CN104167257B - Optical cable tension gasket for packing - Google Patents
Optical cable tension gasket for packing Download PDFInfo
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- CN104167257B CN104167257B CN201410344989.8A CN201410344989A CN104167257B CN 104167257 B CN104167257 B CN 104167257B CN 201410344989 A CN201410344989 A CN 201410344989A CN 104167257 B CN104167257 B CN 104167257B
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Abstract
The present invention discloses a kind of optical cable tension gasket for packing, and tension gasket for packing is obtained by the component of following parts by weight by physical blowing：50 parts of foamed material semi-finished product, high density polyethylene (HDPE)（First）50 parts, 1 part of nucleation masterbatch；Foamed material semi-finished product are made up of the component of following parts by weight：Melt flow rate (MFR) is 0.03 ~ 0.09 g/10min 30 parts of low density polyethylene (LDPE), and melt flow rate (MFR) is 1.8 ~ 3.2 g/10min high density polyethylene (HDPE)（First）40 parts, melt flow rate (MFR) is 5 ~ 9 g/10min high density polyethylene (HDPE)（Second）30 parts, 15 parts of micron-class superfine calcium carbonate.Tension gasket for packing obtained by the present invention can combine closely as buried layer with plastic sheeting surrounding layer, increase tension, the lateral compressive strength of gasket for packing.
Description
Technical field
The present invention relates to gasket for packing, more particularly to a kind of optical cable tension gasket for packing.
Background technology
Optical cable gasket for packing is to fill up room in cable core in stranding process to make it keep a kind of element of rounding.Existing photoelectricity
Cable, because hardness is high, cable core is being stranding into other elements altogether with the solid cord that gasket for packing majority is that high density Insulation Material is extruded
When the extruding force that is subject in machine it is larger, limit high-speed production, and its easily Loose tube of extruding fiber unit etc. it is other
Element, deforms cable core, influences the roundness of optical cable.Secondly, solid cord raw material dosage is big, and manufacturing cost is high, its own weight
Amount is big, causes optical cable cost of transportation higher.In addition solid cord hardness is big, and external force resistance resiliency is poor, and protecting effect is not good enough.
For the deficiency of optical cable hatching solid rope, foaming filling rope for optical cables arises at the historic moment, its because cost of material is low,
Protecting effect is good, it is lightweight the advantages of and it is wide concerned, but the report applied at present on its manufacture method and market is relatively
It is few, and such gasket for packing is even more very few with the data of particulate material, and there are problems.As CN101382626A is disclosed
Packing gasket granule material in the patent of invention of a kind of " optical cable foaming packing gasket granule material and its production method ", the patented technology
Raw material has low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene, Tissuemat E, stearic acid, calcium stearate and tetrapentaerythritol fat
Deng its component is more, and proportional difference is larger, weighs trouble, is difficult to disperse, it is more difficult to well mixed；And due to each component unit price
Costly, manufacturing cost still quite has pressure；In addition, the addition of a variety of auxiliary agents is produced not using the final performance easily to product
Good influence, causes product air entrapment skewness, and can leave small molecule residue in reproduced goods, influences the mechanical property of product
Energy.
The content of the invention
It is an object of the invention to provide a kind of optical cable tension gasket for packing, it is weighed conveniently, saves manpower；Each component ratio
Example is more close, it is easy to be uniformly dispersed；Polyvinyl resin, calcium carbonate and nucleation masterbatch are comprised only in raw material, multiclass is reduced and helps
Harmful effect of the use of agent to plastics final performance；The addition of certain proportion calcium carbonate effectively reduces the cost of material；By
Foaming packing gasket body obtained by the particle can combine closely as buried layer with plastic sheeting surrounding layer, so that filling
The degree of drying of rope and the filling degree of air are more constant, increase tension, the lateral compressive strength of gasket for packing, are relatively beneficial to it to light
The protective effect of wave conductor；
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of optical cable tension gasket for packing, the filling
Restrict and obtained by the component of following parts by weight by physical blowing：
50 parts of foamed material semi-finished product,
High density polyethylene (HDPE)（First）50 parts,
1 part of nucleation masterbatch；
The foamed material semi-finished product are made up of the component of following parts by weight:
Melt flow rate (MFR) is 0.03 ~ 0.09 g/10min 30 parts of low density polyethylene (LDPE),
Melt flow rate (MFR) is 1.8 ~ 3.2 g/10min high density polyethylene (HDPE)（First）40 parts,
Melt flow rate (MFR) is 5 ~ 9 g/10min high density polyethylene (HDPE)（Second）30 parts,
15 parts of micron-class superfine calcium carbonate.
Above-mentioned foamed material semi-finished product melt flow rate (MFR) is 0.65 ± 0.20g/10min.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：
1. optical cable of the present invention tension gasket for packing, its gasket for packing hardness is moderate, the coefficient of expansion is small, in cabling process
It is difficult to make other deformed elements around, it is ensured that cable core roundness, and because foaming packing gasket is softer, is other elements process altogether
The extruding force being subject to when being extruded into cable core in device interior is smaller, can be with high-speed production；Secondly as foaming packing gasket density
Small, light specific gravity so that the weight of unit length optical cable finished product, it is possible to decrease the cost of transportation of optical cable；Again, foaming packing gasket raw material
Consume few, it is possible to decrease manufacturing cost, calcium carbonate unit price is relatively low, significantly reduces cost（Although the use of calcium carbonate exists
Adds somewhat to the weight of gasket for packing itself, but due in this patent gasket for packing be foaming packing gasket, therefore compare entity
Rope still has greater advantage in weight）；Constituent species are relatively fewer, and its unit price is relatively low compared to each analog assistant, thus overall system
Cause this that there is greater advantage；Each proportion of composing difference is smaller, is easy to weigh, and saves artificial.
2. optical cable of the present invention tension gasket for packing, its gasket for packing component ratio proportion difference is smaller, it is easy to claim
Take, artificial operating error is smaller, beneficial to the stability for ensureing product quality during batch production；Secondly, it is all kinds of without each analog assistant
The use of auxiliary agent easily produces harmful effect to the final performance of product, causes product air entrapment skewness, and can be in product
In leave small molecule residue, influence Mechanical Properties of Products.
Embodiment
With reference to embodiment, the invention will be further described：
Embodiment：A kind of optical cable tension gasket for packing, the tension gasket for packing passes through thing by the component of following parts by weight
Haircut bubble is obtained：
50 parts of foamed material semi-finished product,
High density polyethylene (HDPE)（First）50 parts,
1 part of nucleation masterbatch；
The foamed material semi-finished product are made up of the component of following parts by weight:
Melt flow rate (MFR) is 0.03 ~ 0.09 g/10min 30 parts of low density polyethylene (LDPE),
Melt flow rate (MFR) is 1.8 ~ 3.2 g/10min high density polyethylene (HDPE)（First）40 parts,
Melt flow rate (MFR) is 5 ~ 9 g/10min high density polyethylene (HDPE)（Second）30 parts,
15 parts of micron-class superfine calcium carbonate；
Above-mentioned foamed material semi-finished product melt flow rate (MFR) is 0.65 ± 0.20g/10min.
The above-mentioned optical cable manufacture method of tension gasket for packing, comprises the following steps：
Step 1: by 30 parts of low density polyethylene (LDPE) that melt index is 0.03 ~ 0.09 g/10min, melt index be 1.8 ~
3.2 g/10min high density polyethylene (HDPE)（First）40 parts, the high density polyethylene (HDPE) that melt index is 5 ~ 9 g/10min（Second）30
Part, 15 parts of calcium carbonate superfine powder are positioned over high-speed mixer and mixing and are formed uniformly mixture；
Step 2: the mixture of step one is sent into double screw extruder, in 180 ~ 230 DEG C of extruder barrel temperature
From low to high Ф 2.5mm strips are extruded under the conditions of multistage heating, 230 DEG C of head temperature；
Step 3: the strip of step 2 is dried by blower fan again after water cooling tank is cooled down, then, length is cut into
3mm, Ф 2.5mm small columns grain are used as foamed material semi-finished product；
Step 4: by 50 parts of foamed material semi-finished product described in step 3, high density polyethylene (HDPE)（First）50 parts and nucleation masterbatch 1
Part, three is well mixed to the particulate material for obtaining the foaming packing gasket by high mixer；
Step 5: the packing gasket granule material heated melting in an extruder, while nitrogen is noted under a certain pressure
Enter wherein, then gas is discharged by decompression, so as to generate the uniform bubble combined closely with internal layer, it is 10 to form frothing percentage
Buried regions in~80% polyethylene foam gasket for packing body；
Step 6: buried regions is after high speed extrusion at a temperature of setting in the polyethylene foam gasket for packing body, its outer layer warp
After PBT resin cladding, the polyethylene foam gasket for packing that buried layer is combined closely with clad is formed.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (2)
1. a kind of optical cable tension gasket for packing, it is characterised in that：The tension gasket for packing is passed through by the component of following parts by weight
Physical blowing is obtained：
50 parts of foamed material semi-finished product,
Melt flow rate (MFR) is 1.8 ~ 3.2 g/10min 50 parts of high density polyethylene (HDPE),
1 part of nucleation masterbatch；
The foamed material semi-finished product are made up of the component of following parts by weight:
Melt flow rate (MFR) is 0.03 ~ 0.09 g/10min 30 parts of low density polyethylene (LDPE),
Melt flow rate (MFR) is 1.8 ~ 3.2 g/10min 40 parts of high density polyethylene (HDPE),
Melt flow rate (MFR) is 5 ~ 9 g/10min 30 parts of high density polyethylene (HDPE),
15 parts of micron-class superfine calcium carbonate.
2. optical cable according to claim 1 tension gasket for packing, it is characterised in that：The foamed material semi-finished product melt flow
Dynamic speed is 0.65 ± 0.20g/10min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344989.8A CN104167257B (en) | 2012-12-13 | 2012-12-13 | Optical cable tension gasket for packing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344989.8A CN104167257B (en) | 2012-12-13 | 2012-12-13 | Optical cable tension gasket for packing |
| CN201210536344.5A CN102981232B (en) | 2012-12-13 | 2012-12-13 | External force resistant multi-waveguide optical cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210536344.5A Division CN102981232B (en) | 2012-12-13 | 2012-12-13 | External force resistant multi-waveguide optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104167257A CN104167257A (en) | 2014-11-26 |
| CN104167257B true CN104167257B (en) | 2017-08-25 |
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ID=51911035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410344989.8A Active CN104167257B (en) | 2012-12-13 | 2012-12-13 | Optical cable tension gasket for packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104167257B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382626A (en) * | 2008-09-09 | 2009-03-11 | 龙泽飞 | Optical cable foaming packing gasket granule material and method for producing same |
| CN201251641Y (en) * | 2008-09-09 | 2009-06-03 | 龙泽飞 | Film enveloped optical fiber cable used foamed filler yarn |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002265708A (en) * | 2001-03-13 | 2002-09-18 | Fujikura Ltd | Flame-retardant resin composition |
-
2012
- 2012-12-13 CN CN201410344989.8A patent/CN104167257B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382626A (en) * | 2008-09-09 | 2009-03-11 | 龙泽飞 | Optical cable foaming packing gasket granule material and method for producing same |
| CN201251641Y (en) * | 2008-09-09 | 2009-06-03 | 龙泽飞 | Film enveloped optical fiber cable used foamed filler yarn |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104167257A (en) | 2014-11-26 |
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Effective date of registration: 20180801 Address after: 215234 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Co-patentee after: Suzhou Hengli Communication Materials Co., Ltd. Patentee after: Jiangsu Hengtong Wire And Cable Technology Co., Ltd. Address before: 215234 88 Hengtong Road, seven Du Town, Wujiang City, Changzhou, Jiangsu Patentee before: Suzhou Hengli Communication Materials Co., Ltd. |