CN103009736A - Foaming wood-plastic composite for bottom plate of container and fabrication method of foaming wood-plastic composite - Google Patents

Foaming wood-plastic composite for bottom plate of container and fabrication method of foaming wood-plastic composite Download PDF

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Publication number
CN103009736A
CN103009736A CN2012105667703A CN201210566770A CN103009736A CN 103009736 A CN103009736 A CN 103009736A CN 2012105667703 A CN2012105667703 A CN 2012105667703A CN 201210566770 A CN201210566770 A CN 201210566770A CN 103009736 A CN103009736 A CN 103009736A
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CN
China
Prior art keywords
plastic composite
foaming wood
wood
bottom plate
resin
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Application number
CN2012105667703A
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Chinese (zh)
Inventor
宋艳江
Original Assignee
无锡顺铉新材料有限公司
杭州师范大学
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Application filed by 无锡顺铉新材料有限公司, 杭州师范大学 filed Critical 无锡顺铉新材料有限公司
Priority to CN2012105667703A priority Critical patent/CN103009736A/en
Publication of CN103009736A publication Critical patent/CN103009736A/en

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Abstract

The invention relates to a foaming wood-plastic composite for a bottom plate of a container. The wood-plastic composite comprises a foaming wood-plastic composite core plate, an adhesive layer and a glass fiber reinforced plastic surface layer. A fabrication method comprises the steps of (1) fabricating the foaming wood-plastic composite core plate; (2) coating the surface of the core plate with a hot melt adhesive membrane directly, or covering the surface of the core plate by the adhesive layer with a coextrusion method, (3) fabricating continuous glass fiber prepreg, wherein continuous fibers are subjected to fiber laying and beaming and steeped with resin in a steeping tank containing the thermosetting resin, the continuous fibers steeped with the resin are extruded to allow the resin to be immersed into the fibers sufficiently, the fibers are dried and compacted, and the continuous fiber prepreg is obtained, and (4) allowing the continuous fiber prepreg obtained in Step (3) and the core plate provided with the adhesive layer coating the surface and obtained in Step (2) to be extruded and cured by a forming and curing mold, and obtaining the foaming wood-plastic composite for the bottom plate of the container. The foaming wood-plastic composite is suitable for continuous forming, high in production efficiency and stable in product quality.

Description

A kind of used for bottom plate of container foaming wood-plastic composite and preparation method thereof

Technical field

The present invention relates to the container bottom board technical field, especially relate to a kind of take the foaming wood-plastic composite as main body, the watch crystal steel strengthens, can be used for wood plastic composite of container bottom board and preparation method thereof.

Background technology

Container bottom board is mounted in container base, plays the floor of carrying and restraint of loads effect.Wood floors are little because of its proportion, easily install and fix and become the main material of container bottom board.But because forest reserves transition felling, timber resources is also less and less, and the use of solid wood base plate is subject to great restriction.Wood plastic composite is the green material take waste and old wood fiber powder and polymer as primary raw material that develops in recent years, and use and processing characteristics with timber and plastics are commonly used for building template, furniture, floor etc.If be applied to container bottom board, must significantly alleviate the timber resources problem in short supply that container bottom board faces.

And the present wood plastic composite of developing mainly contains foaming and does not foam two kinds, and wherein foaming wood-plastic composite proportion is not larger, is higher than traditional timber, and its mechanical strength does not reach the standard-required of container bottom board yet.The foaming wood-plastic composite has the little advantage of proportion, even also less than traditional timber, but the standard-required of its mechanical strength and container bottom board also has larger gap.

Summary of the invention

For the problems referred to above that prior art exists, the applicant provides a kind of used for bottom plate of container foaming wood-plastic composite and preparation method thereof.The present invention is suitable for continuously shaped, and production efficiency is high, constant product quality.

Technical scheme of the present invention is as follows:

A kind of used for bottom plate of container foaming wood-plastic composite, described wood plastic composite is comprised of foaming wood-plastic composite central layer, adhesive layer, fiberglass cortex.

The preparation method is as follows:

(1) preparation foaming wood-plastic composite central layer;

(2) directly use hot melt adhesive film to be overlying on the central layer surface, or the method for employing coextrusion is at central layer surface coverage one deck adhesive layer;

(3) prepare the continuous glass fibre prepreg: after continuous fiber is arranged the yarn warping, come impregnating resin by the dipping tank that thermosetting resin is housed; Continuous fiber behind the impregnating resin is pushed, make resin fully infiltrate fiber; Compacting obtains the continuous fiber prepreg after the oven dry;

(4) central layer that the continuous fiber prepreg that step (3) is obtained, the surface that same step (2) obtains are covered with adhesive layer together, through the extruding of forming and hardening mould, solidify and obtain this used for bottom plate of container foaming wood-plastic composite.

Described foaming wood-plastic composite central layer is PVC foaming wood-plastic composite panel.The described hot melt adhesive film of step (2) is EVA or PUR hot melt adhesive film, and described adhesive layer is EVA or PUR PUR resin bed.

Thermosetting resin described in the step (3) is one or more in commercial unsaturated polyester (UP), phenolic resins, the epoxy resin.Continuous fiber described in the step (3) is one or more in the long yarn of continuous glass fibre, glass fabric, the glass mat.

Preparation foaming wood-plastic composite central layer in the step (1), foaming wood-plastic composite central layer is polyvinyl chloride (PVC) foaming wood-plastic composite panel, can be according to Chinese patent ZL200810021173.6(patent name: a kind of PVC fine foaming wood-plastic coiled material and production method thereof) be prepared.Adhesive layer described in the step (2) is EVA or PUR PUR resin bed, mainly works to cohere fiberglass cortex and foaming wood-plastic composite central layer.

The technique effect that the present invention is useful is:

(1) the present invention is take wood plastic composite as central layer, use be waste and old wood fiber powder, can save a large amount of timber resources;

(2) foaming wood-plastic composite central layer proportion used in the present invention is little (is low to moderate 0.5 ~ 0.6gcm -3), prepared container bottom board is lightweight, is convenient to transportation, processing;

(3) cortex of the present invention is glass-reinforced plastic material, can significantly improve intensity, rigidity, the wear-resisting and creep-resistant property of container bottom board, and can prepare the sheet material that satisfies the different mechanical properties demand by the control of skin thickness, and is very simple and convenient;

(5) the present invention can prepare by the selection of top layer resin the container wood plastic composite base plate of surface flame-retardant;

(6) adhesive layer of the present invention can improve the cohesive action between cortex and sandwich layer, prevents that material from use flaking, peeling.

Description of drawings

Fig. 1 is that the foaming wood-plastic central layer is extruded and surface glue adhensive layer (hot melt adhesive film) cladding process schematic diagram;

Fig. 2 is that the foaming wood-plastic central layer is extruded and surface glue adhensive layer (PUR is extruded) cladding process schematic diagram;

Fig. 3 is the preparation schematic diagram of continuous fiber prepreg;

Fig. 4 is this foaming wood-plastic composite manufacture artwork;

Fig. 5 is the schematic diagram of this foaming wood-plastic composite.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention is specifically described.Preparation method of the present invention is as follows:

(1) according to Chinese patent ZL200810021173.6(patent name: a kind of PVC fine foaming wood-plastic coiled material and production method thereof) prepare foaming wood-plastic composite central layer.What prepare is polyvinyl chloride (PVC) foaming wood-plastic composite central layer, is again the foaming wood-plastic central layer.

(2) directly use hot melt adhesive film to be overlying on the central layer surface, or the method that adopts coextrusion is at central layer surface coverage one deck adhesive layer: this step has two kinds of implementation methods:

The first as shown in Figure 1, is put into extruder 101 with the material of preparation foaming wood-plastic central layer, through foaming wood-plastic plate extrusion die 102, obtains foaming wood-plastic central layer 103, is again foaming wood-plastic composite central layer.Be covered in foaming wood-plastic central layer 103 on through hold-down roller 105 hot melt film film 104 and fit tightly with it this moment, forms hot melt adhesive layer 106.

The second as shown in Figure 2, adds the PUR resin in the extruder 201, and the adhesive of foaming wood-plastic central layer 202 in extruder 201 pastes by cross head 203, obtains one deck adhesive layer 204 on foaming wood-plastic central layer 202 surfaces.

(3) preparation continuous glass fibre prepreg, as shown in Figure 3: continuous fiber is placed on the fiber frame 301, arrange the yarn warping by warping machine 302 after, come impregnating resin by the resin impregnation tank 303 that thermosetting resin is housed; Continuous fiber behind the impregnating resin is pushed through compression roller 304, make resin fully infiltrate fiber; Then dry by drying oven 305, remove the unnecessary components such as solvent in the resin after, obtain continuous fiber prepreg 307 by compression roll 306.

(4) this foaming wood-plastic composite manufacture, as shown in Figure 4: the continuous fiber prepreg 403 that step (3) is obtained, the foaming wood-plastic central layer 401 that the surface that same step (2) obtains is covered with hot melt adhesive film or adhesive layer 402 together, through 404 extruding of solidifying and setting mould, curing, continuous fiber prepreg 403 forms one deck fiberglass cortex 405, make again continuous fiber strengthen the top layer, finally obtain this used for bottom plate of container foaming wood-plastic composite, the foaming wood-plastic composite panel that makes again the skin glass steel strengthen.

The structure of this foaming wood-plastic composite as shown in Figure 5, innermost layer is a foaming wood-plastic central layer 501, is again foaming wood-plastic composite central layer; One deck adhesive layer 502 is pasted respectively in foaming wood-plastic central layer 501 outsides, and the outermost both sides are respectively fiberglass cortexes 503, makes again continuous fiber strengthen the top layer.

Embodiment 1

(1) according to the mentioned method of Chinese patent ZL200810021173.6, to add the high-speed mixer high speed through 70 part of 50 fully dry purpose Poplar Powder, 20 part of 1250 order calcium carbonate and 1.5 parts of coupling agents (titanate esters NDZ201) first and stir 3 ~ 5min, then add 100 parts of PVC, 2 parts of organic tin stabilizers, 3.5 part Tissuemat E, 10 parts of haloflexes and 1.5 parts of blowing agent BTH further fully stir, and make mixing of materials even; Then use tapered double screw extruder with the material that mixes plastify, extruding pelletization; Then above-mentioned pellet is added in the single screw extrusion machine and extrude to get foaming wood-plastic composite central layer;

(2) thickness is pasted on above-mentioned central layer surface less than the EVA hot melt adhesive film of 0.1mm;

(3) meanwhile first 80 parts unsaturated polyester (UP) (191#), 18 parts styrene and 2 parts maleic anhydride (and additionally adding 0.2 part cumyl peroxide and 0.2 part cobalt naphthenate) are mixed in the adding resin impregnation tank; Then will be through the long yarn of continuous fiber of row's yarn warping by the resin impregnation tank impregnating resin, the continuous fiber that will flood subsequently resin makes resin fully infiltrate fiber (and controlling resin and fiber quality than being 3:7) through compression roller; Then will infiltrate fiber and remove unnecessary component (such as solvent) by drying oven, and obtain the continuous fiber prepreg through the compression roll compacting;

(4) make the foaming wood-plastic central layer that is covered with the EVA glued membrane with the continuous fiber prepreg by moulding, solidify mould, through plasticizing, extruding, solidify and namely get the foaming wood-plastic composite panel that the skin glass steel that can be used for container bottom board strengthens.

Embodiment 2

Method divided by coextrusion is squeezed into thickness less than the PUR hot melt adhesive layer of 0.2mm on foaming wood-plastic central layer top layer, substitutes directly to paste outside the cured method of PUR, and additive method as mentioned above.Each material composition and content are shown in table 1 ~ table 3, wherein table 1 is the raw material of preparation foaming wood-plastic central layer in the step (1) and the parts by weight of each raw material, table 2 is raw material and the bed thickness thereof that adhesive layer uses in the step (2), and table 3 is the raw material of continuous fiber prepreg in the step (3) and the parts by weight of each raw material.

Embodiment 3

Concrete preparation method as described in Example 2, each material form and content shown in table 1 ~ table 3.

Embodiment 4

Concrete preparation method as described in Example 1, each material form and content shown in table 1 ~ table 3.

Table 1

Table 2

Table 3

Claims (6)

1. used for bottom plate of container foaming wood-plastic composite, it is characterized in that: described wood plastic composite is comprised of foaming wood-plastic composite central layer, adhesive layer, fiberglass cortex.
2. used for bottom plate of container foaming wood-plastic composite according to claim 1 is characterized in that the preparation method is as follows:
(1) preparation foaming wood-plastic composite central layer;
(2) directly use hot melt adhesive film to be overlying on the central layer surface, or the method for employing coextrusion is at central layer surface coverage one deck adhesive layer;
(3) prepare the continuous glass fibre prepreg: after continuous fiber is arranged the yarn warping, come impregnating resin by the dipping tank that thermosetting resin is housed; Continuous fiber behind the impregnating resin is pushed, make resin fully infiltrate fiber; Compacting obtains the continuous fiber prepreg after the oven dry;
(4) central layer that the continuous fiber prepreg that step (3) is obtained, the surface that same step (2) obtains are covered with adhesive layer together, through the extruding of forming and hardening mould, solidify and obtain this used for bottom plate of container foaming wood-plastic composite.
3. used for bottom plate of container foaming wood-plastic composite according to claim 1 and 2, it is characterized in that: described foaming wood-plastic composite central layer is PVC foaming wood-plastic composite panel.
4. used for bottom plate of container foaming wood-plastic composite according to claim 1, it is characterized in that: the described hot melt adhesive film of step (2) is EVA or PUR hot melt adhesive film, described adhesive layer is EVA or PUR PUR resin bed.
5. used for bottom plate of container foaming wood-plastic composite according to claim 2, it is characterized in that: thermosetting resin described in the step (3) is one or more in commercial unsaturated polyester (UP), phenolic resins, the epoxy resin.
6. used for bottom plate of container foaming wood-plastic composite according to claim 2, it is characterized in that: continuous fiber described in the step (3) is one or more in the long yarn of continuous glass fibre, glass fabric, the glass mat.
CN2012105667703A 2012-12-25 2012-12-25 Foaming wood-plastic composite for bottom plate of container and fabrication method of foaming wood-plastic composite CN103009736A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407275A (en) * 2013-05-28 2013-11-27 常熟市金亿复合材料有限公司 Preparation method of SiO2/polyvinyl chloride composite decorating plate
CN103407166A (en) * 2013-05-28 2013-11-27 常熟市金亿复合材料有限公司 Manufacturing method of polystyrene foam plate
CN104669370A (en) * 2013-11-27 2015-06-03 上海杰事杰新材料(集团)股份有限公司 Reinforced container bottom plate and manufacturing method thereof
CN104802235A (en) * 2014-01-27 2015-07-29 上海杰事杰新材料(集团)股份有限公司 Composite board, preparation method and application thereof
CN104802231A (en) * 2014-01-27 2015-07-29 上海杰事杰新材料(集团)股份有限公司 Reinforced container soleplate and preparation method thereof
CN104802233A (en) * 2014-01-27 2015-07-29 上海杰事杰新材料(集团)股份有限公司 Container baseboard and preparation method thereof
CN105150644A (en) * 2015-07-17 2015-12-16 安徽国风木塑科技有限公司 Co-extruded wood-plastic composite material
CN105644121A (en) * 2016-01-07 2016-06-08 武汉理工大学 Manufacturing equipment for composite deck of ship
CN107399090A (en) * 2016-05-18 2017-11-28 胡海东 A kind of fiber forced foamed composite and its manufacture method
CN108189357A (en) * 2017-12-27 2018-06-22 安徽森泰木塑集团股份有限公司 The three-layer co-extruded technique of a kind of PE, hot melt adhesive, aluminium alloy
WO2019007014A1 (en) * 2017-07-03 2019-01-10 陆钉毅 Method for forming plastic floor of woven fabric laminated structure

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CN102549077A (en) * 2009-09-25 2012-07-04 横滨橡胶株式会社 Thermosetting resin composition, thermosetting resin composition for fiber-reinforced composite material, prepreg using the same, and honeycomb sandwich panel

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407166A (en) * 2013-05-28 2013-11-27 常熟市金亿复合材料有限公司 Manufacturing method of polystyrene foam plate
CN103407275A (en) * 2013-05-28 2013-11-27 常熟市金亿复合材料有限公司 Preparation method of SiO2/polyvinyl chloride composite decorating plate
CN104669370A (en) * 2013-11-27 2015-06-03 上海杰事杰新材料(集团)股份有限公司 Reinforced container bottom plate and manufacturing method thereof
CN104802235B (en) * 2014-01-27 2017-09-15 上海杰事杰新材料(集团)股份有限公司 A kind of composite board, preparation method and applications
CN104802235A (en) * 2014-01-27 2015-07-29 上海杰事杰新材料(集团)股份有限公司 Composite board, preparation method and application thereof
CN104802231A (en) * 2014-01-27 2015-07-29 上海杰事杰新材料(集团)股份有限公司 Reinforced container soleplate and preparation method thereof
CN104802233A (en) * 2014-01-27 2015-07-29 上海杰事杰新材料(集团)股份有限公司 Container baseboard and preparation method thereof
CN105150644A (en) * 2015-07-17 2015-12-16 安徽国风木塑科技有限公司 Co-extruded wood-plastic composite material
CN105150644B (en) * 2015-07-17 2017-04-19 安徽国风木塑科技有限公司 Co-extruded wood-plastic composite material
CN105644121A (en) * 2016-01-07 2016-06-08 武汉理工大学 Manufacturing equipment for composite deck of ship
CN107399090A (en) * 2016-05-18 2017-11-28 胡海东 A kind of fiber forced foamed composite and its manufacture method
WO2019007014A1 (en) * 2017-07-03 2019-01-10 陆钉毅 Method for forming plastic floor of woven fabric laminated structure
CN109208857A (en) * 2017-07-03 2019-01-15 陆钉毅 The plastic floor forming method of woven cloth layer structure
CN108189357A (en) * 2017-12-27 2018-06-22 安徽森泰木塑集团股份有限公司 The three-layer co-extruded technique of a kind of PE, hot melt adhesive, aluminium alloy

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Application publication date: 20130403