CN103540134B - A kind of preparation method of environment-friendly type silica gel insulating sheath material - Google Patents
A kind of preparation method of environment-friendly type silica gel insulating sheath material Download PDFInfo
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- CN103540134B CN103540134B CN201210582162.1A CN201210582162A CN103540134B CN 103540134 B CN103540134 B CN 103540134B CN 201210582162 A CN201210582162 A CN 201210582162A CN 103540134 B CN103540134 B CN 103540134B
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Abstract
<b> the invention discloses the preparation method of a </b><bGreatT.Gre aT.GT environment-friendly type silica gel insulating sheath material, by respectively </b><bGreatT.Gre aT.GTA</b><bGrea tT.GreaT.GT group platinum vulcanizing agent and </b><bGreatT.Gre aT.GTB</b><bGrea tT.GreaT.GT group platinum vulcanizing agent being carried out mixing with appropriate silica gel respectively in this preparation method, mixingly obtain mixture </b><bGreatT.Gre aT.GTA</b><bGrea tT.GreaT.GT and mixture </b><bGreatT.Gre aT.GTB</b><bGrea tT.GreaT.GT respectively, and then by together mixing for mixture </b><bGreatT.Gre aT.GTA</b><bGrea tT.GreaT.GT and mixture </b><bGreatT.Gre aT.GTB</b><bGrea tT.GreaT.GT, mixing evenly after dry and namely obtain required sheath material, this sheath material is in preparation process, there is no the generation of poisonous irritating smell, avoid the pollution of surrounding environment and the discomfort that causes producers, there is the good feature of environmental protection.</b>
Description
Technical field
the present invention relates to a kind of preparation method of environment-friendly type silica gel insulating sheath material.
Background technology
on some electrified cables, need to superscribe one deck insulating sheath in the outside perimembranous of conductor.In prior art, the rubber mixing technique of insulating sheath sheath material is comparatively simple, undertaken mixing by silica gel and vulcanizing agent, vulcanizing agent is generally normal selects two two or four vulcanizing agents, it easily produces unpleasant pungent gas in mixing process, the mixing sheath material obtained also has unpleasant pungent smell, and this causes pollution to surrounding environment, also seriously compromises the health of related personnel.
Summary of the invention
the object of the invention is the shortcoming overcoming prior art, a kind of preparation method of environment-friendly type silica gel insulating sheath material is provided, thus the environmental pollution produced in minimizing sheath material production process and the Health cost to related personnel.
for achieving the above object, the technical solution used in the present invention is: a kind of preparation method of environment-friendly type silica gel insulating sheath material, comprises the following steps:
(1) take the silica gel materials that weight part is 200 parts, be divided into weight part to be A group silica gel and the B group silica gel of 100 parts;
(2) soften mixing for described A group silica gel to silica gel, the A group platinum vulcanizing agent that weight part is 1.5 ~ 1.9 parts is dropped in the described A group silica gel after softening, it is mixing to evenly obtaining mixture A, wherein, comprise in described A group platinum vulcanizing agent weight percent be respectively 40% ~ 60% containing oxygen silicone oil, the silica flour of 10% ~ 15%, the polydimethylsiloxane of 25% ~ 50%;
(3) soften mixing for described B group silica gel to silica gel, the B group platinum vulcanizing agent that weight part is 0.5 ~ 0.8 part is dropped in the described B group silica gel after softening, it is mixing to evenly obtaining mixture B, wherein, described B group platinum vulcanizing agent comprises weight percent and is respectively the divinyl tetramethyl disiloxane platinum complex of 6% ~ 25% and the polydimethylsiloxane of 75% ~ 94%;
(4) will carry out mixing through described mixture A and described mixture B, until mixing evenly rear natural room temperature dries, obtain described silicone insulation sheath material,
wherein, described step (2) is in step (4), and mixing temperature controls at 250 DEG C ~ 300 DEG C.
preferably, in described step (2), described step (3), described step (4), mixing process completes on extrusion shaping machine.
further preferably, the extruded velocity of described extrusion shaping machine is 300r/min ~ 400r/min.
preferably, in described step (2), the mixing number of times of the mixture that the described A group silica gel after softening and described A group platinum vulcanizing agent are formed is no less than 20 times.
preferably, in described step (3), the mixing number of times of the mixture that the described B group silica gel after softening and described B group platinum vulcanizing agent are formed is no less than 20 times.
preferably, in described step (4), the mixing number of times of the mixture that described mixture A and described mixture B is formed is no less than 10 times.
preferably, described mixing temperature is 265 DEG C ~ 270 DEG C.
preferably, in described step (2), in the described A group silica gel after softening, also input has weight part to be the colorant auxiliary agent of 0.4 ~ 0.6 part.
as a kind of concrete embodiment, described colorant auxiliary agent is titanium dioxide or red iron oxide.
due to the utilization of technique scheme, the present invention compared with prior art has following advantages: the preparation method of a kind of environment-friendly type silica gel insulating sheath material of the present invention, by respectively A group platinum vulcanizing agent and B group platinum vulcanizing agent being carried out mixing with appropriate silica gel respectively in this preparation method, mixingly obtain mixture A and mixture B respectively, and then by together mixing for mixture A and mixture B, mixing evenly after dry and namely obtain required sheath material, this sheath material is in preparation process, there is no the generation of poisonous irritating smell, avoid the pollution of surrounding environment and the discomfort that causes producers, there is the good feature of environmental protection.
Embodiment
below in conjunction with specific embodiment, technical scheme of the present invention is further elaborated.
embodiment 1:
in this embodiment environment-friendly type silica gel insulating sheath material preparation in mixing process carry out on extrusion shaping machine, raw material prepare as follows:
take the silica gel materials of 20kg, this silica gel materials selects the silica gel materials of not silicate-containing oil, is divided into weight to be respectively two parts of 10kg, is respectively A group silica gel and B group silica gel; Take the A group platinum vulcanizing agent of 0.16kg and the B group platinum vulcanizing agent of 0.06kg, A group platinum vulcanizing agent and B group platinum vulcanizing agent directly can buy acquisition by market, wherein comprise in A group platinum vulcanizing agent mass percent be 40% ~ 60% containing oxygen silicone oil, the silica flour of 10% ~ 15%, the polydimethylsiloxane of 25% ~ 50%, B group platinum vulcanizing agent comprises weight percent and is respectively the divinyl tetramethyl disiloxane platinum complex of 6% ~ 25% and the polydimethylsiloxane of 75% ~ 94%.Take the titanium dioxide of 0.05kg again as colorant auxiliary agent.
this preparation process is carried out successively as follows:
first by between the material roller of the A group silica gel of 10kg input extrusion shaping machine, it is mixing to softening, by together mixing thus painted to silica gel for the titanium dioxide of 0.05kg input, after A group silica gel is completely softening, to the A group platinum vulcanizing agent dropping into the above-mentioned 0.16kg taken between material roller, mixing 25 times to A group platinum vulcanizing agent and A group silica gel evenly mixing, obtain mixture A, in this process, A group platinum vulcanizing agent can add 0.15kg ~ 0.19kg, cross and the sulfuration of A group silica gel can be made at least insufficient, cross and can cause the dead silicon phenomenon of the aging appearance of silica gel at most;
then by between the material roller of the B group silica gel of 10kg input extrusion shaping machine, it is mixing to softening, after it is completely softening, to the B group platinum vulcanizing agent dropping into the above-mentioned 0.06kg taken between material roller, mixing 25 times to B group platinum vulcanizing agent and B group silica gel evenly mixing, obtain mixture B, in this process, B group platinum vulcanizing agent can add 0.05kg ~ 0.08kg, cross and the sulfuration of B group silica gel can be made at least insufficient, cross and also can cause the dead silicon phenomenon of the aging appearance of silica gel at most;
finally mixture A and mixture B is dropped into jointly carry out in the material roller of extrusion shaping machine mixing, mixing 12 times evenly mixing to mixture A and mixture B.In above mixing process, mixing temperature controls between 250 DEG C ~ 300 DEG C, be preferably 265 DEG C ~ 270 DEG C, the extruded velocity of extrusion shaping machine controls at 300r/min ~ 400r/min, be preferably 300r/min, temperature is too high, foaming phenomena appears in the too fast product surface that all can cause of extruded velocity, and temperature is too low, extruded velocity is too low, and silica gel material sulfuration can be caused insufficient, and the product after sulfuration is nonelastic;
dry under mixing for mixture A and the mixture B mixture obtained is placed in natural room temperature, so just obtain required silicone insulation sheath material.
because platinum vulcanizing agent is a kind of combined vulcanizing agent, there is the advantages such as curing temperature is low, vulcanization rate is fast, there is environmental protection and efficiently tasteless advantage compared with traditional superoxide, platinum vulcanizing agent A and platinum vulcanizing agent B are being carried out mixing with silica gel materials respectively, and by process together mixing for the mixture that obtains after mixing, there is no the generation of poisonous irritating smell, avoid to the pollution of surrounding environment with to the discomfort that producers cause, there is the good feature of environmental protection.The sheath material obtained by above-mentioned preparation process excellent physical properties after shaping, dimensional stabilizing, shrinking percentage is low, and tearing toughness compares former preparation method acquisition sheath material with resilience is all enhanced.
above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (9)
1. a preparation method for environment-friendly type silica gel insulating sheath material, is characterized in that: comprise the following steps:
(1) take the silica gel materials that weight part is 200 parts, be divided into weight part to be A group silica gel and the B group silica gel of 100 parts;
(2) soften mixing for described A group silica gel to silica gel, the A group platinum vulcanizing agent that weight part is 1.5 ~ 1.9 parts is dropped in the described A group silica gel after softening, it is mixing to evenly obtaining mixture A, wherein, comprise in described A group platinum vulcanizing agent weight percent be respectively 40% ~ 60% containing oxygen silicone oil, the silica flour of 10% ~ 15%, the polydimethylsiloxane of 25% ~ 50%;
(3) soften mixing for described B group silica gel to silica gel, the B group platinum vulcanizing agent that weight part is 0.5 ~ 0.8 part is dropped in the described B group silica gel after softening, it is mixing to evenly obtaining mixture B, wherein, described B group platinum vulcanizing agent comprises weight percent and is respectively the divinyl tetramethyl disiloxane platinum complex of 6% ~ 25% and the polydimethylsiloxane of 75% ~ 94%;
(4) will carry out mixing through described mixture A and described mixture B, until mixing evenly rear natural room temperature dries, obtain described silicone insulation sheath material,
Wherein, described step (2) is in step (4), and mixing temperature controls at 250 DEG C ~ 300 DEG C.
2. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 1, is characterized in that: in described step (2), described step (3), described step (4), mixing process completes on extrusion shaping machine.
3. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 2, is characterized in that: the extruded velocity of described extrusion shaping machine is 300r/min ~ 400r/min.
4. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 1, is characterized in that: in described step (2), and the mixing number of times of the mixture that the described A group silica gel after softening and described A group platinum vulcanizing agent are formed is no less than 20 times.
5. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 1, is characterized in that: in described step (3), and the mixing number of times of the mixture that the described B group silica gel after softening and described B group platinum vulcanizing agent are formed is no less than 20 times.
6. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 1, is characterized in that: in described step (4), and the mixing number of times of the mixture that described mixture A and described mixture B is formed is no less than 10 times.
7. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 1, is characterized in that: described mixing temperature is 265 DEG C ~ 270 DEG C.
8. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 1, is characterized in that: in described step (2), and in the described A group silica gel after softening, also input has weight part to be the colorant auxiliary agent of 0.4 ~ 0.6 part.
9. the preparation method of a kind of environment-friendly type silica gel insulating sheath material according to claim 8, is characterized in that: described colorant auxiliary agent is titanium dioxide or red iron oxide.
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| CN201210582162.1A CN103540134B (en) | 2012-12-28 | 2012-12-28 | A kind of preparation method of environment-friendly type silica gel insulating sheath material |
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| CN201210582162.1A CN103540134B (en) | 2012-12-28 | 2012-12-28 | A kind of preparation method of environment-friendly type silica gel insulating sheath material |
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| CN103540134B true CN103540134B (en) | 2016-04-06 |
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| CN107151446A (en) * | 2017-07-12 | 2017-09-12 | 合肥展游软件开发有限公司 | A kind of silica gel mobile phone protective cover and its preparation technology |
| CN107731371B (en) * | 2017-11-29 | 2024-05-28 | 泰州日顺电器发展有限公司 | Soft oil-resistant double-layer high-voltage cable for new energy automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903921A (en) * | 2006-08-07 | 2007-01-31 | 深圳市安品有机硅材料有限公司 | Bicomponent platinum catalyst vulcanizer and its preparation method |
| CN101514260A (en) * | 2009-03-13 | 2009-08-26 | 东莞市贝特利新材料有限公司 | Silastic composition and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903921A (en) * | 2006-08-07 | 2007-01-31 | 深圳市安品有机硅材料有限公司 | Bicomponent platinum catalyst vulcanizer and its preparation method |
| CN101514260A (en) * | 2009-03-13 | 2009-08-26 | 东莞市贝特利新材料有限公司 | Silastic composition and preparation method thereof |
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