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A kind of highly hydrolysis-resistant low-pressure variable TPU film and preparation method thereof

A technology of hydrolysis resistance and low pressure change, applied in the field of polymer composite materials, can solve the problems of low tear strength and fracture of foam materials, and achieve the effect of high hardness

Active Publication Date: 2021-08-17
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many reports on the research on NBR / PVC foam materials, such as CN 106117913A discloses a kind of nano-ceramic reinforced high-precision PVC-NBR composite foam board and its preparation method, CN 106280094A discloses a nano-silicon carbide reinforced High-impact PVC-NBR composite foam board and its preparation method, the two use nano-ceramics and nano-silicon carbide to strengthen the PVC-NBR composite foam board, but the strength of the obtained foam material (especially tear Strength) is low, there is a risk of fracture in the application

Method used

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  • A kind of highly hydrolysis-resistant low-pressure variable TPU film and preparation method thereof
  • A kind of highly hydrolysis-resistant low-pressure variable TPU film and preparation method thereof
  • A kind of highly hydrolysis-resistant low-pressure variable TPU film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A composite foaming material, comprising the following raw material components in parts by mass:

[0046]

[0047]

[0048] The preparation method of above-mentioned composite foam material is as follows:

[0049] (1) According to the formula, add other components except foaming agent, sulfur and accelerator into the banbury mixer for banburying. The banburying time is 10 minutes, and the degumming temperature is 150°C to obtain the mixed rubber;

[0050] (2) Put the mixed rubber obtained in step (1) for 12 hours, then put it into the open mill together with foaming agent, sulfur and accelerator, knead at 50°C for 30 minutes, pass through three times and then release the mixture to obtain the mixed rubber. Rubber sheet;

[0051] (3) Put the mixed rubber sheet obtained in step (2) into a mold, put it into a flat vulcanizer, and vulcanize it for 5 minutes under the conditions of a pressure of 7 MPa and a temperature of 180° C., and obtain the above-mentioned compos...

Embodiment 2

[0053] A composite foaming material, comprising the following raw material components in parts by mass:

[0054]

[0055] The preparation method of above-mentioned composite foam material is as follows:

[0056] (1) According to the formula, add other components except foaming agent, sulfur and accelerator into the internal mixer for banburying. The banburying time is 20min, and the debinding temperature is 140°C to obtain the mixed rubber;

[0057] (2) Put the mixed rubber obtained in step (1) for 24 hours, then put it into the open mill together with foaming agent, sulfur and accelerator, knead it at 60°C for 20 minutes, pass through it three times and then release it to obtain the mixed rubber. Rubber sheet;

[0058] (3) Put the mixed rubber sheet obtained in step (2) into a mold, put it into a flat vulcanizer, vulcanize for 10 minutes under the conditions of a pressure of 10 MPa and a temperature of 170° C., and obtain the above-mentioned composite foam material after ...

Embodiment 3

[0060] A composite foaming material, comprising the following raw material components in parts by mass:

[0061]

[0062] The preparation method of above-mentioned composite foam material is as follows:

[0063] (1) According to the formula, add other components except foaming agent, sulfur and accelerator into the banbury mixer for banburying. The banburying time is 15min, and the degumming temperature is 145°C to obtain the mixed rubber;

[0064] (2) Put the mixed rubber obtained in step (1) for 15 hours, then add it into the open mill together with foaming agent, sulfur and accelerator, mix it at 55°C for 25 minutes, pass through three times and then release it to obtain the mixed rubber. Rubber sheet;

[0065] (3) Put the mixed rubber sheet obtained in step (2) into a mold, add it to a flat vulcanizer, and vulcanize it for 8 minutes under the conditions of a pressure of 8 MPa and a temperature of 175° C., and obtain the above-mentioned composite foam material after pre...

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Abstract

The invention provides a high hydrolysis-resistant low-voltage variable TPU film and a preparation method thereof. The high hydrolysis-resistant low-pressure change TPU film comprises a composite foaming material, and the composite foaming material includes the following raw material components in parts by mass: 30-50 parts of polyvinyl chloride, 50-70 parts of nitrile rubber, 8-15 parts Nylon fiber, 10‑20 hydroxyapatite, 2‑5 plasticizer, 3‑8 calcium zinc stabilizer, 4‑6 indirect zinc oxide, 1‑1.5 stearic acid, 1‑2 Blowing agent, 2-4 parts of sulfur and 0.5-1.5 parts of accelerator. The composite foam material provided by the invention is light in weight and has high hardness, tensile strength and tear strength, and can be used as a decoration or partition material for buildings, carriages, etc., and the TPU film prepared by it has hydrolysis resistance Advantages of low voltage change.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a high hydrolysis-resistant low-voltage variable TPU film and a preparation method thereof, in particular to a composite foam material and a preparation method thereof, and a high hydrolysis-resistant low-voltage variable TPU film and a preparation method thereof . Background technique [0002] Polyvinyl chloride (PVC) foam board, also known as Chevron board or Andy board, has the advantages of waterproof, flame retardant, acid and alkali resistance, moth resistance, light weight, heat preservation, sound insulation, shock absorption, etc., and is widely used as passenger car, Train carriage ceiling, box core layer, building exterior wall panels, interior decoration panels, building compartments in offices, residences, and public places, commercial decorative frames, ceiling panels, advertising signs and display panels, etc. It is an ideal substit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/02C08L27/06C08L77/00C08K13/02C08K3/32C08K5/12C08K3/22C08K5/09C08K3/06C08J9/10
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/103C08J2203/04C08J2327/06C08J2409/02C08J2427/06C08J2477/00C08K3/06C08K5/09C08K5/12C08K13/02C08K2003/2296C08K2003/325
Inventor 王一良何建雄
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH