阅读说明：本技术 一种轻质型胶靴靴面混炼胶胶料 (Light rubber boot vamp compound rubber material ) 是由 徐兴华 蒋扬龙 于 2020-05-08 设计创作，主要内容包括：本发明公开了一种轻质型胶靴靴面混炼胶胶料,胶料原料包括天然橡胶、高苯乙烯橡胶、热塑性丁苯橡胶、硫黄、硬脂酸、活性氧化锌、防老剂MB、防老剂264、轻质白炭黑、中空玻璃微珠、酚醛树脂,所述轻质白炭黑的比重为1.2-1.5,所述中空玻璃微珠的比重为0.18-0.21；具有含胶量高,比重轻的特点,且拉伸强度≥14Ma；伸长率≥500％,将该胶料用于特种防护胶靴(如各种工矿靴类),能够使原来每双重量高达2.4Kg-3.4Kg的防护胶靴成功减重到2.2-3.1Kg左右,对于每日行走量、工作量非常大的矿工来说,负重减轻非常明显,且在含胶量高,补强剂用量少的情况下,防护靴的压延收缩小,花纹清晰、靴面挺性好,解决了含胶量高,补强剂等用量少带来的压延收缩大,花纹不清晰、靴面挺性差等问题。(The invention discloses a light rubber boot vamp rubber compound, which comprises the raw materials of natural rubber, high styrene rubber, thermoplastic styrene-butadiene rubber, sulfur, stearic acid, active zinc oxide, an anti-aging agent MB, an anti-aging agent 264, light white carbon black, hollow glass beads and phenolic resin, wherein the specific gravity of the light white carbon black is 1.2-1.5, and the specific gravity of the hollow glass beads is 0.18-0.21; has the characteristics of high glue content and light specific gravity, and the tensile strength is more than or equal to 14 Ma; the elongation is more than or equal to 500 percent, the rubber material is used for special protective rubber boots (such as various industrial and mining boots), the weight of each original protective rubber boot with double weight of 2.4Kg-3.4Kg can be successfully reduced to about 2.2-3.1Kg, the weight reduction is very obvious for miners with large daily walking amount and workload, the rolling shrinkage of the protective boots is reduced, the patterns are clear, the boot surface is good in stiffness under the conditions of high rubber content and low reinforcing agent consumption, and the problems of large rolling shrinkage, unclear patterns, poor boot surface stiffness and the like caused by low consumption of the reinforcing agent, the reinforcing agent and the like are solved.)

1. The light rubber boot vamp compound rubber material is characterized in that: the sizing material comprises the following components in parts by weight: 70-90 parts of natural rubber, 5-10 parts of high styrene rubber, 5-10 parts of thermoplastic styrene-butadiene rubber, 1.5-2.5 parts of sulfur, 1.0-2.0 parts of stearic acid, 2-4 parts of active zinc oxide, 0.8-1.5 parts of an anti-aging agent MB, 0.8-1.5 parts of an anti-aging agent 264, 20-40 parts of light white carbon black, 25-45 parts of hollow glass microspheres, 2-8 parts of phenolic resin, 0.8-1.5 parts of a promoter DM and 0.4-0.8 part of a promoter D, wherein the specific gravity of the light white carbon black is 1.2-1.5, and the specific gravity of the hollow glass microspheres is 0.18-0.21.

2. The light weight rubber boot shoe mix compound of claim 1, characterized by: the sizing material comprises the following components in parts by weight: 75-85 parts of natural rubber, 8-10 parts of high styrene rubber, 8-10 parts of thermoplastic styrene-butadiene rubber, 1.8-2.2 parts of sulfur, 1.3-1.7 parts of stearic acid, 2-3 parts of active zinc oxide, 0.8-1.2 parts of an anti-aging agent MB, 0.8-1.2 parts of an anti-aging agent 264, 20-30 parts of light white carbon black, 25-35 parts of hollow glass microspheres, 4-6 parts of phenolic resin, 0.9-1.2 parts of a promoter DM and 0.5-0.7 part of a promoter D.

3. The light rubber boot vamp compound rubber compound according to claim 2, wherein the rubber compound comprises the following components in parts by weight: 80 parts of natural rubber, 10 parts of high styrene rubber, 10 parts of thermoplastic styrene-butadiene rubber, 2.0 parts of sulfur, 1.5 parts of stearic acid, 2.5 parts of active zinc oxide, 1 part of antioxidant MB, 1 part of antioxidant 264, 25 parts of light white carbon black, 30 parts of hollow glass microspheres, 5 parts of phenolic resin, 1.0 part of accelerator DM and 0.6 part of accelerator D.

4. The light weight rubber boot shoe mix compound of claim 1, characterized by: the light white carbon black is white carbon black YH350 produced by Nanping Jia union chemical industry Co.

5. A light weight rubber boot shoe tread mix compound as claimed in claim 4, wherein: the surfaces of the hollow glass beads are modified by a coupling agent.

6. A light weight rubber boot shoe mix compound as claimed in claim 5, characterized in that: the hollow glass beads are hollow glass beads HY-5020 produced by Zhejiang Haiyue New materials GmbH.

Technical Field

The invention relates to the field of rubber boot materials, in particular to a light rubber boot vamp compound rubber material.

Background

The existing boots generally have the problem of heavy weight and are inconvenient to wear. For example, the specific gravity of the boot surface of the traditional hot vulcanization rubber boot is generally about 1.30-1.40, the whole pair of rubber boots is heavy, the specific gravity of the whole pair of rubber boots is generally 1000 g-3500 g/pair from the common rubber boots to the special protective rubber boots, and particularly, the consumption of rubber materials on the boot surface is more than 1.2 kg per pair of the special protective rubber boots (such as heavy industrial and mining boots), so that certain influence is caused on the protection operation. The foamed rubber has lighter performance than non-foamed rubber, and the existing rubber has lighter weight after being foamed, but has unsatisfactory mechanical properties, can only be used for rain boot materials with lower requirements on service performance, and has limited service life.

Disclosure of Invention

In view of the above, the invention aims to provide a rubber compound for a boot vamp of a lightweight rubber boot, which can achieve the purpose of reducing the weight of the rubber boot by remarkably reducing the specific gravity of the rubber compound.

The invention relates to a light rubber boot vamp compound rubber material which comprises the following raw materials in parts by weight: 70-90 parts of natural rubber, 5-10 parts of high styrene rubber, 5-10 parts of thermoplastic styrene-butadiene rubber, 1.5-2.5 parts of sulfur, 1.0-2.0 parts of stearic acid, 2-4 parts of active zinc oxide, 0.8-1.5 parts of an anti-aging agent MB, 0.8-1.5 parts of an anti-aging agent 264, 20-40 parts of light white carbon black, 25-45 parts of hollow glass microspheres, 2-8 parts of phenolic resin, 0.8-1.5 parts of a promoter DM and 0.4-0.8 part of a promoter D; the specific gravity of the light white carbon black is 1.2-1.5, and the specific gravity of the hollow glass beads is 0.18-0.21;

further, the sizing material comprises the following components in parts by weight: 75-85 parts of natural rubber, 8-10 parts of high styrene rubber, 8-10 parts of thermoplastic styrene-butadiene rubber, 1.8-2.2 parts of sulfur, 1.3-1.7 parts of stearic acid, 2-3 parts of active zinc oxide, 0.8-1.2 parts of an anti-aging agent MB, 0.8-1.2 parts of an anti-aging agent 264, 20-30 parts of light white carbon black, 25-35 parts of hollow glass microspheres, 4-6 parts of phenolic resin, 0.9-1.2 parts of a promoter DM and 0.5-0.7 part of a promoter D;

further, 80 parts of natural rubber, 10 parts of high styrene rubber, 10 parts of thermoplastic styrene-butadiene rubber, 2.0 parts of sulfur, 1.5 parts of stearic acid, 2.5 parts of active zinc oxide, 1 part of an anti-aging agent MB, 1 part of an anti-aging agent 264, 25 parts of light white carbon black, 30 parts of hollow glass microspheres, 5 parts of phenolic resin, 1.0 part of an accelerator DM and 0.6 part of an accelerator D;

further, the light white carbon black is light white carbon black YH350 produced by Nanping Jia union chemical industry Co., Ltd, Fujia province;

further, the surfaces of the hollow glass beads are modified by a coupling agent;

further, the hollow glass beads are hollow glass beads HY-5020 produced by Zhejiang Haiyue New materials GmbH.

The invention has the beneficial effects that: the rubber compound for the boot vamp of the light rubber boot has the characteristics of high rubber content and light specific gravity (about 1.08), and the tensile strength is more than or equal to 14 Ma; the elongation is more than or equal to 500 percent, the rebound resilience and the stiffness meet the product requirements, the rubber material is used for special protective rubber boots (such as various industrial and mining boots), the weight of the original protective rubber boots with double weight of 2.4Kg-3.4Kg can be successfully reduced to about 2.2 Kg-3.1 Kg, the weight reduction is very obvious for miners with very large daily walking amount and workload, the rolling shrinkage of the protective boots is small under the conditions of high rubber content and small reinforcing agent consumption, the patterns are clear, the boot surface stiffness is good, and the problems of large rolling shrinkage, unclear patterns, poor boot surface stiffness and the like caused by low reinforcing agent (such as light white carbon black and the like) consumption with high rubber content and small reinforcing agent consumption are solved.

Detailed Description

The rubber compound for the shoe surface of the light rubber boot comprises the following raw materials in parts by weight: 70-90 parts of natural rubber, 5-10 parts of high styrene rubber, 5-10 parts of thermoplastic styrene-butadiene rubber, 1.5-2.5 parts of sulfur, 1.0-2.0 parts of stearic acid, 2-4 parts of active zinc oxide, 0.8-1.5 parts of an anti-aging agent MB, 0.8-1.5 parts of an anti-aging agent 264, 20-40 parts of light white carbon black, 25-45 parts of hollow glass microspheres, 2-8 parts of phenolic resin, 0.8-1.5 parts of a promoter DM and 0.4-0.8 part of a promoter D, wherein the specific gravity of the light white carbon black is 1.2-1.5, and the specific gravity of the hollow glass microspheres is 0.18-0.21; multiple rubbers are adopted for matching use, the specific gravity of the natural rubber is 0.93, and reinforcing agents and filling agents with larger specific gravity are less used, so that the rubber content is improved; synergy between natural rubber, high styrene rubber and thermoplastic styrene-butadiene rubber (SEBS): in order to compensate the strength and boot surface stiffness (hardness) reduction caused by too little reinforcing agent dosage, solve the reinforcement of natural rubber, and increase the tensile strength and stiffness of rubber material by using part of high styrene rubber; the SEBS is used for reinforcing the natural rubber, and the advantages of small calendering shrinkage and clear patterns of the SEBS are used, so that the problems of large calendering shrinkage and unclear patterns caused by high glue content of a natural rubber formula are solved. The light white carbon black with the specific gravity of 1.2-1.5 and the hollow glass beads with the specific gravity of 0.18-0.21 are adopted to further greatly reduce the specific gravity of the rubber material, other performances of the rubber material for the vamp are not affected, the phenolic resin is adopted to play a role of a softener during mixing, a tackifying role is played to a semi-finished rubber sheet, a reinforcing and hardening role is played after vulcanization, and the stiffness of the vamp is improved.

Preferably, the sizing material comprises the following components in parts by weight: 75-85 parts of natural rubber, 8-10 parts of high styrene rubber, 8-10 parts of thermoplastic styrene-butadiene rubber, 1.8-2.2 parts of sulfur, 1.3-1.7 parts of stearic acid, 2-3 parts of active zinc oxide, 0.8-1.2 parts of an anti-aging agent MB, 0.8-1.2 parts of an anti-aging agent 264, 20-30 parts of light white carbon black, 25-35 parts of hollow glass microspheres, 4-6 parts of phenolic resin and 0.9-1.2 parts of an accelerator DM, and 0.5-0.7 part of an accelerator D;

more preferably, 80 parts of natural rubber, 10 parts of high styrene rubber, 10 parts of thermoplastic styrene-butadiene rubber, 2.0 parts of sulfur, 1.5 parts of stearic acid, 2.5 parts of active zinc oxide, 1 part of anti-aging agent MB, 1 part of anti-aging agent 264, 25 parts of light white carbon black, 30 parts of hollow glass microspheres, 5 parts of phenolic resin, 1.0 part of accelerator DM and 0.6 part of accelerator D;

in this embodiment, the light white carbon black is light white carbon black YH350 produced by nanping jia union chemical limited company in fujia province; the surfaces of the hollow glass beads are modified by a coupling agent; the hollow glass beads are hollow glass beads HY-5020 produced by Zhejiang Haiyue New materials GmbH; hollow glass bead HY-5020: the specific gravity is about 0.20, which is far lower than the specific gravity of fillers such as common commercial white carbon black (the specific gravity is between 2.3 and 2.6), light calcium carbonate (the specific gravity is about 2.2) and the like. The surface is modified by a coupling agent, and the reinforcing effect is far better than that of light calcium carbonate and argil and is only slightly inferior to that of white carbon black.