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In-situ reaction forming device for differential and integral calculus laminated polymer composite material and in-situ reaction forming method

A molding device and in-situ reaction technology, which is applied in the field of advanced manufacturing of polymer materials to achieve the effects of easy and uniform dispersion, low viscosity and saving of raw materials

Active Publication Date: 2012-07-25
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The processing method of the matrix layer and the bonding layer in the calculus laminated polymer composite material remains unchanged, and the raw material of the functional layer uses monomers or oligomers instead of traditional polymers, and uses a vacuum reactor as a plasticizing feeding device. The polymerization temperature can be much lower than the melting processing temperature of high polymer, which solves the problem of calculus lamination and compounding with the substrate layer material with low processing temperature

Method used

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  • In-situ reaction forming device for differential and integral calculus laminated polymer composite material and in-situ reaction forming method
  • In-situ reaction forming device for differential and integral calculus laminated polymer composite material and in-situ reaction forming method
  • In-situ reaction forming device for differential and integral calculus laminated polymer composite material and in-situ reaction forming method

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Embodiment 1

[0022] The present invention is a calculus laminated polymer composite material in-situ reaction molding method. The raw material of the base layer 11 is polyethylene, the raw material of the bonding layer 10 is ethylene-vinyl acetate copolymer, and the raw material monomer of the functional layer 9 is caprolactam. The molecular modifier is at least one of carbon nanotubes, layered silicate, and inorganic nanoparticles, the catalyst is sodium hydroxide, sodium methoxide or sodium ethoxide, and the activator is acid chloride, acid anhydride, isocyanate, N-acylation At least one of lactam compounds. First, add caprolactam and polymer modification additives into the vacuum reactor, turn on the vacuum pump to reduce the pressure and heat to melt, vacuum dehydration at 70~120℃, maintain 10~20min; release the vacuum, add the catalyst and heat to 90~130 under vacuum conditions ℃ for a certain period of time; fill the inert gas nitrogen to balance the pressure in the kettle with the ou...

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Abstract

The invention relates to an in-situ reaction forming device for a differential and integral calculus laminated polymer composite material and an in-situ reaction forming method. The device comprises a plasticizing feeding device, a flow collector, a laminator and a forming device which are sequentially in series connection from front to back. Methods for processing a base layer and an adhesive layer in the differential and integral calculus laminated polymer composite material are unchanged, a functional layer is made of monomer or low polymer and the like which serve as raw materials instead of traditional high polymer, and a vacuum reactor is used as the plasticizing feeding device, so that the problem of difficulty in differential and integral calculus laminated composite of the composite material with base layer materials with low processing temperature is solved. By the aid of in-situ reaction forming technology for the functional layer, corresponding polymer modified auxiliaries can be selected according to different base materials, modifying effects are remarkable, the functional layer is thinner and even far thinner than the base layer, and raw materials are saved. Moreover, negative effects of high time consumption, degradation and the like caused by repeated hot processing are avoided as the functional layer is polymerized at one step.

Description

Technical field [0001] The invention belongs to the field of advanced manufacturing of polymer materials, and more specifically, relates to an in-situ reaction molding device and method for multilayer polymer composite materials. Background technique [0002] The calculus laminated polymer composite material is to extrude a variety of polymer materials through a special laminated module to produce dozens or even thousands of layers of polymer composite materials. The thickness of each layer of the extruded product can be micrometers or even nanometers. Grade, with excellent mechanical properties, barrier properties, electrical conductivity, optical properties, etc., with wide application prospects, it has become a hot research topic in the field of materials. Judging from the current published patents, the traditional multi-layer co-extrusion technology mainly adopts a multi-runner method, with each runner controlling one layer, the structure design is too complicated and the num...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/02
Inventor 杨卫民夏令涛丁玉梅
Owner BEIJING UNIV OF CHEM TECH
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