WO2017128745A1 - 复合型高分子蜡的制备方法 - Google Patents

复合型高分子蜡的制备方法 Download PDF

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WO2017128745A1
WO2017128745A1 PCT/CN2016/099818 CN2016099818W WO2017128745A1 WO 2017128745 A1 WO2017128745 A1 WO 2017128745A1 CN 2016099818 W CN2016099818 W CN 2016099818W WO 2017128745 A1 WO2017128745 A1 WO 2017128745A1
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composite polymer
polymer wax
wax
producing
raw material
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PCT/CN2016/099818
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English (en)
French (fr)
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曹春华
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扬州金橡塑化工材料厂
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Publication of WO2017128745A1 publication Critical patent/WO2017128745A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/06—Waxes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene

Definitions

  • the invention relates to a method for preparing a polymer wax, in particular to a method for preparing a composite polymer wax.
  • polymer wax generally uses paraffin as raw material, but the cost of paraffin wax is relatively high, the melting point is only 60 degrees. The ideal melting point must be cracked with ethylene or propylene. The production process is also complicated, and there are high-risk safety hazards. In addition, the use of paraffin as a raw material, the quality of the products produced is not high, the whiteness and transparency of the products are not good.
  • an object of the present invention is to provide a method for preparing a composite polymer wax which can increase the average molecular weight, hardness and melting point of the product and reduce the production cost.
  • a preparation method of a composite polymer wax comprising the following steps:
  • the mass percentage of the main raw materials in the mixture is 20% to 95%, and the mass percentage of the auxiliary materials is 5% to 80%.
  • the molecular weight and melting point of the polymer wax can be adjusted by adjusting the amount of cracked polyethylene and/or cracked polypropylene according to actual needs.
  • the molecular weight can be adjusted to 2000-5000 and the melting point is 95-120 °C.
  • the temperature at which the high temperature is melted is 120 to 180 °C.
  • the stirring time is 30 to 60 minutes.
  • the mixed liquid cooling mode is water cooling.
  • the cooled composite polymer wax is sprayed into semicircular particles using a steel belt water circulating granulator.
  • the cooled composite polymer wax is cut into a sheet shape using a steel belt or a drum water circulation microtome.
  • the mixed liquid is cooled by air cooling.
  • the cooled composite polymer wax is sprayed into a bead or powder using a bead tower.
  • the cracked polyethylene is a polyethylene having a molecular weight of about 6000 to 7000 obtained by high temperature cracking of a high molecular weight polyethylene (for example, a molecular weight of about 1 W).
  • the cracked polypropylene is a polypropylene having a molecular weight of about 6000 to 7000 obtained by high-temperature cracking of a high molecular weight polypropylene (for example, a molecular weight of about 1 W).
  • the invention has the following advantages: the method of the invention adopts coal-based synthetic wax and/or crude wax as main raw materials, and the two waxes have good gloss and transparency, and can completely replace paraffin and polyethylene cracking polymer. wax.
  • the method of the invention has the advantages of simple process and low cost, and the product quality is completely achieved, even exceeding the standard of using paraffin as raw material.
  • the coal-based synthetic wax and the crude wax used in the invention have melting points of about 105 degrees and 85 degrees, respectively, and have high melting point, good whiteness and transparency, good compatibility with petroleum products, and cost lower than paraffin by 150 yuan/ Tons, can be used for plastic masterbatch, filled masterbatch and horse road markings, hot melt adhesives, etc.
  • the method of the invention can adjust the molecular weight, melting point and viscosity of the polymer wax according to actual needs.
  • the coal-based wax and the crude wax are a new material for the market auxiliary.
  • the invention uses coal-based synthetic wax and/or crude wax as main raw materials, and appropriately adds cracked polyethylene and/or polypropylene as auxiliary materials, and obtains desired products by high temperature cracking.
  • the coal-based synthetic wax is used as a main raw material, and the cracked polyethylene is added to the main raw material to obtain a mixture.
  • the mass percentage of the coal-based synthetic wax in the mixture is 20%, and the mass percentage of the cracked polyethylene is 80%.
  • the mixture was melted at a high temperature of 120 ° C and stirred uniformly (30 minutes) to obtain a mixed liquid.
  • the mixed liquid was subjected to water cooling to obtain a solid composite polymer wax, and after cooling, the cooled composite polymer wax was sprayed into semicircular particles using a steel belt water circulating granulator.
  • the crude wax is used as a main raw material, and the cracked polyethylene is added to the main raw material to obtain a mixture.
  • the mass percentage of the crude wax in the mixture is 20%, and the mass percentage of the cracked polyethylene is 80%.
  • the mixture was melted at a high temperature of 140 ° C and stirred uniformly (30 minutes) to obtain a mixed liquid.
  • the mixed liquid was subjected to water cooling to obtain a solid composite polymer wax, and after cooling, the cooled composite polymer wax was cut into a sheet shape using a steel belt or a drum water circulation microtome.
  • coal-based synthetic wax and crude wax have a mass percentage of 1:1, which is added to the main raw materials.
  • the polyethylene was cracked to obtain a mixture in which the mass percentage of the main raw material was 40%, and the mass percentage of the cracked polyethylene was 60%.
  • the mixture was melted at a high temperature of 130 ° C and stirred uniformly (30 minutes) to obtain a mixed liquid.
  • the mixed liquid was subjected to water cooling to obtain a solid composite polymer wax, and after cooling, the cooled composite polymer wax was sprayed into a bead or powder using a bead tower.
  • the coal-based synthetic wax and the crude wax are used as the main raw materials, and the mass percentage of the coal-based synthetic wax and the crude wax is 1:1, and the cracked polypropylene is added to the main raw material to obtain a mixture, and the mass percentage of the main raw material in the mixture is 95. %, the mass percentage of cracked polypropylene is 5%.
  • the mixture was melted at a high temperature of 170 ° C and stirred uniformly (50 minutes) to obtain a mixed liquid.
  • the mixed liquid was subjected to water cooling to obtain a solid composite polymer wax, and after cooling, the cooled composite polymer wax was sprayed into a bead or powder using a bead tower.
  • Crude polypropylene is used as a main raw material, and cracked polypropylene is added to the main raw material to obtain a mixture.
  • the crude wax accounts for 50% by mass and the cracked polypropylene accounts for 50% by mass.
  • the mixture was melted at a high temperature of 170 ° C and stirred uniformly (40 minutes) to obtain a mixed liquid.
  • the mixed liquid was subjected to water cooling to obtain a solid composite polymer wax, and after cooling, the cooled composite polymer wax was cut into a sheet shape using a steel belt or a drum water circulation microtome.
  • the coal-based synthetic wax is used as a main raw material, and the cracked polypropylene is added to the main raw material to obtain a mixture.
  • the mass percentage of the coal-based synthetic wax in the mixture is 20%, and the mass percentage of the cracked polypropylene is 80%.
  • the mixture is melted at a high temperature of 120 ° C, stirred uniformly (30 minutes) to obtain a mixed liquid; the mixed liquid is subjected to water cooling to obtain a solid composite polymer wax, which is cooled and then cooled using a steel belt water circulating granulator.
  • the molecular wax is sprayed into semi-circular particles.
  • coal-based synthetic wax and crude wax as the main raw materials, the coal-based synthetic wax and crude wax have a mass percentage of 1:1, adding cracked polyethylene, cracking polypropylene to the main raw material, obtaining a mixture, cracking polyethylene and cracking polypropylene.
  • the mass percentage is 1:1, the mass percentage of the main raw material in the mixture is 30%, and the mass percentage of the cracked polyethylene and the cracked polypropylene is 70%; the mixture is melted at a high temperature of 180 ° C, and the mixture is evenly stirred (60 In a minute, a mixed liquid is obtained; the mixed liquid is subjected to water cooling to obtain a solid composite polymer wax, and after cooling, the cooled composite polymer wax is cut into a sheet shape using a steel belt or a drum water circulation microtome.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

本发明公开了一种复合型高分子蜡的制备方法，包括以下步骤：以煤基合成蜡和/或粗蜡为主要原料，向主要原料中添加裂解聚乙烯和/或裂解聚丙烯，得到混合物；将混合物进行高温熔解，搅拌均匀，得到混合液体；将混合液体冷却并造型，得到固态复合型高分子蜡。本发明的方法采用可完全替代石蜡的煤基合成蜡和/或粗蜡为主要原料，生产工艺简便且成本低，而且所得产品完全达到或超过以石蜡为原料的产品质量标准。

Description

复合型高分子蜡的制备方法 技术领域
本发明涉及一种高分子蜡的制备方法，尤其涉及一种复合型高分子蜡的制备方法。
背景技术
高分子蜡的生产一般使用石蜡为原料，但是石蜡成本比较高，熔点只有60度，调节理想的熔点必须要与乙烯或丙烯裂解，生产工艺也比较复杂，存在高危安全隐患。此外，采用石蜡为原料，生产出来的产品品质不高，产品的白度和透明度也不好。
发明内容
为解决上述技术问题，本发明的目的是提供一种复合型高分子蜡的制备方法，该方法能够提高产品的平均分子量、硬度和熔点，并降低生产成本。
为了实现上述目的，本发明采用了以下技术方案：
一种复合型高分子蜡的制备方法，包括以下步骤：
(1)以煤基合成蜡和/或粗蜡为主要原料，向主要原料中添加辅料得到混合物，其中辅料为裂解聚乙烯和/或聚丙烯；
(2)将混合物进行高温熔解，搅拌均匀，得到混合液体；
(3)将混合液体冷却并造型，得到固态复合型高分子蜡。
优选地，步骤(1)中，混合物中主要原料的质量百分数为20％-95％，辅料的质量百分数为5％-80％。
在实际应用中，可根据实际需要通过调节裂解聚乙烯和/或裂解聚丙烯的量来调节高分子蜡的分子量及熔点，例如，可将分子量调节到2000-5000，熔点为95-120℃。
优选地，步骤(2)中，高温熔解的温度为120-180℃。
优选地，步骤(2)中，搅拌的时间为30-60分钟。
优选地，步骤(3)中，混合液体冷却方式为水冷却。
更优选地，水冷却后，使用钢带水循环造粒机将冷却后的复合型高分子蜡喷成半圆颗粒。
更优选地，水冷却后，使用钢带或滚筒水循环切片机将冷却后的复合型高分子蜡切成片状。
优选地，步骤(3)中，所述混合液体冷却方式为风冷却。
更优选地，风冷却后，使用喷珠塔将冷却后的复合型高分子蜡喷成微珠状或粉状。
在本发明中，裂解聚乙烯为高分子量聚乙烯(例如，分子量为1W左右)经高温裂解后得到的分子量为6000-7000左右的聚乙烯。
在本发明中，裂解聚丙烯为高分子量聚丙烯(例如，分子量为1W左右)经高温裂解后得到的分子量为6000-7000左右的聚丙烯。
借由上述方案，本发明具有以下优点：本发明方法采用煤基合成蜡和/或粗蜡为主要原料，这两种蜡具有良好的光泽度和透明度，可完全替代石蜡与聚乙烯裂解高分子蜡。本发明的方法工艺简便且成本低，产品质量完全达到，甚至超过以石蜡为原料的标准。本发明所采用的煤基合成蜡与粗蜡，熔点分别在105度和85度左右，它们的熔点高，白度、透明度好，与石油产品相容性好，且成本比石蜡低150元/吨，能够用于塑料色母、填充母料及马路标线、热熔胶等。本发明的方法可根据实际需求来调整高分子蜡的的分子量、熔点和粘度，目前此煤基蜡和粗蜡为市场助剂的一种新材料。
具体实施方式
下面结合实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。
本发明以煤基合成蜡和/或粗蜡为主要原料，适当添加裂解聚乙烯和/或聚丙烯作为辅料，经高温裂解制得所需产品。
实施例1
以煤基合成蜡为主要原料，在主要原料中添加裂解聚乙烯，得到混合物，该混合物中煤基合成蜡所占的质量百分数为20％，裂解聚乙烯所占的质量百分数为80％。将混合物在120℃高温熔解，搅拌均匀(30分钟)，得到混合液体。将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用钢带水循环造粒机将冷却后的复合型高分子蜡喷成半圆颗粒。
实施例2
以粗蜡为主要原料，在主要原料中添加裂解聚乙烯，得到混合物，该混合物中粗蜡所占的质量百分数为20％，裂解聚乙烯所占的质量百分数为80％。将混合物在140℃高温熔解，搅拌均匀(30分钟)，得到混合液体。将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用钢带或滚筒水循环切片机将冷却后的复合型高分子蜡切成片状。
实施例3
以煤基合成蜡和粗蜡为主要原料，煤基合成蜡和粗蜡质量百分比为1:1，在主要原料中添 加裂解聚乙烯，得到混合物，该混合物中主要原料所占的质量百分数为40％，裂解聚乙烯所占的质量百分数为60％。将混合物在130℃高温熔解，搅拌均匀(30分钟)，得到混合液体。将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用喷珠塔将冷却后的复合型高分子蜡喷成微珠状或粉状。
实施例4
以煤基合成蜡和粗蜡为主要原料，煤基合成蜡和粗蜡质量百分比为1:1，在主要原料中添加裂解聚丙烯，得到混合物，该混合物中主要原料所占的质量百分数为95％，裂解聚丙烯所占的质量百分数为5％。将混合物在170℃高温熔解，搅拌均匀(50分钟)，得到混合液体。将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用喷珠塔将冷却后的复合型高分子蜡喷成微珠状或粉状。
实施例5
以粗蜡为主要原料，在主要原料中添加裂解聚丙烯，得到混合物，该混合物中粗蜡所占的质量百分数为50％，裂解聚丙烯所占的质量百分数为50％。将混合物在170℃高温熔解，搅拌均匀(40分钟)，得到混合液体。将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用钢带或滚筒水循环切片机将冷却后的复合型高分子蜡切成片状。
实施例6
以煤基合成蜡为主要原料，在主要原料中添加裂解聚丙烯，得到混合物，该混合物中煤基合成蜡所占的质量百分数为20％，裂解聚丙烯所占的质量百分数为80％。将混合物进行120℃高温熔解，搅拌均匀(30分钟)，得到混合液体；将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用钢带水循环造粒机将冷却后的复合型高分子蜡喷成半圆颗粒。
实施例7
以煤基合成蜡和粗蜡为主要原料，煤基合成蜡和粗蜡质量百分比为1:1，在主要原料中添加裂解聚乙烯、裂解聚丙烯，得到混合物，裂解聚乙烯和裂解聚丙烯的质量百分比为1:1，该混合物中主要原料所占的质量百分数为30％，裂解聚乙烯和裂解聚丙烯总共所占的质量百分数为70％；将混合物进行180℃高温熔解，搅拌均匀(60分钟)，得到混合液体；将混合液体进行水冷却，得到固态复合型高分子蜡，冷却后使用钢带或滚筒水循环切片机将冷却后的复合型高分子蜡切成片状。
以上所述仅是本发明的优选实施方式，并不用于限制本发明，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和变型， 这些改进和变型也应视为本发明的保护范围。

Claims (11)

  1. 一种复合型高分子蜡的制备方法，其特征在于：包括以下步骤：
    (1)以煤基合成蜡和/或粗蜡为主要原料，向所述主要原料中添加辅料得到混合物，其中所述辅料为裂解聚乙烯和/或裂解聚丙烯；
    (2)将混合物进行高温熔解，搅拌均匀，得到混合液体；及
    (3)将混合液体冷却并造型，得到固态复合型高分子蜡。
  2. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：步骤(1)中，所述混合物中主要原料的质量百分数为20％-95％，所述辅料的质量百分数为5％-80％。
  3. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：步骤(2)中，高温熔解的温度为120-180℃。
  4. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：步骤(2)中，搅拌的时间为30-60分钟。
  5. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：步骤(3)中，所述混合液体冷却方式为水冷却。
  6. 根据权利要求5所述的复合型高分子蜡的制备方法，其特征在于：冷却后使用钢带水循环造粒机将冷却后的复合型高分子蜡喷成半圆颗粒。
  7. 根据权利要求5所述的复合型高分子蜡的制备方法，其特征在于：冷却后使用钢带或滚筒水循环切片机将冷却后的复合型高分子蜡切成片状。
  8. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：步骤(3)中，所述混合液体冷却方式为风冷却。
  9. 根据权利要求8所述的复合型高分子蜡的制备方法，其特征在于：冷却后使用喷珠塔将冷却后的复合型高分子蜡喷成微珠状或粉状。
  10. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：所述裂解聚乙烯为分子量为6000-7000的聚乙烯。
  11. 根据权利要求1所述的复合型高分子蜡的制备方法，其特征在于：所述裂解聚丙烯为分子量为6000-7000的聚丙烯。
PCT/CN2016/099818 2016-01-30 2016-09-23 复合型高分子蜡的制备方法 WO2017128745A1 (zh)

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CN105542489B (zh) * 2016-01-30 2019-03-29 扬州金橡塑化工材料厂 一种用聚丙烯裂解制备高分子蜡的方法

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