CN215435421U - Composite embossed flexible foaming thermal insulation material - Google Patents
Composite embossed flexible foaming thermal insulation material Download PDFInfo
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- CN215435421U CN215435421U CN202121583003.4U CN202121583003U CN215435421U CN 215435421 U CN215435421 U CN 215435421U CN 202121583003 U CN202121583003 U CN 202121583003U CN 215435421 U CN215435421 U CN 215435421U
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Abstract
The utility model discloses a composite embossed flexible foaming heat-insulation material which comprises a heat-insulation layer, an anti-tearing layer and a relief embossing structure, wherein the anti-tearing layer is arranged on the upper surface of the heat-insulation layer, the upper surface of the anti-tearing layer is the relief embossing structure, the heat-insulation layer, the anti-tearing layer and the relief embossing structure are all flexible foaming materials, the heat-insulation layer and the anti-tearing layer are extruded by two extruders and vulcanized and foamed into a whole, and the heat-insulation layer, the anti-tearing layer and the relief embossing structure are of an integral structure. The utility model overcomes the defects of poor surface tearing strength, non-bright and beautiful appearance and poor attractive vision of the rubber-plastic embossed plate in the prior art, ensures that the product has higher tearing strength, compression rebound resilience and wet resistance factor, and greatly improves the comprehensive performance of the product.
Description
Technical Field
The utility model belongs to the technical field of high polymer material foaming, and particularly relates to a composite embossed flexible foaming thermal insulation material.
Background
The traditional NBR/PVC rubber-plastic foaming thermal insulation material is difficult to meet the requirements of different customers and some engineering and construction aspects, such as appearance aesthetic property, color, surface tearing strength and the like. The currently applied products comprise two types, one is a traditional foamed product formed by single color and single sizing material, such as CN103102533A, and the defects of single structure, insufficient integral aesthetic degree, poor skin tearing property and the like exist. In the other method, a composite layer with other colors is adhered on the surface layer of the traditional rubber-plastic heat-insulating material in an adhesive mode, the mode has high processing cost, complicated procedures, irregular veneering and low composite strength, and the used binder has great harm to the environment, thereby influencing the overall aesthetic property and the environmental protection property of the rubber-plastic heat-insulating material.
Patent CN203974373U and patent CN204236121U disclose respectively "a relief craft rubber and plastic insulation board" and "a relief figure flexible rubber and plastic foaming insulation board", but the general rubber and plastic relief board still has the shortcoming of poor surface tearing strength, not bright-colored beautiful appearance, pleasing to the eye visual difference in some specific application fields. CN108892825A discloses 'a multilayer composite rubber-plastic foam heat-insulation material and a preparation method', the composite rubber-plastic foam heat-insulation material prepared by the process method has the defects of no concave-convex layer on the surface, no beauty, influence on decoration and sound absorption effects and the like; and the manufacturing and forming are oven foaming, which is not continuous forming, and the production efficiency is low.
Disclosure of Invention
Aiming at the defects of the traditional rubber-plastic foaming thermal insulation material in the prior art, the utility model aims to provide the composite embossed flexible foaming thermal insulation material which has high surface tearing strength, bright and beautiful appearance and good beautiful vision, and is produced by blending and extruding through two extruders and continuous vulcanization foaming.
The composite embossed flexible foaming thermal insulation material consists of a thermal insulation layer 1, an anti-tearing layer 2 and a relief embossing structure 3, wherein the anti-tearing layer 2 is arranged on the upper surface of the thermal insulation layer 1, and the relief embossing structure 3 is arranged on the upper surface of the anti-tearing layer 2.
The heat preservation layer 1 is different from the anti-tear layer 2 and the relief embossing structure 3 in material, the anti-tear layer 2 is the same as the relief embossing structure 3 in material, and the anti-tear layer 2 and the relief embossing structure 3 are integrated.
The composite embossed flexible foam heat-insulation material heat-insulation layer 1, the anti-tearing layer 2 and the relief embossing structure 3 are all flexible foam materials, the heat-insulation layer 1 and the anti-tearing layer 2 are extruded and vulcanized and foamed into a whole through two extruders, and the heat-insulation layer 1, the anti-tearing layer 2 and the relief embossing structure 3 are of an integral structure.
The composite embossed flexible foaming heat-insulating material is a plate.
The thickness of the heat-insulating layer 1 is 5mm-50mm, preferably 10mm-30 mm.
The thickness of the tear-resistant layer 2 is 2mm to 30mm, preferably 5mm to 15 mm.
The depth of the relief printing structures 3 is 0.5mm to 5mm, preferably 1mm to 3 mm.
The anti-tearing layer embossed printing structure is any character or pattern.
The composite embossed flexible foaming thermal insulation material is prepared from a framework material, a filler, a foaming agent, a cross-linking agent, an accelerant, an active agent, a plasticizer, a lubricant, a flame retardant, a compatilizer, a reinforcing agent, a pigment and the like.
The framework material comprises nitrile rubber, polyvinyl chloride paste resin and chlorinated polyethylene.
Further, the matrix material of the tear-resistant layer 2 and the embossed relief structure 3 also comprises a tear-resistant polymer.
The tear-resistant polymer is one of epoxidized natural rubber ENR, chloroprene rubber CR and polyester type thermoplastic elastomer TPEE or polyurethane rubber PUR.
The filler is selected from talcum powder, aluminum hydroxide, calcium carbonate and the like. The foaming agent is azodicarbonamide and the like. The cross-linking agent is sulfur and the like. The accelerator is 2-3 of dimethyl dithiocarbamate (PZ), dipentamethylenethiuram tetrasulfide (DPTT), accelerator D (diphenyl guanidine) and accelerator M (2-mercaptobenzothiazole). The active agent is composed of nano zinc oxide, zinc p-toluenesulfinate and the like. The plasticizer is composed of epoxidized soybean oil and one of chlorinated paraffin oil and dioctyl sebacate (DOS). The lubricant is selected from the group consisting of fully refined paraffin, stearic acid, polyethylene glycol, and the like. The flame retardant is antimony trioxide and the like. The compatilizer is maleic anhydride grafted PE and the like, the heat insulation layer 1 is not added with the compatilizer, and the dosage of the compatilizer is adjusted according to the product requirements by the anti-tear layer 2 and the relief embossing structure 3. The reinforcing agent is carbon black or titanium dioxide and the like. The pigment is an inorganic pigment or an organic pigment, and is added only in the tear-resistant layer 2 and the embossed relief structure 3.
The composite embossed flexible foaming thermal insulation material comprises a thermal insulation layer 1, an anti-tear layer 2 and a relief embossing structure 3 according to the following mixture ratio shown in the following table 1, and comprises the following components in parts by weight:
table 1: formula table of heat preservation layer 1, anti-tear layer 2 and relief embossing structure 3
The preparation method of the composite embossed flexible foaming thermal insulation material comprises the following steps:
a) preparing a heat-insulating layer 1, an anti-tearing layer 2 and a relief embossing structure 3.
Firstly, preparing a sizing material for the heat-insulating layer 1.
The raw materials are weighed according to the proportion, the filler and the plasticizer are respectively divided into two parts, the weight ratio of the first part of filler to the second part of filler is 1-3:1, and the weight ratio of the first part of plasticizer to the second part of plasticizer is 1-3: 1.
The filler is selected from talcum powder, aluminum hydroxide and the like. The first portion of filler is preferably aluminum hydroxide.
The plasticizer is epoxidized soybean oil, chlorinated paraffin oil and the like. The first portion of plasticizer is preferably chlorinated paraffin oil.
Mixing the framework material, the first part of filler, the plasticizer, other fillers, the plasticizer, the lubricant, the flame retardant, the reinforcing agent and the like which are weighed according to the proportion, putting the mixed raw materials into an internal mixer for internal mixing for 5-10min, then adding the second part of filler and the plasticizer for continuous mixing for 3-5 min; the temperature of banburying rubber mixing is 140-170 ℃. And finally, putting the internally mixed rubber material into an open mill for open milling for 5-15min, and cooling and slicing to obtain No. 1 rubber material.
And (2) putting the foaming agent, the cross-linking agent, the accelerator, the activator and the No. 1 rubber material which are weighed according to the proportion into an open mill for open milling for 8-15min, wherein the open milling rubber mixing temperature is 35-60 ℃, and then cooling and slitting to obtain the heat-insulation layer rubber material.
② preparing the anti-tearing layer 2 and the relief embossing structure 3.
The raw materials are weighed according to the proportion, the filler and the plasticizer are respectively divided into two parts, the weight ratio of the first part of filler to the second part of filler is 1-3:1, and the weight ratio of the first part of plasticizer to the second part of plasticizer is 1-3: 1.
The filler is selected from talcum powder, aluminum hydroxide, calcium carbonate and the like. The first portion of filler is preferably aluminum hydroxide.
The plasticizer is epoxidized soybean oil, dioctyl sebacate (DOS) and the like. The first portion of plasticizer is preferably dioctyl sebacate (DOS).
Mixing the framework material, the first part of filler, the plasticizer, other fillers, the plasticizer, the lubricant, the flame retardant, the compatilizer, the reinforcing agent, the pigment and the like which are weighed according to the proportion, putting the mixed raw materials into an internal mixer for internal mixing for 5-10min, then adding the second part of filler and the plasticizer for continuous mixing for 3-5 min; the temperature of banburying rubber mixing is 150-190 ℃. And finally, putting the internally mixed rubber material into an open mill for open milling, wherein the open milling time is 5-15min, the open milling rubber temperature is 35-60 ℃, and then cooling and slicing to obtain No. 2 rubber material.
And (3) putting the foaming agent, the cross-linking agent, the accelerant, the active agent and the No. 2 sizing material which are weighed according to the proportion into an open mill for open milling for 8-15min, and then cooling and slitting to obtain the sizing material of the anti-tear layer 2 and the embossment embossing structure 3.
b) And respectively feeding the heat-insulating layer 1 and the anti-tearing layer 2 (relief embossing structure 3) into two extruder integrated composite devices for extrusion molding, and then embossing by a relief embossing roller. The extruder integrated composite device is an integral device formed by connecting two extruders with a neck ring mold.
c) And (4) the molded film subjected to embossing treatment enters an automatic production line for continuous foaming production.
d) And finally, cooling and shaping the composite embossed flexible foamed thermal insulation material by a cooling frame.
The forming die in the step b) comprises a first die and a second die, the first die extrudes the glue material of the heat-insulating layer 1, the second die extrudes the anti-tear layer 2 and the relief embossing structure 3, and a material attaching structure is formed between the first die and the second die through a die flow channel. The first die and the second die in the die are of a composite integrated structure, and a runner and a forming area are shared in the composite structure, so that the heat-insulating layer 1, the anti-tearing layer 2 and the relief embossing structure 3 form a non-separated integral structure.
The embossing roll in the step b) is of a double-roll structure subjected to the embedding and carving processing, and the embossing pattern can be specially designed according to the requirement.
Compared with the prior art, the composite embossed flexible foaming thermal insulation material has the following advantages:
1. the composite embossed flexible foaming heat-insulation material heat-insulation layer 1, the anti-tearing layer 2 and the relief embossed structure 3 are of an integrated structure, so that the product is low in heat conductivity coefficient, high in compression rebound rate and large in wet resistance factor.
2. The tear-resistant polymer is introduced into the formulas of the tear-resistant layer 2 and the embossed relief structure 3, so that the final product has high tear strength, good flexibility and good apparent quality.
Drawings
FIG. 1 is a schematic structural view of the composite embossed flexible foamed thermal insulation material of the present invention.
In the figure, 1-heat insulation layer, 2-anti-tearing layer, 3-relief printing structure, 4-heat insulation layer thickness, 5-anti-tearing layer thickness and 6-relief printing structure depth.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and examples, and the advantages and various effects of the present invention will be more clearly apparent therefrom. It will be understood by those skilled in the art that these specific embodiments and examples are for the purpose of illustrating the utility model and are not to be construed as limiting the utility model.
Examples 1 to 4
The composite embossed flexible foaming thermal insulation material consists of a thermal insulation layer 1, an anti-tearing layer 2 and a relief embossing structure 3, wherein the anti-tearing layer 2 is arranged on the upper surface of the thermal insulation layer 1, and the relief embossing structure 3 is arranged on the upper surface of the anti-tearing layer 2. The heat preservation layer 1 is different from the anti-tear layer 2 and the relief embossing structure 3 in material, the anti-tear layer 2 is the same as the relief embossing structure 3 in material, and the anti-tear layer 2 and the relief embossing structure 3 are integrated.
The thickness of the heat preservation layer 1 is 15mm, the thickness of the anti-tear layer 2 is 5mm, and the depth of the relief printing structure 3 is 1.5 mm. The relief printing structure of the anti-tearing layer is a wave pattern, and green pigment is added into the anti-tearing layer 2 and the relief embossing structure 3.
Comparative example 1 a composite embossed flexible foamed insulation was prepared using the formulation of CN108892825A example 2, using the preparation method of the present invention, but without embossing treatment by an embossing roll in step b).
The formulations of the examples are shown in table 2 below.
Table 2: examples 1-4 formulations, in parts by weight.
In Table 2, the types and the amount ratios of the tear-resistant polymers are shown in Table 3.
Table 3: examples 1-4 types and ratios of tear resistant polymers.
| Species of | Example 1 | Example 2 | Example 3 | Example 4 |
| ENR | 60％ | 60％ | 50％ | 50％ |
| TPEE | 20％ | 30％ | — | — |
| PUR | — | — | 30％ | 30％ |
| CR | 20％ | 10％ | 20％ | 20％ |
Table 4: examples 1-4 and comparative example 1 performance test results.
As can be seen from Table 4, the composite embossed flexible thermal insulation material with the three-layer structure of the thermal insulation layer 1, the anti-tear layer 2 and the embossed relief structure 3 is produced by optimizing the raw material formula, improving the production process, blending and extruding through two extruders and continuously vulcanizing and foaming, the defects of poor surface tearing strength, non-bright and beautiful appearance and poor attractive vision of the rubber-plastic embossed plate in the prior art are overcome, the product is ensured to have higher tearing strength, compression rebound and wet resistance factors, and the comprehensive performance of the product is greatly improved.
Claims (10)
1. The composite embossed flexible foaming thermal insulation material is characterized in that: the heat-insulation anti-tear fabric is composed of a heat-insulation layer (1), an anti-tear layer (2) and a relief embossing structure (3), wherein the anti-tear layer (2) is arranged on the upper surface of the heat-insulation layer (1), and the relief embossing structure (3) is arranged on the upper surface of the anti-tear layer (2).
2. The composite embossed flexible foam thermal insulation material as claimed in claim 1, wherein the thermal insulation layer (1) is made of a material different from that of the tear-resistant layer (2) and the embossed structure (3), the tear-resistant layer (2) and the embossed structure (3) are made of the same material, and the tear-resistant layer (2) and the embossed structure (3) are integrated.
3. The composite embossed flexible foamed thermal insulation material according to claim 1, wherein the thickness of the thermal insulation layer is 5mm to 50 mm.
4. The composite embossed flexible foamed thermal insulation material according to claim 2, wherein the thickness of the thermal insulation layer is 5mm to 50 mm.
5. The composite embossed flexible foamed thermal insulation material according to claim 1, wherein the tear resistant layer has a thickness of 2mm to 30 mm.
6. The composite embossed flexible foamed thermal insulation material according to claim 2, wherein the tear-resistant layer has a thickness of 2mm to 30 mm.
7. The composite embossed flexible foamed thermal insulation material according to claim 3, wherein the tear resistant layer has a thickness of 2mm to 30 mm.
8. The composite embossed flexible foamed thermal insulation material according to any one of claims 1 to 7, wherein the depth of the embossed structure of the relief is 0.5mm to 5 mm.
9. The composite embossed flexible foamed thermal insulation material according to any one of claims 1 to 7, wherein the embossed structure (3) is any character or pattern.
10. The composite embossed flexible foamed thermal insulation material according to claim 8, wherein the embossed structure (3) is any character or pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121583003.4U CN215435421U (en) | 2021-07-13 | 2021-07-13 | Composite embossed flexible foaming thermal insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121583003.4U CN215435421U (en) | 2021-07-13 | 2021-07-13 | Composite embossed flexible foaming thermal insulation material |
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| CN215435421U true CN215435421U (en) | 2022-01-07 |
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| CN202121583003.4U Active CN215435421U (en) | 2021-07-13 | 2021-07-13 | Composite embossed flexible foaming thermal insulation material |
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