CN112622139A - Compound EPS foam insulation can of high strength - Google Patents
Compound EPS foam insulation can of high strength Download PDFInfo
- Publication number
- CN112622139A CN112622139A CN202011400153.7A CN202011400153A CN112622139A CN 112622139 A CN112622139 A CN 112622139A CN 202011400153 A CN202011400153 A CN 202011400153A CN 112622139 A CN112622139 A CN 112622139A
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- CN
- China
- Prior art keywords
- eps
- foaming
- parts
- semi
- foam insulation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/60—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
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.
Description
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.
Claims (7)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400153.7A CN112622139A (en) | 2020-12-04 | 2020-12-04 | Compound EPS foam insulation can of high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011400153.7A CN112622139A (en) | 2020-12-04 | 2020-12-04 | Compound EPS foam insulation can of high strength |
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| Publication Number | Publication Date |
|---|---|
| CN112622139A true CN112622139A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011400153.7A Pending CN112622139A (en) | 2020-12-04 | 2020-12-04 | Compound EPS foam insulation can of high strength |
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| CN (1) | CN112622139A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202416611U (en) * | 2012-02-03 | 2012-09-05 | 济南圣泉集团股份有限公司 | Reinforced foam insulation board |
| CN202990143U (en) * | 2012-12-28 | 2013-06-12 | 河南省博德家辉新型建筑材料有限公司 | Secondary foaming polyurethane sandwich panel |
| CN203864124U (en) * | 2013-09-12 | 2014-10-08 | 林百川 | Polystyrene composite layer with density gradient |
| CN106084749A (en) * | 2016-06-16 | 2016-11-09 | 江苏新光环保工程有限公司 | A kind of polyurethane sound absorption material and preparation method thereof |
| CN107757011A (en) * | 2017-10-19 | 2018-03-06 | 河北科莱达建材有限公司 | A kind of foamed sheet material of compound concrete-cored EPS and its production technology |
| CN207607849U (en) * | 2017-07-31 | 2018-07-13 | 上海易彬科技有限公司 | A kind of graphene EPS incubators |
| JP2018167510A (en) * | 2017-03-30 | 2018-11-01 | 積水化成品工業株式会社 | Composite foam, and, method for producing composite foam |
| CN208964843U (en) * | 2018-09-12 | 2019-06-11 | 中山波利马塑胶科技有限公司 | A kind of incubator plate with multi-layer structure |
| CN110483720A (en) * | 2019-08-27 | 2019-11-22 | 天津工业大学 | The composite foam material and its preparation method and application of functionally gradient variation structure |
| CN111251681A (en) * | 2020-01-13 | 2020-06-09 | 江苏雅克科技股份有限公司 | Cryogenic heat-preservation composite sandwich board and preparation method thereof |
-
2020
- 2020-12-04 CN CN202011400153.7A patent/CN112622139A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202416611U (en) * | 2012-02-03 | 2012-09-05 | 济南圣泉集团股份有限公司 | Reinforced foam insulation board |
| CN202990143U (en) * | 2012-12-28 | 2013-06-12 | 河南省博德家辉新型建筑材料有限公司 | Secondary foaming polyurethane sandwich panel |
| CN203864124U (en) * | 2013-09-12 | 2014-10-08 | 林百川 | Polystyrene composite layer with density gradient |
| CN106084749A (en) * | 2016-06-16 | 2016-11-09 | 江苏新光环保工程有限公司 | A kind of polyurethane sound absorption material and preparation method thereof |
| JP2018167510A (en) * | 2017-03-30 | 2018-11-01 | 積水化成品工業株式会社 | Composite foam, and, method for producing composite foam |
| CN207607849U (en) * | 2017-07-31 | 2018-07-13 | 上海易彬科技有限公司 | A kind of graphene EPS incubators |
| CN107757011A (en) * | 2017-10-19 | 2018-03-06 | 河北科莱达建材有限公司 | A kind of foamed sheet material of compound concrete-cored EPS and its production technology |
| CN208964843U (en) * | 2018-09-12 | 2019-06-11 | 中山波利马塑胶科技有限公司 | A kind of incubator plate with multi-layer structure |
| CN110483720A (en) * | 2019-08-27 | 2019-11-22 | 天津工业大学 | The composite foam material and its preparation method and application of functionally gradient variation structure |
| CN111251681A (en) * | 2020-01-13 | 2020-06-09 | 江苏雅克科技股份有限公司 | Cryogenic heat-preservation composite sandwich board and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王文广 主编: "《聚合物改性原理》", 31 March 2018, 中国轻工业出版社, pages: 83 - 84 * |
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Application publication date: 20210409 |