CN103600446A - High-temperature resistant toxicity-reducing release agent and its preparation method - Google Patents
High-temperature resistant toxicity-reducing release agent and its preparation method Download PDFInfo
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Abstract
A high-temperature resistant toxicity-reducing release agent and its preparation method relate to a release agent and its preparation method. According to the invention, the problem that preparation and application processes of a present release agent pollute the environment, are harmful to the health and require high preparation cost and complex preparation method and a present release agent has poor demoulding effects is solved. The high-temperature resistant toxicity-reducing release agent is prepared from A, B, C and D, wherein A is silicone rubber; B is tetraethyl orthosilicate; C is any one of dibutyltindilaurate and dibutyltin dilaurate or a mixture of the above two compounds according to any ratio; D is ethyl acetate; and the mass ratio of A to B to C to D is 100:1-50:1-50:1-50. The method comprises the following steps: 1, mixing A, B, C and D; and 2, preparing the high-temperature resistant toxicity-reducing release agent. The method is benefit for environmental protection, minimizes harm to human body, and requires low cost and simple technology. The prepared release agent has high temperature resistance and good demoulding effect. The release agent provided by the invention can be used in the fields of national defense, aerospace, chemical industry and civilian use.
Description
Technical field
The present invention relates to releasing agent and preparation method thereof.
Background technology
Releasing agent is the important component in composite material process planning, it not only affects the surface property of composite, and be related to product and whether can from mould, deviate from, no matter how important product and mould, as fruit product is bonded on mould, can not from mould, deviate from, product and mould can only be scrapped, so the effect of releasing agent is of crucial importance.
Releasing agent in composite material process planning is mainly divided into oily wax class, polyvinyl alcohol, estersil class etc., but be used on gypsum mold or sand mo(u)ld tool, while making composite, after product stripping, block gypsum in gypsum mold or sand mo(u)ld tool or block gravel are easily bonded at or remain on composite product, not only affect stripping result, and affect composite material surface performance.
There are the following problems for prior art: in preparation process, need to add (noxious materials) such as (or releasing agent itself contains) (arene material) toluene or dimethylbenzene, because of its volatilization in a large number in releasing agent preparation and application process, cause the pollution of noxious material to environment, be unfavorable for environmental protection; In preparation process, need to add (or releasing agent itself contains) toluene or dimethylbenzene, not only bad for health, and have potential safety hazard; Because toluene or dimethylbenzene are noxious materials, during use, in order to alleviate the suffered harm of operating personnel, operating personnel need wear a gas mask, and operation site need have ventilation equipment, and cost of manufacture is increased, and cost of manufacture is high; Releasing agent is used on gypsum mold or sand mo(u)ld tool, while making composite, after product stripping, block gypsum or block gravel in gypsum mold or sand mo(u)ld tool are bonded at or remain on composite product, not only affect stripping result, and affect composite material surface performance; At present releasing agent there is no the related data of the resistance to elevated temperatures of serviceability temperature >=150 ℃.
Summary of the invention
The object of the invention is preparation and application process contaminated environment in order to solve existing releasing agent, be detrimental to health, preparation cost is high, preparation method is complicated and the poor problem of existing releasing agent stripping result, and high temperature resistant attenuation releasing agent and preparation method thereof is provided.
High temperature resistant attenuation releasing agent of the present invention is to be made by A, B, C and D; Wherein A is silicon rubber, B is tetraethoxysilance, C is a kind of or two kinds of mixtures that form by any ratio in dibutyl tin dilaurate, dibutyl tin laurate, and D is ethyl acetate, and the mass ratio of described A, B, C and D is 100:1～50:1～50:1～50.
The preparation method of high temperature resistant attenuation releasing agent of the present invention, carries out according to following steps:
One, by A, B, C and D, be the ratio mixing of 100:1～50:1～50:1～50 in mass ratio, obtain mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is a kind of or two kinds of mixtures that form by any ratio in dibutyl tin dilaurate, dibutyl tin laurate, and D is ethyl acetate;
Two, mixture step 1 being obtained stirs, and brushes or spray on mould after stirring, and obtains high temperature resistant attenuation releasing agent after sulfidization molding.
The present invention comprises following beneficial effect:
1, because high temperature resistant attenuation releasing agent does not contain toluene or dimethylbenzene in forming, solved because its a large amount of volatilizations cause the pollution problem of noxious material (toluene or dimethylbenzene etc.) to environment, be conducive to environmental protection;
2, because high temperature resistant attenuation releasing agent does not contain toluene or dimethylbenzene in forming, solve the potential safety hazards that are detrimental to health because of its a large amount of volatilizations, reduced the harm of noxious material (toluene or dimethylbenzene etc.) to health;
3, because preparation during high temperature resistant attenuation releasing agent, can reduce that operating personnel wear a gas mask and the ventilation equipment of operation site and reduce composite material surface maintenance cost, therefore reduced preparation cost;
4, its preparation and technique for applying are simple, both can be used for little product, also can be used for large product;
5, the high temperature resistant attenuation releasing agent of the present invention is high temperature resistant, its serviceability temperature >=150 ℃ after tested, under 150 ℃/12h condition, high temperature resistant attenuation releasing agent surface without bulge, coarse, play powder and metachromatism, and stripping result is good;
6, the high temperature resistant attenuation releasing agent of the present invention stripping result is good, high temperature resistant attenuation releasing agent is used in to gypsum mold or sand mo(u)ld tool etc., while making composite, after product stripping, block gypsum in gypsum mold or sand mo(u)ld tool or block gravel are neither bonded at also and do not remain on composite product, not only stripping result is good, and has reduced composite material surface maintenance cost;
7, high temperature resistant attenuation releasing agent of the present invention and preparation method thereof not only can be used for gypsum mold, sand mo(u)ld tool, also can be used for other mould, and can be used for national defence, Aero-Space, chemical industry and the field such as civilian.
The specific embodiment
Technical solution of the present invention is not limited to the following cited specific embodiment, also comprises any combination between each specific embodiment.
The specific embodiment one: the high temperature resistant attenuation releasing agent of present embodiment is to be made by A, B, C and D; Wherein A is silicon rubber, B is tetraethoxysilance, C is a kind of or two kinds of mixtures that form by any ratio in dibutyl tin dilaurate, dibutyl tin laurate, and D is ethyl acetate, and the mass ratio of described A, B, C and D is 100:1～50:1～50:1～50.
The specific embodiment two: present embodiment is different from the specific embodiment one: described silicon rubber is room temperature vulcanized silicone rubber.Other is identical with the specific embodiment one.
The specific embodiment three: present embodiment is different from the specific embodiment one or two: described high temperature resistant attenuation releasing agent is to be made by A, B, C and D; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate, and the mass ratio of described A, B, C and D is 100:1～50:1～50:1～50.Other is identical with the specific embodiment one or two.
The specific embodiment four: the preparation method of present embodiment is high temperature resistant attenuation releasing agent, carries out according to the following steps:
One, by A, B, C and D, be the ratio mixing of 100:1～50:1～50:1～50 in mass ratio, obtain mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is a kind of or two kinds of mixtures that form by any ratio in dibutyl tin dilaurate, dibutyl tin laurate, and D is ethyl acetate;
Two, mixture step 1 being obtained stirs, and brushes or spray on mould after stirring, and obtains high temperature resistant attenuation releasing agent after sulfidization molding.
The beneficial effect of present embodiment:
1, because high temperature resistant attenuation releasing agent does not contain toluene or dimethylbenzene in forming, solved because its a large amount of volatilizations cause the pollution problem of noxious material (toluene or dimethylbenzene etc.) to environment, be conducive to environmental protection;
2, because high temperature resistant attenuation releasing agent does not contain toluene or dimethylbenzene in forming, solve the potential safety hazards that are detrimental to health because of its a large amount of volatilizations, reduced the harm of noxious material (toluene or dimethylbenzene etc.) to health;
3, because preparation during high temperature resistant attenuation releasing agent, can reduce that operating personnel wear a gas mask and the ventilation equipment of operation site and reduce composite material surface maintenance cost, therefore reduced preparation cost;
4, its preparation and technique for applying are simple, both can be used for little product, also can be used for large product;
5, the high temperature resistant attenuation releasing agent of present embodiment is high temperature resistant, its serviceability temperature >=150 ℃ after tested, under 150 ℃/12h condition, high temperature resistant attenuation releasing agent surface without bulge, coarse, play powder and metachromatism, and stripping result is good;
6, the high temperature resistant attenuation releasing agent of present embodiment stripping result is good, high temperature resistant attenuation releasing agent is used in to gypsum mold or sand mo(u)ld tool etc., while making composite, after product stripping, block gypsum in gypsum mold or sand mo(u)ld tool or block gravel are neither bonded at also and do not remain on composite product, not only stripping result is good, and has reduced composite material surface maintenance cost;
7, high temperature resistant attenuation releasing agent of present embodiment and preparation method thereof not only can be used for gypsum mold, sand mo(u)ld tool, also can be used for other mould, and can be used for national defence, Aero-Space, chemical industry and the field such as civilian.
The specific embodiment five: present embodiment is different from the specific embodiment four: the silicon rubber described in step 1 is room temperature vulcanized silicone rubber.Other is identical with the specific embodiment four.
The specific embodiment six: present embodiment is different from the specific embodiment four or five: described in step 1 is the ratio mixing of 100:2～40:2～40:2～40 in mass ratio by A, B, C and D.Other is identical with the specific embodiment four or five.
The specific embodiment seven: present embodiment is different from one of specific embodiment four to six: described in step 1 is the ratio mixing of 100:25:25:25 in mass ratio by A, B, C and D, obtains mixture.Other is identical with one of specific embodiment four to six.
The specific embodiment eight: present embodiment is different from one of specific embodiment four to seven: described in step 1 is the ratio mixing of 100:1～50:1～50:1～50 in mass ratio by A, B, C and D, obtains mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate.Other is identical with one of specific embodiment four to seven.
Embodiment mono-:
The preparation method of the present embodiment is high temperature resistant attenuation releasing agent, carries out according to following steps:
One, by A, B, C and D, be the ratio mixing of 100:25:25:25 in mass ratio, obtain mixture; Wherein A is room temperature vulcanized silicone rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate;
Two, mixture step 1 being obtained stirs, and brushes or spray on mould after stirring, and obtains high temperature resistant attenuation releasing agent after sulfidization molding.
The high temperature resistant attenuation releasing agent that the present embodiment is prepared carries out high temperature resistant test, tests as follows:
High temperature resistant attenuation releasing agent is placed in to drying box, at 150 ℃, heats after 12h, high temperature resistant attenuation releasing agent surface is without bulge, coarse, powder and metachromatism, after tested high temperature resistant attenuation releasing agent serviceability temperature >=150 ℃.
High temperature resistant attenuation releasing agent is placed in to drying box, at 150 ℃, heat after 12h, at 160 ℃, heat 4h again, high temperature resistant attenuation releasing agent surface is still without bulge, coarse, powder and metachromatism, and the weight-loss ratios of high temperature resistant attenuation releasing agent after 160 ℃ of heating 4h are 0.68% after measured simultaneously.
High temperature resistant attenuation releasing agent prepared by the present embodiment carries out the test of stripping result proof, tests as follows:
By high temperature resistant attenuation releasing agent, after sulfuration, on mould, during with composite material forming after 150 ℃ of heating 11h of common experience, high temperature resistant attenuation releasing agent stripping result is good.
Embodiment bis-:
The preparation method of the present embodiment is high temperature resistant attenuation releasing agent, carries out according to following steps:
One, by A, B, C and D, be the ratio mixing of 100:22:22:22 in mass ratio, obtain mixture; Wherein A is room temperature vulcanized silicone rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate;
Two, mixture step 1 being obtained stirs, and brushes or spray on mould after stirring, and obtains high temperature resistant attenuation releasing agent after sulfidization molding.
The high temperature resistant attenuation releasing agent that the present embodiment is prepared carries out high temperature resistant test, tests as follows:
High temperature resistant attenuation releasing agent is placed in to drying box, at 150 ℃, heats after 12h, high temperature resistant attenuation releasing agent surface is without bulge, coarse, powder and metachromatism, after tested high temperature resistant attenuation releasing agent serviceability temperature >=150 ℃.
High temperature resistant attenuation releasing agent is placed in to drying box, at 150 ℃, heat after 12h, at 160 ℃, heat 4h again, high temperature resistant attenuation releasing agent surface is still without bulge, coarse, powder and metachromatism, and the weight-loss ratios of high temperature resistant attenuation releasing agent after 160 ℃ of heating 4h are 0.97% after measured simultaneously.
High temperature resistant attenuation releasing agent prepared by the present embodiment carries out the test of stripping result proof, tests as follows:
By high temperature resistant attenuation releasing agent, after sulfuration, on mould, during with composite material forming after 150 ℃ of heating 11h of common experience, high temperature resistant attenuation releasing agent stripping result is good.
Embodiment tri-:
The preparation method of the present embodiment is high temperature resistant attenuation releasing agent, carries out according to following steps:
One, by A, B, C and D, be the ratio mixing of 100:18:18:18 in mass ratio, obtain mixture; Wherein A is room temperature vulcanized silicone rubber, and B is tetraethoxysilance, and C is dibutyl tin dilaurate, and D is ethyl acetate;
Two, mixture step 1 being obtained stirs, and brushes or spray on mould after stirring, and obtains high temperature resistant attenuation releasing agent after sulfidization molding.
The high temperature resistant attenuation releasing agent that the present embodiment is prepared carries out high temperature resistant test, tests as follows:
High temperature resistant attenuation releasing agent is placed in to drying box, at 150 ℃, heats after 12h, high temperature resistant attenuation releasing agent surface is without bulge, coarse, powder and metachromatism, after tested high temperature resistant attenuation releasing agent serviceability temperature >=150 ℃.
High temperature resistant attenuation releasing agent is placed in to drying box, at 150 ℃, heat after 12h, at 160 ℃, heat 4h again, high temperature resistant attenuation releasing agent surface is still without bulge, coarse, powder and metachromatism, and the weight-loss ratios of high temperature resistant attenuation releasing agent after 160 ℃ of heating 4h are 1.15% after measured simultaneously.
High temperature resistant attenuation releasing agent prepared by the present embodiment carries out the test of stripping result proof, tests as follows:
By high temperature resistant attenuation releasing agent on mould after sulfuration, during with composite material forming, after 150 ℃ of heating 11h of common experience, high temperature resistant attenuation releasing agent stripping result is good.
The present invention is high temperature resistant attenuation releasing agent is serviceability temperature >=150 ℃ after tested, weight-loss ratio≤1.46% of high temperature resistant attenuation releasing agent after 160 ℃ of heating 4h, and high temperature resistant attenuation releasing agent is after sulfuration, on mould, during with composite material forming after 150 ℃ of heating 11h of common experience, high temperature resistant attenuation releasing agent stripping result is good.
Claims (8)
1. high temperature resistant attenuation releasing agent, is characterized in that high temperature resistant attenuation releasing agent is to be made by A, B, C and D; Wherein A is silicon rubber, B is tetraethoxysilance, C is a kind of or two kinds of mixtures that form by any ratio in dibutyl tin dilaurate, dibutyl tin laurate, and D is ethyl acetate, and the mass ratio of described A, B, C and D is 100:1～50:1～50:1～50.
2. high temperature resistant attenuation releasing agent according to claim 1, is characterized in that described silicon rubber is room temperature vulcanized silicone rubber.
3. high temperature resistant attenuation releasing agent according to claim 1, is characterized in that described high temperature resistant attenuation releasing agent is to be made by A, B, C and D; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate, and the mass ratio of described A, B, C and D is 100:1～50:1～50:1～50.
4. a method of preparing high temperature resistant attenuation releasing agent claimed in claim 1, is characterized in that it carries out according to following steps:
One, by A, B, C and D, be the ratio mixing of 100:1～50:1～50:1～50 in mass ratio, obtain mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is a kind of or two kinds of mixtures that form by any ratio in dibutyl tin dilaurate, dibutyl tin laurate, and D is ethyl acetate;
Two, mixture step 1 being obtained stirs, and brushes or spray on mould after stirring, and obtains high temperature resistant attenuation releasing agent after sulfidization molding.
5. the preparation method of high temperature resistant attenuation releasing agent according to claim 4, is characterized in that the silicon rubber described in step 1 is room temperature vulcanized silicone rubber.
6. the preparation method of high temperature resistant attenuation releasing agent according to claim 4, it is characterized in that described in step 1 by A, B, C and D in mass ratio for the ratio of 100:2～40:2～40:2～40 is mixed.
7. the preparation method of high temperature resistant attenuation releasing agent according to claim 4, is characterized in that A, B, C and D are mixed for the ratio of 100:25:25:25 in mass ratio described in step 1, obtains mixture.
8. the preparation method of high temperature resistant attenuation releasing agent according to claim 4, is characterized in that A, B, C and D are mixed for the ratio of 100:1～50:1～50:1～50 in mass ratio described in step 1, obtains mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate.
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Cited By (6)
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| CN103962510A (en) * | 2014-03-31 | 2014-08-06 | 湖北三江航天江北机械工程有限公司 | Net-shape sand core mold forming technology |
| CN104479842A (en) * | 2014-12-18 | 2015-04-01 | 蒙城县科技创业服务中心 | Green and environment-friendly concrete release agent and preparation method thereof |
| CN104479837A (en) * | 2014-12-18 | 2015-04-01 | 蒙城县科技创业服务中心 | Safe and environment-friendly concrete mold release agent and preparation method thereof |
| CN105170882A (en) * | 2015-07-27 | 2015-12-23 | 芜湖黄燕实业有限公司 | High-storability release agent and preparation method thereof |
| CN109705951A (en) * | 2018-12-05 | 2019-05-03 | 珠海凯利得新材料有限公司 | A kind of release agent and preparation method and release method suitable for silicon carbide ceramics wax green |
| CN110733150A (en) * | 2019-10-29 | 2020-01-31 | 临沂大学 | spraying type plastic release agent |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962510A (en) * | 2014-03-31 | 2014-08-06 | 湖北三江航天江北机械工程有限公司 | Net-shape sand core mold forming technology |
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| CN104479837A (en) * | 2014-12-18 | 2015-04-01 | 蒙城县科技创业服务中心 | Safe and environment-friendly concrete mold release agent and preparation method thereof |
| CN105170882A (en) * | 2015-07-27 | 2015-12-23 | 芜湖黄燕实业有限公司 | High-storability release agent and preparation method thereof |
| CN109705951A (en) * | 2018-12-05 | 2019-05-03 | 珠海凯利得新材料有限公司 | A kind of release agent and preparation method and release method suitable for silicon carbide ceramics wax green |
| CN110733150A (en) * | 2019-10-29 | 2020-01-31 | 临沂大学 | spraying type plastic release agent |
| CN110733150B (en) * | 2019-10-29 | 2022-02-22 | 临沂大学 | Spraying type plastic release agent |
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