Tear-resistant PBSeT/PP/HDPE composite material and preparation method thereof
A composite material and tear-resistant technology, applied in the field of polymer materials, can solve the problems of polyethylene changing properties, difficulty in secondary recycling of materials, etc., to achieve high market value, improve tear strength and toughness.
Pending Publication Date: 2022-05-10
ZHONGBEI UNIV
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Problems solved by technology
Obviously, only changing the components to improve the performance or adding branched polyethylene to change the performance seems to be rigid; and for recycled composite materials, whether it is blended with other materials or added with other modifiers, it will affect the quality of the material. Difficulties in secondary recycling
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0021] By melt blending method, put 28.8g PP and 28.8g HDPE in a 500ml glass reactor, adjust the rotation speed to 35rad / min, first melt blend at 200°C for 25min; After melting, continue blending at 190°C for 20 minutes, cool to room temperature, and record as EX-1 when the experiment is over.
Embodiment 2
[0023] By melt blending method, put 27.6g PP and 27.6g HDPE in a 500ml glass reactor, adjust the rotation speed to 35rad / min, first melt blend at 200°C for 25min; After melting, continue blending at 190°C for 20 minutes, cool to room temperature, and the experiment is over, which is recorded as EX-2.
Embodiment 3
[0025] By melt blending method, put 26.4g PP and 26.4g HDPE in a 500ml glass reactor, adjust the rotation speed to 35rad / min, first melt blend at 200°C for 25min; After melting, continue blending at 190°C for 20 minutes, cool to room temperature, and the experiment is over, which is recorded as EX-3.
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Abstract
The invention belongs to the field of high polymer materials, and particularly relates to a tear-resistant PBSeT / PP / HDPE composite material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by mass: 40-50 parts of PP (Polypropylene), 40-50 parts of HDPE (High-Density Polyethylene) and 0-20 parts (not 0) of PBSeT. The preparation method comprises the following steps: carrying out first-stage melt blending on PP and HDPE according to a mass ratio, adding PBSeT according to a mass ratio after the PP and the HDPE are completely melted, and continuously blending after the PBSeT is melted, so as to obtain the tear-resistant PBSeT / PP / HDPE composite material; according to the melt blending method provided by the invention, when the addition amount of PBSeT in the composite material accounts for 12%, the tear strength of the composite material is improved by 40.36 times compared with the tear strength of a composite material without PBSeT; when the addition amount of PBSeT in the composite material accounts for 12%, the elongation at break of the composite material is improved by 124.7% compared with the elongation at break of the composite material without PBSeT. The preparation method provided by the invention can greatly improve the tear strength and toughness of the composite material, and has very high market value.
Description
technical field [0001] The invention belongs to the field of polymer materials and relates to the research of PP / HDPE composite materials, in particular to a tear-resistant PBSeT / PP / HDPE composite material and a preparation method thereof. Background technique [0002] The development of today's society has promoted the richness and variety of the material field, and a single material can no longer meet the current situation. The development and research of composite materials have become the focus of current material research and will continue. Among them, the research and preparation of polymer composite materials has always been an indispensable part of the polymer field. Different from the Institute of Functional Polymers, the research of traditional polymers plays a key role in expanding the application of existing polymer materials, such as ABS and HIPS, PPO and HIPS, PP and PE, etc. Compared with single materials, the excellent properties of composite materials have ...
Claims
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IPC IPC(8): C08L23/12C08L23/06C08L67/02
CPCC08L23/12C08L23/06C08L2207/062C08L67/02
Inventor 王文生李枝茂李萍李迎春刘洪畅郭迎奥刘彤董红岭
Owner ZHONGBEI UNIV