阅读说明：本技术 一种聚氨酯发泡结构复合地板及其制备工艺 (Polyurethane foaming structure composite floor and preparation process thereof ) 是由 江玉胜 张洪鹏 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种聚氨酯发泡结构复合地板及其制备工艺,包括连续长玻璃纤维,所述连续长玻璃纤维为底,向上分别为纤维立体棉布、玻璃纤维布、纤维立体面、连续长玻璃纤维,其中各层之间通过混合剂相粘接,一种聚氨酯发泡结构复合地板的制备工艺,包括上料、输送、淋胶、压合、固化定型、切割。该聚氨酯发泡结构复合地板及其制备工艺,与现有的复合板相比较之下,发泡剂：在混合剂中发泡,从而减少混合剂用量,降低复合板密度,泡沫稳定剂：使发泡剂发泡均匀稳定,渗透剂：促进混合剂向玻璃纤维渗透,催化剂：促进A与B化学反应的发生,阻燃剂：提升复合板的阻燃性能,抗紫外线吸收剂：提高复合板抗老化性能。(The invention discloses a polyurethane foam structure composite floor and a preparation process thereof, wherein the composite floor comprises continuous long glass fibers, the continuous long glass fibers are used as bottoms and are respectively a fiber three-dimensional cotton cloth, a glass fiber cloth, a fiber three-dimensional surface and continuous long glass fibers upwards, and all layers are bonded through a mixing agent. Compared with the existing composite board, the polyurethane foaming structure composite floor and the preparation process thereof have the following advantages that: foaming in the mixture, thereby reducing the dosage of the mixture, reducing the density of the composite board, and ensuring that the foam stabilizer: the foaming agent is foamed uniformly and stably, and the penetrating agent: promoting the penetration of the mixture into the glass fiber, and the catalyst: promoting the chemical reaction of A and B, and flame retardant: promote the flame retardant property of the composite board, and the ultraviolet-resistant absorbent: the ageing resistance of the composite board is improved.)

1. The utility model provides a polyurethane foam structure laminate flooring, includes continuous long glass fiber (1), continuous long glass fiber (1) is the end, upwards is fibre three-dimensional cotton (2), glass fiber cloth (3), fibre three-dimensional face (4), continuous long glass fiber (1) respectively, bonds through mixture C between wherein each layer mutually, mixture C is produced by the mixture of A, B two kinds of components.

2. A preparation process of a polyurethane foam structure composite floor comprises the steps of feeding, conveying, glue spraying, pressing, curing and shaping and cutting, and comprises the following specific steps:

s1 feeding: the isolating layer, the continuous long glass fiber, the fiber three-dimensional cotton cloth, the glass fiber cloth, the fiber three-dimensional surface, the continuous long glass fiber and the isolating layer are sequentially arranged from left to right, so that the isolating layer is respectively arranged on the uppermost layer and the lowermost layer.

S2 conveying: each layer is conveyed by an independent rotating guide wheel, and each layer is conveyed in parallel along a uniform direction.

S3 glue: firstly, the mixture C is combined by A, B two components which are mixed to generate chemical reaction, wherein A: b ═ 0.8: 1-A: b is 1: between 0.8, A, B gets into tubular static mixing tube through the passage respectively and carries out abundant fusion reaction, and in the nozzle export dropwise add of tubular static mixing tube to setting up in each layer raw materials top, in the even liquid pipe of the clear glass of the width direction of each layer raw materials, this even liquid intraductal a plurality of apertures that set up, with the mixture liquid drop to each layer raw materials on, and the in-process that moves forward lasts the dropwise add, the lin rubber tube sets up the end position at every layer of ejection of compact, set up the scraper blade at even liquid pipe place ahead regulation again, the scraper blade has the certain distance apart from each layer, scrape the glue solution of dropwise add to each layer evenly.

S4, pressing: after being uniformly scraped, the glue solution enters a bell mouth extrusion compaction die under the conveying of a rotary guide wheel, so that the interlayer to be extruded completely penetrates into the glass fiber layer, and the bonding layer forms a thinner composite plate with considerable strength.

S5, curing and shaping: under traction force, the composite sheet continues to move forward, gets into the heat preservation track, controls certain temperature and speed, and the composite sheet body is peeled off the isolation layer through power take-up equipment to further the component fuses in the composite sheet.

And S6, the composite board body continues to move forward, and the composite board body is cut to a fixed length.

3. The composite floor board with the polyurethane foam structure and the preparation process thereof according to claim 2, wherein the polyurethane foam structure comprises the following components: the main components of A are polyether polyol and an auxiliary agent, the polyether polyol accounts for 96 percent, the auxiliary agent accounts for 4 percent, the auxiliary agent comprises a foaming agent, a foam stabilizer, a penetrating agent, a filling agent, a catalyst, a flame retardant, a flatting agent, a dispersing agent and an ultraviolet-resistant absorbent, and B is isocyanate.

4. The composite floor board with the polyurethane foam structure and the preparation process thereof according to claim 2, wherein the polyurethane foam structure comprises the following components: the heat preservation temperature of the heat preservation crawler belt is 40-80 ℃, the running speed of the composite board between the heat preservation crawler belt layers is 0.8-1.5m/min, and the two heat preservation crawler belts are distributed up and down symmetrically.

Technical Field

The invention relates to the technical field of composite boards, in particular to a polyurethane foam structure composite floor and a preparation process thereof.

Background

At present, the bottom plate of the carriage for logistics transportation at home and abroad is usually of a wood floor structure and a metal plate structure. The metal structure flooring has high solid strength but heavy weight and poor corrosion resistance. The floor with the two structures is particularly in the field of container floors for ships and ocean navigation, and is corroded by ocean humid climate and sea water of sea waves, the floor with the two structures has one surface with defects, the metal floor must be coated with antirust paint frequently, and the wooden floor is cracked by seawater soaking and is seriously layered, so that the strength is reduced and even the wooden floor is scrapped. The wooden floor structure is the waterproof corrosion resisting property of reinforcing floor, coats the crust on a layer of lacquer painting or surface on the floor, and the transport of goods can cause the damage of colliding with of ground lacquer painting to reduce the waterproof corrosion resisting property on ground, the flame retardant property of timber apron is also poor at the same time. In particular, the wood floor soaked in water can bulge and separate from each other, and the corrosion resistance of the wood floor is further reduced. The composite board adopted by the invention is hard and durable, has the density close to that of a wood floor, has the strength higher than that of a wood floor, is waterproof and corrosion-resistant, cannot influence the waterproof and corrosion-resistant performance after being collided and damaged, and has obviously enhanced flame retardant property.

Disclosure of Invention

The invention aims to provide a polyurethane foaming structure composite floor and a preparation process thereof, and aims to solve the problem of poor waterproof and corrosion-resistant performance of a common composite floor in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a polyurethane foam structure laminate flooring, includes continuous long glass fiber, continuous long glass fiber is the end, upwards is the three-dimensional cotton of fibre, glass fiber cloth, the three-dimensional face of fibre, continuous long glass fiber respectively, wherein bonds mutually through the mixing agent between each layer, a preparation technology of polyurethane foam structure laminate flooring, including material loading, transport, drench gluey, pressfitting, solidification design, cutting, concrete step is:

s1 feeding: the isolating layer, the continuous long glass fiber, the fiber three-dimensional cotton cloth, the glass fiber cloth, the fiber three-dimensional surface, the continuous long glass fiber and the isolating layer are sequentially arranged from left to right, so that the isolating layer is respectively arranged on the uppermost layer and the lowermost layer.

S2 conveying: each layer is conveyed by an independent rotating guide wheel, and each layer is conveyed in parallel along a uniform direction.

S3 glue: firstly, the mixture C is combined by A, B two components which are mixed to generate chemical reaction, wherein A: b ═ 0.8: 1-A: b is 1: between 0.8, A, B gets into tubular static mixing tube through the passage respectively and carries out abundant fusion reaction, and in the nozzle export dropwise add of tubular static mixing tube to setting up in each layer raw materials top, in the even liquid pipe of the clear glass of the width direction of each layer raw materials, this even liquid intraductal a plurality of apertures that set up, with the mixture liquid drop to each layer raw materials on, and the in-process that moves forward lasts the dropwise add, the lin rubber tube sets up the end position at every layer of ejection of compact, set up the scraper blade at even liquid pipe place ahead regulation again, the scraper blade has the certain distance apart from each layer, scrape the glue solution of dropwise add to each layer evenly.

S4, pressing: after being uniformly scraped, the glue solution enters a bell mouth extrusion compaction die under the conveying of a rotary guide wheel, so that the interlayer to be extruded completely penetrates into the glass fiber layer, and the bonding layer forms a thinner composite plate with considerable strength.

S5, curing and shaping: under traction force, the composite sheet continues to move forward, gets into the heat preservation track, controls certain temperature and speed, and the composite sheet body is peeled off the isolation layer through power take-up equipment to further the component fuses in the composite sheet.

And S6, the composite board body continues to move forward, and the composite board body is cut to a fixed length.

Preferably, the main components of A are polyether polyol and an auxiliary agent, the polyether polyol accounts for 96 percent, the auxiliary agent accounts for 4 percent, the auxiliary agent comprises a foaming agent, a foam stabilizer, a penetrating agent, a filling agent, a catalyst, a flame retardant, a leveling agent, a dispersing agent and an ultraviolet-resistant absorbent, and B is isocyanate.

Preferably, the heat preservation temperature of the heat preservation crawler belt is 40-80 ℃, the running speed of the composite board between the heat preservation crawler belt layers is 0.8-1.5m/min, and the two heat preservation crawler belts are distributed in an up-down symmetrical mode.

Compared with the prior art, the invention has the beneficial effects that: compared with the existing composite board, the polyurethane foaming structure composite floor and the preparation process thereof have the following advantages that: foaming in the mixture, thereby reducing the dosage of the mixture, reducing the density of the composite board, and ensuring that the foam stabilizer: the foaming agent is foamed uniformly and stably, and the penetrating agent: promoting the penetration of the mixture into the glass fiber, and the catalyst: promoting the chemical reaction of A and B, and flame retardant: promote the flame retardant property of the composite board, and the ultraviolet-resistant absorbent: the ageing resistance of the composite board is improved. Therefore, the waterproof, fireproof and anticorrosive performances of the composite board under the process are improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. continuous long glass fiber, 2, fiber three-dimensional cotton cloth, 3, glass fiber cloth, 4, fiber three-dimensional surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a polyurethane foam structure laminate flooring and preparation technology thereof, includes continuous long glass fiber 1, and continuous long glass fiber 1 is the end, upwards is the three-dimensional cotton 3 of fibre, glass fiber cloth 4, the three-dimensional face of fibre 5, continuous long glass fiber 1 respectively, bonds through the mixture phase wherein between each layer, and preparation technology includes material loading, transport, drenches gluey, pressfitting, solidification design, cutting, and specific step is:

s1 feeding: the isolating layer, the continuous long glass fiber, the fiber three-dimensional cotton cloth, the glass fiber cloth, the fiber three-dimensional surface, the continuous long glass fiber and the isolating layer are sequentially arranged from left to right, so that the isolating layer is respectively arranged on the uppermost layer and the lowermost layer.

S2 conveying: each layer is conveyed by an independent rotating guide wheel, and each layer is conveyed in parallel along a uniform direction.

S3 glue: firstly, the mixture C is combined by A, B two components which are mixed to generate chemical reaction, wherein A: b ═ 0.8: 1-A: b is 1: 0.8 between, A, B fully fuses the reaction through the guide tube entering tubular static mixing tube respectively (202011265816.9 can refer to this tubular static mixing tube), and in the nozzle export dropwise add of tubular static mixing tube to setting up in each layer raw materials top, the even liquid pipe of transparent glass of the width (the width is generally 1.2m) direction of each layer raw materials, this even liquid intraductal a plurality of apertures of setting up, with the mixed liquid drop to each layer raw materials on, and the in-process that moves forward lasts the dropwise add, the lin rubber tube sets up the end position at every layer of ejection of compact, set up the scraper blade at even liquid pipe place ahead regulation again, the scraper blade has the certain distance apart from each layer, scrape the glue solution of dropwise add to each layer evenly.

S4, pressing: after being uniformly scraped, the glue solution enters a bell mouth extrusion compaction die under the conveying of a rotary guide wheel, so that the interlayer to be extruded completely penetrates into the glass fiber layer, and the bonding layer forms a thinner composite plate with considerable strength.

S5, curing and shaping: under traction force, the composite sheet continues to move forward, gets into the heat preservation track, controls certain temperature and speed, and the composite sheet body is peeled off the isolation layer through power take-up equipment to further the component fuses in the composite sheet.

And S6, the composite board body continues to move forward, and the composite board body is cut to a fixed length.

The main components of A are polyether polyol and an auxiliary agent, the polyether polyol accounts for 96 percent, the auxiliary agent accounts for 4 percent, the auxiliary agent comprises a foaming agent, a foam stabilizer, a penetrating agent, a filling agent, a catalyst, a flame retardant, a flatting agent, a dispersing agent and an ultraviolet-resistant absorbent, and the foaming agent comprises the following components: foaming in the mixture, thereby reducing the dosage of the mixture, reducing the density of the composite board, and ensuring that the foam stabilizer: the foaming agent is foamed uniformly and stably, and the penetrating agent: promoting the penetration of the mixture into the glass fiber, and the catalyst: promoting the chemical reaction of A and B, and flame retardant: promote the flame retardant property of the composite board, and the ultraviolet-resistant absorbent: the ageing resistance of the composite board is improved. Therefore, the waterproof, fireproof and anticorrosive performances of the composite board under the process are improved, and the waterproof, fireproof and anticorrosive performances are realized mainly by the foaming agent and the foam stabilizer. The foaming process is mainly completed in the heat preservation crawler belt (the stable temperature in the heat preservation crawler belt is beneficial to the realization of the process). In the foaming process, the foam is increased and uniformly distributed in the composite plate body to form a porous skeleton structure, the structural strength is further improved, the B is isocyanate, the heat preservation temperature of the heat preservation crawler is 40-80 ℃, the running speed of the composite plate between the heat preservation crawler layers is 0.8-1.5m/min, the two heat preservation crawler layers are vertically and symmetrically distributed, and the fiber layer and the mixed liquid layer can be increased or reduced according to the thickness requirement.

The glass fiber can be glass fiber yarn, continuous long glass fiber, glass fiber felt, glass stereo cotton and glass fiber cloth, and the glass fiber is presented or made into sheets and rolled for standby.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.