CN101531796B - Outdoors cable graded UL standard PVC insulated material - Google Patents
Outdoors cable graded UL standard PVC insulated material Download PDFInfo
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- CN101531796B CN101531796B CN2009100977082A CN200910097708A CN101531796B CN 101531796 B CN101531796 B CN 101531796B CN 2009100977082 A CN2009100977082 A CN 2009100977082A CN 200910097708 A CN200910097708 A CN 200910097708A CN 101531796 B CN101531796 B CN 101531796B
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Abstract
The invention discloses an outdoors cable graded UL standard PVC insulated material, which is prepared by uniformly mixing 50 weight parts of WS-1300, 26 weight parts of TOTM, 7.5 weight parts of HD2500, 10.1 weight parts of K-800, 1.5 weight parts of SB203 and 0.5 weight part of carbon black, and extruding in a double-screw extruder and granulating. The invention has insulated heat conductivity and heat radiation, good insulated performance, and good stability of in-water electrostatic content and in-water pressure; the insulated material accords with the outdoors cable graded UL758 standard.
Description
Technical field
The present invention relates to the insulating material of outdoors cable, be specifically related to outdoors cable graded UL standard PVC insulated material.
Background technology
Outdoors cable is because the natural environment influence of being exposed to the sun and rain, and therefore every physical and chemical index of the insulating material that uses had relatively high expectations, and is withstand voltage, ageing-resistant, water-fast as low temperature resistant, the anti-daylight of needs, insulation and avoid producing water tree etc. in the water; The insulating material of UL standard is higher to the stability requirement of pressure in the stability of electrostatic capacity in the water of outdoors cable and the water.The composition of raw materials of outdoors cable graded UL standard PVC insulated material comprises polyvinyl chloride resin, softening agent, weighting agent, stablizer and an amount of carbon black etc. at present.Composition of raw materials commonly used comprises: about SH-200PVC resin 50 parts (weight), 1 part of about 30 parts in W-2050 softening agent, about 12.5 parts of CCR-603 weighting agents, about 2.5 parts of YC-200 stablizers and carbon black, but the stability of pressure also is not very desirable in the stability of PVC insulating material electrostatic capacity in water of this prescription and the water, the requirement that does not reach the UL758 standard.
Summary of the invention
Technical problem to be solved by this invention provides a kind of the have thermal conduction of partition and thermal radiation, good insulation preformance, the stability of pressure outdoors cable graded UL standard PVC insulated material preferably all in the stability of electrostatic capacity and the water in water, this insulating material can meet the requirement of UL758 standard.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: outdoors cable graded UL standard PVC insulated material, the composition of raw materials that comprises following weight parts makes behind the twin screw extruder extruding pelletization through uniform mixing: 50 parts of WS-1300,26 parts of TOTM, 7.5 parts of HD2500,10.1 parts of K-800,1.5 parts of SB203,0.5 part of carbon black.
WS-1300 is the polyvinyl chloride resin powder in the above-mentioned prescription, has 1300 the polymerization degree, is provided by the Shanghai chemical industry for making chlorine and alkali; TOTM (triisooctyl trimellitate) is a softening agent, and Zhenjiang is unified into to be provided; HD2500 (water-ground limestone) is a weighting agent, and Hong Meida provides; K-800 (the compound stablizer that contains calcium hydroxide and zinc hydroxide) is the comprehensively modifying thermo-stabilizer, and Shanghai emigrant's hat provides; SB203 (ANTIMONY TRIOXIDE SB 203 99.8 PCT) is an additive flame retardant, and the plasticizing of Yuyao alliance provides.
Described carbon black is SB805, is provided by Kunshan Li Mao company.
The halogenated flame retardant that also comprises 1～4 part of weight part in the composition of raw materials of insulating material, as hydrogenchloride, SB203 can produce synergy with halogenated flame retardant, make the better effects if of insulating material surface secluding air, can suppress the effect of flame, reduce the combustionvelocity of insulating material even burning is stopped.
Compared with prior art, the invention has the advantages that outdoors cable graded UL standard PVC insulated material, the composition of raw materials that comprises following weight parts makes behind the twin screw extruder extruding pelletization through uniform mixing: 50 parts of WS-1300,26 parts of TOTM, 7.5 parts of HD2500,10.1 parts of K-800,1.5 parts of SB203,0.5 part of carbon black; In the above-mentioned raw materials prescription, WS-1300 can make the temperature of processing insulating material surpass 150 ℃, can make the insulating material external diameter when the processing electric wire that makes easy to control again, and the electric wire outward appearance light that processing obtains and smooth seldom plays particle; TOTM makes the insulating material that makes have high-temperature stability preferably, makes the performances such as aging weightlessness, elongation retention and volume resistance of insulating material all more excellent; HD2500 is 2500 purpose super-fine active calcium carbides, good fluidity, work in-process can be filled up the cavity of insulating material, make the insulating material space that makes few, this insulating material has increased the insulativity and the ultimate compression strength of electric wire, and electric wire soaks and the few of obvious variation of electrostatic capacity in water for a long time; K-800 belongs to the environment-friendly type thermo-stabilizer, and calcium hydroxide and zinc hydroxide have the cooperation thermal stabilization effect; SB203 can form the protective membrane of secluding air on the insulating material surface, cuts off thermal conduction and thermal radiation, makes the better heat stability of insulating material, and thermally denature is less, also is difficult for fuel.Therefore the present invention has the thermal conduction of partition and thermal radiation, good insulation preformance, and the stability of pressure advantage preferably all in the stability of electrostatic capacity and the water in water, the present invention is the insulating material that meets outdoors cable level UL758 standard.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment
Outdoors cable graded UL standard PVC insulated material, the raw material uniform mixing by 50 parts of WS-1300,26 parts of TOTM, 7.5 parts of HD2500,10.1 parts of K-800,1.5 parts of SB203,0.5 part of SB805 makes behind the twin screw extruder extruding pelletization.Also can add the halogenated flame retardant of the hydrogenchloride etc. of 1～4 part of weight part in the present embodiment.
Mechanics performance determining to insulating material of the present invention is tested the result who obtains as table 1, and this insulating material is ageing-resistant as can be seen from Table 1, and is low temperature resistant, and thermally denature is little, and tensile strength is good, advantages such as good-extensibility.
Table 1 is an insulating material mechanical property table of the present invention:
Electric and the inflammable attribute determination test of insulating material of the present invention is obtained result as table 2, and the volume resistance performance of this insulating material is more excellent as can be seen from Table 2, good insulation preformance, and the fire-protection rating height has the thermal conduction of partition and thermal-radiating advantage.
Table 2 is the electric and flammability table of insulating material of the present invention:
Comparative Examples
Raw material uniform mixing by 50 parts of SH-200,30 parts of W-2050,12.5 parts of CCR-603,2.5 parts of YC-200,1 part of carbon black makes UL standard PVC insulating material behind the twin screw extruder extruding pelletization.
To the insulating material of the insulating material of embodiment and Comparative Examples after being prepared into outdoor electric wire, carry out the physicochemical property determination test with 758 standards, obtain result as table 3, all be better than Comparative Examples aspect pressure stable in the stability of insulating material of the present invention as can be seen from Table 3 electrostatic capacity in water and the water, meet the requirement of UL758 standard.
The physicochemical property synopsis of the electric wire UL758 standard that two kinds of insulating material of table 3 are made
Claims (3)
1. outdoors cable graded UL standard PVC insulated material, the composition of raw materials that it is characterized in that comprising following weight parts makes behind the twin screw extruder extruding pelletization through uniform mixing:
7.5 parts of 26 parts of HD2500 of 50 parts of TOTM of WS-1300
0.5 part of 1.5 parts of carbon black of 10.1 parts of SB203 of K-800.
2. outdoors cable graded UL standard PVC insulated material as claimed in claim 1 is characterized in that described carbon black is SB805.
3. outdoors cable graded UL standard PVC insulated material as claimed in claim 1 is characterized in that also comprising the halogenated flame retardant of 1～4 part of weight part in composition of raw materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100977082A CN101531796B (en) | 2009-04-14 | 2009-04-14 | Outdoors cable graded UL standard PVC insulated material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100977082A CN101531796B (en) | 2009-04-14 | 2009-04-14 | Outdoors cable graded UL standard PVC insulated material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101531796A CN101531796A (en) | 2009-09-16 |
| CN101531796B true CN101531796B (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100977082A Expired - Fee Related CN101531796B (en) | 2009-04-14 | 2009-04-14 | Outdoors cable graded UL standard PVC insulated material |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159174A (en) * | 2007-09-03 | 2008-04-09 | 上海斯瑞聚合体科技有限公司 | Explosion prevention PVC sheath material for mine cable and preparation method thereof |
| CN101397389A (en) * | 2008-10-16 | 2009-04-01 | 韩燕� | Method for manufacturing PVC flame-retardant and screening cable pipes |
-
2009
- 2009-04-14 CN CN2009100977082A patent/CN101531796B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159174A (en) * | 2007-09-03 | 2008-04-09 | 上海斯瑞聚合体科技有限公司 | Explosion prevention PVC sheath material for mine cable and preparation method thereof |
| CN101397389A (en) * | 2008-10-16 | 2009-04-01 | 韩燕� | Method for manufacturing PVC flame-retardant and screening cable pipes |
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| Publication number | Publication date |
|---|---|
| CN101531796A (en) | 2009-09-16 |
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