CN109723758B - High-performance V-belt and preparation method thereof - Google Patents
High-performance V-belt and preparation method thereof Download PDFInfo
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Abstract
本发明公开了一种高性能三角带,所述三角带包括强力层,所述强力层上部设有伸张层,强力层下部设有压缩层,伸张层、压缩层外侧包裹有包布层;所述强力层为表面改性的钢化棕丝。本发明采用钢化棕丝作为强力层材料,提高三角带在运转过程中所产生的拉伸等应力,同时优化底胶材料配方,提高材料的物理机械性能以及耐弯曲、耐疲劳性能,优化严格控制三角胶生产工艺,提高材料的工艺效率,进而保证产品的质量和品质。The invention discloses a high-performance V-belt. The V-belt comprises a strength layer, an upper part of the strength layer is provided with a stretch layer, a lower part of the strength layer is provided with a compression layer, and the outer side of the stretch layer and the compression layer is wrapped with a cloth layer; The strength layer is surface-modified tempered brown wire. The invention adopts tempered brown wire as the material of the strength layer, improves the tensile stress and other stress generated by the V-belt during the operation, optimizes the formulation of the primer material, improves the physical and mechanical properties, bending resistance and fatigue resistance of the material, and optimizes and strictly controls Apex production process, improve the process efficiency of materials, and then ensure the quality and quality of products.
Description
技术领域technical field
本发明涉及三角带技术领域,具体涉及一种高性能三角带及其制备方法。The invention relates to the technical field of V-belts, in particular to a high-performance V-belt and a preparation method thereof.
背景技术Background technique
三角带有特种带芯结构和绳芯结构两种,分别由包布、顶胶、抗拉体和底胶四部分组成;绳芯结构的三角带制造方便,抗拉强度一般,价格低廉,应用广泛,特种带芯结构的三角带韧性好,强度高,适用于转速较高的场合,橡胶材质的三角带一般由包布层、伸张层(顶胶)、强力层(抗拉层)和压缩层(底胶)等部分构成。There are two kinds of V-belts with special belt core structure and rope core structure, which are composed of four parts: covering cloth, top rubber, tensile body and bottom rubber. The V-belt with a special core structure has good toughness and high strength, and is suitable for occasions with high rotation speed. The V-belt made of rubber is generally composed of a cloth covering layer, a tensile layer (top rubber), a strong layer (tensile layer) and a compression layer. layer (primer) and other parts.
包布层,包布层是由斜截成45°的平纹胶帆布(主要是全棉帆布和涤棉帆布)组成,具有优良的伸缩和摩擦性,能连接各个部分成为整体,保护其他部分不受磨损、浸蚀,并能增加V带的挺括性的作用;伸张胶层,伸张胶层是由弹性较高,并具有优良的伸张性能的胶料组成,承受V带在运转弯曲时的拉伸应力,并对强力层起到缓冲保护作用;强力层是V带的骨架,主要的种类有聚酯线绳、聚酯钢化棕丝、芳纶线绳和浸胶帘子布等,作用是承受V带在运转过程中所产生的拉伸等应力,是三角带传动过程中的主要受力部分;缓冲胶是聚酯钢化棕丝带芯或是线绳带芯的三角带在强力层的周围,有一层同带芯具有良好粘附强度的胶料,即为缓冲胶,它起到固定带芯的作用,并能吸收三角带在高速运转时频繁变形产生的动态剪切应力;压缩胶层是由耐弯曲疲劳性能优良的胶料组成,承受三角带在运转弯曲时所产生的压缩应力,保持三角带的刚度和弹性,并起着增大三角带截面及与带轮的摩擦接触面,提高传动效率的作用。The cloth covering layer is composed of plain rubber canvas (mainly cotton canvas and polyester-cotton canvas) which is obliquely cut into 45°. Abrasion, erosion, and can increase the stiffness of the V-belt; the stretch rubber layer is composed of rubber with high elasticity and excellent tensile properties, which can withstand the tension of the V-belt when it is running and bending. Tensile stress, and play a buffering protection role for the strength layer; the strength layer is the skeleton of the V-belt, the main types are polyester cord, polyester tempered brown silk, aramid cord and dipped cord fabric, etc., the function is to withstand The tension and other stress generated by the V-belt during the operation process are the main force-bearing parts of the V-belt transmission process; the buffer glue is a polyester tempered brown ribbon core or a V-belt with a cord core around the strength layer. There is a layer of rubber with good adhesion strength to the belt core, that is, the buffer rubber, which plays the role of fixing the belt core and can absorb the dynamic shear stress generated by the frequent deformation of the V-belt during high-speed operation; the compression rubber layer is It is composed of rubber with excellent resistance to bending fatigue, which can withstand the compressive stress generated by the V-belt during operation and bending, maintain the rigidity and elasticity of the V-belt, and increase the cross-section of the V-belt and the frictional contact surface with the pulley. The role of transmission efficiency.
基于此,强力层、底胶对三角带的性能具有至关重要的作用,现有中国专利文献(公开号:CN108189497A)公开了一种高强度V带,包括本体,所述本体由上至下依次设有背胶、缓冲胶和底胶,所述缓冲胶设有线绳,所述本体外表面设有帆布,所述帆布通过粘接层分别与底胶、缓冲胶和背胶相连,所述线绳采用钢化棕丝,本发明的制造工艺,包括原料预处理、帆布处理、线绳处理、包布处理、硫化处理和质检步骤;该V带线绳采用钢化棕丝,钢化棕丝表面能低,很难与橡胶间发生粘合,继而影响线绳粘合强度,从而使三角带整体性能变差;中国专利文献(公开号:CN103966853A)公开了一种聚酯钢化棕丝粘合活化剂及聚酯钢化棕丝的处理工艺,其技术方案为:取丙三醇缩水甘油醚型环氧树脂、封闭型封闭型异氰酸酯、环氧树脂分散剂,放入反应釜中搅拌即形成聚酯钢化棕丝粘合活化剂。将聚酯钢化棕丝置入该粘合活化剂中浸丝,使其表面形成环氧树脂表面层。经过处理得聚酯钢化棕丝再使用二浴浸胶体系所使用的RFL(间苯二酚、甲醛和胶乳的缩合物)粘合剂,然后再采用常规的RFL进行二浴浸渍,可以大大提高其粘合力数值,该文献给出了提高橡胶与线绳之间的粘接强度,该聚酯钢化棕丝经过处理后实质是聚酯钢化棕丝表面树脂层与底胶层形成的粘接,粘合效果改善不是很显著。Based on this, the strength layer and primer play a vital role in the performance of the V-belt. The existing Chinese patent document (publication number: CN108189497A) discloses a high-strength V-belt, including a body, and the body is from top to bottom. A back glue, a buffer glue and a base glue are arranged in sequence, the buffer glue is provided with a cord, the outer surface of the main body is provided with a canvas, and the canvas is respectively connected with the base glue, the buffer glue and the back glue through the adhesive layer. The wire rope adopts tempered brown wire, and the manufacturing process of the present invention includes the steps of raw material pretreatment, canvas treatment, wire rope treatment, cloth wrapping treatment, vulcanization treatment and quality inspection; the V-belt wire rope adopts tempered brown wire, and the surface of the tempered brown wire is The energy is low, it is difficult to bond with the rubber, and then the bonding strength of the cord is affected, so that the overall performance of the V-belt becomes poor; Chinese Patent Literature (Publication No.: CN103966853A) discloses a polyester tempered brown wire bonding activation The technical scheme is: take glycerol glycidyl ether type epoxy resin, closed type blocked isocyanate and epoxy resin dispersant, put them in a reaction kettle and stir to form polyester Tempered brown wire bonding activator. The polyester tempered brown silk is put into the adhesive activator and soaked in the silk to form an epoxy resin surface layer on the surface. After the polyester tempered brown silk is treated, the RFL (resorcinol, formaldehyde and latex condensate) adhesive used in the two-bath dipping system is used, and then the conventional RFL is used for two-bath dipping, which can greatly improve the Its adhesive force value, this document gives the improvement of the bonding strength between the rubber and the rope, the polyester tempered brown wire is essentially the bonding formed by the resin layer on the surface of the polyester tempered brown wire and the primer layer after treatment , the improvement of the adhesion effect is not very significant.
中国专利文献(公开号:CN108189497A)公开了一种用于制造包布三角带压缩层的橡胶组合物及其制备方法,所述橡胶组合物的主要组分包括:天然橡胶、丁苯橡胶、杜仲橡胶、硫化活性剂、润滑剂、防老剂、炭黑、白炭黑、陶土、碳酸钙、增塑剂、增粘剂、促进剂和硫化剂,该文献给出了压缩层材料配方,采用原料较为常规,底胶本身的机械性能被限制,同时与线绳间的粘合强度不是很好,继而制备的三角带性能不是很好。Chinese Patent Document (Publication No.: CN108189497A) discloses a rubber composition for manufacturing a compression layer of a cloth-covered V-belt and a preparation method thereof. The main components of the rubber composition include: natural rubber, styrene-butadiene rubber, Eucommia ulmoides Rubber, vulcanization activators, lubricants, antioxidants, carbon black, silica, clay, calcium carbonate, plasticizers, tackifiers, accelerators and vulcanizing agents, this document gives the formulation of compression layer materials, using raw materials More conventionally, the mechanical properties of the primer itself are limited, and at the same time, the adhesive strength between the primer and the cord is not very good, and then the performance of the prepared V-belt is not very good.
发明内容SUMMARY OF THE INVENTION
本发明的目的在于提供一种高性能三角带及其制备方法,以解决上述背景技术中提出的问题。The purpose of the present invention is to provide a high-performance V-belt and a preparation method thereof, so as to solve the problems raised in the above-mentioned background art.
为实现上述目的,本发明提供如下技术方案:To achieve the above object, the present invention provides the following technical solutions:
一种高性能三角带,所述三角带包括强力层,所述强力层上部设有伸张层,强力层下部设有压缩层,伸张层、压缩层外侧包裹有包布层;A high-performance V-belt, the V-belt comprises a strength layer, an upper part of the strength layer is provided with a stretch layer, a lower part of the strength layer is provided with a compression layer, and the outer sides of the stretch layer and the compression layer are wrapped with a cloth wrapping layer;
所述强力层为表面改性的钢化棕丝;The strength layer is surface-modified tempered brown wire;
所述伸张层包括以下重量份的原料:The stretch layer includes the following raw materials in parts by weight:
氯丁橡胶40-50份、天然橡胶5-15份、聚氨酯树脂10-20份、滑石粉10-20份、芳烃油4-10份、三聚磷酸钠3-9份。40-50 parts of neoprene rubber, 5-15 parts of natural rubber, 10-20 parts of polyurethane resin, 10-20 parts of talc, 4-10 parts of aromatic oil, and 3-9 parts of sodium tripolyphosphate.
作为本发明的进一步方案是:所述表面改性的钢化棕丝制备方法为将钢化棕丝先置于硝酸溶液中浸泡1-2h,随后取出用去离子水冲洗,然后风干,再置于浓度为10%的氢氧化钠溶液中,采用交流电进行表面氧化处理,然后再置于浓度为1.5-2.5mol/L次氯酸钠中反应20-30min,随后采用去离子水冲洗2-3次,然后与渗透剂按照重量比1:3加入到高压反应釜中,反应压力为2-4MPa,反应温度为100-110℃,反应时间为2-5h,反应结束,随后再水洗,再与40-60℃恒温干燥箱中干燥2-3h,即可。As a further scheme of the present invention, the method for preparing the surface-modified tempered brown wire is to first place the tempered brown wire in a nitric acid solution and soak it for 1-2 hours, then take it out and rinse it with deionized water, then air-dry it, and then place it in a concentration of In 10% sodium hydroxide solution, the surface is oxidized by alternating current, and then placed in sodium hypochlorite with a concentration of 1.5-2.5mol/L for 20-30min, and then rinsed with deionized water for 2-3 times, and then with osmotic The agent is added into the high pressure reaction kettle according to the weight ratio of 1:3, the reaction pressure is 2-4MPa, the reaction temperature is 100-110℃, and the reaction time is 2-5h. Dry in a drying box for 2-3 hours.
作为本发明的进一步方案是:所述交流电进行表面氧化时间为1-3h,电流密度为0.2-0.5A/dm2,氧化处理温度为20-30℃。As a further solution of the present invention, the surface oxidation time of the alternating current is 1-3h, the current density is 0.2-0.5A/dm 2 , and the oxidation treatment temperature is 20-30°C.
作为本发明的进一步方案是:所述交流电进行表面氧化时间为2h,电流密度为0.35A/dm2,氧化处理温度为25℃。As a further solution of the present invention, the surface oxidation time of the alternating current is 2h, the current density is 0.35A/dm 2 , and the oxidation treatment temperature is 25°C.
作为本发明的进一步方案是:所述渗透剂的制备方法为将浓度为0.5-1.5mol/L的ZnCl2加入到四口反应瓶中,随后加入冰醋酸调节pH至4.0-5.0,随后以2-5ml/min速度向四口烧瓶中滴加量子点助剂液,边滴加边搅拌,最后加入稀土氯化镧,继续搅拌10-20min,即可。As a further scheme of the present invention: the preparation method of the penetrant is to add ZnCl with a concentration of 0.5-1.5mol/L into the four - neck reaction flask, then add glacial acetic acid to adjust the pH to 4.0-5.0, and then add 2 Add the quantum dot additive solution dropwise to the four-necked flask at a speed of -5ml/min, stir while adding dropwise, and finally add rare earth lanthanum chloride, and continue stirring for 10-20min.
作为本发明的进一步方案是:所述量子点助剂液制备方法为将纳米金刚石按照重量比1:4加入到丙酮溶液中,超声分散20-30min,随后再加入纳米金刚石总量5-9%的二氧化硅微球乳液,继续搅拌20-30min,即可。As a further scheme of the present invention, the preparation method of the quantum dot additive solution is to add nano-diamonds into an acetone solution according to a weight ratio of 1:4, ultrasonically disperse them for 20-30 minutes, and then add 5-9% of the total amount of nano-diamonds. Silica microsphere emulsion, continue to stir for 20-30min.
作为本发明的进一步方案是:所述压缩层包括以下重量份的原料:As a further scheme of the present invention: the compression layer includes the following raw materials in parts by weight:
天然橡胶30-40份、丁苯橡胶20-30份、再生橡胶5-15份、白炭黑4-8份、纤维素纳米晶须3-6份、氧化锡5-10份、硫化剂5-9份、相容剂2-6份、改性碱木素1-4份。30-40 parts of natural rubber, 20-30 parts of styrene-butadiene rubber, 5-15 parts of recycled rubber, 4-8 parts of silica, 3-6 parts of cellulose nanowhisker, 5-10 parts of tin oxide, 5 parts of vulcanizing agent -9 parts, 2-6 parts of compatibilizer, 1-4 parts of modified alkali lignin.
作为本发明的进一步方案是:所述改性碱木素的制备方法为将碱木素加入到磁力搅拌器中,随后再加入到含硅烷的去离子水中,将转速升至200-400r/min,搅拌10-20min,搅拌温度为70-90℃,随后再加入碱木素总量10-20%的海泡石粉,搅拌20-30min,最后加入碱木素总量2-8%的甲基丙烯酸缩水甘油醚,继续搅拌1-2h,反应结束,离心、洗涤、干燥,即可。As a further scheme of the present invention, the preparation method of the modified alkali lignin is to add the alkali lignin into a magnetic stirrer, then add it into deionized water containing silane, and increase the rotation speed to 200-400r/min , stir for 10-20min, the stirring temperature is 70-90 ℃, then add sepiolite powder with 10-20% total alkali lignin, stir for 20-30min, and finally add 2-8% methyl alkali lignin Acrylic glycidyl ether, continue to stir for 1-2h, the reaction is over, centrifuge, wash, and dry.
作为本发明的进一步方案是:所述硫化剂为二硫化四苄基秋兰姆;所述相容剂为噁唑啉型。As a further scheme of the present invention, the vulcanizing agent is tetrabenzylthiuram disulfide; the compatibilizer is oxazoline type.
本发明还提供了一种制备的高性能三角带的方法,包括以下步骤:The present invention also provides a method for preparing a high-performance V-belt, comprising the following steps:
步骤一,将天然橡胶、丁苯橡胶、再生橡胶先进行塑炼80-100s,随后再加入白炭黑、纤维素纳米晶须、氧化锡、改性碱木素、硫化剂、相容剂继续混炼100-200s,然后再进行压延得到压缩层;Step 1, masticate natural rubber, styrene-butadiene rubber and regenerated rubber for 80-100s, then add silica, cellulose nanowhisker, tin oxide, modified alkali lignin, vulcanizing agent, and compatibilizer to continue. Mixing for 100-200s, and then calendering to obtain a compressed layer;
步骤二,将氯丁橡胶、天然橡胶先进行塑炼70-80s,随后再加入聚氨酯树脂、滑石粉、芳烃油、三聚磷酸钠继续混炼100-200s,得到伸张层胶料,备用;In step 2, the chloroprene rubber and natural rubber are first masticated for 70-80s, and then polyurethane resin, talc, aromatic oil, and sodium tripolyphosphate are added to continue mixing for 100-200s to obtain a stretch layer rubber compound for use;
步骤三,将步骤二备用的伸张层胶料加热至熔融,随后将表面改性的钢化棕丝从熔融的伸张层胶料中拉过,至伸张层胶料包裹表面改性的钢化棕丝,形成缓冲线绳,然后通过转动辊将其收卷,形成预用层;Step 3, heating the standby stretch layer sizing material in step 2 to melting, then pulling the surface-modified tempered brown wire from the molten stretch layer sizing material to wrap the surface-modified tempered brown filament in the stretching layer sizing material, The buffer cord is formed, which is then reeled by turning rollers to form a pre-applied layer;
步骤四,将步骤一得到的压缩层粘接于预用层下部,形成基础层,再通过包布层将基础层包裹,形成预用三角带,将预用三角带放入模具中并送入硫化罐中进行硫化,随后再切割、打磨,得到成品,再检验、包装、储存,即得本发明的高性能三角带。Step 4: Adhere the compression layer obtained in step 1 to the lower part of the pre-applied layer to form a base layer, then wrap the base layer through a cloth wrapping layer to form a pre-used V-belt, put the pre-used V-belt into the mold and send it into the Vulcanization is carried out in a vulcanization tank, and then cutting and grinding are performed to obtain a finished product, which is then inspected, packaged and stored to obtain the high-performance V-belt of the present invention.
与现有技术相比,本发明具有如下的有益效果:Compared with the prior art, the present invention has the following beneficial effects:
(1)本发明采用钢化棕丝作为强力层材料,提高三角带在运转过程中所产生的拉伸等应力,同时优化底胶材料配方,提高材料的物理机械性能以及耐弯曲、耐疲劳性能,优化严格控制三角胶生产工艺,提高材料的工艺效率,进而保证产品的质量和品质。(1) The present invention adopts tempered brown wire as the material of the strength layer, improves the stress such as the tensile force generated by the V-belt during the operation, optimizes the formula of the primer material, and improves the physical and mechanical properties of the material, as well as the resistance to bending and fatigue, Optimize and strictly control the apex production process, improve the process efficiency of materials, and then ensure the quality and quality of products.
(2)本发明的钢化棕丝先置于硝酸溶液起到活化效果,提高反应能,然后在交流电条件下进行表面氧化处理,使钢化棕丝表面微观结构变的疏松,再经过次氯酸钠处理,表面产生细纹以及微孔,然后与渗透剂混合加入到高压反应釜中,渗透剂在细纹和微孔中更易渗透,渗透剂以ZnCl2与量子点助剂液、稀土氯化镧在冰醋酸调节pH条件下制得,量子点助剂液、稀土氯化镧激发ZnCl2进行渗透处理,提高渗透效率,再后续与底胶贴合过程中,钢化棕丝经过高温处理,表面有机化合物蒸发,留下的微孔及疏松结构与底胶材料进行融合,冷却后形成一体结构,同时底胶中的纤维素纳米晶须外形似玉米须,穿插在钢化棕丝孔隙中,极大的提高二者间的粘合强度,进而使三角胶整体得到显著改善。(2) the tempered brown wire of the present invention is first placed in a nitric acid solution to play an activation effect, and the reaction energy is improved, and then the surface oxidation treatment is carried out under the alternating current condition, so that the surface microstructure of the tempered brown wire becomes loose, and then treated with sodium hypochlorite, the surface The fine lines and micropores are generated, and then mixed with the penetrant and added to the high pressure reaction kettle. The penetrant is easier to penetrate in the fine lines and micropores. The penetrant is composed of ZnCl 2 and quantum dot additive solution, rare earth lanthanum chloride in glacial acetic acid. It is prepared under the condition of adjusting pH. The quantum dot additive solution and rare earth lanthanum chloride stimulate ZnCl 2 to infiltrate to improve the infiltration efficiency. In the subsequent lamination process with the primer, the tempered brown wire undergoes high temperature treatment, and the surface organic compounds evaporate. The remaining micropores and loose structure are fused with the primer material, and form an integrated structure after cooling. At the same time, the cellulose nanowhiskers in the primer are shaped like corn silk and are interspersed in the pores of the tempered brown silk, which greatly improves the two. The bonding strength between the apex is significantly improved.
(3)本发明底胶制备中以天然橡胶、丁苯橡胶、再生橡胶作为基料,再添加辅料助剂增强底胶的性能,添加的纤维素纳米晶须表面羟基丰富,同时具有高模量、高长径比,能够将底胶中原料有序化结合,提高原料间的紧密性,继而提高材料的机械性能以及耐弯曲疲劳性能,添加的填料助剂氧化锡为网状结构,与维素纳米晶须起到协同作用,有序化的与维素纳米晶须结合,进而使基体被网状有序化包覆,从而使结构体系一体化,进而底胶结构更牢固,添加的碱木素常规下在混凝土中起到减水效应,本发明将其改性应用在底胶材料中,与氧化锡等原料形成交叉的网络结构,进而增强底胶的机械等性能。(3) In the preparation of the primer of the present invention, natural rubber, styrene-butadiene rubber, and regenerated rubber are used as base materials, and auxiliary materials are added to enhance the performance of the primer. The surface of the added cellulose nanowhiskers is rich in hydroxyl groups and has high modulus. , high aspect ratio, can combine the raw materials in the primer in an orderly manner, improve the tightness between the raw materials, and then improve the mechanical properties and bending fatigue resistance of the material. The elemental nanowhiskers play a synergistic role, orderly combined with the cellulose nanowhiskers, so that the matrix is covered by a network orderly, so that the structural system is integrated, and the primer structure is stronger, and the added alkali Conventionally, lignin plays a water-reducing effect in concrete. In the present invention, it is modified and applied to primer materials to form a crossed network structure with raw materials such as tin oxide, thereby enhancing the mechanical and other properties of the primer.
具体实施方式Detailed ways
下面结合具体实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
实施例1:Example 1:
本实施例的一种高性能三角带,所述三角带包括强力层,所述强力层上部设有伸张层,强力层下部设有压缩层,伸张层、压缩层外侧包裹有包布层;A high-performance V-belt of this embodiment, the V-belt includes a strength layer, an upper portion of the strength layer is provided with a stretch layer, a lower portion of the strength layer is provided with a compression layer, and the outer side of the stretch layer and the compression layer is wrapped with a cloth layer;
所述强力层为表面改性的钢化棕丝;The strength layer is surface-modified tempered brown wire;
所述伸张层包括以下重量份的原料:The stretch layer includes the following raw materials in parts by weight:
氯丁橡胶40份、天然橡胶5份、聚氨酯树脂10份、滑石粉10份、芳烃油4份、三聚磷酸钠3份。40 parts of neoprene rubber, 5 parts of natural rubber, 10 parts of polyurethane resin, 10 parts of talc, 4 parts of aromatic oil, and 3 parts of sodium tripolyphosphate.
本实施例的表面改性的钢化棕丝制备方法为将钢化棕丝先置于硝酸溶液中浸泡1h,随后取出用去离子水冲洗,然后风干,再置于浓度为10%的氢氧化钠溶液中,采用交流电进行表面氧化处理,然后再置于浓度为1.5mol/L次氯酸钠中反应20min,随后采用去离子水冲洗2次,然后与渗透剂按照重量比1:3加入到高压反应釜中,反应压力为2MPa,反应温度为100℃,反应时间为2h,反应结束,随后再水洗,再与40℃恒温干燥箱中干燥2h,即可。The preparation method of the surface-modified tempered brown wire in this embodiment is to first soak the tempered brown wire in a nitric acid solution for 1 hour, then take it out, rinse it with deionized water, air dry it, and then place it in a 10% sodium hydroxide solution , using alternating current to carry out surface oxidation treatment, and then placing it in a concentration of 1.5mol/L sodium hypochlorite for 20min, then using deionized water to rinse 2 times, and then adding the penetrant to the autoclave in a weight ratio of 1:3, The reaction pressure was 2MPa, the reaction temperature was 100°C, and the reaction time was 2h. After the reaction was completed, it was washed with water and dried in a constant temperature drying oven at 40°C for 2h.
本实施例的交流电进行表面氧化时间为1h,电流密度为0.2A/dm2,氧化处理温度为20℃。In this embodiment, the time for surface oxidation by alternating current is 1 h, the current density is 0.2 A/dm 2 , and the oxidation treatment temperature is 20°C.
本实施例的渗透剂的制备方法为将浓度为0.5mol/L的ZnCl2加入到四口反应瓶中,随后加入冰醋酸调节pH至4.0,随后以2ml/min速度向四口烧瓶中滴加量子点助剂液,边滴加边搅拌,最后加入稀土氯化镧,继续搅拌10min,即可。The preparation method of the penetrant of the present embodiment is to add ZnCl with a concentration of 0.5mol/L into the four - necked reaction flask, then add glacial acetic acid to adjust the pH to 4.0, and then dropwise add to the four-necked flask at a speed of 2ml/min The quantum dot additive solution is added dropwise while stirring, and finally the rare earth lanthanum chloride is added, and the stirring is continued for 10 minutes.
本实施例的量子点助剂液制备方法为将纳米金刚石按照重量比1:4加入到丙酮溶液中,超声分散20min,随后再加入纳米金刚石总量5%的二氧化硅微球乳液,继续搅拌20min,即可。The preparation method of the quantum dot additive solution in this embodiment is to add nano-diamonds into an acetone solution at a weight ratio of 1:4, ultrasonically disperse for 20 minutes, then add a silica microsphere emulsion with 5% of the total amount of nano-diamonds, and continue stirring. 20min is enough.
本实施例的压缩层包括以下重量份的原料:The compression layer of this embodiment includes the following raw materials in parts by weight:
天然橡胶30份、丁苯橡胶20份、再生橡胶5份、白炭黑4份、纤维素纳米晶须3份、氧化锡5份、硫化剂5份、相容剂2份、改性碱木素1份。30 parts of natural rubber, 20 parts of styrene-butadiene rubber, 5 parts of recycled rubber, 4 parts of white carbon black, 3 parts of cellulose nanowhisker, 5 parts of tin oxide, 5 parts of vulcanizing agent, 2 parts of compatibilizer, modified alkali wood 1 serving.
本实施例的改性碱木素的制备方法为将碱木素加入到磁力搅拌器中,随后再加入到含硅烷的去离子水中,将转速升至200r/min,搅拌10min,搅拌温度为70℃,随后再加入碱木素总量10%的海泡石粉,搅拌20min,最后加入碱木素总量2%的甲基丙烯酸缩水甘油醚,继续搅拌1h,反应结束,离心、洗涤、干燥,即可。The preparation method of the modified alkali lignin of the present embodiment is to add the alkali lignin into a magnetic stirrer, then add it into deionized water containing silane, increase the rotation speed to 200r/min, stir for 10min, and the stirring temperature is 70 ℃, then add sepiolite powder with 10% total alkali lignin, stir for 20min, finally add 2% total alkali lignin glycidyl methacrylate, continue stirring for 1h, the reaction is over, centrifuge, wash, dry, That's it.
本实施例的硫化剂为二硫化四苄基秋兰姆;所述相容剂为噁唑啉型。The vulcanizing agent in this embodiment is tetrabenzylthiuram disulfide; the compatibilizer is oxazoline type.
本实施例的一种制备的高性能三角带的方法,包括以下步骤:A method for preparing a high-performance V-belt of the present embodiment includes the following steps:
步骤一,将天然橡胶、丁苯橡胶、再生橡胶先进行塑炼80s,随后再加入白炭黑、纤维素纳米晶须、氧化锡、改性碱木素、硫化剂、相容剂继续混炼100s,然后再进行压延得到压缩层;Step 1: First masticate natural rubber, styrene-butadiene rubber and regenerated rubber for 80s, then add silica, cellulose nanowhisker, tin oxide, modified alkali lignin, vulcanizing agent, and compatibilizer to continue mixing. 100s, and then calendering to obtain a compression layer;
步骤二,将氯丁橡胶、天然橡胶先进行塑炼70s,随后再加入聚氨酯树脂、滑石粉、芳烃油、三聚磷酸钠继续混炼100s,得到伸张层胶料,备用;Step 2, plasticizing neoprene and natural rubber for 70s, then adding polyurethane resin, talc, aromatic oil, and sodium tripolyphosphate and continuing to mix for 100s to obtain a stretch layer rubber, which is used for later use;
步骤三,将步骤二备用的伸张层胶料加热至熔融,随后将表面改性的钢化棕丝从熔融的伸张层胶料中拉过,至伸张层胶料包裹表面改性的钢化棕丝,形成缓冲线绳,然后通过转动辊将其收卷,形成预用层;Step 3, heating the standby stretch layer sizing material in step 2 to melting, then pulling the surface-modified tempered brown wire from the molten stretch layer sizing material to wrap the surface-modified tempered brown filament in the stretching layer sizing material, The buffer cord is formed, which is then reeled by turning rollers to form a pre-applied layer;
步骤四,将步骤一得到的压缩层粘接于预用层下部,形成基础层,再通过包布层将基础层包裹,形成预用三角带,将预用三角带放入模具中并送入硫化罐中进行硫化,随后再切割、打磨,得到成品,再检验、包装、储存,即得本发明的高性能三角带。Step 4: Adhere the compression layer obtained in step 1 to the lower part of the pre-applied layer to form a base layer, then wrap the base layer through a cloth wrapping layer to form a pre-used V-belt, put the pre-used V-belt into the mold and send it into the Vulcanization is carried out in a vulcanization tank, and then cutting and grinding are performed to obtain a finished product, which is then inspected, packaged and stored to obtain the high-performance V-belt of the present invention.
实施例2:Example 2:
本实施例的一种高性能三角带,所述三角带包括强力层,所述强力层上部设有伸张层,强力层下部设有压缩层,伸张层、压缩层外侧包裹有包布层;A high-performance V-belt of this embodiment, the V-belt includes a strength layer, an upper portion of the strength layer is provided with a stretch layer, a lower portion of the strength layer is provided with a compression layer, and the outer side of the stretch layer and the compression layer is wrapped with a cloth layer;
所述强力层为表面改性的钢化棕丝;The strength layer is surface-modified tempered brown wire;
所述伸张层包括以下重量份的原料:The stretch layer includes the following raw materials in parts by weight:
氯丁橡胶50份、天然橡胶15份、聚氨酯树脂20份、滑石粉20份、芳烃油10份、三聚磷酸钠9份。50 parts of neoprene rubber, 15 parts of natural rubber, 20 parts of polyurethane resin, 20 parts of talc, 10 parts of aromatic oil, and 9 parts of sodium tripolyphosphate.
本实施例的表面改性的钢化棕丝制备方法为将钢化棕丝先置于硝酸溶液中浸泡2h,随后取出用去离子水冲洗,然后风干,再置于浓度为10%的氢氧化钠溶液中,采用交流电进行表面氧化处理,然后再置于浓度为2.5mol/L次氯酸钠中反应20-30min,随后采用去离子水冲洗3次,然后与渗透剂按照重量比1:3加入到高压反应釜中,反应压力为4MPa,反应温度为110℃,反应时间为5h,反应结束,随后再水洗,再与60℃恒温干燥箱中干燥3h,即可。The preparation method of the surface-modified tempered brown wire in this embodiment is to soak the tempered brown wire in a nitric acid solution for 2 hours, then take it out, rinse it with deionized water, air dry it, and place it in a sodium hydroxide solution with a concentration of 10%. , using alternating current for surface oxidation treatment, and then placing it in a concentration of 2.5mol/L sodium hypochlorite to react for 20-30min, then using deionized water to rinse 3 times, and then adding the penetrant to the autoclave at a weight ratio of 1:3 , the reaction pressure is 4MPa, the reaction temperature is 110°C, and the reaction time is 5h, the reaction is over, then washed with water, and then dried in a constant temperature drying oven at 60°C for 3h.
本实施例的交流电进行表面氧化时间为3h,电流密度为0.5A/dm2,氧化处理温度为30℃。In this embodiment, the time for surface oxidation by alternating current is 3h, the current density is 0.5A/dm 2 , and the oxidation treatment temperature is 30°C.
本实施例的渗透剂的制备方法为将浓度为1.5mol/L的ZnCl2加入到四口反应瓶中,随后加入冰醋酸调节pH至5.0,随后以5ml/min速度向四口烧瓶中滴加量子点助剂液,边滴加边搅拌,最后加入稀土氯化镧,继续搅拌20min,即可。The preparation method of the penetrant of the present embodiment is to add ZnCl with a concentration of 1.5mol /L into the four-necked reaction flask, then add glacial acetic acid to adjust the pH to 5.0, and then dropwise add to the four-necked flask at a speed of 5ml/min The quantum dot additive solution is added dropwise while stirring, and finally the rare earth lanthanum chloride is added, and the stirring is continued for 20 minutes.
本实施例的量子点助剂液制备方法为将纳米金刚石按照重量比1:4加入到丙酮溶液中,超声分散30min,随后再加入纳米金刚石总量9%的二氧化硅微球乳液,继续搅拌30min,即可。The preparation method of the quantum dot additive solution in this embodiment is to add nano-diamonds into an acetone solution at a weight ratio of 1:4, ultrasonically disperse for 30 minutes, and then add a silica microsphere emulsion containing 9% of the total amount of nano-diamonds, and continue stirring. 30min is enough.
本实施例的压缩层包括以下重量份的原料:The compression layer of this embodiment includes the following raw materials in parts by weight:
天然橡胶40份、丁苯橡胶30份、再生橡胶15份、白炭黑8份、纤维素纳米晶须6份、氧化锡10份、硫化剂9份、相容剂6份、改性碱木素4份。40 parts of natural rubber, 30 parts of styrene-butadiene rubber, 15 parts of recycled rubber, 8 parts of white carbon black, 6 parts of cellulose nanowhisker, 10 parts of tin oxide, 9 parts of vulcanizing agent, 6 parts of compatibilizer, modified alkali wood 4 servings.
本实施例的改性碱木素的制备方法为将碱木素加入到磁力搅拌器中,随后再加入到含硅烷的去离子水中,将转速升至400r/min,搅拌20min,搅拌温度为90℃,随后再加入碱木素总量20%的海泡石粉,搅拌30min,最后加入碱木素总量8%的甲基丙烯酸缩水甘油醚,继续搅拌2h,反应结束,离心、洗涤、干燥,即可。The preparation method of the modified alkali lignin of the present embodiment is to add the alkali lignin to a magnetic stirrer, then add it to deionized water containing silane, increase the rotation speed to 400r/min, stir for 20min, and the stirring temperature is 90 ℃, then add sepiolite powder with 20% total amount of alkali lignin, stir for 30min, finally add glycidyl methacrylate with 8% total amount of alkali lignin, continue stirring for 2h, the reaction is over, centrifuge, wash, dry, That's it.
本实施例的硫化剂为二硫化四苄基秋兰姆;所述相容剂为噁唑啉型。The vulcanizing agent in this embodiment is tetrabenzylthiuram disulfide; the compatibilizer is oxazoline type.
本实施例的一种制备的高性能三角带的方法,包括以下步骤:A method for preparing a high-performance V-belt of the present embodiment includes the following steps:
步骤一,将天然橡胶、丁苯橡胶、再生橡胶先进行塑炼100s,随后再加入白炭黑、纤维素纳米晶须、氧化锡、改性碱木素、硫化剂、相容剂继续混炼200s,然后再进行压延得到压缩层;Step 1, masticate natural rubber, styrene-butadiene rubber, and regenerated rubber for 100s, then add silica, cellulose nanowhisker, tin oxide, modified alkali lignin, vulcanizing agent, and compatibilizer to continue mixing. 200s, and then calendering to obtain a compression layer;
步骤二,将氯丁橡胶、天然橡胶先进行塑炼80s,随后再加入聚氨酯树脂、滑石粉、芳烃油、三聚磷酸钠继续混炼200s,得到伸张层胶料,备用;In step 2, the chloroprene rubber and natural rubber are first masticated for 80s, and then polyurethane resin, talc, aromatic oil, and sodium tripolyphosphate are added to continue mixing for 200s to obtain a stretch layer rubber compound, which is used for later use;
步骤三,将步骤二备用的伸张层胶料加热至熔融,随后将表面改性的钢化棕丝从熔融的伸张层胶料中拉过,至伸张层胶料包裹表面改性的钢化棕丝,形成缓冲线绳,然后通过转动辊将其收卷,形成预用层;Step 3, heating the standby stretch layer sizing material in step 2 to melting, then pulling the surface-modified tempered brown wire from the molten stretch layer sizing material to wrap the surface-modified tempered brown filament in the stretching layer sizing material, The buffer cord is formed, which is then reeled by turning rollers to form a pre-applied layer;
步骤四,将步骤一得到的压缩层粘接于预用层下部,形成基础层,再通过包布层将基础层包裹,形成预用三角带,将预用三角带放入模具中并送入硫化罐中进行硫化,随后再切割、打磨,得到成品,再检验、包装、储存,即得本发明的高性能三角带。Step 4: Adhere the compression layer obtained in step 1 to the lower part of the pre-applied layer to form a base layer, then wrap the base layer through a cloth wrapping layer to form a pre-used V-belt, put the pre-used V-belt into the mold and send it into the Vulcanization is carried out in a vulcanization tank, and then cutting and grinding are performed to obtain a finished product, which is then inspected, packaged and stored to obtain the high-performance V-belt of the present invention.
实施例3:Example 3:
本实施例的一种高性能三角带,所述三角带包括强力层,所述强力层上部设有伸张层,强力层下部设有压缩层,伸张层、压缩层外侧包裹有包布层;A high-performance V-belt of this embodiment, the V-belt includes a strength layer, an upper portion of the strength layer is provided with a stretch layer, a lower portion of the strength layer is provided with a compression layer, and the outer side of the stretch layer and the compression layer is wrapped with a cloth layer;
所述强力层为表面改性的钢化棕丝;The strength layer is surface-modified tempered brown wire;
所述伸张层包括以下重量份的原料:The stretch layer includes the following raw materials in parts by weight:
氯丁橡胶45份、天然橡胶10份、聚氨酯树脂15份、滑石粉15份、芳烃油7份、三聚磷酸钠4.5份。45 parts of neoprene rubber, 10 parts of natural rubber, 15 parts of polyurethane resin, 15 parts of talc, 7 parts of aromatic oil, and 4.5 parts of sodium tripolyphosphate.
本实施例的表面改性的钢化棕丝制备方法为将钢化棕丝先置于硝酸溶液中浸泡1.5h,随后取出用去离子水冲洗,然后风干,再置于浓度为10%的氢氧化钠溶液中,采用交流电进行表面氧化处理,然后再置于浓度为2mol/L次氯酸钠中反应25min,随后采用去离子水冲洗3次,然后与渗透剂按照重量比1:3加入到高压反应釜中,反应压力为3MPa,反应温度为105℃,反应时间为3.5h,反应结束,随后再水洗,再与50℃恒温干燥箱中干燥2.5h,即可。The preparation method of the surface-modified tempered brown wire in this embodiment is to first soak the tempered brown wire in a nitric acid solution for 1.5 hours, then take it out and rinse it with deionized water, then air dry, and then place it in 10% sodium hydroxide solution In the solution, use alternating current for surface oxidation treatment, and then place it in a concentration of 2mol/L sodium hypochlorite to react for 25min, then use deionized water to rinse 3 times, and then add the penetrant to the autoclave in a weight ratio of 1:3, The reaction pressure was 3MPa, the reaction temperature was 105°C, and the reaction time was 3.5h. After the reaction was over, it was washed with water and dried in a constant temperature drying oven at 50°C for 2.5h.
本实施例的交流电进行表面氧化时间为2h,电流密度为0.35A/dm2,氧化处理温度为25℃。In this embodiment, the time for surface oxidation by alternating current is 2h, the current density is 0.35A/dm 2 , and the oxidation treatment temperature is 25°C.
本实施例的渗透剂的制备方法为将浓度为1.0mol/L的ZnCl2加入到四口反应瓶中,随后加入冰醋酸调节pH至4.5,随后以3.5ml/min速度向四口烧瓶中滴加量子点助剂液,边滴加边搅拌,最后加入稀土氯化镧,继续搅拌15min,即可。The preparation method of the penetrant of the present embodiment is to add ZnCl with a concentration of 1.0mol/L into the four - necked reaction flask, then add glacial acetic acid to adjust the pH to 4.5, and then dropwise into the four-necked flask at a speed of 3.5ml/min Add the quantum dot additive solution, add dropwise while stirring, and finally add rare earth lanthanum chloride and continue stirring for 15min.
本实施例的量子点助剂液制备方法为将纳米金刚石按照重量比1:4加入到丙酮溶液中,超声分散25min,随后再加入纳米金刚石总量7%的二氧化硅微球乳液,继续搅拌25min,即可。The preparation method of the quantum dot additive solution in this embodiment is to add the nano-diamonds into the acetone solution according to the weight ratio of 1:4, ultrasonically disperse for 25 minutes, then add the silica microsphere emulsion with 7% of the total amount of nano-diamonds, and continue stirring. 25min is enough.
本实施例的压缩层包括以下重量份的原料:The compression layer of this embodiment includes the following raw materials in parts by weight:
天然橡胶35份、丁苯橡胶25份、再生橡胶10份、白炭黑6份、纤维素纳米晶须4.5份、氧化锡7.5份、硫化剂7份、相容剂4份、改性碱木素2.5份。35 parts of natural rubber, 25 parts of styrene-butadiene rubber, 10 parts of recycled rubber, 6 parts of white carbon black, 4.5 parts of cellulose nanowhisker, 7.5 parts of tin oxide, 7 parts of vulcanizing agent, 4 parts of compatibilizer, modified alkali wood 2.5 servings of vegetarian food.
本实施例的改性碱木素的制备方法为将碱木素加入到磁力搅拌器中,随后再加入到含硅烷的去离子水中,将转速升至300r/min,搅拌15min,搅拌温度为80℃,随后再加入碱木素总量15%的海泡石粉,搅拌25min,最后加入碱木素总量5%的甲基丙烯酸缩水甘油醚,继续搅拌1.5h,反应结束,离心、洗涤、干燥,即可。The preparation method of the modified alkali lignin of the present embodiment is to add the alkali lignin to a magnetic stirrer, then add it to deionized water containing silane, increase the rotation speed to 300r/min, stir for 15min, and the stirring temperature is 80 ℃, then add sepiolite powder with 15% total alkali lignin, stir for 25min, finally add 5% total alkali lignin glycidyl methacrylate, continue stirring for 1.5h, the reaction is over, centrifuge, wash, dry , you can.
本实施例的硫化剂为二硫化四苄基秋兰姆;所述相容剂为噁唑啉型。The vulcanizing agent in this embodiment is tetrabenzylthiuram disulfide; the compatibilizer is oxazoline type.
本实施例的一种制备的高性能三角带的方法,包括以下步骤:A method for preparing a high-performance V-belt of the present embodiment includes the following steps:
步骤一,将天然橡胶、丁苯橡胶、再生橡胶先进行塑炼90s,随后再加入白炭黑、纤维素纳米晶须、氧化锡、改性碱木素、硫化剂、相容剂继续混炼150s,然后再进行压延得到压缩层;Step 1: First masticate natural rubber, styrene-butadiene rubber and regenerated rubber for 90s, then add silica, cellulose nanowhisker, tin oxide, modified alkali lignin, vulcanizing agent, and compatibilizer to continue mixing. 150s, and then calendering to obtain a compression layer;
步骤二,将氯丁橡胶、天然橡胶先进行塑炼75s,随后再加入聚氨酯树脂、滑石粉、芳烃油、三聚磷酸钠继续混炼150s,得到伸张层胶料,备用;In step 2, chloroprene rubber and natural rubber are first masticated for 75s, and then polyurethane resin, talcum powder, aromatic oil, and sodium tripolyphosphate are added for continuous mixing for 150s to obtain a stretch layer rubber, which is used for later use;
步骤三,将步骤二备用的伸张层胶料加热至熔融,随后将表面改性的钢化棕丝从熔融的伸张层胶料中拉过,至伸张层胶料包裹表面改性的钢化棕丝,形成缓冲线绳,然后通过转动辊将其收卷,形成预用层;Step 3, heating the standby stretch layer sizing material in step 2 to melting, then pulling the surface-modified tempered brown wire from the molten stretch layer sizing material to wrap the surface-modified tempered brown filament in the stretching layer sizing material, The buffer cord is formed, which is then reeled by turning rollers to form a pre-applied layer;
步骤四,将步骤一得到的压缩层粘接于预用层下部,形成基础层,再通过包布层将基础层包裹,形成预用三角带,将预用三角带放入模具中并送入硫化罐中进行硫化,随后再切割、打磨,得到成品,再检验、包装、储存,即得本发明的高性能三角带。Step 4: Adhere the compression layer obtained in step 1 to the lower part of the pre-applied layer to form a base layer, then wrap the base layer through a cloth wrapping layer to form a pre-used V-belt, put the pre-used V-belt into the mold and send it into the Vulcanization is carried out in a vulcanization tank, and then cutting and grinding are performed to obtain a finished product, which is then inspected, packaged and stored to obtain the high-performance V-belt of the present invention.
对比例1:Comparative Example 1:
采用中国专利文献(公开号:CN108189497A)公开了一种高强度V带中实施例1的V带进行测试。The V-belt of Example 1 in a high-strength V-belt disclosed in Chinese Patent Document (Publication No.: CN108189497A) was used for testing.
对比例2:Comparative Example 2:
采用中国专利文献(公开号:CN103966853A)公开了一种聚酯钢化棕丝粘合活化剂及聚酯钢化棕丝的处理工艺中的钢化棕丝代替实施例3的表面改性的钢化棕丝。The Chinese patent document (publication number: CN103966853A) discloses a polyester tempered brown wire bonding activator and the tempered brown wire in the treatment process of the polyester tempered brown wire to replace the surface-modified tempered brown wire of Example 3.
对比例3:Comparative Example 3:
与实施例3表面改性的钢化棕丝制备方法中唯一不同是未采用交流电进行表面氧化处理。The only difference from the preparation method of the surface-modified tempered brown silk in Example 3 is that the surface oxidation treatment is not carried out with alternating current.
对比例4:Comparative Example 4:
采用中国专利文献(公开号:CN108189497A)公开了一种用于制造包布三角带压缩层的橡胶组合物及其制备方法中材料作为本发明压缩层。The Chinese patent document (Publication No.: CN108189497A) discloses a rubber composition for manufacturing a compression layer of a cloth-covered V-belt and the material in the preparation method thereof as the compression layer of the present invention.
对比例5:Comparative Example 5:
与实施例3材料及制备工艺完全相同,唯一不同是压缩层中未添加纤维素纳米晶须。The material and preparation process are exactly the same as those in Example 3, the only difference is that no cellulose nanowhiskers are added to the compression layer.
对比例6:Comparative Example 6:
与实施例3材料及制备工艺完全相同,唯一不同是压缩层中未添加改性碱木素。The material and preparation process are exactly the same as those in Example 3, the only difference is that no modified alkali lignin is added to the compression layer.
对比例7:Comparative Example 7:
与实施例3材料及制备工艺完全相同,唯一不同是碱木素改性中未添加海泡石粉。The material and preparation process are exactly the same as those in Example 3, the only difference is that no sepiolite powder is added in the modification of alkali lignin.
线绳粘合强度按照GB/T 3688-1983《三角带线绳与橡胶粘合强度实验方法》测试标准进行测试;The bond strength of the cord is tested according to the test standard of GB/T 3688-1983 "Test Method for Bonding Strength of V-belt Cord and Rubber";
测试方法如下:The test method is as follows:
将试样放在支承器上,使剥漏的中心线绳由支承器开口内下垂,将其线绳夹入下夹持器中,调整试样在支承器中的位置,使线绳位于开口宽度中央,启动试验机,对线绳进行拉拨,直至完全抽出,测出对试样施加抽出力,即为线绳粘合强度。Put the sample on the support, let the stripped center wire sag from the opening of the support, clamp the wire into the lower holder, adjust the position of the sample in the support, so that the wire is in the opening At the center of the width, start the testing machine, pull the cord until it is completely pulled out, and measure the pull-out force applied to the sample, which is the bond strength of the cord.
线绳粘合强度测试结果如下:The rope bond strength test results are as follows:
从实施例3及对比例1-3中得出,本发明实施例3相对于对比例1,线绳粘合强度提高了12KN.m-1,改善率为44.44%,相对于对比例2,线绳粘合强度提高了8KN.m-1,改善率为25.80%,可知采用本发明改性过的钢化棕丝可显著提高线绳粘合强度。From Example 3 and Comparative Examples 1-3, it can be concluded that compared with Comparative Example 1, Example 3 of the present invention has an increase of 12KN.m -1 in the bonding strength of the cord, and the improvement rate is 44.44%. Compared with Comparative Example 2, The bonding strength of the wire rope is increased by 8KN.m -1 , and the improvement rate is 25.80%. It can be seen that the use of the modified tempered brown wire of the present invention can significantly improve the bonding strength of the wire rope.
此外本发明还探究了三角带的耐疲劳寿命、拉伸强度。In addition, the present invention also explores the fatigue life and tensile strength of the V-belt.
耐疲劳寿命测试方法,将试样裁剪至长度为100mm,宽度为20mm,厚度为4mm,然后置于疲劳试验机下进行测试,记录起初测试时间A,当三角带出现裂纹等异常现象,记录终止时间B,耐疲劳寿命=B-A。Fatigue resistance life test method, cut the sample to a length of 100mm, a width of 20mm and a thickness of 4mm, and then put it under the fatigue testing machine for testing, record the initial test time A, when the triangle belt has cracks and other abnormal phenomena, the recording will be terminated Time B, fatigue life = B-A.
拉伸强度采用三角带拉伸强度试验机对其进行性能测试。The tensile strength was tested by a V-belt tensile strength testing machine.
测试结果如下:The test results are as follows:
本发明的实施例3相对于对比例4,拉伸强度提高了4KN,改善率为80%,同时添加的改性碱木素使拉伸强度提高了3KN,添加的纤维素纳米晶须提高了2KN。Compared with Comparative Example 4, the tensile strength of Example 3 of the present invention increased by 4KN, and the improvement rate was 80%. At the same time, the added modified alkali lignin increased the tensile strength by 3KN, and the added cellulose nanowhiskers increased 2KN.
压缩层对三角带性能有很大影响,因此本发明还探究了压缩层橡胶材料的性能。The compression layer has a great influence on the performance of the V-belt, so the present invention also explores the performance of the rubber material of the compression layer.
实施例1-3及对比例4-7得到压缩层性能测试结果如下Embodiment 1-3 and comparative example 4-7 obtain compression layer performance test result as follows
从对比例3及对比例4-7中得出,本发明实施例3相对于对比例4,拉伸强度提高了5.0MPa,改善率为42.02%;拉断伸长率提高了103MPa,改善率为26.48%;DIN磨耗体积降低了26mm3,改善率为14.61%;同时添加的改性碱木素拉断伸长率提高了71MPa,拉伸强度提高了3.8MPa,机械性能均得到显著改善。It can be concluded from Comparative Example 3 and Comparative Examples 4-7 that, compared with Comparative Example 4, the tensile strength of Example 3 of the present invention is increased by 5.0MPa, and the improvement rate is 42.02%; the elongation at break is increased by 103MPa, and the improvement rate is 42.02%. The DIN wear volume decreased by 26mm 3 , and the improvement rate was 14.61%; the elongation at break of the modified alkali lignin added at the same time increased by 71MPa, the tensile strength increased by 3.8MPa, and the mechanical properties were significantly improved.
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and scope of the equivalents of , are included in the present invention.
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.
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