CN104559769A - Smooth coating liquid silicone rubber and preparation method thereof - Google Patents
Smooth coating liquid silicone rubber and preparation method thereof Download PDFInfo
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- CN104559769A CN104559769A CN201410843706.4A CN201410843706A CN104559769A CN 104559769 A CN104559769 A CN 104559769A CN 201410843706 A CN201410843706 A CN 201410843706A CN 104559769 A CN104559769 A CN 104559769A
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Abstract
The invention relates to the technical field of liquid silicone rubber and a preparation method thereof, in particular to smooth coating liquid silicone rubber and a preparation method thereof. The smooth coating liquid silicone rubber comprises components in parts by weight as follows: 80-140 parts of 60,000-centipoise vinyl-terminated silicone oil, 200-340 parts of 10,000-centipoise vinyl-terminated silicone oil, 10-10 parts of high vinyl silicone oil, 130-230 parts of fumed silica, 25-45 parts of a silazane treating agent, 5-15 parts of a siloxane treating agent, 1-5 parts of a silane coupling agent, 1-5 parts of an alkyl softener, 200-400 parts of 1,000-centipoise vinyl-terminated silicone oil, 0.6-2.0 parts of a platinum complex and 3-10 parts of hydrosilicone oil, 50-degree gas-phase liquid rubber is taken as the basis, quantitative vinyl silicone oil is added, the fumed silica is co-treated by the silazane treating agent and the siloxane treating agent, hydroxyl on the surface of the fumed silica is cleaned completely, the platinum complex is used for catalytic reaction, the silane coupling agent is taken as a coupling agent, fumed silica and vinyl in the vinyl silicone oil have an addition reaction, and the tacky phenomenon on a product surface is improved with the addition of the alkyl softener.
Description
Technical field
The present invention relates to liquid silastic and preparation method thereof technical field, particularly relate to soft and smooth type coating liquid silicon rubber and preparation method thereof.
Background technology
The product that existing coating liquid silicon rubber is made, surface, with certain viscosity, needs could use after surface treatment.For this reason, soft and smooth type coating liquid silicon rubber of research and development and preparation method thereof is needed badly, to solve the deficiencies in the prior art.
Summary of the invention
An object of the present invention, for providing soft and smooth type coating liquid silicon rubber, uses new formula, allows the goods produced remove from and secondary processing operation, expands its Application Areas simultaneously.
Another object of the present invention is for providing the preparation method of above-mentioned soft and smooth type coating liquid silicon rubber.
For achieving the above object, the present invention adopts following technical scheme:
Soft and smooth type coating liquid silicon rubber, comprises each component of following weight part:
More preferably, the contents of ethylene of described high-vinyl silicone oil is between 0.1-5%.
More preferably, described silazane treatment agent is hexamethyldisilazane.
More preferably, described siloxane treated agent is dimethyldiethoxysilane.
More preferably, described silane coupling agent is vinyltrimethoxy silane.
More preferably, the alkyl compound of described alkyl softener to be that to state alkyl softener be main chain be 15 ~ 20 carbon atoms.
More preferably, described complex compound is selected from the composition of any one or both in Platinic chloride/alkene complex or Platinic chloride/divinyl tetramethyl disiloxane complex compound.
More preferably, the platinum content of described platinum complex is between 3000-10000ppm.
More preferably, the hydrogen richness of described containing hydrogen silicone oil is between 0.2-1.5%.
The preparation method of the soft and smooth type coating liquid silicon rubber described in above-mentioned any one, comprises the following steps:
1) first take each component respectively according to the amount of above-mentioned formula, then by 60000 centipoise vinyl-terminated silicone fluids, 10000 centipoise vinyl-terminated silicone fluids of half, high-vinyl silicone oil, drop into kneader;
2) in the product of step 1 kneading, substep adds vapor phase process silica flour, silazane treatment agent, siloxane treated agent and silane coupling agent in batches, first controls at 20-60 DEG C by temperature, cold refining 0.5 ~ 2h; Raise temperature again to 150-200 DEG C, mediate 2 ~ 6 hours under vacuum condition, and before discharging, remaining half 10000 centipoise vinyl-terminated silicone fluid is slowly added, then mediate 0.5-2h;
3) discharging, after being ground, decile drops in two stirring tanks, and in two stills, respectively add alkanes softener and the 1000 centipoise vinyl-terminated silicone fluids of half, simultaneously add whole platinum complexs in a stirring tank wherein, add whole containing hydrogen silicone oils in another stirring tank, stir respectively, discharging separately can pack use.
Beneficial effect of the present invention is: based on 50 degree of vapor phase process liquid glues, add quantitative vinyl silicone oil, use silazane treatment agent, siloxane treated agent co-treatment vapor phase process silica flour, by clean for the hydroxyl process on the Fumed silica surface of vapor phase process silica flour, by platinum complex catalyzed reaction, use silane coupling agent as coupling agent, with the vinyl generation addition reaction in vinyl silicone oil, form the reticulated structure in space, improve intermolecular reactive force, especially the adding of alkyl softener, the phenomenon that the product surface that improvement is made is clamminess, thus can other industry be applied to, replace leather, preparation method's step is simple, be applicable to large-scale industrial production application.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, and this is preferred embodiment of the present invention.
Embodiment 1
Soft and smooth type coating liquid silicon rubber, comprises each component of following weight part:
Wherein, the contents of ethylene of described high-vinyl silicone oil is 5%; Described alkyl softener is CH
3(CH
2)
13cH
3, the platinum content of Platinic chloride/alkene complex is 3000ppm, and the hydrogen richness of described containing hydrogen silicone oil is 0.2%.
Embodiment 2
Soft and smooth type coating liquid silicon rubber, comprises each component of following weight part:
Wherein, the contents of ethylene of described high-vinyl silicone oil is 0.1%; Described alkyl softener is CH
3(CH
2)
18cH
3, the platinum content of Platinic chloride/divinyl tetramethyl disiloxane complex compound is 10000ppm, and the hydrogen richness of described containing hydrogen silicone oil is 1.5%.
Embodiment 3
Soft and smooth type coating liquid silicon rubber, comprises each component of following weight part:
Wherein, the contents of ethylene of described high-vinyl silicone oil is 2%; Described alkyl softener is CH
3(CH
2)
13cH (CH
3) CH
3the platinum content of Platinic chloride/divinyl tetramethyl disiloxane complex compound is 5000ppm, and the hydrogen richness of described containing hydrogen silicone oil is 0.75%.
Embodiment 4
The preparation method of the soft and smooth type coating liquid silicon rubber described in embodiment 1, comprises the following steps:
1) first take each component respectively according to the amount of formula described in embodiment 1, then by 60000 centipoise vinyl-terminated silicone fluid 800g, 10000 centipoise vinyl-terminated silicone fluid 1000g of half, high-vinyl silicone oil 100g, drop into kneader;
2) in the product of step 1 kneading, substep adds vapor phase process silica flour 1300g, silazane treatment agent 250g, siloxane treated agent 60g and silane coupling agent 10g in batches, first temperature is controlled at 20 DEG C, cold refining 2h; Raise temperature again to 150 DEG C, mediate 6 hours under vacuum condition, and before discharging, remaining 10000 centipoise vinyl-terminated silicone fluid 1000g are slowly added, then mediate 0.5h;
3) discharging, after being ground, decile drops in two stirring tanks, and in two stills, respectively add alkanes softener 5g and the 1000 centipoise vinyl-terminated silicone fluid 1000g of half, simultaneously add whole platinum complex 6g in a stirring tank wherein, add whole containing hydrogen silicone oil 30g in another stirring tank, stir respectively, discharging separately can pack use.
Embodiment 5
The preparation method of the soft and smooth type coating liquid silicon rubber described in embodiment 2, comprises the following steps:
1) first take each component respectively according to the amount of formula described in embodiment 1, then by 60000 centipoise vinyl-terminated silicone fluid 1400g, 10000 centipoise vinyl-terminated silicone fluid 1700g of half, high-vinyl silicone oil 200g, drop into kneader;
2) in the product of step 1 kneading, substep adds vapor phase process silica flour 2300g, silazane treatment agent 450g, siloxane treated agent 150g and silane coupling agent 50g in batches, first temperature is controlled at 60 DEG C, cold refining 0.5h; Raise temperature again to 200 DEG C, mediate 6 hours under vacuum condition, and before discharging, remaining 10000 centipoise vinyl-terminated silicone fluid 1000g are slowly added, then mediate 2.h;
3) discharging, after being ground, decile drops in two stirring tanks, and in two stills, respectively add alkanes softener 25g and the 1000 centipoise vinyl-terminated silicone fluid 2000g of half, simultaneously add whole platinum complex 20g in a stirring tank wherein, add whole containing hydrogen silicone oil 100g in another stirring tank, stir respectively, discharging separately can pack use.
Embodiment 6
The preparation method of the soft and smooth type coating liquid silicon rubber described in embodiment 3, comprises the following steps:
1) first take each component respectively according to the amount of formula described in embodiment 1, then by 60000 centipoise vinyl-terminated silicone fluid 1100g, 10000 centipoise vinyl-terminated silicone fluid 1350g of half, high-vinyl silicone oil 150g, drop into kneader;
2) in the product of step 1 kneading, substep adds vapor phase process silica flour 1800g, silazane treatment agent 350g, siloxane treated agent 100g and silane coupling agent 30g in batches, first temperature is controlled at 40 DEG C, cold refining 1h; Raise temperature again to 170 DEG C, mediate 4 hours under vacuum condition, and before discharging, remaining 10000 centipoise vinyl-terminated silicone fluid 1350g are slowly added, then mediate 1h;
3) discharging, after being ground, decile drops in two stirring tanks, and in two stills, respectively add alkanes softener 15g and the 1000 centipoise vinyl-terminated silicone fluid 1500g of half, simultaneously add whole platinum complex 13g in a stirring tank wherein, add whole containing hydrogen silicone oil 60g in another stirring tank, stir respectively, discharging separately can pack use.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. soft and smooth type coating liquid silicon rubber, is characterized in that, comprises each component of following weight part:
60000 centipoise vinyl-terminated silicone fluids 80 ~ 140 parts;
10000 centipoise vinyl-terminated silicone fluids 200 ~ 340 parts;
High-vinyl silicone oil 10 ~ 10 parts;
Vapor phase process silica flour 130 ~ 230 parts;
Silazane treatment agent 25 ~ 45 parts;
Siloxane treated agent 5 ~ 15 parts;
Silane coupling agent 1 ~ 5 part;
Alkyl softener 1 ~ 5 part;
1000 centipoise vinyl-terminated silicone fluids 200 ~ 400 parts;
Platinum complex 0.6 ~ 2.0 part;
Containing hydrogen silicone oil 3 ~ 10 parts.
2. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: the contents of ethylene of described high-vinyl silicone oil is between 0.1-5%.
3. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: described silazane treatment agent is hexamethyldisilazane.
4. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: described siloxane treated agent is dimethyldiethoxysilane.
5. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: described silane coupling agent is vinyltrimethoxy silane.
6. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: the alkyl compound of described alkyl softener to be main chain be 15 ~ 20 carbon atoms.
7. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: described platinum complex is selected from the composition of any one or both in Platinic chloride/alkene complex or Platinic chloride/divinyl tetramethyl disiloxane complex compound.
8. the soft and smooth type coating liquid silicon rubber according to claim 1 or 7, is characterized in that: the platinum content of described platinum complex is between 3000-10000ppm.
9. soft and smooth type coating liquid silicon rubber according to claim 1, is characterized in that: the hydrogen richness of described containing hydrogen silicone oil is between 0.2-1.5%.
10. the preparation method of the soft and smooth type coating liquid silicon rubber according to any one of claim 1-9, is characterized in that, comprise the following steps:
1) first take each component respectively according to the amount of above-mentioned formula, then by 60000 centipoise vinyl-terminated silicone fluids, 10000 centipoise vinyl-terminated silicone fluids of half, high-vinyl silicone oil, drop into kneader;
2) in the product of step 1 kneading, substep adds vapor phase process silica flour, silazane treatment agent, siloxane treated agent and silane coupling agent in batches, first controls at 20-60 DEG C by temperature, cold refining 0.5 ~ 2h; Raise temperature again to 150-200 DEG C, mediate 2 ~ 6 hours under vacuum condition, and before discharging, remaining half 10000 centipoise vinyl-terminated silicone fluid is slowly added, then mediate 0.5-2h;
3) discharging, after being ground, decile drops in two stirring tanks, and in two stills, respectively add alkanes softener and the 1000 centipoise vinyl-terminated silicone fluids of half, simultaneously add whole platinum complexs in a stirring tank wherein, add whole containing hydrogen silicone oils in another stirring tank, stir respectively, discharging separately can pack use.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255363A (en) * | 2015-10-26 | 2016-01-20 | 自贡市汇龙堂文化艺术有限公司 | Imitation animal skin coloring agent and preparation method thereof |
| CN106832306A (en) * | 2016-12-27 | 2017-06-13 | 浙江泰普森休闲用品有限公司 | A kind of application of polysiloxanes and its preparation system and polysiloxane polyurethane titanium dioxide compo and the coating |
| CN108049201A (en) * | 2018-01-10 | 2018-05-18 | 广东天跃新材料股份有限公司 | A kind of wash fast silicon rubber leather and its coating process |
| CN110358304A (en) * | 2019-06-14 | 2019-10-22 | 东莞市天桉硅胶科技有限公司 | A kind of liquid silastic of the high grade of transparency and preparation method thereof |
| CN111117482A (en) * | 2019-12-31 | 2020-05-08 | 江西贝特利新材料有限公司 | Low-VOC (volatile organic compound) environment-friendly organic silicon hand-feeling coating and preparation method and construction process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255363A (en) * | 2015-10-26 | 2016-01-20 | 自贡市汇龙堂文化艺术有限公司 | Imitation animal skin coloring agent and preparation method thereof |
| CN106832306A (en) * | 2016-12-27 | 2017-06-13 | 浙江泰普森休闲用品有限公司 | A kind of application of polysiloxanes and its preparation system and polysiloxane polyurethane titanium dioxide compo and the coating |
| CN106832306B (en) * | 2016-12-27 | 2021-04-20 | 浙江泰普森休闲用品有限公司 | Polysiloxane and preparation system thereof, polysiloxane-polyurethane-titanium dioxide mixed coating and application of coating |
| CN108049201A (en) * | 2018-01-10 | 2018-05-18 | 广东天跃新材料股份有限公司 | A kind of wash fast silicon rubber leather and its coating process |
| CN108049201B (en) * | 2018-01-10 | 2019-03-19 | 广东天跃新材料股份有限公司 | A kind of wash fast silicon rubber leather and its coating process |
| CN110358304A (en) * | 2019-06-14 | 2019-10-22 | 东莞市天桉硅胶科技有限公司 | A kind of liquid silastic of the high grade of transparency and preparation method thereof |
| CN111117482A (en) * | 2019-12-31 | 2020-05-08 | 江西贝特利新材料有限公司 | Low-VOC (volatile organic compound) environment-friendly organic silicon hand-feeling coating and preparation method and construction process thereof |
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