WO2016090777A1 - 一种储油囊用tpu复合材料 - Google Patents

一种储油囊用tpu复合材料 Download PDF

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WO2016090777A1
WO2016090777A1 PCT/CN2015/076130 CN2015076130W WO2016090777A1 WO 2016090777 A1 WO2016090777 A1 WO 2016090777A1 CN 2015076130 W CN2015076130 W CN 2015076130W WO 2016090777 A1 WO2016090777 A1 WO 2016090777A1
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tpu
composite material
resin
parts
layer
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PCT/CN2015/076130
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French (fr)
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郑玉婴
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福州大学
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2310/00—Masterbatches

Definitions

  • the invention relates to a TPU composite material for oil storage capsules and a preparation method thereof.
  • TPU composite material for oil storage bag has the characteristics of good oil resistance, high strength, light weight, good flexibility and excellent welding performance. Therefore, it is widely used in oil supply, transportation and storage.
  • the traditional TPU composite material for oil storage bag is mostly made of polyester TPU material. Although it has excellent oil resistance, it has poor hydrolysis resistance and cold resistance of -25 to -30 °C. It encounters rainwater or oil during outdoor storage and transportation. When it contains a certain amount of water, it will affect the performance of the material and pose a safety hazard.
  • the traditional oil storage bag TPU composite material in order to improve the peel strength, need to apply enough glue, the glue fully penetrates the fabric, and will reduce the tear strength of the composite material. Therefore, the development of a TPU composite material for oil storage bags has good practical value.
  • the present invention provides a high cost performance, good flexibility, good oil resistance, good water resistance, low temperature tolerance of -40 to -50 ° C, good peel strength, tear strength TPU composite material for good oil storage capsule and preparation method thereof.
  • the present invention adopts the following technical solutions:
  • the utility model relates to a TPU composite material for oil storage capsules, which comprises a TPU mask layer, a PU adhesive layer, a modified fiber reinforcement layer, a PU adhesive layer and a TPU base film layer in order from top to bottom.
  • the film of the TPU mask layer and the base film layer comprises the following components in parts by weight: 100 parts of TPU resin, 10-20 parts of Elvaloy resin, 10-20 parts of TPSiV resin, and 4-8 parts of TPU masterbatch.
  • the antioxidant is 0.5 to 1.5 parts
  • the light stabilizer is 0.5 to 1.5 parts
  • the flame retardant is 10 to 15 parts.
  • the TPU resin is a polyether type and has a hardness of 85-95A:
  • the Elvaloy resin is a high polarity ethylene terpolymer formed of one or more of Elvaloy 741/742, HP441, HP551, HP661, HP662, HP771;
  • the TPSiV resin is a 3010 series TPU-based silicone resin, which is commercially available from Dow Corning; it has excellent compression set, excellent oil resistance and hydrolysis resistance.
  • the raw material of the PU adhesive layer is a polyether polyurethane two-liquid type glue.
  • the modified fiber reinforced layer is obtained by coating a high-strength polyester fiber mesh, a high-strength nylon fiber mesh or a high-strength aramid fiber mesh cloth with an aqueous polyurethane coating agent.
  • the aqueous polyurethane coating agent is in parts by weight, 100 parts of aqueous polyurethane resin, 2-8 parts of aqueous crosslinking agent, and then Add water to adjust the viscosity to 300-500mPa.s;
  • the grade of the aqueous polyurethane resin is STAHL RU-22-199, and the solid content is 50 ⁇ 2%;
  • the grade of the aqueous crosslinking agent is STAHL XR-5588, and the solid content is 80 ⁇ 2%.
  • the preparation method of the TPU composite material for the oil storage capsule comprises the following steps:
  • the aqueous polyurethane coating agent roll is applied to the upper and lower sides of the fiber mesh cloth, and then dried at 120-130 ° C, and the modified fiber reinforced layer is obtained after winding;
  • the modified fiber reinforced layer having the PU adhesive layer prepared in the step 2) is passed through an unwinding device and activated by hot air preheating, and then the cast TPU mask and the base film obtained in the step 3) are at 30-50 kgf.
  • the finished product is obtained by lamination at 170-190 °C.
  • step 2) the amount of the polyether polyurethane two-component glue is controlled according to the dry weight of the sizing amount, and is controlled at 110-120 gsm;
  • Step 3 The temperature of each section of the extrusion casting is: feed section 140-160 ° C, homogenization section 190-200 ° C, metering section 185-195 ° C, die 180-190 ° C.
  • the TPU layer of the traditional TPU oil sac has good oil resistance, but has poor hydrolysis resistance and is resistant to low temperature only at -20 to -30 °C.
  • the TPU mask layer and the base film layer of the invention adopt a casting process, and a polyether type TPU resin is selected as a raw material, which has excellent hydrolysis resistance compared with the polyester type TPU resin;
  • High polarity ethylene terpolymer (Elvaloy resin) can be modified to improve the oil resistance, low temperature resistance, chemical resistance and physical and mechanical strength of TPU film;
  • TPU based silicone resin (TPSiV resin) is used for modification.
  • the TPU film can improve the water resistance, oil resistance and compression resistance, and has good resilience and scratch resistance.
  • the obtained TPU mask layer and the bottom film layer can withstand low temperature of -40 to -50 °C.
  • the invention adopts the water-based polyurethane coating agent to modify the fiber mesh cloth first, so that the surface of the fiber is coated with a polyurethane coating, which can avoid the corrosion of the solvent by the solvent-based PU glue, and at the same time improve the attachment of the PU glue on the fiber surface. Focusing on, it can improve the peeling strength of the composite material and ensure the tear strength. It solves the contradiction between the peel strength and the tear strength of the traditional TPU oil sac material. It can meet the oil sac material and requires high peel strength and tear strength. Requirements.
  • the invention has the beneficial effects that the present invention discloses a TPU composite material for oil storage capsules, which includes a TPU mask layer, a PU adhesive layer, a modified fiber reinforcement layer, a PU adhesive layer and a TPU bottom from top to bottom. Membrane layer.
  • the invention imparts better water resistance and cold resistance to the TPU composite material in the case of excellent oil resistance, and the resistance to low temperature can reach -40 to -50 ° C,
  • the invention also solves the contradiction between the peeling strength and the tear strength of the composite material, so that the obtained oil storage bag TPU composite material has excellent oil resistance, water resistance, cold resistance, tear resistance and high peel strength, and presents Bright Significant performance advantages.
  • the TPU composite material for the oil storage bag includes a TPU mask layer, a PU adhesive layer, a modified fiber reinforced layer, a PU adhesive layer and a TPU base film layer from top to bottom, and the preparation method thereof comprises the following steps:
  • the aqueous polyurethane coating agent roll is applied to the upper and lower sides of the high-strength polyester fiber mesh cloth, and then dried at 120 ° C to obtain a modified fiber reinforced layer after winding;
  • the modified fiber reinforced layer having the PU adhesive layer prepared in the step 3) is passed through an unwinding device, and is activated by hot air preheating, and then the cast TPU mask and the base film obtained in the step 4) are at 30 kgf, 170.
  • the finished product is obtained by laminating at °C. The performance test was carried out, and the results are shown in Table 1.
  • the TPU composite material for the oil storage bag includes a TPU mask layer, a PU adhesive layer, a modified fiber reinforced layer, a PU adhesive layer and a TPU base film layer from top to bottom, and the preparation method thereof comprises the following steps:
  • polyether-type TPU resin hardness: 90A
  • Elvaloy resin 15 parts of TPSiV resin (3010 series TPU-based silicone resin)
  • 6 parts of TPU masterbatch 1.0 part of antioxidant, light stable 1.0 part of the agent and 12 parts of the flame retardant
  • the Elvaloy resin is a highly polar ethylene terpolymer, which is composed of Elvaloy 741 and HP661.
  • HP771 is a compounding system formed by a mass ratio of 1:1:1; the temperature of each section of the extrusion casting is: a feed section of 150 ° C, a homogenization section of 195 ° C, a metering section of 190 ° C, and a die of 185 ° C;
  • the modified fiber reinforced layer having the PU adhesive layer prepared in the step 3) is passed through an unwinding device, and is activated by hot air preheating, and then the cast TPU mask and the base film obtained in the step 4) are at 40 kgf, 180.
  • the finished product is obtained by laminating at °C. The performance test was carried out, and the results are shown in Table 1.
  • the TPU composite material for the oil storage bag includes a TPU mask layer, a PU adhesive layer, a modified fiber reinforced layer, a PU adhesive layer and a TPU base film layer from top to bottom, and the preparation method thereof comprises the following steps:
  • the aqueous polyurethane coating agent roll is applied to the upper and lower sides of the high-strength aramid fiber mesh, and then dried at 130 ° C to obtain a modified fiber reinforced layer after winding;
  • the modified fiber reinforced layer having the PU adhesive layer prepared in the step 3) is passed through an unwinding device and activated by hot air preheating, and then the cast TPU mask and the base film obtained in the step 4) are at 50 kgf, 190.
  • the finished product is obtained by laminating at °C. Perform performance testing on it, The results are shown in Table 1.
  • the TPU composite material for the oil storage bag obtained by the method of the present invention has more excellent oil resistance, water resistance, cold resistance, tear resistance and high peel strength compared with the conventional TPU oil bladder material. Has good practical value.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明公开了一种储油囊用TPU复合材料，其依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层；是将聚醚型聚氨酯二液型胶水涂覆到改性纤维增强层的上下两面，烘干、收卷后经退卷装置，以热风预热激活后，再与流延TPU面膜和底膜在高温高压下贴合制得成品。与传统的TPU油囊材料相比，在耐油性优异的情况下，本发明赋予了TPU复合材料耐水性、耐寒性，也解决了复合材料剥离强度与撕裂强度的矛盾性，所得到的储油囊用TPU复合材料具有优异的抗油性、耐水性、耐寒性、抗撕裂和高剥离强度，呈现出明显的性能优势。

Description

一种储油囊用TPU复合材料 技术领域
本发明涉及一种储油囊用TPU复合材料及其制备方法。
背景技术
储油囊用TPU复合材料，具有耐油性好、强度高、质量轻、柔韧性好、焊接性能优异等特性，因此在油料补给、运输、储存等领域应用广泛。传统的储油囊用TPU复合材料，多是采用聚酯型TPU材料，虽具有优异的耐油性，但是耐水解性差，耐寒性能-25～-30℃，在户外储运时遇到雨水或油料中含有一定水分时，都会影响材料的使用性能，产生安全隐患。同时，传统的储油囊用TPU复合材料，为了提高剥离强度，需要上足够的胶水，胶水充分的渗透附着在织物上，又会降低复合材料的撕裂强度。因此，开发一种储油囊用TPU复合材料具有良好的实用价值。
发明内容
为了避免背景技术中介绍的不足之处，本发明提供了一种性价比高、柔韧性好、耐油性好、耐水性好、低温可耐受-40～-50℃、剥离强度好、撕裂强度好的储油囊用TPU复合材料及其制备方法。
为实现上述目的，本发明采用如下技术方案：
一种储油囊用TPU复合材料，其从上到下依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层。
所述TPU面膜层和底膜层的膜材以重量份数计包含以下组分：TPU树脂100份，Elvaloy树脂10～20份，TPSiV树脂10～20份，TPU色母粒4～8份，抗氧剂0.5～1.5份，光稳定剂0.5～1.5份，阻燃剂10～15份。
所述TPU树脂为聚醚型，硬度为85-95A：
所述Elvaloy树脂为高极性乙烯三元共聚物，由Elvaloy741/742、HP441、HP551、HP661、HP662、HP771中的一种或两种以上形成；
所述TPSiV树脂为3010系列TPU基有机硅树脂，购于道康宁；具有优良的压缩形变，优异的抗油性和抗水解性。
所述PU粘合层的原料为聚醚型聚氨酯二液型胶水。
所述改性纤维增强层为高强聚酯纤维网布、高强尼龙纤维网布或高强芳纶纤维网布经水性聚氨酯涂层剂涂覆改性而得。
所述水性聚氨酯涂层剂以重量份数计，含水性聚氨酯树脂100份，水性交联剂2-8份，再 加水调整粘度至300-500mPa.s即得；
所述水性聚氨酯树脂的牌号为STAHL RU-22-199，固含量为50±2％；
所述水性交联剂的牌号为STAHL XR-5588，固含量为80±2％。
所述储油囊用TPU复合材料的制备方法，具体包括以下步骤：
1)采用40-60目的辊，将水性聚氨酯涂层剂网辊涂覆到纤维网布的上下两面，再于120-130℃下烘干，收卷后制得改性纤维增强层；
2)将聚醚型聚氨酯二液型胶水用刮刀涂覆到改性纤维增强层上下两面，145-165℃烘干、收卷得到具有PU粘合层的改性纤维增强层；
3)将TPU树脂、Elvaloy树脂、TPSiV树脂、TPU色母粒、抗氧剂、光稳定剂和阻燃剂混匀后除湿干燥完全，采用挤出流延加工成TPU面膜及底膜；
4)将步骤2)制得的具有PU粘合层的改性纤维增强层经过退卷装置，以热风预热激活后，再与步骤3)得到的流延TPU面膜和底膜在30-50kgf、170-190℃下贴合制得成品。
步骤2)中聚醚型聚氨酯二液型胶水的用量按上胶量干重计，控制在110-120gsm；
步骤3)挤出流延各区段的温度为：进料段140-160℃，均化段190-200℃，计量段185-195℃，模头180-190℃。
传统TPU油囊的TPU层虽耐油性好，但耐水解性差，且对低温的耐受仅在-20～-30℃。为了兼顾优异的耐油与耐水性，本发明TPU面膜层与底膜层采用流延工艺，并选用聚醚型TPU树脂为原料，其与聚酯型TPU树脂相比具有优异的耐水解性；选用高极性的乙烯三元共聚物(Elvaloy树脂)进行改性，可提高TPU薄膜耐油、耐低温、耐化学腐蚀的性能以及物理机械强度；选用TPU基有机硅树脂(TPSiV树脂)进行改性，可提高TPU薄膜的耐水性、耐油性以及抗压缩性能，回弹性好，耐刮擦，所得TPU面膜层与底膜层对低温的耐受可达-40～-50℃。
本发明采用水性聚氨酯涂层剂先对纤维网布进行改性处理，使纤维表面包覆一层聚氨酯涂层，可避免溶剂型PU胶水对纤维的腐蚀，同时提高了PU胶水在纤维表面的附着力，可以提高复合材料的剥离强度，又能保证撕裂强度，解决了传统TPU油囊材料剥离强度与撕裂强度相矛盾的难题，可满足储油囊材料同时需要高剥离强度以及撕裂强度的要求。
本发明的有益效果在于：本发明公开了一种储油囊用TPU复合材料，其从上到下依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层。与传统的TPU油囊材料相比，在耐油性优异的情况下，本发明赋予了TPU复合材料较好的耐水性、耐寒性，其对低温的耐受可达-40～-50℃，同时本发明也解决了复合材料剥离强度与撕裂强度的矛盾性，使所得到的储油囊用TPU复合材料具有优异的抗油性，耐水性，耐寒性，抗撕裂和高剥离强度，呈现出明 显的性能优势。
具体实施方式
为了使本发明所述的内容更加便于理解，下面结合具体实施方式对本发明所述的技术方案做进一步的说明，但是本发明不仅限于此。
实施例1
一种储油囊用TPU复合材料从上到下依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层，其制备方法具体包括以下步骤：
1)以重量份数计，将水性聚氨酯树脂(STAHL RU-22-199，固含量为48％)100份和水性交联剂(STAHL XR-5588，固含量为78％)2份充分搅拌混合后，再加水调整粘度至350±20mPa.s，制得水性聚氨酯涂层剂；
2)采用60目的辊，将水性聚氨酯涂层剂网辊涂覆到高强聚酯纤维网布的上下两面，再于120℃下烘干，收卷后制得改性纤维增强层；
3)将聚醚型聚氨酯二液型胶水用刮刀涂覆到改性纤维增强层上下两面，145℃烘干、收卷得到具有PU粘合层的改性纤维增强层；聚醚型聚氨酯二液型胶水的用量按上胶量干重计，控制在110gsm；
4)将聚醚型TPU树脂100份(硬度为85A)、Elvaloy树脂10份、TPSiV树脂(3010系列TPU基有机硅树脂)20份、TPU色母粒4份、抗氧剂0.5份、光稳定剂1.5份、阻燃剂10份混匀后除湿干燥完全，采用挤出流延加工成TPU面膜及底膜；所述Elvaloy树脂为高极性的乙烯三元共聚物，是由Elvaloy742与HP662按质量比1:1形成的复配体系；所述挤出流延各区段的温度为：进料段140℃，均化段190℃，计量段185℃，模头180℃；
5)将步骤3)制得的具有PU粘合层的改性纤维增强层经过退卷装置，以热风预热激活后，再与步骤4)得到的流延TPU面膜和底膜在30kgf、170℃下贴合制得成品。对其进行性能测试，结果见表1。
实施例2
一种储油囊用TPU复合材料从上到下依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层，其制备方法具体包括以下步骤：
1)以重量份数计，将水性聚氨酯树脂(STAHL RU-22-199，固含量为50％)100份和水性交联剂(STAHL XR-5588，固含量为80％)6份充分搅拌混合后，再加水调整粘度至400±20mPa.s，制得水性聚氨酯涂层剂；
2)采用50目的辊，将水性聚氨酯涂层剂网辊涂覆到高强尼龙纤维网布的上下两面，再于125 ℃下烘干，收卷后制得改性纤维增强层；
3)将聚醚型聚氨酯二液型胶水用刮刀涂覆到改性纤维增强层上下两面，155℃烘干、收卷得到具有PU粘合层的改性纤维增强层；聚醚型聚氨酯二液型胶水的用量按上胶量干重计，控制在115gsm；
4)将聚醚型TPU树脂100份(硬度为90A)、Elvaloy树脂15份、TPSiV树脂(3010系列TPU基有机硅树脂)15份、TPU色母粒6份、抗氧剂1.0份、光稳定剂1.0份、阻燃剂12份混匀后除湿干燥完全，采用挤出流延加工成TPU面膜及底膜；所述Elvaloy树脂为高极性的乙烯三元共聚物，是由Elvaloy741、HP661、HP771按质量比1:1:1形成的复配体系；所述挤出流延各区段的温度为：进料段150℃，均化段195℃，计量段190℃，模头185℃；
5)将步骤3)制得的具有PU粘合层的改性纤维增强层经过退卷装置，以热风预热激活后，再与步骤4)得到的流延TPU面膜和底膜在40kgf、180℃下贴合制得成品。对其进行性能测试，结果见表1。
实施例3
一种储油囊用TPU复合材料从上到下依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层，其制备方法具体包括以下步骤：
1)以重量份数计，将水性聚氨酯树脂(STAHL RU-22-199，固含量为52％)100份和水性交联剂(STAHL XR-5588，固含量为82％)8份充分搅拌混合后，再加水调整粘度至480±20mPa.s，制得水性聚氨酯涂层剂；
2)采用60目的辊，将水性聚氨酯涂层剂网辊涂覆到高强芳纶纤维网布的上下两面，再于130℃下烘干，收卷后制得改性纤维增强层；
3)将聚醚型聚氨酯二液型胶水用刮刀涂覆到改性纤维增强层上下两面，165℃烘干、收卷得到具有PU粘合层的改性纤维增强层；聚醚型聚氨酯二液型胶水的用量按上胶量干重计，控制在120gsm；
4)将聚醚型TPU树脂100份(硬度为95A)、Elvaloy树脂20份、TPSiV树脂(3010系列TPU基有机硅树脂)10份、TPU色母粒8份、抗氧剂1.5份、光稳定剂0.5份、阻燃剂15份混匀后除湿干燥完全，采用挤出流延加工成TPU面膜及底膜；所述Elvaloy树脂为高极性的乙烯三元共聚物HP662；所述挤出流延各区段的温度为：进料段160℃，均化段200℃，计量段195℃，模头190℃；
5)将步骤3)制得的具有PU粘合层的改性纤维增强层经过退卷装置，以热风预热激活后，再与步骤4)得到的流延TPU面膜和底膜在50kgf、190℃下贴合制得成品。对其进行性能测试， 结果见表1。
表1 本发明储油囊TPU复合材料产品与传统产品的性能对比
Figure PCTCN2015076130-appb-000001
从表1可见，与传统的TPU油囊材料相比，本发明方法所得到的储油囊用TPU复合材料，具有更加优异的抗油性、耐水性、耐寒性、抗撕裂和高剥离强度，具有良好的实用价值。
以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所做的均等变化与修饰，皆应属本发明的涵盖范围。

Claims (8)

  1. 一种储油囊用TPU复合材料，其特征在于：从上到下依次包括TPU面膜层、PU粘合层、改性纤维增强层、PU粘合层和TPU底膜层。
  2. 根据权利要求1所述储油囊用TPU复合材料，其特征在于：以重量份数计，所述TPU面膜层和底膜层的膜材包含以下组分：TPU树脂100份，Elvaloy树脂10～20份，TPSiV树脂10～20份，TPU色母粒4～8份，抗氧剂0.5～1.5份，光稳定剂0.5～1.5份，阻燃剂10～15份。
  3. 根据权利要求2所述储油囊用TPU复合材料，其特征在于：所述TPU树脂为聚醚型，硬度为85-95A：
    所述Elvaloy树脂为高极性乙烯三元共聚物，由Elvaloy741/742、HP441、HP551、HP661、HP662、HP771中的一种或两种以上形成；
    所述TPSiV树脂为3010系列TPU基有机硅树脂。
  4. 根据权利要求1所述储油囊用TPU复合材料，其特征在于：所述PU粘合层的原料为聚醚型聚氨酯二液型胶水。
  5. 根据权利要求1所述储油囊用TPU复合材料，其特征在于：所述改性纤维增强层为高强聚酯纤维网布、高强尼龙纤维网布或高强芳纶纤维网布经水性聚氨酯涂层剂涂覆改性而得。
  6. 根据权利要求5所述储油囊用TPU复合材料，其特征在于：以重量份数计，所述水性聚氨酯涂层剂含水性聚氨酯树脂100份，水性交联剂2-8份，再加水调整粘度至300-500mPa.s即得；
    所述水性聚氨酯树脂的固含量为50±2％；
    所述水性交联剂的固含量为80±2％。
  7. 根据权利要求1所述储油囊用TPU复合材料，其特征在于：其制备方法具体包括以下步骤：
    1)采用40-60目的辊，将水性聚氨酯涂层剂网辊涂覆到纤维网布的上下两面，再于120-130℃下烘干，收卷后制得改性纤维增强层；
    2)将聚醚型聚氨酯二液型胶水用刮刀涂覆到改性纤维增强层上下两面，145-165℃烘干、收卷得到具有PU粘合层的改性纤维增强层；
    3)将TPU树脂、Elvaloy树脂、TPSiV树脂、TPU色母粒、抗氧剂、光稳定剂和阻燃剂混匀后除湿干燥完全，采用挤出流延加工成TPU面膜及底膜；
    4)将步骤2)制得的具有PU粘合层的改性纤维增强层经过退卷装置，以热风预热激活后，再与步骤3)得到的流延TPU面膜和底膜在30-50kgf、170-190℃下贴合制得成品。
  8. 根据权利要求7所述储油囊用TPU复合材料，其特征在于：步骤2)中聚醚型聚氨酯二 液型胶水的用量按上胶量干重计，控制在110-120gsm；
    步骤3)挤出流延各区段的温度为：进料段140-160℃，均化段190-200℃，计量段185-195℃，模头180-190℃。
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