CN111205544A - High-density pearl cotton and production process thereof - Google Patents
High-density pearl cotton and production process thereof Download PDFInfo
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- CN111205544A CN111205544A CN202010136383.0A CN202010136383A CN111205544A CN 111205544 A CN111205544 A CN 111205544A CN 202010136383 A CN202010136383 A CN 202010136383A CN 111205544 A CN111205544 A CN 111205544A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
Abstract
The invention relates to high-density pearl cotton and a production process thereof, wherein the high-density pearl cotton comprises the following raw materials in parts by weight: 50-60 parts of matrix material, 2-8 parts of nucleating agent, 1-5 parts of foaming agent and 20-30 parts of anti-shrinking agent, and also comprises 2-4 parts of hardening master batch and 2-4 parts of encryption master batch. The hardening master batch and the encryption master batch are added into the raw materials, so that the hardness and density of the manufactured pearl cotton are improved, and the overall compression resistance and deformation resistance of the pearl cotton are improved.
Description
Technical Field
The invention relates to the technical field of packaging material production, in particular to high-density pearl cotton and a production process thereof.
Background
The pearl cotton has better performance, lower cost and better effect than the traditional materials in the aspects of packaging and other industrial materials.
Publication No. CN107629283A discloses a production process of EPE pearl wool, which comprises the following raw materials, by weight, 60-70 parts of a base material, 5-10 parts of a nucleating agent, 5-10 parts of an antistatic agent, 10-20 parts of a foaming agent and 10-20 parts of an anti-shrinkage agent.
The antistatic agent is added in the production process to improve the antistatic capacity of the pearl cotton product, but the pressure resistance of the pearl cotton product is poor, and the pearl cotton is easy to deform.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides high-density pearl cotton and a production process thereof, which can improve the pressure resistance of pearl cotton products.
In order to achieve the purpose, the high-density pearl cotton and the production process thereof comprise the following raw materials in parts by weight: 50-60 parts of matrix material, 2-8 parts of nucleating agent, 1-5 parts of foaming agent and 20-30 parts of anti-shrinking agent, and also comprises 2-4 parts of hardening master batch and 2-4 parts of encryption master batch.
Furthermore, the matrix material is LDPE colloidal particles, the nucleating agent is gold foam mother, the foaming agent is butane agent, and the anti-shrinkage agent is monoglyceride.
Furthermore, the hardening master batch is calcium carbonate filling master batch, and the encryption master batch is talcum powder filling master batch.
Further, the method comprises the following steps: s1: mixing and stirring, namely uniformly mixing the LDPE colloidal particles, the nucleating agent, the hardening master batch and the encryption master batch in proportion; s2: heating and melting, namely feeding the uniformly mixed raw materials into a foaming machine at the pressure of 10-15MPa, feeding the raw materials into the foaming machine, and firstly performing heating treatment at the heating temperature of 180-190 ℃ so that the raw material mixture is melted to a transparent adhesive state and kept at a constant temperature of 150-160 ℃; s3: foaming, namely foaming the raw material in S2 into a porous structure under the catalytic action of monoglyceride and a butane agent, reducing the temperature of the raw material to 80-90 ℃ in a molding heating section, and extruding the raw material from a die orifice at the temperature of 100-110 ℃; s4: drawing and shaping, wherein the sheet is drawn out by a drawing machine, the drawing speed is 2-5m/min, and the sheet passes through a shaping strand for shaping; s5: cooling, namely cooling and shaping the sheet by a shaping strand, wherein the cooling temperature is 8-15 ℃; s6: and (4) rolling, namely rolling the formed sheet by a rolling machine after flattening, and obtaining a finished product.
The material includes 55 weight portions of base material, 5 weight portions of nucleating agent, 3 weight portions of foaming agent, 25 weight portions of anti-shrinking agent, 3 weight portions of hardening mother particle and 3 weight portions of enciphered mother particle.
The material includes base material 60 weight portions, nucleating agent 8 weight portions, foaming agent 5 weight portions, antishrinking agent 30 weight portions, hardening agglomerate 4 weight portions and enciphered agglomerate 4 weight portions.
Has the advantages that: the hardening master batch and the encryption master batch are added into the raw materials, so that the hardness and density of the manufactured pearl cotton are improved, and the overall compression resistance and deformation resistance of the pearl cotton are improved.
Drawings
The present invention will be further described and illustrated with reference to the following drawings.
Fig. 1 is a process flow chart of a production process of high-density pearl wool.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Example 1: a high-density pearl wool and a production process thereof comprise the following steps:
s1: mixing and stirring, namely uniformly mixing the LDPE colloidal particles, the nucleating agent, the hardening master batch and the encryption master batch in proportion; in S1, the mixed raw materials comprise, by weight, 50-60 parts of a base material, 2-8 parts of a nucleating agent, 1-5 parts of a foaming agent, 20-30 parts of an anti-shrinking agent, 2-4 parts of a hardening master batch and 2-4 parts of an encryption master batch.
Specifically, 55 parts of matrix material, 5 parts of nucleating agent, 3 parts of foaming agent, 25 parts of anti-shrinkage agent, 3 parts of hardening master batch and 3 parts of encryption master batch. The matrix material is LDPE colloidal particles, the nucleating agent is gold foam mother, the foaming agent is butane, and the anti-shrinkage agent is monoglyceride. The hardening master batch is one or more of calcium carbonate filling master batch, barium sulfate filling master batch and sodium sulfate filling master batch, and the encryption master batch is one or more of talcum powder filling master batch, ceramic powder and the like.
S2: heating and melting, namely feeding the uniformly mixed raw materials into a foaming machine at the pressure of 10-15MPa, feeding the raw materials into the foaming machine, and firstly performing heating treatment at the heating temperature of 180-190 ℃ so that the raw material mixture is melted to a transparent adhesive state and kept at a constant temperature of 150-160 ℃.
S3: foaming, namely foaming the raw material in S2 into a porous structure under the catalytic action of monoglyceride and a butane agent, reducing the temperature of the raw material to 80-90 ℃ in a molding heating section, and extruding the raw material from a die orifice at the temperature of 100-110 ℃.
S4: and (4) drawing and shaping, wherein the sheet is drawn out by a drawing machine, the drawing speed is 2-5m/min, and the sheet passes through a shaping strand for shaping.
S5: and (3) cooling, namely cooling and shaping the sheet by a shaping strand, wherein the cooling temperature is 8-15 ℃. And (3) cooling the shaping strand at normal temperature by introducing cold water into the shaping strand, and keeping the temperature at 8-15 ℃.
S6: and (4) rolling, namely rolling the formed sheet by a rolling machine after flattening, and obtaining a finished product.
After the product is formed, the density of the manufactured product is 100 kg/cubic meter of pearl cotton, after the hardness of the pearl cotton is tested by an LX-C type Shore micropore material hardness tester, the hardness is compared with the hardness of the existing pearl cotton material, and the comparison result is shown in Table 1:
TABLE 1
As can be seen from the table, for the comparison of the pearl cotton with the density of 100 kg/cubic meter, the hardness of the high-density pearl cotton improved by the embodiment is 3-4 times of that of the common pearl cotton. The improved high-density pearl wool has better pressure resistance and greatly improved integral deformation resistance.
Example 2: a high-density pearl wool and a production process thereof comprise the following steps:
s1: mixing and stirring, namely uniformly mixing the LDPE colloidal particles, the nucleating agent, the hardening master batch and the encryption master batch in proportion; in S1, the mixed raw materials comprise, by weight, 50-60 parts of a base material, 2-8 parts of a nucleating agent, 1-5 parts of a foaming agent, 20-30 parts of an anti-shrinking agent, 2-4 parts of a hardening master batch and 2-4 parts of an encryption master batch.
Specifically, 60 parts of matrix material, 8 parts of nucleating agent, 5 parts of foaming agent, 30 parts of anti-shrinkage agent, 4 parts of hardening master batch and 4 parts of encryption master batch. The matrix material is LDPE colloidal particles, the nucleating agent is gold foam mother, the foaming agent is butane, and the anti-shrinkage agent is monoglyceride. The hardening master batch is calcium carbonate filling master batch, and the encryption master batch is talcum powder filling master batch.
S2: heating and melting, namely feeding the uniformly mixed raw materials into a foaming machine at the pressure of 10-15MPa, feeding the raw materials into the foaming machine, and firstly performing heating treatment at the heating temperature of 180-190 ℃ so that the raw material mixture is melted to a transparent adhesive state and kept at a constant temperature of 150-160 ℃.
S3: foaming, namely foaming the raw material in S2 into a porous structure under the catalytic action of monoglyceride and a butane agent, reducing the temperature of the raw material to 80-90 ℃ in a molding heating section, and extruding the raw material from a die orifice at the temperature of 100-110 ℃.
S4: and (4) drawing and shaping, wherein the sheet is drawn out by a drawing machine, the drawing speed is 2-5m/min, and the sheet passes through a shaping strand for shaping.
S5: and (3) cooling, namely cooling and shaping the sheet by a shaping strand, wherein the cooling temperature is 8-15 ℃. And (3) cooling the shaping strand at normal temperature by introducing cold water into the shaping strand, and keeping the temperature at 8-15 ℃.
S6: and (4) rolling, namely rolling the formed sheet by a rolling machine after flattening, and obtaining a finished product.
After the product is formed, the hardness of the manufactured product is measured by using an LX-C type Shore micropore material hardness tester, and is compared with the hardness of the existing pearl cotton material, and the comparison result is shown in Table 2:
TABLE 2
As can be seen from the table, for the comparison of the pearl cotton with the density of 120 kg/cubic meter, the hardness of the high-density pearl cotton improved by the embodiment is more than 4 times of that of the common pearl cotton. The improved high-density pearl wool has better pressure resistance and greatly improved integral deformation resistance.
In conclusion, compared with the existing pearl cotton, the hardness of the whole pearl cotton is improved by 3-4 times under the condition of the same density by adding the hardening master batch and the encryption master batch into the process raw materials, the protection of products wrapped by the pearl cotton is supported, and the whole pressure resistance and the deformation resistance of the improved pearl cotton are obviously improved.
The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the invention. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. The scope of the invention is defined by the claims.
Claims (6)
1. The high-density pearl wool comprises the following raw materials in parts by weight: 50-60 parts of matrix material, 2-8 parts of nucleating agent, 1-5 parts of foaming agent and 20-30 parts of anti-shrinking agent, and is characterized by further comprising 2-4 parts of hardening master batch and 2-4 parts of encryption master batch.
2. The high-density pearl wool according to claim 1, wherein the matrix material is LDPE colloidal particles, the nucleating agent is gold foam, the foaming agent is butane, and the antishrinking agent is monoglyceride.
3. The high-density pearl wool according to claim 2, wherein the hardening master batch is calcium carbonate filling master batch, and the encryption master batch is talcum powder filling master batch.
4. The production process of high-density pearl wool according to claim 3, which comprises the following steps:
s1: mixing and stirring, namely uniformly mixing the LDPE colloidal particles, the nucleating agent, the hardening master batch and the encryption master batch in proportion;
s2: heating and melting, namely feeding the uniformly mixed raw materials into a foaming machine at the pressure of 10-15MPa, feeding the raw materials into the foaming machine, and firstly performing heating treatment at the heating temperature of 180-190 ℃ so that the raw material mixture is melted to a transparent adhesive state and kept at a constant temperature of 150-160 ℃;
s3: foaming, namely foaming the raw material in S2 into a porous structure under the catalytic action of monoglyceride and a butane agent, reducing the temperature of the raw material to 80-90 ℃ in a molding heating section, and extruding the raw material from a die orifice at the temperature of 100-110 ℃;
s4: drawing and shaping, wherein the sheet is drawn out by a drawing machine, the drawing speed is 2-5m/min, and the sheet passes through a shaping strand for shaping;
s5: cooling, namely cooling and shaping the sheet by a shaping strand, wherein the cooling temperature is 8-15 ℃;
s6: and (4) rolling, namely rolling the formed sheet by a rolling machine after flattening, and obtaining a finished product.
5. The production process of the high-density pearl wool according to claim 1, wherein the production process comprises the following raw materials, by weight, 55 parts of a base material, 5 parts of a nucleating agent, 3 parts of a foaming agent, 25 parts of an anti-shrinking agent, 3 parts of a hardening master batch and 3 parts of an encryption master batch.
6. The production process of the high-density pearl wool according to claim 1, wherein the production process comprises the following raw materials, by weight, 60 parts of a base material, 8 parts of a nucleating agent, 5 parts of a foaming agent, 30 parts of an anti-shrinking agent, 4 parts of a hardening master batch and 4 parts of an encryption master batch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010136383.0A CN111205544A (en) | 2020-03-02 | 2020-03-02 | High-density pearl cotton and production process thereof |
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| CN202010136383.0A CN111205544A (en) | 2020-03-02 | 2020-03-02 | High-density pearl cotton and production process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292459A (en) * | 2022-01-17 | 2022-04-08 | 广东泓硕新材料科技有限公司 | High-density degradable pearl cotton and production process thereof |
Citations (5)
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|---|---|---|---|---|
| CN102286165A (en) * | 2011-06-22 | 2011-12-21 | 郎溪县天成包装材料有限公司 | Expandable polyethylene (EPE) pearl wool |
| CN105219114A (en) * | 2015-10-28 | 2016-01-06 | 阮煜程 | The preparation method of the plastics of good mechanical performance |
| CN105219113A (en) * | 2015-10-28 | 2016-01-06 | 阮煜程 | A kind of preparation method of calcium carbonate-filled master batch |
| CN106738987A (en) * | 2015-11-24 | 2017-05-31 | 安庆盛华纸质包装有限公司 | A kind of production technology of EPE pearl wool |
| CN107629283A (en) * | 2017-08-24 | 2018-01-26 | 南通通联海绵塑料有限公司 | A kind of production technology of EPE pearl wool |
-
2020
- 2020-03-02 CN CN202010136383.0A patent/CN111205544A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286165A (en) * | 2011-06-22 | 2011-12-21 | 郎溪县天成包装材料有限公司 | Expandable polyethylene (EPE) pearl wool |
| CN105219114A (en) * | 2015-10-28 | 2016-01-06 | 阮煜程 | The preparation method of the plastics of good mechanical performance |
| CN105219113A (en) * | 2015-10-28 | 2016-01-06 | 阮煜程 | A kind of preparation method of calcium carbonate-filled master batch |
| CN106738987A (en) * | 2015-11-24 | 2017-05-31 | 安庆盛华纸质包装有限公司 | A kind of production technology of EPE pearl wool |
| CN107629283A (en) * | 2017-08-24 | 2018-01-26 | 南通通联海绵塑料有限公司 | A kind of production technology of EPE pearl wool |
Non-Patent Citations (1)
| Title |
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| 王伟等: "发泡助剂和成核剂对聚乙烯发泡材料的影响", 《现代塑料加工应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292459A (en) * | 2022-01-17 | 2022-04-08 | 广东泓硕新材料科技有限公司 | High-density degradable pearl cotton and production process thereof |
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