CN105504527A - High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof - Google Patents

High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof Download PDF

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CN105504527A
CN105504527A CN201510894919.4A CN201510894919A CN105504527A CN 105504527 A CN105504527 A CN 105504527A CN 201510894919 A CN201510894919 A CN 201510894919A CN 105504527 A CN105504527 A CN 105504527A
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resistant
polypropylene
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CN201510894919.4A
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高猛
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安陆市鑫鑫机械设备有限公司
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/14Copolymers of propene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/14Gas barrier composition
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE

Abstract

The invention belongs to the field of material science, and in particular relates to a high-temperature steaming resistant and quick freezing resistant food packaging material and a preparation method thereof. The packaging material is prepared from the following substances in parts by weight: 10 to 20 parts of homo-polypropylene, 60 to 70 parts of polypropylene randon copolymer, and 10 to 20 parts of high-density polyethylene. The preparation method comprises two steps of stirring for uniform mixing and mixing extrusion. According to the method disclosed by the method, the three materials such as homo-polypropylene, polypropylene randon copolymer and high-density polyethylene are mixed according to a specific ratio, thus obtaining the high-temperature steaming resistant and quick freezing resistant food packaging material which has the characteristics of high-temperature resistance, quick freezing resistance, high oxygen insulation property, high toughness and the like.

Description

一种耐高温蒸煮且耐急冻的食品封装材料及其制备方法 Food packaging material and its preparation method and resistant to high temperature cooking of frozen

技术领域 FIELD

[0001] 本发明属于材料科学领域,具体涉及一种耐高温蒸煮且耐急冻的食品封装材料及其制备方法。 [0001] The present invention belongs to the field of materials science, and particularly relates to a food packaging material and a method for preparing high-temperature cooking of frozen resistance.

背景技术 Background technique

[0002] PE和PP塑料制品被广泛的用于食品的封装,尤其是随着人们生活节奏的不断变快,快餐行业每年均为使用大量的PE和PP塑料盒或袋子用来盛放食物。 [0002] PE and PP plastic products are widely used in food packaging, especially as people pace of life becomes faster, the fast food industry each year are a large number of PE and PP plastic boxes or bags used to serve food. 目前盛放食物时使用的PE和PP塑料制品存在的不足主要有以下几点:1)不耐高温,无法在高温下对塑料制品内的的食物进行加热消毒,如常规使用的PP塑料饭盒就不宜在120°C以上的温度下对食物加热;2)不耐低温和急冻,PP塑料在5°C以下时变硬变脆、容易损坏,比如装海鲜类的盒子, 为了保鲜常需急冻,普通塑料盒易变硬冻裂;3)抗氧化性差,常规PP或PE塑料盒子因其密度相对较小,隔氧能力差,空气中的氧气易进入造成盒内食物氧化变质;4)韧性差,常规PP塑料盒韧性较差,碰撞或挤压时可能破裂。 Use of existing PE and PP plastic when in full bloom food products is less than the following main points: 1) no heat, unable to heat sterilization of food products in plastic at high temperatures, such as conventional PP plastic boxes used to food should not be heated at a temperature above 120 ° C; 2) resistant to low temperatures and frozen, PP plastic hard and brittle at below 5 ° C, easily damaged, such as hoppers of fishery products, which require urgency in order to preserve frozen, ordinary plastic box is easy to harden the cracking; 3) oxidation resistance difference, a conventional PP or PE plastic case is relatively small because of its density, poor oxygen barrier, oxygen in the air easily enters the oxidative deterioration caused by food box; 4) poor toughness, the toughness is poor conventional PP plastic box, or may be broken when impact extrusion.

发明内容 SUMMARY

[0003] 本发明所要解决的技术问题是提供一种耐高温蒸煮且耐急冻的食品封装材料及其制备方法,该食品封装材料能够一定程度上解决现有技术中存在的不足。 [0003] The present invention solves the technical problem is to provide a high-temperature cooking and food packaging material and preparation of frozen resistance, food packaging material capable of solving the deficiencies of the prior art is present to some extent.

[0004] 本发明解决上述技术问题的技术方案如下:一种耐高温蒸煮且耐急冻的食品封装材料,由以下重量份的物质组成: [0004] The present invention solves the above problems of the technical solution as follows: A cooking and frozen food packaging materials resistant to high temperature, consists of the following parts by weight of the composition of matter:

[0005] 均聚聚丙烯10-20份 [0005] 10-20 parts of homopolypropylene

[0006] 无规共聚聚丙烯60-70份 [0006] 60-70 parts polypropylene random copolymer

[0007] 高密度聚乙烯10-20份。 [0007] 10 to 20 parts of high density polyethylene.

[0008] 在上述技术方案的基础上,本发明还可以做如下进一步改进。 [0008] Based on the foregoing technical solution, the present invention can be further improved as follows.

[0009] 进一步,一种耐高温蒸煮且耐急冻的食品封装材料,由以下重量份的物质组成: [0009] Further, one kind of cooking frozen food packaging resistant and high temperature resistant material, the following parts by weight of the composition of matter:

[0010] 均聚聚丙烯15-20份 [0010] 15-20 parts of homopolypropylene

[0011] 无规共聚聚丙烯65-70份 [0011] 65-70 parts polypropylene random copolymer

[0012] 高密度聚乙烯15-20份。 [0012] 15-20 parts of high density polyethylene.

[0013] 进一步,一种耐高温蒸煮且耐急冻的食品封装材料,由以下重量份的物质组成: [0013] Further, one kind of cooking frozen food packaging resistant and high temperature resistant material, the following parts by weight of the composition of matter:

[0014] 均聚聚丙烯17份 [0014] 17 parts of homopolypropylene

[0015]无规共聚聚丙烯67份 [0015] 67 parts polypropylene random copolymer

[0016] 高密度聚乙烯20份。 [0016] 20 parts of high density polyethylene.

[0017] 具体的,所述均聚聚丙烯为韩国GS H710或韩国SKH710。 [0017] Specifically, the homopolypropylene or GS H710 Korea Korea SKH710.

[0018]具体的,所述无规共聚聚丙稀为燕山石化B8101。 [0018] Specifically, the random copolymer of polypropylene Yanshan B8101.

[0019]具体的,所述高密度聚乙烯为5502。 [0019] Specifically, the high-density polyethylene 5502.

[0020]本发明还提供一种耐高温蒸煮且耐急冻的食品封装材料的制备方法,包括如下步骤: [0020] The present invention also provides a method for preparing high-temperature-resistant and cooking frozen food packaging material, comprising the steps of:

[0021] S1.将10-20重量份的均聚聚丙烯、60-70重量份的无规共聚聚丙烯和10-20重量份的高密度聚乙烯在高速搅拌机内充分搅拌,物料温度升高至70-100°C时停止搅拌,搅拌转速为700-1200rpm;搅拌至70-100°C内的任一温度停止搅拌,可保证原料混合均匀,且使原料内含有的少量水份蒸发排出。 [0021] S1. 10-20 parts by weight of polypropylene homopolymer, 60-70 parts by weight of a random copolymer of polypropylene and 10-20 parts by weight of a high density polyethylene sufficiently stirred in a homomixer, the material temperature to 70-100 ° C while stirring was stopped, the stirring speed is 700-1200rpm; stirred to any temperature within the 70-100 ° C stirring was stopped, to ensure uniform mixing of raw materials, and the starting material contained a small amount of water discharged was evaporated.

[0022] S2.使用挤塑机将S1中搅拌混匀后的物料混炼挤出得耐高温蒸煮且耐急冻的食品封装材料,其中加料段温度为190-210°(3,输送段温度为210-240°(3,机头温度为225-230°(3。 [0022] S2. The extruder used was stirred S1 is kneaded material obtained after extrusion mixing and resistant to high temperature cooking frozen food packaging material, wherein the feed section temperature was 190-210 ° (3, conveyor section temperature of 210-240 ° (3, head temperature 225-230 ° (3.

[0023] 在上述制备方法的基础上,本发明还可以做如下进一步改进。 [0023] Based on the above production method of the present invention can be further improved as follows.

[0024]进一步,S1中的均聚聚丙烯的重量份为15-20份,无规共聚聚丙烯的重量份为65-70份,高密度聚乙烯的重量份为15-20份。 [0024] Further, in the Sl parts by weight of homopolypropylene 15-20 parts, the parts by weight of the polypropylene random copolymer is 65-70 parts, parts by weight of high density polyethylene is 15-20 parts.

[0025]进一步,S1中的均聚聚丙烯的重量份为17份,无规共聚聚丙烯的重量份为67份,高密度聚乙烯的重量份为20份。 [0025] Further, in the Sl parts by weight of the homopolypropylene is 17 parts, the parts by weight of the polypropylene random copolymer is 67 parts, parts by weight of high density polyethylene was 20 parts.

[0026]具体的,所述均聚聚丙烯为韩国GS H710或韩国SKH710,所述无规共聚聚丙烯为燕山石化B8101,所述高密度聚乙烯为HDPE 5502,所述原料均为市售产品,其性能均与生产厂家描述相一致。 [0026] Specifically, the homopolypropylene or GS H710 Korea Korea SKH710, the polypropylene random copolymer Yanshan B8101, the high-density polyethylene HDPE 5502, the raw materials are commercially available products its properties are consistent with the description of the manufacturer.

[0027]按照本发明的方法将均聚聚丙烯、无规共聚聚丙烯及高密度聚乙烯三种材料按照特定比例混合,能够得到的一种耐高温蒸煮且耐急冻的食品封装材料,该封装材料兼具三种材料的部分优异性能:耐高温,其软化变形温度可达到135°C,即使用该封装塑料封装食品后可在较高的温度下进行杀菌,杀菌效果更好;耐急冻,其脆化温度可低至-40°C,即温度很低时,本发明得到的封装材料仍能适用;密度比常规丙烯和乙烯封装塑料的密度大,故其密闭性更好,有效提升隔氧能力;韧性好,挤压或碰撞时不易破裂。 [0027] The method of the present invention will be homopolymer polypropylene, random copolymer polypropylene and high density polyethylene three materials are mixed in a specific ratio, can be obtained in the high temperature resistant and resistant to cooking frozen food packaging material, which packaging materials with the excellent performance of part of the three materials: high temperature, softening deformation temperature can reach 135 ° C, i.e., after the use of the package plastic food package can be sterilized at higher temperatures, sterilization better; resistant acute freezing, temperatures as low embrittlement -40 ° C, i.e. when the temperature is low, the present invention was still suitable encapsulating material; density greater than the density of conventional plastic packaging of propylene and ethylene, so the tightness better, effective when the fracture toughness is not easy, or impact extrusion; enhance the oxygen barrier capacity.

具体实施方式 Detailed ways

[0028] 以下结合具体实施例对本发明的原理和特征进行描述,所举实例只用于解释本发明,并非用于限定本发明的范围。 [0028] The following specific embodiments in conjunction with the principles and features of this invention will be described, The examples are only for explaining the present invention and are not intended to limit the scope of the invention.

[0029] 本发明所使用方法未经特别说明的均为常规方法,本发明所使用的产品未经详细说明均为市售产品。 [0029] The method used in the present invention are not specifically described conventional methods, the present invention is used in the product has not been commercially available products are described in detail.

[0030] 实施例1 [0030] Example 1

[0031] 一种耐高温蒸煮且耐急冻的食品封装材料的制备,将l〇〇〇g的均聚聚丙烯、6000g 的无规共聚聚丙烯和l〇〇〇g的高密度聚乙烯在高速搅拌机内充分搅拌,物料温度升高至70 °C时停止搅拌,搅拌转速为700-1200rpm,使用挤塑机将搅拌混匀后的物料混炼挤出得耐高温蒸煮且耐急冻的食品封装材料,其中加料段温度为190_210°C,输送段温度为210-240°C, 机头温度为225-230°C,所述所述均聚聚丙烯为韩国GS H710,所述无规共聚聚丙烯为燕山石化B8101,所述高密度聚乙烯为HDPE 5502。 [0031] preparing a high temperature cooking resistance and frozen food packaging material, the l〇〇〇g homopolypropylene, 6000g of polypropylene random copolymer and high-density polyethylene in l〇〇〇g the high-speed mixer sufficiently stirred, stirring was stopped when the batch temperature increased to 70 ° C, stirring speed of 700-1200rpm, stirred the material using an extruder after mixing and kneaded and extruded to give resistance to high-temperature cooking frozen foods encapsulation material, wherein the temperature of the feed section 190_210 ° C, the temperature of the transportation segment 210-240 ° C, head temperature 225-230 ° C, said homopolypropylene Korean GS H710, the random copolymer polypropylene Yanshan petrochemical B8101, the high-density polyethylene HDPE 5502.

[0032] 实施例2 [0032] Example 2

[0033] 一种耐高温蒸煮且耐急冻的食品封装材料的制备,将1500g的均聚聚丙烯、6500g 的无规共聚聚丙烯和1500g的高密度聚乙烯在高速搅拌机内充分搅拌,物料温度升高至80 °C时停止搅拌,搅拌转速为700-1200rpm,使用挤塑机将搅拌混匀后的物料混炼挤出得耐高温蒸煮且耐急冻的食品封装材料,其中加料段温度为190_210°C,输送段温度为210-240°C, 机头温度为225-230°C,所述所述均聚聚丙烯为韩国GS H710,所述无规共聚聚丙烯为燕山石化B8101,所述高密度聚乙烯为HDPE 5502。 [0033] Preparation of cooked and frozen food packaging material resistant to a high temperature, 1500g of the homopolypropylene, random polypropylene and 6500 g of high density polyethylene 1500g sufficiently stirred in a homomixer, the material temperature stop stirring was raised to 80 ° C, stirring speed of 700-1200rpm, using an extruder kneading the material after the mixing with stirring to obtain extrusion resistance and high temperature cooking frozen food packaging material, wherein the temperature of the feed section 190_210 ° C, the temperature of the transportation segment 210-240 ° C, head temperature 225-230 ° C, said homopolypropylene Korean GS H710, the polypropylene random copolymer Yanshan B8101, the It said high-density polyethylene HDPE 5502.

[0034] 实施例3 [0034] Example 3

[0035] 一种耐高温蒸煮且耐急冻的食品封装材料的制备,将2000g的均聚聚丙烯、7000g 的无规共聚聚丙烯和2000g的高密度聚乙烯在高速搅拌机内充分搅拌,物料温度升高至80 °C时停止搅拌,搅拌转速为700-1200rpm,使用挤塑机将搅拌混匀后的物料混炼挤出得耐高温蒸煮且耐急冻的食品封装材料,其中加料段温度为190_210°C,输送段温度为210-240°C, 机头温度为225-230°C,所述所述均聚聚丙烯为韩国SKH710,所述无规共聚聚丙烯为燕山石化B8101,所述高密度聚乙烯为HDPE 5502。 [0035] Preparation of cooked and frozen food packaging material resistant to a high temperature, 2000g of the homopolypropylene, random polypropylene and 7000g 2000g HDPE sufficiently stirred in a homomixer, the material temperature stop stirring was raised to 80 ° C, stirring speed of 700-1200rpm, using an extruder kneading the material after the mixing with stirring to obtain extrusion resistance and high temperature cooking frozen food packaging material, wherein the temperature of the feed section 190_210 ° C, the temperature of the transportation segment 210-240 ° C, head temperature 225-230 ° C, said homopolypropylene Korean SKH710, the polypropylene random copolymer Yanshan B8101, the high density polyethylene HDPE 5502.

[0036] 实施例4 [0036] Example 4

[0037] 一种耐高温蒸煮且耐急冻的食品封装材料的制备,将1700g的均聚聚丙烯、6700g 的无规共聚聚丙烯和2000g的高密度聚乙烯在高速搅拌机内充分搅拌,物料温度升高至80 °C时停止搅拌,搅拌转速为700-1200rpm,使用挤塑机将搅拌混匀后的物料混炼挤出得耐高温蒸煮且耐急冻的食品封装材料,其中加料段温度为190_210°C,输送段温度为210-240°C, 机头温度为225-230°C,所述所述均聚聚丙烯为韩国SKH710,所述无规共聚聚丙烯为燕山石化B8101,所述高密度聚乙烯为HDPE 5502。 [0037] Preparation of cooked and frozen food packaging material resistant to a high temperature, 1700g of the homopolypropylene, random polypropylene of 6700 g of high density polyethylene and 2000g sufficiently stirred in a homomixer, the material temperature stop stirring was raised to 80 ° C, stirring speed of 700-1200rpm, using an extruder kneading the material after the mixing with stirring to obtain extrusion resistance and high temperature cooking frozen food packaging material, wherein the temperature of the feed section 190_210 ° C, the temperature of the transportation segment 210-240 ° C, head temperature 225-230 ° C, said homopolypropylene Korean SKH710, the polypropylene random copolymer Yanshan B8101, the high density polyethylene HDPE 5502.

[0038] 对比例1 [0038] Comparative Example 1

[0039] 相比于实施例1,对比例1仅不含有均聚聚丙烯。 [0039] Compared to Example 1, Comparative Example 1 not containing homopolypropylene only.

[0040] 对比例2 [0040] Comparative Example 2

[0041]相比于实施例1,对比例2仅不含有高密度聚乙烯。 [0041] Compared to Example 1, Comparative Example 2 does not only contain a high density polyethylene.

[0042] 对比例3 [0042] Comparative Example 3

[0043] 相比于实施例2,对比例3仅不含有均聚聚丙烯。 [0043] Compared to Example 2, Comparative Example 3 containing no homopolypropylene only.

[0044] 对比例4 [0044] Comparative Example 4

[0045] 相比于实施例2,对比例4仅不含有高密度聚乙烯。 [0045] Compared to Example 2, Comparative Example 4 not only contain a high density polyethylene.

[0046] 对实施例1~4和对比例1~4所制得的材料的性能进行测试,其中拉伸强度和断裂伸长率使用台湾高铁试验仪器厂的LJ-100型拉伸强度测试机,按照GB/T1040-92中的标准方法测试;软化变形温度使用台湾高铁试验仪器厂的GT-HV2000型机,按照GB1633-2000标准方法测试;简支梁缺口冲击强度使用承德精密试验机有限公司的JC型机,按照GB/T1043-93标准方法测试;脆化温度使用上海牟景实业有限公司的MU3091型冲击脆化温度测定仪, 按照GB5470-2008标准要求进行测定,所有测得数据如下表所示: [0046] Examples and test the performance of Comparative Examples 1 to 4 to produce materials 1 to 4, wherein the tensile strength and elongation at break using the Test Instrument Taiwan HSR LJ-100-type tensile strength tester according to the GB / T1040-92 standard method of test; softening and deformation temperatures used in Taiwan HSR test Instrument GT-HV2000 type machine according to GB1633-2000 standard test method; simply supported beam impact strength using notched Chengde precision testing machine Co. the JC type machine according to GB / T1043-93 standard method of test; embrittlement temperature using an impact type MU3091 Shanghai Mu King Kong Limited brittle temperature meter, measured according to standard GB5470-2008, all the measured data in the following table below:

[0047] [0047]

Figure CN105504527AD00061

[0048]以上所述仅为本发明的较佳实施例,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 [0048] The foregoing is only preferred embodiments of the present invention, not intended to limit the present invention within the spirit and principle of the present invention, any modification, equivalent replacement, or improvement, it should be included in the present within the scope of the invention.

Claims (12)

1. 一种耐高温蒸煮且耐急冻的食品封装材料,其特征在于,由以下重量份的物质组成: 均聚聚丙烯10-20份无规共聚聚丙烯60-70份高密度聚乙烯10-20份。 A high-temperature resistant and cooking frozen food packaging material, characterized by the following parts by weight of the composition of matter: homopolypropylene, random polypropylene 60-70 10-20 parts high-density polyethylene 10 parts -20 parts.
2. 根据权利要求1所述的一种耐高温蒸煮且耐急冻的食品封装材料,其特征在于,由以下重量份的物质组成: 均聚聚丙烯15-20份无规共聚聚丙烯65-70份高密度聚乙烯15-20份。 The high temperature resistant cooker according to claim 1 and frozen food packaging resistant material, characterized by consisting of the following parts by weight: 15-20 parts of homopolymer polypropylene random copolymer polypropylene 65 70 parts of a high density polyethylene 15-20 parts.
3. 根据权利要求1所述的一种耐高温蒸煮且耐急冻的食品封装材料,其特征在于,由以下重量份的物质组成: 均聚聚丙烯17份无规共聚聚丙烯67份高密度聚乙烯20份。 The high temperature resistant cooker according to claim 1 and frozen food packaging resistant material, characterized by consisting of the following parts by weight: 17 parts of homopolymer polypropylene random copolymer polypropylene 67 parts of high density 20 parts of polyethylene.
4. 根据权利要求1至3任一项所述的一种耐高温蒸煮且耐急冻的食品封装材料,其特征在于,所述均聚聚丙烯为韩国GS H710或韩国SKH710。 The food package 1-1 kinds of refractory materials according to any of claims 3 and resistance to cooking frozen claim, wherein said homopolypropylene or GS H710 Korea Korea SKH710.
5. 根据权利要求1至3任一项所述的一种耐高温蒸煮且耐急冻的食品封装材料,其特征在于,所述无规共聚聚丙烯为燕山石化B8101。 High temperature resistant according to any one of claims 1 to 3 and cooking frozen food packaging resistant material, characterized in that said polypropylene is a random copolymer Yanshan B8101.
6. 根据权利要求1至3任一项所述的一种耐高温蒸煮且耐急冻的食品封装材料,其特征在于,所述高密度聚乙烯为HDPE 5502。 The food package 1-1 kinds of refractory materials according to any of claims 3 and resistance to cooking frozen claim, wherein said high-density polyethylene HDPE 5502.
7. -种耐高温蒸煮且耐急冻的食品封装材料的制备方法,其特征在于,包括如下步骤: 7. - The method of producing high-temperature resistant and cooking frozen food packaging material, characterized by comprising the steps of:
51. 将10-20重量份的均聚聚丙烯、60-70重量份的无规共聚聚丙烯和10-20重量份的高密度聚乙烯在高速搅拌机内充分搅拌,物料温度升高至70-100°C时停止搅拌,搅拌转速为700-1200rpm; 51. 10-20 parts by weight of polypropylene homopolymer, 60-70 parts by weight of a random copolymer of polypropylene and 10-20 parts by weight of a high density polyethylene sufficiently stirred in a high speed mixer, batch temperature was raised to 70 100 ° C the stirring was stopped, the stirring speed of 700-1200rpm;
52. 使用挤塑机将S1中搅拌混匀后的物料混炼挤出得耐高温蒸煮且耐急冻的食品封装材料,其中加料段温度为190-210°(3,输送段温度为210-240°(3,机头温度为225-230°(3。 52. The use of the material after the extruder S1 stirring mixing kneading extruder to obtain and resistant to high temperature cooking frozen food packaging material, wherein the feed section temperature was 190-210 ° (3, conveyor section temperature 210- 240 ° (3, head temperature 225-230 ° (3.
8. 根据权利要求7所述的一种耐高温蒸煮且耐急冻的食品封装材料的制备方法,其特征在于,S1中的均聚聚丙烯的重量份为15-20份,无规共聚聚丙烯的重量份为65-70份,高密度聚乙稀的重量份为15-20份。 According to claim 7, wherein said high temperature resistant preparation and cooking of frozen food packaging resistant material, characterized in that, in the Sl parts by weight of homopolypropylene 15-20 parts, random copolymerized 65-70 parts by weight of propylene parts, parts by weight of high density polyethylene is 15-20 parts.
9. 根据权利要求7所述的一种耐高温蒸煮且耐急冻的食品封装材料的制备方法,其特征在于,S1中的均聚聚丙烯的重量份为17份,无规共聚聚丙烯的重量份为67份,高密度聚乙烯的重量份为20份。 According to claim 7, wherein said high temperature resistant resistant preparing frozen food packaging material and cooking, wherein, in the Sl homopolypropylene is 17 parts by weight parts of the polypropylene random copolymer 67 parts by weight of parts, parts by weight of high density polyethylene was 20 parts.
10. 根据权利要求7至9任一项所述的一种耐高温蒸煮且耐急冻的食品封装材料的制备方法,其特征在于,所述均聚聚丙烯为韩国GS H710或韩国SKH710,所述无规共聚聚丙烯为燕山石化B8101,所述高密度聚乙烯为5502。 Preparing food packaging material 10. A high temperature 7-1 according to any one of claims 9 and resistance to cooking of frozen, wherein said homopolypropylene or GS H710 Korea Korea SKH710, the said polypropylene is a random copolymer Yanshan B8101, said high-density polyethylene 5502.
CN201510894919.4A 2015-12-07 2015-12-07 High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof CN105504527A (en)

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