Environment-friendly dust-free foam and preparation method thereof
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A foam and environmental protection technology, applied in the field of environmental protection and dust-free foam and its preparation, can solve the problems of incision defects, easy dust removal, etc., and achieve the effects of good resilience, high-strength holding power, and high-strength adhesion
Pending Publication Date: 2021-07-09
SHENZHEN HENGXINGJIA TECH CO LTD
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However, most of these commonly used foam products are soft in texture, easy to drop dust during the cutting process, and the incision is prone to defects, which has limitations in electronic products such as mobile phones, digital cameras, video cameras, tablet computers, and mobile communications.
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[0022] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "fixed", "integrated", "left", "right" and si...
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Abstract
The invention discloses environment-friendly dust-free foam and a preparation method thereof. The method comprises the steps that waste foam is smashed into particles, wherein the particles are added into raw materials for manufacturing the foam, and granular polyurethane is added into the raw materials for manufacturing the foam; and then the foam manufacturing raw materials are uniformly stirred and mixed with the waste foam particles and the polyurethane so that the waste foam particles are uniformly fused with the raw materials. The preparation method comprises the following specific preparation steps: S1, preparing foam particles: crushing recycled waste foam into particles; s2, preparing a foam stock solution, namely mixing and stirring raw materials for preparing foam to form the stock solution; s3, preparing a foam foaming agent: uniformly mixing and stirring a foam stock solution and foam particles; s4, foam forming: pouring a foaming agent into the mold, and taking out a finished product after the foaming agent is formed. The foam product disclosed by the invention is halogen-free and accords with an ROHS2.0 environment-friendly material; high rebound resilience, high adhesive force and retention force are achieved, and the waterproof and anti-permeation functions are achieved; and good market application values are realized.
Description
technical field [0001] The invention relates to the technical field of artificial synthetic materials, in particular to an environment-friendly dust-free foam and a preparation method thereof. Background technique [0002] Foam is a material made of foamed plastic particles, referred to as foam. Foam is divided into PU foam, anti-static foam, conductive foam, EPE, anti-static EPE, CR, EVA, bridging PE, SBR, EPDM, etc. At the same time, the foam has a series of characteristics such as elasticity, light weight, fast pressure-sensitive fixation, convenient use, free bending, ultra-thin volume, and reliable performance. Therefore, it is widely used in production and life. However, most of these commonly used foam products are soft in texture, easy to shed dust during cutting, and prone to defects in the incision, which has limitations in electronic products such as mobile phones, digital cameras, video cameras, tablet computers, and mobile communications. [0003] Therefore, ...
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