CN109735262B - Environment-friendly hot melt adhesive for spring mattress and preparation method thereof - Google Patents
Environment-friendly hot melt adhesive for spring mattress and preparation method thereof Download PDFInfo
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- CN109735262B CN109735262B CN201910033824.1A CN201910033824A CN109735262B CN 109735262 B CN109735262 B CN 109735262B CN 201910033824 A CN201910033824 A CN 201910033824A CN 109735262 B CN109735262 B CN 109735262B
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Abstract
The invention relates to the technical field of high-molecular adhesives, in particular to an environment-friendly hot melt adhesive for spring mattresses and a preparation method thereof. The environment-friendly hot melt adhesive for the spring mattress comprises rosin modified phenolic resin. The environment-friendly hot melt adhesive for the spring mattress prepared by the invention can keep excellent coating performance, has excellent initial viscosity and lasting viscosity, is colorless and tasteless, is environment-friendly, and has short bonding time.
Description
Technical Field
The invention belongs to the technical field of high-molecular adhesives, and particularly relates to an environment-friendly hot melt adhesive for a spring mattress and a preparation method thereof.
Background
The mattress material is mainly made of surface cloth material, sponge, natural latex and the like. In the prior art, the domestic mattress industry basically adopts a solvent type adhesive double-sided adhesive spraying mode, air pollution is serious, harmful substances such as toluene and formaldehyde are contained, odor is large and difficult to volatilize, and the health of people is seriously influenced. With the improvement of living standard and the rise of environmental protection consciousness, the solvent type glue is no longer a popular glue for mattress industry owners.
However, the glue for spring mattress materials in the market still mainly comprises water-based glue, but the water-based glue has a strong smell, and an irritant smell has great harm to human bodies, is not environment-friendly, and needs a long bonding time. Therefore, a hot melt adhesive product capable of replacing water-based adhesives is urgently needed.
Disclosure of Invention
In order to solve the problems, the invention provides an environment-friendly hot melt adhesive for spring mattresses, which is prepared from rosin modified phenolic resin.
As a preferable technical scheme, the raw materials for preparing the environment-friendly hot melt adhesive for the spring mattress also comprise pure monomer resin.
As a preferable technical scheme, the weight ratio of the rosin modified phenolic resin to the pure monomer resin is 1 (0.5-0.7).
As a preferable technical scheme, the raw material for preparing the environment-friendly hot melt adhesive for the spring mattress also comprises polyethylene terephthalate ionomer.
As a preferable technical scheme, the preparation raw material of the polyethylene terephthalate ionomer comprises polyethylene terephthalate and pyromellitic dianhydride.
As a preferable technical scheme, the raw materials for preparing the environment-friendly hot melt adhesive for the spring mattress also comprise SBR rubber, amino-terminated hyperbranched polyamide, an antioxidant and naphthenic oil.
As a preferable technical scheme, the preparation raw materials of the environment-friendly hot melt adhesive for the spring mattress comprise the following components in parts by weight: 15-25 parts of rosin modified phenolic resin, 8-15 parts of pure monomer resin, 2-5 parts of polyethylene terephthalate ionomer, 22-30 parts of SBR rubber, 1-3 parts of amino-terminated hyperbranched polyamide, 10-15 parts of naphthenic oil and 0.5-1 part of antioxidant.
As a preferable technical scheme, the preparation raw materials of the environment-friendly hot melt adhesive for the spring mattress comprise the following components in parts by weight: 17-22 parts of rosin modified phenolic resin, 10-13 parts of pure monomer resin, 3-4 parts of polyethylene terephthalate ionomer, 23-28 parts of SBR rubber, 1.5-2.5 parts of amino-terminated hyperbranched polyamide, 11-14 parts of naphthenic oil and 0.6-0.8 part of antioxidant.
As a preferable technical scheme, the preparation raw materials of the environment-friendly hot melt adhesive for the spring mattress comprise the following components in parts by weight: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
The second aspect of the invention provides a preparation method of an environment-friendly hot melt adhesive for spring mattresses, which comprises the following steps:
(1) putting the naphthenic oil and the antioxidant into a stainless steel reaction kettle;
(2) after the temperature is raised to 140 ℃, adding SBR rubber, and controlling the temperature of the reaction kettle at 150 ℃;
(3) after the SBR rubber is completely dissolved, adding rosin modified phenolic resin, pure monomer resin, polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, controlling the temperature of a stainless steel reaction kettle to be within 200 ℃, stirring for 30-60min, vacuumizing to-0.085 MPa, discharging, cooling and packaging.
Has the advantages that: the environment-friendly hot melt adhesive for the spring mattress prepared by the invention can keep excellent coating performance, has excellent initial viscosity and lasting viscosity, is colorless and tasteless, is environment-friendly, and has short bonding time.
Detailed Description
The technical features of the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, and the scope of protection is not limited thereto.
The words "preferred", "more preferred", and the like, in the present invention refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
When a range of values is disclosed herein, the range is considered to be continuous and includes both the minimum and maximum values of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range-describing features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to encompass any and all subranges subsumed therein. For example, a stated range from "1 to 10" should be considered to include any and all subranges between the minimum value of 1 and the maximum value of 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, and the like.
In order to solve the problems, the invention provides an environment-friendly hot melt adhesive for spring mattresses, which comprises rosin modified phenolic resin.
Rosin modified phenolic resin
The invention relates to a high molecular product generated by chemical reaction of alkylphenol, formaldehyde, polyalcohol and rosin. Due to the unique honeycomb structural characteristic, good pigment wetting property, good compatibility with high polymer matrix and low price, the pigment is used in various industries and fields of rubber, adhesives, coatings, papermaking, printing ink and the like.
In a preferred embodiment, the rosin-modified phenolic resin of the present invention is a product commercially available from wasteland Japan under the trademark TAMANOL 135.
In a preferred embodiment, the raw materials for preparing the environment-friendly hot melt adhesive for spring mattresses also comprise pure monomer resin.
Pure monomer resin
The pure monomer resin, i.e., AMS pure monomer resin, of the present invention generally refers to a-methylstyrene monomer, which is a by-product of the cumene process for producing phenol and acetone, and can also be prepared by the dehydrogenation of cumene, and generally refers to a low molecular weight polymer obtained by polymerizing a-methylstyrene monomer, which is a type of hydrocarbon petroleum resin.
In a preferred embodiment, the neat monomer resin of the present invention is a product commercially available from arizona chemical usa under the designation Sylvares SA 100.
In a preferred embodiment, the weight ratio of the rosin-modified phenolic resin to the pure monomer resin is 1 (0.5-0.7).
The inventor finds that the rosin modified phenolic resin has better initial viscosity in the research process, and the pure monomer resin can improve the processability due to better compatibility between the rosin modified phenolic resin and the pure monomer resin, so that the functional group interaction between the rosin modified phenolic resin, the intermolecular force are greatly enhanced, and the cohesive force is higher. When the weight ratio of the rosin modified phenolic resin to the pure monomer resin is 1 (0.5-0.7), the invention has better initial viscosity and permanent viscosity.
In a preferred embodiment, the raw material for preparing the environmentally-friendly hot melt adhesive for spring mattresses according to the present invention further comprises polyethylene terephthalate ionomer.
Polyethylene terephthalate ionomers
The polyethylene terephthalate ionomer of the present invention refers to a polyethylene terephthalate-based ionomer.
In a preferred embodiment, the starting materials for the preparation of the polyethylene terephthalate ionomers of the present invention include polyethylene terephthalate, pyromellitic anhydride.
In a preferred embodiment, the polyethylene terephthalate ionomer of the present invention is prepared by a condensation reaction of polyethylene terephthalate and pyromellitic anhydride.
In a preferred embodiment, the step of preparing the polyethylene terephthalate ionomer of the present invention comprises: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
In the process of research, the inventor of the present application finds that the polyethylene terephthalate ionomer can not only increase the dispersibility of the system, but also enable the components to have good compatibility, so that the processability of the product is more excellent. Surprisingly, when the polyethylene terephthalate ionomer is used, the cohesiveness of the product is greatly improved, and when the weight ratio of the polyethylene terephthalate ionomer to the amino-terminated hyperbranched polyamide is 1 (0.5-0.7), the invention has excellent cohesiveness and low odor performance. The inventor conjectures that the polyethylene terephthalate ionomer causes physical crosslinking of molecular chains to form ion pair aggregates, and simultaneously, the system is mutually associated to generate a large crosslinked network structure through physical actions such as hydrogen bonds and the like between the polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, so that the adsorption capacity to gas is improved.
In a preferred embodiment, the raw materials for preparing the environment-friendly hot melt adhesive for spring mattresses also comprise SBR rubber, amino-terminated hyperbranched polyamide, an antioxidant and naphthenic oil.
SBR rubber
The Styrene Butadiene Rubber (SBR) of the present invention is also known as a polystyrene butadiene copolymer. The physical and mechanical properties, the processing property and the product use performance of the rubber are close to those of natural rubber, some properties such as wear resistance, heat resistance, aging resistance and vulcanization speed are better than those of the natural rubber, the rubber can be used together with the natural rubber and various synthetic rubbers, and can be widely applied to the fields of production of tires, adhesive tapes, rubber tubes, electric wires and cables, medical appliances, various rubber products and the like, is the largest general synthetic rubber variety and is one of rubber varieties which are firstly realized in industrial production.
In a preferred embodiment, the SBR rubber of the present invention is available from Yueyang Barring Huaxing petrochemical Co., Ltd under the designation SBS-1401.
Amino-terminated hyperbranched polyamides
The hyperbranched polyamide has a highly branched structure and a large number of active end groups, and molecules are less entangled, so that the hyperbranched polyamide has the advantages of difficult crystallization, high solubility, low viscosity, high chemical reaction activity and the like. Wherein the amino-terminated hyperbranched polyamide is hyperbranched polyamide with an amino end group.
In a preferred embodiment, the amino-terminated hyperbranched polyamide of the invention is an amino-terminated hyperbranched polyamide prepared with an aliphatic backbone.
In a preferred embodiment, the amino-terminated hyperbranched polyamide of the invention is a product commercially available from Wuhan hyperbranched polyester, Inc. under the designation HyPer N103; the number of amino groups of the HyPer N103 is 12-16 amino groups/moL.
Naphthenic oil
The naphthenic oil has a saturated cyclic carbon chain structure and a saturated branched chain, and due to the structure, the naphthenic oil has partial properties of both aromatic hydrocarbons and straight-chain hydrocarbons, so that the naphthenic oil has better compatibility with rubber. In addition, as the naphthenic oil is derived from natural petroleum, the naphthenic oil has the characteristics of low pour point, high density, high viscosity, no toxic or side effect and the like, has the advantages of low price, reliable source and the like, and can effectively reduce the production cost.
In a preferred embodiment, the naphthenic oil of the present invention is a product commercially available from Nanjing Honghuaze petrochemical company Limited under the designation K10B.
Antioxidant agent
The antioxidant is an auxiliary agent commonly used in the adhesive, and the use of the antioxidant can not only reduce the thermal oxidation of the material in the processing process and improve the chemical stability, but also slow down the yellowing, aging and the like of the material caused by the change of illumination and temperature in the use process.
In some embodiments, the antioxidant of the present invention is selected from one or more of phenolic antioxidants, amine antioxidants, sulfur antioxidants, phosphite antioxidants.
In a preferred embodiment, the antioxidant is prepared by compounding an antioxidant 1010 and an antioxidant 168 according to a weight ratio of 1: 1.
In a preferred embodiment, the preparation raw material of the environment-friendly hot melt adhesive for the spring mattress comprises the following components in parts by weight: 15-25 parts of rosin modified phenolic resin, 8-15 parts of pure monomer resin, 2-5 parts of polyethylene terephthalate ionomer, 22-30 parts of SBR rubber, 1-3 parts of amino-terminated hyperbranched polyamide, 10-15 parts of naphthenic oil and 0.5-1 part of antioxidant.
In a preferred embodiment, the preparation raw material of the environment-friendly hot melt adhesive for the spring mattress comprises the following components in parts by weight: 17-22 parts of rosin modified phenolic resin, 10-13 parts of pure monomer resin, 3-4 parts of polyethylene terephthalate ionomer, 23-28 parts of SBR rubber, 1.5-2.5 parts of amino-terminated hyperbranched polyamide, 11-14 parts of naphthenic oil and 0.6-0.8 part of antioxidant.
In a preferred embodiment, the preparation raw material of the environment-friendly hot melt adhesive for the spring mattress comprises the following components in parts by weight: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
The second aspect of the invention provides a preparation method of an environment-friendly hot melt adhesive for spring mattresses, which comprises the following steps:
(1) putting the naphthenic oil and the antioxidant into a stainless steel reaction kettle;
(2) after the temperature is raised to 140 ℃, adding SBR rubber, and controlling the temperature of the reaction kettle at 150 ℃;
(3) after the SBR rubber is completely dissolved, adding rosin modified phenolic resin, pure monomer resin, polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, controlling the temperature of a stainless steel reaction kettle to be within 200 ℃, stirring for 30-60min, vacuumizing to-0.085 MPa, discharging, cooling and packaging.
The present invention will now be described in detail by way of examples, and the starting materials used are commercially available unless otherwise specified.
Examples
Example 1
Embodiment 1 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 15 parts of rosin modified phenolic resin, 8 parts of pure monomer resin, 2 parts of polyethylene terephthalate ionomer, 22 parts of SBR rubber, 1 part of amino-terminated hyperbranched polyamide, 10 parts of naphthenic oil and 0.5 part of antioxidant.
The rosin modified phenolic resin is a product commercially available from wasteland chemistry of Japan under the brand name TAMANOL 135.
The neat monomer resin is a product commercially available from arizona chemical usa under the designation Sylvares SA 100.
The preparation method of the polyethylene terephthalate ionomer comprises the following steps: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
The SBR rubber is a product which is commercially available from Yueyang Barring Huaxing petrochemical company Limited and has the brand number of SBS-1401.
The amino-terminated hyperbranched polyamide is a product which is commercially available from Wuhan hyperbranched polyester Co., Ltd and has the mark of HyPer N103.
The naphthenic oil is a product which is commercially available from Nanjing hong Han petrochemical company Limited and has the brand number of K10B.
The antioxidant is obtained by compounding an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1: 1.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress comprises the following steps:
(1) putting the naphthenic oil and the antioxidant into a stainless steel reaction kettle;
(2) after the temperature is raised to 140 ℃, adding SBR rubber, and controlling the temperature of the reaction kettle at 150 ℃;
(3) after the SBR rubber is completely dissolved, adding rosin modified phenolic resin, pure monomer resin, polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, controlling the temperature of a stainless steel reaction kettle within 200 ℃, stirring for 30min, vacuumizing to-0.085 MPa, discharging, cooling and packaging.
Example 2
Embodiment 2 provides an environment-friendly hot melt adhesive for spring mattresses, which comprises the following components: 25 parts of rosin modified phenolic resin, 15 parts of pure monomer resin, 5 parts of polyethylene terephthalate ionomer, 30 parts of SBR rubber, 3 parts of amino-terminated hyperbranched polyamide, 15 parts of naphthenic oil and 1 part of antioxidant.
The rosin modified phenolic resin is a product commercially available from wasteland chemistry of Japan under the brand name TAMANOL 135.
The neat monomer resin is a product commercially available from arizona chemical usa under the designation Sylvares SA 100.
The preparation method of the polyethylene terephthalate ionomer comprises the following steps: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
The SBR rubber is a product which is commercially available from Yueyang Barring Huaxing petrochemical company Limited and has the brand number of SBS-1401.
The naphthenic oil is a product which is commercially available from Nanjing hong Han petrochemical company Limited and has the brand number of K10B.
The antioxidant is obtained by compounding an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1: 1.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress comprises the following steps:
(1) putting the naphthenic oil and the antioxidant into a stainless steel reaction kettle;
(2) after the temperature is raised to 140 ℃, adding SBR rubber, and controlling the temperature of the reaction kettle at 150 ℃;
(3) after the SBR rubber is completely dissolved, adding rosin modified phenolic resin, pure monomer resin, polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, controlling the temperature of a stainless steel reaction kettle within 200 ℃, stirring for 60min, vacuumizing to-0.085 MPa, discharging, cooling and packaging.
Example 3
Embodiment 3 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 17 parts of rosin modified phenolic resin, 10 parts of pure monomer resin, 3 parts of polyethylene terephthalate ionomer, 23 parts of SBR rubber, 1.5 parts of amino-terminated hyperbranched polyamide, 11 parts of naphthenic oil and 0.6 part of antioxidant.
The rosin modified phenolic resin is a product commercially available from wasteland chemistry of Japan under the brand name TAMANOL 135.
The neat monomer resin is a product commercially available from arizona chemical usa under the designation Sylvares SA 100.
The preparation method of the polyethylene terephthalate ionomer comprises the following steps: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
The SBR rubber is a product which is commercially available from Yueyang Barring Huaxing petrochemical company Limited and has the brand number of SBS-1401.
The naphthenic oil is a product which is commercially available from Nanjing hong Han petrochemical company Limited and has the brand number of K10B.
The antioxidant is obtained by compounding an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1: 1.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress comprises the following steps:
(1) putting the naphthenic oil and the antioxidant into a stainless steel reaction kettle;
(2) after the temperature is raised to 140 ℃, adding SBR rubber, and controlling the temperature of the reaction kettle at 150 ℃;
(3) after the SBR rubber is completely dissolved, adding rosin modified phenolic resin, pure monomer resin, polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, controlling the temperature of a stainless steel reaction kettle within 200 ℃, stirring for 40min, vacuumizing to-0.085 MPa, discharging, cooling and packaging.
Example 4
Embodiment 4 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 22 parts of rosin modified phenolic resin, 13 parts of pure monomer resin, 4 parts of polyethylene terephthalate ionomer, 28 parts of SBR rubber, 2.5 parts of amino-terminated hyperbranched polyamide, 14 parts of naphthenic oil and 0.8 part of antioxidant.
The rosin modified phenolic resin is a product commercially available from wasteland chemistry of Japan under the brand name TAMANOL 135.
The neat monomer resin is a product commercially available from arizona chemical usa under the designation Sylvares SA 100.
The preparation method of the polyethylene terephthalate ionomer comprises the following steps: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
The SBR rubber is a product which is commercially available from Yueyang Barring Huaxing petrochemical company Limited and has the brand number of SBS-1401.
The naphthenic oil is a product which is commercially available from Nanjing hong Han petrochemical company Limited and has the brand number of K10B.
The antioxidant is obtained by compounding an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1: 1.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Example 5
Embodiment 5 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
The rosin modified phenolic resin is a product commercially available from wasteland chemistry of Japan under the brand name TAMANOL 135.
The neat monomer resin is a product commercially available from arizona chemical usa under the designation Sylvares SA 100.
The preparation method of the polyethylene terephthalate ionomer comprises the following steps: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
The SBR rubber is a product which is commercially available from Yueyang Barring Huaxing petrochemical company Limited and has the brand number of SBS-1401.
The naphthenic oil is a product which is commercially available from Nanjing hong Han petrochemical company Limited and has the brand number of K10B.
The antioxidant is obtained by compounding an antioxidant 1010 and an antioxidant 168 according to the weight ratio of 1: 1.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 1
Comparative example 1 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 0.1 part of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 1 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 2
Comparative example 2 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 50 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 2 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 3
Comparative example 3 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 0.05 part of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 3 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 4
Comparative example 4 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 50 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 4 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 5
Comparative example 5 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 0.1 part of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 5 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 6
Comparative example 6 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 20 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 6 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 7
Comparative example 7 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 0.05 part of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 7 the starting materials for the preparation were the same as in example 5 except that the weight parts were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Comparative example 8
Comparative example 8 provides an environment-friendly hot melt adhesive for spring mattresses, comprising the following components: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 15 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
Comparative example 8 the starting materials for the preparation were the same as in example 5 except that the parts by weight were different.
The preparation method of the environment-friendly hot melt adhesive for the spring mattress is the same as that of the embodiment 3.
Evaluation of Performance
1. And (3) testing initial adhesion: measured according to GB/T4852-2002B.
2. And (3) permanent adhesion testing: measured according to GB/T4851-84.
3.180 ° peel strength test: measured according to GB/T2792-1998.
4. Evaluation of odor grade: respectively putting each sample into a specific container bottle for odor evaluation in a standard laboratory environment, putting the container bottle into an oven at 80 +/-5 ℃ for 2h, cooling to 60 ℃, carrying out identification evaluation by 5 identifiers, and then taking an arithmetic average value, wherein the odor grade N is sigma Ni/5; the evaluation criteria are values from 1 to 5: 1 means no odour, 2 means slightly disturbing odour, 3 means generally disturbing odour, 4 means strongly disturbing odour and 5 means intolerable odour.
TABLE 1
| Initial viscosity/(cm) | Permanent adhesive force (h) | 180 degree peel strength (N/cm) | Evaluation of odor rating | |
| Example 1 | 2.7 | 46 | 4.8 | 1.1 |
| Example 2 | 2.5 | 45 | 4.7 | 1 |
| Example 3 | 2.4 | 48 | 5.3 | 1 |
| Example 4 | 2.2 | 52 | 5.8 | 1 |
| Example 5 | 2.1 | 55 | 5.9 | 1 |
| Comparative example 1 | 3.9 | 20 | 2.2 | 1.8 |
| Comparative example 2 | 4.2 | 16 | 3.3 | 2.2 |
| Comparative example 3 | 3.2 | 30 | 2.5 | 3.5 |
| Comparative example 4 | 3.7 | 22 | 3.2 | 3.1 |
| Comparative example 5 | 3.9 | 20 | 2.1 | 5 |
| Comparative example 6 | 3.8 | 21 | 4.2 | 2.6 |
| Comparative example 7 | 4.5 | 12 | 2.8 | 4.2 |
| Comparative example 8 | 3.8 | 22 | 3.6 | 3.7 |
Claims (4)
1. The environment-friendly hot melt adhesive for the spring mattress is characterized by comprising the following raw materials in parts by weight: 15-25 parts of rosin modified phenolic resin, 8-15 parts of pure monomer resin, 2-5 parts of polyethylene terephthalate ionomer, 22-30 parts of SBR rubber, 1-3 parts of amino-terminated hyperbranched polyamide, 10-15 parts of naphthenic oil and 0.5-1 part of antioxidant; the preparation method of the polyethylene terephthalate ionomer comprises the following steps: uniformly mixing polyethylene glycol terephthalate, pyromellitic dianhydride and zinc hydroxide, and carrying out melt blending in a plasticizing recorder at the blending temperature of 270 ℃ at the rotating speed of 40r/min to obtain a polyethylene glycol terephthalate ionomer; wherein the mass ratio of the polyethylene terephthalate to the pyromellitic dianhydride to the zinc hydroxide is 100:1.2: 1.8.
2. The environment-friendly hot melt adhesive for spring mattresses according to claim 1, characterized in that the raw materials for preparing the environment-friendly hot melt adhesive for spring mattresses comprise the following components in parts by weight: 17-22 parts of rosin modified phenolic resin, 10-13 parts of pure monomer resin, 3-4 parts of polyethylene terephthalate ionomer, 23-28 parts of SBR rubber, 1.5-2.5 parts of amino-terminated hyperbranched polyamide, 11-14 parts of naphthenic oil and 0.6-0.8 part of antioxidant.
3. The environment-friendly hot melt adhesive for spring mattresses according to claim 2, characterized in that the raw materials for preparing the environment-friendly hot melt adhesive for spring mattresses comprise the following components in parts by weight: 20 parts of rosin modified phenolic resin, 12 parts of pure monomer resin, 3.5 parts of polyethylene terephthalate ionomer, 25 parts of SBR rubber, 2 parts of amino-terminated hyperbranched polyamide, 13 parts of naphthenic oil and 0.7 part of antioxidant.
4. A method for preparing the environment-friendly hot melt adhesive for the spring mattress according to any one of claims 1 to 3, which is characterized by comprising the following steps: (1) putting the naphthenic oil and the antioxidant into a stainless steel reaction kettle; (2) after the temperature is raised to about 140 ℃, adding SBR rubber, and controlling the temperature of the reaction kettle to be about 150 ℃; (3) after the SBR rubber is completely dissolved, adding rosin modified phenolic resin, pure monomer resin, polyethylene terephthalate ionomer and amino-terminated hyperbranched polyamide, controlling the temperature of a stainless steel reaction kettle to be within 200 ℃, stirring for 30-60min, vacuumizing to-0.085 MPa, discharging, cooling and packaging.
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| CN201910033824.1A CN109735262B (en) | 2019-01-15 | 2019-01-15 | Environment-friendly hot melt adhesive for spring mattress and preparation method thereof |
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