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Structured high-elasticity buffer composite resin material and preparation method thereof

A composite resin, high-elasticity technology, applied in the field of polymer material preparation, can solve the problems of limited buffering effect, easy damage, poor protection effect, etc., and achieve the effect of reducing body weight, reducing maintenance costs, and reducing injuries

Active Publication Date: 2020-04-10
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Existing car bumpers have a certain buffering effect on car collisions, but the protection for passengers in cars at high speeds is still insufficient. More than 90% of domestic car bumper materials are PP plastics, which have a certain protective effect against impacts
Although some bumpers can play the role of cushioning protection, their cushioning effect is limited and cannot achieve the expected goal. For some large-scale collisions, the protection effect is poor, and they are easily damaged after impact, and there is no self-repairing and self-healing technology. ability

Method used

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  • Structured high-elasticity buffer composite resin material and preparation method thereof
  • Structured high-elasticity buffer composite resin material and preparation method thereof
  • Structured high-elasticity buffer composite resin material and preparation method thereof

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific examples.

[0025] (1) Preparation of elastic hydrogel materials. This aspect involves the preparation of PDMA hydrogel reinforcement material, first weigh 2.1g ammonium dodecyl sulfate (ADS) and 0.878gNaCl and dissolve in 25mLH at room temperature 2 In O, 0.30 g of stearyl methacrylate (SMA) was added, and placed in a water bath at 35° C. for 3 h with magnetic stirring. Add 4.4 mL of N,N-dimethylacrylamide (DMAAm), and stir for 1-2 h. Then add 0.23g of initiator KPS and 120μL of accelerator TEMED, and stir it evenly. The solution obtained from the reaction was transferred into a glass test tube with a diameter of 13 mm, thermally initiated at 50° C., and polymerized for 12 hours to prepare a PDMA hydrogel reinforcement material.

[0026] (2) Cutting and structural design of the hydrogel. This can be done in accordance with image 3 The shearing and arrangement of the hydrogel struct...

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Abstract

The invention relates to a structured high-elasticity buffer composite resin material and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of a PDMAhydrogel reinforcement material; (2) cutting and structural design of a hydrogel material; (3) modification treatment of an epoxy resin material; and (4) composite treatment of a cut hydrogel structure and an epoxy resin system. By means of high elasticity of the hydrogel material and through structural cutting and designing of the hydrogel material and compounding of the hydrogel material with modified epoxy resin, the prepared modified epoxy resin-based composite material combines the advantages of the hydrogel material and the epoxy resin material, and has not only high elasticity and self-repairing performance but also high strength and related mechanical properties. The structured high-elasticity buffer composite resin material can be applied to fields with great demands for elastic performance, such as automobile bumpers.

Description

technical field [0001] The invention relates to the field of polymer material preparation, in particular to a structured high-elastic buffer composite resin material and a preparation method thereof. Background technique [0002] Elastic cushioning material is one of the indispensable materials in aerospace, automobile industry, electronics industry and instrumentation. The demand for shock absorption and buffering of bumpers in the automotive industry is particularly important. Existing car bumpers have a certain buffering effect on car collisions, but the protection for passengers in the car is still insufficient at high speeds. More than 90% of domestic car bumper materials are PP plastics, which have a certain protective effect against impacts. Although some bumpers can play the role of cushioning protection, their cushioning effect is limited and cannot achieve the expected goal. For some large-scale collisions, the protection effect is poor, and they are easily damage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L33/24C08K7/00C08K3/04C08F220/54C08F220/18C08J3/075
CPCC08L63/00C08L33/24C08F220/54C08J3/075C08J2333/24C08K7/00C08K3/04C08K3/40
Inventor 李清华倪瑞安陈一峰吴红艳
Owner NANJING UNIV OF INFORMATION SCI & TECH
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