WO2016134568A1 - Self-skinning anti-fatigue floor mat and preparation process therefor - Google Patents
Self-skinning anti-fatigue floor mat and preparation process therefor Download PDFInfo
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- WO2016134568A1 WO2016134568A1 PCT/CN2015/081376 CN2015081376W WO2016134568A1 WO 2016134568 A1 WO2016134568 A1 WO 2016134568A1 CN 2015081376 W CN2015081376 W CN 2015081376W WO 2016134568 A1 WO2016134568 A1 WO 2016134568A1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G27/00—Floor fabrics; Fastenings therefor
- A47G27/02—Carpets; Stair runners; Bedside rugs; Foot mats
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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
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
Definitions
- the anti-fatigue mat is generally divided into a composite material floor mat and a polyurethane floor mat, and the composite material floor mat includes a polyvinyl chloride PVC layer, an EPDM EPDM layer and a rubber layer in order from top to bottom.
- the composite floor mat has several disadvantages: 1. High manufacturing cost, complicated process, and low production efficiency; 2.
- the multi-layer composite structure is formed by bonding adhesives, so that it is easy to delamination and crack, and shorten the service life; 3, because the surface of the product is PVC layer, PVC layer is easy to age and easy to precipitate additives, resulting in hardening of the mat, reducing the service life; 4, the product is easy to absorb water, easy to mold and bacteria, not convenient to clean.
- the inner core layer has a density of 60 kg/M 3 .
- Step 1 Wipe the mold cavity with a clean white cloth
- Step 2 spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
- Step 3 the mold is introduced into the refrigerant, and the mold temperature is controlled at 20-30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
- Step 5 shaking the mold
- Step 6 After the polyurethane raw material fills the mold cavity, the refrigerant is replaced with a heat medium to make the mold The temperature of the appliance is raised to 40-120 ° C in 1 minute;
- the polyurethane raw material comprises an A component (polyether polyol and an auxiliary) and a B component (isocyanate), and the mass ratio of the B component/A component is 0.2-0.5; the A component and the B component are at a temperature of 20- The reaction was mixed at 30 °C.
- the B component is a one-component isocyanate or a multi-component isocyanate.
- the present invention has the following advantages:
- the floor mat body of the invention is integrally formed of polyurethane, which not only saves processing cost, improves production efficiency, but also prolongs the service life of the product, and avoids delamination of the product due to cold weather, overheating or frequent use. Cracking phenomenon.
- the product also has the characteristics of non-absorbent water, which prevents the product from being mildewed and bacteria-producing due to water absorption, further enhancing the performance of the product.
- Figure 2 is a schematic structural view of the cold heat exchange system of the present invention.
- the mat body 1 includes an upper surface layer 11 , an inner core layer 12 , and The lower surface layer 13, the upper surface layer 11 and the lower surface layer 13 are both high density polyurethane layers, and the inner core layer 12 is a low density polyurethane layer.
- the invention prepares a self-skinning anti-fatigue mat, which comprises the following steps:
- Step 1 Wipe the mold cavity with a clean white cloth
- Step 2 spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
- Step 3 the mold is introduced into the refrigerant, and the mold temperature is controlled at 20-30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
- Step 6 after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 40-120 ° C in 1 minute;
- Step 7 After the polyurethane raw material is matured in the mold, the product is opened by mold removal (ie, curing), and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is less than 15 minutes.
- mold removal ie, curing
- both the refrigerant and the heat medium are in the cold heat exchange system 2
- the cold heat exchange system 2 includes a heating tank 21, a cooling tank 22, a first duct 23, a second duct 24, and a
- the three pipes 25 and the fourth pipe 26, the heat medium and the refrigerant are respectively placed in the heating tank 21 and the cooling tank 22, and the first pipe 23 and the third pipe 25 are both connected to the heating tank 21 and the mold, the second pipe 24 and the fourth pipe 26 is connected to the cooling box 22 and the mold, the first pipe 23 and the third pipe 25 are provided with a solenoid valve A and a solenoid valve C, and the second pipe 24 and the fourth pipe 26 are respectively provided with a solenoid valve B and a solenoid valve D, A first pump 27 and a second pump 28 are provided on the third duct 25 and the fourth duct 26, respectively.
- the cold heat exchange system 2 controls the ingress and egress of the heat medium and the refrigerant by the cooperation between the four solenoid
- the principle of the invention is that the polyurethane foaming reaction is an exothermic reaction, and the foaming agent added to the polyurethane raw material is boiled and expanded by heat.
- the foaming agent When the foamed polyurethane raw material hits the inner wall of the low temperature mold, the foaming agent recondenses and It becomes a liquid, so that the polyurethane raw material is condensed on the inner wall of the mold into a dense skin (i.e., the upper surface layer 11 and the lower surface layer 13).
- a self-skinning product having a dense skin and a low density of the inner core layer is produced.
- the present invention rapidly raises the mold temperature after the polyurethane raw material is solidified to accelerate the product ripening speed, thereby improving the production efficiency.
- the polyurethane raw material includes the A component (polyether polyol and auxiliary material) and the B component (isocyanate), and the mass ratio of the B component/A component is 0.2-0.5;
- the component B is mixed at a temperature of 20 to 30 °C.
- the A component is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol, 2-8 parts of crosslinking agent, 1-2.5 parts of composite catalyst, 0.5-1 part of surfactant, foaming agent 10 -20 servings.
- the isocyanate may be a one-component isocyanate or a multi-component isocyanate.
- the self-skinning anti-fatigue mat made of the polyurethane raw material has the following performance indexes.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- a process for preparing a self-skinning anti-fatigue mat comprising the following steps:
- Step 1 Wipe the mold cavity with a clean white cloth
- Step 2 spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
- Step 3 the mold is introduced into the refrigerant, and the mold temperature is controlled at 20 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
- Step 4 clamping the mold and locking the mold
- Step 5 shaking the mold, so that the injected polyurethane flows uniformly in the mold cavity to ensure uniform density of various parts of the product and prevent bubbles from appearing inside the product;
- Step 6 after the polyurethane raw material fills the mold cavity, the refrigerant is replaced with a heat medium, so that the temperature of the mold is raised to 80 ° C in 1 minute;
- Step 7 After the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is 10 minutes.
- the test results are as follows:
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the A component and the B component were reacted at a temperature of 30 ° C to obtain a polyurethane of this example.
- a process for preparing a self-skinning anti-fatigue mat comprising the following steps:
- Step 1 Wipe the mold cavity with a clean white cloth
- Step 2 spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
- Step 3 the mold is introduced into the refrigerant, and the mold temperature is controlled at 25 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
- Step 4 clamping the mold and locking the mold
- Step 6 after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 120 ° C in 1 minute;
- Step 7 After the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is 5 minutes.
- the test results are as follows:
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- the A component and the B component were reacted at a temperature of 30 ° C to obtain a polyurethane of this example.
- a process for preparing a self-skinning anti-fatigue mat comprising the following steps:
- Step 1 Wipe the mold cavity with a clean white cloth
- Step 2 spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
- Step 3 the mold is introduced into the refrigerant, and the mold temperature is controlled at 30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
- Step 4 clamping the mold and locking the mold
- Step 5 shaking the mold, so that the injected polyurethane flows uniformly in the mold cavity to ensure uniform density of various parts of the product and prevent bubbles from appearing inside the product;
- Step 6 after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 40 ° C in 1 minute;
- Step 7 after the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then trimmed. After the product and mold are cleaned, the preparation process of the entire product is completed, and the curing time is 12 minutes.
- the test results are as follows:
- the upper surface layer 11 and the lower surface layer 13 are made of high-density polyurethane, the surface strength of the product is improved, and damage is less likely to occur, thereby enhancing the tear resistance and durability of the product, and the product is remarkably improved. Performance indicators;
- the inner core layer 12 of the present invention is made of low-density polyurethane, which ensures the flexibility and comfort of the product, improves the resilience and cushioning property of the product, thereby enhancing the anti-fatigue effect of the product and relieving the blood of the human foot. Circulation pressure to reduce physical fatigue;
- the floor mat body 1 of the invention is integrally formed of polyurethane, which not only saves processing cost, improves production efficiency, but also prolongs the service life of the product, and avoids the occurrence of products due to cold weather, overheating or frequent use.
- the phenomenon of layer cracking At the same time, the product also has the characteristics of non-absorbent water, which prevents the product from being mildewed and bacteria-producing due to water absorption, further enhancing the performance of the product.
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
A self-skinning anti-fatigue floor mat, comprising a mat body (1) which is integrally formed from polyurethane and comprises an upper surface layer (11), an inner core layer (12) and a lower surface layer (13), wherein the upper surface layer (11) and the lower surface layer (13) are both high density polyurethane layers, and the inner core layer (12) is a low-density polyurethane layer. A preparation process therefor comprises: step 1, wiping a mould cavity clean; step 2, successively spraying a mould releasing agent and an in-mould paint on the mould cavity; step 3, introducing a cooling medium into the mould with the temperature of the mould being controlled at 20-30ºC, and then injecting a polyurethane raw material into the mould cavity for a foaming reaction; step 4, closing the mould; step 5, shaking the mould; step 6, when the mould cavity is fully filled with the polyurethane raw material, changing the cooling medium to a heating medium to increase the temperature to 40-120ºC within 1 minute; and step 7, after the polyurethane raw material is cured in the mould, opening the mould and taking out a product. The floor mat has low costs, strong comfort level, good quality in use and high production efficiency.
Description
本发明涉及一种地垫,特指一种自结皮抗疲劳地垫及其制备工艺。The invention relates to a floor mat, in particular to a self-skinning anti-fatigue mat and a preparation process thereof.
随着国家经济的发展,生活水平日渐提高,室内装饰装修尤其是软装饰已成为一种新的时尚潮流。而地面装饰中的地垫,无论在家居还是在酒店宾馆、办公写字楼、公共娱乐等场所都扮演着一个非常重要角色。地垫按照功能分为除尘地垫、吸水地垫、防滑地垫和抗疲劳地垫等等。其中,抗疲劳地垫因其特殊的功能受到消费者的喜爱,并得到广泛的应用。With the development of the national economy and the improvement of living standards, interior decoration, especially soft decoration, has become a new fashion trend. The floor mats in the ground decoration play a very important role in the home and in hotels, office buildings, public entertainment and other places. The floor mats are divided into dust-removing mats, water-absorbing mats, non-slip mats and anti-fatigue mats according to their functions. Among them, the anti-fatigue mat is popular among consumers because of its special function, and has been widely used.
现有技术中,抗疲劳地垫通常分为复合材料层地垫和聚氨酯地垫,复合材料层地垫从上往下依次包括聚氯乙烯PVC层、三元乙丙橡胶EPDM层和橡胶层,然而,该复合材料地垫存在几个缺点:1、制造成本高,工艺复杂,生产效率低;2、多层复合的结构是通过胶粘剂结合而成的,这样容易分层开裂,缩短使用寿命;3、由于该产品的表面为PVC层,PVC层易老化且易析出助剂,导致地垫变硬,降低使用寿命;4、该产品易吸水,容易发霉及滋生细菌,不方便清理。而习知的聚氨酯地垫多采用单层均厚的聚氨酯材料所制,聚氨酯材料的密度通常较低(密度为200-400Kg/M3),虽然生产工艺较为简单,但是表面强度低,当其与高跟鞋长时间接触时,表面容易破损,影响产品的使用质量。
In the prior art, the anti-fatigue mat is generally divided into a composite material floor mat and a polyurethane floor mat, and the composite material floor mat includes a polyvinyl chloride PVC layer, an EPDM EPDM layer and a rubber layer in order from top to bottom. However, the composite floor mat has several disadvantages: 1. High manufacturing cost, complicated process, and low production efficiency; 2. The multi-layer composite structure is formed by bonding adhesives, so that it is easy to delamination and crack, and shorten the service life; 3, because the surface of the product is PVC layer, PVC layer is easy to age and easy to precipitate additives, resulting in hardening of the mat, reducing the service life; 4, the product is easy to absorb water, easy to mold and bacteria, not convenient to clean. Conventional polyurethane mats are mostly made of a single layer of uniform polyurethane material. The density of polyurethane materials is usually low (density is 200-400Kg/M 3 ). Although the production process is relatively simple, the surface strength is low. When it is in contact with high heels for a long time, the surface is easily damaged, which affects the quality of use of the product.
有鉴于此,本发明人专门设计了一种自结皮抗疲劳地垫及其制备工艺,本案由此产生。In view of this, the inventors have specially designed a self-skinning anti-fatigue mat and a preparation process thereof, and the present invention is produced.
发明内容Summary of the invention
本发明的目的之一在于提供一种自结皮抗疲劳地垫,以节约生产成本,提高使用舒适性,并改善产品的质量和性能。One of the objects of the present invention is to provide a self-skinning anti-fatigue mat to save production costs, improve the comfort of use, and improve the quality and performance of the product.
本发明的目的之二在于提供一种自结皮抗疲劳地垫的制备工艺,以优化加工工艺,提高生产效率。Another object of the present invention is to provide a preparation process of a self-skinning anti-fatigue mat to optimize the processing technology and improve production efficiency.
为了实现上述目的,本发明的技术方案如下:In order to achieve the above object, the technical solution of the present invention is as follows:
一种自结皮抗疲劳地垫,包括地垫本体,地垫本体为聚氨酯一体成型,地垫本体包括上表面层、内芯层和下表面层,上表面层和下表面层均为高密度聚氨酯层,内芯层均低密度聚氨酯层。A self-skinning anti-fatigue mat comprises a floor mat body, wherein the mat body is integrally formed of polyurethane, and the mat body comprises an upper surface layer, an inner core layer and a lower surface layer, wherein the upper surface layer and the lower surface layer are both high density The polyurethane layer has an inner core layer of a low density polyurethane layer.
所述上表面层和下表面层的密度均为500-1000Kg/M3。The upper surface layer and the lower surface layer have a density of 500-1000 Kg/M 3 .
所述上表面层和下表面层的密度均为800Kg/M3。The upper surface layer and the lower surface layer have a density of 800 Kg/M 3 .
所述内芯层的密度为20-200Kg/M3。The inner core layer has a density of 20 to 200 Kg/M 3 .
所述内芯层的密度为60Kg/M3。The inner core layer has a density of 60 kg/M 3 .
一种自结皮抗疲劳地垫的制备工艺,它包括以下步骤:A preparation process of a self-skinning anti-fatigue mat comprises the following steps:
步骤1,用干净的白布将模具型腔擦拭干净; Step 1. Wipe the mold cavity with a clean white cloth;
步骤2,在模具型腔上先后喷上一层离型剂和一层模内漆; Step 2, spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
步骤3,模具通入冷媒,并使模具温度控制在20-30℃;然后将聚氨酯原料注入模具型腔内进行发泡反应;Step 3, the mold is introduced into the refrigerant, and the mold temperature is controlled at 20-30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
步骤4,合模,并将模具锁紧;Step 4, clamping the mold and locking the mold;
步骤5,摇模;Step 5, shaking the mold;
步骤6,当聚氨酯原料填满模具型腔后,将冷媒换成热媒,使模
具的温度在1分钟内提升至40-120℃;Step 6. After the polyurethane raw material fills the mold cavity, the refrigerant is replaced with a heat medium to make the mold
The temperature of the appliance is raised to 40-120 ° C in 1 minute;
步骤7,待聚氨酯原料在模具中熟化后开模取出产品,再经修边产品和模具清理,便完成整个产品的制备工艺,熟化时间小于15分钟。Step 7. After the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is less than 15 minutes.
所述聚氨酯原料包括A组分(聚醚多元醇和辅料)和B组分(异氰酸酯),B组分/A组分的质量比为0.2-0.5;A组分和B组分在温度为20-30℃的条件下混合反应。The polyurethane raw material comprises an A component (polyether polyol and an auxiliary) and a B component (isocyanate), and the mass ratio of the B component/A component is 0.2-0.5; the A component and the B component are at a temperature of 20- The reaction was mixed at 30 °C.
所述A组分由下列原料按重量份数配制而成:聚醚多元醇100份,交联剂2-8份,复合催化剂1-2.5份,表面活性剂0.5-1份,发泡剂10-20份。The component A is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol, 2-8 parts of crosslinking agent, 1-2.5 parts of composite catalyst, 0.5-1 part of surfactant, foaming agent 10 -20 servings.
所述B组分为单组分异氰酸酯或多组分异氰酸酯。The B component is a one-component isocyanate or a multi-component isocyanate.
采用上述方案后,本发明具有以下几个优点:After adopting the above scheme, the present invention has the following advantages:
一、由于上表面层和下表面层均为高密度的聚氨酯所制,使产品的表面强度得到提高,不易发生破损,从而加强产品的抗撕裂性和耐用性,显著地改善了产品的性能指标;1. Since the upper surface layer and the lower surface layer are made of high-density polyurethane, the surface strength of the product is improved and the damage is less likely to occur, thereby enhancing the tear resistance and durability of the product, and the performance of the product is remarkably improved. index;
二、本发明的内芯层为低密度的聚氨酯所制,确保了产品的柔韧性和舒适性,提高了产品的回弹性和缓冲性,进而增强产品的抗疲劳效果,缓解人体脚部血液流通压力,减少身体疲劳感;Second, the inner core layer of the invention is made of low-density polyurethane, which ensures the flexibility and comfort of the product, improves the resilience and cushioning property of the product, thereby enhancing the anti-fatigue effect of the product and alleviating the blood circulation of the human foot. Stress, reduce physical fatigue;
三、本发明的地垫本体为聚氨酯一体成型,不仅节约了加工成本,提高了生产效率,而且延长了产品的使用寿命,避免了因天气过冷、过热或是使用频繁而造成产品出现分层开裂的现象。同时,产品还具有不吸水的特性,防止产品因吸水产生的发霉及滋生细菌,进一步加强了产品的性能。3. The floor mat body of the invention is integrally formed of polyurethane, which not only saves processing cost, improves production efficiency, but also prolongs the service life of the product, and avoids delamination of the product due to cold weather, overheating or frequent use. Cracking phenomenon. At the same time, the product also has the characteristics of non-absorbent water, which prevents the product from being mildewed and bacteria-producing due to water absorption, further enhancing the performance of the product.
以下结合附图和具体实施方式对本发明做进一步说明。
The invention will be further described below in conjunction with the drawings and specific embodiments.
图1是本发明的结构示意图;Figure 1 is a schematic view of the structure of the present invention;
图2是本发明冷热交换系统的结构原理图。Figure 2 is a schematic structural view of the cold heat exchange system of the present invention.
标号说明Label description
地垫本体1,上表面层11,内芯层12,下表面层13,冷热交换系统2,加热箱21,冷却箱22,第一管道23,第二管道24,第三管道25,第四管道26,第一泵27,第二泵28。 Floor mat body 1, upper surface layer 11, inner core layer 12, lower surface layer 13, cold heat exchange system 2, heating box 21, cooling box 22, first duct 23, second duct 24, third duct 25, Four conduits 26, a first pump 27, and a second pump 28.
如图1所示,本发明揭示的一种自结皮抗疲劳地垫,包括地垫本体1,地垫本体1为聚氨酯一体成型,地垫本体1包括上表面层11、内芯层12和下表面层13,上表面层11和下表面层13均为高密度聚氨酯层,内芯层12为低密度聚氨酯层。As shown in FIG. 1 , a self-skinning anti-fatigue mat disclosed in the present invention comprises a floor mat body 1 , and the mat body 1 is integrally formed of polyurethane. The mat body 1 includes an upper surface layer 11 , an inner core layer 12 , and The lower surface layer 13, the upper surface layer 11 and the lower surface layer 13 are both high density polyurethane layers, and the inner core layer 12 is a low density polyurethane layer.
为了使产品具有更佳的性能,此实施例的上表面层11和下表面层13的密度均为500-1000Kg/M3,内芯层12的密度为20-200Kg/M3。当上表面层11和下表面层13的密度均为800Kg/M3,内芯层12的密度为60Kg/M3时,产品的性能指标均能够达到最佳状态。To make products with better performance, on the surface layer of this embodiment and the embodiment 11 of the lower density of the surface layer 13 are 500-1000Kg / M 3, the density of the core layer 12 is 20-200Kg / M 3. When the density of the surface layer 11 and a lower surface layer 13 are 800Kg / M 3, the density of the core layer 12 is 60Kg / M 3, the product of the performance indicators are to achieve the best state.
本发明制备自结皮抗疲劳地垫的工艺,它包括以下步骤:The invention prepares a self-skinning anti-fatigue mat, which comprises the following steps:
步骤1,用干净的白布将模具型腔擦拭干净; Step 1. Wipe the mold cavity with a clean white cloth;
步骤2,在模具型腔上先后喷上一层离型剂和一层模内漆; Step 2, spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
步骤3,模具通入冷媒,并使模具温度控制在20-30℃;然后将聚氨酯原料注入模具型腔内进行发泡反应;Step 3, the mold is introduced into the refrigerant, and the mold temperature is controlled at 20-30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
步骤4,合模,并将模具锁紧;Step 4, clamping the mold and locking the mold;
步骤5,摇模;
Step 5, shaking the mold;
步骤6,当聚氨酯原料填满模具型腔后,将冷媒换成热媒,使模具的温度在1分钟内提升至40-120℃;Step 6, after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 40-120 ° C in 1 minute;
步骤7,待聚氨酯原料在模具中熟化后开模取出产品(即固化),再经修边产品和模具清理,便完成整个产品的制备工艺,熟化时间小于15分钟。Step 7. After the polyurethane raw material is matured in the mold, the product is opened by mold removal (ie, curing), and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is less than 15 minutes.
在本发明中,如图2所示,冷媒和热媒均处于冷热交换系统2中,该冷热交换系统2包括加热箱21、冷却箱22、第一管道23、第二管道24、第三管道25和第四管道26,热媒和冷媒分别放置在加热箱21和冷却箱22内,第一管道23和第三管道25均连通加热箱21和模具,第二管道24和第四管道26均连通冷却箱22和模具,第一管道23和第三管道25上设有电磁阀A和电磁阀C,第二管道24和第四管道26上均设有电磁阀B和电磁阀D,第三管道25和第四管道26上分别设有第一泵27和第二泵28。在使用时,该冷热交换系统2通过四个电磁阀之间的配合控制热媒和冷媒的进出,从而调节模具温度的高低。In the present invention, as shown in FIG. 2, both the refrigerant and the heat medium are in the cold heat exchange system 2, and the cold heat exchange system 2 includes a heating tank 21, a cooling tank 22, a first duct 23, a second duct 24, and a The three pipes 25 and the fourth pipe 26, the heat medium and the refrigerant are respectively placed in the heating tank 21 and the cooling tank 22, and the first pipe 23 and the third pipe 25 are both connected to the heating tank 21 and the mold, the second pipe 24 and the fourth pipe 26 is connected to the cooling box 22 and the mold, the first pipe 23 and the third pipe 25 are provided with a solenoid valve A and a solenoid valve C, and the second pipe 24 and the fourth pipe 26 are respectively provided with a solenoid valve B and a solenoid valve D, A first pump 27 and a second pump 28 are provided on the third duct 25 and the fourth duct 26, respectively. In use, the cold heat exchange system 2 controls the ingress and egress of the heat medium and the refrigerant by the cooperation between the four solenoid valves, thereby adjusting the temperature of the mold.
本发明的原理是:聚氨酯发泡反应为放热反应,使加在聚氨酯原料中的发泡剂受热沸腾膨胀,当已发泡的聚氨酯原料碰到低温的模具内壁时,发泡剂重新冷凝并变为液体,从而使聚氨酯原料在模具内壁凝结成致密的表皮(即上表面层11和下表面层13)。而模具温度越低,表皮越致密且越厚,同时,内芯层12密度也越低。这样就制成了表皮致密、内芯层密度低的自结皮产品。同时,由于模具的低温度容易造成聚氨酯原料反应过慢,降低生产效率,因此,本发明在聚氨酯原料固化后,迅速升高模具温度以加快产品熟化速度,进而提高生产效率。
The principle of the invention is that the polyurethane foaming reaction is an exothermic reaction, and the foaming agent added to the polyurethane raw material is boiled and expanded by heat. When the foamed polyurethane raw material hits the inner wall of the low temperature mold, the foaming agent recondenses and It becomes a liquid, so that the polyurethane raw material is condensed on the inner wall of the mold into a dense skin (i.e., the upper surface layer 11 and the lower surface layer 13). The lower the mold temperature, the denser and thicker the skin, and the lower the density of the inner core layer 12. Thus, a self-skinning product having a dense skin and a low density of the inner core layer is produced. At the same time, since the low temperature of the mold easily causes the polyurethane raw material to react too slowly and reduces the production efficiency, the present invention rapidly raises the mold temperature after the polyurethane raw material is solidified to accelerate the product ripening speed, thereby improving the production efficiency.
为了使产品具有更好的性能指标,聚氨酯原料包括A组分(聚醚多元醇和辅料)和B组分(异氰酸酯),B组分/A组分的质量比为0.2-0.5;A组分和B组分在温度为20-30℃的条件下混合反应。其中,A组分由下列原料按重量份数配制而成:聚醚多元醇100份,交联剂2-8份,复合催化剂1-2.5份,表面活性剂0.5-1份,发泡剂10-20份。其中,异氰酸酯可以是单组分异氰酸酯,也可以是多组分异氰酸酯。由所述聚氨酯原料制得的自结皮抗疲劳地垫具有以下性能指标。In order to make the product have better performance index, the polyurethane raw material includes the A component (polyether polyol and auxiliary material) and the B component (isocyanate), and the mass ratio of the B component/A component is 0.2-0.5; The component B is mixed at a temperature of 20 to 30 °C. Among them, the A component is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol, 2-8 parts of crosslinking agent, 1-2.5 parts of composite catalyst, 0.5-1 part of surfactant, foaming agent 10 -20 servings. Among them, the isocyanate may be a one-component isocyanate or a multi-component isocyanate. The self-skinning anti-fatigue mat made of the polyurethane raw material has the following performance indexes.
表1 自结皮抗疲劳地垫的性能指标Table 1 Performance indicators of self-skinning anti-fatigue mats
项目project | 单位unit | 性能指标Performance |
硬度hardness | HSAHSA | 15-7015-70 |
表皮密度Epidermal density | Kg/M3 Kg/M 3 | 500-1000500-1000 |
内芯密度Inner core density | Kg/M3 Kg/M 3 | 20-20020-200 |
拉伸强度Tensile Strength | MpaMpa | ≥0.20≥0.20 |
断裂伸长率Elongation at break | %% | ≥50≥50 |
撕裂强度Tear strength | N/mmN/mm | ≥0.20≥0.20 |
实施例一:Embodiment 1:
A组分和B组分在温度为30℃的条件下反应得到此实施例的聚氨酯。其中,A组分由下列原料按重量份数配制而成:聚醚多元醇100份(聚醚多元醇(Mn=5000)80份,聚合物多元醇20份),交联剂3份,复合催化剂1.02份(胺类催化剂1份,金属催化剂0.02
份),表面活性剂0.7份(硅烷类表面活性剂0.7份),发泡剂15份;B组分为异氰酸酯,B组分/A组分的质量比为0.3-0.34。The A component and the B component were reacted at a temperature of 30 ° C to obtain a polyurethane of this example. Among them, the A component is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol (80 parts of polyether polyol (Mn=5000), 20 parts of polymer polyol), 3 parts of crosslinking agent, compound 1.02 parts of catalyst (1 part of amine catalyst, 0.02 of metal catalyst)
Part) 0.7 parts of surfactant (0.7 part of silane surfactant), 15 parts of foaming agent; component B is isocyanate, and mass ratio of component B/component is 0.3-0.34.
制备自结皮抗疲劳地垫的工艺,它包括以下步骤:A process for preparing a self-skinning anti-fatigue mat comprising the following steps:
步骤1,用干净的白布将模具型腔擦拭干净; Step 1. Wipe the mold cavity with a clean white cloth;
步骤2,在模具型腔上先后喷上一层离型剂和一层模内漆; Step 2, spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
步骤3,模具通入冷媒,并使模具温度控制在20℃;然后将聚氨酯原料注入模具型腔内进行发泡反应;Step 3, the mold is introduced into the refrigerant, and the mold temperature is controlled at 20 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
步骤4,合模,并将模具锁紧;Step 4, clamping the mold and locking the mold;
步骤5,摇模,使注入的聚氨酯均匀地流淌在模具型腔内,以确保产品各部位的密度均匀,并防止产品内出现气泡;Step 5, shaking the mold, so that the injected polyurethane flows uniformly in the mold cavity to ensure uniform density of various parts of the product and prevent bubbles from appearing inside the product;
步骤6,当聚氨酯原料填满模具型腔后,将冷媒换成热媒,使模具的温度在1分钟内提升至80℃;Step 6, after the polyurethane raw material fills the mold cavity, the refrigerant is replaced with a heat medium, so that the temperature of the mold is raised to 80 ° C in 1 minute;
步骤7,待聚氨酯原料在模具中熟化后开模取出产品,再经修边产品和模具清理,便完成整个产品的制备工艺,熟化时间为10分钟。其测试结果如下:Step 7. After the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is 10 minutes. The test results are as follows:
表2 表面包覆层的性能指标Table 2 Performance indicators of surface coating
项目project | 单位unit | 性能指标Performance |
硬度hardness | HSAHSA | 2020 |
表皮密度Epidermal density | Kg/M3 Kg/M 3 | 600600 |
内芯密度Inner core density | Kg/M3 Kg/M 3 | 120120 |
拉伸强度Tensile Strength | MpaMpa | 0.300.30 |
断裂伸长率Elongation at break | %% | 8080 |
撕裂强度Tear strength | N/mmN/mm | 0.300.30 |
实施例二:Embodiment 2:
A组分和B组分在温度为30℃的条件下反应得到此实施例的聚氨酯。其中,A组分由下列原料按重量份数配制而成:聚醚多元醇100份(聚醚多元醇(Mn=5000)70份,聚合物多元醇30份),交联剂5份,复合催化剂1.02份(胺类催化剂1份,金属催化剂0.02份),表面活性剂0.7份(硅烷类表面活性剂0.7份),发泡剂15份;B组分为异氰酸酯,B组分/A组分的质量比为0.34-0.38。The A component and the B component were reacted at a temperature of 30 ° C to obtain a polyurethane of this example. Among them, the A component is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol (70 parts of polyether polyol (Mn=5000), 30 parts of polymer polyol), 5 parts of crosslinking agent, compound 1.02 parts of catalyst (1 part of amine catalyst, 0.02 parts of metal catalyst), 0.7 part of surfactant (0.7 part of silane surfactant), 15 parts of foaming agent; component B is isocyanate, component B/component A The mass ratio is 0.34-0.38.
制备自结皮抗疲劳地垫的工艺,它包括以下步骤:A process for preparing a self-skinning anti-fatigue mat comprising the following steps:
步骤1,用干净的白布将模具型腔擦拭干净; Step 1. Wipe the mold cavity with a clean white cloth;
步骤2,在模具型腔上先后喷上一层离型剂和一层模内漆; Step 2, spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
步骤3,模具通入冷媒,并使模具温度控制在25℃;然后将聚氨酯原料注入模具型腔内进行发泡反应;Step 3, the mold is introduced into the refrigerant, and the mold temperature is controlled at 25 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
步骤4,合模,并将模具锁紧;Step 4, clamping the mold and locking the mold;
步骤5,摇模,使注入的聚氨酯均匀地流淌在模具型腔内,以确保产品各部位的密度均匀,并防止产品内出现气泡;Step 5, shaking the mold, so that the injected polyurethane flows uniformly in the mold cavity to ensure uniform density of various parts of the product and prevent bubbles from appearing inside the product;
步骤6,当聚氨酯原料填满模具型腔后,将冷媒换成热媒,使模具的温度在1分钟内提升至120℃;Step 6, after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 120 ° C in 1 minute;
步骤7,待聚氨酯原料在模具中熟化后开模取出产品,再经修边产品和模具清理,便完成整个产品的制备工艺,熟化时间为5分钟。其测试结果如下:Step 7. After the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is 5 minutes. The test results are as follows:
表3 表面包覆层的性能指标Table 3 Performance indicators of surface coating
项目project | 单位unit | 性能指标Performance |
硬度hardness | HSAHSA | 3535 |
表皮密度Epidermal density | Kg/M3 Kg/M 3 | 700700 |
内芯密度Inner core density | Kg/M3 Kg/M 3 | 100100 |
拉伸强度Tensile Strength | MpaMpa | 0.350.35 |
断裂伸长率Elongation at break | %% | 8080 |
撕裂强度Tear strength | N/mmN/mm | 0.300.30 |
实施例三:Embodiment 3:
A组分和B组分在温度为30℃的条件下反应得到此实施例的聚氨酯。其中,A组分由下列原料按重量份数配制而成:聚醚多元醇100份(聚醚多元醇(Mn=5000)60份,聚合物多元醇40份),交联剂8份,复合催化剂1.02份(胺类催化剂1份,金属催化剂0.02份),表面活性剂0.7份(硅烷类表面活性剂0.7份),发泡剂15份;B组分为异氰酸酯,B组分/A组分的质量比为0.36-0.40。The A component and the B component were reacted at a temperature of 30 ° C to obtain a polyurethane of this example. Among them, the A component is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol (60 parts of polyether polyol (Mn=5000), 40 parts of polymer polyol), 8 parts of crosslinking agent, compound 1.02 parts of catalyst (1 part of amine catalyst, 0.02 parts of metal catalyst), 0.7 part of surfactant (0.7 part of silane surfactant), 15 parts of foaming agent; component B is isocyanate, component B/component A The mass ratio is 0.36-0.40.
制备自结皮抗疲劳地垫的工艺,它包括以下步骤:A process for preparing a self-skinning anti-fatigue mat comprising the following steps:
步骤1,用干净的白布将模具型腔擦拭干净; Step 1. Wipe the mold cavity with a clean white cloth;
步骤2,在模具型腔上先后喷上一层离型剂和一层模内漆; Step 2, spraying a layer of release agent and a layer of in-mold paint on the mold cavity;
步骤3,模具通入冷媒,并使模具温度控制在30℃;然后将聚氨酯原料注入模具型腔内进行发泡反应;Step 3, the mold is introduced into the refrigerant, and the mold temperature is controlled at 30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;
步骤4,合模,并将模具锁紧;Step 4, clamping the mold and locking the mold;
步骤5,摇模,使注入的聚氨酯均匀地流淌在模具型腔内,以确保产品各部位的密度均匀,并防止产品内出现气泡;Step 5, shaking the mold, so that the injected polyurethane flows uniformly in the mold cavity to ensure uniform density of various parts of the product and prevent bubbles from appearing inside the product;
步骤6,当聚氨酯原料填满模具型腔后,将冷媒换成热媒,使模具的温度在1分钟内提升至40℃;Step 6, after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 40 ° C in 1 minute;
步骤7,待聚氨酯原料在模具中熟化后开模取出产品,再经修边
产品和模具清理,便完成整个产品的制备工艺,熟化时间为12分钟。其测试结果如下:Step 7, after the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then trimmed.
After the product and mold are cleaned, the preparation process of the entire product is completed, and the curing time is 12 minutes. The test results are as follows:
表4 表面包覆层的性能指标Table 4 Performance indicators of surface coating
项目project | 单位unit | 性能指标Performance |
硬度hardness | HSAHSA | 3535 |
表皮密度Epidermal density | Kg/M3 Kg/M 3 | 800800 |
内芯密度Inner core density | Kg/M3 Kg/M 3 | 6060 |
拉伸强度Tensile Strength | MpaMpa | 0.450.45 |
断裂伸长率Elongation at break | %% | 100100 |
撕裂强度Tear strength | N/mmN/mm | 0.500.50 |
本发明具有以下几个优点:The invention has the following advantages:
一、由于上表面层11和下表面层13均为高密度的聚氨酯所制,使产品的表面强度得到提高,不易发生破损,从而加强产品的抗撕裂性和耐用性,显著地改善了产品的性能指标;1. Since the upper surface layer 11 and the lower surface layer 13 are made of high-density polyurethane, the surface strength of the product is improved, and damage is less likely to occur, thereby enhancing the tear resistance and durability of the product, and the product is remarkably improved. Performance indicators;
二、本发明的内芯层12为低密度的聚氨酯所制,确保了产品的柔韧性和舒适性,提高了产品的回弹性和缓冲性,进而增强产品的抗疲劳效果,缓解人体脚部血液流通压力,减少身体疲劳感;2. The inner core layer 12 of the present invention is made of low-density polyurethane, which ensures the flexibility and comfort of the product, improves the resilience and cushioning property of the product, thereby enhancing the anti-fatigue effect of the product and relieving the blood of the human foot. Circulation pressure to reduce physical fatigue;
三、本发明的地垫本体1为聚氨酯一体成型,不仅节约了加工成本,提高了生产效率,而且延长了产品的使用寿命,避免了因天气过冷、过热或是使用频繁而造成产品出现分层开裂的现象。同时,产品还具有不吸水的特性,防止产品因吸水产生的发霉及滋生细菌,进一步加强了产品的性能。3. The floor mat body 1 of the invention is integrally formed of polyurethane, which not only saves processing cost, improves production efficiency, but also prolongs the service life of the product, and avoids the occurrence of products due to cold weather, overheating or frequent use. The phenomenon of layer cracking. At the same time, the product also has the characteristics of non-absorbent water, which prevents the product from being mildewed and bacteria-producing due to water absorption, further enhancing the performance of the product.
上述实施例和图式并非限定本发明的产品形态和式样,任何所
属技术领域的普通技术人员对其所做的适当变化或修饰,皆应视为不脱离本发明的专利范畴。
The above embodiments and drawings do not limit the product form and style of the present invention.
Appropriate changes or modifications made by those skilled in the art should be considered as not departing from the scope of the invention.
Claims (8)
- 一种自结皮抗疲劳地垫,其特征在于:包括地垫本体,地垫本体为聚氨酯一体成型,地垫本体包括上表面层、内芯层和下表面层,上表面层和下表面层均为高密度聚氨酯层,内芯层为低密度聚氨酯层。A self-skinning anti-fatigue mat is characterized in that it comprises a floor mat body, and the mat body is integrally formed of polyurethane, and the mat body comprises an upper surface layer, an inner core layer and a lower surface layer, an upper surface layer and a lower surface layer. Both are high density polyurethane layers and the inner core layer is a low density polyurethane layer.
- 如权利要求1所述的自结皮抗疲劳地垫,其特征在于:所述上表面层和下表面层的密度均为500-1000Kg/M3。The self-skinning anti-fatigue mat according to claim 1, wherein the upper surface layer and the lower surface layer have a density of 500 to 1000 Kg/M 3 .
- 如权利要求2所述的自结皮抗疲劳地垫,其特征在于:所述上表面层和下表面层的密度均为800Kg/M3。The self-skinning anti-fatigue mat according to claim 2, wherein the upper surface layer and the lower surface layer have a density of 800 Kg/M 3 .
- 如权利要求1所述的自结皮抗疲劳地垫,其特征在于:所述内芯层的密度为20-200Kg/M3。A self-skinning anti-fatigue mat according to claim 1, wherein said inner core layer has a density of from 20 to 200 kg/m 3 .
- 如权利要求4所述的自结皮抗疲劳地垫,其特征在于:所述内芯层的密度为60Kg/M3。Since the crust of claim 4, wherein the anti-fatigue mats, characterized in that: said inner core layer having a density of 60Kg / M 3.
- 如权利要求1所述的一种自结皮抗疲劳地垫的制备工艺,其特征在于:它包括以下步骤:A process for preparing a self-skinning anti-fatigue mat according to claim 1, characterized in that it comprises the following steps:步骤1,用干净的白布将模具型腔擦拭干净;Step 1. Wipe the mold cavity with a clean white cloth;步骤2,在模具型腔上先后喷上一层离型剂和一层模内漆;Step 2, spraying a layer of release agent and a layer of in-mold paint on the mold cavity;步骤3,模具通入冷媒,并使模具温度控制在20-30℃;然后将聚氨酯原料注入模具型腔内进行发泡反应;Step 3, the mold is introduced into the refrigerant, and the mold temperature is controlled at 20-30 ° C; then the polyurethane raw material is injected into the mold cavity for foaming reaction;步骤4,合模,并将模具锁紧;Step 4, clamping the mold and locking the mold;步骤5,摇模;Step 5, shaking the mold;步骤6,当聚氨酯原料填满模具型腔后,将冷媒换成热媒,使模具的温度在1分钟内提升至40-120℃; Step 6, after the polyurethane raw material fills the mold cavity, the refrigerant is replaced by a heat medium, so that the temperature of the mold is raised to 40-120 ° C in 1 minute;步骤7,待聚氨酯原料在模具中熟化后开模取出产品,再经修边产品和模具清理,便完成整个产品的制备工艺,熟化时间小于15分钟。Step 7. After the polyurethane raw material is matured in the mold, the product is opened and the product is removed, and then the trimming product and the mold are cleaned to complete the preparation process of the whole product, and the curing time is less than 15 minutes.
- 如权利要求6所述的自结皮抗疲劳地垫的制备工艺,其特征在于:所述聚氨酯原料包括A组分(聚醚多元醇和辅料)和B组分(异氰酸酯),B组分/A组分的质量比为0.2-0.5;A组分和B组分在温度为20-30℃的条件下混合反应。The self-skinning anti-fatigue mat preparation process according to claim 6, wherein the polyurethane raw material comprises an A component (polyether polyol and an auxiliary material) and a B component (isocyanate), and a B component/A The mass ratio of the components is from 0.2 to 0.5; the components A and B are mixed and reacted at a temperature of 20 to 30 °C.
- 如权利要求6所述的自结皮抗疲劳地垫的制备工艺,其特征在于:所述A组分由下列原料按重量份数配制而成:聚醚多元醇100份,交联剂2-8份,复合催化剂1-2.5份,表面活性剂0.5-1份,发泡剂10-20份。 The self-skinning anti-fatigue mat preparation process according to claim 6, wherein the component A is prepared from the following raw materials in parts by weight: 100 parts of polyether polyol, crosslinking agent 2 8 parts, 1-2.5 parts of composite catalyst, 0.5-1 part of surfactant, 10-20 parts of foaming agent.
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CN110815694A (en) * | 2019-09-25 | 2020-02-21 | 翡柯机械(福建)有限公司 | Foam self-skinning process and device thereof |
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CN104622235A (en) * | 2015-02-26 | 2015-05-20 | 飞虎(厦门)聚氨酯制品有限公司 | Self-skinning anti-fatigue floor mat and production process thereof |
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CN106510413A (en) * | 2016-05-24 | 2017-03-22 | 厦门绵羊抗疲劳垫有限公司 | Combination antiskid mat |
CN106974531B (en) * | 2017-05-27 | 2018-02-02 | 徐昭琳 | A kind of length adjustable dicoration carpet |
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CN112874082A (en) * | 2021-01-12 | 2021-06-01 | 桐乡市得健家居用品股份有限公司 | Diatom ooze sponge ground mat and preparation method thereof |
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