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Modified resin for composite material base plate and preparation method thereof

A modified resin and composite material technology, which is applied in the field of polyethylene materials, can solve the problems of poor dimensional and shape stability, easy cracking of materials, large deformation, etc., and achieve improved comprehensive mechanical properties, improved performance, and good dimensional and shape stability Effect

Pending Publication Date: 2020-11-03
SHENGLI OIL FIELD XINDA PIPE IND TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a modified resin for a composite backing plate and its preparation method, which is used to solve the deformation of the polyethylene composite backing plate in the prior art after molding Problems such as large quantity, poor size and shape stability, and easy cracking of materials

Method used

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  • Modified resin for composite material base plate and preparation method thereof
  • Modified resin for composite material base plate and preparation method thereof

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preparation example Construction

[0048] The second aspect of the present invention provides a method for preparing the modified resin for composite backing plate as described above, which includes the following steps: firstly, after the filler is treated with a coupling agent, it is added to a high-speed dispersion mixer together with other raw materials, heated and stirred After uniform mixing, drying treatment is carried out, and the dried raw materials are melted, plasticized, extruded and granulated by a twin-screw extruder to obtain the finished modified resin.

[0049] Among them, the stirring time is 5-10 minutes, the heating temperature is 50-70° C.; the drying temperature is 60-80° C., and the drying time is 0.5-1 hour; the granulation temperature is 90-265° C.

[0050] Specifically, the filler is treated as follows: after diluting the coupling agent with a solvent, adding the filler, stirring for 5-15 minutes, drying, and pulverizing into a powder with a particle size of 2000-10000 mesh.

[0051] Wh...

Embodiment 1

[0055] A modified resin formula for a composite pad, comprising the following raw materials in parts by weight: 50 parts of high-density polyethylene, 5 parts of ultra-high molecular weight polyethylene, 10 parts of linear low-density polyethylene, 0.1 part of antioxidant BASF Irganox 1010 , light stabilizer BASF CHIMASSORB 944 0.1 part, flow aid polyethylene wax 0.5 part, release agent oleic acid amide 0.2 part, lubricant calcium stearate 0.1 part, silicon dioxide 3 parts, carbon fiber 1 part, silanes Joint agent 0.018 part.

[0056] The preparation method of the modified resin for the above-mentioned composite backing plate is:

[0057] (1) Take the coupling agent and dilute it with absolute ethanol at a rate of 10:1 (volume ratio), pour the weighed filler into the diluted coupling agent solution, stir for 5 minutes, and then put it into the drying equipment, Dry at 90°C for 5 hours, take it out, grind it into a powder with a particle size of 2000 mesh, and place it in a cl...

Embodiment 2

[0060] A modified resin formula for a composite pad, comprising the following raw materials in parts by weight: 80 parts of high-density polyethylene, 20 parts of ultra-high molecular weight polyethylene, 2 parts of linear low-density polyethylene, antioxidant BASF AT-10 1 1 part, light stabilizer BASF CHIMASSORB 944 1 part, flow aid polyethylene wax 1 part, release agent oleic acid amide 1 part, lubricant calcium stearate 1 part, aluminum oxide 3 parts, titanium dioxide 2.5 parts, carbon fiber 0.5 parts, 0.1 parts of coupling agent.

[0061] The preparation method of the modified resin for the above-mentioned composite backing plate is:

[0062] (1) Take the coupling agent and dilute it with absolute ethanol at a ratio of 12:1 (volume ratio), pour the weighed filler into the diluted coupling agent solution, stir for 10 minutes, and then put it into the drying equipment, Dry at 80°C for 6 hours, take it out, grind it into a powder with a particle size of 5000 mesh, and place ...

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Abstract

The invention belongs to the technical field of polyethylene materials, and particularly discloses modified resin for a composite material base plate and a preparation method thereof. The modified resin is prepared from the following raw materials in parts by weight: 50 to 80 parts of high-density polyethylene, 5 to 20 parts of ultrahigh molecular weight polyethylene, 2 to 10 parts of linear low-density polyethylene, 0.1 to 1 part of antioxidant, 0.1 to 1 part of light stabilizer, 0.5 to 3 parts of flow aid, 0.2 to 2 parts of release agent, 0.1 to 1 part of lubricant, 3 to 10 parts of filler and 0.018 to 0.12 part of coupling agent. The filler is modified with the coupling agent, then the filler is blended with the high-density polyethylene, the ultra-high molecular weight polyethylene andthe linear low-density polyethylene, and the formula and the processing technological conditions are reasonably controlled, so that the comprehensive mechanical property of the modified resin is improved, and the prepared composite material base plate is good in size and shape stability and good in mechanical property. In addition, the overload capacity, the environmental stress cracking resistance, the impact strength, the tearing strength and the like are effectively improved.

Description

technical field [0001] The invention relates to the technical field of polyethylene materials, in particular to a modified resin for a composite pad and a preparation method thereof. Background technique [0002] In emergency situations such as disaster relief, military emergency, or rapid repair of roads and airports that have been extensively damaged, it is necessary to use a large number of engineering pads to pave temporary roads to meet the normal traffic of vehicles and normal installation of equipment, while the traditional wooden boards have anti-corrosion properties. Poor, poor impact resistance, low bearing capacity, metal backing plate has problems such as high density, inconvenient handling, easy to corrode, rust, and easy to deform. Composite pads are light in weight and high in load-carrying capacity, and can replace traditional wooden boards and metal pads for rapid road paving. [0003] Composite pads can be prepared in advance according to a certain modulus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K9/06C08K7/06C08K3/36C08K9/04C08K3/22C08K3/30
CPCC08L23/06C08L2207/062C08L2207/068C08L2205/025C08L2205/035C08K2003/2227C08K2003/2241C08K2003/3045C08L23/0815C08K13/06C08K9/06C08K7/06C08K3/36C08K9/04C08K3/22C08K3/30
Inventor 王纲李强陶佳栋王瑞星于海华陈勇强缐芳
Owner SHENGLI OIL FIELD XINDA PIPE IND TECH DEV CO LTD
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