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Glass fiber reinforced TPU material and preparation method thereof

A glass fiber and long glass fiber technology, which is applied in the field of glass fiber reinforced TPU materials and their preparation, can solve the problems of little research on injection molding characteristics and little in-depth research.

Active Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, domestic research on glass fiber reinforced TPU materials is still in its infancy, and there are not many in-depth studies, especially for antioxidant systems, processing conditions, injection molding There are not many studies on characteristics, etc.

Method used

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  • Glass fiber reinforced TPU material and preparation method thereof
  • Glass fiber reinforced TPU material and preparation method thereof
  • Glass fiber reinforced TPU material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0054] The preparation method of glass fiber reinforced TPU material includes: ① The polyurethane elastomer (Bayer, Germany, Desmopan365, Desmopan 392LE compounded in a weight ratio of 1:1) was dried in a cyclone drying oven at 100 °C for 4 hours. ②Put the dried polyurethane elastomer into the mixing tank, and add antioxidant (Ciba Specialty Chemicals, Irganox 5057 and TH 1135 in a weight ratio of 1:2) and toner (carbon black, U.S. Cabot Company, M570), warpage improving agent (glass fiber powder produced by Nanjing Glass Fiber Research Institute, 400 orders, and Guilin Guiguang Talc Development Co., Ltd. production, 400 order talcum powder, the two are by weight: 1:1 mixed and compounded), light stabilizer (BASF TINUVIN XT 855FF), mixed evenly. ③ Small test to determine the screw speed, feeding screw speed, number of glass fiber strands (Beijing Xingwang Glass Fiber Factory, 1000 type). ④ The screw temperature conditions of 180-190°C, the screw configuration of two sets of s...

Embodiment 2

[0062] From the performance test results of Example 1 and Example 2, it can be seen that whether the glass fiber surface is treated or not has almost no influence on the material performance. The present application has low requirements for glass fiber surface treatment, and untreated glass fiber can achieve the same effect, and the method of the present application can effectively reduce raw material costs.

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Abstract

The invention relates to a glass fiber reinforced TPU material and a preparation method thereof in the field of modified plastics. The glass fiber reinforced TPU material can comprise the following blended components: TPU resin, long glass fiber and a warping improver, the glass fiber reinforced TPU material comprises the following components in parts by weight: 10-30 parts of long glass fiber, 3-10 parts of warping improver and the balance of TPU resin based on 100 parts of total weight of the glass fiber reinforced TPU material. According to the glass fiber reinforced TPU material disclosed by the invention, the rigidity, the tensile property and the tear resistance of the material are greatly improved on the basis of keeping the specific excellent performance of the TPU material. The surface of the product is smooth and flat without fiber exposure. The material can be applied to the fields of automobiles, war industry, spaceflight, sports equipment and the like.

Description

technical field [0001] The invention relates to the field of modified plastics, in particular to a glass fiber reinforced TPU material and a preparation method thereof. Background technique [0002] Polyurethane elastomer (TPU) is a group copolymer elastomer with many classifications, but the main varieties are polyether type and polyester type. The hard segment is composed of isocyanate, and the soft segment is composed of polyol. There is a structure of hard segment and soft segment on the same molecular chain, so that the material has both rigidity and toughness. The structural characteristics and the adjustment of the polymeric components make polyurethane elastomers have the following advantages: high tensile strength and tear strength, wide range of hardness, low compression set, and good processing versatility. [0003] Thermoplastic polyurethane elastomer (TPU) has become one of the important PU materials due to its excellent performance, and has been widely used at...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08K13/06C08K9/06C08K7/14C08K3/34C08K3/04C08K13/04C08K5/098C08J5/08C08J5/04
CPCC08J5/043C08J5/08C08J2375/06C08K13/06C08K9/06C08K7/14C08K3/34C08K3/04C08K13/04C08K5/098
Inventor 丁树岩胡孝义李永泉杨勇孙泉
Owner CHINA PETROLEUM & CHEM CORP
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