阅读说明：本技术 一种天窗用抗震保护型发泡条及结构 (Anti-seismic protection type foaming strip and structure for skylight ) 是由 严仁虎 曾进 王爱爱 邱婷 王泯力 于 2020-07-29 设计创作，主要内容包括：本发明公开了一种天窗用抗震保护型发泡条及结构,包括外壳、第一通腔和挡块,所述外壳的内开设有第一通腔和第二通腔,所述第一通腔位于第二通腔的上方,所述第一通腔的内腔设置有第一内置条,所述第二通腔的内腔设置有第二内置条,所述外壳的左侧壁上端安装有挡块。本发明通过对发泡条组分、组分比例、制备工艺的设置,使得发泡条能够实现抗震保护能力的提高,且提高了发泡条的弹性、尺寸稳定性和加工性能,其熔体流动性高,润滑性好,易于与生产设备脱离,防止发泡条受到拉扯损坏,发泡条各组分间的相容性较好,物料分散均一,性能一致,不易发生局部损坏,利于提高发泡条的使用寿命,适合广泛推广与使用。(The invention discloses an anti-seismic protection type foaming strip for a skylight and a structure thereof, and the anti-seismic protection type foaming strip comprises a shell, a first through cavity and a stop block, wherein the shell is internally provided with the first through cavity and a second through cavity, the first through cavity is positioned above the second through cavity, the inner cavity of the first through cavity is provided with a first built-in strip, the inner cavity of the second through cavity is provided with a second built-in strip, and the upper end of the left side wall of the shell is provided with the stop block. According to the invention, through the arrangement of the components, the component proportion and the preparation process of the foaming strip, the anti-seismic protection capability of the foaming strip can be improved, the elasticity, the dimensional stability and the processing performance of the foaming strip are improved, the melt has high fluidity and good lubricity, is easy to separate from production equipment, prevents the foaming strip from being damaged by pulling, has good compatibility among the components of the foaming strip, uniform dispersion of materials and consistent performance, is not easy to cause local damage, is beneficial to prolonging the service life of the foaming strip, and is suitable for wide popularization and use.)

1. The utility model provides a skylight is with antidetonation protection type foaming strip structure, includes shell (1), first logical chamber (2) and dog (4), its characterized in that: the utility model discloses a lead to the structure of the motor, including shell (1), first logical chamber (2) and second logical chamber (11) have been seted up to interior division of shell (1), first logical chamber (2) are located the second and lead to the top of chamber (11), the inner chamber that first leads to chamber (2) is provided with first built-in strip (5), the inner chamber that the second leads to chamber (11) is provided with second built-in strip (10), dog (4) are installed to the left side wall upper end of shell (1).

2. The anti-seismic protective foam strip structure for the skylight according to claim 1, characterized in that: the plug-in block (6) is installed to the left side wall of shell (1), the below of plug-in block (6) is provided with hinders piece (7), the bottom and shell (1) fixed connection that hinder piece (7).

3. The anti-seismic protective foam strip structure for the skylight according to claim 1, characterized in that: the right side wall surface of shell (1) is first plane (3), the bottom surface of shell (1) is second plane (9), the left side wall lower extreme of shell (1) is first semicircle convex surface (8), the right side wall lower extreme of shell (1) is provided with second semicircle convex surface (12).

4. The anti-seismic protective foam strip structure for the skylight according to claim 2, characterized in that: first lug (13) are all installed to the left side wall upper end and the lower extreme of inserted block (6), the inner chamber of inserted block (5) has been seted up the third and has been led to chamber (15), second lug (14) are all installed to the inner chamber top and the bottom that the third leads to chamber (15).

5. The anti-seismic protective foam strip for the skylight is characterized by comprising the following components in parts by weight: 94-100 parts of ethylene propylene diene monomer, 18-25 parts of ethylene-vinyl acetate copolymer, 1-3 parts of sodium stearate, 25-35 parts of carbon black, 5-7 parts of foaming agent DDL101, 0.3-0.7 part of dicumyl peroxide and 0.1-0.3 part of sulfur.

6. An anti-seismic protective foam strip for skylights according to claim 5, wherein the foam strip further comprises the following components by weight: 1-4 parts of polystyrene, 4-6 parts of polyurethane, 3-5 parts of polyethylene wax and 0.5-2 parts of polyisocyanate.

7. A preparation process of an anti-seismic protective foaming strip for a skylight is characterized by comprising the following steps of:

1) treating raw materials: taking polyethylene wax and polystyrene for modification respectively, and co-extruding and granulating the polyethylene wax and the polystyrene with polyurethane, ethylene-vinyl acetate copolymer and polyisocyanate;

2) preparing a foaming strip: and (4) blending the product obtained in the last step with other components, and foaming to obtain a finished product.

8. An anti-seismic protective foam strip for skylights according to claim 7 wherein said step 1) comprises the steps of:

placing polyethylene wax in a reaction kettle, adding N, N-dimethylformamide, heating to 40-60 ℃, stirring and mixing uniformly, then cooling to room temperature, adding sodium stearate, sealing the reaction kettle, introducing air, stirring, raising the temperature of the reaction kettle to 160-180 ℃, preserving heat for 25-35 min, then rapidly cooling to 125-145 ℃, preserving heat for 4-8 h, cooling, and taking out a reactant to obtain a product A;

putting the product A into a reaction kettle, adding ethylenediamine, uniformly mixing, sealing the reaction kettle, extracting air in the kettle, and reacting at the temperature of 140-180 ℃ to obtain a product B;

adding sodium stearate into the product B, heating to a molten state, adding triethanolamine aqueous solution, stirring at a high speed for 10-30 min at a temperature of 90-95 ℃, then adding a molecular sieve dried at a temperature of 100-120 ℃ for 25-35 min, stirring and mixing uniformly, heating to 100-110 ℃, taking out, cooling, and continuing stirring to obtain a product C;

placing polystyrene into a reaction kettle, adding toluene, maleic anhydride and polyvinyl alcohol, uniformly mixing, and stirring and reacting at the temperature of 90-110 ℃ for 2-5 hours to obtain a product D;

and adding the product D into polyurethane, ethylene-vinyl acetate copolymer, the product C and polyisocyanate, uniformly mixing, and extruding and granulating in a double-screw extruder to obtain a product E.

9. An anti-seismic protective foam strip for skylights according to claim 8 wherein said step 2) comprises the steps of:

putting ethylene propylene diene monomer, sodium stearate and a product E into an open mill, uniformly mixing, opening at the temperature of 120-130 ℃ for 8-12 min, standing for 2-4 h, adding carbon black, opening at the temperature of 115-125 ℃ for 15-20 min, standing for 1-3 h, adding a foaming agent DDL101, dicumyl peroxide and sulfur, opening at the temperature of 105-115 ℃ for 8-12 min, taking out, putting into a mold, and carrying out mold pressing at the mold pressing temperature of 140-160 ℃ for 14-20 min.

Technical Field

The invention relates to the field of foaming strips, in particular to an anti-seismic protection type foaming strip for a skylight and a structure.

Background

The skylight is the window of setting on house or vapour car roof, be used for the printing opacity heat dissipation, ventilation, change traditional mode of taking a breath, promote the circulation of air in the environment, increase the light source, widen the field of vision, the used foaming strip in skylight is the indispensable part in skylight, be used for filling the gap between skylight and frame, realize the sealed between skylight and frame, and need have good elasticity and resistance to compression deformability, prevent along with the increase of skylight number of times of opening and shutting, the foaming strip is out of shape after long-term the use, some present foaming strips for the skylight have certain protective capacities, after long-term the use under stress and environmental catalysis, can take place to warp, ageing, the foaming strip can's unable use, need frequent change, and pull to the product in its manufacturing also can cause the damage to the performance of foaming strip. Therefore, an anti-seismic protective foaming strip and a structure for the skylight are provided.

Disclosure of Invention

The invention aims to provide an anti-seismic protective foaming strip for a skylight and a structure thereof, and aims to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a skylight is with antidetonation protection type foaming strip structure, includes shell, first logical chamber and dog, seted up first logical chamber and the second of shell and led to the chamber, first logical chamber is located the second and leads to the top in chamber, the inner chamber in first logical chamber is provided with first built-in strip, the inner chamber in second logical chamber is provided with the built-in strip of second, the dog is installed to the left side wall upper end of shell.

In above-mentioned technical scheme, lead to the chamber through first logical chamber and second in the foaming strip shell, when the skylight is closed and the frame contact, the foaming strip can be transversely and vertically protected the skylight respectively, reduce the impact that the skylight receives, reach the antidetonation effect, first built-in strip and the built-in strip of second that lead to the inside setting in chamber of chamber and second can strengthen the buffer capacity who leads to the chamber simultaneously, improve the antidetonation effect of foaming strip, prevent to lead to the chamber and receive the force deformation for a long time, improve the life of foaming strip, built-in strip and lead to the chamber and form the multiunit hole, can hinder the propagation of sound, improve syllable-dividing effect.

As a preferred embodiment of the present invention, an insertion block is installed on the left side wall of the housing, a stop block is disposed below the insertion block, and the bottom of the stop block is fixedly connected to the housing.

In the technical scheme, the foaming strip is fixed on the skylight through the inserting block on the left side of the shell, when the inserting block is inserted into the edge of the skylight, the blocking block below the inserting block contacts the lower edge of the skylight, the relative movement trend between the foaming strip and the skylight is blocked, the fixing between the skylight and the foaming strip is realized, and the displacement of the foaming strip is effectively prevented.

In a preferred embodiment of the present invention, a right side wall surface of the housing is a first plane, a bottom surface of the housing is a second plane, a lower end of a left side wall of the housing is a first semicircular convex surface, and a lower end of a right side wall of the housing is provided with a second semicircular convex surface.

In the technical scheme, the first semicircular arc convex surface and the second semicircular arc convex surface of the left side wall and the right side wall of the shell guide impact force when the skylight is in contact with the frame, so that the direction of the skylight deviates, the impact force is dispersed, the first plane and the second plane receive impact, the long-term stress deformation of the foaming strip is prevented, and the buffering and anti-seismic effects of the foaming strip are kept.

As a preferred embodiment of the present invention, the upper end and the lower end of the left sidewall of the insertion block are both provided with a first protrusion, the inner cavity of the insertion block is provided with a third through cavity, and the top and the bottom of the inner cavity of the third through cavity are both provided with a second protrusion.

In above-mentioned technical scheme, through two sets of second lugs on the inserted block, when installing the foaming strip, can remove two sets of first lugs on the inserted block in opposite directions, the third chamber of the way abdicates this moment, and two sets of second lugs are crisscross, reduce the vertical size of inserted block, are convenient for install the foaming strip, after the installation, the inserted block resumes initial shape for the foaming strip installation is inseparable, does benefit to the protective capacities that realizes the foaming strip to the skylight.

The anti-seismic protective foam strip for the skylight is characterized by comprising the following components in parts by weight: 94-100 parts of ethylene propylene diene monomer, 18-25 parts of ethylene-vinyl acetate copolymer, 1-3 parts of sodium stearate, 25-35 parts of carbon black, 5-7 parts of foaming agent DDL101, 0.3-0.7 part of dicumyl peroxide and 0.1-0.3 part of sulfur.

In the technical scheme, the ethylene propylene diene monomer rubber has excellent aging resistance and higher ozone resistance and weather resistance; the ethylene-vinyl acetate copolymer has better water resistance, corrosion resistance and heat preservation performance, high toughness, good rebound resilience, excellent anti-vibration performance and easy processing; the sodium stearate can activate the foaming agent and catalyze the foaming reaction; the selection of the carbon black and the dosage thereof can improve the rebound resilience and the compression deformation resistance of the product; the foaming agent DDL101 is used for foaming a product, the heat absorption and heat release in the reaction are balanced, the influence of the simple heat absorption and heat release reaction on the viscosity and the strength of the product is avoided, the pore diameter and the shape of the foamed product are uniform, and the physical property is good; the dicumyl peroxide participates in the reaction to promote the improvement of the heat resistance and the aging resistance of the foaming strip, the sulfur is used in combination with the reaction to improve the tensile strength and the compression deformation resistance of the product, and the basic performance of the foaming strip is endowed by the combination of various components.

As a preferred embodiment of the present invention, the foam strip further comprises the following components by weight: 1-4 parts of polystyrene, 4-6 parts of polyurethane, 3-5 parts of polyethylene wax and 0.5-2 parts of polyisocyanate.

In the technical scheme, the polystyrene has better thermal stability and fluidity in a molten state, and the prepared product has good dimensional stability; the polyurethane has better friction resistance, ageing resistance and low temperature resistance and has elasticity; the polyethylene wax has good compatibility with rubber and lubricating property, can improve the fluidity of the prepared melt, and is easy to demould; the polyisocyanate is used for polymerization among the components to modify the components; the properties of the components are utilized to improve the performance of the foaming strip, and the improvement of the anti-seismic protection capability of the foaming strip is facilitated.

A preparation process of an anti-seismic protective foaming strip for a skylight comprises the following steps:

1) treating raw materials: taking polyethylene wax and polystyrene for modification respectively, and co-extruding and granulating the polyethylene wax and the polystyrene with polyurethane, ethylene-vinyl acetate copolymer and polyisocyanate;

2) preparing a foaming strip: and (4) blending the product obtained in the last step with other components, and foaming to obtain a finished product.

As a preferred embodiment of the present invention, the step 1) includes the steps of:

1) treating raw materials:

placing polyethylene wax in a reaction kettle, adding N, N-dimethylformamide, heating to 40-60 ℃, stirring and mixing uniformly, then cooling to room temperature, adding sodium stearate, sealing the reaction kettle, introducing air, stirring, raising the temperature of the reaction kettle to 160-180 ℃, preserving heat for 25-35 min, then rapidly cooling to 125-145 ℃, preserving heat for 4-8 h, cooling, and taking out a reactant to obtain a product A;

in the technical scheme, the polyethylene wax is swelled in the solvent N, N-dimethylformamide, and is stirred and sheared after being cooled to obtain dispersed and activated polyethylene wax slurry which is relatively stable and low in temperature sensitivity, the rate of subsequent reaction is improved, sodium stearate is used as a catalyst, and the polyethylene wax is in contact oxidation with air at high temperature, so that the toughness and the chemical stability of the polyethylene wax are improved, the viscosity is low, the fluidity of a prepared melt is improved, the friction between a prepared product and production mold equipment is reduced, and the demolding is easy.

Putting the product A into a reaction kettle, adding ethylenediamine, uniformly mixing, sealing the reaction kettle, extracting air in the kettle, and reacting at the temperature of 140-180 ℃ to obtain a product B;

in the technical scheme, the product A reacts with ethylenediamine to react with the modified polyethylene wax with amide groups, so that the anti-aging performance of the prepared product under the conditions of heat and oxygen is improved, and the service life of the foaming strip is prolonged.

Adding sodium stearate into the product B, heating to a molten state, adding triethanolamine aqueous solution, stirring at a high speed for 10-30 min at a temperature of 90-95 ℃, then adding a molecular sieve dried at a temperature of 100-120 ℃ for 25-35 min, stirring and mixing uniformly, heating to 100-110 ℃, taking out, cooling, and continuing stirring to obtain a product C;

in the technical scheme, the product B is emulsified under the action of sodium stearate, the dispersity of each component of the foaming strip is improved, the foaming strip has good compatibility with resin and rubber, can enter gaps between molecules of the resin and the rubber, eliminates agglomeration, can be soaked with carbon black, promotes uniform dispersion of the carbon black, improves the flowability of materials in subsequent operation, and is easy to demould.

Placing polystyrene into a reaction kettle, adding toluene, maleic anhydride and polyvinyl alcohol, uniformly mixing, and stirring and reacting at the temperature of 90-110 ℃ for 2-5 hours to obtain a product D;

in the technical scheme, the polystyrene and the maleic anhydride are subjected to grafting reaction in the mixed solution of the toluene and the polyvinyl alcohol, so that the polystyrene is modified, the compatibility between the polystyrene and other components is improved, and the impact resistance of the prepared product is improved.

And adding the product D into polyurethane, ethylene-vinyl acetate copolymer, the product C and polyisocyanate, uniformly mixing, and extruding and granulating in a double-screw extruder to obtain a product E.

In the technical scheme, the modified polystyrene, the polyurethane, the ethylene-vinyl acetate copolymer and the modified polyethylene wax are crosslinked under the action of the polyisocyanate, the properties of all the components are utilized to improve the performance of the foaming strip, and meanwhile, the fatigue resistance and the aging resistance of a crosslinked product are improved, the elasticity is increased, the dimensional stability is improved, and the improvement of the shock resistance and the protection capability of the foaming strip is facilitated.

As a preferred embodiment of the present invention, the step 2) includes the steps of:

putting ethylene propylene diene monomer, sodium stearate and a product E into an open mill, uniformly mixing, opening at the temperature of 120-130 ℃ for 8-12 min, standing for 2-4 h, adding carbon black, opening at the temperature of 115-125 ℃ for 15-20 min, standing for 1-3 h, adding a foaming agent DDL101, dicumyl peroxide and sulfur, opening at the temperature of 105-115 ℃ for 8-12 min, taking out, putting into a mold, and carrying out mold pressing at the mold pressing temperature of 140-160 ℃ for 14-20 min.

In the technical scheme, the stability of the process conditions is improved by setting the foaming process of the foaming strip, and the prepared foaming strip has better anti-seismic protection capability while realizing the properties of all components.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the anti-seismic protection type foaming strip and the structure for the skylight, the components, the component proportions and the preparation process of the foaming strip are arranged, so that the anti-seismic protection capability of the foaming strip can be improved, the elasticity, the dimensional stability and the processing performance of the foaming strip are improved, the melt is high in fluidity, good in lubricity and easy to separate from production equipment, the foaming strip is prevented from being pulled and damaged, the compatibility among the components of the foaming strip is good, the materials are uniformly dispersed, the performance is consistent, the local damage is not easy to occur, and the service life of the foaming strip is prolonged.

2. According to the anti-seismic protective foaming strip and the structure for the skylight, the foaming roof structure is arranged, so that the impact on the skylight can be dispersed, stress concentration is eliminated, the skylight is protected in multiple directions, the buffering and anti-seismic effects of the foaming strip are improved, the foaming strip is prevented from being stressed and deformed, the service life of the foaming strip is prolonged, the skylight and the foaming strip are tightly fixed, the foaming strip can be effectively prevented from moving, and the buffering and anti-seismic effects of the foaming strip are kept.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic cross-sectional structure view of an anti-seismic protective foam strip for a skylight in accordance with the present invention;

FIG. 2 is a schematic top view of the anti-seismic protective foam strip for skylights according to the present invention;

FIG. 3 is an enlarged view of A in the shock-resistant protective foam strip for a sunroof according to the present invention.

In the figure: 1. a housing; 2. a first through cavity; 3. a first plane; 4. a stopper; 5. a first built-in strip; 6. inserting a block; 7. blocking; 8. a first semi-circular convex surface; 9. a second plane; 10. a second built-in strip; 11. a second through cavity; 12. a second semi-circular convex surface; 13. a first bump; 14. a second bump; 15. a third through cavity; 16. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a skylight is with antidetonation protection type foaming strip structure, includes shell 1, first logical chamber 2 and dog 4, the interior division of shell 1 has first logical chamber 2 and second to lead to chamber 11, first logical chamber 2 is located the second and leads to the top in chamber 11, first inner chamber that leads to chamber 2 is provided with first built-in strip 5, the inner chamber that the second leads to chamber 11 is provided with second built-in strip 10, dog 4 is installed to the left side wall upper end of shell 1.

In this embodiment, an insertion block 6 is installed on the left side wall of the housing 1, a stop block 7 is arranged below the insertion block 6, the bottom of the stop block 7 is fixedly connected with the housing 1, the insertion block 6 is used for fixing the foaming strip on the skylight, when the insertion block 6 is inserted at the edge of the skylight, the stop block 7 below the insertion block contacts the lower edge of the skylight to block the relative movement trend between the foaming strip and the skylight, so as to realize the fixation between the skylight and the foaming strip, the right side wall surface of the housing 1 is a first plane 3, the bottom surface of the housing 1 is a second plane 9, the lower end of the left side wall of the housing 1 is a first semicircular arc convex surface 8, the lower end of the right side wall of the housing 1 is provided with a second semicircular arc convex surface 12, when the skylight is contacted with a frame, the first semicircular arc convex surface and the second semicircular arc convex surface 12 guide the impact force to make the direction of the housing deviate, so as to disperse the impact force, first plane 3 and second plane 9 accept the impact, prevent that the long-term atress of foaming strip from being out of shape, keep buffering, the antidetonation effect of foaming strip, first lug 13 is all installed to the left side wall upper end and the lower extreme of inserted block 6, third through cavity 15 has been seted up to the inner chamber of inserted block 6, second lug 14 is all installed to the inner chamber top and the bottom in third through cavity 15, when installing the foaming strip, can be with two sets of first lugs 13 on inserted block 6 removal in opposite directions, third through cavity 15 abdicating this moment, and two sets of second lugs 14 are crisscross, reduce the longitudinal dimension of inserted block 6, are convenient for install the foaming strip, and after the installation, inserted block 6 resumes initial shape for the foaming strip installation is inseparable, does benefit to the protective capacities of realization foaming strip to the skylight.

When the anti-seismic protection type foaming strip for the skylight is used, firstly, the foaming strip is installed, two groups of first lugs 13 on the inserting block 6 move oppositely, at the moment, the third through cavities 15 are abducted, two groups of second lugs 14 are staggered, the longitudinal size of the inserting block 6 is reduced, the foaming strip is convenient to install, after the installation is finished, the inserting block 6 recovers the original shape, the foaming strip is tightly installed, the protection capability of the foaming strip on the skylight is favorably realized, at the moment, the foaming strip is fixed on the skylight by the inserting block 6 on the left side of the shell 1, when the inserting block 6 is inserted at the edge of the skylight, the blocking block 7 below the inserting block contacts with the lower edge of the skylight, the relative movement trend between the foaming strip and the foaming strip is blocked, the fixing between the skylight and the foaming strip is realized, the displacement of the foaming strip is effectively prevented, when the skylight is closed and contacts with a frame, the impact force borne by the foaming strip can be guided by the first semi-circular arc convex surfaces 8 and the second semi-circular convex, make its direction take place the skew, disperse impact force, first plane 3 and second plane 9 accept the impact, prevent that the long-term atress of foaming strip is out of shape, keep the buffering of foaming strip, the antidetonation effect, the foaming strip is transversely and vertically protected the skylight respectively, reduce the impact that the skylight receives, reach the antidetonation effect, the first built-in strip 5 and the built-in strip 1 of second that lead to the inside setting of chamber 2 and second logical chamber 11 can strengthen the buffer capacity who leads to the chamber simultaneously, improve the antidetonation effect of foaming strip, prevent to lead to the long-term atress of chamber and warp, improve the life of foaming strip, built-in strip and lead to form the multiunit hole between the chamber, can hinder the propagation of sound, improve sound insulation effect.