Wear-resistant and weather-resistant new energy charging pile cable sheath material and preparation method thereof

Abstract

The invention relates to the technical field of new energy automobile charging equipment accessory manufacturing, and particularly discloses a wear-resistant and weather-resistant new energy charging pile cable sheath material and a preparation method thereof. The wear-resistant and weather-resistant new energy charging pile cable sheath material comprises the following components in parts by mass: 100 parts of PVC resin; 4.8 to 5.4 parts of a heat stabilizer; 25 to 30 parts of modified calcium titanate whisker; 4.3 to 5.1 parts of compound oil; 1.6 to 2.4 parts of a processing aid; the compound oil is formed by compounding safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil; the modified calcium titanate whiskers are obtained by modifying calcium titanate whiskers with a modification liquid; the modifying liquid is formed by compounding heptadecafluorodecyl trimethoxy silane, octadecyl dimethyl chlorosilane, 2-ethylhexyl acrylate and ethyl alcohol. The wear-resistant and weather-resistant cable sheath material has the advantage that the wear-resistant and weather-resistant performance of the cable sheath material is further improved.

Description

Technical Field

[0001] The present invention relates to the field of manufacturing accessories for new energy vehicle charging equipment, and in particular to a wear-resistant and weather-resistant new energy charging pile cable sheath material and a preparation method thereof. Background Art

[0002] With the development of the new energy vehicle industry, the demand for supporting facilities for charging piles is growing. Charging pile cables are exposed to the outside for a long time, and are frequently subjected to friction, wear and the influence of natural weather. Existing cable sheath materials generally have problems such as poor wear resistance and easy aging. Especially in an environment with strong ultraviolet radiation and large temperature difference, cracks are prone to appear on the cable surface, resulting in damage to the internal circuits and increased safety hazards. Therefore, there is still room for improvement. Summary of the invention

[0003] In order to further improve the wear and weather resistance of cable sheath materials, the present application provides a wear and weather resistant new energy charging pile cable sheath material and a preparation method thereof.

[0004] In the first aspect, the present application provides a wear-resistant and weather-resistant new energy charging pile cable sheath material, which adopts the following technical solution: A wear-resistant and weather-resistant new energy charging pile cable sheath material, comprising the following components in parts by mass: 100 parts of PVC resin; Heat stabilizer 4.8-5.4 parts; 25-30 parts of modified calcium titanate whiskers; Compound oil 4.3-5.1 parts; 1.6-2.4 parts of processing aids; The composite oil is a compound of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil; The modified calcium titanate whisker is obtained by modifying the calcium titanate whisker with a modifying liquid; The modified liquid is a compound of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol.

[0005] By adopting the above technical scheme, by adding modified calcium titanate whiskers modified by a modifying liquid compounded with heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane and isooctyl acrylate, the wear resistance of the cable sheath material is significantly improved, so that the cable sheath made of the cable sheath material can well protect the cable and is not easy to wear.

[0006] By adding the composite oil made of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil, the wear resistance of the cable sheath material can be further improved, and the weather resistance of the cable sheath material can be significantly improved, so that the cable sheath made of the cable sheath material can also have significant wear resistance and weather resistance, which can well meet the needs of new energy charging pile cables.

[0007] Preferably, in the composite oil, the mass ratio of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil is 1.2-1.4:0.9-1.1:0.7-0.9:1.5-1.7.

[0008] By adopting the above technical scheme and specifically selecting the mass ratio of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil, the composite oil can improve the wear resistance and weather resistance of the cable sheath material.

[0009] Preferably, in the modified liquid, the mass ratio of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol is 5-7:9-11:16-18:100.

[0010] By adopting the above technical scheme and specifically selecting the mass ratio of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol, the modification effect of the modification liquid on calcium titanate whiskers is better, and the effect of the modified calcium titanate whiskers on improving the wear resistance of the cable sheath material is more significant.

[0011] Preferably, the modification method of the modified calcium titanate whisker is as follows: Step 1), mixing heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol to obtain a modified solution; Step 2), placing calcium titanate whiskers into a modification solution, keeping the temperature at 60-70°C, and soaking for modification for 8-10 hours; Step 3), filtering out the whiskers, and drying to obtain modified calcium titanate whiskers.

[0012] By adopting the above technical scheme, the modified solution can fully modify the calcium titanate whiskers by immersing the modified material at 60-70°C for 8-10 hours, so that the modified calcium titanate whiskers can improve the wear resistance of the cable sheath material.

[0013] Preferably, the heat stabilizer is a compound of methyltin mercaptan, lead stearate and dibutyltin dilaurate.

[0014] By adopting the above technical scheme and specifically selecting methyltin mercaptan, lead stearate and dibutyltin dilaurate, the PVC resin is not easily degraded during the thermal processing, and the obtained cable sheath material has stable performance and better quality.

[0015] Preferably, the mass ratio of the methyl tin mercaptan, lead stearate and dibutyl tin dilaurate is 1.2-1.4:2.1-2.3:1.5-1.7.

[0016] By adopting the above technical scheme and specifically selecting the mass ratio of methyltin mercaptan, lead stearate and dibutyltin dilaurate, the effect of improving the thermal stability of PVC resin is better.

[0017] Preferably, the processing aid is a compound of paraffin and stearic acid.

[0018] By adopting the above technical solution and adding paraffin wax and stearic acid, the processing difficulty of the cable sheath material is reduced and the production quality is more stable.

[0019] Preferably, the mass ratio of the paraffin wax to stearic acid is 0.8-1.2:0.8-1.2.

[0020] By adopting the above technical solution and specifically selecting the mass ratio of paraffin wax and stearic acid, the effect of reducing the difficulty of the cable sheath material processing technology is better.

[0021] In the second aspect, the present application provides a method for preparing a wear-resistant and weather-resistant new energy charging pile cable sheath material, which adopts the following technical solution: A method for preparing the above-mentioned wear-resistant and weather-resistant new energy charging pile cable sheath material comprises the following steps: Step 01), PVC resin, heat stabilizer, modified calcium titanate whisker, composite oil, and processing aid are uniformly mixed to obtain a premix; Step 02), the premix is ​​extruded and granulated to obtain a wear-resistant and weather-resistant new energy charging pile cable sheath material.

[0022] By adopting the above technical scheme, the obtained wear-resistant and weather-resistant new energy charging pile cable sheath material has good wear-resistant and weather-resistant properties. After being made into a cable sheath, it can protect the cable for a long time, does not require frequent maintenance, and has high economic value.

[0023] In summary, this application has the following beneficial effects: 1. Since the present application adds modified calcium titanate whiskers modified by a modifying liquid compounded with heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane and isooctyl acrylate, the wear resistance of the cable sheath material is significantly improved, so that the cable sheath made of the cable sheath material can well protect the cable and is not easy to wear. By adding a composite oil compounded with safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil, the wear resistance of the cable sheath material can be further improved, and the weather resistance of the cable sheath material can be significantly improved, so that the cable sheath made of the cable sheath material can have significant wear resistance and weather resistance at the same time, which well meets the requirements of new energy charging pile cables.

[0024] 2. In the present application, it is preferred to specifically select the mass ratio of safflower seed oil, hazelnut oil, evening primrose oil, and pumpkin seed oil so that the composite oil has a better effect on improving the wear resistance and weather resistance of the cable sheath material, and by specifically selecting the mass ratio of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate, and ethanol, the modification effect of the modified liquid on calcium titanate whiskers is better, so that the effect of modified calcium titanate whiskers on improving the wear resistance of the cable sheath material is more significant.

[0025] 3. In the present application, methyl tin mercaptan, lead stearate and dibutyl tin dilaurate are preferably selected so that the PVC resin is not easily degraded during the thermal processing, and the obtained cable sheath material has stable performance and better quality. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with embodiments.

[0027] Example 1 A wear-resistant and weather-resistant new energy charging pile cable sheath material, comprising the following components: PVC resin, heat stabilizer, modified calcium titanate whisker, compound oil, processing aid.

[0028] The PVC resin was purchased from Yinglite, brand: SG-3.

[0029] The heat stabilizer is a compound of methyltin mercaptan, lead stearate and dibutyltin dilaurate.

[0030] Methyltin mercaptan was purchased from Jinan Yunuo Chemical Co., Ltd.

[0031] Lead stearate was purchased from Langfang Qianyao Technology Co., Ltd.

[0032] Dibutyltin dilaurate was purchased from Jinan Jingyu Chemical Co., Ltd.

[0033] The compound oil is a combination of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil.

[0034] Safflower seed oil was purchased from Hubei Dali Chemical Co., Ltd. and physically cold-pressed.

[0035] Hazelnut oil is purchased from the Red Star Natural Medicinal Spice Oil Factory in Jishui County and is physically cold-pressed.

[0036] Evening primrose oil was purchased from Yikan Natural Spice Oil Refinery in Jishui County and physically cold pressed.

[0037] Pumpkin seed oil was purchased from Yikan Natural Spice Oil Refinery in Jishui County and physically cold pressed.

[0038] The processing aid is a compound of paraffin and stearic acid.

[0039] The paraffin was purchased from Hebei Dongming Chemical Technology Co., Ltd., No. 58 crude paraffin.

[0040] Stearic acid was purchased from Langfang Pengcai Fine Chemicals Co., Ltd.

[0041] The modified calcium titanate whisker is obtained by modifying the calcium titanate whisker with a modifying liquid; Calcium titanate whiskers were purchased from Wuhan Huaxiang Kejie Biotechnology Co., Ltd.

[0042] The modified liquid is a compound of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol.

[0043] Heptadecafluorodecyltrimethoxysilane was purchased from Hubei Jinte Biotechnology Co., Ltd.

[0044] Octadecyldimethylchlorosilane was purchased from Hubei Co-Formula Material Technology Co., Ltd.

[0045] Isooctyl acrylate was purchased from Shandong Chuangying Chemical Co., Ltd.

[0046] Ethanol was purchased from Jinan Chenxuan Chemical Co., Ltd. with a content of 95%.

[0047] The modification method of modified calcium titanate whiskers is as follows: Step 1), 5 kg of heptadecafluorodecyltrimethoxysilane, 9 kg of octadecyldimethylchlorosilane, 16 kg of isooctyl acrylate and 100 kg of ethanol were put into a stirring kettle at a speed of 20 r / min, stirred for 10 min, and mixed evenly to obtain a modified liquid.

[0048] Step 2), put 50kg of calcium titanate whiskers into the modified liquid, keep the temperature at 60°C, rotate at 20r / min, stir for 10min, mix evenly, stop stirring, and soak for 8h.

[0049] Step 3), filtering out the whiskers through filter cloth, and drying at 100° C. to obtain modified calcium titanate whiskers.

[0050] The preparation method of the wear-resistant and weather-resistant new energy charging pile cable sheath material comprises the following steps: Step 01), 100kg PVC resin, 1.2kg methyl tin mercaptan, 2.1kg lead stearate, 1.5kg dibutyl tin dilaurate, 25kg modified calcium titanate whisker, 1.2kg safflower seed oil, 0.9kg hazelnut oil, 0.7kg evening primrose oil, 1.5kg pumpkin seed oil, 0.8kg paraffin, 0.8kg stearic acid are put into a stirring tank, the speed is 120r / min, stirring for 15min, mixing evenly, and obtaining a premix.

[0051] Step 02), the premix is ​​put into a twin-screw extruder, extruded and granulated to obtain wear-resistant and weather-resistant new energy charging pile cable sheath material. The processing temperatures of the twin-screw extruder zones I-XI are set to: 110°C, 120°C, 130°C, 140°C, 155°C, 155°C, 155°C, 155°C, 160°C, 160°C, 160°C, and the screw speed is 40r / min.

[0052] Example 2 A wear-resistant and weather-resistant new energy charging pile cable sheath material, comprising the following components: PVC resin, heat stabilizer, modified calcium titanate whisker, compound oil, processing aid.

[0053] The PVC resin was purchased from Yinglite, brand: SG-3.

[0054] The heat stabilizer is a compound of methyltin mercaptan, lead stearate and dibutyltin dilaurate.

[0055] Methyltin mercaptan was purchased from Jinan Yunuo Chemical Co., Ltd.

[0056] Lead stearate was purchased from Langfang Qianyao Technology Co., Ltd.

[0057] Dibutyltin dilaurate was purchased from Jinan Jingyu Chemical Co., Ltd.

[0058] The compound oil is a combination of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil.

[0059] Safflower seed oil was purchased from Hubei Dali Chemical Co., Ltd. and physically cold-pressed.

[0060] Hazelnut oil is purchased from the Red Star Natural Medicinal Spice Oil Factory in Jishui County and is physically cold-pressed.

[0061] Evening primrose oil was purchased from Yikan Natural Spice Oil Refinery in Jishui County and physically cold pressed.

[0062] Pumpkin seed oil was purchased from Yikan Natural Spice Oil Refinery in Jishui County and physically cold pressed.

[0063] The processing aid is a compound of paraffin and stearic acid.

[0064] The paraffin was purchased from Hebei Dongming Chemical Technology Co., Ltd., No. 58 crude paraffin.

[0065] Stearic acid was purchased from Langfang Pengcai Fine Chemicals Co., Ltd.

[0066] The modified calcium titanate whisker is obtained by modifying the calcium titanate whisker with a modifying liquid; Calcium titanate whiskers were purchased from Wuhan Huaxiang Kejie Biotechnology Co., Ltd.

[0067] The modified liquid is a compound of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol.

[0068] Heptadecafluorodecyltrimethoxysilane was purchased from Hubei Jinte Biotechnology Co., Ltd.

[0069] Octadecyldimethylchlorosilane was purchased from Hubei Co-Formula Material Technology Co., Ltd.

[0070] Isooctyl acrylate was purchased from Shandong Chuangying Chemical Co., Ltd.

[0071] Ethanol was purchased from Jinan Chenxuan Chemical Co., Ltd. with a content of 95%.

[0072] The modification method of modified calcium titanate whiskers is as follows: Step 1), 6 kg of heptadecafluorodecyltrimethoxysilane, 10 kg of octadecyldimethylchlorosilane, 17 kg of isooctyl acrylate and 100 kg of ethanol were put into a stirring kettle at a speed of 20 r / min, stirred for 10 min, and mixed evenly to obtain a modified liquid.

[0073] Step 2), put 50kg of calcium titanate whiskers into the modified liquid, keep the temperature at 65°C, rotate at 20r / min, stir for 10min, mix evenly, stop stirring, and soak for 9h.

[0074] Step 3), filtering out the whiskers through filter cloth, and drying at 100° C. to obtain modified calcium titanate whiskers.

[0075] The preparation method of the wear-resistant and weather-resistant new energy charging pile cable sheath material comprises the following steps: Step 01), 100kg PVC resin, 1.3kg methyl tin mercaptan, 2.2kg lead stearate, 1.6kg dibutyl tin dilaurate, 27.5kg modified calcium titanate whisker, 1.3kg safflower seed oil, 1kg hazelnut oil, 0.8kg evening primrose oil, 1.6kg pumpkin seed oil, 1kg paraffin, 1kg stearic acid are put into a stirring tank, the speed is 120r / min, stirring for 15min, mixing evenly, and obtaining a premix.

[0076] Step 02), the premix is ​​put into a twin-screw extruder, extruded and granulated to obtain wear-resistant and weather-resistant new energy charging pile cable sheath material. The processing temperatures of the twin-screw extruder zones I-XI are set to: 110°C, 120°C, 130°C, 140°C, 155°C, 155°C, 155°C, 155°C, 160°C, 160°C, 160°C, and the screw speed is 40r / min.

[0077] Example 3 A wear-resistant and weather-resistant new energy charging pile cable sheath material, comprising the following components: PVC resin, heat stabilizer, modified calcium titanate whisker, compound oil, processing aid.

[0078] The PVC resin was purchased from Yinglite, brand: SG-3.

[0079] The heat stabilizer is a compound of methyltin mercaptan, lead stearate and dibutyltin dilaurate.

[0080] Methyltin mercaptan was purchased from Jinan Yunuo Chemical Co., Ltd.

[0081] Lead stearate was purchased from Langfang Qianyao Technology Co., Ltd.

[0082] Dibutyltin dilaurate was purchased from Jinan Jingyu Chemical Co., Ltd.

[0083] The compound oil is a combination of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil.

[0084] Safflower seed oil was purchased from Hubei Dali Chemical Co., Ltd. and physically cold-pressed.

[0085] Hazelnut oil is purchased from the Red Star Natural Medicinal Spice Oil Factory in Jishui County and is physically cold-pressed.

[0086] Evening primrose oil was purchased from Yikan Natural Spice Oil Refinery in Jishui County and physically cold pressed.

[0087] Pumpkin seed oil was purchased from Yikan Natural Spice Oil Refinery in Jishui County and physically cold pressed.

[0088] The processing aid is a compound of paraffin and stearic acid.

[0089] The paraffin was purchased from Hebei Dongming Chemical Technology Co., Ltd., No. 58 crude paraffin.

[0090] Stearic acid was purchased from Langfang Pengcai Fine Chemicals Co., Ltd.

[0091] The modified calcium titanate whisker is obtained by modifying the calcium titanate whisker with a modifying liquid; Calcium titanate whiskers were purchased from Wuhan Huaxiang Kejie Biotechnology Co., Ltd.

[0092] The modified liquid is a compound of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol.

[0093] Heptadecafluorodecyltrimethoxysilane was purchased from Hubei Jinte Biotechnology Co., Ltd.

[0094] Octadecyldimethylchlorosilane was purchased from Hubei Co-Formula Material Technology Co., Ltd.

[0095] Isooctyl acrylate was purchased from Shandong Chuangying Chemical Co., Ltd.

[0096] Ethanol was purchased from Jinan Chenxuan Chemical Co., Ltd. with a content of 95%.

[0097] The modification method of modified calcium titanate whiskers is as follows: Step 1), put 7kg of heptadecafluorodecyltrimethoxysilane, 11kg of octadecyldimethylchlorosilane, 18kg of isooctyl acrylate and 100kg of ethanol into a stirring kettle, rotate at 20r / min, stir for 10min, mix evenly, and obtain a modified liquid.

[0098] Step 2), put 50kg of calcium titanate whiskers into the modified liquid, keep the temperature at 70°C, rotate at 20r / min, stir for 10min, mix evenly, stop stirring, and soak for 10h.

[0099] Step 3), filtering out the whiskers through filter cloth, and drying at 100° C. to obtain modified calcium titanate whiskers.

[0100] The preparation method of the wear-resistant and weather-resistant new energy charging pile cable sheath material comprises the following steps: Step 01), 100kg PVC resin, 1.4kg methyl tin mercaptan, 2.3kg lead stearate, 1.7kg dibutyl tin dilaurate, 30kg modified calcium titanate whisker, 1.4kg safflower seed oil, 1.1kg hazelnut oil, 0.9kg evening primrose oil, 1.7kg pumpkin seed oil, 1.2kg paraffin, 1.2kg stearic acid are put into a stirring tank, the speed is 120r / min, stirring for 15min, mixing evenly, and obtaining a premix.

[0101] Step 02), the premix is ​​put into a twin-screw extruder, extruded and granulated to obtain wear-resistant and weather-resistant new energy charging pile cable sheath material. The processing temperatures of the twin-screw extruder zones I-XI are set to: 110°C, 120°C, 130°C, 140°C, 155°C, 155°C, 155°C, 155°C, 160°C, 160°C, 160°C, and the screw speed is 40r / min.

[0102] Comparative Example 1 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the compound oil, walnut oil is used to replace safflower oil in equal amounts.

[0103] Walnut oil was purchased from Hebei Morningstar Biotechnology Co., Ltd. and physically cold-pressed.

[0104] Comparative Example 2 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the compound oil, linseed oil is used to replace hazelnut oil in equal amounts.

[0105] Linseed oil was purchased from Jiangxi Xinsen Natural Vegetable Oil Co., Ltd.

[0106] Comparative Example 3 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the compound oil, canola oil is used to replace evening primrose oil in equal amounts.

[0107] Rapeseed oil was purchased from Jianmin Natural Spice Oil Factory in Jishui County.

[0108] Comparative Example 4 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the compound oil, pumpkin seed oil was replaced with an equal amount of black cumin seed oil.

[0109] Black cumin seed oil was purchased from Jiangxi Wanlv Natural Flavor Co., Ltd.

[0110] Comparative Example 5 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the composite oil, walnut oil is used to replace safflower seed oil in an equal amount, flaxseed oil is used to replace hazelnut oil in an equal amount, canola oil is used to replace evening primrose oil in an equal amount, and black cumin seed oil is used to replace pumpkin seed oil in an equal amount.

[0111] Walnut oil was purchased from Hebei Morningstar Biotechnology Co., Ltd. and physically cold-pressed.

[0112] Linseed oil was purchased from Jiangxi Xinsen Natural Vegetable Oil Co., Ltd.

[0113] Rapeseed oil was purchased from Jianmin Natural Spice Oil Factory in Jishui County.

[0114] Black cumin seed oil was purchased from Jiangxi Wanlv Natural Flavor Co., Ltd.

[0115] Comparative Example 6 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the modified solution, aminopropyltrimethoxysilane was used to replace heptadecafluorodecyltrimethoxysilane in equal amounts.

[0116] Aminopropyltrimethoxysilane was purchased from Foshan Guiteng New Material Technology Co., Ltd.

[0117] Comparative Example 7 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the modified solution, cyclohexyl methacrylate was used to replace octadecyldimethylchlorosilane in equal amounts.

[0118] Cyclohexyl methacrylate was purchased from Shandong Haochen New Material Technology Co., Ltd.

[0119] Comparative Example 8 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the modified liquid, tert-butylaminoethyl methacrylate was used to replace isooctyl acrylate in an equal amount.

[0120] Tert-butylaminoethyl methacrylate was purchased from Hubei Jiahui Xingcheng Biotechnology Co., Ltd.

[0121] Comparative Example 9 A wear-resistant and weather-resistant new energy charging pile cable sheath material, compared with Example 2, the only difference is: In the modified liquid, aminopropyltrimethoxysilane was used to replace heptadecafluorodecyltrimethoxysilane in equal amounts, cyclohexyl methacrylate was used to replace octadecyldimethylchlorosilane in equal amounts, and tert-butylaminoethyl methacrylate was used to replace isooctyl acrylate in equal amounts.

[0122] Aminopropyltrimethoxysilane was purchased from Foshan Guiteng New Material Technology Co., Ltd.

[0123] Cyclohexyl methacrylate was purchased from Shandong Haochen New Material Technology Co., Ltd.

[0124] Tert-butylaminoethyl methacrylate was purchased from Hubei Jiahui Xingcheng Biotechnology Co., Ltd.

[0125] Experiment 1 According to GB / T13642-2015 "Dynamic tensile test for ozone cracking resistance of vulcanized rubber or thermoplastic rubber", the ozone aging resistance (ozone concentration 800pphm, elongation 20%, 40°C) of the samples prepared from the wear-resistant and weather-resistant new energy charging pile cable sheath materials of each embodiment and comparative example was tested, and the time required for cracking was tested.

[0126] Experiment 2 According to GB / T1689-2014 "Determination of Wear Resistance of Vulcanized Rubber" (using Akron abrasion tester), the wear index (%) of the samples prepared from the wear-resistant and weather-resistant new energy charging pile cable sheath materials of each embodiment and comparative example is tested. The standard rubber formula adopts S 1 .

[0127] The specific experimental data of Experiment 1-2 are shown in Table 1.

[0128] Table 1 Ozone cracking time (h) Wear index (%) Example 1 47 157 Example 2 49 161 Example 3 51 164 Comparative Example 1 32 151 Comparative Example 2 35 153 Comparative Example 3 33 149 Comparative Example 4 37 154 Comparative Example 5 30 146 Comparative Example 6 47 131 Comparative Example 7 48 135 Comparative Example 8 46 129 Comparative Example 9 48 126 According to the data comparison of each embodiment and comparative example in Table 1, the ozone cracking time of each embodiment is significantly longer than that of comparative examples 1-5, and the wear index of each embodiment is higher than that of comparative examples 1-5. It can be seen that when other vegetable oils are used to replace the safflower seed oil, hazelnut oil, evening primrose oil, and pumpkin seed oil in the embodiments alone or in whole, the effect of improving the weather resistance of polyvinyl chloride will be significantly reduced, and the effect of improving the wear resistance of polyvinyl chloride will be reduced to a certain extent. It is proved that after adding the composite oil formed by compounding safflower seed oil, hazelnut oil, evening primrose oil, and pumpkin seed oil to polyvinyl chloride, the weather resistance of polyvinyl chloride can be significantly improved, and the wear resistance of polyvinyl chloride can be further improved.

[0129] According to the data comparison of each embodiment and comparative example in Table 1, it can be obtained that the ozone cracking time of each embodiment is equivalent to that of comparative examples 6-9, and the wear index of each embodiment is significantly higher than that of comparative examples 6-9. It can be seen that when other modifying components are used to replace the heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, and isooctyl acrylate in the embodiment alone or in whole, the modification effect on the calcium titanate whisker is significantly changed. Although it has little effect on the weather resistance of polyvinyl chloride, the modification effect on the wear resistance of polyvinyl chloride will be significantly reduced.

[0130] In summary, the modified calcium titanate whiskers obtained by adding a composite oil composed of safflower seed oil, hazelnut oil, evening primrose oil, and pumpkin seed oil into polyvinyl chloride and modifying it with a modifying liquid composed of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, and isooctyl acrylate can significantly improve the wear resistance and weather resistance of polyvinyl chloride. The wear-resistant and weather-resistant new energy charging pile cable sheath material can be well applied to cable sheaths, can protect cables for a long time, reduce the frequency of cable maintenance, and has high economic value.

[0131] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A wear-resistant and weather-resistant new energy charging pile cable sheath material, characterized by: The composition includes the following components in parts by weight: 100 parts of PVC resin; Heat stabilizer 4.8-5.4 parts; 25-30 parts of modified calcium titanate whiskers; Compound oil 4.3-5.1 parts; 1.6-2.4 parts of processing aids; The composite oil is a compound of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil; The modified calcium titanate whisker is obtained by modifying the calcium titanate whisker with a modifying liquid; The modified liquid is a compound of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol.

2. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 1, characterized in that: In the composite oil, the mass ratio of safflower seed oil, hazelnut oil, evening primrose oil and pumpkin seed oil is 1.2-1.4:0.9-1.1:0.7-0.9:1.5-1.

7.

3. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 2 is characterized in that: In the modified liquid, the mass ratio of heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol is 5-7:9-11:16-18:

100.

4. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 3 is characterized in that: The modification method of the modified calcium titanate whisker is as follows: Step 1), heptadecafluorodecyltrimethoxysilane, octadecyldimethylchlorosilane, isooctyl acrylate and ethanol are uniformly mixed to obtain a modified solution; Step 2), putting calcium titanate whiskers into the modification liquid, keeping the temperature at 60-70°C, and soaking for modification for 8-10 hours; Step 3), filter out the whiskers, dry them, and obtain modified calcium titanate whiskers.

5. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 1, characterized in that: The heat stabilizer is a compound of methyltin mercaptan, lead stearate and dibutyltin dilaurate.

6. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 5, characterized in that: The mass ratio of the methyl tin mercaptan, lead stearate and dibutyl tin dilaurate is 1.2-1.4:2.1-2.3:1.5-1.

7.

7. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 1, characterized in that: The processing aid is a compound of paraffin and stearic acid.

8. The wear-resistant and weather-resistant new energy charging pile cable sheath material according to claim 7, characterized in that: The mass ratio of the paraffin wax to stearic acid is 0.8-1.2:0.8-1.

2.

9. A method for preparing the wear-resistant and weather-resistant new energy charging pile cable sheath material according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 01), PVC resin, heat stabilizer, modified calcium titanate whisker, composite oil and processing aid are uniformly mixed to obtain a premix; Step 02), the premix is ​​extruded and granulated to obtain a wear-resistant and weather-resistant new energy charging pile cable sheath material.