized in that described methyl triacetoxysilane and ethyltriacetoxysilane consumption weight ratio are 0.5-1.2:1.
Compared with prior art, beneficial effect of the present invention is as follows:
1) adopts the hydroxy-end capped polydimethylsiloxane of different viscosity to use according to the different ratios coupling, thereby improve intensity and the hardness of high-performance acidic structure sealant;
2) adopt (80 ~ 220) m
2The silicon-dioxide of the different specific surface areas of/g uses the coupling between the different specific surface areas, can improve loading level, and make the more even, intensive of filler distribution, to improve intensity and the hardness of high-performance acidic structure sealant;
3) adopt the coupling of linking agent to use, changing the crosslinking structure of seal gum cross-linking system, thereby control and regulate intensity and the elongation of high-performance acidic structure sealant;
4) place uv-absorbing agent, the photostabilizer of anti-yellowing change, and strictly control the metal content of the oxidable variable color such as iron in the filler, make not xanthochromia of high-performance acidic structure sealant life-time service.
The present invention overcomes the dependence external product, and a kind of high-performance acidic structure sealant is provided, and fills up the vacancy that neutral transparent silicone seal gum can not be used for fishbowl, and it is to being produced good cohesiveness, non-whitening, xanthochromia not, tool environmentally safe by sticking base material.Can satisfy the demand of specific curtain wall, design of glass lighting roof, fishbowl.
Description of drawings
Fig. 1 is particular product performance parameters table of the present invention.
Embodiment
The invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited in this:
20 parts of hydroxy-end capped polydimethylsiloxane 10000 mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 700000 mpa.s
60 parts of ethyl silicon oil 50 mpa.s
2.5 parts of methyl triacetoxysilanes
2.5 parts of ethyltriacetoxysilanes
Aerosil 80m
210 parts of/g
10 parts of aerosil 150m2/g
4-benzoyloxy-2,2,6,0.01 part of 6-tetramethyl piperidine
0.005 part of dibutyl tin acetate
Method for making routinely, with above-mentioned starting material: after hydroxy-end capped polydimethylsiloxane 10000 mpa.s20 parts, hydroxy-end capped polydimethylsiloxane 700000 mpa.s70 parts, ethyl silicon oil 50 mpa.s60 parts are put in the glue cylinder, the glue cylinder is pushed in the glue making machine, add 2.5 parts of methyl triacetoxysilanes, 2.5 parts of ethyltriacetoxysilanes, vacuumize (vacuum tightness reaches more than the 0.09Mpa), start was stirred 20 minutes.Shut down emptying after, add again aerosil 80m
2/ g10 part, aerosil 150m2/g10 part, 4-benzoyloxy-2; 2; 0.01 part of 6,6-tetramethyl piperidine, start is stirred; behind the safe wedging of powder; vacuumize and stirred 40 minutes, shut down emptying after, add again 0.005 part of dibutyl tin acetate; vacuumize, start makes high-performance acidic transparent silicone sealant after stirring and mixing in 30 minutes.
100 parts of hydroxy-end capped polydimethylsiloxane 20000 mpa.s
10 parts of hydroxy-end capped polydimethylsiloxane 400000 mpa.s
60 parts of methyl-silicone oil 5000 mpa.s
5 parts of methyl triacetoxysilanes
10 parts of ethyltriacetoxysilanes
Aerosil 170m
28 parts of/g
80 parts of aerosil 220m2/g
4-benzoyloxy-2,2,6,0.5 part of 6-tetramethyl piperidine
0.4 part of ESCALOL 567
0.15 part of dibutyl tin acetate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
5 parts of hydroxy-end capped polydimethylsiloxane 30000 mpa.s
100 parts of hydroxy-end capped polydimethylsiloxane 60000 mpa.s
60 parts of methyl phenyl silicone oil 100 mpa.s
5 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 170m
240 parts of/g
50 parts of aerosil 220m2/g
0.5 part of HMPA
0.1 part of dibutyl tin dilaurate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
10 parts of hydroxy-end capped polydimethylsiloxane 40000 mpa.s
120 parts of hydroxy-end capped polydimethylsiloxane 600000 mpa.s
30 parts of methyl phenyl silicone oil 300 mpa.s
6 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 170m
230 parts of/g
Aerosil 220m
240 parts of/g
0.05 part of three (1,2,2,6,6-Pempiten base) phosphite
0.03 part of dibutyl tin dilaurate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
20 parts of hydroxy-end capped polydimethylsiloxane 10000mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 700000 mpa.s
30 parts of phenyl silicone oil 500 mpa.s
3.0 parts of methyl triacetoxysilanes
2.5 parts of ethyltriacetoxysilanes
Aerosil 150m
215 parts of/g
Aerosil 180m
225 parts of/g
4-benzoyloxy-2,2,6,0.01 part of 6-tetramethyl piperidine
0.005 part of dibutyl tin acetate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
40 parts of hydroxy-end capped polydimethylsiloxane 40000mpa.s
60 parts of hydroxy-end capped polydimethylsiloxane 500000 mpa.s
10 parts of methyl-silicone oil 1000 mpa.s
2.5 parts of methyl triacetoxysilanes
2.5 parts of ethyltriacetoxysilanes
Aerosil 220m
220 parts of/g
HMPA. 0.9 part of three (1,2,2,6,6-Pempiten base) phosphite
0.015 part of dibutyl tin acetate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
Embodiment 7 gets the component of following weight part:
40 parts of hydroxy-end capped polydimethylsiloxane 20000mpa.s
90 parts of hydroxy-end capped polydimethylsiloxane 600000 mpa.s
45 parts of methylbenzene silicone oil 400 mpa.s
4 parts of methyl triacetoxysilanes
6 parts of ethyltriacetoxysilanes
Aerosil 110m
230 parts of/g
Aerosil 210m
260 parts of/g
0.035 part of ESCALOL 567
0.15 part of dibutyl tin dilaurate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
Embodiment 8 gets the component of following weight part:
50 parts of hydroxy-end capped polydimethylsiloxane 40000mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 500000 mpa.s
25 parts of phenyl silicone oil 2000 mpa.s
5 parts of methyl triacetoxysilanes
10 parts of ethyltriacetoxysilanes
Aerosil 120m
220 parts of/g
Aerosil 200m
240 parts of/g
2-hydroxyl-4-n-octyloxy benzophenone 0.15
Dibutyl tin dilaurate 0.08
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
Embodiment 9 gets the component of following weight part:
35 parts of hydroxy-end capped polydimethylsiloxane 30000mpa.s
80 parts of hydroxy-end capped polydimethylsiloxane 400000 mpa.s
40 parts of methyl-silicone oil 800 mpa.s
7 parts of methyl triacetoxysilanes
6 parts of ethyltriacetoxysilanes
Aerosil 130m
250 parts of/g
Aerosil 170m
230 parts of/g
4-benzoyloxy-2,2,6,0.08 part of 6-tetramethyl piperidine
0.09 part of dibutyl tin acetate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
45 parts of hydroxy-end capped polydimethylsiloxane 20000mpa.s
55 parts of hydroxy-end capped polydimethylsiloxane 500000 mpa.s
50 parts of ethyl silicon oil 300 mpa.s
6 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 140m
215 parts of/g
Aerosil 170m
240 parts of/g
HMPA. 0.25 part of three (1,2,2,6,6-Pempiten base) phosphite
0.07 part of dibutyl tin dilaurate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
50 parts of hydroxy-end capped polydimethylsiloxane 10000mpa.s
50 parts of hydroxy-end capped polydimethylsiloxane 600000 mpa.s
35 parts of methyl-silicone oil 1500 mpa.s
4 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 100m
230 parts of/g
Aerosil 220m
225 parts of/g
0.5 part of ESCALOL 567
0.04 part of dibutyl tin acetate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
Embodiment 11 gets the component of following weight part:
40 parts of hydroxy-end capped polydimethylsiloxane 40000mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 400000 mpa.s
40 parts of phenyl silicone oil 500 mpa.s
3 parts of methyl triacetoxysilanes
4 parts of ethyltriacetoxysilanes
Aerosil 160m
240 parts of/g
0.06 part of 2-hydroxyl-4-n-octyloxy benzophenone
0.05 part of dibutyl tin dilaurate
After above-mentioned starting material are mixed by the method for embodiment 1 the high-performance acidic structure sealant.
High-performance acidic structure sealant of the present invention is mainly used in Standard bonding and the sealing of fishbowl, design of glass lighting roof, point-supporting curtain, hanged glass wall, concealed frame glass curtain wall and double glazing thereof, be used for ensureing the security of curtain wall construction, and whole design for aesthetic and permeability.
As can be seen from Figure 1, high-performance acidic structure sealant of the present invention, satisfy GB 16776-2005 " structural silicone sealant for building " standard-required, the seal gum that provides, fill up the vacancy that neutral transparent silicone seal gum can not be used for fishbowl, it is to being produced good cohesiveness, non-whitening, xanthochromia not, tool environmentally safe by sticking base material.Can satisfy the demand of specific curtain wall, design of glass lighting roof, fishbowl.
Claims (12)
1. a high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts: 20 parts of hydroxy-end capped polydimethylsiloxane 10000 mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 700000 mpa.s
60 parts of ethyl silicon oil 50 mpa.s
2.5 parts of methyl triacetoxysilanes
2.5 parts of ethyltriacetoxysilanes
Aerosil 80m
210 parts of/g
Aerosil 150 m
210 parts of/g
4-benzoyloxy-2,2,6,0.01 part of 6-tetramethyl piperidine
0.005 part of dibutyl tin acetate.
2. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
100 parts of hydroxy-end capped polydimethylsiloxane 20000 mpa.s
10 parts of hydroxy-end capped polydimethylsiloxane 400000 mpa.s
60 parts of methyl-silicone oil 5000 mpa.s
5 parts of methyl triacetoxysilanes
10 parts of ethyltriacetoxysilanes
Aerosil 170m
28 parts of/g
Aerosil 220 m
280 parts of/g
4-benzoyloxy-2,2,6,0.5 part of 6-tetramethyl piperidine
0.4 part of ESCALOL 567
0.15 part of dibutyl tin acetate.
3. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
5 parts of hydroxy-end capped polydimethylsiloxane 30000 mpa.s
100 parts of hydroxy-end capped polydimethylsiloxane 60000 mpa.s
60 parts of methyl phenyl silicone oil 100 mpa.s
5 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 170m
240 parts of/g
Aerosil 220 m
250 parts of/g
0.5 part of HMPA
0.1 part of dibutyl tin dilaurate.
4. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
10 parts of hydroxy-end capped polydimethylsiloxane 40000 mpa.s
120 parts of hydroxy-end capped polydimethylsiloxane 600000 mpa.s
30 parts of methyl phenyl silicone oil 300 mpa.s
6 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 170m
230 parts of/g
Aerosil 220m
240 parts of/g
0.05 part of three (1,2,2,6,6-Pempiten base) phosphite
0.03 part of dibutyl tin dilaurate.
5. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
20 parts of hydroxy-end capped polydimethylsiloxane 10000mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 700000 mpa.s
30 parts of phenyl silicone oil 500 mpa.s
3.0 parts of methyl triacetoxysilanes
2.5 parts of ethyltriacetoxysilanes
Aerosil 150m
215 parts of/g
Aerosil 180m
225 parts of/g
4-benzoyloxy-2,2,6,0.01 part of 6-tetramethyl piperidine
0.005 part of dibutyl tin acetate.
6. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
40 parts of hydroxy-end capped polydimethylsiloxane 40000mpa.s
60 parts of hydroxy-end capped polydimethylsiloxane 500000 mpa.s
10 parts of methyl-silicone oil 1000 mpa.s
2.5 parts of methyl triacetoxysilanes
2.5 parts of ethyltriacetoxysilanes
Aerosil 100m
210 parts of/g
Aerosil 220m
220 parts of/g
HMPA. 0.9 part of three (1,2,2,6,6-Pempiten base) phosphite
0.015 part of dibutyl tin acetate.
7. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
40 parts of hydroxy-end capped polydimethylsiloxane 20000mpa.s
90 parts of hydroxy-end capped polydimethylsiloxane 600000 mpa.s
45 parts of methylbenzene silicone oil 400 mpa.s
4 parts of methyl triacetoxysilanes
6 parts of ethyltriacetoxysilanes
Aerosil 110m
230 parts of/g
Aerosil 210m
260 parts of/g
0.035 part of ESCALOL 567
0.15 part of dibutyl tin dilaurate.
8. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
50 parts of hydroxy-end capped polydimethylsiloxane 40000mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 500000 mpa.s
25 parts of phenyl silicone oil 2000 mpa.s
5 parts of methyl triacetoxysilanes
10 parts of ethyltriacetoxysilanes
Aerosil 120m
220 parts of/g
Aerosil 200m
240 parts of/g
2-hydroxyl-4-n-octyloxy benzophenone 0.15
Dibutyl tin dilaurate 0.08.
9. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
35 parts of hydroxy-end capped polydimethylsiloxane 30000mpa.s
80 parts of hydroxy-end capped polydimethylsiloxane 400000 mpa.s
40 parts of methyl-silicone oil 800 mpa.s
7 parts of methyl triacetoxysilanes
6 parts of ethyltriacetoxysilanes
Aerosil 130m
250 parts of/g
Aerosil 170m
230 parts of/g
4-benzoyloxy-2,2,6,0.08 part of 6-tetramethyl piperidine
0.09 part of dibutyl tin acetate.
10. high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
45 parts of hydroxy-end capped polydimethylsiloxane 20000mpa.s
55 parts of hydroxy-end capped polydimethylsiloxane 500000 mpa.s
50 parts of ethyl silicon oil 300 mpa.s
6 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 140m
215 parts of/g
Aerosil 170m
240 parts of/g
HMPA. 0.25 part of three (1,2,2,6,6-Pempiten base) phosphite
0.07 part of dibutyl tin dilaurate.
11. a high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
50 parts of hydroxy-end capped polydimethylsiloxane 10000mpa.s
50 parts of hydroxy-end capped polydimethylsiloxane 600000 mpa.s
35 parts of methyl-silicone oil 1500 mpa.s
4 parts of methyl triacetoxysilanes
5 parts of ethyltriacetoxysilanes
Aerosil 100m
230 parts of/g
Aerosil 220m
225 parts of/g
0.5 part of ESCALOL 567
0.04 part of dibutyl tin acetate.
12. a high-performance acidic transparent silicone sealant is characterized in that being comprised of the component of following weight parts:
40 parts of hydroxy-end capped polydimethylsiloxane 40000mpa.s
70 parts of hydroxy-end capped polydimethylsiloxane 400000 mpa.s
40 parts of phenyl silicone oil 500 mpa.s
3 parts of methyl triacetoxysilanes
4 parts of ethyltriacetoxysilanes
Aerosil 160m
240 parts of/g
Aerosil 200m
210 parts of/g
0.06 part of 2-hydroxyl-4-n-octyloxy benzophenone
0.05 part of dibutyl tin dilaurate.
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| CN 201010557084 CN101982516B (en) | 2010-11-24 | 2010-11-24 | High-performance acidic transparent silicone sealant |
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|---|---|---|---|
| CN 201010557084 CN101982516B (en) | 2010-11-24 | 2010-11-24 | High-performance acidic transparent silicone sealant |
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| CN101982516B true CN101982516B (en) | 2013-03-27 |
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| CN104629675B (en) * | 2015-01-12 | 2017-07-25 | 湖北恒盛有机硅有限责任公司 | A kind of flint glass glue for glass curtain wall |
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| CN111534272B (en) * | 2020-05-14 | 2022-11-04 | 南通亿硕新材料科技有限公司 | Preparation method of acidic silicone sealant and sealant |
| CN111704888A (en) * | 2020-05-15 | 2020-09-25 | 江门市金信恒科技有限公司 | Organic silicon binder resistant to long-term ultraviolet irradiation and preparation method thereof |
| CN112795365A (en) * | 2020-12-31 | 2021-05-14 | 佛山市金德利粘胶有限公司 | Acidic silicone glass cement and production process |
| CN114703669B (en) * | 2022-03-31 | 2023-11-10 | 浙江传化功能新材料有限公司 | High-stability anti-phenolic yellowing silicone oil softener and preparation method thereof |
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