CN102382380A - Continuous thermal-shrinkable stress control tube material and preparation method thereof - Google Patents
Continuous thermal-shrinkable stress control tube material and preparation method thereof Download PDFInfo
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- CN102382380A CN102382380A CN2011102469759A CN201110246975A CN102382380A CN 102382380 A CN102382380 A CN 102382380A CN 2011102469759 A CN2011102469759 A CN 2011102469759A CN 201110246975 A CN201110246975 A CN 201110246975A CN 102382380 A CN102382380 A CN 102382380A
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- stress control
- pipe material
- type thermal
- shrinkage stress
- control pipe
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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
- B29C48/397—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 a single screw
Abstract
The invention discloses a continuous thermal-shrinkable stress control tube material and a preparation method thereof. The continuous thermal-shrinkable stress control tube material comprises the following components, by weight, 20-40 parts of chlorinated polyethylene, 25-45 parts of a thermoplastic elastomer, 10-20 parts of carbon black, 20-30 parts of barium titanate, 0.5-1.0 part of an antiager, 0.3-0.8 parts of an antioxidant and 0.2-0.8 parts of a lubricant. The continuous thermal-shrinkable stress control tube material of the invention has excellent and stable performances, a key electrical performance index dielectric constant of greater than 15, and a volume resistivity of greater than 10<10>omega.cm; and the preparation method allows the continuous expansion of products to be realized.
Description
Technical field
The present invention relates to a kind of pyrocondensation stress tube and preparation method thereof, relate in particular to a kind of successive type thermal-shrinkage stress control pipe material and preparation method thereof.
Background technology
As integral part very important in the medium and high voltage cable attachment design; The effect of pyrocondensation stress tube is an electric stress of evacuating high-tension cable; Electric field distribution and strength of electric field through to cable accessory inside are carried out control; Promptly take adequate measures, make electric field distribution and strength of electric field be in optimum regime, thereby improve cable accessory reliability of operation and work-ing life.It is that blend such as filler by the various polarity macromolecular material adds high-k form that the material of pyrocondensation stress tube constitutes.Have the discontinuous type pyrocondensation of a lot of manufacturer production stress tube at present both at home and abroad; Successive type pyrocondensation stress control tube is different at expansion process aspect and discontinuous type pyrocondensation stress tube; Aspect such as product surface and stability is also better, but technical difficulty is also higher simultaneously.
The main body material of stress tube is a chlorinatedpolyethylene isopolarity macromolecular material at present, and this type of material has mobile poor, and high temperature is prone to shortcomings such as oxygenolysis.The technical process of stress tube material produce is for making the high density master batch with the material of good fluidities such as high-k filler and Vilaterm through Banbury mixer earlier; According to certain proportioning chlorinatedpolyethylene, high density master batch and other auxiliary agent are made sheet material through mill then, use the tablets press granulation again.Whole production complex process, production efficiency are very low, and performance of products is stable inadequately, and can't expand continuously very greatly owing to the required expansionary force of crosslinked chlorinatedpolyethylene behind the tubing irradiation.
Summary of the invention
In order to solve the deficiency of prior art, one of technical problem to be solved by this invention provides a kind of successive type thermal-shrinkage stress control pipe material.
Two of technical problem to be solved by this invention provides a kind of preparation method of successive type thermal-shrinkage stress control pipe material.
The objective of the invention is to realize like this:
A kind of successive type thermal-shrinkage stress control pipe material is made up of following component: chlorinatedpolyethylene: 20-40 part, thermoplastic elastomer 25-45 part by weight; Carbon black: 10-20 part, barium titanate 20-30 part, anti-aging agent: 0.5-1.0 part; Oxidation inhibitor: 0.3-0.8 part, lubricant 0.2-0.8 part.
Preferably,
The quality percentage composition of chlorine is 30-40% in the said chlorinatedpolyethylene.
Said thermoplastic elastomer is a polyolefins thermoplastic elastomer.Said TPO, English name is: polyolefin thermoplastic elastomer is one type and is two polymeric blends that are separated by what rubber and polyolefin resin were formed.
Said carbon black is a thermals, quality percentage composition >=99% of its carbon.
The specific inductivity of said barium titanate is 5000-6000.
Said anti-aging agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer; English name: Antioxidant RD is a raw material with aniline and acetone, and toluene is dewatering agent; Hydrochloric acid is catalyzer, in temperature 130-140 ℃ of following polycondensation, makes through neutralization washing, air distillation, underpressure distillation, section.Main as rubber antioxidant.
Said oxidation inhibitor is polynary hindered phenol type antioxidant, like four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
Said lubricant is a stearate, like calcium stearate, and Zinic stearas etc.
Adopt industry ordinary method through Banbury mixer blend granulation, extruder for shaping, can make successive type thermal-shrinkage stress control pipe material of the present invention.
Further,
The present invention also provides the preparation method of above-mentioned successive type thermal-shrinkage stress control pipe material, is made up of following step:
Step 1: each component of weighing;
Step 2: load weighted each component through the Banbury mixer melt blending, is processed particle through single screw extrusion machine then;
Step 3: again particle is passed through the forcing machine extruding pipe material.
Wherein,
In the said step 2, through the Banbury mixer melt blending, concrete parameter is: the banburying temperature is 110-130 ℃, and the banburying time is 4-10 minute with each component.
In the said step 2, single screw extrusion machine is divided into six districts, and the working temperature in each district is: the first district 90-100 ℃, and the second district 110-120 ℃, the 3rd district 130-140 ℃, the 4th district 140-150 ℃, the 5th district 140-150 ℃, the 6th district 130-140 ℃.
With respect to prior art, beneficial effect of the present invention is embodied as:
1, technology of the present invention is simple, excellent product performance and stable, and crucial electrical performance indexes specific inductivity is greater than 15, and volume specific resistance is greater than 10
10Ω .cm.Further pass through to regulate the proportioning of barium titanate high-k filler, thereby realize that product has qualified specific inductivity and volume specific resistance and other performance.
2, the present invention has very high production efficiency, improves 200% at least with comparing originally.
3, the present invention can realize the continuous expansion of product.Through selecting other flexible macromolecule polymkeric substance to replace or partly replacing chlorinatedpolyethylene; Require this flexible polymer to have the good mechanical performance; Flowability and irradiation spreading performance; Have good consistency with chlorinatedpolyethylene, thus realize that all raw materials can directly greatly be enhanced productivity through the Banbury mixer granulation and tubing irradiation after continuous expansion.
Embodiment
Below in conjunction with embodiment the present invention is further described.
Embodiment 1:
Chlorinatedpolyethylene: 20 kilograms, thermoplastic elastomer: 45 kilograms, carbon black: 10 kilograms, barium titanate: 30 kilograms, anti-aging agent: 0.5 kilogram, oxidation inhibitor: 0.8 kilogram, lubricant: 0.2 kilogram.
The quality percentage composition of chlorine is 30% in the said chlorinatedpolyethylene.Said thermoplastic elastomer is a polyolefins thermoplastic elastomer.Said carbon black is a thermals, quality percentage composition >=99% of its carbon.The specific inductivity of said barium titanate is 6000.Said anti-aging agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.Said oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.Said lubricant is a calcium stearate.
Described successive type thermal-shrinkage stress control pipe material preparation method comprises step: the first step, accurate each component of weighing prescription; Second step, with load weighted raw material through the Banbury mixer melt blending then through the single screw extrusion machine granulation; The 3rd step, the particle that will make pass through the forcing machine extruding pipe material.
The raw material banburying process is 110-130 ℃ of following banburying 4-10 minute, and the working temperature of each section of extruding granulator is: the first district 90-100 ℃, and the second district 110-120 ℃; The 3rd district 130-140 ℃; The 4th district 140-150 ℃, the 5th district 140-150 ℃, the 6th district 130-140 ℃.
Embodiment 2:
Chlorinatedpolyethylene: 40 kilograms, thermoplastic elastomer: 25 kilograms, carbon black: 20 kilograms, barium titanate: 20 kilograms, anti-aging agent: 1.0 kilograms, oxidation inhibitor: 0.3 kilogram, lubricant: 0.8 kilogram.
The quality percentage composition of chlorine is 40% in the said chlorinatedpolyethylene.Said thermoplastic elastomer is a polyolefins thermoplastic elastomer.Said carbon black is a thermals, quality percentage composition >=99% of its carbon.The specific inductivity of said barium titanate is 5000.Said anti-aging agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.Said oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.Said lubricant is a Zinic stearas.
Adopt the method for embodiment 1 to prepare successive type thermal-shrinkage stress control pipe material of the present invention.
Embodiment 3:
Chlorinatedpolyethylene: 25 kilograms, thermoplastic elastomer: 33 kilograms of carbon blacks: 15 kilograms of barium titanates: 25 kilograms of anti-aging agent: 0.8 kilogram, oxidation inhibitor: 0.6 kilogram, lubricant: 0.6 kilogram.
The quality percentage composition of chlorine is 35% in the said chlorinatedpolyethylene.Said thermoplastic elastomer is a polyolefins thermoplastic elastomer.Said carbon black is a thermals, quality percentage composition >=99% of its carbon.The specific inductivity of said barium titanate is 6000.Said anti-aging agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.Said oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.Said lubricant is a calcium stearate.
Adopt the method for embodiment 1 to prepare successive type thermal-shrinkage stress control pipe material of the present invention.
Embodiment 4:
Chlorinatedpolyethylene: 25 kilograms, thermoplastic elastomer: 31 kilograms of carbon blacks: 14 kilograms of barium titanates: 28 kilograms of anti-aging agent: 0.8 kilogram, oxidation inhibitor: 0.6 kilogram, lubricant: 0.6 kilogram.
The quality percentage composition of chlorine is 40% in the said chlorinatedpolyethylene.Said thermoplastic elastomer is a polyolefins thermoplastic elastomer.Said carbon black is a thermals, quality percentage composition >=99% of its carbon.The specific inductivity of said barium titanate is 5500.Said anti-aging agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.Said oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.Said lubricant is a Zinic stearas.
Adopt the method for embodiment 1 to prepare successive type thermal-shrinkage stress control pipe material of the present invention.
To the successive type thermal-shrinkage stress control pipe material of embodiment 1-4, to test, concrete data see the following form:
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Specific inductivity | 15.8 | 17.2 | 20.6 | 19.3 |
| Volume specific resistance (Ω .cm) | 6.4×10 12 | 4.1×10 11 | 3.2×10 11 | 2.5×10 10 |
Undoubtedly, the present invention can also have multiple conversion and remodeling, is not limited to the concrete structure of above-mentioned embodiment.In a word, protection scope of the present invention should comprise those conspicuous to those skilled in the art conversion or substitute and remodeling.
Claims (10)
1. a successive type thermal-shrinkage stress control pipe material is characterized in that, is made up of by weight following component: chlorinatedpolyethylene: 20-40 part; Thermoplastic elastomer 25-45 part; Carbon black: 10-20 part, barium titanate 20-30 part, anti-aging agent: 0.5-1.0 part; Oxidation inhibitor: 0.3-0.8 part, lubricant 0.2-0.8 part.
2. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: the quality percentage composition of chlorine is 30-40% in the said chlorinatedpolyethylene.
3. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: said thermoplastic elastomer is a polyolefins thermoplastic elastomer.
4. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: said carbon black is a thermals, quality percentage composition >=99% of its carbon.
5. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: the specific inductivity of said barium titanate is 5000-6000.
6. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: said anti-aging agent is 2,2,4-trimethylammonium-1,2-dihyaroquinoline polymer.
7. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: said oxidation inhibitor is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester.
8. successive type thermal-shrinkage stress control pipe material as claimed in claim 1 is characterized in that: said lubricant is a stearate.
9. like the preparation method of each described successive type thermal-shrinkage stress control pipe material among the claim 1-8, it is characterized in that, form by following step:
Step 1: each component of weighing;
Step 2: load weighted each component through the Banbury mixer melt blending, is processed particle through single screw extrusion machine then;
Step 3: again particle is passed through the forcing machine extruding pipe material.
10. the preparation method of successive type thermal-shrinkage stress control pipe material as claimed in claim 9 is characterized in that:
In the said step 2, through the Banbury mixer melt blending, concrete parameter is: the banburying temperature is 110-130 ℃, and the banburying time is 4-10 minute with each component;
In the said step 2, single screw extrusion machine is divided into six districts, and the working temperature in each district is: the first district 90-100 ℃, and the second district 110-120 ℃, the 3rd district 130-140 ℃, the 4th district 140-150 ℃, the 5th district 140-150 ℃, the 6th district 130-140 ℃.
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| CN201110246975.9A CN102382380B (en) | 2011-08-26 | 2011-08-26 | Continuous thermal-shrinkable stress control tube material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131095A (en) * | 2013-03-13 | 2013-06-05 | 深圳市博赛新材料有限公司 | Environmentally-friendly moistureproof high-dielectric stress control sleeve material and stable high-speed preparation method thereof |
| CN106221048A (en) * | 2016-08-25 | 2016-12-14 | 固力发集团有限公司 | A kind of thermal shrinkage stress of expansion continuously controls tube material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101701081A (en) * | 2009-09-18 | 2010-05-05 | 江苏达胜热缩材料有限公司 | Thermal-shrinkage stress control pipe material |
| CN101935423A (en) * | 2010-10-11 | 2011-01-05 | 河北世纪光明电缆电线有限公司 | Thermoplastic chlorinated polyethylene cable material and preparation method thereof |
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2011
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101701081A (en) * | 2009-09-18 | 2010-05-05 | 江苏达胜热缩材料有限公司 | Thermal-shrinkage stress control pipe material |
| CN101935423A (en) * | 2010-10-11 | 2011-01-05 | 河北世纪光明电缆电线有限公司 | Thermoplastic chlorinated polyethylene cable material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131095A (en) * | 2013-03-13 | 2013-06-05 | 深圳市博赛新材料有限公司 | Environmentally-friendly moistureproof high-dielectric stress control sleeve material and stable high-speed preparation method thereof |
| CN103131095B (en) * | 2013-03-13 | 2015-12-23 | 深圳市博赛新材料有限公司 | Environment protection damp-proof height dielectric stress controls shell material and stable high speed making method thereof |
| CN106221048A (en) * | 2016-08-25 | 2016-12-14 | 固力发集团有限公司 | A kind of thermal shrinkage stress of expansion continuously controls tube material and preparation method thereof |
| CN106221048B (en) * | 2016-08-25 | 2018-09-14 | 固力发集团有限公司 | It is a kind of continuously to expand thermal shrinkage stress control tube material and preparation method thereof |
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| CN102382380B (en) | 2014-04-23 |
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Effective date of registration: 20180326 Address after: Wujiang District of Suzhou city in Jiangsu province 215214 Li Zhen Bei she Community Road No. 1288. Patentee after: Jiangsu Dasheng thermal shrinkable Products Co., Ltd. Address before: 215214 Jiangsu city of Suzhou province Wujiang FenHu Beishe Community Road No. 1288. Patentee before: Jiangsu Dasheng Thermal Thrinkage Material Co., Ltd. |