CN110922921A

CN110922921A - Composite adhesive for sofa interior

Info

Publication number: CN110922921A
Application number: CN201910801789.3A
Authority: CN
Inventors: 陈慧; 沈杰一繁; 邵宝有; 吴添园; 王欣蕊
Original assignee: ZHEJIANG GOOD ADHESIVE CO Ltd
Current assignee: ZHEJIANG GOOD ADHESIVE CO Ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-03-27

Abstract

The invention belongs to the technical field of furniture glue, and particularly relates to a composite glue used in a sofa, which comprises the following raw materials of SIS, SBS, naphthenic oil, antioxidant and hydrogenated tackifying resin, and is prepared from the following components in percentage by mass: 30-40 parts of SIS; 15-20 parts of SBS; 3-7 parts of naphthenic oil; 10-15 parts of an antioxidant; 14-20 parts of hydrogenated tackifying resin, wherein the hydrogenated tackifying resin is processed hydrogenated rosin resin with a low acidity value, the antioxidant consists of 1010 antioxidant and 168 antioxidant, and the mixing ratio of the 1010 antioxidant to the 168 antioxidant is 2: 1. The composite adhesive for the interior of the sofa has low VOC discharge amount, strong yellowing resistance and good adhesive property, and is suitable for the adhesive repair of the filler in the interior of the sofa.

Description

Composite adhesive for sofa interior

Technical Field

The invention belongs to the technical field of glue for furniture, and particularly relates to composite glue for the interior of a sofa.

Background

Whether the home life is comfortable or not depends on home decoration to a certain extent. A comfortable sofa is indispensable in a living room. Therefore, people can consider when selecting the sofa. The commercially available sofas generally include three types, namely a low-back sofa, a high-back sofa and a common sofa between the two. There are three main types of sofa filler: A. the soft polyurethane foam (commonly known as sponge) B, the down feather filler C and the artificial cotton filler are used, different base materials need to be bonded and coated with a wooden frame, the traditional process uses water-based adhesive, the smell of the water-based adhesive is large, the pungent smell has great harm to a human body, the environment is not protected, the bonding time is long, the storage is difficult, the environment protection is increasingly emphasized in the current home industry, the composite adhesive for the interior of the sofa is required to replace the existing water-based adhesive, and not only can be used for the sofa by later customers, but also can be considered for the health of front-line workers by manufacturers.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a compound adhesive for the interior of a sofa.

The technical scheme adopted by the invention for solving the technical problems is as follows: the compound adhesive for the interior of the sofa is characterized in that: the raw materials comprise SIS, SBS, naphthenic oil, antioxidant and hydrogenated tackifying resin, and the hydrogenated tackifying resin is prepared from the following components in percentage by mass: 30-40 parts of SIS; 15-20 parts of SBS; 3-7 parts of naphthenic oil; 10-15 parts of an antioxidant; 14-20 parts of hydrogenated tackifying resin.

Preferably, the composition is prepared from the following components in percentage by mass: SIS, 40 parts; 20 parts of SBS; naphthenic oil, 4 parts; 12 parts of an antioxidant; 20 parts of hydrogenated tackifying resin.

Preferably, the hydrogenated tackifying resin is a treated hydrogenated rosin resin having a low acidity value.

Preferably, the antioxidant consists of 1010 antioxidant and 168 antioxidant, and the mixing ratio of the 1010 antioxidant to the 168 antioxidant is 2: 1.

Compared with the prior art, the invention has the following advantages and effects: low VOC emission, strong yellowing resistance and good adhesive property, and is suitable for the adhesive repair of the filling inside the sofa.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below.

1. Selection research of composite rubber raw material for sofa interior

The composite glue for the sofa interior described in the scheme has the function of being coated on the sofa interior to bond the interior filler of the sofa interior with wood so as to prevent the sofa interior from falling off. As furniture which needs to be used in life, health and environmental protection are the first priority, so that the material with low VOC (volatile organic compound) emission is selected from styrene elastomers (SBS), in order to match with the main material SBS and further improve the cohesiveness and strength of the colloid, in the research process, SBS is matched with different styrene elastomers, and the compounding ratio adjustment is repeatedly carried out, the mixed formula of SBS and SIS (styrene-isoprene-styrene) is determined, meanwhile, naphthenic oil is added to improve the intersolubility of the colloid, and the advantage of the composite adhesive used in the sofa in the aspect of VOC is ensured.

As a colloid for adhesive fixation, high viscosity with good adaptability is also required. In order to ensure that the sofa composite adhesive has better viscosity compared with the existing composite adhesive, hydrogenated resins with different softening points are selected to improve the bonding strength and the cohesive force, and through experimental screening of different proportions, rosin resin (12%) which is low in acid value and is treated by a special process is selected, so that the mixed gel has lighter smell and lighter color, and the bonding performance and the application range of the sofa composite adhesive to various substrates can be obviously improved.

In addition, as household glue, the guarantee of service life is also necessary. The aging resistance of the colloid is improved by combining the use performance requirements of the composite adhesive used in the sofa, various additives for enhancing the aging resistance are matched, the proportion and the types of the additives such as the antioxidant are determined through a relaxation formula, and finally, 1010 antioxidant and 168 antioxidant are selected and mixed to remarkably improve the aging resistance of the colloid.

Based on the above, the composite adhesive used in the sofa comprises SIS, SBS, naphthenic oil, antioxidant and hydrogenated tackifying resin, and is prepared from the following components in mass ratio: 30-40 parts of SIS; 15-20 parts of SBS; 3-7 parts of naphthenic oil; 10-15 parts of an antioxidant; 14-20 parts of hydrogenated tackifying resin. Wherein the hydrogenated tackifying resin is a processed hydrogenated rosin resin with a low acidity value, the antioxidant consists of 1010 antioxidant and 168 antioxidant, and the mixing ratio of the 1010 antioxidant to the 168 antioxidant is 2: 1.

2. Optimization research on mass ratio of compound rubber used inside sofa

Examples 1 to 9.

The preferred formulation components and parts by weight of this example are shown in table 1 below:

test method

The colloids obtained by the raw material ratios of examples 1 to 9 were tested using the following method:

1. VOC detects numerical value, scrapes the colloid on a plank, then gets a soft polyurethane foam and laminates, places and detect the intracavity at one section time later use VOC check out test set to detect this VOC content that detects the intracavity.

2. The curing time means that the glue body is scraped on a wood board, then a soft polyurethane foam is attached, timing is started from the attachment, the glue body is peeled from one side of the soft polyurethane foam until the situation that the soft polyurethane foam is peeled off or damaged occurs, namely the glue body is cured, and the recorded time is the curing time of the glue body.

3. And (3) bonding fastness, coating the two timbers by the colloid, bonding, placing in a normal temperature environment, taking out after 48 hours, hooking one side of the timbers by using a tensile tester at a constant speed, and recording the maximum force after the timbers are pulled apart.

The colloidal performance parameters obtained for examples 1-9 are shown in Table 2 below:

the tests of the examples 1 to 9 show that the colloid prepared by the mixture ratio of the example 9 has the best comprehensive performance.

Examples 10 to 17.

In the preferable formula obtained in the above experiment, the specific parts by mass are shown in table 3 below, wherein the antioxidant consists of 1010 antioxidant and 168 antioxidant, and the mixing ratio of the 1010 antioxidant to the 168 antioxidant is 2: 1:

test method

The colloids obtained by the raw material ratios of examples 10 to 17 were tested using the following method:

1. and (3) bonding fastness, coating the two timbers by the colloid, bonding, placing in a normal temperature environment, taking out after 48 hours, hooking one side of the timbers by using a tensile tester at a constant speed, and recording the maximum force after the timbers are pulled apart.

2. Yellowing resistance causes yellowing of furniture glue for several reasons, including light, weathering, and oxidation reactions. The colloid is coated outside the package, placed at the same air inlet, and subjected to certain light irradiation until yellowing occurs, and taken out.

The properties of the colloids obtained in examples 10 to 17 are shown in Table 4 below:

based on the tests of the above examples, the composite glue raw material for the interior of the sofa is preferably prepared from the following components in mass ratio: SIS, 40 parts; 20 parts of SBS; naphthenic oil, 4 parts; 12 parts of an antioxidant; 20 parts of hydrogenated tackifying resin, wherein 8 parts of 1010 antioxidant; 168 antioxidant, 4 portions.

3. Research on production process of compound adhesive for sofa interior

In this colloid production, in order to accomplish that the colloid can realize mixing more evenly, the colour is light, low VOC, adopted the bottom to ventilate in process of production, the mode of evacuation, promote the taking out of the low organic volatile matter in the production process, the effectual VOC volatility that reduces the product, it is stable to have guaranteed that the mattress is used for the inside compound of sofa to glue the performance, and show to have reduced the VOC content that the mattress is used for the inside compound of sofa to glue, make the product have the feature of environmental protection more, satisfy the environmental protection requirement of furniture trade to the furniture is with gluing, better application that is fit for the house trade.

The main technical indexes of the compound adhesive for the interior of the sofa described by the invention are as follows: 1. opening time: more than 1 min; 2. apparent viscosity (180 ℃), mpa.s: 1600 plus or minus 500; 3. softening point, DEG C: 82 +/-5; 4. peel strength (180 °), N/2.5 cm: is greater than 50.

The composite adhesive for the interior of the sofa has low VOC discharge amount, strong yellowing resistance and good adhesive property, and is suitable for the adhesive repair of the filler in the interior of the sofa.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The compound adhesive for the interior of the sofa is characterized in that: the raw materials comprise SIS, SBS, naphthenic oil, antioxidant and hydrogenated tackifying resin, and the hydrogenated tackifying resin is prepared from the following components in percentage by mass:

30-40 parts of SIS;

15-20 parts of SBS;

3-7 parts of naphthenic oil;

10-15 parts of an antioxidant;

14-20 parts of hydrogenated tackifying resin.

2. The compound adhesive for the interior of the sofa according to claim 1, which is prepared from the following components in percentage by mass:

SIS, 40 parts;

20 parts of SBS;

naphthenic oil, 4 parts;

12 parts of an antioxidant;

20 parts of hydrogenated tackifying resin.

3. A compound adhesive according to claim 1 or 2 for use in sofas, characterized in that: the hydrogenated tackifying resin is a treated hydrogenated rosin resin with a low acidity value.

4. A compound adhesive according to claim 1 or 2 for use in sofas, characterized in that: the antioxidant consists of 1010 antioxidant and 168 antioxidant, and the mixing ratio of the 1010 antioxidant to the 168 antioxidant is 2: 1.