WO2022087960A1 - 一种pvc板的制备方法及使用该pvc板的塑胶地板 - Google Patents

一种pvc板的制备方法及使用该pvc板的塑胶地板 Download PDF

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WO2022087960A1
WO2022087960A1 PCT/CN2020/124810 CN2020124810W WO2022087960A1 WO 2022087960 A1 WO2022087960 A1 WO 2022087960A1 CN 2020124810 W CN2020124810 W CN 2020124810W WO 2022087960 A1 WO2022087960 A1 WO 2022087960A1
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material layer
layer
preparation
bottom material
powder
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PCT/CN2020/124810
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English (en)
French (fr)
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杜江凌
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东莞自圣装饰材料有限公司
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate

Definitions

  • the invention relates to the field of plastic floors, in particular to a preparation method of a PVC board and a plastic floor using the PVC board.
  • plastic flooring has been more and more widely used in daily life. Compared with ordinary flooring, plastic flooring has the advantages of green recyclability, light weight, corrosion resistance, mildew resistance, insect resistance and simple construction.
  • the technical problem of the existing plastic floor is that the increase of the thickness of the plastic floor will lead to insufficient toughness and brittle fracture, which limits the thickness of the plastic floor to a large extent.
  • the plastic floor with larger thickness has the following advantages: 1. The pressure that the surface of the plastic floor can withstand increases, and it is not easy to generate depression; 2. The shock absorption performance, thermal insulation performance and sound insulation performance of the plastic floor are improved.
  • the present invention provides a method for preparing a PVC board and a plastic floor using the same.
  • the PVC board prepared by the method for preparing a PVC board provided by the present invention has good toughness and has Better strength, the plastic floor using this PVC board can increase the thickness.
  • a PVC board is prepared from the following raw materials: PVC powder with an average degree of polymerization of 800-1000, plasticizer, stabilizer, rubber and stone powder.
  • the stabilizer described in this application can adopt the stabilizer disclosed in the prior art and applied to the preparation of PVC boards.
  • calcium-zinc stabilizers and/or organotin stabilizers can be selected as stabilizers.
  • Stabilizers can prevent the decomposition of thermoplastic resins and ensure the fluidity of materials.
  • DOTP dioctyl terephthalate
  • a preparation method of a PVC board comprising:
  • thermoplastic (4) placing the mixture in an internal mixer and mixing until the temperature of the mixture rises to 140-180 ° C, to obtain a thermoplastic
  • the mixture is placed in an internal mixer for internal mixing, and the temperature in the internal mixer is raised to 140-180 ° C, and the ideal plasticity is obtained in a relatively short period of time, making the mixture close to the viscous flow temperature of thermoplastics.
  • the plasticized thermoplastic near the viscous flow temperature is passed through a series of oppositely rotating horizontal roller gaps through the open-melting process, so that the material is subjected to extrusion and extension, and becomes a sheet with a certain thickness, width and smooth surface. shaped products.
  • the mixture is placed in an internal mixer for internal mixing, and the rotating speed of the internal mixer is 100-300 r/min, and the mixture is placed in the internal mixer for heating and stirring, so that it is fully fused until the temperature of the mixture is Raise to 140-180°C, stop stirring.
  • the uniformly mixed mixture is added to a twin-roll mixer for kneading, and the processing temperature is 140-180° C. until the film-forming surface is smooth and free of cracks.
  • the sheet-like product obtained by the open refining is placed in a flat vulcanizer for compression molding, the pressure is 4-9MPa, and the processing temperature is 135-150°C.
  • the sheet-like product obtained by opening is placed in a flat-plate hydraulic press for compression molding.
  • the present invention also provides a plastic floor of the PVC board prepared by the above preparation method.
  • the plastic floor includes a wear-resistant layer, a printing color film layer, a mid-sole material layer, a glass fiber mesh layer, a mid-sole material layer, a glass fiber mesh layer, a base material layer, and a Anti-slip film.
  • the first middle bottom material layer, the second middle bottom material layer and the bottom material layer are all prepared by the above preparation method, the difference is: in the first middle bottom material layer and the second middle bottom material layer, the PVC powder and DOTP
  • the mass ratio is 1.5-3:1
  • the mass ratio of PVC powder and stabilizer is 40-50:1
  • the mass ratio of mixed powder and rubber is 4.5-4.7:1
  • the mass ratio of mixed powder and stone powder is 0.25-0.26: 1.
  • the mass ratio of PVC powder and DOTP is 1.5-3:1
  • the mass ratio of PVC powder and stabilizer is 40-50:1
  • the mass ratio of mixed powder and rubber is 4.7-4.8:1.
  • the mass ratio of mixed powder and stone powder is 0.5-0.6:1.
  • the thickness of the first middle bottom material layer is not less than 2.5 mm
  • the thickness of the second middle bottom material layer and the thickness of the bottom material layer are not less than 1 mm.
  • the plastic floor is prepared by the following steps:
  • the printed color film layer, the middle bottom material layer, the glass fiber mesh layer, the middle bottom material layer, the glass fiber mesh layer, the bottom material layer and the anti-slip film layer are laminated in order and then hot-pressed and bonded, wherein the hot-pressed The bonding temperature is 130-160°C;
  • UV layer Apply a layer of UV coating evenly on the floor after hot-pressing, and use LED-UV lamp to irradiate the coating surface for curing for 5-10s.
  • the role of the UV layer is to enhance the surface of the product to be scratch-resistant and resistant. Grinding performance, uniform surface gloss, enhanced waterproof and stain resistance;
  • the plastic floor is characterized in that it includes a wear-resistant layer, a printing color filter layer, a first middle bottom material layer, a glass fiber mesh layer, a second middle bottom material layer, a bottom layer and a bottom layer arranged in order from top to bottom.
  • Material layer and anti-slip film layer wherein, the first middle bottom material layer, the second middle bottom material layer and the bottom material layer are all prepared by the above preparation method, the difference is: the first middle bottom material layer and the second middle bottom material layer
  • the mass ratio of PVC powder and DOTP is 1.5-3:1
  • the mass ratio of PVC powder and stabilizer is 40-50:1
  • the mass ratio of mixed powder and rubber is 4.5-4.7:1
  • the mass ratio of mixed powder and stone powder is 4.5-4.7:1.
  • the mass ratio of PVC powder and DOTP is 0.25-0.26:1; in the primer layer, the mass ratio of PVC powder and DOTP is 1.5-3:1, the mass ratio of PVC powder and stabilizer is 40-50:1, and the mass ratio of mixed powder and rubber is 40-50:1.
  • the ratio is 4.7-4.8:1, and the mass ratio of mixed powder and stone powder is 0.5-0.6:1.
  • the thickness of the first middle bottom material layer is not less than 2.5 mm, and the thickness of the second middle bottom material layer and the thickness of the bottom material layer are not less than 1 mm.
  • the invention is designed through the selection of PVC powder, plasticizer, stabilizer, rubber and stone powder and the ratio of raw materials, so that the raw materials interact, thereby enhancing the toughness of the PVC board and improving the strength at the same time.
  • the PVC board provided by the invention adds rubber, which can increase the toughness of the PVC board and improve the strength of the material to a certain extent.
  • the rubber acts as an adhesive in the PVC board, and the addition of stone powder can obviously improve the bonding of the rubber.
  • Strength and water resistance, at the same time, stone powder can be used as inorganic filler to make PVC board have excellent heat aging resistance, so that PVC board has good storage stability.
  • the addition of plasticizer can significantly improve the high temperature resistance, cold resistance and oil resistance of the PVC board, and can enhance the toughness of the PVC board and facilitate processing.
  • the energy between the stone powder and the rubber can interact, and the stone powder can improve the activity of the rubber, reduce the sulfur-carbon bond and the sulfur-sulfur bond energy of the rubber, and promote the sulfur-carbon bond of the rubber.
  • the breaking of sulfur-sulfur bonds, and the addition of PVC powder, plasticizer and stabilizer, the smoothness and wear resistance of the prepared PVC board are improved.
  • the PVC board prepared by the preparation method of the PVC board provided by the present invention has a flexural and compressive strength of 13-21 MPa. Compared with the existing plastic floor, the plastic floor using the PVC board has a noise reduction range of 10-23dB and no emission of volatile substances by increasing the thickness. Long-term indoor storage does not produce peculiar smell, and the wear resistance is better.
  • FIG. 1 is a schematic structural diagram of a plastic floor provided in Embodiment 5 of the present invention.
  • FIG. 2 is a schematic structural diagram of a plastic floor provided by Embodiment 6 of the present invention.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present invention, “plurality” means two or more, unless expressly and specifically defined otherwise.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal communication between two elements or an interaction relationship between the two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal communication between two elements or an interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “beneath” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level less than the second feature.
  • the present embodiment provides a preparation method of a PVC board, comprising the following steps:
  • the present embodiment provides a preparation method of a PVC board, comprising the following steps:
  • the present embodiment provides a preparation method of a PVC board, comprising the following steps:
  • the present embodiment provides a preparation method of a PVC board, comprising the following steps:
  • this embodiment provides a plastic floor, which includes a wear-resistant layer 1 , a printing color filter layer 2 , a first middle bottom material layer 3 , a glass fiber mesh layer 4 , a second layer of The middle bottom material layer 5, the glass fiber mesh layer 4, the bottom material layer 6 and the anti-slip film layer 7, the first middle bottom material layer 3 and the second middle bottom material layer 5 are all prepared by the preparation method of Example 1.
  • the material layer was prepared by the preparation method of Example 3.
  • the thickness of the wear-resistant layer 1 is 0.5mm, the thickness of the printing color filter layer 2 is 0.07mm, the thickness of the first middle bottom material layer 3 is 1.5mm, the mass of the glass fiber mesh layer 4 is 45g, and the second middle bottom material
  • the thickness of the layer is 1 mm, the thickness of the primer layer 6 is 1 mm, and the thickness of the anti-slip film layer is 0.2 mm.
  • this embodiment provides a plastic floor, which includes a wear-resistant layer 1 , a printing color filter layer 2 , a first middle bottom material layer 3 , a glass fiber mesh layer 4 , a second layer of The middle bottom material layer 5, the bottom material layer 6 and the anti-slip film layer 7, the first middle bottom material layer 3 and the second middle bottom material layer 5 are prepared by the preparation method of Example 2, and the bottom material layer 6 adopts the embodiment 4 was prepared according to the preparation method.
  • the thickness of the wear-resistant layer 1 is 0.5mm, the thickness of the printing color filter layer 2 is 0.07mm, the thickness of the first middle bottom material layer 3 is 1.5mm, the mass of the glass fiber mesh layer 4 is 45g, and the second middle bottom material
  • the thickness of the layer is 2 mm, the thickness of the primer layer 6 is 1 mm, and the thickness of the anti-slip film layer is 0.2 mm.
  • the plastic floor of the PVC board prepared by the preparation method provided by the present invention has excellent wear resistance, and the warpage rate and shrinkage rate of heating and heating are reduced, which increases the plastic floor. Impact resistance.
  • the thickness of the plastic floor provided in Examples 5 to 6 is thicker, so not only is the texture softer, waterproof and moisture-proof, but also the floor has a strong impact resistance. The lower part can restore elasticity very well.

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Abstract

本发明涉及一种PVC板的制备方法，包括如下步骤：将PVC粉、增塑剂和稳定剂在90-130℃下混合制成混合粉；将混合粉与橡胶、石粉混合均匀制成混合物；将混合物置于密炼机中进行密炼直至混合物的温度升至140-180℃，得到热塑性塑料；将热塑性塑料进行开炼得到片状制品；将片状制品加压成型。本发明还提供了使用上述制备方法制备的PVC板的一种塑胶地板。

Description

一种PVC板的制备方法及使用该PVC板的塑胶地板 技术领域
本发明涉及塑胶地板领域，特别是涉及一种PVC板的制备方法及使用该PVC板的塑胶地板。
背景技术
目前，塑胶地板已被越来越广泛地应用到日常生活中，塑胶地板与普通地板相比具有绿色可回收、质轻、耐腐蚀、耐霉变、耐虫蛀以及施工简单等优点，然而，现有的塑胶地板存在的技术问题为：塑胶地板厚度增加会导致其韧性不够，容易发生脆性断裂，这在很大程度上限制了塑胶地板无法做大厚度。而厚度做大的塑胶地板具有如下优点：1.塑胶地板表面所能承受的压力增加，不容易产生凹陷；2.塑胶地板的减震性能、保温性能和隔音性能提高。
发明内容
针对现有技术中存在的技术问题，本发明提供一种PVC板的制备方法及使用该PVC板的塑胶地板，本发明提供的PVC板的制备方法所制备的PVC板其韧性较好并且同时具有较好的强度，使用该PVC板的塑胶地板可以增加厚度。
为实现上述目的，本发明采用如下技术方案：一种PVC板，由以下的原料制备而成：平均聚合度800-1000的PVC粉、增塑剂、稳定剂、橡胶和石粉。
在本申请中所记载的稳定剂可采用现有技术中所公开的应用于PVC板制备的稳定剂。例如，稳定剂可选用钙锌稳定剂和/或有机锡稳定剂。稳定剂能防止热塑性树脂的分解，确保物料的流动性。
在一实施例中，采用DOTP(对苯二甲酸二辛酯)作为增塑剂，可以使PVC板的韧性增强，便于加工。
一种PVC板的制备方法，包括：
(1)称量：称取各种原料；
(2)将PVC粉、增塑剂和稳定剂在90-130℃下混合制成混合粉；
(3)将所述混合粉与橡胶、石粉混合均匀制成混合物；
(4)将混合物置于密炼机中进行密炼直至混合物的温度升至140-180℃，，得到热塑性塑料；
(5)将热塑性塑料进行开炼得到片状制品；
(6)将片状制品加压成型，并置于室温25±2℃的恒温室冷却定型24-72h得到半成品；
(7)按照需求，将半成品裁切成所需的尺寸，即得到最终产品。
在一实施例中，将混合物置于密炼机中进行密炼，密炼机内温度升至140-180℃，在较短的时间里获得理想可塑度，使混合物接近粘流温度的热塑性塑料，将已经塑化的接近粘流温度的热塑性塑料，用开炼工序通过一系列相向旋转着的水平辊筒间隙，使物料承受挤压和延展作用，成为具有一定厚度、宽度与表面光洁的薄片状制品。
在一实施例中，将混合物置于密炼机中进行密炼，密炼机的转速为100-300r/min，混合物置于密炼机中进行加热搅拌，使其充分融合直至混合物的的温度升至140-180℃，停止搅拌。
在一实施例中，将混合均匀的混合物加入双辊混炼机进行开炼，加工温度为140-180℃，直至成膜表面光滑且无龟裂。
在一实施例中，将开炼得到的片状制品置于平板硫化仪中加压成型，压力为4-9MPa，加工温度为135-150℃。
在一实施例中，将开炼得到的片状制品置于平板油压机中加压成型。
本发明还提供了使用上述制备方法制备的PVC板的一种塑胶地板。
在一实施例中，塑胶地板，包括由上至下依次设置的耐磨层、印刷彩膜层、中底料层、玻纤网层、中底料层、玻纤网层、底料层和止滑膜层。其中，第一中底料层、第二中底料层和底料层均采用上述制备方法进行制备，区别在于：第一中底料层和第二中底料层中，PVC粉和DOTP的质量比为1.5-3:1，PVC粉和稳定剂的质量比为40-50:1，混合粉和橡胶的质量比为4.5-4.7:1，混合粉和石粉的质量比为0.25-0.26:1；底料层中，PVC粉和DOTP的质量比为1.5-3:1，PVC粉和稳定剂的质量比为40-50:1，混合粉和橡胶的质量比为4.7-4.8:1，混合粉和石粉的质量比为0.5-0.6:1。第一中底料层的厚度不小于2.5mm，第二中底料层的厚度和底料层的厚度均不小于1mm。该塑胶地板通过以下步骤进行制备：
(1)将印刷彩膜层、中底料层、玻纤网层、中底料层、玻纤网层、底料层 和止滑膜层按顺序层叠后热压贴合，其中，热压贴合的温度为130-160℃；
(2)在热压贴合后的地板上均匀辊涂一层UV涂料，采用LED-UV灯辐照所述涂料表面进行固化5-10s，该UV层的作用在于增强制品表面耐刮、耐磨性能，统一表面光泽度，增强防水与耐污功能；
(3)将固化后的地板送入冲切机，切成小片，然后开槽并包装，得塑胶地板。
在一实施例中，塑胶地板，其特征在于：包括由上至下依次设置的耐磨层、印刷彩膜层、第一中底料层、玻纤网层、第二中底料层、底料层和止滑膜层，其中，第一中底料层、第二中底料层和底料层均采用上述制备方法进行制备，区别在于：第一中底料层和第二中底料层中，PVC粉和DOTP的质量比为1.5-3:1，PVC粉和稳定剂的质量比为40-50:1，混合粉和橡胶的质量比为4.5-4.7:1，混合粉和石粉的质量比为0.25-0.26:1；底料层中，PVC粉和DOTP的质量比为1.5-3:1，PVC粉和稳定剂的质量比为40-50:1，混合粉和橡胶的质量比为4.7-4.8:1，混合粉和石粉的质量比为0.5-0.6:1。第一中底料层的厚度不小于2.5mm，第二中底料层的厚度和底料层的厚度均不小于1mm。
本发明通过PVC粉、增塑剂、稳定剂、橡胶和石粉的选取以及原料配比进行设计，使得各原料相互作用，进而达到增强PVC板的韧性并且同时提高强度。本发明提供的PVC板中加入了橡胶，可以增加PVC板的韧性并在一定程度上提高材料的强度，橡胶在PVC板起到了胶黏剂的作用，而石粉的加入可以明显改善橡胶的粘接强度和耐水性，同时石粉能作为无机填料使得PVC板具有优良的耐热老化性，使PVC板贮存稳定性好。增塑剂的加入可以显著提高PVC板的耐高温性、耐寒性、耐油性，并且可以使PVC板的韧性增强，便于加工。
本发明提供的一种PVC板的制备方法中，石粉和橡胶之间的能进行相互作用，石粉能提高橡胶的活性，降低橡胶的硫碳键、硫硫键键能，促进橡胶的硫碳键、硫硫键的断裂，并且结合PVC粉、增塑剂、稳定剂的加入，使得制备的PVC板的光滑度和耐磨性能得到改善。
本发明提供的一种PVC板的制备方法所制备的PVC板，其抗折、抗压强度能够达到13-21MPa。使用该PVC板的塑胶地板相较于现有的塑胶地板，通过 增加厚度使得降噪幅度为10-23dB并且无挥发性物质的排放，长期室内放置无异味产生，并且耐磨性能较优。
下面结合具体实施例进行说明。
附图说明
附图对本发明作进一步说明，但附图中的实施例不构成对本发明的任何限制。
图1为本发明实施例5提供的塑胶地板的结构示意图。
图2为本发明实施例6提供的塑胶地板的结构示意图。
附图说明：1.耐磨层；2.印刷彩膜层；3.第一中底料层；4.玻纤网层；5.第二中底料层；6.底料层；7.止滑膜层。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体地限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具 体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度小于第二特征。
实施例1
本实施例提供一种PVC板的制备方法，包括如下步骤：
(1)称量：称取各种原料，其中PVC粉和DOTP的质量比为1.5:1，PVC粉和稳定剂的质量比为40:1；
(2)将PVC粉、增塑剂和稳定剂在90℃下混合制成混合粉；
(3)将所述混合粉与橡胶、石粉混合均匀制成混合物，其中混合粉和橡胶的质量比为4.5:1，混合粉和石粉的质量比为0.25:1；
(4)将混合物置于密炼机中进行密炼直至混合物的温度升至140℃；
(5)将密炼后的混合物加入双辊混炼机进行开炼；
(6)将开炼过的混合物置于平板硫化仪中加压成型并置于室温下冷却定型24h；
(7)按照需求裁切成所需的尺寸，得到最终产品。
实施例2
本实施例提供一种PVC板的制备方法，包括如下步骤：
(1)称量：称取各种原料，其中PVC粉和DOTP的质量比为3:1，PVC粉和稳定剂的质量比为50:1；
(2)将PVC粉、增塑剂和稳定剂在110℃下混合制成混合粉；
(3)将所述混合粉与橡胶、石粉混合均匀制成混合物，其中混合粉和橡胶的质量比为4.7:1，混合粉和石粉的质量比为0.26:1；
(4)将混合物置于密炼机中进行密炼直至混合物的温度升至180℃；
(5)将密炼后的混合物加入双辊混炼机进行开炼；
(6)将开炼过的混合物置于平板硫化仪中加压成型并置于室温下冷却定型72h；
(7)按照需求裁切成所需的尺寸，得到最终产品。
实施例3
本实施例提供一种PVC板的制备方法，包括如下步骤：
(1)称量：称取各种原料，其中PVC粉和DOTP的质量比为2:1，PVC粉和稳定剂的质量比为45:1；
(2)将PVC粉、增塑剂和稳定剂在100℃下混合制成混合粉；
(3)将所述混合粉与橡胶、石粉混合均匀制成混合物，其中混合粉和橡胶的质量比为4.7:1，混合粉和石粉的质量比为0.5:1；
(4)将混合物置于密炼机中进行密炼直至混合物的温度升至150℃；
(5)将密炼后的混合物加入双辊混炼机进行开炼；
(6)将开炼过的混合物置于平板硫化仪中加压成型并置于室温下冷却定型48h；
(7)按照需求裁切成所需的尺寸，得到最终产品。
实施例4
本实施例提供一种PVC板的制备方法，包括如下步骤：
(1)称量：称取各种原料，其中PVC粉和DOTP的质量比为2.5:1，PVC粉和稳定剂的质量比为48:1；
(2)将PVC粉、增塑剂和稳定剂在95℃下混合制成混合粉；
(3)将所述混合粉与橡胶、石粉混合均匀制成混合物，其中混合粉和橡胶的质量比为4.8:1，混合粉和石粉的质量比为0.6:1；
(4)将混合物置于密炼机中进行密炼直至混合物的温度升至170℃；
(5)将密炼后的混合物加入双辊混炼机进行开炼；
(6)将开炼过的混合物置于平板油压机中加压成型并置于室温下冷却定型48h；
(7)按照需求裁切成所需的尺寸，得到最终产品。
实施例5
如图1所示，本实施例提供一种塑胶地板，包括由上至下依次设置的耐磨层1、印刷彩膜层2、第一中底料层3、玻纤网层4、第二中底料层5、玻纤网层4、底料层6和止滑膜层7，第一中底料层3和第二中底料层5均采用实施例1的制备方法进行制备，底料层采用实施例3的制备方法进行制备。其中耐磨层1的厚度为0.5mm，印刷彩膜层2的厚度为0.07mm，第一中底料层3的厚度为1.5mm，玻纤网层4的质量为45g，第二中底料层的厚度为1mm，底料层6的厚度为1mm，止滑膜层的厚度为0.2mm。
实施例6
如图2所示，本实施例提供一种塑胶地板，包括由上至下依次设置的耐磨层1、印刷彩膜层2、第一中底料层3、玻纤网层4、第二中底料层5、底料层6和止滑膜层7，第一中底料层3和第二中底料层5均采用实施例2的制备方法进行制备，底料层6采用实施例4的制备方法进行制备。其中耐磨层1的厚度为0.5mm，印刷彩膜层2的厚度为0.07mm，第一中底料层3的厚度为1.5mm，玻纤网层4的质量为45g，第二中底料层的厚度为2mm，底料层6的厚度为1mm，止滑膜层的厚度为0.2mm。
采用中国标准GB/T4085-2015对本发明实施例5至6的塑胶地板以及现有的塑胶地板的理化性能进行检测，检测结果如下表所示：
Figure PCTCN2020124810-appb-000001
Figure PCTCN2020124810-appb-000002
由表1可知，与对比例相比，采用本发明提供的制备方法所制备的PVC板的塑胶地板具有优异的耐磨性，且加热加热翘曲率和收缩率均降低了，增加了塑胶地板的抗冲击性。相较于现有的塑胶地板的厚度，实施例5至6所提供的塑胶地板的厚度更厚，因此不仅质地较软、防水防潮，而且地板具有很强的抗冲击性，在重物的冲击下可以很好地恢复弹性。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种PVC板的制备方法，其特征在于，包括如下步骤：
    将PVC粉、增塑剂和稳定剂在90-130℃下混合制成混合粉；
    将所述混合粉与橡胶、石粉混合均匀制成混合物；
    将所述混合物置于密炼机中进行密炼直至所述混合物的温度升至
    140-180℃，得到热塑性塑料；
    将所述热塑性塑料进行开炼得到片状制品；
    将所述片状制品加压成型。
  2. 根据权利要求1所述的制备方法，其特征在于：所述开炼的加工温度为140-180℃。
  3. 根据权利要求1所述的制备方法，其特征在于：所述加压成型的压力为4-9MPa，加工温度为135-150℃
  4. 根据权利要求1所述的制备方法，其特征在于：所述增塑剂为DOTP。
  5. 根据权利要求4所述的制备方法，其特征在于：所述PVC粉和所述DOTP的质量比为1.5-3:1，所述PVC粉和所述稳定剂的质量比为40-50:1。
  6. 根据权利要求5所述的制备方法，其特征在于：所述混合粉和所述橡胶的质量比为4.5-4.7:1，所述混合粉和所述石粉的质量比为0.25-0.26:1。
  7. 根据权利要求5所述的制备方法，其特征在于：所述混合粉和所述橡胶的质量比为4.7-4.8:1，所述混合粉和所述石粉的质量比为0.5-0.6:1。
  8. 一种塑胶地板，其特征在于：包括由上至下依次设置的耐磨层、印刷彩膜层、第一中底料层、玻纤网层、第二中底料层、玻纤网层、底料层和止滑膜层，所述第一中底料层和所述第二中底料层均采用如权利要求6所述的制备方法进行制备，所述底料层采用如权利要求7所述的制备方法进行制备。
  9. 一种塑胶地板，其特征在于：包括由上至下依次设置的耐磨层、印刷彩膜层、第一中底料层、玻纤网层、第二中底料层、底料层和止滑膜层，所述第一中底料层和所述第二中底料层均采用如权利要求6所述的制备方法进行制备，所述底料层采用如权利要求7所述的制备方法进行制备。
  10. 根据权利要求8或9所述的塑胶地板，其特征在于：所述第一中底料层的厚度不小于1.5mm，所述第二中底料层的厚度不小于2.0mm，所述底料层 的厚度不小于1mm。
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