WO2019104815A1 - 木质素酚醛树脂胶黏剂的制备方法 - Google Patents
木质素酚醛树脂胶黏剂的制备方法 Download PDFInfo
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- WO2019104815A1 WO2019104815A1 PCT/CN2018/000045 CN2018000045W WO2019104815A1 WO 2019104815 A1 WO2019104815 A1 WO 2019104815A1 CN 2018000045 W CN2018000045 W CN 2018000045W WO 2019104815 A1 WO2019104815 A1 WO 2019104815A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/28—Chemically modified polycondensates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H6/00—Macromolecular compounds derived from lignin, e.g. tannins, humic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09J161/14—Modified phenol-aldehyde condensates
Definitions
- the invention belongs to the technical field of preparation of chemical polymer materials, and particularly relates to a preparation method of a lignin phenolic resin adhesive.
- Lignin is the second largest renewable resource in the world after cellulose and the most abundant aromatic compound in nature. Lignin is a three-dimensional network structure natural aromatic compound which is a structural unit of phenylpropane and highly crosslinked by a carbon-carbon bond and an ether bond. Because of its reactive functional groups such as alcoholic hydroxyl group and phenolic hydroxyl group, lignin can partially replace phenol to prepare lignin modified phenolic resin adhesive, which can reduce cost and achieve efficient use of biomass resources. Moreover, the prepared lignin-modified phenolic resin adhesive has low toxic residue such as free phenol, and has environmental protection significance.
- the invention patent CN201310246863.2 the method for preparing phenolic resin adhesive by using organic lignin instead of phenol, mainly solves the technical problem of using a large amount of non-renewable and highly toxic petrochemical raw materials in the preparation process of the existing phenolic resin adhesive, and adopting organic lignin instead
- the use of phenol for the preparation of phenolic resin adhesives greatly reduces the amount of phenol used in the non-renewable toxicity of phenolic resin synthesis, which not only greatly reduces the cost of producing phenolic resin, but also can be used by the use of organic lignin. Improve the performance of phenolic resin, obtain phenolic resin adhesive with higher bonding strength, lower formaldehyde emission and more stable performance.
- Invention patent CN201410018573.7 a preparation method of lignin-based environmentally friendly phenolic resin adhesive, comprising: step 1, quantitative analysis of hydroxyl groups of lignin raw materials by quantitative phosphorus spectrum nuclear magnetic resonance technology, and number of phenolic hydroxyl groups and alcoholic hydroxyl groups Calculate the number of active sites in the unit mass lignin raw material in the reaction with formaldehyde; in step 2, mix the lignin raw material and phenol to form a raw material mixture, and mix the mass ratio of the lignin raw material to the phenol at 1:9-8 Step 2: Calculate the total amount of formaldehyde; Step 4, the raw material mixture obtained in Step 2 is mixed with formaldehyde and an alkali solution to prepare a lignin-based environmentally friendly phenolic resin adhesive.
- the invention solves the problem of high cost and formaldehyde pollution of the traditional lignin-based phenolic resin adhesive product, and the lignin of the biomass refining by-product is
- Invention patent CN201510352326.5 a method for preparing lignin phenolic resin adhesive by using microwave-CuO treatment papermaking waste liquid, treating papermaking waste liquid with microwave and CuO, filtering, adjusting pH with hydrochloric acid to about 2 ⁇ 3, placing The oven is allowed to stand at the set temperature for a period of time, filtered while hot, washed to neutral, and dried to obtain acid lignin for use; the dried lignin is partially substituted for phenol, phenolated, methylolated, and phenolic
- the lignin-phenolic resin adhesive is prepared by the reaction; the invention improves the substitution rate of lignin to phenol, reduces the cost, reduces the pollution to the environment, and has the high bonding strength of the adhesive and the low free formaldehyde content.
- the performance of the item is in line with national standards.
- Phenolic resin adhesives have the disadvantages of low wear resistance, high cost, high curing temperature and long hot pressing time.
- the raw materials are non-renewable petrochemical energy products, which are not environmentally friendly, and the presence of formaldehyde leads to phenolic resin. The security is low.
- the present invention provides a method for preparing a lignin phenolic resin adhesive.
- a preparation method of a lignin phenolic resin adhesive is prepared by the following steps:
- Ball milling control the solid-liquid ratio (2 ⁇ 5): 1, select the ceramic ball with a ball-to-batch ratio of (3 ⁇ 5): 1, sequentially add O.3% dispersant and 0.1% defoamer, the rotation speed is 70 rpm, ball milling time is 3.0-4.0 h, preparing a powdered quartz slurry, then adding hydroxyethyl cellulose to prevent sedimentation of the powdered quartz slurry, and obtaining a powdered quartz slurry;
- the parts by weight take 20-30 parts of activated lignin, 24-40 parts of quartz-negative ion composite powder, 1 ⁇ 5 parts of hyperbranched polyester solid, 15-20 parts of phenol, and 1-5 parts of sodium hydroxide. 20 to 25 parts of formaldehyde, 20 to 50 parts of water, uniformly mixed into the reactor, heated to 80 to 100 ° C, and reacted at a constant temperature for 1 to 2 hours to obtain a lignin phenolic resin adhesive.
- Solid-fermented reed slag of Pseudomonas aeruginosa and Pleurotus ostreatus can effectively decompose cellulose and lignin in reed slag; rhamnolipid produced by Pseudomonas aeruginosa can promote the secretion of laccase from reed prion
- the decomposition and activation of lignin increase the content of methylol, phenolic hydroxyl and alcoholic hydroxyl groups on the lignin molecule, thereby increasing the degree of polymerization of lignin and phenolic resin.
- the main component of quartz is silica, which has porous properties, can load more negative oxygen ions, adsorb free formaldehyde and phenol, and at the same time, the negative ion powder contacts with moisture or oxygen in the air, releases negative oxygen ions after ionization, and improves air quality;
- the porous structure of quartz can combine a large number of hyperbranched polyesters to further increase the degree of polymerization of the phenolic resin adhesive.
- the amount of negative ions added is between 4 and 8%, the purification rate of formaldehyde is between 91 and 94%. After more than 8%, the purification rate changes slightly, but the binding rate of negative ion powder to quartz powder increases with the addition of negative ion powder. It is reduced, so 4 to 8% is the best.
- Hyperbranched polyester has a highly branched molecular structure, many kinds of groups, high solubility and low viscosity, which can effectively increase the polymerization speed of phenolic resin and increase the strength of resin glue. At the same time, it has more characteristics of various groups and can be more The combination of free phenol and formaldehyde reduces the release of phenol and formaldehyde to improve environmental safety; on the other hand, phenolic resin affects the gelation performance due to the addition of lignin and silica fume complex, which can be eliminated by using hyperbranched polyester. influences.
- the Pseudomonas aeruginosa described in the step (1) is preceded by a flask containing 20% of the activation medium, and the inoculum is 5%, and the culture is activated at 37° C. and 200 rpm. 12 to 16h.
- the activation medium is prepared from the following components: rapeseed oil 30 g/L, corn syrup dry powder 6 g/L, NaNO 3 6 g/L, K 2 HPO 4 0.9 g/L. , NaH 2 PO 4 0.6 g / L, MgSO 4 0.3 g / L, CaCl 2 0.05 g / L, NaCl 1.5 g / L, pH can be adjusted to 6.5 ⁇ 7.0.
- the average yield of rhamnolipid obtained by fermentation of Pseudomonas aeruginosa was 30.41 ⁇ 34.52g/L.
- the fineness of the powder quartzite described in the step (1) is 200 to 300 mesh.
- the particle size of the powdered quartz determines its dispersion and adsorption properties. The smaller the particle size, the better the dispersion but the lower the adsorption capacity. Therefore, in order to better disperse and simultaneously adsorb the negative ion powder, it is best to use 200 to 300 mesh quartz powder.
- the molar ratio of 2,2-bis[4-(2-hydroxyethoxy)phenyl]propane to trimesic acid described in the third step is (2 to 4):1.
- the molar ratio of the two monomers affects the molecular weight of the hyperbranched polyester and the hyperbranched polymer of the terminal group, the molar of 2,2-bis[4-(2-hydroxyethoxy)phenyl]propane and trimesic acid
- the ratio is 2:1, a polyester having a large terminal group dispersibility can be obtained, and more binding sites (groups) are obtained, thereby promoting the reaction polymerization rate of the resin and the strength and abrasion resistance of the resin.
- the ratio of the quartz-negative ion composite powder to the hyperbranched polyester solid in the fourth step is (8-15):1.
- the content of hyperbranched polyester affects the overall curing conversion rate of the resin.
- the content of the resin is low.
- the curing conversion rate of the resin is low.
- the low content of the resin has low bonding strength and wear resistance.
- the content of the hyperbranched polyester is 5 to 15%, the curing of the phenolic resin The rate is 95 to 98%, and the change rate of wear resistance and bonding strength is small, which has little effect on the performance of the overall resin.
- the preparation process of the invention has low requirements, does not require high-cost equipment and raw materials, and has good economic benefits;
- the phenolic resin adhesive prepared by the invention is safe and reliable, has low formaldehyde emission, and can release beneficial negative oxygen ions, has low environmental pollution and meets the demand for environmentally friendly materials;
- the phenolic resin adhesive prepared by the invention has high anti-wear performance, fast curing speed, low hot pressing temperature, high bonding strength and excellent water and weather resistance.
- the Pseudomonas aeruginosa is in a conical flask containing 20% of the activation medium, and the inoculation amount is 5%, and the culture is activated for 12 hours at 37° C. and 200 rpm;
- the activation medium is composed of the following components.
- the material was prepared: rapeseed oil 30g/L, corn syrup dry powder 6g/L, NaNO 3 6g/L, K 2 HPO 4 0.9g/L, NaH 2 PO 4 0.6g/L, MgSO 4 0.3g/L, CaCl 2 0.05g / L, NaCl 1.5g / L, adjust the pH to 6.5;
- lignin phenolic resin adhesive According to the parts by weight, take 20 parts of activated lignin, 24 parts of quartz-negative ion composite powder, 3 parts of hyperbranched polyester solid, 15 parts of phenol, 1 part of sodium hydroxide, 20 parts of formaldehyde, 20 parts of water, and evenly mixed. Adding to the reactor, heating to 80 ° C, constant temperature reaction for 1 h can obtain lignin phenolic resin adhesive;
- the Pseudomonas aeruginosa is in a conical flask containing 20% of the activation medium, and the inoculum is 5%, and the culture is activated for 16 hours at 37° C. and 200 rpm; the activation medium is composed of the following components.
- the material was prepared: rapeseed oil 30g/L, corn syrup dry powder 6g/L, NaNO 3 6g/L, K 2 HPO 4 0.9g/L, NaH 2 PO 4 0.6g/L, MgSO 4 0.3g/L, CaCl 2 0.05g / L, NaCl 1.5g / L, adjust the pH to 7.0
- the parts by weight take 30 parts of activated lignin, 30 parts of quartz-negative ion composite powder, 2 parts of hyperbranched polyester solid, 20 parts of phenol, 5 parts of sodium hydroxide, 25 parts of formaldehyde, 50 parts of water, and evenly mixed.
- the catalyst is added to the reactor, heated to 100 ° C, and reacted at a constant temperature for 2 hours to obtain a lignin phenolic resin adhesive.
- the Pseudomonas aeruginosa is in a conical flask containing 20% of the activation medium, and the inoculation amount is 5%, and the culture is activated for 14 hours at 37° C. and 200 rpm; the activation medium is composed of the following components.
- the material was prepared: rapeseed oil 30g/L, corn syrup dry powder 6g/L, NaNO 3 6g/L, K 2 HPO 4 0.9g/L, NaH 2 PO 4 0.6g/L, MgSO 4 0.3g/L, CaCl 2 0.05g / L, NaCl 1.5g / L, adjust the pH to 6.5 ⁇ 7.0
- the parts by weight take 25 parts of activated lignin, 40 parts of quartz-negative ion composite powder, 5 parts of hyperbranched polyester solid, 17 parts of phenol, 5 parts of sodium hydroxide, 23 parts of formaldehyde, 45 parts of water, and evenly mixed.
- the catalyst is added to the reactor, heated to 90 ° C, and reacted at a constant temperature for 1.5 h to obtain a lignin phenolic resin adhesive.
- the Pseudomonas aeruginosa is in a conical flask containing 20% of the activation medium, and the inoculation amount is 5%, and the culture is activated for 12 hours at 37° C. and 200 rpm; the activation medium is composed of the following components.
- the material was prepared: rapeseed oil 30g/L, corn syrup dry powder 6g/L, NaNO 3 6g/L, K 2 HPO 4 0.9g/L, NaH 2 PO 4 0.6g/L, MgSO 4 0.3g/L, CaCl 2 0.05g / L, NaCl 1.5g / L, adjust the pH to 6.5 ⁇ 7.0
- the parts by weight take 30 parts of activated lignin, 40 parts of quartz-negative ion composite powder, 4 parts of hyperbranched polyester solid, 20 parts of phenol, 6 parts of sodium hydroxide, 25 parts of formaldehyde, 30 parts of water, and evenly mixed.
- the catalyst is added to the reactor, heated to 90 ° C, and reacted at a constant temperature for 1.5 h to obtain a lignin phenolic resin adhesive.
- the Pseudomonas aeruginosa is in a conical flask containing 20% of the activation medium, and the inoculation amount is 5%, and the culture is activated for 12 hours at 37° C. and 200 rpm;
- the activation medium is composed of the following components.
- the material was prepared: rapeseed oil 30g/L, corn syrup dry powder 6g/L, NaNO 3 6g/L, K 2 HPO 4 0.9g/L, NaH 2 PO 4 0.6g/L, MgSO 4 0.3g/L, CaCl 2 0.05g / L, NaCl 1.5g / L, adjust the pH to 6.5;
- lignin phenolic resin adhesive According to the parts by weight, take 30 parts of activated lignin, 30 parts of quartz-negative ion composite powder, 3 parts of hyperbranched polyester solid, 20 parts of phenol, 5 parts of sodium hydroxide, 25 parts of formaldehyde, 40 parts of water, and evenly mixed. Adding to the reactor, heating to 80 ° C, constant temperature reaction for 1 h can obtain lignin phenolic resin adhesive;
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Abstract
Description
Claims (6)
- 一种木质素酚醛树脂胶黏剂的制备方法,其特征在于,由以下步骤制备而得:一、制备活化木质素(1)取芦苇茎叶,粉碎成芦苇渣,洒水对其进行湿润至含水量为60~70%,添加芦苇渣质量0.05~0.15%的吐温-80,混合均匀后装袋,接种铜绿假单胞菌进行无菌固态培养2~3天后,得到栽培基质,然后于栽培基质上接种凤尾菇菌,持续培养12~16天,培养温度保持在37~45℃;(2)取培养成熟并摘除凤尾菇后的栽培基质,磨碎成粉,加入醋酸至pH为3~3.5,常温下反应45~60min,然后过滤除去固体残渣,得到活化木质素;二、制备石英-负离子复合粉体(1)按重量份数比将40~50份水、0.5~0.7份分散剂5040、0.2~0.3份消泡剂A10混合,先分散搅拌混匀,再加入粉石英矿至瓷衬球磨机中进行球磨,控制固液比为(2~5)∶1,选取球料比为(3~5)∶1的陶瓷球,依次加入0.3%的分散剂和0.1%的消泡剂,转速为70转/分钟、球磨时间为3.0~4.0h,制备出粉石英浆体,然后加入羟乙基纤维素,防止粉石英浆体的沉降,得到的粉石英浆体;(2)按重量份数比取40~50份水、5~10份羟乙基纤维溶液混合,将负离子粉按照固液比为1∶1的比例加入,然后转入立式搅拌磨,球料比为(3~5)∶1的陶瓷球,依次加入0.3%的分散剂5040和0.1%的消泡剂A10,球磨1~2h,得到负离子剂浆体;(3)将粉石英浆体和负离子浆体按照质量比为(12~25)∶1混合,加入到砂磨机,球料比为(3~5)∶1的锆球湿法研磨30~60min,装入离心管中,用去离子水洗涤3~4次,常温下风干,得到石英-负离子复合粉体;三、制备超支化聚酯按质量份数比,取2,2-双[4-(2-羟乙氧基)苯基]丙烷20~30份,于210℃油浴中恒温熔融,加入均苯三甲酸,与0.1~0.5份辛酸亚锡;加热搅拌3.0~5.0h后,抽真空并保持强力搅拌反应1.0~2.0h,反应结束后趁热倒入甲醇中沉淀,过滤后溶于四氢呋喃再次于甲醇中沉淀,于100℃下烘干40~60h,得到超支化聚酯固体;四、制备木质素酚醛树脂胶黏剂按重量份数比,取活化木质素20~30份,石英-负离子复合粉体24~40份,超支化聚酯固体1~5份,苯酚15~20份,氢氧化钠1~5份,甲醛20~25份,水20~50份,混合均匀加入反应器中,升温至80~100℃,恒温反应1~2h即可得到木质素酚醛树脂胶黏剂。
- 根据权利要求1所述的木质素酚醛树脂胶黏剂的制备方法,其特征在于:步骤一(1)所述的铜绿假单胞菌先于活化培养基装液量为20%的锥形瓶中,接种量为5%,37℃、200rpm 下活化培养12~16h。
- 根据权利要求1所述的木质素酚醛树脂胶黏剂的制备方法,其特征在于:步骤二(1)所述的粉石英矿细度为200~300目。
- 根据权利要求1所述的木质素酚醛树脂胶黏剂的制备方法,其特征在于:步骤三所述的2,2-双[4-(2-羟乙氧基)苯基]丙烷与均苯三甲酸的摩尔比为(2~4)∶1。
- 根据权利要求1所述的木质素酚醛树脂胶黏剂的制备方法,其特征在于:步骤四所述的石英-负离子复合粉体与超支化聚酯固体用量比为(8~15)∶1。
- 根据权利要求2所述的木质素酚醛树脂胶黏剂的制备方法,其特征在于:所述活化培养基由以下浓度组分物质制备而成:菜籽油30g/L,玉米浆干粉6g/L,NaNO 36g/L,K 2HPO 40.9g/L,NaH 2PO 40.6g/L,MgSO 40.3g/L,CaCl 20.05g/L,NaCl 1.5g/L,调节pH至6.5~7.0即可。
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CN112521910A (zh) * | 2020-12-10 | 2021-03-19 | 合肥学院 | 一种海绵用高强度生物基粘合剂的制备方法 |
CN112521910B (zh) * | 2020-12-10 | 2022-07-12 | 合肥学院 | 一种海绵用高强度生物基粘合剂的制备方法 |
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