Continuous pore rubber-plastic slow-rebound foaming material and preparation method thereof

A foamed material and slow rebound technology, applied in the field of rubber foam material processing, can solve the problems of poor impact resistance, high energy consumption, low production efficiency, etc., and achieve good temperature resistance, simple process and energy saving. Effect

Active Publication Date: 2019-02-01
湖南广裕新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems raised in the above-mentioned background technology and overcome the poor impact resistance of existing rubber foam materials and the large energy consumption generated by the preparation of distributed vulcanization, resulting in low production efficiency, the present invention provides a continuous pore Rubber and plastic slow rebound foaming material, including main material, resin, filler, plasticizer, lubricant, vulcanizing agent, vulcanization activator, accelerator and foaming agent; the main material is 50 parts of nitrile rubber 70 parts; the resin is 30 to 50 parts of PVC resin; the filler includes 0 to 30 parts of carbon black, 40 to 80 parts of t

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A continuous cell rubber and plastic slow rebound foaming material, including main material, resin, filler, plasticizer, lubricant, vulcanizing agent, vulcanization activator, accelerator and foaming agent; said main material is nitrile 60 parts of rubber; the resin is 40 parts of PVC resin; the filler includes 15 parts of carbon black, 60 parts of talcum powder and 70 parts of activated aluminum hydroxide; the plasticizer includes 20 parts of dioctyl phthalate and 30 parts of chlorinated paraffin; the lubricant is 1 part of stearic acid, 1 part of paraffin, 1 part of polyethylene glycol and 2 parts of sulfur; 1 part of thiuram, 0.8 parts of zinc diethyldithiocarbamate and zinc di-n-butyldithiocarbamate; the vulcanization active agent is 2 parts of stearic acid and 6 parts of zinc oxide; the foaming Agents include 15 parts of stearic acid and 6 parts of low-temperature composite blowing agent ACP-J. It also includes 0.7 parts of 2,2,4-trimethyl-1,2-dihydroquinoline pol...

Embodiment 2

[0030] The preparation method of the continuous pore slow rebound foaming material is carried out according to the following steps:

[0031] a, batching: get the raw material parts described in embodiment 1 and weigh.

[0032] b. One-stage mixing: The mixing process determines whether the subsequent rubber will have performance defects such as uneven dispersion, excessively high or low plasticity, scorch, and blooming. Precise control: first add the main material and resin, mix at a pressure of 0.5MPa and a temperature of 110°C for 1.5min, then add lubricant, filler and half of the plasticizer in sequence, and knead for 10min to the stated temperature Glue removal to make a rubber compound; before adding the other half of the plasticizer, add the anti-aging agent and stabilizer according to the weight ratio, so that the rebound effect of the subsequent finished product is enhanced.

[0033] c, sheet cooling: the rubber produced in step b, the temperature of the rolls of the m...

Embodiment 3

[0041] The preparation method of the continuous pore slow rebound foaming material is carried out according to the following steps: add 40 parts of PVC resin, adjust the active aluminum hydroxide to 55 parts, adjust the stabilizer to also include 1 part of zinc stearate, barium stearate 1 part, and add the ingredients to the cold rubber strip for mixing, adjust the pressure of the second-stage mixing to be 0.6MPa, and the temperature is 75°C, and the rest of the steps are the same as in Example 2.

[0042] Finally, a rubber-plastic slow-recovery foam material with continuous pores is obtained, and its technical performance indicators are shown in Table 1.

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PUM

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Abstract

The invention discloses a continuous pore rubber-plastic slow-rebound foaming material. The continuous pore rubber-plastic slow-rebound foaming material comprises a main material, resin, a filler, a plasticizer, a lubricant, sulfur, a vulcanizing agent, a vulcanization active agent, an accelerator and a foaming agent; the main material is 50 parts to 70 parts of nitrile rubber; the resin is 30 parts to 50 parts of PVC resin; the filler comprises 0 to 30 parts of carbon black, 40 parts to 80 parts of powdered steatile and 60 parts to 70 parts of active aluminum hydroxide; the plasticizer comprises 10 parts to 30 parts of dioctyl phthalate and 10 parts to 50 parts of chlorinated paraffin; the lubricant comprises 1 part to 2 parts of stearic acid, 1 part to 2 parts of paraffin, 1 part to 2 parts of polyethylene glycol, and 1.5 parts to 2.5 parts of sulfur; the accelerator includes 1 to 3 parts of mercaptobenzothiazole, 0 to 1.5 parts of dipentylene thiuram tetrasulfide, 0.2 parts to 1.5 parts of zinc diethyldithiocarbamate and zinc dibutyl dithiocaarbamate; the vulcanization active agent includes 1 part to 3 parts of stearic acid and 1 part to 10 parts of zinc oxide; and the foaming agent includes 5 part to 25 parts of stearic acid and 1 parts to 10 parts of low-temperature complex foaming agent ACP-J. The steps and the finished product have characteristics of high quality, good process quality control, high production efficiency, and low energy consumption.

Description

technical field [0001] The invention relates to a foam material, in particular to a continuous-pore rubber-plastic slow-rebound foam material and a preparation method thereof, belonging to the technical field of rubber foam material processing. Background technique [0002] Polymer foamed material refers to a microporous material based on polymer (plastic, rubber, elastomer or natural polymer material) with numerous bubbles inside. It can also be regarded as a composite material filled with gas. Polymer There are many types of foam materials. Typical foaming materials such as polyurethane (PU) foam, polystyrene (PS) foam. Polyolefin foam, polyvinyl chloride (PVC) foam, phenolic foam, epoxy resin foam and other thermoplastic and thermosetting foam plastics, nitrile rubber foam, thermoplastic elastomer foam and foaming starch, foaming plant fiber and other natural polymer hair bubble material. In the preparation process, higher index and density will lead to higher closed c...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L27/06C08L91/06C08L71/02C08K13/02C08K3/22C08K3/04C08K3/34C08K5/12C08K5/09C08J9/10
CPCC08J9/0023C08J9/0061C08J9/0066C08J9/0095C08J9/103C08J2491/06C08J2427/06C08J2471/02C08J2201/02C08J2309/02C08J2205/05
Inventor 陆俊
Owner 湖南广裕新材料科技有限公司
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