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CN1590070A - Three-layer co-extruded foam board and its use and preparation method - Google Patents

Three-layer co-extruded foam board and its use and preparation method Download PDF

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CN1590070A
CN1590070A CN 03140404 CN03140404A CN1590070A CN 1590070 A CN1590070 A CN 1590070A CN 03140404 CN03140404 CN 03140404 CN 03140404 A CN03140404 A CN 03140404A CN 1590070 A CN1590070 A CN 1590070A
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foaming
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张瑞洋
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Abstract

The invention relates to the technical field of plastic plates, and discloses a three-layer co-extruded foam board (4) and application and a preparation method thereof, wherein the three-layer co-extruded foam board comprises a high-foaming plastic layer (1), and hard plastic layers (2 and 3) are respectively covered on two surfaces of the high-foaming plastic layer (1). The preparation method of the three-layer co-extrusion foaming plate is characterized in that the high-foaming plastic layer is prepared by adopting a physical foaming method, carbon dioxide or propane or butane gas is taken as a foaming agent and directly injected into an extrusion machine to prepare the high-foaming plastic plate with the density of 0.03g/cm3~0.6g/cm3The high foaming plastic layer. The three-layer co-extruded foaming board can be used for preparing an outer shell or an inner shell of a container, and can also be used for preparing a heat insulation board. The invention puts the high foaming plastic layer on the thicker layer in the middle, and the hard plastic layer is on the thinner layer on the two surfaces of the high foaming plastic layer, thus the weight of the composite plastic plate can be reduced by 20-95%, and the physical rigidity of the surface is still greatly improved; and the surface color is good, and different colors can be made according to the needs.

Description

三层共挤发泡板及其用途和制备方法Three-layer co-extruded foam board and its use and preparation method

技术领域:Technical field:

本发明涉及塑料板材技术领域,特指一种由泡沫塑料层与硬质塑料层复合而成的复合塑料板及其用途和制备方法。The invention relates to the technical field of plastic plates, in particular to a composite plastic plate composed of a foamed plastic layer and a hard plastic layer, as well as its application and preparation method.

背景技术:Background technique:

本人曾于2002年8月13日向国家知识产权局提出过专利号为02272457.5,名称为“三层共挤塑料板”的实用新型专利申请,在该申请中,公开了一种复合塑料板材,它包括一层微发泡塑料层,微发泡塑料层的两表面分别覆盖着硬质塑料层,微发泡塑料层的厚度比硬质塑料层各自的厚度大。微发泡塑料层及硬质塑料层可分别选择使用聚丙烯、高密度聚乙烯、低密度聚乙烯、线性聚乙烯、聚苯乙烯、乙烯醋酸—乙烯酯中其中任一种材料制成,微发泡塑料层亦可采用回收再生料制成。这样复合成的塑料板材比较单层硬性不发泡板重量可减轻20%~50%,而与单层发泡板相比表面物理刚性仍大幅度提高;且表面色相好,可根据需要做成不同的颜色。I once submitted to the State Intellectual Property Office on August 13, 2002 a utility model patent application with the patent number 02272457.5 and the name "three-layer co-extruded plastic board". In this application, a composite plastic board was disclosed. It includes a layer of micro-foaming plastic layer, the two surfaces of the micro-foaming plastic layer are respectively covered with hard plastic layers, and the thickness of the micro-foaming plastic layer is larger than the respective thicknesses of the hard plastic layers. The micro-foamed plastic layer and the hard plastic layer can be made of any one of polypropylene, high-density polyethylene, low-density polyethylene, linear polyethylene, polystyrene, and ethylene acetate-vinyl ester. The foamed plastic layer can also be made from recycled materials. Compared with the single-layer rigid non-foamed board, the weight of the composite plastic board can be reduced by 20% to 50%, while the physical rigidity of the surface is still greatly improved compared with the single-layer foamed board; and the surface color is good, and can be made according to needs. different color.

该板材的中间层为微发泡塑料层,即是低发泡塑料,它采用化学发泡方法在塑料中加入发泡剂制成,密度为0.5g/cm3~0.8g/cm3,但采用低发泡塑料作为复合板材的中间层,复合板材仍然较重。The middle layer of the board is a micro-foamed plastic layer, that is, low-foamed plastic, which is made by adding foaming agent to the plastic by chemical foaming method, with a density of 0.5g/cm 3 to 0.8g/cm 3 , but Using low-foaming plastic as the middle layer of the composite board, the composite board is still relatively heavy.

发明内容:Invention content:

本发明的目的就在于提供一种三层共挤发泡板的新结构以克服上述缺点,并且随之提出该板材的用途和它的制备方法。The purpose of the present invention is to provide a new structure of a three-layer co-extruded foam board to overcome the above disadvantages, and then propose the use of the board and its preparation method.

本发明是通过如下技术方案实现的:三层共挤发泡板,其特征在于:它包括高发泡塑料层,高发泡塑料层的两表面分别覆盖着硬质塑料层。The present invention is realized through the following technical scheme: a three-layer co-extruded foam board, which is characterized in that it includes a high-foaming plastic layer, and the two surfaces of the high-foaming plastic layer are respectively covered with hard plastic layers.

该三层共挤发泡板的制备方法,其特征在于:高发泡塑料层采用物理发泡方法制成,以二氧化碳或丙烷或丁烷气体作为发泡剂,直接打入挤押出机,制成密度为0.03g/cm3~0.6g/cm3的高发泡塑料层。The preparation method of the three-layer co-extrusion foam board is characterized in that: the high-foaming plastic layer is made by physical foaming method, and carbon dioxide or propane or butane gas is used as a foaming agent, which is directly injected into an extruder to form A high foaming plastic layer with a density of 0.03g/cm 3 to 0.6g/cm 3 .

该三层共挤发泡板的用途,其特征在于:它用于制备容器的外壳或内壳,它亦可用于制备隔热保温板。The use of the three-layer co-extruded foam board is characterized in that it is used to prepare the outer shell or inner shell of the container, and it can also be used to prepare heat insulation boards.

本发明将高发泡塑料层放在中间较厚的那层,硬质塑料层处于高发泡塑料层两表面上较薄的那层,这样复合成的塑料板材重量可减轻20%~95%,而表面物理刚性仍大幅度提高;且表面色相好,可根据需要做成不同的颜色;由于高发泡塑料层、硬质塑料层采用同类别塑材,即使不同种,在制造生产过程中可一次成型,这样一来降低了加工费用,高发泡塑料层也可采用回收再生料制成,不但符合环保要求同时又减少了成本,这两个因素都使得成本大为降低。In the present invention, the high-foaming plastic layer is placed on the thicker layer in the middle, and the hard plastic layer is placed on the thinner layer on both surfaces of the high-foaming plastic layer, so that the weight of the composite plastic sheet can be reduced by 20% to 95%. The physical rigidity of the surface is still greatly improved; and the surface hue is good, and can be made into different colors according to needs; because the high-foaming plastic layer and the hard plastic layer are made of the same type of plastic material, even if they are of different types, they can be molded at one time during the manufacturing process , In this way, the processing cost is reduced, and the high-foaming plastic layer can also be made of recycled materials, which not only meets the environmental protection requirements but also reduces the cost. These two factors have greatly reduced the cost.

由于三层共挤发泡板具有质轻隔热优良、热稳定性佳的特点,它的最高使用温度可达130℃,可高温加工成型,成型的制品尺寸稳定性优良,具有较高的韧性,拉伸强度好,冲击强度高,微波适应性优异;并且具有良好的焊接性;也具有良好的能量吸附性,良好的耐应力开裂性能,优良的力学性能,经过试验,它可制成容器的外壳或内壳。Because the three-layer co-extruded foam board has the characteristics of light weight, excellent heat insulation and good thermal stability, its maximum service temperature can reach 130°C, and it can be processed and formed at high temperature. The formed product has excellent dimensional stability and high toughness. , good tensile strength, high impact strength, excellent microwave adaptability; and has good weldability; also has good energy absorption, good stress cracking resistance, excellent mechanical properties, after testing, it can be made into containers outer shell or inner shell.

本人发现食品包装、承纳的容器大量采用聚苯乙烯PS发泡材料制成,PS发泡材料难以回收,会造成严重的白色污染。而三层共挤发泡板的降解性能明显优于聚苯乙烯PS发泡材料。用三层共挤发泡板可代替聚苯乙烯PS发泡材料制成食品包装、承纳的容器大量,如方便面的碗、快餐盒、杯子,超市上出售的各种水果、熟食品、半成品的包装盒,用于微波炉的食品托盘、器皿。I found that a large number of food packaging and storage containers are made of polystyrene PS foam material, which is difficult to recycle and will cause serious white pollution. The degradation performance of the three-layer co-extruded foam board is obviously better than that of polystyrene PS foam material. The three-layer co-extruded foam board can replace polystyrene PS foam material to make food packaging and accommodate a large number of containers, such as instant noodle bowls, fast food boxes, cups, various fruits, cooked foods, and semi-finished products sold in supermarkets. Packaging boxes, food trays, utensils for microwave ovens.

三层共挤发泡板它较好的能量吸附性,良好的耐应力开裂性能,优良的力学性能,使它可用于制备箱包的外壳,如旅行箱包、背囊、电脑包、运动包、书包、塑料箱的外壳。The three-layer co-extruded foam board has good energy absorption, good stress crack resistance, and excellent mechanical properties, so that it can be used to prepare the shell of bags, such as travel bags, backpacks, computer bags, sports bags, school bags. , The shell of the plastic box.

三层共挤发泡板它良好的的耐应力开裂性能,优良的力学性能,再加上它的良好的焊接性,使它可用于制备汽车的内衬板、挡泥板。The three-layer co-extruded foam board has good stress cracking resistance, excellent mechanical properties, and its good weldability, so that it can be used to prepare automobile inner linings and fenders.

本人又发现有些汽车的内衬板、隔热板、隔音板、挡泥板采用硬塑料板,硬塑料板重量大,并且作为隔热板、隔音板时还需要在板的内面加装发泡材料才能实现隔热、隔音的功能。I also found that the inner lining board, heat insulation board, sound insulation board and fender of some cars are made of hard plastic board. The material can realize the function of heat insulation and sound insulation.

而三层共挤发泡板具有良好隔热隔音性,它可隔音隔热,它的热导率比硬质泡沫塑料板、发泡聚乙烯PE都低,并且它具有良好的耐应力开裂性能,优良的力学性能,因此它是较为理想的保温隔热材料、隔音材料。它可用于制备隔热保温板,还可用于制备隔音板。如汽车的隔热板、隔音板、寒带房屋的保温板。The three-layer co-extruded foam board has good heat and sound insulation, it can sound and heat insulation, its thermal conductivity is lower than that of rigid foam plastic board and foamed polyethylene PE, and it has good stress crack resistance , Excellent mechanical properties, so it is an ideal thermal insulation material and sound insulation material. It can be used to prepare thermal insulation boards, and can also be used to prepare sound insulation boards. Such as automobile heat insulation boards, sound insulation boards, and insulation boards for houses in cold regions.

如果用三层共挤发泡板制成汽车的内衬板、隔热板、隔音板、挡泥板,不但可以减轻重量,并且由于该塑料板的中间夹有微发泡层,本身就具有隔热、隔音功能,用它制成的隔热板、隔音板就无需在板的内面加装发泡材料,这样制做汽车隔热板、隔音板的工艺简化,可降低成本、提高效率。If a three-layer co-extruded foam board is used to make the inner liner board, heat insulation board, sound insulation board, and fender of the car, it can not only reduce the weight, but also because the micro-foaming layer is sandwiched in the plastic board, it has its own characteristics. With heat insulation and sound insulation functions, the heat insulation board and sound insulation board made of it do not need to install foam material on the inner surface of the board, so the process of making automobile heat insulation board and sound insulation board is simplified, which can reduce costs and improve efficiency.

附图说明:Description of drawings:

附图1为本实用新型的结构示意图Accompanying drawing 1 is the structural representation of the utility model

具体实施方式:Detailed ways:

见附图1所示,三层共挤发泡板(4),其特征在于:它包括高发泡塑料层(1),高发泡塑料层(1)的两表面分别覆盖着硬质塑料层(2、3)。As shown in accompanying drawing 1, the three-layer co-extruded foam board (4) is characterized in that: it comprises a high-foaming plastic layer (1), and the two surfaces of the high-foaming plastic layer (1) are respectively covered with a hard plastic layer ( 2, 3).

高发泡塑料层(1)的厚度比硬质塑料层(2、3)各自的厚度大。The thickness of the highly foamed plastic layer (1) is greater than the respective thicknesses of the hard plastic layers (2, 3).

高发泡塑料层(1)、硬质塑料层(2、3)可以分别采用热可塑性材料制成。The high-foaming plastic layer (1) and the hard plastic layer (2, 3) can be made of thermoplastic materials respectively.

热可塑性材料为聚丙烯、聚乙烯、聚苯乙烯、乙烯醋酸—乙烯酯、聚氯乙烯、ABS或尼龙材料。The thermoplastic material is polypropylene, polyethylene, polystyrene, ethylene vinyl acetate, polyvinyl chloride, ABS or nylon material.

上述三层共挤发泡板的制备方法,高发泡塑料层(1)采用物理发泡方法制成,以二氧化碳或丙烷或丁烷气体作为发泡剂,直接打入挤押出机,制成密度为0.03g/cm3~0.6g/cm3的高发泡塑料层(1)。高发泡塑料层(1)亦可采用回收再生料制成。In the preparation method of the above-mentioned three-layer co-extruded foamed board, the high-foamed plastic layer (1) is made by physical foaming method, and carbon dioxide or propane or butane gas is used as a foaming agent, and directly injected into an extruder to make a density The highly foamed plastic layer (1) is 0.03g/cm 3 -0.6g/cm 3 . The highly foamed plastic layer (1) can also be made of recycled materials.

本人发现食品包装、承纳的容器大量采用聚苯乙烯PS发泡材料制成,PS发泡材料难以回收,会造成严重的白色污染。而三层共挤发泡板的降解性能明显优于聚苯乙烯PS发泡材料。用三层共挤发泡板可代替聚苯乙烯PS发泡材料制成食品包装、承纳的容器大量,如方便面的碗、快餐盒、杯子,超市上出售的各种水果、熟食品、半成品的包装盒,用于微波炉的食品托盘、器皿。但为达到餐具卫生标准,一般三层共挤发泡板的中间层高发泡塑料层(1)不采用回收再生料。I found that a large number of food packaging and storage containers are made of polystyrene PS foam material, which is difficult to recycle and will cause serious white pollution. The degradation performance of the three-layer co-extruded foam board is obviously better than that of polystyrene PS foam material. The three-layer co-extruded foam board can replace polystyrene PS foam material to make food packaging and accommodate a large number of containers, such as instant noodle bowls, fast food boxes, cups, various fruits, cooked foods, and semi-finished products sold in supermarkets. Packaging boxes, food trays, utensils for microwave ovens. But in order to reach tableware hygienic standards, generally the middle layer high foaming plastic layer (1) of three-layer co-extruded foam board does not adopt reclaimed recycled materials.

三层共挤发泡板它较好的能量吸附性,良好的耐应力开裂性能,优良的力学性能,使它可用于制备箱包的外壳,如旅行箱包、背囊、电脑包、运动包、书包、塑料箱的外壳。The three-layer co-extruded foam board has good energy absorption, good stress crack resistance, and excellent mechanical properties, so that it can be used to prepare the shell of bags, such as travel bags, backpacks, computer bags, sports bags, school bags. , The shell of the plastic box.

三层共挤发泡板它良好的的耐应力开裂性能,优良的力学性能,再加上它的良好的焊接性,使它可用于制备汽车的内衬板、挡泥板。The three-layer co-extruded foam board has good stress cracking resistance, excellent mechanical properties, and its good weldability, so that it can be used to prepare automobile inner linings and fenders.

本人又发现有些汽车的内衬板、隔热板、隔音板、挡泥板采用硬塑料板,硬塑料板重量大,并且作为隔热板、隔音板时还需要在板的内面加装发泡材料才能实现隔热、隔音的功能。I also found that the inner lining board, heat insulation board, sound insulation board and fender of some cars are made of hard plastic board. The material can realize the function of heat insulation and sound insulation.

而三层共挤发泡板具有良好隔热隔音性,它可隔音隔热,它的热导率比硬质泡沫塑料板、发泡聚乙烯PE都低,并且它具有良好的耐应力开裂性能,优良的力学性能,因此它是较为理想的保温隔热材料、隔音材料。它可用于制备隔热保温板,还可用于制备隔音板。如汽车的隔热板、隔音板、寒带房屋的保温板。The three-layer co-extruded foam board has good heat and sound insulation, it can sound and heat insulation, its thermal conductivity is lower than that of rigid foam plastic board and foamed polyethylene PE, and it has good stress crack resistance , Excellent mechanical properties, so it is an ideal thermal insulation material, sound insulation material. It can be used to prepare thermal insulation boards, and can also be used to prepare sound insulation boards. Such as automobile heat insulation boards, sound insulation boards, and insulation boards for houses in cold regions.

如果用三层共挤发泡板制成汽车的内衬板、隔热板、隔音板、挡泥板,不但可以减轻重量,并且由于该塑料板的中间夹有微发泡层,本身就具有隔热、隔音功能,用它制成的隔热板、隔音板就无需在板的内面加装发泡材料,这样制做汽车隔热板、隔音板的工艺简化,可降低成本、提高效率。If a three-layer co-extruded foam board is used to make the inner liner board, heat insulation board, sound insulation board, and fender of the car, it can not only reduce the weight, but also because the micro-foaming layer is sandwiched in the plastic board, it has its own characteristics. With heat insulation and sound insulation functions, the heat insulation board and sound insulation board made of it do not need to install foam material on the inner surface of the board, so the process of making automobile heat insulation board and sound insulation board is simplified, which can reduce costs and improve efficiency.

上述应用三层共挤发泡板制备的产品,除餐具外其余产品的中间的高发泡塑料层均可使用回收再生料制成,这会使成本大幅降低,而且因其中间的高发泡塑料层使用回收再生料制成,使其本身就可再回收,三层共挤发泡板较之其它塑料相比,对环保具有革命性的影响,它可回收再生,可以符合环保的要求。For the above-mentioned products prepared using three-layer co-extruded foam boards, the middle high-foaming plastic layer of the other products except tableware can be made of recycled materials, which will greatly reduce the cost, and because of the high-foaming plastic layer in the middle It is made of recycled materials so that it can be recycled. Compared with other plastics, the three-layer co-extruded foam board has a revolutionary impact on environmental protection. It is recyclable and can meet the requirements of environmental protection.

上述的三层共挤发泡板的用途,它用于制备容器的外壳或内壳。The use of the above-mentioned three-layer co-extruded foam board is used to prepare the outer shell or inner shell of the container.

它用于制备隔热保温板。It is used in the preparation of thermal insulation boards.

本发明将高发泡塑料层放在中间较厚的那层,硬质塑料层处于高发泡塑料层两表面上较薄的那层,这样复合成的塑料板材重量可减轻20%~95%,而表面物理刚性仍大幅度提高;且表面色相好,可根据需要做成不同的颜色;由于高发泡塑料层、硬质塑料层采用同类别塑材,即使不同种,在制造生产过程中可一次成型,这样一来降低了加工费用,高发泡塑料层也可采用回收再生料制成,不但符合环保要求同时又减少了成本,这两个因素都使得成本大为降低。In the present invention, the high-foaming plastic layer is placed on the thicker layer in the middle, and the hard plastic layer is placed on the thinner layer on both surfaces of the high-foaming plastic layer, so that the weight of the composite plastic sheet can be reduced by 20% to 95%. The physical rigidity of the surface is still greatly improved; and the surface hue is good, and can be made into different colors according to needs; because the high-foaming plastic layer and the hard plastic layer are made of the same type of plastic material, even if they are of different types, they can be molded at one time during the manufacturing process , In this way, the processing cost is reduced, and the high-foaming plastic layer can also be made of recycled materials, which not only meets the environmental protection requirements but also reduces the cost. These two factors have greatly reduced the cost.

Claims (15)

1. three-layer co-extruded foaming plate (4) is characterized in that: it comprises high foaming plastic layer (1), and two surfaces of high foaming plastic layer (1) are covered with hard plastic layer (2,3) respectively.
2. three-layer co-extruded foaming plate as claimed in claim 1 (4) is characterized in that: the thickness of high foaming plastic layer (1) is bigger than hard plastic layer (2,3) thickness separately.
3. three-layer co-extruded foaming plate as claimed in claim 1 or 2 (4) is characterized in that: high foaming plastic layer (1), hard plastic layer (2,3) can adopt the thermoplasticity material to make respectively.
4. three-layer co-extruded foaming plate as claimed in claim 3 (4) is characterized in that: the thermoplasticity material is polypropylene, polyethylene, polystyrene, ethene acetic acid-vinyl acetate, polyvinyl chloride, ABS or nylon material.
5. the preparation method of three-layer co-extruded foaming plate as claimed in claim 1, it is characterized in that: high foaming plastic layer (1) adopts physical foaming method to make, as blowing agent, directly squeeze into crowded extruder with carbon dioxide or propane or butane gas, making density is 0.03g/cm 3~0.6g/cm 3Height foaming plastic layer (1).
6. the preparation method of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: high foaming plastic layer (1) can adopt the reclaiming material to make.
7. the purposes of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: it is used to prepare the shell or the inner casing of container.
8. the purposes of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: it is used to prepare heat insulating board.
9. the purposes of three-layer co-extruded foaming plate as claimed in claim 1 is characterized in that: it is used to prepare sound panel.
10. the purposes of three-layer co-extruded foaming plate as claimed in claim 7, it is characterized in that: it is used to prepare packaging for foodstuff, holds the container of receiving, bowl, mess-tin, cup as instant noodles, the various fruit of selling on the supermarket, delicatessen, half-finished packing box are used for food service tray, the vessel of micro-wave oven.
11. the purposes of three-layer co-extruded foaming plate as claimed in claim 7 is characterized in that: it is used to prepare the shell of case and bag, as the shell of luggage, knapsack, computer package, sports bag, school bag, plastic box.
12. the purposes of three-layer co-extruded foaming plate as claimed in claim 7 is characterized in that: it is used to prepare interior lining panel, the dashboard of automobile.
13. the purposes of three-layer co-extruded foaming plate as claimed in claim 8 is characterized in that: it is used to prepare the thermal insulation board of automobile.
14. the purposes of three-layer co-extruded foaming plate as claimed in claim 8 is characterized in that: it is used to prepare the warming plate in house, frigid zone.
15. the purposes of three-layer co-extruded foaming plate as claimed in claim 9 is characterized in that: it is used to prepare the sound panel of automobile.
CN 03140404 2003-09-05 2003-09-05 Three-layer co-extruded foam board and its use and preparation method Pending CN1590070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03140404 CN1590070A (en) 2003-09-05 2003-09-05 Three-layer co-extruded foam board and its use and preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03140404 CN1590070A (en) 2003-09-05 2003-09-05 Three-layer co-extruded foam board and its use and preparation method

Publications (1)

Publication Number Publication Date
CN1590070A true CN1590070A (en) 2005-03-09

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102085689A (en) * 2010-11-26 2011-06-08 卢文成 Production method for inorganic foaming board
CN103832031A (en) * 2014-03-17 2014-06-04 罗景明 Foaming regeneration environment-friendly plastic sheet and preparation method thereof
CN109747227A (en) * 2017-11-06 2019-05-14 苏州柯莱美高分子材料科技有限公司 A kind of resin plate and preparation method for silicon wafer cutting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102085689A (en) * 2010-11-26 2011-06-08 卢文成 Production method for inorganic foaming board
CN103832031A (en) * 2014-03-17 2014-06-04 罗景明 Foaming regeneration environment-friendly plastic sheet and preparation method thereof
CN103832031B (en) * 2014-03-17 2016-02-17 罗景明 A kind of foaming regenerated environment protecting plastic sheet and preparation method
CN109747227A (en) * 2017-11-06 2019-05-14 苏州柯莱美高分子材料科技有限公司 A kind of resin plate and preparation method for silicon wafer cutting

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