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Odorless PE foam material and preparation method thereof

A foaming material and foaming agent technology, applied in the field of odorless PE foaming material and its manufacturing, can solve the problem of excessive decomposition of ammonia gas content, etc., and achieve the effect of uniform material, convenient processing, and increased fluidity

Inactive Publication Date: 2017-08-18
SANSD JIANGSU ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The present invention provides an odorless PE foam material and its manufacturing method, which can solve the odor problems such as excessive ammonia gas content caused by incomplete decomposition in existing foam materials

Method used

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  • Odorless PE foam material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] 2. Preparation of modified foaming agent

[0032] 2.1 Modified foaming agent: 85 parts by weight of azodicarbonamide, 7 parts of urea and 8 parts of cyanuric cyanurate are uniformly mixed to obtain a modified foaming agent.

[0033] 3. Sample manufacturing method

[0034] 3.1 Mixing: Add LDPE, filler, foaming aid and lubricant to the internal mixer and mix once under the condition of lower than 110°C. After mixing evenly, add the modified foaming agent prepared in 2.1 above, odorless Combined agent, mixing, the cooling water temperature in the internal mixer is 80±5°C, the compressed air pressure is 0.8±0.1MPa, and the material is discharged when the material temperature is 110±5°C;

[0035] Start practice: send the material discharged from the internal mixer into the open mixer to start the refinement, the temperature of the front roll is 90±5°C, the temperature of the rear roll is 75±5°C, the distance between the rolls is 0.5±0.2mm, and the retraining is performed 3 ...

Embodiment 1

[0042] Example 1: According to the components specified in Table 1, a PE foam material was manufactured by the manufacturing method in 3.1.

Embodiment 2

[0043] Example 2: According to the components specified in Table 1, a PE foam material was manufactured by the manufacturing method in 3.1.

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Abstract

The invention discloses an odorless PE foam material and a preparation method thereof. The odorless PE foam material is mainly prepared from raw materials in parts by weight as follows: 50-100 parts of LDPE, 10-40 parts of a filling agent, 1-10 parts of a modified foaming agent, 0.1-5 parts of an auxiliary foaming agent, 0.1-10 parts of a lubricant and 0.5-1 part of an odorless crosslinking agent. The preparation method of the odorless PE foam material comprises steps as follows: material mixing, open-milling, slice discharging, curing and foaming as well as cooling and forming. The modified foaming agent is added to the PE foam material, the content of ammonia gas is smaller than 30 ppm, and compared with a traditional PE foam material, the odorless PE foam material is odorless, environment-friendly and non-toxic.

Description

technical field [0001] The invention relates to PE materials, in particular to an odorless PE foam material and a manufacturing method thereof. Background technique [0002] Foaming material refers to the foaming material that can gasify and generate bubbles inside the material to make it a porous material, such as making foamed plastics, foamed rubber, foamed resin, and the like. Now the most commonly used foaming material is AC foaming agent, that is, azodicarbonamide, because AC foaming agent has the advantages of large gas generation, cheap price, and good dispersibility, but the thermal decomposition temperature range of AC foaming agent is narrow, and the decomposition Strong suddenness, easy to cause bubbles, and N produced during decomposition 2 , CO, CO 2 , NH 3 , remains in the foaming material, especially the ammonia gas in the material has a strong smell and is poisonous and harmful, which has a great impact on human health and is harmful to the ecological env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/02C08K3/34C08K3/26C08K5/09C08K5/098C08K3/22C08K5/14C08J9/10
CPCC08L23/06C08J9/103C08J2203/04C08J2323/06C08J2423/06C08K3/26C08K3/34C08K5/09C08K5/098C08K13/02C08K2003/2296C08K2003/265C08L2203/14C08L2205/025C08L2207/066C08K3/346C08K5/14C08K3/22
Inventor 丁华雄陈渠鍫吴天平
Owner SANSD JIANGSU ENVIRONMENTAL PROTECTION TECH
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