CN103600446B - High temperature resistant attenuation releasing agent - Google Patents
High temperature resistant attenuation releasing agent Download PDFInfo
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- CN103600446B CN103600446B CN201310520473.XA CN201310520473A CN103600446B CN 103600446 B CN103600446 B CN 103600446B CN 201310520473 A CN201310520473 A CN 201310520473A CN 103600446 B CN103600446 B CN 103600446B
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Abstract
High temperature resistant attenuation releasing agent, it relates to releasing agent.The present invention will solve the Synthesis and applications process contamination environment of existing releasing agent, health risk, preparation cost is high, preparation method is complicated and existing releasing agent stripping result is poor problem.The present invention is high temperature resistant, and attenuation releasing agent is made up of 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, D is 100:1 ~ 50:1 ~ 50:1 ~ 50.Its method: one, A, B, C and D are mixed; Two, high temperature resistant attenuation releasing agent is prepared.The inventive method is beneficial to environmental protection, reduces harm, cost is low, technique is simple, prepared releasing agent is high temperature resistant, stripping result good.The present invention can be used for national defence, Aero-Space, chemical industry and civil area.
Description
Technical field
The present invention relates to releasing agent.
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 deviate from from mould, no matter how important product and mould, as fruit product is bonded on mould, can not deviate from from mould, then product and mould can only be scrapped, and therefore 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, when 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: need in preparation process to add (or releasing agent itself contains) (arene material) toluene or dimethylbenzene etc. (noxious material), because it volatilizees in a large number in releasing agent Synthesis and applications process, cause noxious material to the pollution of environment, be unfavorable for environmental protection; Need in preparation process to add (or releasing agent itself contains) toluene or dimethylbenzene, not only bad for health, and there is potential safety hazard; Because toluene or dimethylbenzene are noxious materials, endanger to alleviate suffered by operating personnel during use, 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, when making composite, after product stripping, the block gypsum in gypsum mold or sand mo(u)ld tool or block gravel are bonded at or remain on composite product, not only affect stripping result, and affect composite material surface performance; Current releasing agent there is no the related data of the resistance to elevated temperatures of serviceability temperature >=150 DEG C.
Summary of the invention
The object of the invention is the Synthesis and applications process contamination environment in order to solve existing releasing agent, being detrimental to health, preparation cost is high, preparation method is complicated and existing releasing agent stripping result is poor problem, high temperature resistant attenuation releasing agent is provided.
High temperature resistant attenuation releasing agent of the present invention is made up of 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.
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 in mass ratio 100:1 ~ 50:1 ~ 50:1 ~ 50 ratio mixing, obtain mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate;
Two, the mixture that step one obtains is stirred, brush after stirring or spray on mould, after sulfidization molding, namely obtaining high temperature resistant attenuation releasing agent.
The present invention comprises following beneficial effect:
1, because not containing toluene or dimethylbenzene in high temperature resistant attenuation releasing agent composition, solve because it volatilizees in a large number and cause noxious material (toluene or dimethylbenzene etc.) to the pollution problem of environment, being conducive to environmental protection;
2, because not containing toluene or dimethylbenzene in high temperature resistant attenuation releasing agent composition, solve the potential safety hazard be detrimental to health because it volatilizees in a large number, reduce noxious material (toluene or dimethylbenzene etc.) to the harm of health;
3, because preparation high temperature resistant attenuation releasing agent time, can reduce operating personnel wear a gas mask and operation site ventilation equipment and reduce composite material surface maintenance cost, because this reducing preparation cost;
4, its preparations and applicatio is simple for process, both can be used for little product, also can be used for large product;
5, the present invention's high temperature resistant attenuation releasing agent is high temperature resistant, after tested its serviceability temperature >=150 DEG C, and under 150 DEG C/12h condition, high temperature resistant attenuation releasing agent surface is without bulge, coarse, powder and metachromatism, and stripping result is good;
6, the present invention's high temperature resistant attenuation releasing agent stripping result is good, high temperature resistant attenuation releasing agent is used in gypsum mold or sand mo(u)ld tool etc., when making composite, after product stripping, block gypsum in gypsum mold or sand mo(u)ld tool or block gravel are neither bonded at and also do not remain on composite product, not only stripping result is good, and decreases 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.
Detailed description of the invention
Technical solution of the present invention is not limited to following cited detailed description of the invention, also comprises any combination between each detailed description of the invention.
Detailed description of the invention one: the high temperature resistant attenuation releasing agent of present embodiment is made up of 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.
Detailed description of the invention two: present embodiment and detailed description of the invention one unlike: described silicon rubber is room temperature vulcanized silicone rubber.Other is identical with detailed description of the invention one.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two unlike: described high temperature resistant attenuation releasing agent is made up of 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 detailed description of the invention one or two.
Detailed description of the invention four: the preparation method of present embodiment is high temperature resistant attenuation releasing agent, carry out according to the following steps:
One, by A, B, C and D be in mass ratio 100:1 ~ 50:1 ~ 50:1 ~ 50 ratio mixing, obtain mixture; Wherein A is silicon rubber, and B is tetraethoxysilance, and C is dibutyl tin laurate, and D is ethyl acetate;
Two, the mixture that step one obtains is stirred, brush after stirring or spray on mould, after sulfidization molding, namely obtaining high temperature resistant attenuation releasing agent.
The beneficial effect of present embodiment:
1, because not containing toluene or dimethylbenzene in high temperature resistant attenuation releasing agent composition, solve because it volatilizees in a large number and cause noxious material (toluene or dimethylbenzene etc.) to the pollution problem of environment, being conducive to environmental protection;
2, because not containing toluene or dimethylbenzene in high temperature resistant attenuation releasing agent composition, solve the potential safety hazard be detrimental to health because it volatilizees in a large number, reduce noxious material (toluene or dimethylbenzene etc.) to the harm of health;
3, because preparation high temperature resistant attenuation releasing agent time, can reduce operating personnel wear a gas mask and operation site ventilation equipment and reduce composite material surface maintenance cost, because this reducing preparation cost;
4, its preparations and applicatio is simple for process, both can be used for little product, also can be used for large product;
5, present embodiment high temperature resistant attenuation releasing agent is high temperature resistant, after tested its serviceability temperature >=150 DEG C, and under 150 DEG C/12h condition, high temperature resistant attenuation releasing agent surface is without bulge, coarse, powder and metachromatism, and stripping result is good;
6, present embodiment high temperature resistant attenuation releasing agent stripping result is good, high temperature resistant attenuation releasing agent is used in gypsum mold or sand mo(u)ld tool etc., when making composite, after product stripping, block gypsum in gypsum mold or sand mo(u)ld tool or block gravel are neither bonded at and also do not remain on composite product, not only stripping result is good, and decreases 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.
Detailed description of the invention five: present embodiment and detailed description of the invention four unlike: the silicon rubber described in step one is room temperature vulcanized silicone rubber.Other is identical with detailed description of the invention four.
Detailed description of the invention six: present embodiment and detailed description of the invention four or five unlike: described in step one by A, B, C and D in mass ratio for the ratio of 100:2 ~ 40:2 ~ 40:2 ~ 40 mixes.Other is identical with detailed description of the invention four or five.
Detailed description of the invention seven: present embodiment and one of detailed description of the invention four to six unlike: described in step one by A, B, C and D in mass ratio for the ratio of 100:25:25:25 mixes, obtain mixture.Other is identical with one of detailed description of the invention four to six.
Detailed description of the invention eight: present embodiment and one of detailed description of the invention four to seven unlike: described in step one by A, B, C and D in mass ratio for the ratio of 100:1 ~ 50:1 ~ 50:1 ~ 50 mixes, obtain 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 detailed description of the invention four to seven.
Embodiment one:
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 in mass ratio 100:25:25:25 ratio mixing, 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, the mixture that step one obtains is stirred, brush after stirring or spray on mould, after sulfidization molding, namely obtaining high temperature resistant attenuation releasing agent.
The high temperature resistant attenuation releasing agent prepared by the present embodiment carries out high temperature resistant test, tests as follows:
High temperature resistant attenuation releasing agent is placed in drying box, and heat 12h at 150 DEG C after, 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 DEG C.
High temperature resistant attenuation releasing agent is placed in drying box, heat 12h at 150 DEG C after, 4h is heated again at 160 DEG C, high temperature resistant attenuation releasing agent surface is still without bulge, coarse, powder and metachromatism, and the weight-loss ratio of high temperature resistant attenuation releasing agent after 160 DEG C of heating 4h is 0.68% after measured simultaneously.
The high temperature resistant attenuation releasing agent prepared by the present embodiment carries out stripping result proves test, tests as follows:
By high temperature resistant attenuation releasing agent after sulfuration, on mould with jointly experience during composite material forming 150 DEG C heat 11h after, high temperature resistant attenuation releasing agent stripping result is good.
Embodiment two:
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 in mass ratio 100:22:22:22 ratio mixing, 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, the mixture that step one obtains is stirred, brush after stirring or spray on mould, after sulfidization molding, namely obtaining high temperature resistant attenuation releasing agent.
The high temperature resistant attenuation releasing agent prepared by the present embodiment carries out high temperature resistant test, tests as follows:
High temperature resistant attenuation releasing agent is placed in drying box, and heat 12h at 150 DEG C after, 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 DEG C.
High temperature resistant attenuation releasing agent is placed in drying box, heat 12h at 150 DEG C after, 4h is heated again at 160 DEG C, high temperature resistant attenuation releasing agent surface is still without bulge, coarse, powder and metachromatism, and the weight-loss ratio of high temperature resistant attenuation releasing agent after 160 DEG C of heating 4h is 0.97% after measured simultaneously.
The high temperature resistant attenuation releasing agent prepared by the present embodiment carries out stripping result proves test, tests as follows:
By high temperature resistant attenuation releasing agent after sulfuration, on mould with jointly experience during composite material forming 150 DEG C heat 11h after, high temperature resistant attenuation releasing agent stripping result is good.
Embodiment three:
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 in mass ratio 100:18:18:18 ratio mixing, 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, the mixture that step one obtains is stirred, brush after stirring or spray on mould, after sulfidization molding, namely obtaining high temperature resistant attenuation releasing agent.
The high temperature resistant attenuation releasing agent prepared by the present embodiment carries out high temperature resistant test, tests as follows:
High temperature resistant attenuation releasing agent is placed in drying box, and heat 12h at 150 DEG C after, 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 DEG C.
High temperature resistant attenuation releasing agent is placed in drying box, heat 12h at 150 DEG C after, 4h is heated again at 160 DEG C, high temperature resistant attenuation releasing agent surface is still without bulge, coarse, powder and metachromatism, and the weight-loss ratio of high temperature resistant attenuation releasing agent after 160 DEG C of heating 4h is 1.15% after measured simultaneously.
The high temperature resistant attenuation releasing agent prepared by the present embodiment carries out stripping result proves test, tests as follows:
By high temperature resistant attenuation releasing agent on mould after sulfuration, with jointly experience during composite material forming 150 DEG C heat 11h after, high temperature resistant attenuation releasing agent stripping result is good.
The present invention is high temperature resistant attenuation releasing agent serviceability temperature >=150 DEG C after tested, weight-loss ratio≤1.46% of high temperature resistant attenuation releasing agent after 160 DEG C of heating 4h, and high temperature resistant attenuation releasing agent is after sulfuration, on mould with jointly experience during composite material forming 150 DEG C heat 11h after, high temperature resistant attenuation releasing agent stripping result is good.
Claims (4)
1. high temperature resistant attenuation releasing agent, is characterized in that high temperature resistant attenuation releasing agent is made up of A, B, C and D; Wherein A is silicon rubber, and B is ethyl orthosilicate, 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; Its preparation method is: one, by A, B, C and D in mass ratio for the ratio of 100:1 ~ 50:1 ~ 50:1 ~ 50 mixes, obtain mixture; Two, the mixture that step one obtains is stirred, brush after stirring or spray on mould, after sulfidization molding, namely obtaining high temperature resistant attenuation releasing agent.
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, it is characterized in that described in step one by A, B, C and D in mass ratio for the ratio of 100:2 ~ 40:2 ~ 40:2 ~ 40 mixes.
4. high temperature resistant attenuation releasing agent according to claim 1, it is characterized in that described in step one by A, B, C and D in mass ratio for the ratio of 100:25:25:25 mixes, obtain mixture.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2813028C1 (en) * | 2023-11-29 | 2024-02-06 | федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) | Mixture for making moulds and cores and method for its preparation |
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| CN103962510B (en) * | 2014-03-31 | 2016-05-04 | 湖北三江航天江北机械工程有限公司 | Dead size core mould moulding process |
| 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 |
| CN110733150B (en) * | 2019-10-29 | 2022-02-22 | 临沂大学 | Spraying type plastic release agent |
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Cited By (1)
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| RU2813028C1 (en) * | 2023-11-29 | 2024-02-06 | федеральное государственное бюджетное образовательное учреждение высшего образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" (НГТУ) | Mixture for making moulds and cores and method for its preparation |
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