Transparent fast- forming low-hardness thermoplastic polyurethane elastomer and preparation method thereof

A thermoplastic polyurethane and low-hardness technology, applied in the field of low-hardness thermoplastic polyurethane elastomer and its preparation, can solve problems such as difficulty in obtaining transparency, inability to meet processing requirements, and limit the application of low-hardness products, and achieve low hardness and good formability , good transparency effect
CN110204673AActive Publication Date: 2019-09-06MIRACLL CHEM
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MIRACLL CHEM
Publication Date
2019-09-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the technical field of polyurethane elastomer preparation, and particularly relates to a transparent fast- forming low-hardness thermoplastic polyurethane elastomerand a preparation method thereof. According to the invention, a triptycene derivative with a special structure is adopted as a chain extender, the derivative has H connected with N atom and C connected with O atom in the structure, the structure is helpful for forming hydrogen bonds between molecular chains, is helpful for fast and orderly arrangement of hard segments, and finally the structure enables the product to have better crystallization capability. In addition, due to the large steric hindrance of the triptycene derivative, crystallization is destroyed to a certain extent, and a polyol with lowermolecular weight is used as a soft segment, so that the final product-thermoplastic polyurethane elastomer has lower hardness, better formability and good transparency.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of polyurethane elastomer preparation, and in particular relates to a low-hardness thermoplastic polyurethane elastomer with fast transparent molding and a preparation method thereof. Background technique

[0002] Thermoplastic polyurethane elastomer (TPU) is a kind of polyurethane that can be plasticized by heating and has no or little chemical crosslinking in chemical structure. It has high strength, high modulus, excellent wear resistance and good wear resistance in a wide hardness range. oil resistance. With the development of TPU, more and more industries have higher and higher demands for TPU with a hardness of 60A-75A, and their performance requirements are no longer simply low-end requirements such as low hardness or certain use strength. and the need for greater transparency. From the formulation point of view, due to the low hard segment content of low-hardness products, in order to meet the proc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More