CN1327908A - Method for manufacturing thermally shrinking dual-layer sleeved tube - Google Patents
Method for manufacturing thermally shrinking dual-layer sleeved tube Download PDFInfo
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- CN1327908A CN1327908A CN 01119965 CN01119965A CN1327908A CN 1327908 A CN1327908 A CN 1327908A CN 01119965 CN01119965 CN 01119965 CN 01119965 A CN01119965 A CN 01119965A CN 1327908 A CN1327908 A CN 1327908A
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- thermal contraction
- casing tube
- contraction casing
- heat shrinkable
- double
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Abstract
A process for preparing thermally shrinking dual-layer sleeved tube includes such steps as extruding out internal and external thermally shrinking tubes with hig-molecular material and hot-fusible adhesive, radiating external tube, putting internal tube in the external one, and heating them to 80-100 deg.C to make its shrinkage be 5-10 % of whole shrinkage. Its advantages are low cost and high quality and stability.
Description
The present invention relates to technical field of polymer materials, refer in particular to a kind of method that adopts macromolecular materials such as polyolefin and PUR to make double-layer heat shrinkable sheathing.
Along with developing rapidly of pillar industries such as electronic apparatus, communication and automobile, thermal contraction casing tube is because it has heat-shrinkable, electric insulating quality, sealing corrosion protection and intensity height, advantage such as easy to use, and is widely used in the sophisticated technology fields such as military affairs, communication.Traditional thermal contraction casing tube is the individual layer sleeve pipe, and its poor sealing performance is not strong with the material cohesive force of being wrapped up yet.Existing double-layer heat shrinkable sheathing then can be avoided above-mentioned defective, and its general manufacture method is: at first selecting internal layer for use is that PUR, skin are the raw material of water crosslinking macromolecular material, adopts two special-purpose extruders successively to extrude inside and outside layer thermal contraction casing tube then.This method is owing to needing two special-purpose extruders that equipment investment is increased; Because its processing technology is comparatively complicated, required precision is higher, cause its production efficiency lower again; Because thermal contraction casing tube has adopted water crosslinking type macromolecular material, cause the last double-layer heat shrinkable sheathing quality instability that forms again.
The object of the present invention is to provide a kind of method that adopts macromolecular materials such as polyolefin and PUR to make double-layer heat shrinkable sheathing.
The present invention is achieved through the following technical solutions: outer thermal contraction casing tube adopts polyolefine material, as the copolymer of vinyl acetate and ethene or the misery fat of polypropylene etc.; The internal layer thermal contraction casing tube adopts hot melt adhesive material, as tackifying resin etc., make double-layer heat shrinkable sheathing of the presently claimed invention then as follows: one, on common extruder, extrude outer thermal contraction casing tube by required size, with irradiation bombs such as electron accelerator or cobalts 60 above-mentioned thermal contraction casing tube is carried out irradiation, crosslinked again, then expand; Two, on common extruder, extrude the internal layer thermal contraction casing tube by required size, then this internal layer thermal contraction casing tube is inserted in the good outer thermal contraction casing tube of above-mentioned crosslinked expansion; Three, the heating above-mentioned double-layer heat shrinkable sheathing to 80 that has packaged～100 ℃, after the appropriate time, make its shrinkage factor when all shrinking shrinkage factor 5～10%.
Because the present invention only need use common extruder can produce high-quality double-layer heat shrinkable sheathing, thereby can save equipment investment; Because the material of thermal contraction casing tube of the present invention is realized crosslinkedly by irradiation, and do not resemble the macromolecular material of direct use water crosslinking the prior art again, thereby it is stable to make the double-layer heat shrinkable sheathing quality parameter of gained; Again because its processing method is simple, can finish by hand during the assembling bilayer sleeve, thereby its production efficiency can the first mate improve, and significantly saves production cost and labor cost.
The present invention is further described below in conjunction with embodiment:
Outer thermal contraction casing tube adopts polyolefine material, as the copolymer of vinyl acetate and ethene or the misery fat of polypropylene etc.; The internal layer thermal contraction casing tube adopts hot melt adhesive material, as tackifying resin etc., makes double-layer heat shrinkable sheathing of the presently claimed invention then as follows:
Embodiment 1, one, on common extruder, extrude outer thermal contraction casing tube, with irradiation bombs such as electron accelerator or cobalts 60 above-mentioned thermal contraction casing tube is carried out irradiation, crosslinked again, then expand by required size; Two, on common extruder, extrude the internal layer thermal contraction casing tube by required size, then this internal layer thermal contraction casing tube is inserted in the good outer thermal contraction casing tube of above-mentioned crosslinked expansion; Three, the heating above-mentioned double-layer heat shrinkable sheathing to 80 that has packaged ℃, after the appropriate time, make its shrinkage factor when all shrinking shrinkage factor 5%.Thus, can obtain double-layer heat shrinkable sheathing of the presently claimed invention.
Embodiment 2, one, on common extruder, extrude outer thermal contraction casing tube, with irradiation bombs such as electron accelerator or cobalts 60 above-mentioned thermal contraction casing tube is carried out irradiation, crosslinked again, then expand by required size; Two, on common extruder, extrude the internal layer thermal contraction casing tube by required size, then this internal layer thermal contraction casing tube is inserted in the good outer thermal contraction casing tube of above-mentioned crosslinked expansion; Three, the heating above-mentioned double-layer heat shrinkable sheathing to 100 that has packaged ℃, after the appropriate time, make its shrinkage factor when all shrinking shrinkage factor 10%.Thus, also can obtain double-layer heat shrinkable sheathing of the presently claimed invention.
Embodiment 3, one, on common extruder, extrude outer thermal contraction casing tube, with irradiation bombs such as electron accelerator or cobalts 60 above-mentioned thermal contraction casing tube is carried out irradiation, crosslinked again, then expand by required size; Two, on common extruder, extrude the internal layer thermal contraction casing tube by required size, then this internal layer thermal contraction casing tube is inserted in the good outer thermal contraction casing tube of above-mentioned crosslinked expansion; Three, the heating above-mentioned double-layer heat shrinkable sheathing to 90 that has packaged ℃, after the appropriate time, make its shrinkage factor when all shrinking shrinkage factor 8%.Thus, also can obtain double-layer heat shrinkable sheathing of the presently claimed invention.
Claims (2)
1. make the method for double-layer heat shrinkable sheathing, it is characterized in that: one, on common extruder, extrude outer thermal contraction casing tube by required size, with irradiation bombs such as electron accelerator or cobalts 60 above-mentioned thermal contraction casing tube is carried out irradiation, crosslinked again, then expand; Two, on common extruder, extrude the internal layer thermal contraction casing tube by required size, then this internal layer thermal contraction casing tube is inserted in the good outer thermal contraction casing tube of above-mentioned crosslinked expansion; Three, heat the above-mentioned double-layer heat shrinkable sheathing to 80 that has packaged～100 ℃, after the appropriate time, make its shrinkage factor when all shrinking shrinkage factor 5～10%.
2. the method for manufacturing double-layer heat shrinkable sheathing according to claim 1 is characterized in that: outer thermal contraction casing tube adopts polyolefine material, as the copolymer of vinyl acetate and ethene or the misery fat of polypropylene etc.; The internal layer thermal contraction casing tube adopts hot melt adhesive material, as tackifying resin etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011199652A CN1180927C (en) | 2001-07-05 | 2001-07-05 | Method for manufacturing thermally shrinking dual-layer sleeved tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011199652A CN1180927C (en) | 2001-07-05 | 2001-07-05 | Method for manufacturing thermally shrinking dual-layer sleeved tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1327908A true CN1327908A (en) | 2001-12-26 |
| CN1180927C CN1180927C (en) | 2004-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011199652A Expired - Fee Related CN1180927C (en) | 2001-07-05 | 2001-07-05 | Method for manufacturing thermally shrinking dual-layer sleeved tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1180927C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965122A (en) * | 2009-07-25 | 2011-02-02 | 深圳市沃尔核材股份有限公司 | Magnetic multi-wall heat shrinkable tube and manufacturing method thereof |
| CN101615769B (en) * | 2009-07-31 | 2012-03-28 | 上海长园电子材料有限公司 | Transparent double-layer heat shrinkable sheathing |
| CN102485479A (en) * | 2010-12-01 | 2012-06-06 | 青岛华仕达机器有限公司 | Manufacturing technological process of heat seal heat shrinkable sleeve |
| CN102605963A (en) * | 2012-04-18 | 2012-07-25 | 中建六局工业设备安装有限公司 | Method for manufacturing double-layer tensioning sleeve of large-span ultrathin and ultralong steel stranded wire |
| CN102709007A (en) * | 2012-07-12 | 2012-10-03 | 深圳市博赛新材料有限公司 | Thermal setted coextruded heat shrinkable sleeving and method for producing same |
| CN105807369A (en) * | 2014-12-31 | 2016-07-27 | 上海长园电子材料有限公司 | Optical fiber splicing heat-shrinkable bush and preshrinking method therefor |
| CN111703062A (en) * | 2020-06-26 | 2020-09-25 | 重庆市鹤林电子材料有限公司 | Processing method of double-layer glass heat-shrinkable tube |
-
2001
- 2001-07-05 CN CNB011199652A patent/CN1180927C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101965122A (en) * | 2009-07-25 | 2011-02-02 | 深圳市沃尔核材股份有限公司 | Magnetic multi-wall heat shrinkable tube and manufacturing method thereof |
| CN101965122B (en) * | 2009-07-25 | 2014-07-09 | 深圳市沃尔核材股份有限公司 | Magnetic multi-wall heat shrinkable tube and manufacturing method thereof |
| CN101615769B (en) * | 2009-07-31 | 2012-03-28 | 上海长园电子材料有限公司 | Transparent double-layer heat shrinkable sheathing |
| CN102485479A (en) * | 2010-12-01 | 2012-06-06 | 青岛华仕达机器有限公司 | Manufacturing technological process of heat seal heat shrinkable sleeve |
| CN102485479B (en) * | 2010-12-01 | 2014-07-23 | 青岛华仕达机器有限公司 | Manufacturing technological process of heat seal heat shrinkable sleeve |
| CN102605963A (en) * | 2012-04-18 | 2012-07-25 | 中建六局工业设备安装有限公司 | Method for manufacturing double-layer tensioning sleeve of large-span ultrathin and ultralong steel stranded wire |
| CN102709007A (en) * | 2012-07-12 | 2012-10-03 | 深圳市博赛新材料有限公司 | Thermal setted coextruded heat shrinkable sleeving and method for producing same |
| CN102709007B (en) * | 2012-07-12 | 2014-07-02 | 深圳市博赛新材料有限公司 | Thermal setted coextruded heat shrinkable sleeving and method for producing same |
| CN105807369A (en) * | 2014-12-31 | 2016-07-27 | 上海长园电子材料有限公司 | Optical fiber splicing heat-shrinkable bush and preshrinking method therefor |
| CN111703062A (en) * | 2020-06-26 | 2020-09-25 | 重庆市鹤林电子材料有限公司 | Processing method of double-layer glass heat-shrinkable tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1180927C (en) | 2004-12-22 |
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