阅读说明：本技术 一种耐老化光伏电缆 (A kind of ageing-resistant photovoltaic cable ) 是由 夏候东 周俊 宰学龙 韩俊宝 徐晓丽 朱元忠 陈安鹏 陶恒莹 于 2019-07-29 设计创作，主要内容包括：本发明公开了一种耐老化光伏电缆,包括电缆芯和依次包覆在电缆芯外侧的绝缘层、耐腐层、耐老化层、耐磨层,电缆芯由多根铝合金芯线绞合而成；其中耐老化层的原料按重量份包括：主料65-120份,蛇纹石20-28份,三盐基硫酸铅2-6份,三氧化二锑1-4份,二茂铁1-2份,二酚基丙烷1-3份,增塑剂3-6份。耐老化层采用如下工艺制备：将主料混合均匀,降温,加入二酚基丙烷、增塑剂继续搅拌,继续加入蛇纹石、三盐基硫酸铅、三氧化二锑、二茂铁搅拌均匀,冷却,挤出包覆在所述耐腐层外侧,冷却定型得到耐老化层。本发明所得耐老化光伏电缆,拉伸强度高,断裂伸长率高,而且耐空气老化,使用寿命长。(The invention discloses a kind of ageing-resistant photovoltaic cables, and insulating layer, corrosion resistant layer, aging-resistant layer, the wearing layer including cable core and being successively coated on the outside of cable core, cable core are twisted by more aluminium alloy core wires；Wherein the raw material of aging-resistant layer includes: 65-120 parts of major ingredient, 20-28 parts of serpentine, 2-6 parts of lead sulfate tribasic, 1-4 parts of antimony oxide, 1-2 parts of ferrocene, 1-3 parts of diphenol propane, 3-6 parts of plasticizer by weight.Aging-resistant layer is prepared using following technique: major ingredient is uniformly mixed, cooling, diphenol propane is added, plasticizer continues to stir, serpentine, lead sulfate tribasic, antimony oxide, ferrocene is continuously added to stir evenly, it is cooling, extrusion is coated on the outside of the corrosion resistant layer, and cooling and shaping obtains aging-resistant layer.The ageing-resistant photovoltaic cable of gained of the invention, tensile strength is high, and elongation at break is high, and resistance to air aging, long service life.)

1. a kind of ageing-resistant photovoltaic cable, which is characterized in that including cable core and be successively coated on insulating layer on the outside of cable core, Corrosion resistant layer, aging-resistant layer, wearing layer, cable core are twisted by more aluminium alloy core wires；

Wherein the raw material of aging-resistant layer includes: 65-120 parts of major ingredient by weight, and 20-28 parts of serpentine, lead sulfate tribasic 2-6 Part, 1-4 parts of antimony oxide, 1-2 parts of ferrocene, 1-3 parts of diphenol propane, 3-6 parts of plasticizer.

2. ageing-resistant photovoltaic cable according to claim 1, which is characterized in that major ingredient includes: Corvic PVC- SG2, nitrile rubber NBR3305, adipic acid propanediol polyester.

3. ageing-resistant photovoltaic cable according to claim 2, which is characterized in that Corvic PVC-SG2, nitrile rubber NBR3305, adipic acid propanediol polyester mass ratio be 40-80:15-23:10-18.

4. ageing-resistant photovoltaic cable according to claim 1, which is characterized in that plasticizer includes: barium stearate, chlorination stone Wax -52, epoxidized soybean oil.

5. ageing-resistant photovoltaic cable according to claim 4, which is characterized in that barium stearate, chlorinated paraffin -52, epoxy are big The mass ratio of soya-bean oil is 0.4-1:1-2:1-3.

6. ageing-resistant photovoltaic cable according to claim 1, which is characterized in that aging-resistant layer is prepared using following technique: will Major ingredient is uniformly mixed, cooling, and diphenol propane, plasticizer is added and continues to stir, continuously add serpentine, lead sulfate tribasic, Antimony oxide, ferrocene stir evenly, cooling, and extrusion is coated on the outside of the corrosion resistant layer, and cooling and shaping obtains aging-resistant layer.

7. ageing-resistant photovoltaic cable according to claim 6, which is characterized in that in the preparation process of aging-resistant layer, major ingredient is mixed Closing temperature is 140-160 DEG C.

8. ageing-resistant photovoltaic cable described according to claim 6 or 7, which is characterized in that in the preparation process of aging-resistant layer, cooling To 80-90 DEG C, diphenol propane is added, plasticizer continues to stir.

9. according to any one of the claim 6-8 ageing-resistant photovoltaic cable, which is characterized in that the preparation process of aging-resistant layer In, serpentine, lead sulfate tribasic, antimony oxide, ferrocene is added and stirs evenly, whipping temp is 120-140 DEG C.

10. according to any one of the claim 6-9 ageing-resistant photovoltaic cable, which is characterized in that the preparation process of aging-resistant layer In, extrusion temperature is 200-230 DEG C.

Technical field

The present invention relates to photovoltaic cable technical field more particularly to a kind of ageing-resistant photovoltaic cables.

Background technique

Currently, photovoltaic cable generallys use aluminium alloy core wire as conductor material, outside coats various function clads, light Luff cable is to comply with market development demand, the development of active response country photovoltaic industry, but photovoltaic cable aluminium alloy core at present The various protective layers in the outside of line are bad for the protecting effect of cable core, and not ageing-resistant, mechanical property can not meet demand, in pole Reliability used in end ring border is lower.

Summary of the invention

Technical problems based on background technology, the invention proposes a kind of ageing-resistant photovoltaic cables, and tensile strength is high, Elongation at break is high, and resistance to air aging, long service life.

A kind of ageing-resistant photovoltaic cable proposed by the present invention, the insulation including cable core and being successively coated on the outside of cable core Layer, corrosion resistant layer, aging-resistant layer, wearing layer, cable core are twisted by more aluminium alloy core wires；

Wherein the raw material of aging-resistant layer includes: 65-120 parts of major ingredient by weight, and 20-28 parts of serpentine, tribasic sulfuric acid 2-6 parts of lead, 1-4 parts of antimony oxide, 1-2 parts of ferrocene, 1-3 parts of diphenol propane, 3-6 parts of plasticizer.

Preferably, major ingredient includes: Corvic PVC-SG2, nitrile rubber NBR3305, adipic acid propanediol polyester.

Preferably, Corvic PVC-SG2, nitrile rubber NBR3305, adipic acid propanediol polyester mass ratio be 40-80:15-23:10-18.

Preferably, plasticizer includes: barium stearate, chlorinated paraffin -52, epoxidized soybean oil.

Preferably, barium stearate, chlorinated paraffin -52, epoxidized soybean oil mass ratio be 0.4-1:1-2:1-3.

Preferably, aging-resistant layer is prepared using following technique: major ingredient being uniformly mixed, is cooled down, diphenol propane is added, increases Modeling agent continues to stir, and continuously adds serpentine, lead sulfate tribasic, antimony oxide, ferrocene and stirs evenly, cooling, squeezes out It is coated on the outside of the corrosion resistant layer, cooling and shaping obtains aging-resistant layer.

Preferably, in the preparation process of aging-resistant layer, major ingredient mixing temperature is 140-160 DEG C.

Preferably, in the preparation process of aging-resistant layer, it is cooled to 80-90 DEG C, diphenol propane is added, plasticizer continues to stir It mixes.

Preferably, in the preparation process of aging-resistant layer, serpentine, lead sulfate tribasic, antimony oxide, ferrocene is added It stirs evenly, whipping temp is 120-140 DEG C.

Preferably, in the preparation process of aging-resistant layer, extrusion temperature is 200-230 DEG C.

In the present invention, by adding aging-resistant layer between corrosion resistant layer, wearing layer, good transition is carried out, can be reduced resistance to Difference between two kinds of rotten layer, wearing layer dissimilarity ergospheres, the decline of caused entire photovoltaic cable performance, aging-resistant layer can be with It is effectively prevent the aging of cable brought by internal-external temperature difference, and the tensile strength and elongation at break of entire cable can be improved, it is resistance to Aging layer is compounded with corrosion resistant layer, wearing layer, can not only realize the high flexibility degree under cryogenic conditions, improves anti-wear effect, Er Qienai Corrosive nature is excellent, and synergy is good.

In aging-resistant layer, the basic structural unit of serpentine is oxygen-octahedron and silicon oxygen octahedra, in serpentine shape The particularity that oneself is all had at its crystal lattice, electronegativity, ion-exchange performance in the process, because of its unique layer structure and Performance, serpentine are easier in conjunction with Corvic PVC-SG2, nitrile rubber NBR3305, adipic acid propanediol polyester, phase It directly combines than Corvic PVC-SG2, nitrile rubber NBR3305, adipic acid propanediol polyester with more excellent Tensile strength and elongation at break, and Corvic PVC-SG2, nitrile rubber NBR3305, adipic acid the third two can be prevented The degree of the heated oxygen air aging of alcohol polyester, especially serpentine have apparent inhibition effect to above-mentioned polymer molecular chain activity Fruit, therefore there is higher decomposition temperature by thermal decomposition, show excellent anti-flammability.

Specific embodiment

In the following, technical solution of the present invention is described in detail by specific embodiment.