CN105885181A - 一种聚烯烃木塑用发泡母料的制备方法 - Google Patents

一种聚烯烃木塑用发泡母料的制备方法 Download PDF

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CN105885181A
CN105885181A CN201610470268.0A CN201610470268A CN105885181A CN 105885181 A CN105885181 A CN 105885181A CN 201610470268 A CN201610470268 A CN 201610470268A CN 105885181 A CN105885181 A CN 105885181A
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preparation
temperature
foaming
wood
low
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魏军山
柳峰
郭京雷
蔡红珍
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SHANDONG LVSEN WOOD-PLASTIC COMPOSITE Co Ltd
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SHANDONG LVSEN WOOD-PLASTIC COMPOSITE Co Ltd
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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
    • 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
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • 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
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—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
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

Abstract

一种聚烯烃木塑用发泡母料的制备方法，其特征是由下列重量份的原料组成：低熔点低密度聚乙烯85‑100份，发泡剂55‑65份，聚乙烯蜡3‑5份，纳米凹凸棒土3‑5份；制备方法步骤如下：称取上述重量份的各种原料，将原料依次加入高低温混料机中，升温至80℃‑100℃、混合10‑15min，然后降温至50℃、混合5min出料，再将混合后的物料加入双螺杆挤出机中挤出造粒，挤出时加料段至机头温度设置在135℃‑110℃之间，温度逐渐降低，即得聚烯烃木塑用发泡母料。有益效果是：本发泡母料使得木塑发泡制品泡孔更均一、发泡倍率更高、发泡工艺更易控制，发泡母料为颗粒状，使用时不会带来粉尘污染。

Description

一种聚烯烃木塑用发泡母料的制备方法
技术领域
本发明涉及一种聚烯烃木塑用发泡母料的制备方法，具体是利用低熔点低密度聚乙烯、发泡剂及发泡助剂为原料采用双螺杆挤出反向低温制备母料。
背景技术
聚烯烃木塑由于其环保、成型效率高，近年来被越来越广泛的应用于建筑领域，但聚烯烃木塑密度较大，隔热、消音性能不佳限制了其应用，可通过发泡工艺制备质轻的聚烯烃木塑发泡材料，但如将发泡剂直接加入聚烯烃木塑配方进行发泡成型，木塑产品经常会因发泡剂分散不均，造成泡孔大小不均、产品生产工艺不稳定等问题；采用低熔点聚烯烃树脂载体、发泡剂及发泡助剂经双螺杆挤出机挤出造粒，将造粒后物料用于木塑配方，可制备泡孔更均一、性能更佳的木塑发泡制品。
发明内容
本发明的目的是针对现有技术存在的问题，提供一种聚烯烃木塑用发泡母料的制备方法，它有助于解决聚烯烃木塑发泡制品泡孔不均、发泡工艺难控制等问题，使木塑发泡制品泡孔更均匀、发泡倍率更高、发泡工艺更好控制。
本发明采用的技术方案是：一种聚烯烃木塑用发泡母料的制备方法，其特征是由下列重量份的原料组成：
低熔点低密度聚乙烯 85-100份，
发泡剂 55-65份，
聚乙烯蜡 3-5份，
纳米凹凸棒土 3-5份；
制备方法步骤如下：称取上述重量份的各种原料，将原料依次加入高低温混料机中，升温至80℃-100℃、混合10-15min，然后降温至50℃、混合5min出料，再将混合后的物料加入双螺杆挤出机中挤出造粒，挤出时加料段至机头温度设置在135℃-110℃之间，温度逐渐降低，即得聚烯烃木塑用发泡母料。
上述方案中，所述低熔点低密度聚乙烯的熔点为90℃-100℃。
上述方案中，所述发泡剂的分解温度为200℃。
本发明的有益效果是：本发泡母料使得木塑发泡制品泡孔更均一、发泡倍率更高、发泡工艺更易控制，发泡母料为颗粒状，使用时不会带来粉尘污染。
具体实施方式
下面结合实施例进一步说明本发明的方案和效果。
实施例
一种聚烯烃木塑用发泡母料的制备方法，准确计量后的原料：低熔点低密度聚乙烯95份，发泡剂60份，聚乙烯蜡4份，纳米凹凸棒土4份；将以上各原料依次加入高低温混料机中，升温至80℃-100℃、混合10-15min，然后降温至50℃、混合5min出料，再将混合后物料加入双螺杆挤出机中挤出造粒，挤出时加料段至机头温度设置在135℃-110℃之间，温度逐渐降低，即得聚烯烃木塑用发泡母料；该发泡母料可制备泡孔泡孔大小均匀、发泡倍率更高的木塑发泡制品。

Claims (3)

1.一种聚烯烃木塑用发泡母料的制备方法，其特征在于：由下列重量份的原料组成：
低熔点低密度聚乙烯 85-100份，
发泡剂 55-65份，
聚乙烯蜡 3-5份，
纳米凹凸棒土 3-5份；
制备方法步骤如下：称取上述重量份的各种原料，将原料依次加入高低温混料机中，升温至80℃-100℃、混合10-15min，然后降温至50℃、混合5min出料，再将混合后的物料加入双螺杆挤出机中挤出造粒，挤出时加料段至机头温度设置在135℃-110℃之间，温度逐渐降低，即得聚烯烃木塑用发泡母料。
2.根据权利要求1所述的一种聚烯烃木塑用发泡母料的制备方法，其特征在于：所述低熔点低密度聚乙烯的熔点为90℃-100℃。
3.根据权利要求1所述的一种聚烯烃木塑用发泡母料的制备方法，其特征在于：所述发泡剂的分解温度为200℃。
CN201610470268.0A 2016-06-26 2016-06-26 一种聚烯烃木塑用发泡母料的制备方法 Pending CN105885181A (zh)

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CN107141557A (zh) * 2017-06-05 2017-09-08 青岛科标化工分析检测有限公司 一种化学发泡母粒

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Application publication date: 20160824