CN103012987A - PVC (Polyvinyl Chloride) insulating heat shrinking sleeve and preparation method thereof - Google Patents
PVC (Polyvinyl Chloride) insulating heat shrinking sleeve and preparation method thereof Download PDFInfo
- Publication number
- CN103012987A CN103012987A CN2012103994077A CN201210399407A CN103012987A CN 103012987 A CN103012987 A CN 103012987A CN 2012103994077 A CN2012103994077 A CN 2012103994077A CN 201210399407 A CN201210399407 A CN 201210399407A CN 103012987 A CN103012987 A CN 103012987A
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- CN
- China
- Prior art keywords
- pvc
- district
- heat shrink
- heat shrinking
- shrink sleeve
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Classifications
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- 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
- B29C48/40—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 two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention provides a PVC (Polyvinyl Chloride) insulating heat shrinking sleeve and a preparation method of the PVC insulating heat shrinking sleeve. The PVC insulating heat shrinking sleeve comprises the components in parts by weight as follows: 100 parts of PVC, 1-5 parts of assistant, 30-55 parts of plasticizer, 0.3 part of lubricant, 2-15 parts of filler, and 3.5-6 parts of heat stabilizer. The heat shrinking sleeve is uvioresistant, anti-aging, and high temperature and low temperature resistant. The heat shrinking sleeve prepared by the invention in excellent in low-temperature toughness and excellent in oil resistivity, and is suitable for externally wrapping tubular articles such as curtain rods, shower curtain rods, hanging rods, mop rods, broom handles, tool rods, expansion rods, garden tools, and stay bars, and can be used for bus copper bars in a low voltage chamber, connectors, identifications of wire bundles and insulating outer packages. The insulating heat shrinking sleeve is high in efficiency, low in equipment investment and low in comprehensive cost, has insulating, attractive, moistureproof and waterproof effects and the like, and is more convenient and durable than an electric adhesive plaster. The heat shrinking sleeve is relatively excellent in chemical resistance, abrasive resistance and electric insulation, can be widely applied, and replaces current materials ceaselessly.
Description
Technical field
The present invention relates to polymeric material field, relate in particular to a kind of PVC insulation heat shrink sleeve and preparation method thereof.
Background technology
The PVC heat-shrinkable T bush has the characteristics of environmental protection, insulation, is widely used in the insulation outer cladding of the electronic products such as electrolytic condenser, inductance and various battery, lamp decoration, wire harness, busbar, can play protection against the tide, insulation, effect attractive in appearance to product; Heat-shrinkable T bush is easy to use, just begins to shrink at 90 ℃, can be according to user's service condition, optionally with hair dryer, heat gun, constant temperature oven, driven type thermal contraction machine the product that coats sleeve pipe is carried out heat shrink.
And along with the popularizing of humanity concept, and the formation of novel harmonious society is updated insulativity, thermotolerance and the pliability of PVC heat-shrinkable T bush, is very important with the needs that reach the parcel packing.
Elasticity and the water-repellancy of existing PVC heat shrink sleeve material are poor, consider the aspects such as embrittlement or moist rear easily conduction, and it is slightly not enough that prior art just seems.
Summary of the invention
The invention provides a kind of PVC insulation heat shrink sleeve, solve the easy embrittlement in the existing PVC heat shrink sleeve material, scent of is volatile in the processing, the technical problem such as easily decomposes and water-repellancy is poor.
The present invention is by the following technical solutions:
The PVC heat shrink sleeve that insulate is comprised of following raw materials according, take the mass fraction representation as:
PVC 100；
Auxiliary agent 1-5;
Softening agent 30-55;
Lubricant 0.3;
Weighting agent 2-15;
Thermo-stabilizer 3.5-6.
Wherein, described PVC is p=1300, and the K value is 69 polyvinyl chloride.
Described auxiliary agent is PA-551, PA-21, one or more mixtures among the LH-401.
Described softening agent adopts one or more mixtures among DOP or the DBP.
Described thermo-stabilizer adopts one or more mixtures in tribasic lead sulfate or the dibasic lead phosphite.
Described lubricant adopts whiteruss.
Described weighting agent adopts CaCO
3
The preparation method of PVC insulation heat shrink sleeve is:
The first step: take by weighing various raw materials, PVC, auxiliary agent, softening agent, lubricant, weighting agent and thermo-stabilizer according to massfraction ratio mentioned above;
Second step: above-mentioned raw materials is put into the high mixer high speed stir 10min minute (below 100 ℃), various compositions are uniformly dispersed;
The 3rd step: the mixed material of second step is rendered to (L/D=20. screw diameter 65mm, rotating speed 30-35r/min) in the twin screw extruder, extruder temperature is set to: a district: 130-140 ℃, two district 140-155 ℃, three district 155-170 ℃, four district 155-170 ℃, five district 170-175 ℃, six district 170-175 ℃, seven district 170-175 ℃, thick film is extruded in extrusion-blown modling again behind the handpiece body 170-175 ℃ extruding pelletization;
The 4th step: by dividing the three ring air ports of encircling cooling, divide ring to cool off rear folder film roller and put out bubble;
The 5th step: heating and secondary inflation in 100 ℃ of boiling water, carry out cross directional stretch;
The 6th step: in calibration sleeve, again press from both sides the film roller behind the spraying cooling sizing and put out bubble;
The 7th step: utilize at last the winder rolling stand-by.
As a kind of optimal technical scheme of the present invention: the PVC material of selection, uvioresistant, anti-aging, high temperature resistant, low temperature resistant.
As a kind of optimal technical scheme of the present invention: the ACR that processing aid is selected can obviously shorten fusion time, accelerates melting, promotes plasticizing, to extruded product its balancing torque is improved, make its plasticizing evenly, can overcome chill mark, be conducive to material bag roller, reduce bubble, can improve the melt extensibility, overcome the melt fracture phenomenon, easy deep drawing molding, and make the goods thickness even, from the outward appearance of goods, ACR can obviously improve the surface gloss of goods, makes goods seem smooth exquisiteness.
As a kind of optimal technical scheme of the present invention: DBP, the DOP that softening agent is selected has excellent weather resisteant and low-temperature flexibility, and have excellent chemical-resistant resistance, organic solvent and oil-proofness, also have simultaneously good ageing resistance, flame resistivity and electric property, its fillibility is also very outstanding.
As a kind of optimal technical scheme of the present invention: weighting agent selects calcium carbonate can improve processing characteristics, improves the tensile strength of goods, tear strength, and flexibility and wear resistance can play astigmatism and photoextinction, can improve the dimensional stability of plastics.
As a kind of optimal technical scheme of the present invention: thermo-stabilizer is selected tribasic lead sulfate, has the very strong ability in conjunction with hydrogenchloride, long-term thermal stability is good, electric insulating quality is good, performance with white pigment, hiding power is large, weathering resistance still can, plumbous and with having synergy with a small amount of two basic Lead Phosphite, Dibasic (Coated)s or dibasic hard acid.
All raw materials that the present invention uses are know altogether existing, and using method and function are prior art.
A kind of PVC insulation heat shrink sleeve of the present invention adopts above technical scheme compared with prior art, has following technique effect: 1, this heat shrink sleeve energy uvioresistant, and anti-aging, low temperature resistant, high temperature resistant; 2, the heat shrink sleeve excellent in low temperature toughness that uses the present invention to make, and have excellent oil-proofness; 3, be applicable to the outer cladding of the tubular articles such as various curtain rods, Bath-curtain rod, peg, mop rod, broomstick, tool bar, expansion link, garden instrument, strut, and can be used for the sign of bus bar copper row, joint, wire harness in the low-pressure chamber, the outer cladding that insulate, efficient is high, facility investment is few, comprehensive cost is little; 4, have the effects such as insulation, attractive in appearance, moistureproof, waterproof, and convenient more durable than electrical adhesive tape; 5, the relatively excellent anti-chemical of this heat shrink sleeve, excellent wear resistance and electric insulating quality can be used widely, and constantly substitute current material.
Embodiment
Set forth in further detail by the following examples content of the present invention.
Embodiment 1:
The first step: take by weighing various raw materials according to massfraction ratio hereinafter described
The auspicious cable material of PVC lattice company limited 100;
The auxiliary agent A CR chemical industry 1-5 of company limited that wins of heap of stone;
The prosperous big vast industrial chemicals 30-45 of plasticizer DOP;
The poly-precious chemical industry of Plasticizer DBP company limited 10;
The prosperous thick commerce and trade of lubricant whiteruss company limited 0.3;
Weighting agent CaCO3 converges and holds the commerce and trade 2-15 of company limited;
Thermo-stabilizer tribasic lead sulfate Central Plains profit reaches chemical industry station 2.7-3;
The thermo-stabilizer dibasic lead phosphite Ao highland barley 0.8-3 of Industrial Co., Ltd..
Second step: above-mentioned raw materials is put into the high mixer high speed stir 10min minute (below 100 ℃), various compositions are uniformly dispersed;
The 3rd step: the mixed material of second step is rendered to (L/D=20. screw diameter 65mm, rotating speed 30-35r/min) in the twin screw extruder, extruder temperature is set to: a district: 130-140 ℃, two district 140-155 ℃, three district 155-170 ℃, four district 155-170 ℃, five district 170-175 ℃, six district 170-175 ℃, seven district 170-175 ℃, thick film is extruded in extrusion-blown modling again behind the handpiece body 170-175 ℃ extruding pelletization;
The 4th step: by dividing the three ring air ports of encircling cooling, divide ring to cool off rear folder film roller and put out bubble;
The 5th step: heating and secondary inflation in 100 ℃ of boiling water, carry out cross directional stretch;
The 6th step: in calibration sleeve, again press from both sides the film roller behind the spraying cooling sizing and put out bubble;
The 7th step: utilize at last the winder rolling stand-by.
Test performance: after tested, this PVC insulation heat shrink sleeve percent thermal shrinkage 53%, 140 ℃ of expansion temperatures, difficult combustion, softness are not broken under the high temperature.
Above-described embodiment just is used for content of the present invention is set forth, rather than restriction, therefore in the implication suitable with claims of the present invention and any change in the scope, all should think to be included in the scope of claims.
Claims (8)
1. PVC insulation heat shrink sleeve is characterized in that: its composition take the mass fraction representation as:
PVC 100；
Auxiliary agent 1-5;
Softening agent 30-55;
Lubricant 0.3;
Weighting agent 2-15;
Thermo-stabilizer 3.5-6.
2. a kind of PVC insulation heat shrink sleeve according to claim 1, it is characterized in that: described PVC is p=1300, the K value is 69 polyvinyl chloride.
3. a kind of PVC insulation heat shrink sleeve according to claim 1, it is characterized in that: described auxiliary agent is PA-551, PA-21, one or more mixtures among the LH-401.
4. a kind of PVC insulation heat shrink sleeve according to claim 1 is characterized in that: one or more mixtures among described softening agent employing DOP or the DBP.
5. a kind of PVC insulation heat shrink sleeve according to claim 1 is characterized in that: one or more mixtures in described thermo-stabilizer employing tribasic lead sulfate or the dibasic lead phosphite.
6. a kind of PVC insulation heat shrink sleeve according to claim 1 is characterized in that: described lubricant employing whiteruss.
7. a kind of PVC insulation heat shrink sleeve according to claim 1 is characterized in that: described weighting agent employing CaCO
3
8. method for preparing the described PVC of claim 1 insulation heat shrink sleeve is characterized in that step is:
The first step: take by weighing various raw materials, PVC, auxiliary agent, softening agent, lubricant, weighting agent and thermo-stabilizer according to massfraction ratio mentioned above;
Second step: above-mentioned raw materials is put into the high mixer high speed stir 10min minute (below 100 ℃), various compositions are uniformly dispersed;
The 3rd step: the mixed material of second step is rendered to (L/D=20. screw diameter 65mm, rotating speed 30-35r/min) in the twin screw extruder, extruder temperature is set to: a district: 130-140 ℃, two district 140-155 ℃, three district 155-170 ℃, four district 155-170 ℃, five district 170-175 ℃, six district 170-175 ℃, seven district 170-175 ℃, thick film is extruded in extrusion-blown modling again behind the handpiece body 170-175 ℃ extruding pelletization;
The 4th step: by dividing the three ring air ports of encircling cooling, divide ring to cool off rear folder film roller and put out bubble;
The 5th step: heating and secondary inflation in 100 ℃ of boiling water, carry out cross directional stretch;
The 6th step: in calibration sleeve, again press from both sides the film roller behind the spraying cooling sizing and put out bubble;
The 7th step: utilize at last the winder rolling stand-by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103994077A CN103012987A (en) | 2012-10-19 | 2012-10-19 | PVC (Polyvinyl Chloride) insulating heat shrinking sleeve and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103994077A CN103012987A (en) | 2012-10-19 | 2012-10-19 | PVC (Polyvinyl Chloride) insulating heat shrinking sleeve and preparation method thereof |
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| CN103012987A true CN103012987A (en) | 2013-04-03 |
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| CN2012103994077A Pending CN103012987A (en) | 2012-10-19 | 2012-10-19 | PVC (Polyvinyl Chloride) insulating heat shrinking sleeve and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733131A (en) * | 2016-03-21 | 2016-07-06 | 南通鼎尚电子材料有限公司 | Flame-retardant PVC heat-shrinkable sleeve |
| CN106531349A (en) * | 2016-08-09 | 2017-03-22 | 深圳市科奈信科技有限公司 | Earphone wire forming method |
| CN107828147A (en) * | 2017-11-10 | 2018-03-23 | 安徽同利塑胶彩印有限公司 | A kind of preparation method of PVC heat shrink films |
| CN110003585A (en) * | 2019-04-15 | 2019-07-12 | 南通铁人运动用品有限公司 | A kind of low temperature resistant software covering material |
| CN112940413A (en) * | 2021-02-04 | 2021-06-11 | 深圳弘臻新材料科技有限公司 | Flat PVC heat-shrinkable tube and manufacturing method thereof |
| CN114161723A (en) * | 2021-12-03 | 2022-03-11 | 安徽比特汽车科技有限公司 | Oil-resistant and anti-aging wire harness preparation method |
-
2012
- 2012-10-19 CN CN2012103994077A patent/CN103012987A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733131A (en) * | 2016-03-21 | 2016-07-06 | 南通鼎尚电子材料有限公司 | Flame-retardant PVC heat-shrinkable sleeve |
| CN106531349A (en) * | 2016-08-09 | 2017-03-22 | 深圳市科奈信科技有限公司 | Earphone wire forming method |
| CN106531349B (en) * | 2016-08-09 | 2018-06-29 | 深圳市科奈信科技有限公司 | A kind of earphone wire forming method |
| CN107828147A (en) * | 2017-11-10 | 2018-03-23 | 安徽同利塑胶彩印有限公司 | A kind of preparation method of PVC heat shrink films |
| CN110003585A (en) * | 2019-04-15 | 2019-07-12 | 南通铁人运动用品有限公司 | A kind of low temperature resistant software covering material |
| CN112940413A (en) * | 2021-02-04 | 2021-06-11 | 深圳弘臻新材料科技有限公司 | Flat PVC heat-shrinkable tube and manufacturing method thereof |
| CN114161723A (en) * | 2021-12-03 | 2022-03-11 | 安徽比特汽车科技有限公司 | Oil-resistant and anti-aging wire harness preparation method |
| CN114161723B (en) * | 2021-12-03 | 2023-10-10 | 安徽比特汽车科技有限公司 | Preparation method of oil-resistant and anti-aging wire harness |
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Application publication date: 20130403 |