CN111647133A - Door core, anti-theft door comprising door core and preparation method of anti-theft door - Google Patents

Door core, anti-theft door comprising door core and preparation method of anti-theft door Download PDF

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CN111647133A
CN111647133A CN202010556181.1A CN202010556181A CN111647133A CN 111647133 A CN111647133 A CN 111647133A CN 202010556181 A CN202010556181 A CN 202010556181A CN 111647133 A CN111647133 A CN 111647133A
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door
door core
core
parts
foaming
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唐月婵
陈德宝
徐扬扬
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Guangzhou Haohua Industrial Co ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
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    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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    • C08G18/16Catalysts
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    • C08G18/18Catalysts containing secondary or tertiary amines or salts thereof
    • C08G18/20Heterocyclic amines; Salts thereof
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
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    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
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    • C08G18/48Polyethers
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    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666Compounds of group C08G18/48 or C08G18/52
    • C08G18/667Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6685Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143Halogen containing compounds
    • C08J9/144Halogen containing compounds containing carbon, halogen and hydrogen only
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70Door leaves
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/11Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes against burglary
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00Foams characterized by the expanding agent
    • C08J2203/14Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C08J2203/142Halogenated saturated hydrocarbons, e.g. H3C-CF3
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08J2375/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04Polyurethanes
    • C08J2375/08Polyurethanes from polyethers

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Abstract

The invention relates to the technical field of security doors, and provides a door core aiming at the problem of poor soft impact performance of a security door, which is prepared from the following raw materials in parts by mass: 60-70 parts of polyether polyol; 10-15 parts of polyisocyanate; 18-23 parts of monofluorodichloroethane; 1-1.3 parts of N, N-dimethylcyclohexylamine; 0.5-1 part of tris (dimethylaminopropyl) hexahydrotriazine; 0.2-0.5 part of pentamethyldiethylenetriamine; 1-3 parts of water. Also provides a preparation method of the anti-theft door containing the door core, which comprises the following steps: step (1), uniformly stirring and mixing all components of the door core to form a door core mixture; and (2) pouring the door core mixture obtained by mixing in the step (1) into a door frame, foaming and curing to form a door core, and obtaining the anti-theft door. The invention has the effect of improving the core density of the door core so as to improve the soft impact performance of the anti-theft door.

Description

Door core, anti-theft door comprising door core and preparation method of anti-theft door
Technical Field
The invention relates to the technical field of anti-theft doors, in particular to a door core, an anti-theft door comprising the door core and a preparation method of the anti-theft door.
Background
At present, the security door refers to a door which can resist abnormal opening under certain conditions within a certain time, has certain security protection performance and accords with corresponding security level.
The existing security door is usually made of steel, steel wood, stainless steel, aluminum alloy or copper materials, and in order to reduce the weight of the security door, the structure of the existing security door is usually hollow inside, so that the structural strength of the security door is easily influenced, the security door is easily sunken when being impacted, and therefore, the security door still has an improved space.
Disclosure of Invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a door core having a high core density to better enhance the soft impact performance of a security door.
Aiming at the defects in the prior art, the invention also aims to provide the anti-theft door with the door core, which has higher soft impact performance.
Aiming at the defects in the prior art, the invention further aims to provide a preparation method of the anti-theft door, which is beneficial to improving the soft impact performance of the anti-theft door.
The above object of the present invention is achieved by the following technical solutions:
the door core is prepared from the following raw materials in parts by mass:
60-70 parts of polyether polyol;
10-15 parts of polyisocyanate;
18-23 parts of monofluorodichloroethane;
1-1.3 parts of N, N-dimethylcyclohexylamine;
0.5-1 part of tris (dimethylaminopropyl) hexahydrotriazine;
0.2-0.5 part of pentamethyldiethylenetriamine;
1-3 parts of water.
By adopting the technical scheme, the defluorinated dichloroethane is used as the foaming agent, and the N, N-dimethylcyclohexylamine, the tris (dimethylaminopropyl) hexahydrotriazine and the pentamethyldiethylenetriamine are cooperatively matched with each other to serve as the catalyst, so that the foaming process of the door core is favorably promoted better, the core density of the door core obtained by foaming is higher, the compactness of the security door is favorably improved better by the door core, the soft impact performance of the security door is better, and the situation that the security door is less prone to dent when being impacted is further avoided.
The present invention in a preferred example may be further configured to: the polyether polyol is polyether polyol DV-125, and the polyisocyanate is dimethyl diphenyl diisocyanate.
Through adopting above-mentioned technical scheme, through adopting polyether glycol DV-125 and the cooperation of mutually supporting of dimethyl biphenyl diisocyanate, be favorable to promoting the foaming and the cross-linking process of door core better, make the core density of the door core of preparation gained higher, thereby be favorable to improving the closely knit degree of the burglary-resisting door of filling the gained better, make the soft impact property of burglary-resisting door better, and then be favorable to prolonging the life of burglary-resisting door better, make the burglary-resisting door be difficult to appear the sunken condition when receiving the impact force more.
The present invention in a preferred example may be further configured to: the door core is also prepared from the following raw materials in parts by mass:
1.5-3 parts of olfenadrin citrate.
Through adopting above-mentioned technical scheme, through adding citric acid oxfenadrin, be favorable to promoting the foaming process and the cross-linking process of door core better, simultaneously, make the cell in the door core that the foaming formed more even, make the core density of the door core of foaming gained higher, thereby be favorable to improving the soft impact property of the burglary-resisting door that the door core was filled gained better, make the burglary-resisting door be difficult to appear the sunken condition when receiving the impact force more.
The present invention in a preferred example may be further configured to: the door core is also prepared from the following raw materials in parts by mass:
1-1.5 parts of stannous octoate.
Through adopting above-mentioned technical scheme, through adding stannous octoate, be favorable to catalyzing the foaming of door core in the preparation process better for the foaming of door core in the preparation process is more abundant, makes the cell in the door core that forms more even, thereby is favorable to improving the core density of the door core of foaming gained better, makes the soft impact property that fills the burglary-resisting door that has the door core better, makes the burglary-resisting door be difficult to appear sunken condition when receiving the impact force more.
The present invention in a preferred example may be further configured to: the door core is also prepared from the following raw materials in parts by mass:
0.3-0.5 part of polysaccharyl chloride.
Through adopting above-mentioned technical scheme, cooperate mutually through adding polybrene and stannous octoate, be favorable to promoting stannous octoate's catalytic action better, make the foaming of door core more abundant, simultaneously, make the bubble in the door core that the foaming is gained more even, thereby be favorable to improving the core density of the door core that the foaming was gained better, make the soft impact property of the burglary-resisting door that it has the door core better to fill, make the burglary-resisting door be difficult to appear sunken condition when receiving the impact force more.
The second aim of the invention is realized by the following technical scheme:
a security door comprises a door frame with a hollow interior and the door core filled in the door frame.
Through adopting above-mentioned technical scheme, fill to inside hollow door frame through adopting above-mentioned door core, be favorable to improving the closely knit degree and the soft impact property of burglary-resisting door better for the burglary-resisting door is receiving the condition that the impact force is difficult to appear sunken more, is favorable to prolonging the life of burglary-resisting door better.
The third object of the invention is realized by the following technical scheme:
a preparation method of a security door comprises the following steps:
step (1), preparing a door core mixture: uniformly stirring and mixing all components of the door core to form a door core mixture;
step (2), filling the door core: and (3) pouring the door core mixture obtained by mixing in the step (1) into a door frame, foaming and curing to form a door core, and obtaining the anti-theft door.
Through adopting above-mentioned technical scheme, through pouring door core mixture into the door frame in for door core mixture foams and the curing in the door frame, makes the foaming space of door core mixture receive the restriction of door frame, thereby is favorable to the door core to extrude the core density in order to improve the door core better mutually at the foaming in-process, thereby is favorable to improving burglary-resisting door's soft impact property better, makes burglary-resisting door be difficult to the sunken condition of appearance when receiving the impact force more.
The present invention in a preferred example may be further configured to: in the step (1), the stirring speed is controlled to be 2500-.
Through adopting above-mentioned technical scheme, through the rotational speed and the time of control stirring misce bene, be favorable to each component misce bene better to be favorable to each component to cooperate with catalysis door core in the foaming of reaction preparation in-process better, be favorable to improving the core density of the door core that the foaming gained better, make the soft impact property of burglary-resisting door better, and then make the burglary-resisting door be difficult to appear sunken condition when receiving the impact force more.
The present invention in a preferred example may be further configured to: in the step (2), the foaming temperature is controlled to be 20-25 ℃, and the foaming time is controlled to be 8-10 min.
Through adopting above-mentioned technical scheme, through control foaming temperature and foaming time, be favorable to controlling the foaming of door core in the preparation reaction process better for door core foaming is more even, thereby is favorable to improving the core density of the door core that the preparation gained better, makes burglary-resisting door's soft impact property better, and then is favorable to prolonging burglary-resisting door's life better.
The present invention in a preferred example may be further configured to: in the step (2), the curing temperature is controlled to be 25-30 ℃, and the curing time is controlled to be 8-10 min.
Through adopting above-mentioned technical scheme, through control curing temperature and curing time, be favorable to the door core curing better, be favorable to further solidification of door core inner structure and cross-linking to be favorable to improving the core density of door core better, make the soft impact property of burglary-resisting door better, make the burglary-resisting door be difficult to appear sunken condition when receiving the impact force more.
In summary, the invention includes at least one of the following beneficial technical effects:
1. by adopting monofluorodichloroethane as a foaming agent and adopting N, N-dimethylcyclohexylamine, tris (dimethylaminopropyl) hexahydrotriazine and pentamethyldiethylenetriamine which are cooperatively matched with each other as a catalyst, the foaming process of the door core is favorably promoted, the core density of the foamed door core is higher, the soft impact performance of the security door is better, and the security door is less prone to generating a concave situation when being impacted;
2. through the mutual synergistic cooperation of the polyether polyol DV-125 and the dimethyl biphenyl diisocyanate, the foaming and crosslinking processes of the door core are favorably promoted, so that the prepared door core has higher compactness, the service life of the anti-theft door is favorably prolonged, and the anti-theft door is less prone to generating a sinking condition when being impacted;
3. the door core is filled into the door frame with a hollow interior, so that the compactness and the soft impact performance of the anti-theft door are favorably improved, the anti-theft door is less prone to generating a concave condition when being subjected to impact force, and the service life of the anti-theft door is favorably prolonged;
4. through pouring into the door frame with door core mixture in for door core mixture foams and the curing in the door frame, makes the foaming space of door core mixture receive the restriction of door frame, is favorable to the door core to extrude mutually in order to improve the core density of door core better at the foaming in-process, is favorable to improving the soft impact property of burglary-resisting door better, makes the burglary-resisting door be difficult to the sunken condition appear when receiving the impact force more.
Drawings
FIG. 1 is a process flow diagram of a method for manufacturing a security door having a door core according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the following examples, the monofluorodichloroethane is 75-68-3 available from Jinan Dahui chemical technology Co., Ltd.
In the following examples, N, N-dimethylcyclohexylamine available from Hubei Yunw technologies Ltd under the trade designation 98-94-2 was used.
In the following examples, 1,3, 5-tris (dimethylaminopropyl) -1,3, 5-hexahydrotriazine available from Shandong Ministry of chemistry, Inc. under the product number 15875-13-5 was used as tris (dimethylaminopropyl) hexahydrotriazine.
In the following examples, pentamethyldiethylenetriamine commercially available from New Material Ltd of Shanghai was 3030 to 47 to 5.
In the following examples, the oxfenadrin citrate is oxfenadrin citrate of 4596-23-0, available from Shanghai magnesium-Cheng chemical Co., Ltd.
In the following examples, stannous octoate of 301-10-0, a trade name of Jinchan chemical company, Inc. was used as stannous octoate.
In the following examples, the PolySaponium chloride used was 31512-74-0 from Calboneses chemical technology, Inc.
Example 1
Referring to fig. 1, the invention discloses a method for preparing a security door comprising a door core, comprising the following steps:
step (1), preparing a door core mixture, which comprises the following steps:
polyether polyol, polyisocyanate, monofluorodichloroethane, N-dimethylcyclohexane, tris (dimethylaminopropyl) hexahydrotriazine, pentamethyldiethylenetriamine and water were added to a closed vessel, and stirred with an electric stirrer at a rotation speed of 2000r/min for 15 seconds to form a door core mixture.
Step (2), filling the door core, specifically as follows:
and (2) timely filling the door core mixture obtained by stirring and mixing in the step (1) into the door frame, so that the door core mixture foams in the hollow part of the door frame, and controlling the foaming temperature to be 15 ℃ and the foaming time to be 15 min. And then adjusting the temperature to 20 ℃, and curing the door core mixture in the door frame for 15min to form a door core, namely obtaining the anti-theft door containing the door core.
In this example, the polyether polyol was DL-2000D, a trademark of Haohnhong chemical technology, Inc., Guangzhou.
In this example, polymethylene polyphenyl polyisocyanate available from Wangdai chemical Co., Ltd, Hubei, under the reference number of 9016-87-9 was used as the polyisocyanate.
The raw material components and the content of the door core mixture are shown in table 1, and the unit of the content of each component in table 1 is kg.
Example 2
The difference from example 1 is that:
the raw material components and contents of the door core mixture in step (1) are shown in table 1.
The stirring speed in the step (1) is 3500r/min, and the stirring time is 5 s.
The foaming temperature in the step (2) is 30 ℃, and the foaming time is 5 min; the curing temperature is 35 ℃ and the curing time is 5 min.
Example 3
The difference from example 1 is that:
the raw material components and contents of the door core mixture in step (1) are shown in table 1.
The stirring speed in the step (1) is 2500r/min, and the stirring time is 10 s.
The foaming temperature in the step (2) is 20 ℃, and the foaming time is 10 min; the curing temperature is 25 ℃ and the curing time is 10 min.
Example 4
The difference from example 1 is that:
the raw material components and contents of the door core mixture in step (1) are shown in table 1.
The stirring speed in the step (1) is 3000r/min, and the stirring time is 8 s.
The foaming temperature in the step (2) is 25 ℃, and the foaming time is 8 min; the curing temperature is 30 ℃, and the curing time is 8 min.
Example 5
The difference from example 1 is that:
the raw material components and contents of the door core mixture in step (1) are shown in table 1.
The stirring speed in the step (1) is 2700r/min, and the stirring time is 8 s.
The foaming temperature in the step (2) is 23 ℃, and the foaming time is 9 min; the curing temperature is 29 ℃ and the curing time is 9 min.
TABLE 1
Figure BDA0002544353000000091
Example 6
The difference from example 5 is that: the polyether polyol is a polyether polyol having a model number DV-125 from chemical Co., Ltd.
Example 7
The difference from example 5 is that: the polyisocyanate is dimethyl biphenyl diisocyanate with a product number of 91-97-4 from scientific and technical Limited of Lianjie Biotech of the department of Han dynasty.
Example 8
The difference from example 5 is that: the polyether polyol is the polyether polyol with the model number DV-125 from chemical engineering Co., Ltd, Guangzhou; the polyisocyanate is dimethyl biphenyl diisocyanate with a product number of 91-97-4 from scientific and technical Limited of Lianjie Biotech of the department of Han dynasty.
Example 9
The difference from example 5 is that: adding the olfenadrin citrate in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 2, and the content unit of each component in table 2 is kg.
Example 10
The difference from example 5 is that: adding the olfenadrin citrate in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 2, and the content unit of each component in table 2 is kg.
TABLE 2
Figure BDA0002544353000000101
Figure BDA0002544353000000111
Example 11
The difference from example 5 is that: stannous octoate is also added in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 3, and the content unit of each component in table 3 is kg.
Example 12
The difference from example 5 is that: stannous octoate is also added in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 3, and the content unit of each component in table 3 is kg.
Example 13
The difference from example 5 is that: polyzium chloride is also added in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 3, and the content unit of each component in table 3 is kg.
Example 14
The difference from example 5 is that: polyzium chloride is also added in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 3, and the content unit of each component in table 3 is kg.
Example 15
The difference from example 5 is that: stannous octoate and poly (ammonium chloride) are also added in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 3, and the content unit of each component in table 3 is kg.
Example 16
The difference from example 5 is that: stannous octoate and poly (ammonium chloride) are also added in the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 3, and the content unit of each component in table 3 is kg.
TABLE 3
Figure BDA0002544353000000121
Examples 17 to 20
The difference from example 5 is that: adding oxfenadrin citrate, stannous octoate and polyaluminium chloride into the step (1); the raw material components and the content of the door core mixture in the step (1) are shown in table 4, and the unit of the content of each component in table 4 is kg.
TABLE 4
Figure BDA0002544353000000122
Figure BDA0002544353000000131
Comparative example 1
The difference from example 5 is that: in the step (1), 1, 1, 1,3, 3-pentafluoropropane with the same amount is used as a foaming agent instead of monofluorodichloroethane.
Comparative example 2
The difference from example 5 is that: in the step (1), the same amount of trimethylhydroxyethylethylene diamine is adopted to replace N, N-dimethylcyclohexylamine.
Comparative example 3
The difference from example 5 is that: in the step (1), the same amount of trimethylhydroxyethylethylenediamine is adopted to replace tris (dimethylaminopropyl) hexahydrotriazine.
Comparative example 4
The difference from example 5 is that: in step (1), the same amount of trimethylhydroxyethylethylenediamine is used instead of pentamethyldiethylenetriamine.
Experiment 1
According to GB/T foam plastics and rubberMeasurement of apparent Density of glue [ ] the core densities (kg/m) of the door cores obtained in the above examples and comparative examples were measured3)。
Experiment 2
The compression strength (kPa) of the door cores obtained in the above examples and comparative examples was measured according to GB/T "measurement of compression Properties of rigid foams".
Experiment 3
According to the soft impact performance test in GB/T17565-2007 general technical conditions for anti-theft safety doors, a 9-prick impact test is carried out by adopting a 30kg sand bag, the depth (mm) of residual concave deformation after the test is recorded, and meanwhile, a door frame which is not filled with the door core and is hollow inside is adopted as a blank control group.
The data from the above experiments are shown in Table 5.
TABLE 5
Figure BDA0002544353000000141
Figure BDA0002544353000000151
As can be seen from a comparison of the data in Table 5 for examples 1-5, the door core compounds of examples 1-5 had different stirring speeds and different stirring times during the mixing process, meanwhile, the foaming temperature, the foaming time, the curing temperature and the curing time of the door core mixture after being poured into the door frame are different, whereas the core density and compressive strength of the door cores of examples 3-5 were somewhat higher than those of examples 1-2, and the depth of the residual concave deformation of the security door of the embodiment 3-5 is lower than that of the embodiment 1-2 to some extent, which shows that the temperature and time condition of the door core in the foaming and curing process are controlled, so that the door core is beneficial to fully foaming in the preparation process, thereby being beneficial to better improving the core density and the compressive strength of the door core and further being beneficial to better reducing the residual concave deformation depth of the anti-theft door after the anti-theft door is subjected to soft impact.
According to the comparison of the data of examples 5-8 in table 5, the polyether polyol and the polyisocyanate used in the reaction are different, while the core density and the compressive strength of the door core prepared in examples 5-7 are similar, and the core density and the compressive strength of the door core prepared in example 8 are higher than those of the door cores prepared in examples 5-7, which shows that the synergistic cooperation of polyether polyol DV-125 and dimethylbiphenyl diisocyanate is beneficial to better improving and promoting the foaming of the door core in the reaction process, so that the core density and the compressive strength of the prepared door core are higher, the soft impact performance of the security door is better improved, and the residual concave deformation depth of the security door after the soft impact is smaller.
According to the comparison of the data of the embodiment 5 and the embodiments 9-10 in the table 5, the addition of the olfenadrin citrate is beneficial to better promoting the foaming process of the door core in the reaction process, so that the door core is more completely foamed, the core density and the compression strength of the door core are better improved, the soft impact performance of the anti-theft door is better, and the residual concave deformation depth of the anti-theft door after the anti-theft door is subjected to soft impact is smaller.
According to comparison of data of the embodiment 5 and the embodiments 11 to 16 in the table 5, stannous octoate is added independently, so that the foaming process of the door core in the reaction process is promoted to a certain extent, the core density and the compression strength of the prepared door core are higher, the soft impact performance of the anti-theft door is better, and the anti-theft door is less prone to deformation after being subjected to soft impact; through adding polybrene alone, hardly exert an influence to the performance of door core and the performance of burglary-resisting door, only when stannous octoate and polybrene cooperate with each other, just can improve the core density and the compressive strength of door core better to can improve the soft impact property of burglary-resisting door better, make the burglary-resisting door be difficult to take place deformation when receiving soft impact.
According to the comparison of the data of example 5 and comparative examples 1-4 in table 5, the catalyst or foaming agent used in example 5 is different from that used in comparative examples 1-4, and the core density and compressive strength of the door core prepared in example 5 are much higher than those of comparative examples 1-4, which shows that the foaming agent and catalyst used in the reaction are controlled to facilitate better reaction progress of the door core during the preparation process, so that the core density and compressive strength of the prepared door core are higher, and the soft impact performance of the security door is better.
According to the comparison of the data of the embodiment 5 and the blank control group in the table 5, the soft impact performance of the anti-theft door can be improved better by filling the door core in the door frame.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. A door core, comprising: the door core is prepared from the following raw materials in parts by weight:
60-70 parts of polyether polyol;
10-15 parts of polyisocyanate;
18-23 parts of monofluorodichloroethane;
1-1.3 parts of N, N-dimethylcyclohexylamine;
0.5-1 part of tris (dimethylaminopropyl) hexahydrotriazine;
0.2-0.5 part of pentamethyldiethylenetriamine;
1-3 parts of water.
2. The door core according to claim 1, wherein: the polyether polyol is polyether polyol DV-125, and the polyisocyanate is dimethyl diphenyl diisocyanate.
3. A door core according to any one of claims 1-2, wherein: the door core is also prepared from the following raw materials in parts by mass:
1.5-3 parts of olfenadrin citrate.
4. A door core according to any one of claims 1-2, wherein: the door core is also prepared from the following raw materials in parts by mass:
1-1.5 parts of stannous octoate.
5. The door core according to claim 4, wherein: the door core is also prepared from the following raw materials in parts by mass:
0.3-0.5 part of polysaccharyl chloride.
6. A security door, its characterized in that: comprising a door frame with a hollow interior and a door core according to any one of claims 1 to 5 filled in the door frame.
7. A method of manufacturing a security door according to claim 6, wherein: the method comprises the following steps:
step (1), preparing a door core mixture: uniformly stirring and mixing all components of the door core to form a door core mixture;
step (2), filling the door core: and (3) pouring the door core mixture obtained by mixing in the step (1) into a door frame, foaming and curing to form a door core, and obtaining the anti-theft door.
8. The method of manufacturing a security door according to claim 7, wherein: in the step (1), the stirring speed is controlled to be 2500-.
9. The method of manufacturing a security door according to claim 8, wherein: in the step (2), the foaming temperature is controlled to be 20-25 ℃, and the foaming time is controlled to be 8-10 min.
10. The method of manufacturing a security door according to claim 9, wherein: in the step (2), the curing temperature is controlled to be 25-30 ℃, and the curing time is controlled to be 8-10 min.
CN202010556181.1A 2020-06-17 2020-06-17 Door core, anti-theft door comprising door core and preparation method of anti-theft door Pending CN111647133A (en)

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