Anti-deformation EPE pearl wool

Abstract

The invention discloses anti-deformation EPE pearl wool, and relates to the field of pearl wool, and the anti-deformation EPE pearl wool is prepared from the following raw materials in parts by weight: 100-200 parts of low density polyethylene; 30 to 50 parts of an EVA material; 2-10 parts of an energy absorption reinforcing filler; 20 to 40 parts of an auxiliary agent; 30 to 40 parts of a coating agent; the proportion of the foaming agent is 50-70%, the proportion of the nucleating agent is 5-10%, the proportion of the anti-shrinking agent is 5-10%, the proportion of the modifier is 1-5%, the proportion of the solubilizer is 1-5%, the proportion of the hydrophobic flame-retardant additive is 1-10%, and the proportion of the nucleating agent is 10-20% of talcum powder, 25-35% of silicon dioxide, 15-25% of carbon nanotubes and 20-30% of calcium carbonate. According to the anti-deformation EPE pearl wool, the composition formula of the anti-deformation EPE pearl wool comprises the low-density polyethylene, the EVA material, the energy absorption reinforcing filler, the auxiliary, the coating agent and the hard elastic piece, the hard elastic piece is added to improve the overall strength of the EPE pearl wool, and therefore the anti-deformation capacity of the EPE pearl wool is guaranteed; and different annular EPE pearl wool can be produced.

Description

Technical Field

[0001] The invention relates to the field of pearl cotton, in particular to deformation-resistant EPE pearl cotton. Background Art

[0002] EPE pearl cotton is called Expandable Polyethylene, which is a new type of environmentally friendly packaging material. It is composed of countless independent bubbles formed by physical foaming of low-density polyethylene (LDPE) resin.

[0003] When EPE pearl cotton is produced, it is mainly made of low-density polyethylene and other materials as auxiliary materials. It is formed after physical foaming. However, since the low-density polyethylene resin is physically foamed, it will cause multiple bubble chambers to form inside the EPE pearl cotton, which will make the EPE pearl cotton material soft. When the EPE pearl cotton is subjected to force, it will bend and deform, or even break, so there are certain defects. Summary of the invention

[0004] The object of the present invention is to provide an EPE pearl cotton that is resistant to deformation, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a deformation-resistant EPE pearl cotton, wherein the raw materials for preparing the deformation-resistant EPE pearl cotton are composed of the following components in parts by weight: Low density polyethylene, 100-200 parts; EVA material, 30-50 parts; Energy absorbing and reinforcing filler, 2-10 parts; Additives, 20-40 parts; Coating agent, 30-40 parts; Hard shrapnel, 1-5 pieces.

[0006] Preferably, the additives include a foaming agent, a nucleating agent, an anti-shrinkage agent, a modifier, a solubilizer and a hydrophobic flame retardant additive, and the proportions of the additives are: 50-70% foaming agent, 5-10% nucleating agent, 5-10% anti-shrinkage agent, 1-5% modifier, 1-5% solubilizer, and 1-10% hydrophobic flame retardant additive.

[0007] Preferably, the nucleating agent comprises talc, silicon dioxide, carbon nanotubes and calcium carbonate, and the ratio of the nucleating agent is: talc 10-20%, silicon dioxide 25-35%, carbon nanotubes 15-25%, calcium carbonate 20-30%.

[0008] Preferably, the preparation process of the deformation-resistant EPE pearl cotton further comprises the following steps: Step 1: Mix the raw materials for preparing EPE pearl cotton, mix low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 60-70% low-density polyethylene, 20-30% EVA material, 5-10% energy-absorbing and reinforcing filler and 5-10% additives to generate a premix; Step 2: Place the hard spring into the foaming mold; Step 3: feeding the premix into a foaming machine and injecting it into a foaming mold, and foaming the premix in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank 1; Step 4: Cooling, shaping and cutting the EPE pearl cotton blank 1 to generate EPE pearl cotton blank 2; Step 5: Use a coating agent to coat the outside of the EPE pearl cotton blank 2 to form a coating film to form an EPE pearl cotton product.

[0009] Preferably, in the step 1, the order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, anti-shrinkage agent, modifier, solubilizer and hydrophobic flame retardant additive.

[0010] Preferably, in the step 1, the mixing temperature of the raw materials for preparing EPE pearl cotton is 150-180° C., and the mixing time is 30-50.

[0011] Preferably, the high temperature and high pressure in step 1 are: temperature 90-140° C., and pressure 2-5 atmospheres.

[0012] Preferably, the temperature at which the EPE pearl cotton blank is cooled in step 4 is room temperature.

[0013] Preferably, the coating film in step five includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth.

[0014] Technical effects and advantages of the present invention: The present invention utilizes the composition formula of anti-deformation EPE pearl cotton, which includes low-density polyethylene, EVA material, energy-absorbing and reinforcing filler, additives, coating agents and hard spring pieces. Hard spring pieces are added therein to improve the overall strength of the EPE pearl cotton, thereby ensuring its anti-deformation ability. The composition of the controller can be controlled to produce EPE pearl cotton suitable for different ring shapes. DETAILED DESCRIPTION

[0015] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0016] The present invention provides an anti-deformation EPE pearl cotton. The raw materials for preparing the anti-deformation EPE pearl cotton are composed of the following components in parts by weight: Low density polyethylene, 100-200 parts; EVA material, 30-50 parts; Energy absorbing and reinforcing filler, 2-10 parts; Additives, 20-40 parts; Coating agent, 30-40 parts; Hard shrapnel, 1-5 pieces.

[0017] Furthermore, the additives include foaming agents, nucleating agents, shrinkage inhibitors, modifiers, solubilizers and hydrophobic flame retardant additives. The proportions of the additives are: 50-70% foaming agent, 5-10% nucleating agent, 5-10% shrinkage inhibitor, 1-5% modifier, 1-5% solubilizer, 1-10% hydrophobic flame retardant additive. The foaming agent is a substance that makes the object substance pore-forming. It is mainly divided into three categories: chemical foaming agent, physical foaming agent and surfactant. Chemical foaming agent can release gases such as carbon dioxide and nitrogen after heating and decomposition, and form pores in the polymer composition. Physical foaming agent is through the change of the physical form of a certain substance, that is, through the compressed gas. The foaming agent is a new functional additive that can shorten the molding cycle, improve the product transparency, surface gloss, tensile strength, rigidity, heat deformation temperature, impact resistance, creep resistance and other physical and mechanical properties by changing the crystallization behavior of the resin, accelerating the crystallization rate, increasing the crystal density and promoting the refinement of the grain size. It is mainly divided into inorganic nucleating agents, organic nucleating agents, polymer nucleating agents and β-crystal nucleating agents, etc. Anti-shrinkage agent is an additive used to reduce the shrinkage of plastics during cooling. It is mainly used in injection molding or extrusion molding. By adding anti-shrinkage agent, the shrinkage rate of the material can be significantly reduced, thereby ensuring the dimensional accuracy and consistency of the final EPE pearl cotton product. The use of anti-shrinkage agent can effectively resist collapse, optimize the molding process, and improve production efficiency. Modifier is a substance used to change the surface properties or internal structure of the material, including coupling agent, surfactant, organic polymer treatment agent, inorganic treatment agent, etc. Solubilizer refers to a substance with solubilizing The surfactant with high solubility can increase the solubility of poorly soluble drugs and form a clear solution in the presence of surfactant colloid particles. The properties of the solubilizer, the properties of the solubilizer, the HLB value of the solubilizer, the temperature, the dosage of the solubilizer, etc. are all factors affecting the solubilization effect. The hydrophobic flame retardant additive can improve the comprehensive properties of the pearl cotton such as hydrophobicity, flame retardancy, and toughness. The stable and uniform size can be guaranteed during the preparation process. The nucleating agents include talc, silicon dioxide, carbon nanotubes and calcium carbonate. The proportion of the nucleating agent is: talc 10-20%, silicon dioxide 25-35%, carbon nanotubes 15-25%, calcium carbonate 20-30%.

[0018] Example 1 The preparation process of the deformation-resistant EPE pearl cotton also includes the following steps: The raw materials for preparing EPE pearl cotton are mixed, and low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives are mixed. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 70% low-density polyethylene, 20% EVA material, 5% energy-absorbing and reinforcing filler and 5% additives are mixed to generate a premix. The order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing and reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, shrinkage-resistant agent, modifier, solubilizer and hydrophobic flame retardant additive. The mixing temperature of the raw materials for preparing EPE pearl cotton is 150-180° C., the mixing time is 30-50, and the high temperature and high pressure are: temperature 90-140° C., and pressure is 2-5 atmospheres; Put the hard spring sheet into the foaming mold; The premix is ​​fed into a foaming machine and injected into a foaming mold. The premix is ​​foamed in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank. The EPE pearl cotton blank 1 is cooled, shaped and cut to generate the EPE pearl cotton blank 2, and the cooling temperature of the EPE pearl cotton blank 1 is room temperature; A coating agent is used to coat the outside of the EPE pearl cotton blank 2 to form a coating film, wherein the coating film includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth to form an EPE pearl cotton product.

[0019] Example 2 The preparation process of the deformation-resistant EPE pearl cotton also includes the following steps: The raw materials for preparing EPE pearl cotton are mixed, and low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives are mixed. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 600% low-density polyethylene, 30% EVA material, 5% energy-absorbing and reinforcing filler and 50% additives are mixed to generate a premix. The order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing and reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, shrinkage-resistant agent, modifier, solubilizer and hydrophobic flame retardant additive. The mixing temperature of the raw materials for preparing EPE pearl cotton is 150-180° C., the mixing time is 30-50, and the high temperature and high pressure are: temperature 90-140° C., and pressure is 2-5 atmospheres; Put the hard spring sheet into the foaming mold; The premix is ​​fed into a foaming machine and injected into a foaming mold. The premix is ​​foamed in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank. The EPE pearl cotton blank 1 is cooled, shaped and cut to generate the EPE pearl cotton blank 2, and the cooling temperature of the EPE pearl cotton blank 1 is room temperature; A coating agent is used to coat the outside of the EPE pearl cotton blank 2 to form a coating film, wherein the coating film includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth to form an EPE pearl cotton product.

[0020] Example 3 The preparation process of the deformation-resistant EPE pearl cotton also includes the following steps: The raw materials for preparing EPE pearl cotton are mixed, and low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives are mixed. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 60% low-density polyethylene, 20% EVA material, 10% energy-absorbing and reinforcing filler and 10% additives are mixed to generate a premix. The order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing and reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, shrinkage-resistant agent, modifier, solubilizer and hydrophobic flame retardant additive. The mixing temperature of the raw materials for preparing EPE pearl cotton is 150-180° C., the mixing time is 30-50, and the high temperature and high pressure are: temperature 90-140° C., and pressure is 2-5 atmospheres; Put the hard spring sheet into the foaming mold; The premix is ​​fed into a foaming machine and injected into a foaming mold. The premix is ​​foamed in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank. The EPE pearl cotton blank 1 is cooled, shaped and cut to generate the EPE pearl cotton blank 2, and the cooling temperature of the EPE pearl cotton blank 1 is room temperature; A coating agent is used to coat the outside of the EPE pearl cotton blank 2 to form a coating film, wherein the coating film includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth to form an EPE pearl cotton product.

[0021] Example 4 The preparation process of the deformation-resistant EPE pearl cotton also includes the following steps: The raw materials for preparing EPE pearl cotton are mixed, and low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives are mixed. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 65% low-density polyethylene, 25% EVA material, 50% energy-absorbing and reinforcing filler and 50% additives are mixed to generate a premix. The order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing and reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, shrinkage-resistant agent, modifier, solubilizer and hydrophobic flame retardant additive. The mixing temperature of the raw materials for preparing EPE pearl cotton is 150-180° C., the mixing time is 30-50, and the high temperature and high pressure are: temperature 90-140° C., and pressure is 2-5 atmospheres; Put the hard spring sheet into the foaming mold; The premix is ​​fed into a foaming machine and injected into a foaming mold. The premix is ​​foamed in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank. The EPE pearl cotton blank 1 is cooled, shaped and cut to generate the EPE pearl cotton blank 2, and the cooling temperature of the EPE pearl cotton blank 1 is room temperature; A coating agent is used to coat the outside of the EPE pearl cotton blank 2 to form a coating film, wherein the coating film includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth to form an EPE pearl cotton product.

[0022] Example 5 The preparation process of the deformation-resistant EPE pearl cotton also includes the following steps: The raw materials for preparing EPE pearl cotton are mixed, and low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives are mixed. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 70% low-density polyethylene, 20% EVA material, 5% energy-absorbing and reinforcing filler and 5% additives are mixed to generate a premix. The order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing and reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, shrinkage-resistant agent, modifier, solubilizer and hydrophobic flame retardant additive. The mixing temperature of the raw materials for preparing EPE pearl cotton is 150°C, the mixing time is 40, and the high temperature and high pressure are: temperature 120°C, pressure is 3 atmospheres; Put the hard spring sheet into the foaming mold; The premix is ​​fed into a foaming machine and injected into a foaming mold. The premix is ​​foamed in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank. The EPE pearl cotton blank 1 is cooled, shaped and cut to generate the EPE pearl cotton blank 2, and the cooling temperature of the EPE pearl cotton blank 1 is room temperature; A coating agent is used to coat the outside of the EPE pearl cotton blank 2 to form a coating film, wherein the coating film includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth to form an EPE pearl cotton product.

[0023] Example 6 The preparation process of the deformation-resistant EPE pearl cotton also includes the following steps: The raw materials for preparing EPE pearl cotton are mixed, and low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives are mixed. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 600% low-density polyethylene, 30% EVA material, 5% energy-absorbing and reinforcing filler and 5% additives are mixed to generate a premix. The order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing and reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, shrinkage-resistant agent, modifier, solubilizer and hydrophobic flame retardant additive. The mixing temperature of the raw materials for preparing EPE pearl cotton is 170°C, the mixing time is 50, and the high temperature and high pressure are: temperature 130°C, pressure is 5 atmospheres; Put the hard spring sheet into the foaming mold; The premix is ​​fed into a foaming machine and injected into a foaming mold. The premix is ​​foamed in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank. The EPE pearl cotton blank 1 is cooled, shaped and cut to generate the EPE pearl cotton blank 2, and the cooling temperature of the EPE pearl cotton blank 1 is room temperature; A coating agent is used to coat the outside of the EPE pearl cotton blank 2 to form a coating film, wherein the coating film includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth to form an EPE pearl cotton product.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deformation-resistant EPE pearl cotton, characterized in that: The raw materials for preparing the deformation-resistant EPE pearl cotton are composed of the following components in parts by weight: Low density polyethylene, 100-200 parts; EVA material, 30-50 parts; Energy absorbing and reinforcing filler, 2-10 parts; Additives, 20-40 parts; Coating agent, 30-40 parts; Hard shrapnel, 1-5 pieces.

2. The deformation-resistant EPE pearl cotton according to claim 1, characterized in that: The additives include foaming agent, nucleating agent, shrinkage inhibitor, modifier, solubilizer and hydrophobic flame retardant additive, and the proportion of the additives is: foaming agent 50-70%, nucleating agent 5-10%, shrinkage inhibitor 5-10%, modifier 1-5%, solubilizer 1-5%, hydrophobic flame retardant additive 1-10%.

3. The deformation-resistant EPE pearl cotton according to claim 2, characterized in that: The nucleating agent comprises talcum powder, silicon dioxide, carbon nanotubes and calcium carbonate, and the ratio of the nucleating agent is: talcum powder 10-20%, silicon dioxide 25-35%, carbon nanotubes 15-25%, and calcium carbonate 20-30%.

4. The deformation-resistant EPE pearl cotton according to claim 1, characterized in that: The preparation process of the anti-deformation EPE pearl cotton also includes the following steps: Step 1: Mix the raw materials for preparing EPE pearl cotton, mix low-density polyethylene, EVA material, energy-absorbing and reinforcing filler and additives. The mixing ratio of the raw materials for preparing EPE pearl cotton is: 60-70% low-density polyethylene, 20-30% EVA material, 5-10% energy-absorbing and reinforcing filler and 5-10% additives to generate a premix; Step 2: Place the hard spring into the foaming mold; Step 3: feeding the premix into a foaming machine and injecting it into a foaming mold, and foaming the premix in the foaming mold under high temperature and high pressure to generate an EPE pearl cotton blank 1; Step 4: Cooling, shaping and cutting the EPE pearl cotton blank 1 to generate EPE pearl cotton blank 2; Step 5: Use a coating agent to coat the outside of the EPE pearl cotton blank 2 to form a coating film to form an EPE pearl cotton product.

5. The deformation-resistant EPE pearl cotton according to claim 4, characterized in that: In the step 1, the order of adding the raw materials for preparing EPE pearl cotton is low-density polyethylene, EVA material, additives and energy-absorbing reinforcing filler, and the order of adding the additives is foaming agent, nucleating agent, anti-shrinkage agent, modifier, solubilizer and hydrophobic flame retardant additive.

6. The deformation-resistant EPE pearl cotton according to claim 4, characterized in that: In the step 1, the mixing temperature of the raw materials for preparing EPE pearl cotton is 150-180° C., and the mixing time is 30-50.

7. The deformation-resistant EPE pearl cotton according to claim 4, characterized in that: The high temperature and high pressure in step 1 are: temperature 90-140° C., and pressure 2-5 atmospheres.

8. The deformation-resistant EPE pearl cotton according to claim 4, characterized in that: The temperature of cooling the EPE pearl cotton blank in the step 4 is room temperature.

9. The deformation-resistant EPE pearl cotton according to claim 4, characterized in that: The coating film in step five includes but is not limited to one or more of HDPE film, aluminized film, plastic-coated paper and plastic-coated cloth.