CN102504393B - PE plate for electric heating fusion band and method for processing plate - Google Patents
PE plate for electric heating fusion band and method for processing plate Download PDFInfo
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- CN102504393B CN102504393B CN201110358990.2A CN201110358990A CN102504393B CN 102504393 B CN102504393 B CN 102504393B CN 201110358990 A CN201110358990 A CN 201110358990A CN 102504393 B CN102504393 B CN 102504393B
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Abstract
The invention provides a PE (Polyethylene) plate for an electric heating fusion band. The PE plate is composed of the following components in percentage by weight: 40 to 80 % of HDPE (High-density polyethylene), 15 to 60 % of LLDPE (Linear low density polyethylene), 2 to 25 % of hot melt adhesive, 10 to 20 % of reclaimed material and 0.3 to 1 % of color concentrate. The invention further provides a method for processing the PE plate for the electric heating fusion band. The method comprises the steps: preparing the components, granulating after mixing the components, and extruding the granulated components into the plate. The PE plate provided by the invention is reduced in bending strength to be more suitable for field erection, is improved in melt index to ensure the welding and bonding quality and the sealability of the connection part, and is improved in racking strength to ensure the enough strength during erection.
Description
Technical field
The present invention relates to polyethylene board manufacture field, relate in particular to sheet material and working method for a kind of PE Electric thermal smelting belt.
Background technology
PE Electric thermal smelting belt, is mainly used in the connection of HDPE buried drain pipe road (as PE hollow spiral tube).Electric thermal smelting belt is mainly comprised of PE plate, resistance wire, channelizing line, wire, and wherein the performance of PE plate is one of key factor.At present, the main component of PE plate prescription is HDPE, LDPE and colour batch.PE Electric thermal smelting belt will carry out electric heating melting welding with tubing, should have certain snappiness, so that install, has again higher physicals, to meet the requirements such as the connection of tubing, non-excavation stretching.But PE Electric thermal smelting belt exists some shortcomings at present, or cohesive strength is poor, and tensile strength is low; Too high causing of flexural strength, hardness is difficult for installing.
Summary of the invention
First goal of the invention of the present invention is to provide a kind of PE Electric thermal smelting belt sheet material, has tensile strength high, and flexural strength is moderate, and cohesive strength advantages of higher has solved the problem that prior art exists.
In order to realize above-mentioned object, adopt following technical scheme: a kind of PE Electric thermal smelting belt sheet material, the component that comprises following parts by weight:
HDPE 40-80%；
LLDPE 15-60%；
Hot melt adhesive 2-25%;
Reclaimed materials 10-20%;
Colour batch 0.3-1%.
HDPE is high, the nonpolar thermoplastic resin of a kind of degree of crystallinity, can give the rigidity that sheet material is good.It is high that LLDPE has tensile strength compared with LDPE, and flexural strength is low, the feature that impelling strength is good.Hot melt adhesive is a kind of plastic tackiness agent, can increase the cohesive strength between each component.
In such scheme, described HDPE is 0.1-0.25g/10min in the melt flow rate (MFR) of 190 ℃ of 5kg, and fusing point is 125-130 ℃.Described LLDPE is 4-10g/10min in the melt flow rate (MFR) of 190 ℃ of 2.16kg, and fusing point is 110-120 ℃.The PE/PE cohesive strength of described hot melt adhesive is more than or equal to 50N/cm, and fusing point is 105-115 ℃, take EVA as main body.
Second goal of the invention of the present invention is to provide the working method of a kind of PE Electric thermal smelting belt with sheet material, to realize the process for processing of the sheet material that first goal of the invention provides.
In order to realize above-mentioned object, adopt following technical scheme: the working method of sheet material for a kind of PE Electric thermal smelting belt, comprises the following steps:
S1 presses formulated by each component;
S2 mixes rear granulation with mixing machine;
S3 forcing machine extrusion board.
In such scheme, the processing parameter of described step S3 is: feeding section temperature 140-160 ℃, melt zone temperature 170-185 ℃, homogenizing zone temperature 185-195 ℃, die head temperature 185-200 ℃, roller temperature 20-40 ℃.
Compared with prior art, the flexural strength of sheet material of the present invention declines, and is more suitable for installing in building site; Melting index improves, and has both guaranteed to weld bonding quality, guarantees again junction sealing property; Stripping strength improves, and guaranteeing has enough intensity in installation process.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
PE Electric thermal smelting belt sheet material provided by the invention, produces by following steps: first each component is prepared by formulation weight part; Then with mixing machine, mix rear granulation; Finally use single screw extrusion machine extrusion board.Procession parameters is: feeding section temperature 140-160 ℃, melt zone temperature 170-185 ℃, homogenizing zone temperature 185-195 ℃, die head temperature 185-200 ℃, roller temperature 20-40 ℃.
Concrete component and the weight part of implementing is as shown in table 1,
| Embodiment mono- | Embodiment bis- | Embodiment tri- | Embodiment tetra- | |
| HDPE | 100 | 100 | 100 | 100 |
| LDPE | 25 | |||
| LLDPE | 30 | 40 | 50 | |
| Hot melt adhesive | 0 | 5 | 10 | 10 |
| Reclaimed materials | 0 | 25 | 25 | 25 |
| Colour batch | 1 | 1 | 1.25 | 1.25 |
Table 1
Embodiment mono-is existing sheet material formula, adopts LDPE, without adding hot melt adhesive and reclaimed materials.It is 0.2g/10min that embodiment bis-, three, four adopts molten finger, and fusing point is the HDPE of 129 degrees Celsius; Molten finger is 8g/10min, and fusing point is the LLDPE of 118 degrees Celsius; PE/PE cohesive strength is 62N/cm, and fusing point is the hot melt adhesive that EVA is main body of take of 107 degrees Celsius; And reclaimed materials and black masterbatch.
The formula materials of each embodiment is made into sheet material according to technique, and plate property is as shown in table 2,
| Performance | Embodiment mono- | Embodiment bis- | Embodiment tri- | Embodiment tetra- |
| Tensile strength (Mpa) | 17.25 | 16.85 | 16.43 | 16.26 |
| Elongation (%) | 720 | 819 | 894 | 908 |
| Flexural strength (Mpa) | 30.88 | 24.86 | 20.02 | 17.58 |
| Shock strength (Mpa) | 20.18 | 19.4 | 16.39 | 15.55 |
| Stripping strength (N/CM) | 102 | 116 | 125 | 124 |
| 190 ℃, the melting index of 5.0kg (g/10min) | 0.38 | 1.25 | 1.38 | 1.50 |
Table 2
As can be seen from Table 2, the flexural strength of the tubing of embodiment mono-is high, is not suitable for fitting operation, and melting index is low, and sheet material is asynchronous with tubing melting speed, is not suitable for welding.And the tensile strength of the tubing of embodiment bis-, three, four is high, flexural strength is moderate, and cohesive strength is high, and performance is all better than the tubing of embodiment mono-.
Claims (1)
1. the working method of sheet material for PE Electric thermal smelting belt, is characterized in that the component that described PE Electric thermal smelting belt comprises following parts by weight with sheet material:
HDPE 40-80%；
LLDPE 15-60%；
Hot melt adhesive 2-25%;
Reclaimed materials 10-20%;
Colour batch 0.3-1%;
Making each component content sum is 100%;
Described HDPE is 0.1-0.25g/10min in the melt flow rate (MFR) of 190 ℃ of 5kg, and fusing point is 125-130 ℃;
Described LLDPE is 4-10g/10min in the melt flow rate (MFR) of 190 ℃ of 2.16kg, and fusing point is 110-120 ℃;
The PE/PE cohesive strength of described hot melt adhesive is more than or equal to 50N/cm, and fusing point is 105-115 ℃, take EVA as main body;
Described working method comprises the following steps:
S1 presses formulated by each component;
S2 mixes rear granulation with mixing machine;
S3 forcing machine extrusion board;
The processing parameter of described step S3 is: feeding section temperature 140-160 ℃, melt zone temperature 170-185 ℃, homogenizing zone temperature 185-195 ℃, die head temperature 185-200 ℃, roller temperature 20-40 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110358990.2A CN102504393B (en) | 2011-11-14 | 2011-11-14 | PE plate for electric heating fusion band and method for processing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110358990.2A CN102504393B (en) | 2011-11-14 | 2011-11-14 | PE plate for electric heating fusion band and method for processing plate |
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| Publication Number | Publication Date |
|---|---|
| CN102504393A CN102504393A (en) | 2012-06-20 |
| CN102504393B true CN102504393B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110358990.2A Active CN102504393B (en) | 2011-11-14 | 2011-11-14 | PE plate for electric heating fusion band and method for processing plate |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104788773B (en) * | 2014-01-20 | 2017-04-05 | 唐山长虹塑料制品有限公司 | A kind of tubing production method and tubing |
| CN111578028A (en) * | 2020-05-19 | 2020-08-25 | 华创天元实业发展有限责任公司 | Electric hot melting belt for reinforcing steel plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463158A (en) * | 2008-12-31 | 2009-06-24 | 深圳市长园长通热缩材料有限公司 | Not-stretching thermal shrinkage belt base material for pipeline corrosion protection and preparation thereof |
| CN102040918A (en) * | 2009-10-16 | 2011-05-04 | 泰州现代塑料有限公司 | Super-strong radiant crosslinked polyethylene heat shrinkable adhesive tape and preparation method thereof |
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- 2011-11-14 CN CN201110358990.2A patent/CN102504393B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463158A (en) * | 2008-12-31 | 2009-06-24 | 深圳市长园长通热缩材料有限公司 | Not-stretching thermal shrinkage belt base material for pipeline corrosion protection and preparation thereof |
| CN102040918A (en) * | 2009-10-16 | 2011-05-04 | 泰州现代塑料有限公司 | Super-strong radiant crosslinked polyethylene heat shrinkable adhesive tape and preparation method thereof |
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| CN102504393A (en) | 2012-06-20 |
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