CN101817218A - Polyamide thermal barrier strip preparation technology - Google Patents
Polyamide thermal barrier strip preparation technology Download PDFInfo
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- CN101817218A CN101817218A CN201010152663A CN201010152663A CN101817218A CN 101817218 A CN101817218 A CN 101817218A CN 201010152663 A CN201010152663 A CN 201010152663A CN 201010152663 A CN201010152663 A CN 201010152663A CN 101817218 A CN101817218 A CN 101817218A
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- flow distribution
- distribution plate
- thermal barrier
- barrier strip
- extruder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a polyamide thermal barrier strip preparation technology, which mainly comprises the steps: formulation of raw materials, formation of alloy particles, drying, extrusion, pressurized flow distribution of a flow distribution plate and water model cooling formation; namely, the formulated raw materials are mixed and refined to alloy particles in a double screw extruder while even mixing is guaranteed, the alloy particles are dried in vacuum by using a drier, the alloy particles dried in the previous step are extruded to the flow distribution plate by using an extruder, a pressurization device is utilized to pressurize melts in an inner cavity of the flow distribution plate to achieve distribution, thereby ensuring adequate pressure inside the melts, a plurality of melts enter a water model cooling device under the action of the pressure of the extruder, and the water model cooling device instantaneously cools a plurality of melts from about 300 DEG C to 60 to 80 DEG C in order to achieve instant formation of the polyamide thermal barrier strip. The preparation technology with simple process can achieve instant and fast formation of a plurality of laminated polyamide thermal barriers, which dramatically enhances production efficiency and simultaneously ensures the quality of formed objects.
Description
Technical field
The present invention relates to a kind of production technology of heat insulating strip, more particularly, is a kind of preparation technology of polyamide thermal barrier strip.
Background technology
According to statistics, architectural energy consumption accounts for 1/4th of national total energy consumption, wherein the energy that scatters and disappears by common building thing window accounts for about 50% of the whole energy consumptions of building, the south common air-conditioning temperature-reducing that adopts in summer, and the heat insulating effect of existing common building thing window is not good, cause a large amount of consumption of electric energy, on the building heat preserving performance, China's common aluminum alloy window energy consumption is 2.2 times of developed country.
For this reason, after deliberation, people are used for realizing the window heat insulating effect with polyamide thermal barrier strip, the patent No. provides a kind of penetrating bar type aluminium alloy heat-insulating energy-saving window for 200910101012.2 patent of invention, it utilizes polyamide thermal barrier strip to be interspersed in the groove of window hooked rabbet etc., realizes the energy-saving and thermal insulating of window.
Yet existing polyamide thermal barrier strip effect of heat insulation does not in actual use reach the effect of exceeding the time limit, and mainly is because there are quality problems in polyamide thermal barrier strip in preparation process; In existing preparation technology, adopt at the extruder extruding end increases extruding of a molding tool realization melt more, and utilize air-cooled or the built-in water-cooling moulding, and melt the pressure in the melt is progressively reducing in this process of mould being extruded into from extruder, uniformity when this will have influence on moulding and quality, and the present type of cooling, the melt cooling is needed the regular hour, and polyamide very easily is subjected to influence of temperature variation, can be in this process of melt cooling along with the continuous variation of temperature, shape takes place constantly to change, and makes quality problems such as existing uneven distribution after the moulding, and long can reduce the efficient of producing cool time.
In addition, existing polyamide thermal barrier strip forming technique, the heat insulating strip limited amount that each in process of production processing is extruded greatly reduces production efficiency; And raw material mostly adopts nylon and glass, makes product unstable properties in the preparation forming process, influenced the product quality after the moulding to a certain extent.
Summary of the invention
The object of the present invention is to provide a kind of polyamide thermal barrier strip preparation technology, solve the not enough problem that exists in the present processing technology, make the polyamide thermal barrier strip thin and thick that processes even, the heat-proof quality excellence.
The technical solution adopted in the present invention is as follows:
A kind of polyamide thermal barrier strip preparation technology, its flow process mainly comprises: raw material preparation, alloy particle, drying, extruding, flow distribution plate pressurization shunting, water mould cooling forming; Be specially:
1) raw material preparation: will prepare required raw material PA66 resin slicer, glass, flexibilizer, phase solvent, hydrolysis agent, nylon look because of weighing, by weight percentage, wherein the PA66 resin slicer is 63～66 parts, 23～26 parts of glasses, 6～6.5 parts of flexibilizer, 1～1.5 part of phase solvent, 0.2～0.5 part of hydrolysis agent, the nylon look is because of 1～1.5 part.
Described flexibilizer is preferably polyolefin elastomer POE;
Described phase solvent is preferably γ-glycidyl ether oxygen propyl trimethoxy silicane KH560;
Described hydrolysis agent is preferably TUF4588;
2) alloy particle: the raw material that prepare are mixing in double screw extruder, be refined into alloy particle, and guarantee to mix;
3) drying: utilize drying machine that alloy particle is carried out drying under vacuum;
4) extruding: utilize extruder that the rapid dried alloy particle of previous step is pushed and be extruded into flow distribution plate;
At this moment, the alloy particle of extruding is a melt, and melt temperature is controlled at 290～320 ℃.
5) flow distribution plate pressurization shunting: utilize pressue device to the shunting of pressurizeing of the melt of flow distribution plate inner chamber, there is enough pressure assurance melt inside;
Above-mentioned flow distribution plate can be divided into melt a plurality of branches of multilayer, and flow distribution plate is connected with the extrusion die supporting with it, can require to adopt different moulds according to moulding.
Above-mentioned pressue device, mainly constitute by compression pump, Pressure gauge, pressure sensor, pressure sensor stretches in the flow distribution plate, Pressure gauge shows the force value that pressure sensor records in real time, as littler than setting value, then frequency converter sends a signal to the extruder motor, the extrusion pressure of the extruder that increases sharply, simultaneously by the timely supplementary pressure in flow distribution plate of compression pump, can real-time ensuring melt pressure inside.
6) water mould cooling forming: many melts enter the water mould cooling apparatus under the effect of extruder pressure, and water mould cooling apparatus moment is cooled to 60～80 ℃ with many melts by about 300 ℃, realize polyamide thermal barrier strip moment moulding;
Above-mentioned water mould cooling apparatus, adopt the hydronic mode of water, many water-circulating pipes are entered by the cooling device upper end, in cooling device, form the water circulation fast, and the built-in 8 layers of fin of water mould, fin can help to separate melt heat moment is transferred in the water, and along with the circulation of water sheds.
Preparation technology of the present invention is simple, can realize many extrusion moldings of polyamide thermal barrier strip layering, improved production efficiency greatly, adopt melt moment cooling forming simultaneously, make the polyamide thermal barrier strip thickness of preparation even, avoided melt in forming process because of variations in temperature influences product quality, adopt pressue device can ensure pressure in the melt in real time simultaneously, ensured the quality of product.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is preparation flow figure of the present invention.
The specific embodiment
See Fig. 1, a kind of polyamide thermal barrier strip preparation technology, its flow process mainly comprises: raw material preparation, alloy particle, drying, extruding, flow distribution plate pressurization shunting, water mould cooling forming are specially:
1) raw material preparation: will prepare required raw material PA66 resin slicer, glass, flexibilizer, phase solvent, hydrolysis agent, nylon look because of weighing, by weight percentage, wherein the PA66 resin slicer is 63～66 parts, 23～26 parts of glasses, 6～6.5 parts of flexibilizer, 1～1.5 part of phase solvent, 0.2～0.5 part of hydrolysis agent, the nylon look is because of 1～1.5 part.
Described flexibilizer is preferably polyolefin elastomer POE;
Described phase solvent is preferably γ-glycidyl ether oxygen propyl trimethoxy silicane KH560;
Described hydrolysis agent is preferably TUF4588;
2) alloy particle: the raw material that prepare are mixing in double screw extruder, be refined into alloy particle, and guarantee to mix;
3) drying: utilize drying machine that alloy particle is carried out drying under vacuum;
4) extruding: utilize extruder that the rapid dried alloy particle of previous step is pushed and be extruded into flow distribution plate;
At this moment, the alloy particle of extruding is a melt, and melt temperature is controlled at 290～320 ℃.
5) flow distribution plate pressurization shunting: utilize pressue device to the shunting of pressurizeing of the melt of flow distribution plate inner chamber, there is enough pressure assurance melt inside;
Above-mentioned flow distribution plate can be divided into melt a plurality of branches of multilayer, and flow distribution plate is connected with the extrusion die supporting with it, can require to adopt different moulds according to moulding.
Above-mentioned pressue device, mainly constitute by compression pump, Pressure gauge, pressure sensor, pressure sensor stretches in the flow distribution plate, Pressure gauge shows the force value that pressure sensor records in real time, as littler than setting value, then frequency converter sends a signal to the extruder motor, the extrusion pressure of the extruder that increases sharply, simultaneously by the timely supplementary pressure in flow distribution plate of compression pump, can real-time ensuring melt pressure inside.
The available pressure of above-mentioned compression pump is between 0～100Pa.
6) water mould cooling forming: many melts enter the water mould cooling apparatus under the effect of extruder pressure, and water mould cooling apparatus moment is cooled to 60～80 ℃ with many melts by about 300 ℃, realize polyamide thermal barrier strip moment moulding;
Above-mentioned water mould cooling apparatus, adopt the hydronic mode of water, many water-circulating pipes are entered by the cooling device upper end, in cooling device, form the water circulation fast, and the built-in 8 layers of fin of water mould, fin can help to separate melt heat moment is transferred in the water, and along with the circulation of water sheds.
The preparation of embodiment 1:I type polyamide thermal barrier strip: with raw material PA66 resin slicer, glass, polyolefin elastomer POE, γ-glycidyl ether oxygen propyl trimethoxy silicane KH560, TUF4588, the nylon look is because of the preparation of weighing, by weight percentage, wherein the PA66 resin slicer is 66 parts, 25 parts of glasses, 6 parts of flexibilizer, 1 part of phase solvent, 0.5 part of hydrolysis agent, the nylon look is because of 1.5 parts, the raw material that prepare are mixing in double screw extruder, be refined into alloy particle, utilize drying machine that alloy particle is carried out drying again under vacuum, utilize extruder that dried alloy particle is pushed and be extruded into flow distribution plate, the control melt temperature is at 290～320 ℃, utilize pressue device that the melt of flow distribution plate inner chamber is pressurizeed, utilize flow distribution plate that melt is divided into two-layer 20 branches up and down, the supporting extrusion die that is connected with flow distribution plate adopts I pattern tool, 20 melts enter the water mould cooling apparatus under the effect of extruder pressure, water mould cooling apparatus moment is cooled to 60～80 ℃ with many melts by about 300 ℃, realize polyamide thermal barrier strip moment moulding, make I type polyamide thermal barrier strip.
The preparation of embodiment 2:C type polyamide thermal barrier strip: with raw material PA66 resin slicer, glass, polyolefin elastomer POE, γ-glycidyl ether oxygen propyl trimethoxy silicane KH560, TUF4588, the nylon look is because of the preparation of weighing, by weight percentage, wherein the PA66 resin slicer is 65 parts, 26 parts of glasses, 6.5 parts of flexibilizer, 1 part of phase solvent, 0.5 part of hydrolysis agent, the nylon look is because of 1 part, the raw material that prepare are mixing in double screw extruder, be refined into alloy particle, utilize drying machine that alloy particle is carried out drying again under vacuum, utilize extruder that dried alloy particle is pushed and be extruded into flow distribution plate, the control melt temperature is at 290～320 ℃, utilize pressue device that the melt of flow distribution plate inner chamber is pressurizeed, utilize flow distribution plate that melt is divided into two-layer 20 branches up and down, the supporting extrusion die that is connected with flow distribution plate adopts C pattern tool, 20 melts enter the water mould cooling apparatus under the effect of extruder pressure, water mould cooling apparatus moment is cooled to 60～80 ℃ with many melts by about 300 ℃, realize polyamide thermal barrier strip moment moulding, make C type polyamide thermal barrier strip.
The preparation of embodiment 3:K type polyamide thermal barrier strip: with raw material PA66 resin slicer, glass, polyolefin elastomer POE, γ-glycidyl ether oxygen propyl trimethoxy silicane KH560, TUF4588, the nylon look is because of the preparation of weighing, by weight percentage, wherein the PA66 resin slicer is 65 parts, 25 parts of glasses, 6.5 parts of flexibilizer, 1.5 parts of phase solvents, 0.5 part of hydrolysis agent, the nylon look is because of 1.5 parts, the raw material that prepare are mixing in double screw extruder, be refined into alloy particle, utilize drying machine that alloy particle is carried out drying again under vacuum, utilize extruder that dried alloy particle is pushed and be extruded into flow distribution plate, the control melt temperature is at 290～320 ℃, utilize pressue device that the melt of flow distribution plate inner chamber is pressurizeed, utilize flow distribution plate that melt is divided into two-layer 20 branches up and down, the supporting extrusion die that is connected with flow distribution plate adopts K pattern tool, 20 melts enter the water mould cooling apparatus under the effect of extruder pressure, water mould cooling apparatus moment is cooled to 60～80 ℃ with many melts by about 300 ℃, realize polyamide thermal barrier strip moment moulding, make K type polyamide thermal barrier strip.
Utilize the present invention can also prepare the polyamide thermal barrier strip of T type and other shapes, so in this not implementation example explanation one by one.
Polyamide thermal barrier strip partial properties to above-mentioned preparation is tested, and test result sees Table 1,
| Test event | Technical indicator | Assay |
| The load deformation temperature, (0.45MPa) ℃ | ??≥240 | ??＞243 |
| The vertical tension characteristic value of room temperature, MPa | ??≥80 | ??93.4 |
| Elongation at break | ??≥2.5 | ??24.1 |
| The horizontal tension characteristic value of room temperature, MPa | ??≥70 | ??86.2 |
| The horizontal tension characteristic value of high temperature, MPa | ??≥45 | ??51.1 |
| The horizontal tension characteristic value of low temperature, MPa | ??≥80 | ??105 |
Table 1
Claims (6)
1. a polyamide thermal barrier strip preparation technology is characterized in that flow process mainly comprises: raw material preparation, alloy particle, drying, extruding, flow distribution plate pressurization shunting, water mould cooling forming; Be specially:
1) raw material preparation: will prepare required raw material PA66 resin slicer, glass, flexibilizer, phase solvent, hydrolysis agent, nylon look because of weighing, by weight percentage, wherein the PA66 resin slicer is 63～66 parts, 23～26 parts of glasses, 6～6.5 parts of flexibilizer, 1～1.5 part of phase solvent, 0.2～0.5 part of hydrolysis agent, the nylon look is because of 1～1.5 part.
2) alloy particle: the raw material that prepare are mixing in double screw extruder, be refined into alloy particle, and guarantee to mix;
3) drying: utilize drying machine that alloy particle is carried out drying under vacuum;
4) extruding: utilize extruder that the rapid dried alloy particle of previous step is pushed and be extruded into flow distribution plate;
5) flow distribution plate pressurization shunting: utilize pressue device to the shunting of pressurizeing of the melt of flow distribution plate inner chamber, there is enough pressure assurance melt inside;
6) water mould cooling forming: many melts enter the water mould cooling apparatus under the effect of extruder pressure, and water mould cooling apparatus moment is cooled to 60～80 ℃ with many melts by about 300 ℃, realize polyamide thermal barrier strip moment moulding.
2. a kind of polyamide thermal barrier strip preparation technology according to claim 1 is characterized in that, described flexibilizer is preferably polyolefin elastomer POE; Described phase solvent is preferably γ-glycidyl ether oxygen propyl trimethoxy silicane KH560; Described hydrolysis agent is preferably TUF4588.
3. a kind of polyamide thermal barrier strip preparation technology according to claim 1 is characterized in that, the alloy particle that extruder is extruded is a melt, and melt temperature is controlled at 290～320 ℃.
4. a kind of polyamide thermal barrier strip preparation technology according to claim 1 is characterized in that, described flow distribution plate can be divided into melt a plurality of branches of multilayer, and flow distribution plate is connected with the extrusion die supporting with it, can require to adopt different moulds according to moulding.
5. a kind of polyamide thermal barrier strip preparation technology according to claim 1, it is characterized in that, described pressue device, mainly constitute by compression pump, Pressure gauge, pressure sensor, pressure sensor stretches in the flow distribution plate, Pressure gauge shows the force value that pressure sensor records in real time, as littler than setting value, then frequency converter sends a signal to the extruder motor, the extrusion pressure of extruder increases sharply, simultaneously by the timely supplementary pressure in flow distribution plate of compression pump, can real-time ensuring melt pressure inside, above-mentioned compression pump can provide the pressure of 0～100Pa.
6. a kind of polyamide thermal barrier strip preparation technology according to claim 1, it is characterized in that, described water mould cooling apparatus, adopt the hydronic mode of water, many water-circulating pipes are entered by the cooling device upper end, form water circulation and the built-in 8 layers of fin of water mould in cooling device fast, fin can help to separate melt heat moment is transferred in the water, and along with the circulation of water sheds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010152663A CN101817218A (en) | 2010-04-21 | 2010-04-21 | Polyamide thermal barrier strip preparation technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010152663A CN101817218A (en) | 2010-04-21 | 2010-04-21 | Polyamide thermal barrier strip preparation technology |
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| CN101817218A true CN101817218A (en) | 2010-09-01 |
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| CN201010152663A Pending CN101817218A (en) | 2010-04-21 | 2010-04-21 | Polyamide thermal barrier strip preparation technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303398A (en) * | 2011-09-15 | 2012-01-04 | 芜湖精塑实业有限公司 | Extrusion forming system for heat insulating strip |
| CN102432998A (en) * | 2011-11-01 | 2012-05-02 | 芜湖精塑实业有限公司 | Master bathes of polyamide heat insulating strip |
| CN105111733A (en) * | 2015-09-20 | 2015-12-02 | 成都育芽科技有限公司 | Thermal insulating strip made of reinforced nylon composite material for building doors and windows |
-
2010
- 2010-04-21 CN CN201010152663A patent/CN101817218A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303398A (en) * | 2011-09-15 | 2012-01-04 | 芜湖精塑实业有限公司 | Extrusion forming system for heat insulating strip |
| CN102432998A (en) * | 2011-11-01 | 2012-05-02 | 芜湖精塑实业有限公司 | Master bathes of polyamide heat insulating strip |
| CN105111733A (en) * | 2015-09-20 | 2015-12-02 | 成都育芽科技有限公司 | Thermal insulating strip made of reinforced nylon composite material for building doors and windows |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wang Zhongshui Assignor: Shanghai Youtai Decoration Material Co., Ltd. Contract record no.: 2010310000204 Denomination of invention: Polyamide thermal barrier strip preparation technology License type: Exclusive License Open date: 20100901 Record date: 20101105 |
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Assignee: Shanghai Youtai Decoration Material Co., Ltd. Assignor: Wang Zhongshui Contract record no.: 2010310000204 Denomination of invention: Polyamide thermal barrier strip preparation technology License type: Exclusive License Open date: 20100901 Record date: 20101105 |
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