CN116100921A - 一种smc模压整体浴室平板墙板的制作工艺 - Google Patents

一种smc模压整体浴室平板墙板的制作工艺 Download PDF

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CN116100921A
CN116100921A CN202310096949.5A CN202310096949A CN116100921A CN 116100921 A CN116100921 A CN 116100921A CN 202310096949 A CN202310096949 A CN 202310096949A CN 116100921 A CN116100921 A CN 116100921A
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smc
bathroom
wallboard
inner layer
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胡福涛
张雪霞
梁胜初
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Wuhu Keyi Building Materials Co ltd
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    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B3/26Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
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    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
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    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/46Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose specially adapted for making walls
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    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/24Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
    • B32B2037/243Coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B32B2260/02Composition of the impregnated, bonded or embedded layer
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    • B32LAYERED PRODUCTS
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    • B32B2260/00Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04Impregnation, embedding, or binder material
    • B32B2260/046Synthetic resin
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/70Other properties
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Abstract

本发明属于整体浴室墙板领域,具体的说是一种SMC模压整体浴室平板墙板的制作工艺,包括浴室墙板主体;所述墙板主体由SMC片料高温高压模压而成,所述SMC片料包括内层,所述内层的上下两端皆设置有外层,所述内层为短切玻璃纤维材质,所述外层的外侧设置有聚乙烯薄膜;该制作工艺包括以下步骤:第一步制备树脂组合物,第二步将树脂组合物涂敷在上、下两组所设置的聚乙烯薄膜上,形成SMC的外层;第三步将组合物通过压实机压挤并增稠揭去外侧的聚乙烯薄膜,第四步模压固化成型并在外侧包覆保护膜,在安全后将保护膜揭下,通过配方调整和模压工艺优化,实现了使其在应用过程中可直接固定在平整的原始墙面作为室内装饰板使用的功能。

Description

一种SMC模压整体浴室平板墙板的制作工艺
技术领域
本发明涉及整体浴室墙板领域,具体是一种SMC模压整体浴室平板墙板的制作工艺。
背景技术
SMC即片状模塑料,SMC复合材料及其SMC模压制品,具有优异的电绝缘性能、机械性能、热稳定性、耐化学防腐性,被广泛的使用在内墙墙面装饰和旧房改造卫生间等场景当中。
现有SMC模压整体浴室墙板为了保证克服壁厚差所带来的应力不匀而产生的整体浴室墙板歪扭变形,一般通过增设加强筋的方式来增强整体浴室墙板的强度和刚性,现有的带有加强筋的SMC模压整体浴室墙板厚度为25mm。
现有SMC模压整体浴室墙板因在外侧使用加强筋其厚度为25mm左右,通过使用加强筋增强整体浴室墙板的强度和刚性会导致整体浴室墙板的外侧具有凸起,在对SMC模压整体浴室墙板安装在墙面上时还需要在墙面上与加强筋对应的位置处进行开槽,进而导致安装操作较为不便;因此,针对上述问题提出一种SMC模压整体浴室平板墙板的制作工艺。
发明内容
为了弥补现有技术的不足,现有SMC模压整体浴室墙板因使用加强筋加强增强整体浴室墙板的强度和刚性会导致整体浴室墙板的外侧具有凸起,在对SMC模压整体浴室墙板安装在墙面上时还需要在墙面上与加强筋对应的位置处进行开槽,进而导致安装操作较为不便的问题,本发明提出一种SMC模压整体浴室平板墙板的制作工艺。
本发明解决其技术问题所采用的技术方案是:本发明所述的一种SMC模压整体浴室平板墙板的制作工艺,包括浴室墙板主体,所述墙板主体由SMC片料高温高压模压而成,所述SMC片料包括内层;所述浴室墙板主体包括内层,所述内层的上下两端皆设置有外层,所述内层为短切玻璃纤维材质,所述外层的外侧设置有聚乙烯薄膜;
该制作工艺包括以下步骤:
S1:制备树脂组合物:按配方加入不饱和聚酯树脂、低收缩添剂、引发剂、内脱模剂和增稠剂,搅拌10-30min,使这些原材料充分混合均匀,再加入填料,搅拌均匀,制成树脂组合物;
S2:通过刮刀,将树脂组合物均匀涂敷在上、下两组所述外层上;再通过调节切割器切割内层,然后将内层均匀地撒在涂敷有树脂组合物的外层上,使内层浸渍在树脂组合物的内部;将上下两组所述外层相对粘贴,形成一种上下面均覆盖有外层的组合物;
S3:将所述组合物通过压实机压挤,使所述内层与树脂组合物充分浸渍,成型为片材进行收卷;将收卷的片材运到增稠室增稠,增稠室的温度设置为40-50℃,增稠时间为12-36h,将外层外侧的聚乙烯薄膜揭去得到增稠后的片材;
S4:模压固化成型:将S3中增稠处理后所得的增稠后的片材称重裁切好铺设至预热好的模具内,增稠后的片材的铺设面积为最终制得的浴室墙板主体正投影面积的40%-70%,模压过程中型腔在上、型芯在下,铺料的时候采用多层叠加的方式,保证增稠后的片材之间具有足够的流动性,利于增稠后的片材之间的气体排出,模压完成后得到浴室墙板主体,在浴室墙板主体的外侧贴上保护膜避免在运输的过程中产生划痕。
优选的,所述S1中在对树脂组合物进行制备时搅拌的速度为400-800r/min,温度为20-60℃;所述S2中在对内层进行切割时控制内层的长度为18-30mm。
优选的,所述S4中模压固化成型时的模压条件为型腔温度130-140℃,型芯温度125-130℃,保压时间120-360s,压机合模至剩余距离12-15mm时,合模速度控制在0.8mm/s-1.2mm/s,以更好地保证浴室墙板主体模压制品的质量,模压完成后进行修边。
优选的,所述S4中在对增稠后的片材通过压实机压挤时压实机的上模具内侧设置有凸起,下模具为平整光滑的模具,使得加工出的浴室墙板主体为一侧具有网格状凹陷纹路。
优选的,所述浴室墙板主体按重量份计由如下重量配比的组分混合而成:
Figure BDA0004071956660000031
优选的,所述内脱模剂为硬脂酸锌或硬脂酸钙或者二者的混合物,组合的比例为0.85-1:1.15,所述的填料为粒径小于等于10μm的氢氧化铝微粉或碳酸钙微粉或者二者的组合,组合的比例为0.75-1.25:1。
优选的,所述的引发剂为过氧化苯甲酸叔丁酯或过氧化2-乙基已酸叔丁酯或二者的组合,组合的比例为0.9-1.1:1。
优选的,所述不饱和聚酯树脂为选自邻苯型不饱和树脂、间苯型不饱和树脂、环氧乙烯基酯不饱和树脂及乙烯基树脂中的一种或多种的组合,组合的比例为1.1:0.8-1.1:0.85:0.95-1.15。
优选的,所述低收缩剂为PMMA、丙烯酸酯共聚物中的一种或两种的组合,组合的比例为0.8-1.15:1。
本发明的有益之处在于:
1.本发明通过配方调整和模压工艺优化精确控制模压时的各项参数,实现了保证SMC模压整体浴室墙板的平整不变形,使其在应用过程中可直接固定在平整的原始墙面上作为室内装饰板使用的功能,采用该种工艺制作的SMC模压整体浴室墙板厚度约为5mm,相较于现有的厚度为25mm带有加强筋的SMC模压整体浴室墙板强度未产生显著下降,厚度大幅降低,适用于旧房改造卫生间的应用场所,解决了现有SMC模压整体浴室墙板因使用加强筋加强增强整体浴室墙板的强度和刚性会导致整体浴室墙板的外侧具有凸起,在对SMC模压整体浴室墙板安装在墙面上时还需要在墙面上与加强筋对应的位置处进行开槽,进而导致安装操作较为不便的问题,提高了对SMC模压整体浴室墙板进行安装的效率,保留了SMC材料防水,性能好,强度高的特点,按照本案中的制作工艺所得的成品厚度约为5mm,相较于传统的具有加强筋的整体浴室墙板的厚度大大降低,而强度相较于传统的整体浴室墙板却没有产生较大的变化,成品板面平整度较传统的整体浴室墙板也更加平整,增强了与墙面之间的贴合度,也减小了在运输的过程中所占用的空间。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。
图1为本发明的浴室墙板主体整体立体结构示意图;
图2为本发明的浴室墙板主体剖面结构示意图;
图3为本发明的工艺流程结构示意图。
图中:1、内层;2、外层。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
实施例一
请参阅图1-图3所示,一种SMC模压整体浴室平板墙板的制作工艺,包括浴室墙板主体;所述墙板主体由SMC片料高温高压模压而成,所述SMC片料包括内层1,所述浴室墙板主体包括内层1,所述内层1的上下两端皆设置有外层2,所述内层1为短切玻璃纤维材质,所述外层2的外侧设置有聚乙烯薄膜;
该制作工艺包括以下步骤:
S1:制备树脂组合物:按配方加入不饱和聚酯树脂、低收缩添剂、引发剂、内脱模剂和增稠剂,搅拌10-30min,使这些原材料充分混合均匀,再加入填料,搅拌均匀,制成树脂组合物;
S2:通过刮刀,将树脂组合物均匀涂敷在上、下两组所述外层2上;再通过调节切割器切割内层1,然后将内层1均匀地撒在涂敷有树脂组合物的外层2上,使内层1浸渍在树脂组合物的内部;将上下两组所述外层2相对粘贴,形成一种上下面均覆盖有外层2的组合物;
S3:将所述组合物通过压实机压挤,使所述内层1与树脂组合物充分浸渍,成型为片材进行收卷;将收卷的片材运到增稠室增稠,增稠室的温度设置为40-50℃,增稠时间为12-36h,将外层2外侧的聚乙烯薄膜揭去得到增稠后的片材;
S4:模压固化成型:将S3中增稠处理后所得的增稠后的片材称重裁切好铺设至预热好的模具内,增稠后的片材的铺设面积为最终制得的浴室墙板主体正投影面积的40%-70%,模压过程中型腔在上、型芯在下,铺料的时候采用多层叠加的方式,保证增稠后的片材之间具有足够的流动性,利于增稠后的片材之间的气体排出,模压完成后得到浴室墙板主体,在浴室墙板主体的外侧贴上保护膜避免在运输的过程中产生划痕,在安全后再将保护膜揭下。
进一步的,所述S1中在对树脂组合物进行制备时搅拌的速度为400r/min,温度为20℃;所述S2中在对内层1进行切割时控制内层1的长度为18mm;
进一步的,所述S4中模压固化成型时的模压条件为型腔温度130℃,型芯温度125℃,保压时间120s,压机合模至剩余距离12mm时,合模速度控制在0.8mm/s,以更好地保证浴室墙板主体模压制品的质量,模压完成后进行修边;
工作时,通过配方调整和模压工艺优化,实现了保证SMC模压整体浴室墙板的平整不变形,使其在应用过程中可直接固定在平整的原始墙面上作为室内装饰板使用的功能,解决了现有SMC模压整体浴室墙板因使用加强筋加强增强整体浴室墙板的强度和刚性会导致整体浴室墙板的外侧具有凸起,在对SMC模压整体浴室墙板安装在墙面上时还需要在墙面上与加强筋对应的位置处进行开槽,进而导致安装操作较为不便的问题,提高了对SMC模压整体浴室墙板进行安装的效率,保留了SMC材料防水,性能好,强度高的特点,通过模压完成后进行修边去除浴室墙板主体模压制品边角的毛刺,使浴室墙板主体模压制品的表面平整光滑。
进一步的,所述S4中在对增稠后的片材通过压实机压挤时压实机的上模具内侧设置有凸起,下模具为平整光滑的模具,使得加工出的浴室墙板主体为一侧具有网格状凹陷纹路;
工作时,通过模压加工出的表面的网格状凹陷纹路的作用起到增大摩擦力的效果,避免因表面过于光滑而使使用者在倚靠表面时产生滑动,进而导致使用者摔倒在地上的情况,起到对使用者进行保护的效果,在对SMC模压整体浴室墙板进行安装时,将光滑面朝向墙面,具有网格状凹陷的面朝向外侧,在对增稠后的片材通过压实机压挤时可以通过对压实机的上模具进行更换以使最后的成品SMC模压整体浴室墙板外侧具有不同的纹路。
进一步的,所述浴室墙板主体按重量份计由如下重量配比的组分混合而成:
Figure BDA0004071956660000071
进一步的,所述内脱模剂为硬脂酸锌或硬脂酸钙或者二者的混合物,组合的比例为0.85:1.15,所述的填料为粒径小于等于10μm的氢氧化铝微粉或碳酸钙微粉或者二者的组合,组合的比例为0.75:1;
工作时,在使用硬脂酸锌为内脱模剂时需远离火种、热源佩戴自吸过滤式防尘口罩,戴化学安全防护眼镜避免,产生粉尘;避免与氧化剂、酸类接触,搬运时要轻装轻卸,防止包装及容器损坏,硬脂酸钙与盐基性铅盐、铅皂配合可提高凝胶化速度,通过使用硬脂酸锌与硬脂酸钙配合可以有效的对浴室墙板主体进行脱模。
进一步的,所述的引发剂为过氧化苯甲酸叔丁酯或过氧化2-乙基已酸叔丁酯或二者的组合,组合的比例为0.9:1;
工作时,通过过氧化苯甲酸叔丁酯与过氧化2-乙基已酸叔丁酯产生复合型中温引发剂,使其引发剂的聚合效果更强。
进一步的,所述不饱和聚酯树脂为选自邻苯型不饱和树脂、间苯型不饱和树脂、环氧乙烯基酯不饱和树脂及乙烯基树脂中的一种或多种的组合,组合的比例为1.1:0.9:0.85:1.15;
工作时,邻苯型不饱和树脂、间苯型不饱和树脂、环氧乙烯基酯不饱和树脂及乙烯基树脂在热和过氧化苯甲酸叔丁酯或过氧化2-乙基已酸叔丁酯或二者的组合的引发剂的作用下,可固化成为一种不溶不融的高分子网状聚合物,通过将该不溶不融的高分子网状聚合物与玻璃纤维复合可以有效的提高SMC模压整体浴室墙板的机械强度,各个方面的性能相较于传统的树脂浇铸体相比有了很大的提高。
进一步的,所述低收缩剂为PMMA、丙烯酸酯共聚物中的一种或两种的组合,组合的比例为0.8:1;
工作时,通过采用PMMA和丙烯酸酯共聚物等低收缩剂起到使片料在模具内成型过程中具有更好的流动性,从而能够有效地将空气排出。
实施例二
对比实施例一,作为本发明的另一种实施方式,一种SMC模压整体浴室平板墙板的制作工艺,包括浴室墙板主体;所述墙板主体由SMC片料高温高压模压而成,所述SMC片料包括内层1,所述浴室墙板主体包括内层1,所述内层1的上下两端皆设置有外层2,所述内层1为短切玻璃纤维材质,所述外层2的外侧设置有聚乙烯薄膜;
该制作工艺包括以下步骤:
S1:制备树脂组合物:按配方加入不饱和聚酯树脂、低收缩添剂、引发剂、内脱模剂和增稠剂,搅拌10-30min,使这些原材料充分混合均匀,再加入填料,搅拌均匀,制成树脂组合物;
S2:通过刮刀,将树脂组合物均匀涂敷在上、下两组所述外层2上;再通过调节切割器切割内层1,然后将内层1均匀地撒在涂敷有树脂组合物的外层2上,使内层1浸渍在树脂组合物的内部;将上下两组所述外层2相对粘贴,形成一种上下面均覆盖有外层2的组合物;
S3:将所述组合物通过压实机压挤,使所述内层1与树脂组合物充分浸渍,成型为片材进行收卷;将收卷的片材运到增稠室增稠,增稠室的温度设置为40-50℃,增稠时间为12-36h,将外层2外侧的聚乙烯薄膜揭去得到增稠后的片材;
S4:模压固化成型:将S3中增稠处理后所得的增稠后的片材称重裁切好铺设至预热好的模具内,增稠后的片材的铺设面积为最终制得的浴室墙板主体正投影面积的40%-70%,模压过程中型腔在上、型芯在下,铺料的时候采用多层叠加的方式,保证增稠后的片材之间具有足够的流动性,利于增稠后的片材之间的气体排出,模压完成后得到浴室墙板主体,在浴室墙板主体的外侧贴上保护膜避免在运输的过程中产生划痕,在安全后再将保护膜揭下。
进一步的,所述S1中在对树脂组合物进行制备时搅拌的速度为800r/min,温度为60℃;所述S2中在对内层1进行切割时控制内层1的长度为30mm;
进一步的,所述S4中模压固化成型时的模压条件为型腔温度140℃,型芯温度130℃,保压时间360s,压机合模至剩余距离15mm时,合模速度控制在1.2mm/s,以更好地保证浴室墙板主体模压制品的质量,模压完成后进行修边;
工作时,通过模压完成后进行修边去除浴室墙板主体模压制品边角的毛刺,使浴室墙板主体模压制品的表面平整光滑。
进一步的,所述S4中在对增稠后的片材通过压实机压挤时压实机的上模具内侧设置有凸起,下模具为平整光滑的模具,使得加工出的浴室墙板主体为一侧具有网格状凹陷纹路。
进一步的,所述浴室墙板主体按重量份计由如下重量配比的组分混合而成:
Figure BDA0004071956660000091
Figure BDA0004071956660000101
进一步的,所述内脱模剂为硬脂酸锌或硬脂酸钙或者二者的混合物,组合的比例为1:1.15,所述的填料为粒径小于等于10μm的氢氧化铝微粉或碳酸钙微粉或者二者的组合,组合的比例为1:1。
进一步的,所述的引发剂为过氧化苯甲酸叔丁酯或过氧化2-乙基已酸叔丁酯或二者的组合,组合的比例为1:1。
进一步的,所述不饱和聚酯树脂为选自邻苯型不饱和树脂、间苯型不饱和树脂、环氧乙烯基酯不饱和树脂及乙烯基树脂中的一种或多种的组合,组合的比例为1.1:1:0.85:1。
进一步的,所述低收缩剂为PMMA、丙烯酸酯共聚物中的一种或两种的组合,组合的比例为1:1。
传统SMC与SMC模压整体浴室平板墙板性能对比
Figure BDA0004071956660000102
工作原理:第一步:制备树脂组合物:按配方加入不饱和聚酯树脂、低收缩添剂、引发剂、内脱模剂和增稠剂,搅拌10-30min,使这些原材料充分混合均匀,再加入填料,搅拌均匀,制成树脂组合物;第二步:通过刮刀,将树脂组合物均匀涂敷在上、下两组所述外层2上;再通过调节切割器切割内层1,然后将内层1均匀地撒在涂敷有树脂组合物的外层2上;将上下两组所述外层2相对粘贴,形成一种上下面均覆盖有外层2的片材;第三步:将所述片材通过压实机压挤,使所述内层1与树脂组合物充分浸渍,成型为片材进行收卷;将收卷的片材运到增稠室增稠,增稠室的温度设置为40-50℃,增稠时间为12-36h;第四步:模压固化成型:将S3中增稠处理后所得的片材称重裁切好铺设至预热好的模具内,片材的铺设面积为最终制得的浴室墙板主体正投影面积的40%-70%,模压过程中型腔在上、型芯在下,铺料的时候采用片料多层叠加的方式,保证片料具有足够的流动性,利于片料中气体的排出。
在本说明书的描述中,参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。

Claims (9)

1.一种SMC模压整体浴室平板墙板的制作工艺,包括浴室墙板主体;其特征在于:所述墙板主体由SMC片料高温高压模压而成,所述SMC片料包括内层(1),所述内层(1)的上下两端皆设置有外层(2),所述内层(1)为短切玻璃纤维材质,所述外层(2)的外侧设置有聚乙烯薄膜;
该制作工艺包括以下步骤:
S1:制备树脂组合物:按配方加入不饱和聚酯树脂、低收缩添剂、引发剂、内脱模剂和增稠剂,搅拌10-30min,使这些原材料充分混合均匀,再加入填料,搅拌均匀,制成树脂组合物;
S2:通过刮刀,将树脂组合物均匀涂敷在上、下两组所述外层(2)上;再通过调节切割器切割内层(1),然后将内层(1)均匀地撒在涂敷有树脂组合物的外层(2)上,使内层(1)浸渍在树脂组合物的内部;将上下两组所述外层(2)相对粘贴,形成一种上下面均覆盖有外层(2)的组合物;
S3:将所述组合物通过压实机压挤,使所述内层(1)与树脂组合物充分浸渍,成型为片材进行收卷;将收卷的片材运到增稠室增稠,增稠室的温度设置为40-50℃,增稠时间为12-36h,将外层(2)外侧的聚乙烯薄膜揭去得到增稠后的片材;
S4:模压固化成型:将S3中增稠处理后所得的增稠后的片材称重裁切好铺设至预热好的模具内,增稠后的片材的铺设面积为最终制得的浴室墙板主体正投影面积的40%-70%,模压过程中型腔在上、型芯在下,铺料的时候采用多层叠加的方式,保证增稠后的片材之间具有足够的流动性,利于增稠后的片材之间的气体排出,模压完成后得到浴室墙板主体,在浴室墙板主体的外侧贴上保护膜避免在运输的过程中产生划痕。
2.根据权利要求1所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述S1中在对树脂组合物进行制备时搅拌的速度为400-800r/min,温度为20-60℃;所述S2中在对内层(1)进行切割时控制内层(1)的长度为18-30mm。
3.根据权利要求2所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述S4中模压固化成型时的模压条件为型腔温度130-140℃,型芯温度125-130℃,保压时间120-360s,压机合模至剩余距离12-15mm时,合模速度控制在0.8mm/s-1.2mm/s,以更好地保证浴室墙板主体模压制品的质量,模压完成后进行修边。
4.根据权利要求3所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述S4中在对增稠后的片材通过压实机压挤时压实机的上模具内侧设置有凸起,下模具为平整光滑的模具,使得加工出的浴室墙板主体为一侧具有网格状凹陷纹路。
5.根据权利要求4所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述浴室墙板主体按重量份计由如下重量配比的组分混合而成:
Figure FDA0004071956650000021
6.根据权利要求5所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述内脱模剂为硬脂酸锌或硬脂酸钙或者二者的混合物,组合的比例为0.85-1:1.15,所述的填料为粒径小于等于10μm的氢氧化铝微粉或碳酸钙微粉或者二者的组合,组合的比例为0.75-1.25:1。
7.根据权利要求6所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述的引发剂为过氧化苯甲酸叔丁酯或过氧化2-乙基已酸叔丁酯或二者的组合,组合的比例为0.9-1.1:1。
8.根据权利要求7所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述不饱和聚酯树脂为选自邻苯型不饱和树脂、间苯型不饱和树脂、环氧乙烯基酯不饱和树脂及乙烯基树脂中的一种或多种的组合,组合的比例为1.1:0.8-1.1:0.85:0.95-1.15。
9.根据权利要求8所述的一种SMC模压整体浴室平板墙板的制作工艺,其特征在于:所述低收缩剂为PMMA、丙烯酸酯共聚物中的一种或两种的组合,组合的比例为0.8-1.15:1。
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