CN103073819B - Ultra-thin walled semi-rigid polyvinyl chloride cable material and preparing technology thereof - Google Patents
Ultra-thin walled semi-rigid polyvinyl chloride cable material and preparing technology thereof Download PDFInfo
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Abstract
The invention provides an ultra-thin walled semi-rigid polyvinyl chloride cable material, which includes the following components in weight percent: 100 parts of polrvinyl chloride, 10-30 parts of filler, 20-40 parts of plasticizer, 5-10 parts of stabilizer, 3-10 parts of fire retardant, 1-3 parts of lubricant and 1-3 parts of processing agent, wherein the polrvinyl chloride is any two kinds of polrvinyl chloride with the degree of polymerization of 1,300-2,500 and the weight ratio of 1:1. The invention further provides a technology for preparing the ultra-thin walled semi-rigid polyvinyl chloride cable material. The ultra-thin walled semi-rigid polyvinyl chloride cable material is low in cost of raw materials, is environmental-friendly and has excellent ageing resistance of materials and wide application prospects.
Description
Technical field
The invention belongs to field of high polymer material modification, be specifically related to a kind of for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and preparation technology thereof.
Background technology
Along with the develop rapidly that national grid is built, the application of high voltage power cable gets more and more, and the requirement of people to power supply reliability is also more and more higher.For guaranteeing cable security steady running, stop new to go into operation and grounding wire appears in working line, various safety problem appears in concentric cable.But in the application scenario that some frequently move, cable is often frequently bent or is stretched, cause the work-ing life of cable short, cable easily breaks or fractures, and traditional polyvinyl chloride cable usually can not meet the anti-aging demand of electric wire in practice.
Secondly, cable is normally formed by several or several groups of wire strandings, often organize mutually insulated between wire and be twisted into round a center, whole outside is surrounded by the tectum of high-insulation, and with precise treatment, the lightness trend of electronic apparatus series products, the space of laying of these electronic product Internal cable becomes more and more nervous, for adapting to its applied environment, this kind of cable wall very thin (insulation thickness is less than 0.2mm) is easily broken, easily aging under the Working environment than comparatively high temps (105 DEG C).
In addition, the public hazards present situation of countries in the world to electric wire is attached great importance in recent years, the process enforcement overall monitor all formulated laws and regulations electric wire manufacturing processed and scrapped, require that the material that the employing of electric wire manufacturing concern meets environmental protection replaces traditional material, especially especially strict to the security of product, nontoxicity index, to reach the requirement of environmental protection, such as European Union has put into effect WEEE instruction and RoHS instruction, and China has also put into effect " electronics and IT products pollution control management way ".
Summary of the invention
Technical problem to be solved by this invention is the defect overcoming prior art, provides a kind of for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and preparation technology thereof.
A kind of ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it comprises the component of following weight part:
Polyvinyl chloride 100 parts;
Filler 10 ~ 30 parts;
20 ~ 40 parts, softening agent;
Stablizer 5 ~ 10 parts;
Fire retardant 3 ~ 10 parts;
Lubricant 1 ~ 3 part;
Processing aid 1 ~ 3 part;
Described polyvinyl chloride to be the polymerization degree be in the polyvinyl chloride of 1300 ~ 2500 any two kinds, the weight ratio of described any two kinds of polyvinyl chloride is 1:1.
And a kind of preparation technology for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it comprises the steps:
Each component is taken by the above-mentioned formula for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material;
Above-mentioned polyvinyl chloride is mixed with 70% ~ 90% of described softening agent weight, obtains mixture I;
In said mixture I, add aforementioned stable agent, filler, fire retardant, lubricant, other auxiliary agents and the mixing of remaining softening agent, obtain mixtures II;
Added in tablets press by mixtures II and plastify, pelletizing, cooling, obtains above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
The embodiment of the present invention provide for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, adopt any two kinds of polychloroethylene with high polymerization degree mixing of same weight ratio, utilize filler, softening agent, stablizer, fire retardant, lubricant and other auxiliary agents to this polyvinyl chloride (PVC) RESINS mixture modification simultaneously, be significantly increased in the ageing resistance of material.
The preparation technology for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material that the embodiment of the present invention provides is simple, material is easy to get, Be very effective.Stability and the processing characteristics of the secondary ordered pair material of the interpolation due to different additive have larger impact, in the present invention for the preparation technology of ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material according to the different character of various additive and its effect, take the mode that segmentation mixes, make to mix between additive and polyvinyl chloride, thus there is good consistency and stability, not only be conducive to obtaining high performance material, the unstable in some functional additive performance can also be overcome, decrease mixing time, shorten the process-cycle, cut down finished cost.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, comprises the component of following weight part:
Polyvinyl chloride 100 parts;
Filler 10 ~ 30 parts;
20 ~ 40 parts, softening agent;
Stablizer 5 ~ 10 parts;
Fire retardant 3 ~ 10 parts;
Lubricant 1 ~ 3 part;
Processing aid 1 ~ 3 part.
Particularly, above-mentioned polyvinyl chloride (PVC) is high DP PVC.High DP PVC because of its molecular weight ratio common PVC much higher, molecular chain rises appreciably, so have better thermotolerance, winter hardiness, mechanicalness, flexibility and elasticity compared with coventional type PVC, be not easy thermal distortion, can be used for the CABLE MATERIALS of producing various special purpose.But polychloroethylene with high polymerization degree fusing point is high, difficult plasticizing, processing difficulties, contriver, by large quantity research, by adopting the PVC collocation of two kinds of high-polymerization degrees to use, and then adding processing aid, improving product ageing resistance.More specifically, the employing polymerization degree is that any two kinds of collocation in the polyvinyl chloride of 1300 ~ 2500 use, and the weight ratio of any two kinds of polyvinyl chloride is 1:1.Wherein, the polymerization degree of this high DP PVC can be 1300,1700,2500.In a preferred embodiment, above-mentioned PVC is weight ratio is the polymerization degree 1300 of 1:1 and two kinds of PVC mixture of the polymerization degree 2500.In another preferred embodiment, above-mentioned PVC is weight ratio is the polymerization degree 1700 of 1:1 and two kinds of PVC mixture of the polymerization degree 2500.The ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material that this preferred PVC makes the embodiment of the present invention provide obtains excellent ageing resistance.
Above-mentioned filler is at least one in nano-calcium carbonate, calcined kaolin, talcum powder, is preferably nano-calcium carbonate.Further, this preferred nano-calcium carbonate is used as the filler of PVC, has toughened and reinforced effect, can improve flexural strength and bending elastic modulus, heat-drawn wire and the dimensional stability of PVC, also gives PVC stagnant hot.In addition, the good dispersity of calcined kaolin, fine size, good with PVC affinity, the processing characteristics of high DP PVC greatly can be improved in the preparation process of cable; And it has good unreactiveness, do not react with PVC, thus improve the corrosion resistance of cable; Its refractoriness is high, can improve the thermal denaturation temperature of cable; The electrical insulation capability of cable can also be improved.This filler, being 10 ~ 30 parts for the consumption in ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, due to the collaborative impact of multiple additives, causes the consumption of filler very crucial, too much very few impelling strength and the mechanical property that all can affect PVC cable material.
Described softening agent is any one in the mixture of trioctyl trimellitate (TOTM), the mixture of UN-615, TOTM and epoxy soybean oil, UN-615 and epoxy soybean oil, is preferably TOTM.The high boiling ester class of the normally difficult volatilization of softening agent, minority is low melting point solid, and they generally with PVC, chemical reaction do not occur, but softening agent can absorb gamma-ray energy as catalyzer, and the hydrogen be transferred on PVC molecular chain or chlorine, make its more legibility from, thus improve cross-linking efficiency.The working conditions of softening agent has good consistency with resin, and cheap, plasticizing efficiency is high, plasticising speed is fast, good endurance, and environmental stability is good, wholesomeness good (to people, animal and farm crop nontoxic, do not pollute, tasteless), electrical insulating property is good, and viscosity stability is good.Above-mentioned preferred TOTM can weaken the intermolecular reactive force of PVC effectively, thus reduces softening temperature, reduces the viscosity of solution, increases mobility, improves the processing characteristics of PVC and the snappiness of cable.Secondly, during above-mentioned UN-615 is preferably, mountain is unified into the product that company produces, and this UN-615 and PVC consistency is good, and plasticization efficiency is high.In addition, above-mentioned TOTM, UN-615 can respectively with the compound use of epoxy soybean oil, epoxy soybean oil, as extender plasticizer, can be learnt from other's strong points to offset one's weaknesses, and obtains that volatility is little, low temperature resistant, electric property and the splendid plasticiser mixture of resistance to migration; Preferably, the weight ratio of TOTM or UN-615 and epoxy soybean oil is 6 ~ 10:1.In a word, by controlling and design the selection of softening agent, realize having object, targetedly modification to PVC, PVC can be made to have better chemical stability.
Aforementioned stable agent is calcium-zinc composite stabilizing agent.The stabilization of calcium-zinc composite stabilizing agent to polyvinyl chloride has obvious synergy.Its specific performance can obtain different effects by their proportioning of adjustment.One side calcium soap and zinc soap can decompose with PVC the hydrogenchloride discharged and react, inhibit the katalysis of PVC dehydrochlorination, zinc soap can decompose with PVC the chlorallylene generation esterification generated on the other hand, suppress the further dehydrochlorination of PVC, the zinc chloride simultaneously generated reacts with calcium soap and generates zinc soap and stable calcium chloride.In addition, the cold resistance of calcium zinc stabilizer can close to heavy metal stabilizer, and not containing toxic ingredient, price is also well below organic tin stablizer.Preferably, above-mentioned calcium-zinc composite stabilizing agent is the mixture of Zinic stearas and calcium stearate, and further, above-mentioned calcium-zinc composite stabilizing agent also comprises antioxidant and photostabilizer.In described calcium zinc stabilizer, resin acid zinc and calcium stearate weight proportion are about 2:1.
Above-mentioned fire retardant is any one in the mixture of antimonous oxide, magnesium hydroxide and antimonous oxide.PVC, after adding flammable material, causes oxygen index to decline, flammable enhancing.Add oxyhydroxide, decompose release water outlet after being heated, absorb heat, temperature can be made to decline.In addition, antimonous oxide and hcl reaction, generate antimony halides, and the relative density of antimony halides is very large, surrounds around combustionmaterial, cuts off the oxygen in air, reach fire-retardant effect, and also have the effect of Mulberry Extract when gaseous state.Preferably, magnesium hydroxide and antimonous oxide weight ratio are 5:1.
Above-mentioned lubricant is this PE wax of mixture of PE wax (polyethylene wax) and stearic acid butyl ester and the weight ratio of butyl stearate is 1:1.This PE wax is mainly outer lubrication prescription, and Main Function reduces PVC mixture with the frictional force between production unit, is convenient to processing, raising efficiency.This stearic acid butyl ester is mainly interior lubrication prescription, reduces the frictional force between PVC mixture molecule, is convenient to material fully happy and harmonious and reduce heat release.Above-mentioned processing aid is acrylic ester polymer, is preferably PA822.Semi-rigid PVC compares the higher processing temperature of flexible PVC requirement, processing relative difficulty, add acrylic ester polymer processing aid PVC extrude with calendered product in play and improve melt viscosity, promote plasticizing, improve processibility, improve the effects such as product surface glossiness
In addition, also can add staining agent in the PVC material of the present embodiment, its parts by weight are 0.5 ~ 1 part, and staining agent can adopt polyvinyl chloride (PVC) electric wire colour batch, can ensure staining agent dispersiveness in the product and tinting strength.
The embodiment of the present invention provide for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, adopt any two kinds of polychloroethylene with high polymerization degree mixing of same weight ratio, utilize filler, softening agent, stablizer, fire retardant, lubricant and other auxiliary agents to this polyvinyl chloride (PVC) RESINS mixture modification simultaneously, be significantly increased in the ageing resistance of material, be applicable to ultra-thin-wall electric wire (insulation thickness is less than 0.2mm), also impart the performance of material non-toxic environmental protection simultaneously.
The embodiment of the present invention also provides a kind of preparation technology for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, and this preparation technology comprises the steps:
S01: take each component according to the above-mentioned formula for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material;
S02: above-mentioned polyvinyl chloride is mixed with 70% ~ 90% of described softening agent weight, obtains mixture I;
S03: add the mixing of described stablizer, filler, fire retardant, lubricant, other auxiliary agents and remaining softening agent in said mixture I, obtain mixtures II;
S04: melt extruded by mixtures II and carry out plastics processing, pelletizing, cooling, obtains above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
Particularly, in above-mentioned steps S01, all material weighings are accurate, and be accurate to 0.01 kilogram, put into corresponding material bag and carry out sign, preferably, softening agent is divided into two portions, and wherein a part is 70% ~ 90% of softening agent weight, are preferably 80%.
In above-mentioned steps S02, polyvinyl chloride is added in stir mixing machine, adds the softening agent mixing of 70% ~ 90% weight in batches, make softening agent by the full and uniform absorption of PVC, obtain mixture I.
In above-mentioned steps S03, is added aforementioned stable agent, filler, fire retardant, lubricant, other auxiliary agents and the mixing of remaining softening agent in the mixture I that step S02 is obtained, stir, softening agent is fully absorbed by PVC, obtains mixtures II;
In above-mentioned steps S04, the mixtures II that step S03 obtains is discharged to twin screw height mixing extruder, at 165 DEG C 185 DEG C, carries out plastics processing, pelletizing, cooling, obtains above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
The preparation technology for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material that the embodiment of the present invention provides is simple, material is easy to get, Be very effective.Stability and the processing characteristics of the secondary ordered pair material of the interpolation due to different additive have larger impact, in the present invention for the preparation technology of ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material according to the different character of various additive and its effect, take the mode that segmentation mixes, make to mix between additive and polyvinyl chloride, thus there is good consistency and stability, not only be conducive to obtaining high performance material, the unstable in some functional additive performance can also be overcome, decrease mixing time, shorten the process-cycle, cut down finished cost.
Embodiment below by way of concrete formula and preparation method illustrates above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and preparation technology thereof.
Embodiment one:
The present embodiment for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and content thereof be:
Polyvinyl chloride (polymerization degree 1300) 50 parts;
Polyvinyl chloride (polymerization degree 2500) 50 parts;
Nano-calcium carbonate 10 parts;
Trioctyl trimellitate 32 parts;
Calcium-zinc composite stabilizing agent 6 parts;
Fire retardant 4 parts;
Lubricant 2 parts;
Processing aid 2 parts.
Preparation technology's detailed process for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material of the present embodiment is as follows:
S11: take each component according to the above-mentioned formula for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, all material weighings are accurate, be accurate to 0.01 kilogram, put into corresponding material bag and carry out sign, softening agent trioctyl trimellitate is divided into two portions, and wherein a part is 80% of softening agent;
S12: be added to by polyvinyl chloride in stir mixing machine, then the trioctyl trimellitate mixing adding 80% in batches, make trioctyl trimellitate by the full and uniform absorption of PVC, obtain mixture I;
S13: is added the mixing of above-mentioned calcium-zinc composite stabilizing agent, nano-calcium carbonate, fire retardant, lubricant, other auxiliary agents and remaining trioctyl trimellitate in the mixture I that step S12 is obtained, stir, trioctyl trimellitate is fully absorbed by PVC, obtains mixtures II;
S14: the mixtures II that step S13 obtains is discharged to twin screw height mixing extruder, carries out plastics processing, pelletizing at 175 DEG C, cooling, obtains above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
Embodiment two:
The present embodiment for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and content thereof be:
Polyvinyl chloride (polymerization degree 1700) 50 parts;
Polyvinyl chloride (polymerization degree 2500) 50 parts;
Calcined kaolin 10 parts;
UN-615 32 parts;
Calcium-zinc composite stabilizing agent 6 parts;
Fire retardant 4 parts;
Lubricant 2 parts;
Processing aid 3 parts.
Preparation technology's detailed process for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material of the present embodiment is as follows:
S21: take each component according to the above-mentioned formula for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, all material weighings are accurate, are accurate to 0.01 kilogram, put into corresponding material bag and carry out sign, softening agent UN-615 is divided into two portions, and wherein a part is 70% of softening agent;
S22: be added to by polyvinyl chloride in stir mixing machine, then the UN-615 mixing adding 70% in batches, make UN-615 by the full and uniform absorption of PVC, obtain mixture I;
S23: is added above-mentioned calcium-zinc composite stabilizing agent, calcined kaolin, fire retardant, lubricant, other auxiliary agents and remaining UN-615 in the mixture I that step S22 is obtained and mix, stir, UN-615 is fully absorbed by PVC, obtains mixtures II;
S24: the mixtures II that step S23 obtains is discharged to twin screw height mixing extruder, carries out plastics processing, pelletizing at 185 DEG C, cooling, obtains above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
Embodiment three:
The present embodiment for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and content thereof be:
Polyvinyl chloride (polymerization degree 1300) 50 parts;
Polyvinyl chloride (polymerization degree 1700) 50 parts;
Talcum powder 10 parts;
TOTM or UN615 28 parts
Epoxy soybean oil 4 parts;
Calcium-zinc composite stabilizing agent 6 parts;
Fire retardant 4 parts;
Lubricant 2 parts;
Other auxiliary agents 2 parts.
Preparation technology's detailed process for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material of the present embodiment is as follows:
S31: take each component according to the above-mentioned formula for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, all material weighings are accurate, are accurate to 0.01 kilogram, put into corresponding material bag and carry out sign, softening agent epoxy soybean oil is divided into two portions, and wherein a part is 90% of softening agent;
S32: polyvinyl chloride is added in stir mixing machine, then add TOTM or UN615 of 90% and the mixture of epoxy soybean oil in batches, make it, by the full and uniform absorption of PVC, to obtain mixture I;
S33: is added the mixing of above-mentioned calcium-zinc composite stabilizing agent, talcum powder, fire retardant, lubricant, other auxiliary agents and remaining softening agent in the mixture I that step S32 is obtained, stir, make it fully to be absorbed by PVC, obtain mixtures II;
S34: the mixtures II that step S33 obtains is discharged to twin screw height mixing extruder, carries out plastics processing, pelletizing at 170 DEG C, cooling, obtains above-mentioned for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
Comparative example one:
The component of the polyvinyl chloride cable material of this comparative example and content thereof are:
Polyvinyl chloride (polymerization degree 1000) 100 parts;
Nano-calcium carbonate 10 parts;
Trioctyl trimellitate 32 parts;
Calcium-zinc composite stabilizing agent 6 parts;
Fire retardant 4 parts;
Lubricant 2 parts;
Other auxiliary agents 2 parts.
Preparation technology's detailed process of the polyvinyl chloride cable material of this comparative example is as follows:
S41: take each component according to the formula of above-mentioned rigid polyvinyl chloride cable material, all material weighings are accurate, are accurate to 0.01 kilogram, put into corresponding material bag and carry out sign, softening agent trioctyl trimellitate is divided into two portions, and wherein a part is 80% of softening agent;
S42: be added to by polyvinyl chloride in stir mixing machine, then the trioctyl trimellitate mixing adding 80% in batches, make trioctyl trimellitate by the full and uniform absorption of PVC, obtain mixture I;
S43: is added the mixing of above-mentioned calcium-zinc composite stabilizing agent, nano-calcium carbonate, fire retardant, lubricant, other auxiliary agents and remaining trioctyl trimellitate in the mixture I that step S42 is obtained, stir, trioctyl trimellitate is fully absorbed by PVC, obtains mixtures II;
S44: the mixtures II that step S43 obtains is discharged to twin screw height mixing extruder, carries out plastics processing, pelletizing at 165 DEG C, cooling, obtains above-mentioned rigid polyvinyl chloride cable material.
Comparative example two:
The component of the polyvinyl chloride cable material of this comparative example and content thereof are:
Polyvinyl chloride (polymerization degree 1300) 100 parts;
Calcined kaolin 10 parts;
UN-615 32 parts;
Calcium-zinc composite stabilizing agent 6 parts;
Fire retardant 4 parts;
Lubricant 2 parts;
Other auxiliary agents 2 parts.
Preparation technology's detailed process of the polyvinyl chloride cable material of the present embodiment is as follows:
S51: take each component according to the formula of above-mentioned rigid polyvinyl chloride cable material, all material weighings are accurate, and be accurate to 0.01 kilogram, put into corresponding material bag and carry out sign, softening agent UN-615 is divided into two portions, wherein a part is 70% of softening agent;
S52: be added to by polyvinyl chloride in stir mixing machine, then the UN-615 mixing adding 70% in batches, make UN-615 by the full and uniform absorption of PVC, obtain mixture I;
S53: is added above-mentioned calcium-zinc composite stabilizing agent, calcined kaolin, fire retardant, lubricant, other auxiliary agents and remaining UN-615 in the mixture I that step S52 is obtained and mix, stir, UN-615 is fully absorbed by PVC, obtains mixtures II;
S54: the mixtures II that step S53 obtains is discharged to twin screw height mixing extruder, carries out plastics processing, pelletizing at 165 DEG C, cooling, obtains above-mentioned rigid polyvinyl chloride cable material.
Refer to table 1, the performance of the polyvinyl chloride cable material for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and comparative example of its display embodiment of the present invention.Test in table 1 is according to the temperature rating specified in UL758 and UL1581 105 DEG C of polyvinyl chloride cable testing standards, carries out accelerated deterioration and test 168 hours in forced ventilation formula constant temperature (136+/-1 DEG C) climatic chamber that the finished product produced the polyvinyl chloride cable material for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material and comparative example of embodiment specifies in UL standard.
Table 1
Data from table 1, above-described embodiment adopts any two kinds of high DP PVC materials of same weight ratio, all be greater than standard-required in conjunction with anti-tensile residual rate and extension residual rate after the aging of insulation of the rigid polyvinyl chloride cable material of other Additive Production acquisition, and ageing resistance is excellent.And in comparative example, adopt single compared with the PVC material of low polymerization degree, and almost nil with extension residual rate in conjunction with anti-tensile residual rate after the aging of insulation of the rigid polyvinyl chloride cable material of other Additive Production acquisition, can not meet the anti-aging demand of electric wire in practice.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. for a ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, comprise the component of following weight part:
Described polyvinyl chloride to be the polymerization degree be in the polyvinyl chloride of 1300 ~ 2500 any two kinds, the weight ratio of described any two kinds of polyvinyl chloride is 1:1.
2. as claimed in claim 1 for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, described filler is at least one in nano-calcium carbonate, calcined kaolin, talcum powder.
3. as claimed in claim 1 for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, described softening agent be in the mixture of the mixture of trioctyl trimellitate, UN-615, trioctyl trimellitate and epoxy soybean oil, UN-615 and epoxy soybean oil any one.
4. as claimed in claim 1 for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, described stablizer is calcium-zinc composite stabilizing agent.
5. as claimed in claim 1 for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, described fire retardant is any one in the mixture of antimonous oxide, magnesium hydroxide and antimonous oxide.
6. as claimed in claim 1 for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, described lubricant is the mixture of PE wax and stearic acid butyl ester.
7. as claimed in claim 1 for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it is characterized in that, described processing aid is acrylic ester polymer.
8., for a preparation technology for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, it comprises the steps:
Each component is taken by the arbitrary described formula for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material of claim 1 ~ 7;
Described polyvinyl chloride is mixed with 70% ~ 90% of described softening agent weight, obtains mixture I;
In described mixture I, add the mixing of described stablizer, filler, fire retardant, lubricant, other auxiliary agents and remaining softening agent, obtain mixtures II;
Mixtures II is melt extruded and carries out plastics processing, pelletizing, cooling, obtain described for ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material.
9. as claimed in claim 10 for the preparation technology of ultra-thin-wall semi-rigid rigid polyvinyl chloride cable material, described in melt extrude plasticizing temperature be 165 DEG C ~ 185 DEG C.
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| CN113943465A (en) * | 2021-09-16 | 2022-01-18 | 江苏上上电缆集团新材料有限公司 | Environment-friendly 125 ℃ high-wear-resistance long-service-life thin-wall PVC insulating material for automobile wire |
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| CN116694004A (en) * | 2023-07-28 | 2023-09-05 | 扬州实嘉电缆材料有限公司 | Polyvinyl chloride cable sheath material |
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| CN103073819A (en) | 2013-05-01 |
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