CN105295366A - Polyamide thermal insulation strip preparation process - Google Patents
Polyamide thermal insulation strip preparation process Download PDFInfo
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- CN105295366A CN105295366A CN201410294685.5A CN201410294685A CN105295366A CN 105295366 A CN105295366 A CN 105295366A CN 201410294685 A CN201410294685 A CN 201410294685A CN 105295366 A CN105295366 A CN 105295366A
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Abstract
The invention discloses a polyamide thermal insulation strip preparation process. The process mainly comprises the steps of granulation, drying and extrusion molding. According to the invention, raw materials are added into a twin-screw granulator according to a certain ratio, such that granulation modification is carried out, wherein a temperature is 250 DEG C; the modified raw material is dried in a cylinder, wherein a temperature is controlled at above 90 DEG C, and a drying time is 4h; the dried raw material is subjected to extrusion molding with an extruder and a corresponding precise mold, wherein the temperature is controlled at above 260 DEG C. The preparation process is simple. The prepared polyamide thermal insulation strip has good thermal insulation effect, good heat resistance, good weather resistance, and good ultraviolet aging resistance. During the processing process, mold blockage and strip breaking phenomena are prevented. The thermal insulation strip has smooth surface, high dimensional precision, and good overall mechanical properties.
Description
Technical field
The present invention relates to a kind of production technique of heat insulating strip, be specifically related to a kind of preparation technology of urethane heat insulating strip.
Background technology
The country such as Germany and Italy has carried out exploration for many years to heat insulating strip product, and the high-performance glass fiber reinforced nylon 66 aluminium section bar door and window heat insulating strip of its exploitation, property indices reaches higher level.
Existing heat insulating strip production technique is mainly taked melt emptying, stretched mould, directly flowing water is shaping, the shortcoming of this technique is that emptying section molten mass easily causes the phenomenon such as snap gauge tool, disconnected bar when entering mould, simultaneously because direct cold water causes product surface coarse, dimensional precision is difficult to ensure, greasy dirt phenomenon is obvious.In addition, because emptying section is Zi leaving forcing machine this segment distance to mould, the temperature difference is large instantaneously, the coarse inequality of crystal grain of nylon66 fiber, and then causes the overall mechanical property of product not good.
Summary of the invention
The present invention be directed to above Problems existing with not enough, provide a kind of urethane thermal barrier strip preparation technology, the urethane heat insulating strip tensile strength of preparation is high, improves the surface smoothness of heat insulating strip, improves extruded stock melt flow rate (MFR), reduces the wearing and tearing to equipment simultaneously.
In order to achieve the above object, the technical solution used in the present invention is:
Polyamide thermal barrier strip preparation technology, is characterized in that, flow process mainly comprises granulation, oven dry, extrusion moulding; Be specially:
1) granulation: raw material PA66, glass fibre, lubrication dispersing agent, coupling agent, anti-ultraviolet ageing auxiliary agent are added dual-screw pelletizer according to a certain percentage, carries out making material modification; By weight percentage, wherein PA6665 ~ 68 part, 24 ~ 27 parts, glass fibre, toughner 4.8 ~ 5.5 parts, lubrication dispersing agent 1.2 ~ 1.5 parts, coupling agent 1.4 ~ 1.8 parts, anti-ultraviolet ageing agent 0.1 ~ 0.4 part; Wherein temperature is 250 DEG C;
2) dry: inserted in barrel by the raw material that modification is good and dry, temperature controls more than 90 DEG C, and drying time is 4 hours;
3) extrusion moulding: the precision die extrusion moulding raw material of drying being passed through forcing machine and correspondence, temperature controls more than 260 DEG C.
Described lubrication dispersing agent is polyol fatty acid, lubrication dispersing agent add the consistency can improving PA66, glass fibre and coupling agent, phase interface is disappeared, form cross-linking set, glass fibre can be improved to leak outside phenomenon, improve extruded stock melt flow rate (MFR), improve heat insulating strip surface smoothness, also build the wearing and tearing to equipment simultaneously.
Described coupling agent is silane coupling agent, and alkane silicone couplet makes to form chemical bond between glass fibre and matrix resin, improves reactive force between the two.
Described anti-ultraviolet ageing selection of auxiliary unimolecular N-alkoxy hindered amine stablizer, described toughner is polyolefin elastomer toughner,
Preparation technology of the present invention is simple, the urethane heat insulating strip good heat-insulation effect of preparation, heat-resisting good weatherability, and anti-ultraviolet aging performance is good, and there will not be snap gauge tool, disconnected bar phenomenon in the course of processing, heat insulating strip any surface finish, dimensional precision is high, overall mechanics excellent performance.
Embodiment
Polyamide thermal barrier strip preparation technology, is characterized in that, flow process mainly comprises granulation, oven dry, extrusion moulding; Be specially:
1) granulation: raw material PA66, glass fibre, toughner, lubrication dispersing agent, coupling agent, anti-ultraviolet ageing auxiliary agent are added dual-screw pelletizer according to a certain percentage, carries out making material modification; By weight percentage, wherein PA6665 ~ 68 part, 24 ~ 27 parts, glass fibre, toughner 4.8 ~ 5.5 parts, lubrication dispersing agent 1.2 ~ 1.5 parts, coupling agent 1.4 ~ 1.8 parts, anti-ultraviolet ageing agent 0.1 ~ 0.4 part; Wherein temperature is 250 DEG C;
Described lubrication dispersing agent is polyol fatty acid;
Described coupling agent is silane coupling agent;
Described anti-ultraviolet ageing selection of auxiliary unimolecular N-alkoxy hindered amine stablizer;
Described toughner is polyolefin elastomer toughner;
2) dry: inserted in barrel by the raw material that modification is good and dry, temperature controls more than 90 DEG C, and drying time is 4 hours;
3) extrusion moulding: the precision die extrusion moulding raw material of drying being passed through forcing machine and correspondence, temperature controls more than 260 DEG C;
4) coding mark: work in-process are carried out coding mark by fully-automatic laser coder;
5) finished product packing: the product of mark is carried out packing according to customer requirement, point vertical bar and package;
6) finished product warehouse-in.
Embodiment 1: the preparation of polyamide thermal barrier strip, adds dual-screw pelletizer according to a certain percentage by raw material PA66, glass fibre, lubrication dispersing agent, coupling agent, anti-ultraviolet ageing auxiliary agent, carries out making material modification; By weight percentage, wherein PA6668 part, 24 parts, glass fibre, toughner 5.2 parts, lubrication dispersing agent 1.2 parts, coupling agent 1.5 parts, anti-ultraviolet ageing agent 0.1 part; Temperature controls at 250 DEG C; Inserted in barrel by the raw material that modification is good and dry, temperature controls more than 90 DEG C, and drying time is 4 hours; The raw material of drying is passed through the precision die extrusion moulding of forcing machine and correspondence, temperature controls more than 260 DEG C; Work in-process are carried out coding mark by fully-automatic laser coder; The product of mark is carried out packing according to customer requirement, point vertical bar and package, warehouse-in.
Embodiment 2: the preparation of polyamide thermal barrier strip, adds dual-screw pelletizer according to a certain percentage by raw material PA66, glass fibre, lubrication dispersing agent, coupling agent, anti-ultraviolet ageing auxiliary agent, carries out making material modification; By weight percentage, wherein PA6668 part, 24 parts, glass fibre, toughner 4.8 parts, lubrication dispersing agent 1.5 parts, coupling agent 1.4 parts, anti-ultraviolet ageing agent 0.3 part; Temperature controls at 250 DEG C; Inserted in barrel by the raw material that modification is good and dry, temperature controls more than 90 DEG C, and drying time is 4 hours; The raw material of drying is passed through the precision die extrusion moulding of forcing machine and correspondence, temperature controls more than 260 DEG C; Work in-process are carried out coding mark by fully-automatic laser coder; The product of mark is carried out packing according to customer requirement, point vertical bar and package, warehouse-in.
Embodiment 3: the preparation of polyamide thermal barrier strip, adds dual-screw pelletizer according to a certain percentage by raw material PA66, glass fibre, lubrication dispersing agent, coupling agent, anti-ultraviolet ageing auxiliary agent, carries out making material modification; By weight percentage, wherein PA6666 part, 25 parts, glass fibre, toughner 5.5 parts, lubrication dispersing agent 1.3 parts, coupling agent 1.8 parts, anti-ultraviolet ageing agent 0.4 part; Temperature controls at 250 DEG C; Inserted in barrel by the raw material that modification is good and dry, temperature controls more than 90 DEG C, and drying time is 4 hours; The raw material of drying is passed through the precision die extrusion moulding of forcing machine and correspondence, temperature controls more than 260 DEG C; Work in-process are carried out coding mark by fully-automatic laser coder; The product of mark is carried out packing according to customer requirement, point vertical bar and package, warehouse-in.
The polyamide thermal barrier strip partial properties of above-mentioned preparation is tested, test result in table 1,
Note: standard state refers to that room temperature is the experimental state of 23 ± 2 DEG C and relative humidity 50% ± 5%.
Claims (2)
1. polyamide thermal barrier strip preparation technology, is characterized in that, flow process mainly comprises granulation, oven dry, extrusion moulding; Be specially:
1) granulation: raw material PA66, glass fibre, lubrication dispersing agent, coupling agent, anti-ultraviolet ageing auxiliary agent are added dual-screw pelletizer according to a certain percentage, carries out making material modification; By weight percentage, wherein PA6665 ~ 68 part, 24 ~ 27 parts, glass fibre, toughner 4.8 ~ 5.5 parts, lubrication dispersing agent 1.2 ~ 1.5 parts, coupling agent 1.4 ~ 1.8 parts, anti-ultraviolet ageing agent 0.1 ~ 0.4 part; Wherein temperature is 250 DEG C;
2) dry: inserted in barrel by the raw material that modification is good and dry, temperature controls more than 90 DEG C, and drying time is 4 hours;
3) extrusion moulding: the precision die extrusion moulding raw material of drying being passed through forcing machine and correspondence, temperature controls more than 260 DEG C.
2. polyamide thermal barrier strip preparation technology according to claim 1, it is characterized in that, described toughner is polyolefin elastomer toughner, described lubrication dispersing agent is polyol fatty acid, described coupling agent is silane coupling agent, described anti-ultraviolet ageing selection of auxiliary unimolecular N-alkoxy hindered amine stablizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410294685.5A CN105295366A (en) | 2014-06-27 | 2014-06-27 | Polyamide thermal insulation strip preparation process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410294685.5A CN105295366A (en) | 2014-06-27 | 2014-06-27 | Polyamide thermal insulation strip preparation process |
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| CN105295366A true CN105295366A (en) | 2016-02-03 |
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| CN201410294685.5A Pending CN105295366A (en) | 2014-06-27 | 2014-06-27 | Polyamide thermal insulation strip preparation process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108034239A (en) * | 2017-12-06 | 2018-05-15 | 常州鼎众冷暖设备工程有限公司 | One kind prevents old type heat insulating strip |
| CN109486183A (en) * | 2018-10-25 | 2019-03-19 | 六安亚泰新材料有限公司 | A kind of high tenacity polyamide heat insulating strip master batch |
| CN113248911A (en) * | 2021-02-01 | 2021-08-13 | 上海优泰装饰材料有限公司 | Heat insulation strip and drying process for producing same |
| CN113278284A (en) * | 2021-03-30 | 2021-08-20 | 上海优泰装饰材料有限公司 | Heat insulation strip and drying process for producing same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1935900A (en) * | 2006-10-20 | 2007-03-28 | 邓凯桓 | Special reinforced toughened nylon66 composite material for aluminium alloy profile insulating bar and its preparing method |
| US20070264465A1 (en) * | 2004-01-31 | 2007-11-15 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Method for the Production of a Web of Insulating Material Made of Mineral Fibres and Web of Insulating Material |
| CN101307147A (en) * | 2007-09-18 | 2008-11-19 | 佛山市南海易乐工程塑料有限公司 | Glass fibre reinforced nylon colorful heat insulation stripe for al-alloy door & window and method for preparing same |
-
2014
- 2014-06-27 CN CN201410294685.5A patent/CN105295366A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070264465A1 (en) * | 2004-01-31 | 2007-11-15 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Method for the Production of a Web of Insulating Material Made of Mineral Fibres and Web of Insulating Material |
| CN1935900A (en) * | 2006-10-20 | 2007-03-28 | 邓凯桓 | Special reinforced toughened nylon66 composite material for aluminium alloy profile insulating bar and its preparing method |
| CN101307147A (en) * | 2007-09-18 | 2008-11-19 | 佛山市南海易乐工程塑料有限公司 | Glass fibre reinforced nylon colorful heat insulation stripe for al-alloy door & window and method for preparing same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108034239A (en) * | 2017-12-06 | 2018-05-15 | 常州鼎众冷暖设备工程有限公司 | One kind prevents old type heat insulating strip |
| CN109486183A (en) * | 2018-10-25 | 2019-03-19 | 六安亚泰新材料有限公司 | A kind of high tenacity polyamide heat insulating strip master batch |
| CN113248911A (en) * | 2021-02-01 | 2021-08-13 | 上海优泰装饰材料有限公司 | Heat insulation strip and drying process for producing same |
| CN113248911B (en) * | 2021-02-01 | 2022-07-12 | 上海优泰装饰材料有限公司 | Drying process for heat insulation strips |
| CN113278284A (en) * | 2021-03-30 | 2021-08-20 | 上海优泰装饰材料有限公司 | Heat insulation strip and drying process for producing same |
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