CN104406880A - Method for testing burning resisting effect of burning resisting agent of room temperature vulcanization mold rubber - Google Patents
Method for testing burning resisting effect of burning resisting agent of room temperature vulcanization mold rubber Download PDFInfo
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- CN104406880A CN104406880A CN201410652134.1A CN201410652134A CN104406880A CN 104406880 A CN104406880 A CN 104406880A CN 201410652134 A CN201410652134 A CN 201410652134A CN 104406880 A CN104406880 A CN 104406880A
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Abstract
The invention relates to a method for testing the burning resisting effect of a burning resisting agent of room temperature vulcanization mold rubber. The method comprises the following steps: (1), the burning resisting agent is uniformly mixed with an agent A, then agent B is added, and the mixture is uniformly mixed, subjected to bubble removal and poured into a mold for curing; (2), a rubber piece after curing is lifted up and weighed to obtain the weight m; and (3), the rubber piece is immersed into styrene, taken out after immersion, dried, cooled and weighed again to obtain the weight m2, the weight loss ratio of the rubber piece is obtained through calculation, and evaluation of the burning resisting effect is finished. According to the method, the selection requirement for burning resisting capacity of the mold rubber is met, selectivity of the burning resisting agent is optimized, the repeatability of obtained result is better, evaluation meets the requirement for mold turning times of the mold rubber, and the method has a positive guiding function on production and is worth vigorous popularizing.
Description
Technical field
The present invention relates to the method for testing of the anti-burning effect of a kind of room temperature vulcanization mold glue resistance to burning agent.
Background technology
Room temperature vulcanization mold glue is the novel substance that the fifties in this century end early sixties starts to occur.This silicon rubber is working fluid before administration, after using, as poured into, sealing, encapsulate, copy, does not need heating can become the elastic body with certain mechanical property from liquid at normal temperatures.Room temperature vulcanization mold glue has the various premium properties of heat vulcanizate, but uses than heat vulcanizate conveniently, and thus application surface is wider.But as mold glue, usually need to carry out turning over mould, this has higher requirement to the anti-burning effect of room temperature vulcanization mold glue resistance to burning agent.
Anti-burning measure of merit, as the term suggests be the anti-burning effect detecting resistance to burning agent, whether resistance to burning, application is very wide, being applicable to the anti-burning effect detection of the room temperature vulcanization mold glue resistance to burning agent of the industries such as military project, medicine equipment, chemical industry, automobile, electronic devices and components, storage, can detecting itself having the resistance to product required that burns equally.
The method of the anti-burning measure of merit of resistance to burning agent also not relevant at present, thus find a kind of highly sensitive, simply easy to operate, acquired results is reproducible, test result is more stable, more reliable, more optimize resistance to burning agent selectivity, the detection method that accurately can contrast the features such as the ability of anti-burning of resistance to burning agent has great importance.
Summary of the invention
The object of the present invention is to provide the method for testing of the anti-burning effect of a kind of room temperature vulcanization mold glue resistance to burning agent, can make more to optimize resistance to burning agent selectivity, more stable and more reliable.
For reaching this object, the present invention by the following technical solutions:
The invention provides the method for testing of the anti-burning effect of a kind of room temperature vulcanization mold glue resistance to burning agent on the one hand, described method comprises the steps:
(1) resistance to burning agent and A agent are mixed, then add B agent Homogeneous phase mixing, described A agent is liquid silastic, and B agent is hardening agent, then carries out row's bubble, pours mold cured into;
(2) uncovered by the film after solidification, weigh m;
(3) film is immersed styrene, take out after soaking, dry, cooling, weighs m again
2.
The present invention is after resistance to burning agent being mixed with liquid silastic and hardening agent, takes off and immerse in styrene after mould plastic, and then uniform temperature and taking out in the time, dries.Quality before its object is to the quality after being dried by contrast and soaking is contrasted, and judges the anti-burning effect of resistance to burning agent.
In actual application, apply to the characteristic performance situation of actual production process and product according to resistance to burning agent, under identical experiment condition, when identical resistance to burning agent addition, resistance to burning agent weight-loss ratio is less, then the anti-burning effect of this resistance to burning agent is better.
Described process, when practical operation, often organizes at least parallel 2 groups of resistance to burning agent.
Described A agent is liquid silastic, and B agent is hardening agent.
Preferably, described resistance to burning agent and A agent weight ratio are 100:0.5-100:4, and being preferably 100:1-100:2, such as, can be 100:1,100:1.2,100:1.4,100:1.5,100:1.6,100:1.8 or 100:2.
The described dosage of resistance to burning can affect the physical property of glue too much, and general range is preferably at 1-2%.
Preferably, the weight ratio of described A agent and B agent is 100:1-100:2.5, and being preferably 100:1.8-100:2.2, such as, can be 100:1.8,100:1.9,100:2,100:2.1 or 100:2.2.
Described B agent dosage can have impact to glue physical and mechanical properties more than 2.2%.
Preferably, Homogeneous phase mixing, by stirring, the uniform mix of obtained resistance to burning agent, A agent and B agent;
Preferably, described stirring is stirred for using glass bar, and described mixing time is 1-8 minute, and being preferably 1-3 minute, such as, can be 1,2,3,4,5,6,7 or 8 minute.
Described row's bubble process is: the potpourri mixed is placed on row's bubble 1-8 minute in vacuum drying chamber, being preferably 2-5 minute, such as, can be 1,2,3,4,5,6,7 or 8 minute;
Preferably, the vacuum tightness of described vacuum drying chamber is-0.75 ~-0.1MPa.
The shape of described mould is long 4-8mm, wide 4-8mm, thick 2-6mm, and being preferably long 5mm, wide 5mm, thick 2mm, such as, can be long 4mm, 5mm, 6mm, 7mm or 8mm, wide 4mm, 5mm, 6mm, 7mm or 8mm, thick 2mm, 3mm, 4mm, 5mm or 6mm;
Preferably, described potpourri will be coated with a release agent by mould before pouring mould into, and dried;
Preferably, described potpourri is poured mold process into and is: pour potpourri into mould reposefully, and the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit.
The necessary level of testing table that described mould is placed, can not tilt;
Described solidification temperature is 18-32 DEG C, is preferably 22-28 DEG C; More preferably 25 DEG C, such as, can make 18 DEG C, 20 DEG C, 22 DEG C, 25 DEG C, 28 DEG C, 30 DEG C or 32 DEG C;
Preferably, described set time is 20-30 hour, is preferably 23-27 hour; More preferably 24 hours can be such as 20 hours, 21 hours, 22 hours, 23 hours, 24 hours, 25 hours, 26 hours, 27 hours, 28 hours, 29 hours or 30 hours.
It is 160-180 hour that described film immerses the cinnamic time, be preferably 162-175 hour, more preferably 165-170 hour can be such as 160 hours, 162 hours, 165 hours, 168 hours, 170 hours, 172 hours, 175 hours, 178 hours or 180 hours;
Preferably, the baking temperature of the film after described immersion is 130-160 DEG C, is preferably 150-160 DEG C; More preferably 150 DEG C can be such as 130 DEG C, 135 DEG C, 140 DEG C, 145 DEG C, 150 DEG C, 155 DEG C or 160 DEG C;
Preferably, the drying time of the film after described immersion is 0.8-3.0 hour, such as, can be 0.8 hour, 1.0 hours, 1.2 hours, 1.5 hours, 1.8 hours, 2.0 hours, 2.2 hours, 2.5 hours, 2.8 hours or 3.0 hours;
Described baking temperature and drying time, when the same batch of anti-burning strength test of the different resistance to burning agent of contrast is tested, with consistent baking temperature and consistent drying time;
Preferably, described in weigh and be room temperature and weigh, described electronic balance precision is 0.0001 gram.
The weight-loss ratio formula of described film is
Exemplary a kind of detection method for the anti-burning effect of room temperature vulcanization mold glue resistance to burning agent, comprises the steps:
Resistance to burning agent and A agent mix by (1 '), add B agent Homogeneous phase mixing again, the weight ratio of described resistance to burning agent and A agent is the weight ratio of 100:1-100:2, A agent and B agent is 100:1.8-100:2.2, stir 1-3 minute, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: the potpourri mixed is placed on row's bubble 2-5 minute in vacuum drying chamber, the vacuum tightness of described vacuum drying chamber is-0.75 ~-0.1MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene and soak 165-170 hour, be placed in 150 DEG C of thermostatic drying chambers dry 1 hour, to be cooled to room temperature and to weigh its quality be m
1,
often kind of incendiary agent at least parallel 2 groups in contrast,
complete the evaluation of anti-burning effect.
Compared with prior art, the present invention has following beneficial effect:
1, simply easy to operate, acquired results is reproducible, and test result is more stable, more reliable;
2, resistance to burning agent selectivity is more optimized, evaluate and meet the requirement that mold glue turns over mould number of times;
3, accurately can contrast the ability of anti-burning of resistance to burning agent, to production, there is positive directive function, be worth promoting.
Embodiment
For further setting forth the technological means and effect thereof that the present invention takes, further illustrate technical scheme of the present invention below in conjunction with the preferred embodiments of the present invention, but the present invention is not confined in scope of embodiments.
Embodiment 1
A detection for the anti-burning effect of room temperature vulcanization mold glue 698# resistance to burning agent, comprises the steps:
Resistance to for 698# burning agent and A agent mix by (1 '), then add B agent Homogeneous phase mixing, and the weight ratio of described resistance to burning agent and A agent is the weight ratio of 100:1, A agent and B agent is 100:1.8, stirs 1 minute, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: be placed in vacuum drying chamber by the potpourri mixed and arrange bubble 3 minutes, the vacuum tightness of described vacuum drying chamber is-0.75MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene to soak 160 hours, be placed in 155 DEG C of thermostatic drying chambers dry 1.5 hours, to be cooled to room temperature and to weigh its quality be m
1,
often kind of incendiary agent at least parallel 2 groups in contrast,
Embodiment 2
A detection for the anti-burning effect of room temperature vulcanization mold glue 698# resistance to burning agent, comprises the steps:
Resistance to for 698# burning agent and A agent mix by (1 '), then add B agent Homogeneous phase mixing, and the weight ratio of described resistance to burning agent and A agent is the weight ratio of 100:2, A agent and B agent is 100:2.2, stirs 3 minutes, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: be placed in vacuum drying chamber by the potpourri mixed and arrange bubble 4 minutes, the vacuum tightness of described vacuum drying chamber is-0.10MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene to soak 175 hours, be placed in 160 DEG C of thermostatic drying chambers dry 2 hours, to be cooled to room temperature and to weigh its quality be m
1,
often kind of incendiary agent at least parallel 2 groups in contrast,
Embodiment 3
A detection for the anti-burning effect of room temperature vulcanization mold glue 698# resistance to burning agent, comprises the steps:
Resistance to for 698# burning agent and A agent mix by (1 '), then add B agent Homogeneous phase mixing, and the weight ratio of described resistance to burning agent and A agent is the weight ratio of 100:1.5, A agent and B agent is 100:2, stirs 2 minutes, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: be placed in vacuum drying chamber by the potpourri mixed and arrange bubble 5 minutes, the vacuum tightness of described vacuum drying chamber is-0.09MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene to soak 168 hours, be placed in 150 DEG C of thermostatic drying chambers dry 1 hour, to be cooled to room temperature and to weigh its quality be m
1,
often kind of incendiary agent at least parallel 2 groups in contrast,
Embodiment 4
A detection for the anti-burning effect of room temperature vulcanization mold glue 992# resistance to burning agent, comprises the steps:
Resistance to for 992# burning agent and A agent mix by (1 '), then add B agent Homogeneous phase mixing, and the weight ratio of described resistance to burning agent and A agent is the weight ratio of 100:1.5, A agent and B agent is 100:2, stirs 2 minutes, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: be placed in vacuum drying chamber by the potpourri mixed and arrange bubble 5 minutes, the vacuum tightness of described vacuum drying chamber is-0.1MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene to soak 168 hours, be placed in 150 DEG C of thermostatic drying chambers dry 1 hour, to be cooled to room temperature and to weigh its quality be m
1,
often kind of incendiary agent at least parallel 2 groups in contrast,
Embodiment 5
A detection for the anti-burning effect of room temperature vulcanization mold glue 24# resistance to burning agent, comprises the steps:
Resistance to for 24# burning agent and A agent mix by (1 '), then add B agent Homogeneous phase mixing, and the weight ratio of described resistance to burning agent and A agent is the weight ratio of 100:1.5, A agent and B agent is 100:2, stirs 2 minutes, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: be placed in vacuum drying chamber by the potpourri mixed and arrange bubble 5 minutes, the vacuum tightness of described vacuum drying chamber is-0.1MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene to soak 168 hours, be placed in 150 DEG C of thermostatic drying chambers dry 1 hour, to be cooled to room temperature and to weigh its quality be m
1,
often kind of incendiary agent at least parallel 2 groups in contrast,
Consolidated statement 1 can find, a kind of room temperature vulcanization mold glue provided by the invention resistance to burning agent anti-burning effect testing method is feasible, the resistance to burning agent of same 698#, under different parameters test, can be tested its weight-loss ratio, illustrate that the parameter area that method provided by the invention is arranged is feasible.And from the resistance to burning agent of 698#, 992# and 24# tri-under same experiment parameter, the glue weight-loss ratio of 698# resistance to burning agent is less, illustrate that resistance to burning effect will be got well.A kind of brand-new method of testing provided by the invention, simply easy to operate, acquired results is reproducible, and test result is stable, reliable; Method provided by the invention accurately can contrast the ability of anti-burning of resistance to burning agent, has positive directive function, be worth promoting to production.
Applicant states, the present invention illustrates method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not namely mean that the present invention must rely on above-mentioned method detailed and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (9)
1. a method of testing for the anti-burning effect of room temperature vulcanization mold glue resistance to burning agent, it is characterized in that, described method comprises the steps:
(1) resistance to burning agent and A agent are mixed, then add B agent Homogeneous phase mixing, described A agent is liquid silastic, and B agent is hardening agent, then carries out row's bubble, pours mold cured into;
(2) uncovered by the film after solidification, weigh m;
(3) film is immersed styrene, take out after soaking, dry, cooling, weighs m again
2, calculate film weight-loss ratio, complete the evaluation of anti-burning effect.
2. method according to claim 1, is characterized in that, described resistance to burning agent and A agent weight ratio are 100:1-100:3, is preferably 100:1-100:2;
Preferably, the weight ratio of described A agent and B agent is 100:1-100:2.5, is preferably 100:1.8-100:2.2.
3. method according to claim 1 and 2, is characterized in that, described Homogeneous phase mixing, after stirring, and the uniform mix of obtained resistance to burning agent, A agent and B agent;
Preferably, described stirring is stirred for using glass bar, and described mixing time is 1-5 minute, is preferably 1-3 minute.
4. the method according to any one of claim 1-3, is characterized in that, described row's bubble process is: the potpourri mixed is placed on row's bubble 2-5 minute in vacuum drying chamber, is preferably 2-3 minute;
Preferably, the vacuum tightness of described vacuum drying chamber is-0.75 ~-0.1MPa.
5. the method according to any one of claim 1-4, is characterized in that, the shape of described mould is long 4-8mm, wide 4-8mm and thick 2-4mm, is preferably long 5mm, wide 5mm and thick 2mm;
Preferably, described potpourri will be coated with a release agent by mould before pouring mould into, and dried;
Preferably, described potpourri is poured mold process into and is: pour potpourri into mould reposefully, and the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit.
6. the method according to any one of claim 1-5, is characterized in that, described solidification temperature is 18-32 DEG C, is preferably 22-28 DEG C; More preferably 25 DEG C;
Preferably, described set time is 20-30 hour, is preferably 23-27 hour; More preferably 24 hours.
7. the method according to any one of claim 1-6, is characterized in that, it is 160-180 hour that described film immerses the cinnamic time, is preferably 162-175 hour, more preferably 165-170 hour;
Preferably, the baking temperature of the film after described immersion is 150-180 DEG C, is preferably 150-160 DEG C; More preferably 150 DEG C;
Preferably, the drying time of the film after described immersion is 1-1.5 hour;
Preferably, described in weigh and be room temperature and weigh, described electronic balance precision is 0.0001 gram.
8. the method according to any one of claim 1-6, is characterized in that, the weight-loss ratio formula of film is
9. the method according to any one of claim 1-8, is characterized in that, described method comprises the steps:
Resistance to burning agent and A agent mix by (1 '), add B agent Homogeneous phase mixing again, described A agent is liquid silastic, B agent is hardening agent, the weight ratio of described resistance to burning agent and A agent is 100:1-100:2, the weight ratio of A agent and B agent is 100:1.8-100:2.2, stirs 1-3 minute, the uniform mix of obtained resistance to burning agent, A agent and B agent;
(2 ') row bubble: the potpourri mixed is placed on row's bubble 2-5 minute in vacuum drying chamber, the vacuum tightness of described vacuum drying chamber is-0.75 ~-0.1MPa;
(3) be coated with a release agent by mould, and dry, then pour said mixture into mould reposefully, the even levelling of potpourri, strikes off along template face with scraper, makes it equal with the upper recess surface of mould without pit;
(4) mould is placed on cured at room temperature after 24 hours, takes film electronic balance off and be weighed as m;
(5) put into styrene and soak 165-170 hour, be placed in 150 DEG C of thermostatic drying chambers dry 1 hour, to be cooled to room temperature and to weigh its quality be m
1,
often kind of resistance to burning agent at least parallel 2 groups in contrast,
complete the evaluation of anti-burning effect.
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| CN201410652134.1A CN104406880A (en) | 2014-11-17 | 2014-11-17 | Method for testing burning resisting effect of burning resisting agent of room temperature vulcanization mold rubber |
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| CN201410652134.1A CN104406880A (en) | 2014-11-17 | 2014-11-17 | Method for testing burning resisting effect of burning resisting agent of room temperature vulcanization mold rubber |
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Address after: Two street 523233 Guangdong province Dongguan City Chudo Zhen Dong Bo Cun Da Xin Wei Lu Daxin Road No. 1 Applicant after: Dongguan million Shun's organosilicon Science and Technology Co., Ltd. Address before: Two street 523233 Guangdong province Dongguan City Chudo Zhen Dong Bo Cun Da Xin Wei Lu Daxin Road No. 1 Applicant before: Dongguan Zhaoshun Organosilicon New Material Technology Co., Ltd . |
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Application publication date: 20150311 |