Internally-enhanced lightweight composite plate and production method thereof

A composite material and wood-plastic composite material technology, which is applied to the field of internally reinforced lightweight composite material boards and their preparation, can solve the problems of shortening the service life, limiting the scope of use, affecting the use effect, etc., so as to reduce the emission and save the use of materials. The effect of less quantity and labor

Active Publication Date: 2017-03-08
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But there are also some obvious deficiencies, such as low strength, poor bearing capacity, and long-term use may cause bending, warping, etc., which affects its use effect, shortens its service life, and limits its use range.

Method used

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  • Internally-enhanced lightweight composite plate and production method thereof
  • Internally-enhanced lightweight composite plate and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: A kind of preparation method of internal reinforcement lightweight composite material plate, its preparation process is:

[0042] (1) Put 100 parts by mass of plastic particles (the mass content of high-density polyethylene is 85%) on the roller of the calender preheated to 160 ° C until it is completely melted, then add 50 parts by mass of three Ethylene-propylene rubber (the mass content of propylene is 48%), after kneading with the plastic melt for 25 minutes, remove the mixture, cool to room temperature, and crush it into modified plastic particles with a particle size of less than 5 mm;

[0043] (2) Prepare the forming mold of the inner reinforcing layer of the hollow glass fiber reinforced plastics, apply a release agent, and set aside;

[0044] (3) take by weighing the unsaturated polyester resin of 100 mass parts, the nylon cloth of 10 mass parts (unit weight is 220g / m 2 ), 30 parts by mass of glass fiber cloth (unit weight is 400g / m 2 ), 1 mass pa...

Embodiment 2

[0050] Embodiment 2: A kind of preparation method of internal reinforcement lightweight composite material plate, its preparation process is:

[0051] (1) Put 100 parts by mass of plastic particles (the mass content of high-density polyethylene is 75%) on the roller of the calender preheated to 150 ° C until it is completely melted, then add 40 parts by mass of three Ethylene-propylene rubber (the mass content of propylene is 43%), after kneading with the plastic melt for 20 minutes, remove the mixture, cool to room temperature, and crush it into modified plastic particles with a particle size of less than 5mm;

[0052] (2) Prepare the forming mold of the inner reinforcing layer of the hollow glass fiber reinforced plastics, apply a release agent, and set aside;

[0053] (3) take by weighing the unsaturated polyester resin of 100 mass parts, the nylon cloth of 5 mass parts (unit weight is 180g / m 2 ), 20 parts by mass of glass fiber cloth (unit weight is 300g / m 2 ), 0.8 parts...

Embodiment 3

[0059] Example 3: A method for preparing an internally reinforced lightweight composite material plate, the preparation process of which is:

[0060] (1) Put 100 parts by mass of plastic particles (the mass content of high-density polyethylene is 95%) on the roller of the calender preheated to 170 ° C until it is completely melted, then add 60 parts by mass of three Ethylene-propylene rubber (the mass content of propylene is 53%), after kneading with the plastic melt for 30 minutes, remove the mixture, cool to room temperature, and crush it into modified plastic particles with a particle size of less than 5 mm;

[0061] (2) Prepare the forming mold of the inner reinforcing layer of the hollow glass fiber reinforced plastics, apply a release agent, and set aside;

[0062] (3) take by weighing the unsaturated polyester resin of 100 mass parts, the nylon cloth of 15 mass parts (unit weight is 260g / m 2 ), 40 parts by mass of glass fiber cloth (unit weight is 500g / m 2 ), 1.2 part...

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Abstract

The invention relates to an internally-enhanced lightweight composite plate and a production method thereof; the internally-enhanced lightweight composite plate is composed of a micro-foamed plastic-wood composite layer and a hollow fiber-reinforced plastic internal enhancement layer; the micro-foamed plastic-wood layer is made by mixing modified plastic particles, wood powder, chitosan, chlorinated polyethylene, stearic acid, azodicarbonamide, baking soda and citric acid, and calendering. The hollow fiber-reinforced plastic internal enhancement layer is formed of hollow pillar tubes and connection plates arranged among the hollow pillar tubes, and the hollow pillar tubes are provided with a hollow tube in the center and V-shaped grooves in the outer surface. The internally-enhanced lightweight composite plate is reasonable in design, simple in structure, unique in shape, and convenient to produce and manufacture, and can be produced and processed just by using traditional fiber-reinforced plastic hand lay-up and plastic mixing as well as die pressing process, the production process is highly mechanized, less labor is reduced, and the internally-enhanced lightweight composite plate is low in production cost, good in strength, high in modulus, high in rigidity and creep-resistant, rarely deforms and bends during usage, and is higher in bearing capacity; the internally-enhanced lightweight composite plate is suitable for the manufacture of products, such as trays, packaging boxes, floor plates, shelving boards, car sheds, roofs, and building forms.

Description

technical field [0001] The invention relates to a composite material, in particular to an internally reinforced lightweight composite material plate and a preparation method thereof. It is suitable for making packaging products such as pallets and packing boxes, storage products such as planks and shelf boards, and building materials such as carports, roofs, and building templates. Background technique [0002] In recent years, with the enhancement of people's awareness of environmental protection, wood-plastic composite materials with a wide range of raw materials, environmentally friendly, renewable and recyclable materials have attracted more and more attention. It is a composite material with a wide range of uses, which is made of waste plastics, wood powder, etc. as the main raw materials, supplemented with a small amount of other additives, and processed by extrusion, molding and other processes. It has similar processing properties to wood, can be sawed, nailed, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/16C08L97/02C08L67/06C08K13/04C08K7/00C08K7/14C08K5/09C08K5/092C08J9/10B29C70/34
CPCB29C70/34C08J9/103C08J2203/04C08J2323/06C08J2423/06C08L23/06C08L2203/14C08L2205/025C08L2205/035C08L2205/16C08L2207/062C08L2207/066C08L23/16C08L97/02C08L67/06C08K13/04C08K7/00C08K7/14C08K5/09C08K5/092
Inventor 雷文包玉衡李虹昆李梦倩杨子春
Owner NANJING FORESTRY UNIV
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