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Environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material and preparation method thereof

A secondary foaming, high flame retardant technology, applied in the field of polymer materials, can solve the problem that CR foam materials cannot achieve flame retardant, and achieve the effects of weight reduction, good comprehensive performance and good material dispersion.

Pending Publication Date: 2021-04-06
YIBAO FUJIAN POLYMER MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of this application solves the technical problem that the CR foam material in the prior art cannot achieve flame retardancy when the thickness is 1 mm by providing an environmentally friendly high flame-retardant CR multi-component blended closed-cell secondary foam material and its preparation method , to realize the preparation of a CR foam material, which can meet the requirements of UL94v0 level at a thickness of 1mm

Method used

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  • Environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material and preparation method thereof
  • Environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material and preparation method thereof
  • Environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material and preparation method thereof

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Effect test

Embodiment 1

[0051] A method for preparing an environment-friendly high flame-retardant CR multi-component blended closed-cell secondary foaming material, comprising the following steps:

[0052] Banbury premixing process:

[0053] Step 1: Pre-mixing in a 75L rhombus-shaft W-type hammer mixer: put 100 parts of POE, 50 parts of neoprene CR40W, and 1.5 parts of stearic acid into the internal mixer, and add Press to 7 kg, knead for 10 minutes, continue to fill with cold water to cool down during the kneading process, and discharge when the temperature reaches 175°C;

[0054] Step 2: Put the pre-mixed POE and CR40W into the open mill, control the temperature at 155°C, turn the material for 180 seconds at 5mm, and cut the thin material with a thickness of 2mm into the corresponding weight. processing;

[0055] Step 3 16-inch open mill calendering and standing still: Put the material after the 18-inch automatic turning open mill in step 2 into the 16-inch open mill again for rolling and thinni...

Embodiment 2

[0077] A method for preparing an environment-friendly high flame-retardant CR multi-component blended closed-cell secondary foaming material, comprising the following steps:

[0078] Banbury premixing process:

[0079] Step 1 75L rhombus leaf shaft W-type heavy hammer internal mixer pre-mixing: according to the proportioning by weight, 100 parts of POE, 50 parts of neoprene CR40W, 2 parts of stearic acid are dropped into the internal mixer, add Press to 7 kg, knead for 10 minutes, continue to fill cold water to cool down during the kneading process, and discharge when the temperature reaches 170°C;

[0080] Step 2: Put the pre-mixed POE and CR40W into the open mill, control the temperature at 150°C, turn the material 5mm for 180 seconds, and cut the thin material with a thickness of 2mm into the corresponding weight. processing.

[0081] Step 3 16-inch open mill calendering and standing still: put the material after the 18-inch automatic turning mill in step 2 into the 16-in...

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Abstract

The invention discloses an environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material and a preparation method thereof. The environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material comprises 100 parts of mixed glue C, 8 parts of a foaming agent and 5 parts of odorless DCP. The mixed glue C is prepared from 100 parts of premixed glue A, 100 parts of premixed glue B, 5 parts of stearic acid, 10 parts of zinc stearate, 20 parts of zinc oxide, 200 parts of flame retardant, 80 parts of carbon black and 150 parts of aluminum hydroxide; wherein the premixed glue A is prepared from 100 parts of POE, 50 parts of CR40W and 2 parts of stearic acid; the premixed rubber B is prepared from 100 parts of CR40W, 50 parts of EVM and 2 parts of stearic acid. The environment-friendly high-flame-retardant CR multi-component blending closed-cell secondary foaming material disclosed by the invention is subjected to a vertical combustion test, and a test result shows that when a sample is 0.8 mm, the sample meets the V-O grade.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an environment-friendly high flame-retardant CR multi-component blended closed-cell secondary foaming material and a preparation method thereof. Background technique [0002] CR foam materials usually have excellent sealing, which can avoid gas release and atomization; they have excellent compression deformation resistance, that is, the elasticity is durable, which can ensure long-term shockproof protection for accessories. It can be customized according to customer requirements. It can be pasted with various imported tapes and has good adhesion. The products are used in communications, computers, household appliances, calculators, electronic toys and various electronic controllers. [0003] In some special fields, it is also required to have excellent flame retardant properties. The physical properties of the existing CR foam materials generally need to be thicker to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L23/08C08K5/09C08K5/098C08K3/22C08K3/04C08K13/02C08J9/04C08J9/00B29B7/00B29C44/02B29C44/34
CPCC08J9/04C08J9/0061C08J9/0095B29C44/02B29C44/3442B29B7/005C08J2311/00C08J2423/08C08K5/09C08K5/098C08K2003/2296C08K2003/2227C08K3/04C08K13/02C08J2205/052
Inventor 侯汝红陈奕汲
Owner YIBAO FUJIAN POLYMER MATERIALS
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