Thermoplastic polyurethane buffer material and preparation method thereof

A thermoplastic polyurethane and buffer material technology, applied in the field of optical buffer materials, can solve problems such as screen damage and unfavorable display screen protection, and achieve the effects of improving loss modulus, not easy to break the screen, and high loss modulus

Active Publication Date: 2021-12-10
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional flexible and foldable screen cover is bonded to the screen by optical glue. When the display falls, the cover can only absorb a small amount of energy, and most of the gravitational potential energy is transmitted to the screen through the cover, which is not conducive to the protection of the display screen. protection, resulting in damage to the screen

Method used

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  • Thermoplastic polyurethane buffer material and preparation method thereof
  • Thermoplastic polyurethane buffer material and preparation method thereof
  • Thermoplastic polyurethane buffer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 A thermoplastic polyurethane cushioning material is shown, the cushioning material is a network penetrating structure, the main frame is thermoplastic polyurethane elastomer, accounting for 90% of the mass fraction of the entire interpenetrating network structure, and the thermoplastic polyurethane elastomer runs through PMMA between molecules, accounting for 10% of the quality score of the entire interpenetrating network structure. The thermoplastic polyurethane elastomer is a polyester material, the soft segment is polyester polyol, and the hard segment is embedded with isocyanate and chain extender.

[0031] The thermoplastic polyurethane elastomer described in this embodiment is polymerized by the following components by weight:

[0032] 20-40 parts of polyester polyol (PCL-2080), 20-30 parts of isocyanate (diphenylmethane diisocyanate), 3-6 parts of chain extender (1,4-butanediol), hydrolysis stabilizer (carbonized Diimine) 5-10 parts, organic so...

Embodiment 2

[0038] Such as figure 1 A thermoplastic polyurethane cushioning material is shown, the cushioning material is a network penetrating structure, the main frame is thermoplastic polyurethane elastomer, accounting for 95% of the mass fraction of the entire interpenetrating network structure, and the thermoplastic polyurethane elastomer runs through PMMA between molecules, accounting for 5% of the quality score of the entire interpenetrating network structure. The thermoplastic polyurethane elastomer is a polyester material, the soft segment is polyester polyol, and the hard segment is embedded with isocyanate and chain extender.

[0039] The thermoplastic polyurethane elastomer described in this embodiment is polymerized by the following components by weight:

[0040] 20-40 parts of polyester polyol (PCL-2080), 20-30 parts of isocyanate (diphenylmethane diisocyanate), 3-6 parts of chain extender (1,4-butanediol), hydrolysis stabilizer (carbonized Diimine) 5-10 parts, organic sol...

Embodiment 3

[0046] Such as figure 1 A thermoplastic polyurethane cushioning material is shown, the cushioning material is a network penetrating structure, the main frame is thermoplastic polyurethane elastomer, accounting for 97% of the mass fraction of the entire interpenetrating network structure, and the thermoplastic polyurethane elastomer molecules penetrate PMMA, accounting for 3% of the quality score of the entire interpenetrating network structure. The thermoplastic polyurethane elastomer is a polyester material, the soft segment is polyester polyol, and the hard segment is embedded with isocyanate and chain extender.

[0047] The thermoplastic polyurethane elastomer described in this embodiment is polymerized by the following components by weight:

[0048] 20-40 parts of polyester polyol (PCL-2080), 20-30 parts of isocyanate (diphenylmethane diisocyanate), 3-6 parts of chain extender (1,4-butanediol), hydrolysis stabilizer (carbonized Diimine) 5-10 parts, organic solvent (dimet...

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Abstract

The invention discloses a thermoplastic polyurethane buffer material and a preparation method thereof. The buffer material is of a network penetrating structure, the main framework is a thermoplastic polyurethane elastomer, PMMA (poly(meth)acrylate) penetrates through molecules of the thermoplastic polyurethane elastomer, the thermoplastic polyurethane elastomer is a polyester type material, the soft segment is polyester polyol, and the hard segment is embedded by isocyanate and a chain extender. The PMMA is doped in the thermoplastic polyurethane resin to form a network penetrating structure, so the loss modulus of the buffer material is improved, when the buffer material is stressed in a falling mode, the PMMA can rapidly absorb potential energy generated in the falling process of a heavy object, the remaining potential energy is absorbed by thermoplastic elastomer (TPU), and the whole material can well play a role in energy absorption.

Description

technical field [0001] The invention belongs to the technical field of optical buffer materials, and more specifically relates to a thermoplastic polyurethane buffer material and a preparation method thereof. Background technique [0002] With the continuous upgrading of display screens, flexible and foldable display screens are increasingly favored by the market. Flexible and foldable screens are relatively soft because the screen cover is relatively soft, and it is easy to damage the screen under the cover when it is dropped. The traditional flexible and foldable screen cover is bonded to the screen by optical glue. When the display falls, the cover can only absorb a small amount of energy, and most of the gravitational potential energy is transmitted to the screen through the cover, which is not conducive to the protection of the display screen. protection, resulting in damage to the screen. Contents of the invention [0003] The purpose of the present invention is to...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C08L75/06C08L33/12C08J5/18
CPCC08L75/06C08J5/18C08L2207/04C08L2205/04C08J2375/06C08J2433/12C08L33/12
Inventor金闯刘小磊华佳明
OwnerSUZHOU SIDIKE NEW MATERIALS SCI & TECH