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Coating fabric capable of improving durability of wood-plastic composite material and preparation method of coating fabric
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A wood-plastic composite material and durability technology, which is applied in the field of wood-plastic composite materials, can solve the problems of limited improvement in comprehensive durability and single performance of wood-plastic composite materials, and achieve low melt flow index, low water absorption, and strong water vapor barrier sexual effect
Active Publication Date: 2019-10-25
赣州能之光新材料有限公司
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[0003] In view of the single performance of existing co-extruded fabrics and the limited improvement of the comprehensive durability of wood-plastic composite materials, the purpose of the present invention is to provide a coated fabric that ca
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0026] A covering fabric that can improve the durability of wood-plastic composite materials is made of the following components by weight: low-flow HDPE 70g, high-flow HDPE 5g, montmorillonite 0.5g, HDPE grafted maleic anhydride 0.5g, Dicumyl peroxide 0.1g, antioxidant 225 0.1g, UV-531 0.5g, low fluidity HDPE is HDPE with a melt flow index of 0.1g / 10min, high fluidity HDPE is a melt flow index of 20g / 10min HDPE.
[0027] The above covering fabric that can improve the durability of wood-plastic composite materials is made through the following steps:
[0028] (1) uniformly mix low-fluidity HDPE and dicumyl peroxide above ratio to obtain blend 1;
[0029] (2) Uniformly mix high fluidity HDPE, montmorillonite, HDPE grafted maleic anhydride, antioxidant 225, UV-531 to obtain blend 2;
[0030] (3) Melt blend 1 at the entrance of the front section of the twin-screw extruder, melt blend 2 at the entrance of the middle section of the twin-screw extruder, and granulate the particles...
Embodiment 2
[0032]A covering fabric that can improve the durability of wood-plastic composite materials, the preparation process is the same as in Example 1, the difference from Example 1 is that the covering fabric is made of the following components by weight: low-fluidity HDPE 85g, high fluidity HDPE20g, montmorillonite 5g, HDPE grafted glycidyl methacrylate 5g, di-tert-butyl peroxide, 2g, antioxidant 215 1g, UV-3270.1g, low fluidity HDPE as a melt HDPE with a flow index of 2g / 10min, high fluidity HDPE is HDPE with a melt flow index of 10g / 10min.
Embodiment 3
[0034] A covering fabric that can improve the durability of wood-plastic composite materials, the production process is the same as in Example 1, the difference from Example 1 is that the covering is made of the following components by weight: low-fluidity HDPE 80g , High fluidity HDPE 15g, rectorite 4g, HDPE grafted methacrylic acid 3g, di-tert-amyl peroxide 1.0g, antioxidant 225 0.6g, UV-531 0.3g, low fluidity HDPE is melt flow HDPE with an index of 0.9g / 10min, high fluidity HDPE is HDPE with a melt flow index of 8g / 10min.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to the technical field of wood-plastic composite materials, and provides a coating fabric capable of improving the durability of a wood-plastic composite material and a preparation method of the coating fabric. The coating fabric aims to solve the problems that properties of existing co-extrusion fabrics are single, and improvement of the comprehensive durability of the wood-plastic composite materials is limited. The coating fabric is prepared from low-fluidity HDPE, high-fluidity HDPE, an inorganic filler, a compatilizer, a peroxide crosslinking agent, an antioxidant and an ultraviolet absorber, the low-fluidity HDPE is HDPE with the melt index being 0.1-2 g/10 min, the high-fluidity HDPE is HDPE with the melt index being 5-20 g/10 min, and in the preparation process, two sections are added into a twin-screw extruder for granulation. The coating fabric has good weather resistance, the moisture barrier performance and abrasion resistance, and is used as a fabricof a co-extrusion type wood-plastic composite material, the comprehensive durability of the co-extrusion type wood-plastic composite material can be greatly improved, and the good application value and market prospects are achieved.
Description
technical field [0001] The invention relates to the technical field of wood-plastic composite materials, in particular to a covering fabric capable of improving the durability of wood-plastic composite materials and a preparation method thereof. Background technique [0002] Wood-plastic composite material is a kind of environmentally friendly composite material made of polymer material as matrix, plant fiber as filling component, supplemented with other functional additives, melt extrusion, molding and other processes, widely used in building materials, Furniture, logistics packaging and other fields. Due to the presence of a large amount of hydrophilic plant fibers in the traditional wood-plastic composite material, the hygroscopicity is large during use, and the aging resistance, weather resistance, and wear resistance are weak, resulting in a sharp decline in the mechanical properties of the material, which seriously affects wood. durability of plastic composites. In t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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