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CN110117400A - High tenacity PVDF thin film material and preparation method thereof, TPT notacoria, TPE notacoria and solar panel - Google Patents

High tenacity PVDF thin film material and preparation method thereof, TPT notacoria, TPE notacoria and solar panel Download PDF

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CN110117400A
CN110117400A CN201910299959.2A CN201910299959A CN110117400A CN 110117400 A CN110117400 A CN 110117400A CN 201910299959 A CN201910299959 A CN 201910299959A CN 110117400 A CN110117400 A CN 110117400A
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朱圣才
谢海燕
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Wuhan Gaozheng New Materials Technology Co Ltd
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Abstract

本发明属于PVDF薄膜技术领域，具体涉及一种高韧性PVDF薄膜材料及其制备方法、TPT背膜、TPE背膜及太阳能电池板。该高韧性PVDF薄膜材料，包括以下重量百分含量的各组分：PVDF 60％～70％，PMMA 5％～20％，钛白粉10％～20％，增韧剂0～10％，抗氧剂0～0.5％，紫外吸收剂0～0.5％，其中，所述增韧剂为玻璃化温度小于或等于T的聚合物，0℃≤T≤25℃。本发明通过玻璃化温度小于或等于常温的增韧剂的增加，使得PVDF薄膜在常温或低温下仍然具有一定的韧性，从而减小了材料在常温下的热胀冷缩程度。该材料因其适应温度的变化韧性，可以适用于昼夜温差大的环境，尤其可以适用于类似沙漠环境昼夜温差较大的情况。The invention belongs to the technical field of PVDF films, and in particular relates to a high-toughness PVDF film material and a preparation method thereof, a TPT back film, a TPE back film and a solar battery panel. The high-toughness PVDF film material includes the following components in weight percentage: 60%-70% of PVDF, 5%-20% of PMMA, 10%-20% of titanium dioxide, 0-10% of toughening agent, antioxidant 0% to 0.5% of UV absorber, 0% to 0.5% of ultraviolet absorber, wherein, the toughening agent is a polymer whose glass transition temperature is less than or equal to T, and 0°C≤T≤25°C. In the present invention, through the increase of the toughening agent whose glass transition temperature is lower than or equal to normal temperature, the PVDF film still has a certain toughness at normal temperature or low temperature, thereby reducing the degree of thermal expansion and contraction of the material at normal temperature. Because of its toughness to adapt to temperature changes, the material can be used in environments with large temperature differences between day and night, especially in environments with large temperature differences between day and night in desert environments.

Description

高韧性PVDF薄膜材料及其制备方法、TPT背膜、TPE背膜及太阳 能电池板High-toughness PVDF film material and preparation method thereof, TPT back film, TPE back film and sun battery board

技术领域technical field

本发明属于PVDF薄膜技术领域，具体涉及一种高韧性PVDF薄膜材料及其制备方法、TPT背膜、TPE背膜及太阳能电池板。The invention belongs to the technical field of PVDF films, and in particular relates to a high-toughness PVDF film material and a preparation method thereof, a TPT back film, a TPE back film and a solar battery panel.

背景技术Background technique

太阳能电池背膜位于太阳能电池板的背面，作为直接与外界环境大面积接触的光伏封装材料，不但要具有保护功能，还应具备25年之久的可靠的绝缘性能、耐长期老化(湿热、干热、紫外)、水蒸气阻隔等性能。太阳能电池背膜与EVA胶膜、晶硅电池片、玻璃、边框、接线盒组装成晶硅太阳能电池板。背膜按照制作工艺可分为复膜型背板和涂覆型背板。复膜型背板以PVF、PVDF或ETFE等氟膜与PET基膜通过胶黏剂复合制备。该工艺是目前背膜产品的主要生产工艺。市场份额占主。从材料结构看，背膜主要有TPT、TPE和PPE结构等类型，其中又以TPT和TPE结构最常见，两种结构约占90％市场份额。TPT即双面覆膜结构(氟膜+PET+氟膜)，TPE即单面氟膜结构(氟膜+PET+PE)、主要是以PE替代内层氟膜。由公司自主研发生产的GZF-120型PVDF薄膜即用于TPT、TPE结构中的氟膜层。The solar cell back film is located on the back of the solar cell panel. As a photovoltaic packaging material that is directly in contact with the external environment in a large area, it must not only have a protective function, but also have a reliable insulation performance of 25 years, and resistance to long-term aging (humid heat, dryness, etc.) heat, ultraviolet), water vapor barrier and other properties. Solar cell back film, EVA film, crystalline silicon cell, glass, frame and junction box are assembled into a crystalline silicon solar cell panel. According to the production process, the back film can be divided into a laminated back sheet and a coated back sheet. The laminated film backsheet is prepared by compounding fluorine film such as PVF, PVDF or ETFE with PET base film through adhesive. This process is the main production process of back film products at present. Market share dominates. From the perspective of material structure, the back film mainly has TPT, TPE and PPE structures, among which TPT and TPE structures are the most common, and the two structures account for about 90% of the market share. TPT is a double-sided film structure (fluorine film + PET + fluorine film), and TPE is a single-sided fluorine film structure (fluorine film + PET + PE), mainly replacing the inner fluorine film with PE. The GZF-120 PVDF film independently developed and produced by the company is used for the fluorine film layer in the structure of TPT and TPE.

2013-2018全球光伏每年新增总需求量35-55GW，对应太阳能电池背板需求量2.6-4亿平米，平均每年都以20％左右的速度增长。由于光伏组件应用环境复杂化，光伏组件对太阳能电池背膜的要求也越来越高，从而对背膜两边的氟膜的要求也越来越高。太阳能电池组件在沙漠里的组装就是一个例子，在沙漠中的应用将会越来越广泛。但由于沙漠环境的昼夜温差较大，平常山地、平地使用的太阳能光伏背膜便不能很好的满足沙漠太阳能光伏组件的要求。高韧性PVDF薄膜的开发便是市场对公司PVDF薄膜提出的新的要求。From 2013 to 2018, the total annual demand for photovoltaics in the world is 35-55GW, corresponding to the demand for solar cell backplanes of 260-400 million square meters, with an average annual growth rate of about 20%. Due to the complex application environment of photovoltaic modules, photovoltaic modules have higher and higher requirements for the back film of solar cells, so the requirements for the fluorine film on both sides of the back film are also higher and higher. The assembly of solar cell modules in the desert is an example, and the application in the desert will become more and more extensive. However, due to the large temperature difference between day and night in the desert environment, the solar photovoltaic back film used in ordinary mountains and flats cannot well meet the requirements of desert solar photovoltaic modules. The development of high-toughness PVDF film is a new requirement from the market for the company's PVDF film.

热胀冷缩是材料随温度变化的表现，昼夜温差大的环境就要求材料有相应的韧性以适应温度的变化。而刚性材料不能随温度变化而变化，久而久之便容易开裂。马路、桥梁上的切割线便是解决热胀冷缩的一个办法。太阳能光伏背板膜由于不能使用切割线的办法从而得从材料本身角度考虑解决问题。Thermal expansion and contraction are the performance of materials with temperature changes. The environment with large temperature difference between day and night requires materials to have corresponding toughness to adapt to temperature changes. However, rigid materials cannot change with temperature changes, and they are prone to cracking over time. Cutting lines on roads and bridges are a solution to thermal expansion and contraction. Since the solar photovoltaic backplane film cannot use the method of cutting lines, the problem must be solved from the perspective of the material itself.

发明内容Contents of the invention

为解决现有技术的不足，本发明提供了一种高韧性PVDF薄膜材料。本发明所提供的高韧性PVDF薄膜材料具有合适的韧性，具有随温度变化的功能，在昼夜温差大的环境中可以适应温度的变化，从而有效的避免开裂。In order to solve the deficiencies of the prior art, the invention provides a high-toughness PVDF film material. The high-toughness PVDF film material provided by the present invention has suitable toughness, has the function of changing with temperature, and can adapt to temperature changes in an environment with a large temperature difference between day and night, thereby effectively avoiding cracking.

本发明所提供的技术方案如下：The technical scheme provided by the present invention is as follows:

一种高韧性PVDF薄膜材料，包括以下重量百分含量的各组分：PVDF 60％～70％，PMMA 5％～20％，钛白粉10％～20％，增韧剂0～10％(不包括端值0％)，抗氧剂0～0.5％，紫外吸收剂0～0.5％，其中，所述增韧剂为玻璃化温度小于或等于T的聚合物，0℃≤T≤25℃。A high-toughness PVDF film material, comprising the following components in weight percent: 60% to 70% of PVDF, 5% to 20% of PMMA, 10% to 20% of titanium dioxide, and 0% to 10% of toughening agent (not Including end value 0%), antioxidant 0-0.5%, ultraviolet absorber 0-0.5%, wherein, the toughening agent is a polymer whose glass transition temperature is less than or equal to T, and 0°C≤T≤25°C.

基于上述技术方案，通过玻璃化温度小于或等于常温的增韧剂的添加，使得PVDF薄膜在常温或低温下仍然具有良好的韧性，从而减小了材料在常温或低温下的热胀冷缩程度。该材料因其适应温度变化的韧性，可以适用于昼夜温差大的环境，尤其可以适用于类似沙漠环境昼夜温差较大的情况。Based on the above technical solution, through the addition of a toughening agent whose glass transition temperature is less than or equal to normal temperature, the PVDF film still has good toughness at normal temperature or low temperature, thereby reducing the degree of thermal expansion and contraction of the material at normal temperature or low temperature . Because of its toughness to adapt to temperature changes, the material can be used in environments with large temperature differences between day and night, especially in environments with large temperature differences between day and night in desert environments.

具体的，所述增韧剂为均聚物或共聚物。Specifically, the toughening agent is a homopolymer or a copolymer.

具体的，所述增韧剂选自氯化聚乙烯(CPE)、丙烯酸树脂(ACR)、甲基丙烯酸-丁二烯-苯乙烯共聚物(MBS)、乙烯-乙酸乙烯共聚物(EVA)、丁腈橡胶或苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)中的任意一种。Specifically, the toughening agent is selected from chlorinated polyethylene (CPE), acrylic resin (ACR), methacrylic acid-butadiene-styrene copolymer (MBS), ethylene-vinyl acetate copolymer (EVA), Either nitrile rubber or styrene-butadiene-styrene block copolymer (SBS).

上述技术方案所提供的各增韧剂在不影响PVDF薄膜的各性能的情况下，可以提升PVDF薄膜材料的常温或低温韧性。The toughening agents provided by the above technical solutions can improve the room temperature or low temperature toughness of the PVDF film material without affecting the various properties of the PVDF film.

优选的，所述增韧剂为苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)、甲基丙烯酸-丁二烯-苯乙烯共聚物(MBS)或丙烯酸树脂(ACR)。Preferably, the toughening agent is styrene-butadiene-styrene block copolymer (SBS), methacrylic acid-butadiene-styrene copolymer (MBS) or acrylic resin (ACR).

上述技术方案所提供的各增韧剂在不影响PVDF薄膜的各性能的情况下，可以显著提升PVDF薄膜材料的常温或低温韧性。The toughening agents provided by the above technical solutions can significantly improve the room temperature or low temperature toughness of the PVDF film material without affecting the various properties of the PVDF film.

本发明还提供了本发明所提供的高韧性PVDF薄膜材料的制备方法，包括以下步骤：将各组分混合后熔融，得到高韧性PVDF薄膜材料。The invention also provides a preparation method of the high-toughness PVDF film material provided by the invention, comprising the following steps: mixing and melting each component to obtain the high-toughness PVDF film material.

具体的，可将高韧性PVDF薄膜材料制备成母粒状，具体的步骤如下：Specifically, the high-toughness PVDF film material can be prepared into a master batch, and the specific steps are as follows:

1)将PMMA磨粉细化，具体的，可采用磨粉机磨粉细化；1) PMMA is pulverized and refined, specifically, a pulverizer can be used for pulverizing and refining;

2)将PMMA粉与PVDF、增韧剂、钛白粉、抗氧剂和紫外吸收剂搅拌混合，得到混合粉料，具体的，可采用混合机搅拌混合；2) Stir and mix PMMA powder with PVDF, toughening agent, titanium dioxide, antioxidant and ultraviolet absorber to obtain a mixed powder. Specifically, a mixer can be used to stir and mix;

3)将混合粉料在180～230℃加热熔融，具体的，可采用造粒机加热熔融；3) Heat and melt the mixed powder at 180-230°C, specifically, a granulator can be used to heat and melt;

4)将熔融的物料拉条或拉丝并切粒，具体的，可采用切粒机；4) Stranding or wire drawing of the molten material and pelletizing, specifically, a pelletizer can be used;

5)物料颗粒过筛得到高韧性PVDF薄膜材料母粒，并再打包成产品，具体的，切粒可采用切粒机。5) The material particles are sieved to obtain master batches of high-toughness PVDF film materials, and then packaged into products. Specifically, a pelletizer can be used for pelletizing.

上述制备方法简单、成本低，得到的高韧性PVDF薄膜材料性能稳定，适于工业生产。The above-mentioned preparation method is simple and low in cost, and the obtained high-toughness PVDF film material has stable properties and is suitable for industrial production.

本发明还提供了一种TPT背膜，包括第一氟膜、附着在所述第一氟膜上的PET膜以及附着在所述PET膜上的第二氟膜，所述第一氟膜和/或所述第二氟膜的材料选自本发明所提供的高韧性PVDF薄膜材料。The present invention also provides a TPT back film, comprising a first fluorine film, a PET film attached to the first fluorine film and a second fluorine film attached to the PET film, the first fluorine film and /or the material of the second fluorine film is selected from the high-toughness PVDF film material provided by the present invention.

上述技术方案所提供的TPT背膜因具有本发明所提供的高韧性PVDF 薄膜，在常温或低温下整体具有良好的韧性，从而减小了TPT背膜整体在常温或低温下的热胀冷缩程度。该TPT背膜因其适应温度变化的韧性，可以适用于昼夜温差大的环境，尤其可以适用于类似沙漠环境昼夜温差较大的情况。The TPT back film provided by the above technical solution has the high toughness PVDF film provided by the present invention, and has good toughness as a whole at normal temperature or low temperature, thereby reducing the thermal expansion and contraction of the TPT back film at normal temperature or low temperature. degree. Due to its toughness to adapt to temperature changes, the TPT back film can be used in environments with large temperature differences between day and night, especially in environments with large temperature differences between day and night in desert environments.

本发明还提供了一种TPE背膜，包括氟膜、附着在所述氟膜上的PET 膜以及附着在所述PET膜上的PE膜，所述氟膜的材料选自本发明所提供的高韧性PVDF薄膜材料。The present invention also provides a TPE back film, comprising a fluorine film, a PET film attached to the fluorine film and a PE film attached to the PET film, the material of the fluorine film is selected from the High toughness PVDF film material.

上述技术方案所提供的TPE背膜因具有本发明所提供的高韧性PVDF 薄膜，在常温或低温下整体具有良好的韧性，从而减小了TPT背膜整体在常温或低温下的热胀冷缩程度。该TPE背膜因其适应温度变化的韧性，可以适用于昼夜温差大的环境，尤其可以适用于类似沙漠环境昼夜温差较大的情况。The TPE back film provided by the above technical solution has the high toughness PVDF film provided by the present invention, and has good toughness as a whole at normal temperature or low temperature, thereby reducing the thermal expansion and contraction of the TPT back film at normal temperature or low temperature. degree. Due to its toughness to adapt to temperature changes, the TPE back film can be applied to environments with large temperature differences between day and night, especially for conditions such as desert environments with large temperature differences between day and night.

本发明还提供了一种太阳能电池板，所述太阳能电池板具有背膜，所述背膜为本发明所提供的TPT背膜，或者，为本发明所提供的TPE背膜。The present invention also provides a solar cell panel, the solar cell panel has a back film, and the back film is the TPT back film provided by the present invention, or the TPE back film provided by the present invention.

TPT背膜和TPE背膜中的氟膜即为高韧性PVDF薄膜材料背板膜，可由高韧性PVDF薄膜材料母粒制备得到，具体的步骤如下：The fluorine film in the TPT back film and TPE back film is the high toughness PVDF film material backsheet film, which can be prepared from the high toughness PVDF film material masterbatch. The specific steps are as follows:

1)将高韧性PVDF薄膜材料母粒加热挤出，得到熔融树脂，具体的，可次用流延机加热挤出；1) Heating and extruding the high-toughness PVDF film material masterbatch to obtain molten resin, specifically, heating and extruding with a casting machine;

2)将熔融树脂经过胶辊成型并冷却，得到背板膜；2) Molding the molten resin through rubber rollers and cooling to obtain a backsheet film;

3)对背板膜检测厚度、高压电机、切边和复卷，得到成品背板膜，并再打包成产品，具体的，可采用测厚仪检测厚度，可采用电晕机高压电机，可采用切边机切边，可采用复卷机复卷。3) Check the thickness of the backboard film, high-voltage motor, edge trimming and rewinding to obtain the finished backboard film, and then pack it into a product. Specifically, a thickness gauge can be used to detect the thickness, a high-voltage motor of a corona machine can be used, and a high-voltage motor can be used. The edge trimming machine trims and can be rewound by a rewinder.

上述技术方案所提供的太阳能电池板的背膜因具有本发明所提供的高韧性PVDF薄膜，在常温或低温下整体具有良好的韧性，从而减小了太阳能电池板整体在常温或低温下的热胀冷缩程度。该太阳能电池板因其适应温度变化的韧性，可以适用于昼夜温差大的环境，尤其可以适用于类似沙漠环境昼夜温差较大的情况。The back film of the solar cell panel provided by the above technical solution has good toughness at normal temperature or low temperature as a whole because of the high toughness PVDF film provided by the present invention, thereby reducing the heat loss of the solar cell panel as a whole at normal temperature or low temperature. The degree of expansion and contraction. Due to its toughness to adapt to temperature changes, the solar cell panel can be applied to environments with large temperature differences between day and night, especially for environments with large temperature differences between day and night like desert environments.

具体实施方式Detailed ways

以下对本发明的原理和特征进行描述，所举实施例只用于解释本发明，并非用于限定本发明的范围。The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

实施例1Example 1

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF60％， PMMA 20％，钛白粉14％，增韧剂5％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 60% PVDF, 20% PMMA, 14% titanium dioxide, 5% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)。The toughening agent is selected from styrene-butadiene-styrene block copolymer (SBS).

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于110％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 110%.

实施例2Example 2

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF70％， PMMA13％，钛白粉10％，增韧剂6％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 70% PVDF, 13% PMMA, 10% titanium dioxide, 6% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择为甲基丙烯酸-丁二烯-苯乙烯共聚物。The toughening agent is selected as methacrylic acid-butadiene-styrene copolymer.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于130％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 130%.

实施例3Example 3

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF62％，PMMA20％，钛白粉10％，增韧剂7％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 62% PVDF, 20% PMMA, 10% titanium dioxide, 7% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择为丙烯酸树脂。The toughening agent is selected as acrylic resin.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于200％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 200%.

实施例4Example 4

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF65％， PMMA 20％，钛白粉10％，增韧剂5％。The high-toughness PVDF film material includes the following components in weight percent: 65% of PVDF, 20% of PMMA, 10% of titanium dioxide, and 5% of toughening agent.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择为丙烯酸树脂。The toughening agent is selected as acrylic resin.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于120％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 120%.

实施例5Example 5

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF 70％， PMMA 10％，钛白粉10％，增韧剂9.65％，抗氧剂0.25％，紫外吸收剂0.1％。The high-toughness PVDF film material includes the following components in weight percentage: 70% of PVDF, 10% of PMMA, 10% of titanium dioxide, 9.65% of toughening agent, 0.25% of antioxidant, and 0.1% of ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择苯乙烯-丁二烯-苯乙烯嵌段共聚物。The toughening agent is selected from styrene-butadiene-styrene block copolymer.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于240％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 240%.

实施例6Example 6

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF 60％， PMMA20％，钛白粉15％，增韧剂4.25％，抗氧剂0.5％，紫外吸收剂0.25％。The high-toughness PVDF film material includes the following components in weight percentage: 60% of PVDF, 20% of PMMA, 15% of titanium dioxide, 4.25% of toughening agent, 0.5% of antioxidant, and 0.25% of ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择甲基丙烯酸-丁二烯-苯乙烯共聚物。The toughening agent is selected from methacrylic acid-butadiene-styrene copolymer.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于100％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 100%.

实施例7Example 7

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF 65％， PMMA 5％，钛白粉20％，增韧剂9.4％，抗氧剂0.1％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percentage: 65% of PVDF, 5% of PMMA, 20% of titanium dioxide, 9.4% of toughening agent, 0.1% of antioxidant, and 0.5% of ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择丙烯酸树脂。Toughening agent chooses acrylic resin.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于220％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 220%.

对比例1Comparative example 1

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF69％， PMMA20％，钛白粉10％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percentage: 69% of PVDF, 20% of PMMA, 10% of titanium dioxide, 0.5% of antioxidant, and 0.5% of ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于50％。通过对比例1可以看出，本发明通过所公开的增韧剂增添加，显著的提高了PVDF薄膜材料的韧性。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 50%. It can be seen from Comparative Example 1 that the present invention significantly improves the toughness of the PVDF film material by adding the disclosed toughening agent.

对比例2Comparative example 2

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF55％， PMMA 25％，钛白粉14％，增韧剂5％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 55% PVDF, 25% PMMA, 14% titanium dioxide, 5% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)。The toughening agent is selected from styrene-butadiene-styrene block copolymer (SBS).

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于50％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 50%.

对比例3Comparative example 3

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF55％， PMMA15％，钛白粉14％，增韧剂15％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 55% PVDF, 15% PMMA, 14% titanium dioxide, 15% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择苯乙烯-丁二烯-苯乙烯嵌段共聚物(SBS)。The toughening agent is selected from styrene-butadiene-styrene block copolymer (SBS).

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于120％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 120%.

对比例4Comparative example 4

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF72％， PMMA 3％，钛白粉14％，增韧剂5％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 72% PVDF, 3% PMMA, 14% titanium dioxide, 5% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择苯乙烯-丁二烯-苯乙烯嵌段共聚物。The toughening agent is selected from styrene-butadiene-styrene block copolymer.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于70％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 70%.

对比例5Comparative example 5

高韧性PVDF薄膜材料包括以下重量百分含量的各组分：PVDF72％， PMMA 13％，钛白粉4％，增韧剂5％，抗氧剂0.5％，紫外吸收剂0.5％。The high-toughness PVDF film material includes the following components in weight percent: 72% PVDF, 13% PMMA, 4% titanium dioxide, 5% toughening agent, 0.5% antioxidant, and 0.5% ultraviolet absorber.

PVDF为浙江巨化股份有限公司生产的JHG-600。PVDF is JHG-600 produced by Zhejiang Juhua Co., Ltd.

PMMA为中国台湾奇美CM-207。PMMA is Chimei CM-207, Taiwan, China.

钛白粉为美国杜邦R104。Titanium dioxide is American DuPont R104.

增韧剂选择苯乙烯-丁二烯-苯乙烯嵌段共聚物。The toughening agent is selected from styrene-butadiene-styrene block copolymer.

抗氧剂为抗氧剂1010。Antioxidant is Antioxidant 1010.

紫外吸收剂为UV326。The UV absorber is UV326.

将各组分混合后熔融，并制备得到高韧性PVDF薄膜材料薄膜。The components are mixed and then melted to prepare a high-toughness PVDF film material film.

按照GB 13022-1991塑料薄膜拉伸性能试验方法对制备得到的高韧性 PVDF薄膜材料薄膜进行测试，结果为：进行-40℃-85℃冷热循环1000次，每次6小时处理，膜进行冷热循环1000次后，薄膜不开裂，断裂伸长率大于60％。According to GB 13022-1991 plastic film tensile property test method, the prepared high-toughness PVDF film material film was tested, and the result was: -40°C-85°C cold and heat cycle 1000 times, each time for 6 hours, the film was cooled After 1000 thermal cycles, the film does not crack, and the elongation at break is greater than 60%.

通过对比例2、3、4、5可以看出，在PVDF 60％～70％且PMMA 5％～ 20％的配比条件下，增加本发明所公开的增韧剂，才可显著的提高PVDF薄膜材料的韧性。It can be seen from comparative examples 2, 3, 4, and 5 that only when the toughening agent disclosed in the present invention is added under the proportioning conditions of 60% to 70% of PVDF and 5% to 20% of PMMA, can the PVDF be significantly improved. Toughness of thin film materials.

以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (8)

1. a kind of high tenacity PVDF thin film material, which is characterized in that each component including following weight percentage: PVDF 60%~70%, PMMA 5%~20%, titanium dioxide 10%~20%, toughener 0~10%, antioxidant 0~0.5% are ultraviolet Absorbent 0~0.5%, wherein polymer of the toughener for glass transition temperature less than or equal to T, 0 DEG C≤T≤25 DEG C.
2. high tenacity PVDF thin film material according to claim 1, it is characterised in that: the toughener is for homopolymer or altogether Polymers.
3. high tenacity PVDF thin film material according to claim 1 or 2, it is characterised in that: the toughener is selected from chlorination Polyethylene, acrylic resin, Methacrylate-butadiene-styrene, ethene-vinyl acetate copolymer, nitrile rubber Or any one in Styrene-Butadiene-Styrene Block Copolymer.
4. high tenacity PVDF thin film material according to claim 1 or 2, it is characterised in that: the toughener is selected from benzene second It is any in alkene-butadiene-styrene block copolymer, Methacrylate-butadiene-styrene or acrylic resin It is a kind of.
5. a kind of preparation method of high tenacity PVDF thin film material according to any one of claims 1 to 4, which is characterized in that The following steps are included: melting after each component is mixed, high tenacity PVDF thin film material is obtained.
6. a kind of TPT notacoria including the first fluorine film, the PET film being attached in first fluorine film and is attached to the PET film On the second fluorine film, it is characterised in that: the material of first fluorine film and/or second fluorine film selected from Claims 1-4 appoint High tenacity PVDF thin film material described in one.
7. a kind of TPE notacoria, including fluorine film, the PET film being attached in the fluorine film and the PE being attached on the PET film Film, it is characterised in that: the material of the fluorine film is selected from any high tenacity PVDF thin film material of Claims 1-4.
8. a kind of solar panel, the solar panel has notacoria, it is characterised in that: the notacoria is claim TPT notacoria described in 6, alternatively, being TPE notacoria as claimed in claim 7.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114734703A (en) * 2022-03-23 2022-07-12 嘉兴高正新材料科技股份有限公司 Ultra-low temperature resistant fluorine film and preparation method thereof
CN116141788A (en) * 2022-11-30 2023-05-23 浙江歌瑞新材料有限公司 A kind of double-sided PVDF architectural membrane material and forming method thereof for corrosive environment protection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007085769A2 (en) * 2006-01-25 2007-08-02 Arkema France Flexible film based on fluorinated polymer
CN104327433A (en) * 2013-10-30 2015-02-04 东莞市长安东阳光铝业研发有限公司 Preparation method of polyvinylidene fluoride-based thin film
CN106159010A (en) * 2015-04-13 2016-11-23 江苏昊华光伏科技有限公司 High tensile PVDF solar energy backboard membrane

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007085769A2 (en) * 2006-01-25 2007-08-02 Arkema France Flexible film based on fluorinated polymer
CN104327433A (en) * 2013-10-30 2015-02-04 东莞市长安东阳光铝业研发有限公司 Preparation method of polyvinylidene fluoride-based thin film
CN106159010A (en) * 2015-04-13 2016-11-23 江苏昊华光伏科技有限公司 High tensile PVDF solar energy backboard membrane

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
孔子明: "《最新新型工程材料生产新技术应用与新产品开发研制及行业技术标准实用大全 2 橡胶与塑料卷》", 30 November 2004, 学苑音像出版社 *
段予忠等: "《塑料改性 再版》", 31 May 1992, 科学技术文献出版社 *
黄伯云等: "《中国战略性新兴产业 新材料 太阳能新材料》", 31 December 2017, 中国铁道出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114734703A (en) * 2022-03-23 2022-07-12 嘉兴高正新材料科技股份有限公司 Ultra-low temperature resistant fluorine film and preparation method thereof
CN116141788A (en) * 2022-11-30 2023-05-23 浙江歌瑞新材料有限公司 A kind of double-sided PVDF architectural membrane material and forming method thereof for corrosive environment protection

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