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3D anti-collision buffer material, preparation method thereof and helmet buffer cushion layer

A cushioning material and anti-collision technology, applied in helmets, chemical instruments and methods, helmet caps, etc., can solve the problems of increased helmet weight, insufficient comfort, unfavorable impact force dispersion and transmission, etc., to achieve broad application prospects, compression resistance excellent effect

Pending Publication Date: 2021-04-02
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual life applications, when the foam is under a large impact force, the cushioning effect formed by the foam itself is limited due to the limited rebound distance; in addition, the foam The rigidity of the helmet is generally small, which is not conducive to the dispersion and transmission of the impact force, which makes the impact force excessively concentrated and increases the chance of head injury for the helmet user. Now people often solve this problem by increasing its thickness, but at the same time it brings There are new problems such as increasing the weight of the helmet, causing inconvenience to the user's travel, and insufficient comfort

Method used

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  • 3D anti-collision buffer material, preparation method thereof and helmet buffer cushion layer
  • 3D anti-collision buffer material, preparation method thereof and helmet buffer cushion layer
  • 3D anti-collision buffer material, preparation method thereof and helmet buffer cushion layer

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preparation example Construction

[0027] This embodiment provides a kind of preparation method of 3D anti-collision cushioning material, such as figure 1 As shown, it includes the following steps: S10 mixes the raw material polypropylene resin, olefinic elastomer, heat stabilizer and antioxidant 1010 uniformly in proportion, and then kneads with an internal mixer to obtain modified polypropylene chips. S20 uses the modified polypropylene slices as raw materials, and is processed through feeding→melt extrusion→filtering→melt trickle drawing and cooling→special-shaped collecting device receiving→netting→winding process to produce a plastic film with an array arrangement. Tower type meltblown PP nonwoven substrate4. In S30, at least two layers of the tower-shaped melt-blown PP nonwoven substrate 4 are evenly brushed with adhesive under the action of double rollers and solidified for a period of time to prepare a melt-blown anti-collision buffer material 5 with a three-dimensional structure. The composition of th...

Embodiment 1

[0034] A preparation method for a 3D anti-collision cushioning material, comprising the steps of:

[0035] S10 Mix 55 parts of raw material polypropylene resin, 5 parts of olefinic elastomer, 2 parts of heat stabilizer and 10100.1 parts of antioxidant, and then knead with internal mixer to obtain modified polypropylene chips;

[0036] S20 uses the modified polypropylene slices as raw materials, and is processed through feeding→melt extrusion→filtering→melt trickle drawing and cooling→special-shaped collecting device receiving→netting→winding process to produce a plastic film with an array arrangement. Tower-type melt-blown PP nonwoven substrate; the hot air flow pressure of the suction device is 0.2MPa, the receiving distance is 15cm, and the hot air temperature is 200°C. The web-forming speed is 10m / min, and the thickness of the tower-shaped melt-blown PP nonwoven substrate is 2.4mm.

[0037] In S30, the 12-layer tower-shaped melt-blown PP nonwoven substrate is evenly rolled...

Embodiment 2

[0039] A preparation method for a 3D anti-collision cushioning material, comprising the steps of:

[0040] S10 Mix 65 parts of raw material polypropylene resin, 7 parts of olefinic elastomer, 5 parts of heat stabilizer and 10100.3 parts of antioxidant, and then knead with internal mixer to obtain modified polypropylene chips;

[0041] S20 uses the modified polypropylene slices as raw materials, and is processed through feeding→melt extrusion→filtering→melt trickle drawing and cooling→special-shaped collecting device receiving→netting→winding process to produce a plastic film with an array arrangement. Tower-type melt-blown PP nonwoven substrate; the hot air flow pressure of the suction device is 0.3MPa, the receiving distance is 20cm, and the hot air temperature is 250°C. The web-forming speed is 50 m / min, and the thickness of the tower-shaped melt-blown PP nonwoven substrate is 2.7 mm.

[0042] In S30, the 25-layer tower-shaped melt-blown PP nonwoven substrate is evenly roll...

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Abstract

The invention provides a 3D anti-collision buffer material, a preparation method thereof and a helmet buffer cushion layer, and the preparation method comprises the following steps: S10, uniformly mixing raw materials in proportion, and then mixing by an internal mixer to obtain modified polypropylene slices; S20, taking the modified polypropylene slices as a raw material to prepare a tower-shapedmelt-blown PP non-woven base material with array arrangement; and S30, evenly brushing at least two layers of tower-shaped melt-blown PP non-woven base materials with an adhesive in a rolling mode under the action of double rollers and cured for a period of time, and preparing the melt-blown anti-collision buffer material of a three-dimensional structure. According to the 3D anti-collision buffermaterial, the preparation method of the 3D anti-collision buffer material and the helmet buffer cushion layer, the tower-shaped melt-blown PP non-woven base material obtained through the receiving procedure of the special-shaped collecting device has the tower-shaped concave-convex structure, the anti-collision buffer material formed by compounding the tower-shaped melt-blown PP non-woven base material is provided with the multiple buffer air bags and can be widely applied to the field of safety protection, and wide application prospects are realized.

Description

technical field [0001] The invention relates to the technical field of preparation methods of safety protection materials, in particular to a 3D anti-collision buffer material, a preparation method thereof, and a helmet cushion layer. Background technique [0002] With the rapid development of human society, people pay more and more attention to safety protection awareness. In people's living environment, the quality of the product will be affected and even people's personal safety will be threatened due to the poor shock absorption effect of the material, poor rebound, and lack of good cushioning performance. Therefore, the development of anti-collision and impact-resistant cushioning materials has positive significance for the all-round development of various countries. [0003] At the same time, with the development of non-woven technology and technology, non-woven materials have gradually become the focus of people's development and application because of their low cost...

Claims

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Application Information

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IPC IPC(8): B32B27/02B32B27/12B32B27/32B32B7/12D04H1/4291D01F6/46D01F1/10C09J175/04C09J11/06A42B3/06
CPCB32B27/02B32B27/12B32B27/32B32B7/12D04H1/4291D01F6/46D01F1/10C09J175/04C09J11/06A42B3/06C08K5/05
Inventor 张伟谢单单魏发云王海楼张海峰张瑜
Owner NANTONG UNIVERSITY
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