阅读说明：本技术 一种高强度复合型eps泡沫保温箱 (Compound EPS foam insulation can of high strength ) 是由 黄洁 于 2020-12-04 设计创作，主要内容包括：本发明属于EPS发泡技术领域,具体涉及一种高强度复合型EPS泡沫保温箱。该保温箱使用EPS复合板材拼合得到,EPS复合板材通过两步法制得。(S1)将一层抗拉纤维网平铺在成型模具底部,在模具中充入EPS发泡原料,加热发泡成型,得到板材半成品。(S2)将板材半成品置于另一模具中,板材半成品带有抗拉纤维网的一面朝下,在板材半成品上再铺设一层抗拉纤维网；向模具中充入EPS发泡原料成型得到。本发明提供的高强度复合型EPS泡沫保温箱,板材通过两次发泡制成,外层发泡材料密度高、硬度大、强度高,且两侧一体包覆有抗拉纤维网具有很好的抗冲击性能；内层发泡材料密度低,硬度和强度适中,具有优异的缓冲吸能作用。(The invention belongs to the technical field of EPS foaming, and particularly relates to a high-strength composite EPS foam insulation box. The insulation can is obtained by splicing EPS composite boards, and the EPS composite boards are prepared by a two-step method. (S1) a layer of tensile fiber net is flatly laid at the bottom of a forming die, EPS foaming raw materials are filled into the die, and heating foaming forming is carried out to obtain a semi-finished product of the plate. (S2) placing the semi-finished plate in another mould, wherein the side of the semi-finished plate with the tensile fiber net faces downwards, and paving a layer of tensile fiber net on the semi-finished plate; and charging EPS foaming raw materials into the mold for molding to obtain the product. According to the high-strength composite EPS foam insulation box provided by the invention, the plate is prepared by foaming twice, the outer layer foaming material is high in density, high in hardness and high in strength, and the tensile fiber nets integrally coated on the two sides of the plate have good impact resistance; the inner layer foaming material has low density, moderate hardness and strength and excellent buffering and energy absorbing functions.)

1. The utility model provides a compound EPS foam insulation can of high strength which characterized in that: firstly, preparing an EPS composite board, and then splicing the EPS composite board to obtain an EPS foam insulation can; the EPS composite board is prepared by the following steps:

(S1) laying a layer of tensile fiber net at the bottom of a forming mold, filling EPS foaming raw materials into the mold, and heating, foaming and forming to obtain a semi-finished plate;

(S2) placing the semi-finished plate in another mould, wherein the height of the mould cavity is 2 times of the thickness of the semi-finished plate, the side of the semi-finished plate with the tensile fiber net faces downwards, and a layer of tensile fiber net is laid on the semi-finished plate; and (3) charging EPS foaming raw materials into the mould, heating, foaming and molding to obtain the EPS composite board.

2. The high-strength composite EPS foam insulation can of claim 1, characterized in that: in the step (S1), the tensile fiber web is a carbon fiber web.

3. The high-strength composite EPS foam insulation can of claim 2, characterized in that: the carbon fiber net is immersed in the following solution and dried before being laid in the mold: 100 parts of cyclohexane, 4-6 parts of diethanolamine, 5-8 parts of glycol, 2-4 parts of gamma-aminopropyltriethoxysilane and 1-3 parts of isocyanate.

4. The high-strength composite EPS foam insulation can of claim 1, characterized in that: in the step (S2), the tensile fiber web is a glass fiber mesh cloth.

5. The high-strength composite EPS foam insulation can of claim 4, characterized in that: the glass fiber mesh cloth is immersed in the following solution and dried before use: 100 parts of cyclohexane, 7-10 parts of diethanolamine, 8-10 parts of ethylene glycol, 5-9 parts of gamma-aminopropyltriethoxysilane and 3-6 parts of isocyanate.

6. The high-strength composite EPS foam insulation can of claim 1, characterized in that: in the step (S1), the EPS foaming raw material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 35-40 times.

7. The high-strength composite EPS foam insulation can of claim 1, characterized in that: in the step (S2), the EPS foaming raw material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of the foaming volume is controlled to be 70-75 times.

Technical Field

The invention belongs to the technical field of EPS foaming materials, and particularly relates to a high-strength composite EPS foam insulation box.

Background

The EPS foam material has the characteristics of light weight, heat insulation, sound insulation and the like, and is commonly used for packaging products of electronic commerce, such as outer packaging boxes of wine products, fresh products and the like. However, there is a certain contradiction between strength and hardness when the packaging box is made of EPS material. In order to ensure that the packing box has good buffering performance, the hardness of the packing box needs to be properly controlled, but the strength of the packing box is reduced while the hardness is controlled, so that the service life of the packing box is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a high-strength composite EPS foam insulation can.

The invention is realized by the following technical scheme: firstly, preparing an EPS composite board, and then splicing the EPS composite board to obtain an EPS foam insulation can; the EPS composite board is prepared by the following steps.

(S1) a layer of tensile fiber net is flatly laid at the bottom of a forming die, EPS foaming raw materials are filled into the die, and heating foaming forming is carried out to obtain a semi-finished product of the plate.

(S2) placing the semi-finished plate in another mould, wherein the height of the mould cavity is 2 times of the thickness of the semi-finished plate, the side of the semi-finished plate with the tensile fiber net faces downwards, and a layer of tensile fiber net is laid on the semi-finished plate; and (3) charging EPS foaming raw materials into the mould, heating, foaming and molding to obtain the EPS composite board.

Preferably, in the step (S1), the tensile fiber web is a carbon fiber web. And before being laid in a mould, the carbon fiber net is immersed in the following solution and dried: 100 parts of cyclohexane, 4-6 parts of diethanolamine, 5-8 parts of glycol, 2-4 parts of gamma-aminopropyltriethoxysilane and 1-3 parts of isocyanate.

Preferably, in the step (S2), the tensile fiber net is a glass fiber mesh cloth. And, the glass fiber mesh cloth is immersed in the following solution and dried before use: 100 parts of cyclohexane, 7-10 parts of diethanolamine, 8-10 parts of ethylene glycol, 5-9 parts of gamma-aminopropyltriethoxysilane and 3-6 parts of isocyanate.

Further, in the step (S1), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 35-40 times.

Further, in the step (S2), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 70-75 times.

Has the advantages that: compared with the prior art, the high-strength composite EPS foam insulation can provided by the invention is prepared by foaming the plates twice, and has the characteristics of good integrity, firmness, reliability and the like. The outer layer foaming material has high density, high hardness and high strength, and the tensile fiber net integrally coated on the two sides has good impact resistance; the inner layer foaming material has low density, moderate hardness and strength and excellent buffering and energy absorbing functions. In addition, the tensile fiber web is soaked in cyclohexane solution containing diethanolamine, glycol, gamma-aminopropyltriethoxysilane and isocyanate before use, so that the bonding force with EPS foam is enhanced, and the delamination phenomenon in the long-term use process is avoided.

Detailed Description

The invention is further illustrated by the following specific examples, which are illustrative and intended to illustrate the problem and explain the invention, but not limiting.

Example 1

The invention discloses a high-strength composite EPS foam insulation can, which is realized by the following technical scheme: firstly, preparing an EPS composite board, and then splicing the EPS composite board to obtain an EPS foam insulation can; the EPS composite board is prepared by the following steps.

(S1) a layer of tensile fiber net is flatly laid at the bottom of a forming die, EPS foaming raw materials are filled into the die, and heating foaming forming is carried out to obtain a semi-finished product of the plate.

(S2) placing the semi-finished plate in another mould, wherein the height of the mould cavity is 2 times of the thickness of the semi-finished plate, the side of the semi-finished plate with the tensile fiber net faces downwards, and a layer of tensile fiber net is laid on the semi-finished plate; and (3) charging EPS foaming raw materials into the mould, heating, foaming and molding to obtain the EPS composite board.

In the step (S1), the tensile fiber web is a carbon fiber web. And before being laid in a mould, the carbon fiber net is immersed in the following solution and dried: 100 parts of cyclohexane, 5.2 parts of diethanolamine, 6.5 parts of glycol, 3 parts of gamma-aminopropyltriethoxysilane and 2 parts of isocyanate.

In the step (S2), the tensile fiber web is a glass fiber mesh cloth. And, the glass fiber mesh cloth is immersed in the following solution and dried before use: 100 parts of cyclohexane, 8 parts of diethanolamine, 9.2 parts of ethylene glycol, 6 parts of gamma-aminopropyltriethoxysilane and 4.5 parts of isocyanate.

In the step (S1), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of the foaming volume is controlled to be 38 times.

In the step (S2), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 72 times.

Example 2

The invention discloses a high-strength composite EPS foam insulation can, which is realized by the following technical scheme: firstly, preparing an EPS composite board, and then splicing the EPS composite board to obtain an EPS foam insulation can; the EPS composite board is prepared by the following steps.

(S1) a layer of tensile fiber net is flatly laid at the bottom of a forming die, EPS foaming raw materials are filled into the die, and heating foaming forming is carried out to obtain a semi-finished product of the plate.

(S2) placing the semi-finished plate in another die, wherein the die cavity height is 2.5 times of the thickness of the semi-finished plate, the side of the semi-finished plate with the tensile fiber net faces downwards, and a layer of tensile fiber net is laid on the semi-finished plate; and (3) charging EPS foaming raw materials into the mould, heating, foaming and molding to obtain the EPS composite board.

In the step (S1), the tensile fiber web is a carbon fiber web. And before being laid in a mould, the carbon fiber net is immersed in the following solution and dried: 100 parts of cyclohexane, 5 parts of diethanolamine, 7 parts of ethylene glycol, 2.5 parts of gamma-aminopropyltriethoxysilane and 2.2 parts of isocyanate.

In the step (S2), the tensile fiber web is a glass fiber mesh cloth. And, the glass fiber mesh cloth is immersed in the following solution and dried before use: 100 parts of cyclohexane, 8 parts of diethanolamine, 9 parts of ethylene glycol, 7 parts of gamma-aminopropyltriethoxysilane and 5 parts of isocyanate.

In the step (S1), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 40 times.

In the step (S2), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 72 times.

Example 3

The invention discloses a high-strength composite EPS foam insulation can, which is realized by the following technical scheme: firstly, preparing an EPS composite board, and then splicing the EPS composite board to obtain an EPS foam insulation can; the EPS composite board is prepared by the following steps.

(S1) a layer of tensile fiber net is flatly laid at the bottom of a forming die, EPS foaming raw materials are filled into the die, and heating foaming forming is carried out to obtain a semi-finished product of the plate.

(S2) placing the semi-finished plate in another mould, wherein the height of the mould cavity is 2 times of the thickness of the semi-finished plate, the side of the semi-finished plate with the tensile fiber net faces downwards, and a layer of tensile fiber net is laid on the semi-finished plate; and (3) charging EPS foaming raw materials into the mould, heating, foaming and molding to obtain the EPS composite board.

In the step (S1), the tensile fiber web is a carbon fiber web. And before being laid in a mould, the carbon fiber net is immersed in the following solution and dried: 100 parts of cyclohexane, 4 parts of diethanolamine, 5 parts of ethylene glycol, 2 parts of gamma-aminopropyltriethoxysilane and 1 part of isocyanate.

In the step (S2), the tensile fiber web is a glass fiber mesh cloth. And, the glass fiber mesh cloth is immersed in the following solution and dried before use: 100 parts of cyclohexane, 7 parts of diethanolamine, 8 parts of ethylene glycol, 5 parts of gamma-aminopropyltriethoxysilane and 3 parts of isocyanate.

In the step (S1), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 35 times.

In the step (S2), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of the foaming volume is controlled to be 70 times.

Example 4

The invention discloses a high-strength composite EPS foam insulation can, which is realized by the following technical scheme: firstly, preparing an EPS composite board, and then splicing the EPS composite board to obtain an EPS foam insulation can; the EPS composite board is prepared by the following steps.

(S1) a layer of tensile fiber net is flatly laid at the bottom of a forming die, EPS foaming raw materials are filled into the die, and heating foaming forming is carried out to obtain a semi-finished product of the plate.

(S2) placing the semi-finished plate in another mould, wherein the height of the mould cavity is 2 times of the thickness of the semi-finished plate, the side of the semi-finished plate with the tensile fiber net faces downwards, and a layer of tensile fiber net is laid on the semi-finished plate; and (3) charging EPS foaming raw materials into the mould, heating, foaming and molding to obtain the EPS composite board.

In the step (S1), the tensile fiber web is a carbon fiber web. And before being laid in a mould, the carbon fiber net is immersed in the following solution and dried: 100 parts of cyclohexane, 6 parts of diethanolamine, 8 parts of ethylene glycol, 4 parts of gamma-aminopropyltriethoxysilane and 3 parts of isocyanate.

In the step (S2), the tensile fiber web is a glass fiber mesh cloth. And, the glass fiber mesh cloth is immersed in the following solution and dried before use: 100 parts of cyclohexane, 10 parts of diethanol amine, 10 parts of ethylene glycol, 9 parts of gamma-aminopropyl triethoxysilane and 6 parts of isocyanate.

In the step (S1), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of foaming volume is controlled to be 40 times.

In the step (S2), the EPS foaming material is expandable EPS beads, the foaming temperature is 90 ℃, and the expansion coefficient of the foaming volume is controlled to be 75 times.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.