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High-strength polyolefin foaming material as well as preparation method and application thereof

A polyolefin foaming, high-strength technology, applied in the field of foaming materials, can solve problems such as damage, failure to meet the national standards for tensile and torsion, and achieve the effects of high safety and environmental performance, improved mechanical strength, and no increase in process flow.

Inactive Publication Date: 2019-02-22
MEITOKU PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since foam floor mats are mainly used for infants and young children, when the mechanical properties are not up to standard, infants may produce "small parts" when pulling and biting the floor mats, which may be swallowed by mistake and cause injury
At present, the products in the domestic foam floor mat industry basically do not meet the national standard for tension and torque of 70N (Newton).

Method used

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  • High-strength polyolefin foaming material as well as preparation method and application thereof
  • High-strength polyolefin foaming material as well as preparation method and application thereof
  • High-strength polyolefin foaming material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high-strength polyolefin foam material, including the following preparation raw materials by weight: LDPE (melt index is 2.3g / 10min) 3kg; Azodicarbonamide (AC) 265g, di-tert-butylperoxyisopropyl Benzene (BIPB) 31g, stearic acid 20g, zinc oxide 25g, triallyl isocyanurate 10g, gypsum whiskers replacing 20% ​​filler is 0.4kg, talcum powder 1.6kg. Among them, LDPE specifically chooses Yangzi BASF 2426H.

[0033] Its preparation method is as follows: Prepare the required raw materials as needed, put them in a closed rubber mixer for mixing and plasticizing treatment, wherein the temperature in the closed rubber mixer is 135°C and plasticize for 15 minutes and discharge; The material discharged from the machine is sent to the open mill for open refining and thinning for 15 minutes; after cooling, it is cut into slices and foamed in a press at 175°C to obtain the required high-strength polyolefin foam material.

Embodiment 2- Embodiment 4

[0035] Remove gypsum whiskers and replace the mass percent of talcum powder filler, the types and amounts of other preparation raw materials and the preparation method are all the same as in Example 1; The specific mass percentages are 40%, 60%, and 100% in sequence.

Embodiment 5

[0041] A high-strength polyolefin foam material, including the following preparation raw materials by weight: LLDPE (melt index is 1.3g / 10min) 3kg; Azodicarbonamide (AC) 330g, di-tert-butylperoxyisopropyl Benzene (BIPB) 25g, stearic acid 30g, zinc oxide 40g, gypsum whiskers 1.5kg; triallyl isocyanurate 10g. Among them, LLDPE specifically selects Relene from Reliance Industries Limited. The preparation method is the same as in Example 1.

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Abstract

The invention discloses a high-strength polyolefin foaming material as well as a preparation method and application thereof. The high-strength foaming material is prepared by partially or totally replacing a filler with a fibrous or flake reinforced material, and the mechanical strength of the whole foam mat is improved by utilizing one-dimensional strength of a fiber material or two-dimensional strength of a sheet material, so that the foam mat meets the tension-torque national standard. The tension-torque test of the prepared finished product far exceeds the national toy standard (70N), thehardness of the foam mat is almost the same as that of an ordinary foam mat when the tension-torque, tensile strength and rebound resilience are improved, and the service performance is not changed; the preparation material does not contain formaldehyde, a plasticizer and any other harmful substance, the problem that dioxin is produced from chlorides is solved, and the safety and environmental performance are high; the preparation method can be directly applied to an original production line, the technological process is not increased, and the method is suitable for industrial production; andthe production and improvement cost is reduced.

Description

technical field [0001] The invention relates to the field of foaming materials, in particular to a high-strength polyolefin foaming material and its preparation method and application. Background technique [0002] Foaming material refers to the foaming material that gasifies and generates bubbles inside the material to make it a porous material. It has the advantages of light weight, high specific strength, excellent insulation performance, significant cushioning capacity and strong adsorption capacity, and has been widely used. In the automotive industry, construction industry, packaging industry, agriculture, water treatment and air filtration and other fields; such as the manufacture of foam plastics, foam rubber, foam resin, etc. [0003] "Reinforcement" is a common technology for polymer-based composite materials, with polymer as the matrix and fibrous reinforcement as the reinforcing agent. "Reinforcement" greatly improves the strength and other mechanical properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/22C08K7/08C08K3/34C08K5/09C08K7/10C08K7/14C08K3/24C08K7/00C08J9/10
CPCC08J9/0023C08J9/0066C08J9/0085C08J9/0095C08J9/103C08J2203/04C08J2323/06C08J2323/08C08K3/24C08K3/34C08K5/09C08K7/00C08K7/08C08K7/10C08K7/14C08K2003/2296
Inventor 潘炜
Owner MEITOKU PLASTIC
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